diff --git a/app/controllers/users_controller.rb b/app/controllers/users_controller.rb index d7e4af7ab..dc9b11aee 100644 --- a/app/controllers/users_controller.rb +++ b/app/controllers/users_controller.rb @@ -1729,7 +1729,7 @@ class UsersController < ApplicationController # end # end @state = false - render :layout=>'new_base_user' + render :layout => 'edu_new_base_user' end #给某人留言 @@ -2128,13 +2128,22 @@ class UsersController < ApplicationController @user_fanlist = fan_query.order("#{Watcher.table_name}.id desc").limit(12); @courses = @user.courses.visible.not_deleted_not_end @courses_count = @courses.count - @courses = @courses.select("courses.*,(SELECT MAX(updated_at) FROM `course_activities` WHERE course_activities.course_id = courses.id) AS updatetime").order("updatetime desc").limit(8) + @courses = @courses.select("courses.*,(SELECT MAX(updated_at) FROM `course_activities` WHERE course_activities.course_id = courses.id) AS updatetime").order("updatetime desc") + @limit = 8 + @is_remote = true + @courses_pages = Paginator.new @courses_count, @limit, params['page'] || 1 + @offset ||= @courses_pages.offset + @courses = paginateHelper @courses, @limit + if @user == User.current @shixuns = @user.shixuns else @shixuns = @user.shixuns.where(:authentication => 1) end @shixuns_count = @shixuns.count + @shixuns_pages = Paginator.new @shixuns_count, @limit, params['page'] || 1 + @offset ||= @shixuns_pages.offset + @shixuns = paginateHelper @shixuns, @limit # if User.current == @user # # 点击小铃铛，更新点击时间 # update_onclick_time if params[:click_user_message] == 'true' diff --git a/app/views/challenges/_form.html.erb b/app/views/challenges/_form.html.erb index c36337ab7..841c5a950 100644 --- a/app/views/challenges/_form.html.erb +++ b/app/views/challenges/_form.html.erb @@ -28,7 +28,11 @@ toolbarIcons : function() { // Or return editormd.toolbarModes[name]; // full, simple, mini // Using "||" set icons align right. - return ["bold", "italic", "|", "list-ul", "list-ol", "|", "image", "code", "code-block", "|", "table", "watch", "clear"] + return ["bold", "italic", "|", "list-ul", "list-ol", "|", "code", "code-block", "|", "testIcon", "testIcon1", '|', "image", "table", '|', "watch", "clear" ] + }, + toolbarCustomIcons : { + testIcon : "
", + testIcon1 : "
" }, //这个配置在simple.html中并没有，但是为了能够提交表单，使用这个配置可以让构造出来的HTML代码直接在第二个隐藏的textarea域中，方便post提交表单。 saveHTMLToTextarea : true, @@ -50,7 +54,11 @@ toolbarIcons : function() { // Or return editormd.toolbarModes[name]; // full, simple, mini // Using "||" set icons align right. - return ["bold", "italic", "|", "list-ul", "list-ol", "|", "image", "code", "code-block", "|", "table", "watch", "clear"] + return ["bold", "italic", "|", "list-ul", "list-ol", "|", "code", "code-block", "|", "testIcon", "testIcon1", '|', "image", "table", '|', "watch", "clear" ] + }, + toolbarCustomIcons : { + testIcon : "
", + testIcon1 : "
" }, //这个配置在simple.html中并没有，但是为了能够提交表单，使用这个配置可以让构造出来的HTML代码直接在第二个隐藏的textarea域中，方便post提交表单。 saveHTMLToTextarea : true, @@ -61,7 +69,6 @@ imageFormats : ["jpg", "jpeg", "gif", "png", "bmp", "webp", "JPG", "JPEG", "GIF", "PNG", "BMP", "WEBP"], imageUploadURL : "<%= upload_with_markdown_path(:container_id => @shixun.id, :container_type => @shixun.class) %>"//url }); - }); @@ -160,7 +167,7 @@ <% end %>
  • - +
    <% if params[:action] == "edit" && @challenge_tags.count > 0 %> <% @challenge_tags.each do |tag| %> @@ -315,6 +322,44 @@ }); }); + + window.onload = function(){ + $("#challenge_task_pass [type=\"latex\"]").bind("click", function(){ + taskpass_editormd.cm.replaceSelection("```latex"); + taskpass_editormd.cm.replaceSelection("\n"); + taskpass_editormd.cm.replaceSelection("\n"); + taskpass_editormd.cm.replaceSelection("```"); + var __Cursor = taskpass_editormd.cm.getDoc().getCursor(); + taskpass_editormd.cm.setCursor(__Cursor.line-1, 0); + }); + + $("#challenge_answer [type=\"latex\"]").bind("click", function(){ + taskanswer_editormd.cm.replaceSelection("```latex"); + taskanswer_editormd.cm.replaceSelection("\n"); + taskanswer_editormd.cm.replaceSelection("\n"); + taskanswer_editormd.cm.replaceSelection("```"); + var __Cursor = taskanswer_editormd.cm.getDoc().getCursor(); + taskanswer_editormd.cm.setCursor(__Cursor.line-1, 0); + }); + + $("#challenge_task_pass [type=\"inline\"]").bind("click", function(){ + taskpass_editormd.cm.replaceSelection("$$$$"); + var __Cursor = taskpass_editormd.cm.getDoc().getCursor(); + taskpass_editormd.cm.setCursor(__Cursor.line, __Cursor.ch-2); + taskpass_editormd.cm.focus(); + }); + + $("#challenge_answer [type=\"inline\"]").bind("click", function(){ + taskanswer_editormd.cm.replaceSelection("$$$$"); + var __Cursor = taskanswer_editormd.cm.getDoc().getCursor(); + taskanswer_editormd.cm.setCursor(__Cursor.line, __Cursor.ch-2); + taskanswer_editormd.cm.focus(); + }); + $("[type=\"inline\"]").attr("title", "行内公式"); + $("[type=\"latex\"]").attr("title", "多行公式"); + + } + // 设置textarea的宽度到140以后出现滚动条 var test_set_inputs = document.getElementsByName("test_set[input][]"); var test_set_outputs = document.getElementsByName("test_set[output][]"); diff --git a/app/views/challenges/show.html.erb b/app/views/challenges/show.html.erb index 9541a0b60..92d1a2b01 100644 --- a/app/views/challenges/show.html.erb +++ b/app/views/challenges/show.html.erb @@ -27,7 +27,8 @@

    第<%= @challenge.position %>关<%= @challenge.subject %>

    - + + 编辑

    diff --git a/app/views/games/_code_actions.html.erb b/app/views/games/_code_actions.html.erb index 347a707ee..d65ce362f 100644 --- a/app/views/games/_code_actions.html.erb +++ b/app/views/games/_code_actions.html.erb @@ -116,6 +116,7 @@ latest_output: data.latest_output }); $("#game_test_set_results").html(html); + $("#blacktab_nav_1").trigger("click"); if(data.status == 2){ clearInterval(cm); clearInterval(intId); diff --git a/app/views/games/_game_results.html.erb b/app/views/games/_game_results.html.erb index 7141bcb29..90df28e23 100644 --- a/app/views/games/_game_results.html.erb +++ b/app/views/games/_game_results.html.erb @@ -115,6 +115,7 @@ } ); $("#game_test_set_results").html(html); + $("#blacktab_nav_1").trigger("click"); }); // 公开的测试集允许展开与隐藏 function toggle_test_case(t_case, id){ diff --git a/app/views/layouts/_footer.html.erb b/app/views/layouts/_footer.html.erb index 93190e9b9..aeee200fc 100644 --- a/app/views/layouts/_footer.html.erb +++ b/app/views/layouts/_footer.html.erb @@ -3,8 +3,8 @@
    • 网站首页
    • 服务协议
      • -
    • <%= link_to "支持", "#{Setting.protocol}://#{Setting.host_name}/forums/1/memos/1168", :class => "fl", :target=>"_blank" %>
      • -
    • 社区
      • +
    diff --git a/app/views/layouts/_logined_header.html.erb b/app/views/layouts/_logined_header.html.erb index 3ad3d5775..bb085f106 100644 --- a/app/views/layouts/_logined_header.html.erb +++ b/app/views/layouts/_logined_header.html.erb @@ -45,10 +45,10 @@
    - +
    + + + + + +
    +
    + <% is_current_user = User.current.logged? && User.current == @user %> + <% if User.current.logged? %> + <%= render :partial => 'layouts/logined_header' %> + <% else%> + <%= render :partial => 'layouts/unlogin_header' %> + <% end%> +
    + +
    +
    +
    +
    + <%= yield %> +
    +
    + +
    + <%= render :partial => 'layouts/footer' %> +
    + + + + +
    + + + \ No newline at end of file diff --git a/app/views/layouts/new_base_user.html.erb b/app/views/layouts/new_base_user.html.erb index 91ca49038..1bd24ce86 100644 --- a/app/views/layouts/new_base_user.html.erb +++ b/app/views/layouts/new_base_user.html.erb @@ -77,198 +77,200 @@
    -
    -
    -
    - <% if User.current.logged? && User.current == @user %> + <% if params[:action] != "user_newfeedback" %> +
    +
    +
    + <% if User.current.logged? && User.current == @user %> <%= link_to image_tag(url_to_avatar(@user),width:"238", height: "200", :id => 'nh_source_tx'), my_clear_user_avatar_temp_path, :remote => true %> - <% else %> + <% else %> <%=image_tag(url_to_avatar(@user),width:"238", height: "200", :id=>'nh_source_tx') %> - <% end %> -
    -
    -

    - <%= link_to @user.show_name, user_path(@user), :class => "mb5 fontGrey3" %> - <% if @user.user_extensions && @user.user_extensions.identity %> - （<%= get_user_roll @user %>） - <% end%> - <% if (@user.user_extensions && (@user.user_extensions.identity != 2) ) %> - - <% end %> -

    -

    <%= @user.login %>

    -

    - <% if !@user.user_extensions.school_id.blank? %> - <%= @user.user_extensions.school.name %> - <% end %> -

    - -     -
    - <% if User.current.logged?%> - <% if User.current == @user %> - <%= link_to '个人主页', homepage_user_path(@user), :class => "home-big-btn-grey", :target => '_blank' %> - <% else %> - <% if(@user.watched_by?(User.current)) %> - <%= link_to "取消关注", - watch_path(:object_type => 'user', :object_id => @user.id, :target_id => @user.id), - :class => "home-btn-grey fl mr12", - :method => "delete", - :remote => "true", - :title => "取消关注" %> - <% else %> - <%= link_to "添加关注", - watch_path(:object_type => 'user', :object_id => @user.id, :target_id => @user.id), - :class => "home-btn-grey fl mr12", - :method => "post", - :remote => "true", - :title => "添加关注" %> - <% end %> - <% if @user.base_homepage.nil? %> - TA的主页 - <% else %> - <%= link_to "TA的主页", homepage_user_path(@user.login), :class => 'home-btn-grey fl', :target => '_blank' %> - <% end %> - <% end %> <% end %>
    -
    - <% if is_current_user %> - <% if hidden_unproject_infos && user_course_count > 0 %> -
    -

    - <%= link_to "课程社区", user_course_community_path(User.current), :class => "fl" , :target => "_blank", :style => "color:#666" %> -

    - <%# if hidden_unproject_infos %> -
      -
    • - <%= link_to user_course_count > 0 ? "课程#{user_course_count}".html_safe : "课程", - user_course_community_path(User.current), :id => "user_course_list", :target => "_blank" %> -
      • - <% if user_manage_homework_count > 0 %> -
    • - <%= link_to user_manage_homework_count > 0 ? "我发布的作业#{user_manage_homework_count}".html_safe : "我发布的作业", - user_manage_homeworks_user_path(@user), :target => "_blank" %> -
      • - <% end %> - <% if user_receive_homework_count > 0 %> -
    • - <%= link_to "我收到的作业#{user_receive_homework_count}".html_safe, - user_receive_homeworks_user_path(@user), :target => "_blank" %> -
      • - <% end %> -
    • - <%= link_to "题库", user_homeworks_user_path(User.current), :target => "_blank", :class => "fl", :style => "color:#666" %> -
      • -
    • - <%= link_to "资源库", user_resource_user_path(User.current, :type => 1), :target => "_blank", :class => "fl", :style => "color:#666" %> -
      • -
    - <%# end %> -
    - <% end %> - <% if user_project_count > 0%> -
    -

    - <%= link_to "项目社区", user_project_community_path(User.current), :class => "fl", :target => "_blank", :style => "color:#666" %> -

    -
      -
    • - <%= link_to user_project_count > 0 ? "项目#{user_project_count}".html_safe : "项目", - user_project_community_path(User.current), :id => 'user_project_list', :target => "_blank" %> -
      • - <% if issues_author_is_self_count > 0 %> -
    • - <%= link_to issues_author_is_self_count > 0 ? "我发布的issue#{issues_author_is_self_count}".html_safe : "我发布的issue", - user_manage_issues_user_path(@user), :target => "_blank" %> -
      • - <% end %> - <% if issues_assigned_is_self_count > 0 %> -
    • - <%= link_to issues_assigned_is_self_count > 0 ? "我收到的issue#{issues_assigned_is_self_count}".html_safe : "我收到的issue", - user_receive_issues_user_path(@user), :target => "_blank" %> -
      • - <% end %> -
    -
    - <% end %> - <% if hidden_unproject_infos && user_contest_count > 0 %> -
    -

    - <%= link_to "竞赛社区", user_contest_community_path(User.current), :class => "fl" , :target => "_blank"%> -

    -
      -
    • - <%= link_to user_contest_count > 0 ? "竞赛#{user_contest_count}".html_safe : "竞赛", - user_contest_community_path(User.current), :id => "user_contest_list", :target => "_blank" %> -
      • -
    - <%# end %> -
    - <% end %> - <% else %> -
    -

    Ta在确实 - <%= time_tag(@user.created_on).html_safe %> -

    -
      - <% if hidden_unproject_infos && user_course_count > 0 %> -
    • - <%= link_to user_course_count > 0 ? "课程#{user_course_count}".html_safe : "课程", - user_course_community_path(@user), :id => "user_course_list", :class => "fl", :target => "_blank" %> -
      • - <% end %> - <% if user_project_count > 0 %> -
    • - <%= link_to user_project_count > 0 ? "项目#{user_project_count}".html_safe : "项目", - user_project_community_path(@user), :id => 'user_project_list', :class => "fl", :target => "_blank" %> -
      • - <% end %> - <% if hidden_unproject_infos && user_contest_count > 0 %> -
    • - <%= link_to user_contest_count > 0 ? "竞赛#{user_contest_count}".html_safe : "竞赛", - user_contest_community_path(@user), :id => 'user_contest_list', :class => "fl", :target => "_blank" %> -
      • - <% end %> -
    +
    +

    + <%= link_to @user.show_name, user_path(@user), :class => "mb5 fontGrey3" %> + <% if @user.user_extensions && @user.user_extensions.identity %> + （<%= get_user_roll @user %>） + <% end%> + <% if (@user.user_extensions && (@user.user_extensions.identity != 2) ) %> + + <% end %> +

    +

    <%= @user.login %>

    +

    + <% if !@user.user_extensions.school_id.blank? %> + <%= @user.user_extensions.school.name %> + <% end %> +

    + +
      +
    • + 博客 + <%= @user.blog.blog_comments.where("#{BlogComment.table_name}.parent_id is null").count %> +
      • +
    • + 关注 + <%= User.watched_by(@user).count %> +
      • +
    • + 粉丝 + <%= @user.watcher_users.count %> +
      • +
    +
    + <% if User.current.logged?%> + <% if User.current == @user %> + <%= link_to '个人主页', homepage_user_path(@user), :class => "home-big-btn-grey", :target => '_blank' %> + <% else %> + <% if(@user.watched_by?(User.current)) %> + <%= link_to "取消关注", + watch_path(:object_type => 'user', :object_id => @user.id, :target_id => @user.id), + :class => "home-btn-grey fl mr12", + :method => "delete", + :remote => "true", + :title => "取消关注" %> + <% else %> + <%= link_to "添加关注", + watch_path(:object_type => 'user', :object_id => @user.id, :target_id => @user.id), + :class => "home-btn-grey fl mr12", + :method => "post", + :remote => "true", + :title => "添加关注" %> + <% end %> + <% if @user.base_homepage.nil? %> + TA的主页 + <% else %> + <%= link_to "TA的主页", homepage_user_path(@user.login), :class => 'home-btn-grey fl', :target => '_blank' %> + <% end %> + <% end %> + <% end %>
    - <% end %> -
    -
      -
    • - <%= link_to "留言", feedback_path(@user, :host=> Setting.host_user)%> -
      • -
    -
    +
    + <% if is_current_user %> + <% if hidden_unproject_infos && user_course_count > 0 %> +
    +

    + <%= link_to "课程社区", user_course_community_path(User.current), :class => "fl" , :target => "_blank", :style => "color:#666" %> +

    + <%# if hidden_unproject_infos %> +
      +
    • + <%= link_to user_course_count > 0 ? "课程#{user_course_count}".html_safe : "课程", + user_course_community_path(User.current), :id => "user_course_list", :target => "_blank" %> +
      • + <% if user_manage_homework_count > 0 %> +
    • + <%= link_to user_manage_homework_count > 0 ? "我发布的作业#{user_manage_homework_count}".html_safe : "我发布的作业", + user_manage_homeworks_user_path(@user), :target => "_blank" %> +
      • + <% end %> + <% if user_receive_homework_count > 0 %> +
    • + <%= link_to "我收到的作业#{user_receive_homework_count}".html_safe, + user_receive_homeworks_user_path(@user), :target => "_blank" %> +
      • + <% end %> +
    • + <%= link_to "题库", user_homeworks_user_path(User.current), :target => "_blank", :class => "fl", :style => "color:#666" %> +
      • +
    • + <%= link_to "资源库", user_resource_user_path(User.current, :type => 1), :target => "_blank", :class => "fl", :style => "color:#666" %> +
      • +
    + <%# end %> +
    + <% end %> + <% if user_project_count > 0%> +
    +

    + <%= link_to "项目社区", user_project_community_path(User.current), :class => "fl", :target => "_blank", :style => "color:#666" %> +

    +
      +
    • + <%= link_to user_project_count > 0 ? "项目#{user_project_count}".html_safe : "项目", + user_project_community_path(User.current), :id => 'user_project_list', :target => "_blank" %> +
      • + <% if issues_author_is_self_count > 0 %> +
    • + <%= link_to issues_author_is_self_count > 0 ? "我发布的issue#{issues_author_is_self_count}".html_safe : "我发布的issue", + user_manage_issues_user_path(@user), :target => "_blank" %> +
      • + <% end %> + <% if issues_assigned_is_self_count > 0 %> +
    • + <%= link_to issues_assigned_is_self_count > 0 ? "我收到的issue#{issues_assigned_is_self_count}".html_safe : "我收到的issue", + user_receive_issues_user_path(@user), :target => "_blank" %> +
      • + <% end %> +
    +
    + <% end %> + <% if hidden_unproject_infos && user_contest_count > 0 %> +
    +

    + <%= link_to "竞赛社区", user_contest_community_path(User.current), :class => "fl" , :target => "_blank"%> +

    +
      +
    • + <%= link_to user_contest_count > 0 ? "竞赛#{user_contest_count}".html_safe : "竞赛", + user_contest_community_path(User.current), :id => "user_contest_list", :target => "_blank" %> +
      • +
    + <%# end %> +
    + <% end %> + <% else %> +
    +

    Ta在确实 + <%= time_tag(@user.created_on).html_safe %> +

    +
      + <% if hidden_unproject_infos && user_course_count > 0 %> +
    • + <%= link_to user_course_count > 0 ? "课程#{user_course_count}".html_safe : "课程", + user_course_community_path(@user), :id => "user_course_list", :class => "fl", :target => "_blank" %> +
      • + <% end %> + <% if user_project_count > 0 %> +
    • + <%= link_to user_project_count > 0 ? "项目#{user_project_count}".html_safe : "项目", + user_project_community_path(@user), :id => 'user_project_list', :class => "fl", :target => "_blank" %> +
      • + <% end %> + <% if hidden_unproject_infos && user_contest_count > 0 %> +
    • + <%= link_to user_contest_count > 0 ? "竞赛#{user_contest_count}".html_safe : "竞赛", + user_contest_community_path(@user), :id => 'user_contest_list', :class => "fl", :target => "_blank" %> +
      • + <% end %> +
    +
    + <% end %> +
    +
      +
    • + <%= link_to "留言", feedback_path(@user, :host=> Setting.host_user)%> +
      • +
    +
    - <%# 更新访问数,刷新的时候更新访问次数 %> - <% update_visiti_count @user %> -
    -
      - <% unless @user.user_extensions.location.blank? %> -
    • - <%= @user.user_extensions.location %>-<%= @user.user_extensions.location_city %> -
      • - <% end %> -
    • <%= @user.created_on.strftime('%Y-%m-%d') %>开始使用
      • -
    • <%= @user.visits.to_i %>次访问（自2016年5月）
      • -
    + <%# 更新访问数,刷新的时候更新访问次数 %> + <% update_visiti_count @user %> +
    +
      + <% unless @user.user_extensions.location.blank? %> +
    • + <%= @user.user_extensions.location %>-<%= @user.user_extensions.location_city %> +
      • + <% end %> +
    • <%= @user.created_on.strftime('%Y-%m-%d') %>开始使用
      • +
    • <%= @user.visits.to_i %>次访问（自2016年5月）
      • +
    +
    -
    +<% end %>
    <%= yield %>
    diff --git a/app/views/repositories/shixun_show.html.erb b/app/views/repositories/shixun_show.html.erb index 1fa1b14f6..220ad4dd9 100644 --- a/app/views/repositories/shixun_show.html.erb +++ b/app/views/repositories/shixun_show.html.erb @@ -38,9 +38,9 @@ <% end %> <% memo = Memo.where(:id => 1232).first %> - <% unless memo.nil? %> - <%=Setting.host_name %>/forums/1/memos/1232" class="linkBlue2" target="_blank">如何提交代码 - <% end %> + <%# unless memo.nil? %> + + <%# end %>
    diff --git a/app/views/shixuns/_form.html.erb b/app/views/shixuns/_form.html.erb index e960f03e7..e851537a3 100644 --- a/app/views/shixuns/_form.html.erb +++ b/app/views/shixuns/_form.html.erb @@ -57,7 +57,12 @@ toolbarIcons : function() { // Or return editormd.toolbarModes[name]; // full, simple, mini // Using "||" set icons align right. - return ["bold", "italic", "|", "list-ul", "list-ol", "|", "image", "code", "code-block", "|", "table", "watch", "clear"] + return ["bold", "italic", "|", "list-ul", "list-ol", "|", "code", "code-block", "|", "testIcon", "testIcon1", '|', "image", "table", '|', "watch", "clear" ] + }, + + toolbarCustomIcons : { + testIcon : "
    ", + testIcon1 : "
    " }, //这个配置在simple.html中并没有，但是为了能够提交表单，使用这个配置可以让构造出来的HTML代码直接在第二个隐藏的textarea域中，方便post提交表单。 saveHTMLToTextarea : true, @@ -81,7 +86,11 @@ toolbarIcons : function() { // Or return editormd.toolbarModes[name]; // full, simple, mini // Using "||" set icons align right. - return ["bold", "italic", "|", "list-ul", "list-ol", "|", "image", "code", "code-block", "|", "table", "watch", "clear"] + return ["bold", "italic", "|", "list-ul", "list-ol", "|", "code", "code-block", "|", "testIcon", "testIcon1", '|', "image", "table", '|', "watch", "clear" ] + }, + toolbarCustomIcons : { + testIcon : "
    ", + testIcon1 : "
    " }, //这个配置在simple.html中并没有，但是为了能够提交表单，使用这个配置可以让构造出来的HTML代码直接在第二个隐藏的textarea域中，方便post提交表单。 saveHTMLToTextarea : true, @@ -119,4 +128,41 @@ $("#new_shixun").submit(); } } + + window.onload = function(){ + $("#shixun_introduction [type=\"latex\"]").bind("click", function(){ + shixun_editormd.cm.replaceSelection("```latex"); + shixun_editormd.cm.replaceSelection("\n"); + shixun_editormd.cm.replaceSelection("\n"); + shixun_editormd.cm.replaceSelection("```"); + var __Cursor = shixun_editormd.cm.getDoc().getCursor(); + shixun_editormd.cm.setCursor(__Cursor.line-1, 0); + }); + + $("#shixun_propaedeutics [type=\"latex\"]").bind("click", function(){ + shixun_propaedeutics.cm.replaceSelection("```latex"); + shixun_propaedeutics.cm.replaceSelection("\n"); + shixun_propaedeutics.cm.replaceSelection("\n"); + shixun_propaedeutics.cm.replaceSelection("```"); + var __Cursor = shixun_propaedeutics.cm.getDoc().getCursor(); + shixun_propaedeutics.cm.setCursor(__Cursor.line-1, 0); + }); + + $("#shixun_introduction [type=\"inline\"]").bind("click", function(){ + shixun_editormd.cm.replaceSelection("$$$$"); + var __Cursor = shixun_editormd.cm.getDoc().getCursor(); + shixun_editormd.cm.setCursor(__Cursor.line, __Cursor.ch-2); + shixun_editormd.cm.focus(); + }); + + $("#shixun_propaedeutics [type=\"inline\"]").bind("click", function(){ + shixun_propaedeutics.cm.replaceSelection("$$$$"); + var __Cursor = shixun_propaedeutics.cm.getDoc().getCursor(); + shixun_propaedeutics.cm.setCursor(__Cursor.line, __Cursor.ch-2); + shixun_propaedeutics.cm.focus(); + }); + $("[type=\"inline\"]").attr("title", "行内公式"); + $("[type=\"latex\"]").attr("title", "多行公式"); + + } \ No newline at end of file diff --git a/app/views/shixuns/_settings_edit.html.erb b/app/views/shixuns/_settings_edit.html.erb index d12907da4..56f47caf4 100644 --- a/app/views/shixuns/_settings_edit.html.erb +++ b/app/views/shixuns/_settings_edit.html.erb @@ -64,7 +64,11 @@ toolbarIcons : function() { // Or return editormd.toolbarModes[name]; // full, simple, mini // Using "||" set icons align right. - return ["bold", "italic", "|", "list-ul", "list-ol", "|", "image", "code", "code-block", "|", "table", "watch", "clear"] + return ["bold", "italic", "|", "list-ul", "list-ol", "|", "code", "code-block", "|", "testIcon", "testIcon1", '|', "image", "table", '|', "watch", "clear" ] + }, + toolbarCustomIcons : { + testIcon : "
    ", + testIcon1 : "
    " }, //这个配置在simple.html中并没有，但是为了能够提交表单，使用这个配置可以让构造出来的HTML代码直接在第二个隐藏的textarea域中，方便post提交表单。 saveHTMLToTextarea : true, @@ -87,7 +91,11 @@ toolbarIcons : function() { // Or return editormd.toolbarModes[name]; // full, simple, mini // Using "||" set icons align right. - return ["bold", "italic", "|", "list-ul", "list-ol", "|", "image", "code", "code-block", "|", "table", "watch", "clear"] + return ["bold", "italic", "|", "list-ul", "list-ol", "|", "code", "code-block", "|", "testIcon", "testIcon1", '|', "image", "table", '|', "watch", "clear" ] + }, + toolbarCustomIcons : { + testIcon : "
    ", + testIcon1 : "
    " }, //这个配置在simple.html中并没有，但是为了能够提交表单，使用这个配置可以让构造出来的HTML代码直接在第二个隐藏的textarea域中，方便post提交表单。 saveHTMLToTextarea : true, @@ -99,4 +107,41 @@ imageFormats : ["jpg", "jpeg", "gif", "png", "bmp", "webp", "JPG", "JPEG", "GIF", "PNG", "BMP", "WEBP"], imageUploadURL : "<%= upload_with_markdown_path(:container_id => @shixun.id, :container_type => @shixun.class) %>" //url }); + + window.onload = function(){ + $("#setting_introduction [type=\"latex\"]").bind("click", function(){ + setting_editormd.cm.replaceSelection("```latex"); + setting_editormd.cm.replaceSelection("\n"); + setting_editormd.cm.replaceSelection("\n"); + setting_editormd.cm.replaceSelection("```"); + var __Cursor = setting_editormd.cm.getDoc().getCursor(); + setting_editormd.cm.setCursor(__Cursor.line-1, 0); + }); + + $("#setting_propaedeutics [type=\"latex\"]").bind("click", function(){ + p_editormd.cm.replaceSelection("```latex"); + p_editormd.cm.replaceSelection("\n"); + p_editormd.cm.replaceSelection("\n"); + p_editormd.cm.replaceSelection("```"); + var __Cursor = p_editormd.cm.getDoc().getCursor(); + p_editormd.cm.setCursor(__Cursor.line-1, 0); + }); + + $("#setting_introduction [type=\"inline\"]").bind("click", function(){ + setting_editormd.cm.replaceSelection("$$$$"); + var __Cursor = setting_editormd.cm.getDoc().getCursor(); + setting_editormd.cm.setCursor(__Cursor.line, __Cursor.ch-2); + setting_editormd.cm.focus(); + }); + + $("#setting_propaedeutics [type=\"inline\"]").bind("click", function(){ + p_editormd.cm.replaceSelection("$$$$"); + var __Cursor = p_editormd.cm.getDoc().getCursor(); + p_editormd.cm.setCursor(__Cursor.line, __Cursor.ch-2); + p_editormd.cm.focus(); + }); + $("[type=\"inline\"]").attr("title", "行内公式"); + $("[type=\"latex\"]").attr("title", "多行公式"); + + } diff --git a/app/views/shixuns/_shixun_list.html.erb b/app/views/shixuns/_shixun_list.html.erb index 07426e41c..ff3fa32de 100644 --- a/app/views/shixuns/_shixun_list.html.erb +++ b/app/views/shixuns/_shixun_list.html.erb @@ -4,14 +4,14 @@
    <% else %> <% @shixuns.each do |shixun| %> -
    -
    +
    +

    - <%= link_to shixun.name, shixun_path(shixun), :target => "_blank" %> + <%= link_to shixun.name, "javascrip:void(0);" %>

    - <%= link_to image_tag(url_to_avatar(shixun.owner), :width =>"60", :height => "60", :class => "panel-warp-img mr10 fl", :alt=>"头像"), user_path(shixun.owner), :target => "_blank" %> - <%= link_to shixun.owner.try(:show_name), user_path(shixun.owner), :class => "task-index-name task-hide fl", :target => "_blank" %> + <%= link_to image_tag(url_to_avatar(shixun.owner), :width =>"60", :height => "60", :class => "panel-warp-img mr10 fl", :alt=>"头像"), "javascrip:void(0);" %> + <%= link_to shixun.owner.try(:show_name), "javascrip:void(0);" , :class => "task-index-name task-hide fl", :target => "_blank" %>
    <%= shixun.language == "JDBC" ? "Java/SQL" : shixun.language %> @@ -33,4 +33,9 @@
    <% end %> - + diff --git a/app/views/shixuns/new.html.erb b/app/views/shixuns/new.html.erb index 0517123f2..599c909d6 100644 --- a/app/views/shixuns/new.html.erb +++ b/app/views/shixuns/new.html.erb @@ -1,6 +1,8 @@ <%= stylesheet_link_tag '/editormd/css/editormd','/editormd/css/editormd.min.css' %> <%= javascript_include_tag '/editormd/editormd.min.js' %> - +
    + +

    <%= User.current.show_name %> > 项目实训 > 新建实训 diff --git a/app/views/shixuns/search.js.erb b/app/views/shixuns/search.js.erb index 2d9ed58bc..96bf2c9ef 100644 --- a/app/views/shixuns/search.js.erb +++ b/app/views/shixuns/search.js.erb @@ -7,4 +7,4 @@ $("#shixuns_index_status_2").attr('href','<%= search_shixuns_path(:status => 2, $("#shixuns_index_status_3").attr('href','<%= search_shixuns_path(:status => 3, :language => @language, :search => @search, :order => @order) %>'); $("#shixuns_index_status_4").attr('href','<%= search_shixuns_path(:status => 4, :language => @language, :search => @search, :order => @order) %>'); $("#shixuns_index_status_5").attr('href','<%= search_shixuns_path(:status => 5, :language => @language, :search => @search, :order => @order) %>'); -$("#add_collaborators_form").attr('action','<%= search_shixuns_path(:status => @status, :language => @language, :search => @search, :order => @order) %>'); +$("#add_collaborators_form").attr('action','<%= search_shixuns_path(:status => @status, :language => @language, :order => @order) %>'); diff --git a/app/views/syllabuses/_courses_list.html.erb b/app/views/syllabuses/_courses_list.html.erb index 44cd7858d..77d74d500 100644 --- a/app/views/syllabuses/_courses_list.html.erb +++ b/app/views/syllabuses/_courses_list.html.erb @@ -1,15 +1,14 @@ <% if !courses.blank? %> <% courses.each_with_index do |course, i| %> <% allow_visit = course.is_delete == 0 && (User.current.member_of_course?(course) || User.current.admin? || course.is_public == 1) %> -

  • - - " onclick="<%= allow_visit ? '' : 'notice_sure_box(\'你不是该私有班级的成员，不能访问\')' %>" class="fl mr5" target="<%= allow_visit ? '_blank' : "" %>"><%= course.name %> - <% if course.is_public == 0 %> - - <% end %> - - <%= course.teacher.show_name %> - <%= format_date Time.at(course.updatetime) %>更新 +
  • +
    + " onclick="<%= allow_visit ? '' : 'notice_sure_box(\'你不是该私有班级的成员，不能访问\')' %>" class="edu-class-inner-list fl ml30 font-14 color-grey"><%= course.name %> + <% if course.is_public == 0 %> + + <% end %> + <%= format_date Time.at(course.updatetime) %> 更新 +
    • <% end %> -<% end %> +<% end %> \ No newline at end of file diff --git a/app/views/syllabuses/_join_syllabuses.html.erb b/app/views/syllabuses/_join_syllabuses.html.erb index 103f366fc..40f557ca0 100644 --- a/app/views/syllabuses/_join_syllabuses.html.erb +++ b/app/views/syllabuses/_join_syllabuses.html.erb @@ -1,43 +1,52 @@ <% if @join_syllabuses.count > 0 %> - <% @join_syllabuses.each_with_index do |syllabus, index|%> - <% course_count = @status == 1 ? syllabus.courses.where("is_delete = 0 and is_end = 0").count : syllabus.courses.where("is_delete = 0 and is_end = 1").count %> - <% if !(@status == 2 && course_count == 0) %> -
    -
    - - - - - - <%= syllabus.title %> - <% if course_count > 0 %> - <%= course_count %> - <% end %> - - <%= syllabus.user.show_name %> - <%=format_date syllabus.updated_at %>更新 - -
    - -
    + <% end %> <% end %> -<% end %> <% else %> -<%= render :partial => 'welcome/no_data' %> -<% end %> \ No newline at end of file + <%= render :partial => 'welcome/no_data' %> +<% end %> diff --git a/app/views/syllabuses/_my_syllabuses.html.erb b/app/views/syllabuses/_my_syllabuses.html.erb index 972f44dbe..004609fa3 100644 --- a/app/views/syllabuses/_my_syllabuses.html.erb +++ b/app/views/syllabuses/_my_syllabuses.html.erb @@ -1,43 +1,52 @@ <% if @my_syllabuses.count > 0 %> -<% @my_syllabuses.each_with_index do |syllabus, index|%> - <% course_count = @status == 1 ? syllabus.courses.where("is_delete = 0 and is_end = 0").count : syllabus.courses.where("is_delete = 0 and is_end = 1").count %> - <% if !(@status == 2 && course_count == 0) %> -
    -
    - - - - - - <%= syllabus.title %> - <% if course_count > 0 %> - <%= course_count %> - <% end %> - - <%= syllabus.user.show_name %> - <%=format_date syllabus.updated_at %>更新 - -
    - -
    + <% end %> <% end %> -<% end %> <% else %> <%= render :partial => 'welcome/no_data' %> <% end %> \ No newline at end of file diff --git a/app/views/syllabuses/index.html.erb b/app/views/syllabuses/index.html.erb index 174371057..d66b9ed38 100644 --- a/app/views/syllabuses/index.html.erb +++ b/app/views/syllabuses/index.html.erb @@ -1,98 +1,64 @@ -
    -

    - - - <%= User.current.show_name %> > - 智能课堂> - 我的课堂 - - -

    +
    +

    胡莎莎 > 项目实训 > 我的实训

    +
    +
    +
    + +
    -
    -
    -

    - 我的发布<%= @my_syllabuses.count %> - -

    -

    - 我的参与<%= @join_syllabuses.count %> - -

    -
    -

    - 正在进行 - 已结束 -

    -
    -
    - <%= render :partial => "syllabuses/my_syllabuses" %> -
    -
    - <%= render :partial => "syllabuses/join_syllabuses" %> +
    +
    +

    + 正在进行 + 已结束 +

    +
    + <%= render :partial => "syllabuses/my_syllabuses" %> +
    +
    +
    + +
    +

    + 正在进行 + 已结束 +

    +
    +
    + <%= render :partial => "syllabuses/join_syllabuses" %> +
    +
    +
    +
    diff --git a/app/views/syllabuses/index.js.erb b/app/views/syllabuses/index.js.erb index a07fc7369..0539df6fa 100644 --- a/app/views/syllabuses/index.js.erb +++ b/app/views/syllabuses/index.js.erb @@ -1,36 +1,5 @@ -$("#my_syllabuses").html("<%= j( render :partial => "syllabuses/my_syllabuses") %>"); -$("#join_syllabuses").html("<%= j( render :partial => "syllabuses/join_syllabuses") %>"); -$(".play .nav p").click(function () { - var $a = $(this).attr("data-option"); - $(".play .nav p i").hide(); - $(".play .nav p").removeClass("bold"); - $(this).addClass("bold"); - $(this).find("i").show(); - $(".con").children().hide(); - $(".con").find("." + $a + "").show(); -}); -$(".con .count").click(function () { - if ($(this).find(".cut").css("display") == "none") { - $(this).find(".cut").show(); - $(this).find(".add").hide(); - $(this).parent().next().show(); - } else { - $(this).find(".cut").hide(); - $(this).find(".add").show(); - $(this).parent().next().hide(); - } -}); -$(".con .operate").click(function () { - if ($(this).parent().next().css("display") == "none") { - $(".con .handle").hide(); - $(this).parent().next().show(); - } else { - $(this).parent().next().hide(); - } -}); -$(document).bind("click", function (e) { - var target = $(e.target); - if (target.closest(".con .handle").length == 0 && target.closest(".con .operate").length == 0) { - $(".con .handle").hide(); - } -}); +<% if params[:tab].to_i == 1 %> + $("#my_syllabuses").html("<%= j( render :partial => "syllabuses/my_syllabuses") %>"); +<% elsif params[:tab].to_i == 2 %> + $("#join_syllabuses").html("<%= j( render :partial => "syllabuses/join_syllabuses") %>"); +<% end %> diff --git a/app/views/users/_edu_user_watch_fan_list.html.erb b/app/views/users/_edu_user_watch_fan_list.html.erb index 9249dd3af..1fa49861a 100644 --- a/app/views/users/_edu_user_watch_fan_list.html.erb +++ b/app/views/users/_edu_user_watch_fan_list.html.erb @@ -4,12 +4,12 @@ <%= str %>的关注 <%= @user_watchlist_count %> - + <%= str %>的粉丝 <%= @user_fanlist_count %> - +

    diff --git a/app/views/users/_message_replies.html.erb b/app/views/users/_message_replies.html.erb index 78f05a40e..56a962e1b 100644 --- a/app/views/users/_message_replies.html.erb +++ b/app/views/users/_message_replies.html.erb @@ -6,11 +6,11 @@ autoUrl('reply_content_<%= comment.id %>'); }); -
  • +
  • <%= link_to image_tag(url_to_avatar(comment.creator_user), :width => 33, :height => 33, :alt => "用户头像"), user_url_in_org(comment.creator_user) %>
    -
    +
    <%= render :partial => 'users/message_contents', :locals => {:comment => comment, :type => type, :user_activity_id => user_activity_id}%> <% if !comment.content_detail.blank? %> diff --git a/app/views/users/_my_homepage_courses_list.html.erb b/app/views/users/_my_homepage_courses_list.html.erb new file mode 100644 index 000000000..baa69db2a --- /dev/null +++ b/app/views/users/_my_homepage_courses_list.html.erb @@ -0,0 +1,20 @@ +<% @courses.each do |course| %> +

    + <%= course.name %> + <%= course.syllabus.title %> + <%= format_time course.updatetime %> + +

    +<% end %> +<%# if @courses_count > 8 %> + +<%# end %> +
    +
    +
    +
      + <%= pagination_links_full @courses_pages, @courses_count, :per_page_links => false, :remote => @is_remote, :flag => true, :is_new => true %> +
    +
    +
    +
    \ No newline at end of file diff --git a/app/views/users/_my_homepage_shixuns_list.html.erb b/app/views/users/_my_homepage_shixuns_list.html.erb new file mode 100644 index 000000000..63c7c244a --- /dev/null +++ b/app/views/users/_my_homepage_shixuns_list.html.erb @@ -0,0 +1,18 @@ +<% @shixuns.each do |shixun| %> +

    + <%= shixun.name %> + 已解锁第<%= had_passed_changllenge_count(shixun) %>关/共<%= shixun.challenges.count %>关 + <%= format_time shixun.created_at %> + +

    +<% end %> + +
    +
    +
    +
      + <%= pagination_links_full @shixuns_pages, @shixuns_count, :per_page_links => false, :remote => @is_remote, :flag => true, :is_new => true %> +
    +
    +
    +
    \ No newline at end of file diff --git a/app/views/users/_user_journal_post_reply.html.erb b/app/views/users/_user_journal_post_reply.html.erb index 07bfc9ad1..3484d75a8 100644 --- a/app/views/users/_user_journal_post_reply.html.erb +++ b/app/views/users/_user_journal_post_reply.html.erb @@ -1,7 +1,7 @@ <% all_replies = JournalsForMessage.where("root_id = #{activity.id}").reorder("created_on desc") %> <% count = all_replies.count %> <% no_children_comments = get_no_children_comments all_replies %> -<%= render :partial => 'users/reply_banner', :locals => {:count => count, :activity => activity, :user_activity_id => user_activity_id, :expand_more =>no_children_comments[:three_more]} %> +<%= render :partial => 'users/wide_reply_banner', :locals => {:count => count, :activity => activity, :user_activity_id => user_activity_id, :expand_more =>no_children_comments[:three_more]} %> <% if count > 0 %>
    @@ -9,9 +9,9 @@
    <% end %> -
    +
    <%= link_to image_tag(url_to_avatar(User.current), :width => "33", :height => "33"), :alt => "用户头像" %>
    -
    +
    <% if User.current.logged? %>
    <%= form_for('new_form',:url => {:controller => 'words', :action => 'create_reply', :id => activity.id},:method => "post", :remote => true) do |f|%> diff --git a/app/views/users/_user_journalsformessage.html.erb b/app/views/users/_user_journalsformessage.html.erb index e200a275d..a00601f81 100644 --- a/app/views/users/_user_journalsformessage.html.erb +++ b/app/views/users/_user_journalsformessage.html.erb @@ -1,10 +1,10 @@ -
    -
    +
    +
    <%= link_to image_tag(url_to_avatar(activity.user), :width => "50", :height => "50"), user_path(activity.user), :alt => "用户头像" %> <%= render :partial => 'users/show_detail_info', :locals => {:user => activity.user} %>
    -
    +
    <%= link_to activity.user.show_name, user_path(activity.user), :class => "newsBlue mr15" %> TO @@ -30,7 +30,7 @@ <% else %> <% content = activity.notes %> <% end %> - <%=render :partial =>"users/intro_content", :locals=>{:user_activity_id =>user_activity_id, :content=>content} %> + <%= render :partial =>"users/intro_content", :locals=>{:user_activity_id =>user_activity_id, :content=>content} %>
    @@ -63,7 +63,7 @@
    -
    +
    <%=render :partial => 'users/user_journal_post_reply', :locals => {:activity => activity, :user_activity_id => user_activity_id} %>
    diff --git a/app/views/users/_wide_reply_banner.html.erb b/app/views/users/_wide_reply_banner.html.erb new file mode 100644 index 000000000..6cf13e118 --- /dev/null +++ b/app/views/users/_wide_reply_banner.html.erb @@ -0,0 +1,32 @@ +
    +
    + 回复 + ︿ + <%= count>0 ? "（#{count}）" : "" %>▪ + + <%=render :partial=> "praise_tread/praise", :locals => {:activity=>activity, :user_activity_id=>user_activity_id,:type=>"activity"}%> + +
    +
    <%#= format_date(activity.updated_on) %>
    + <%if expand_more %> +
    + <% if activity.class.to_s == 'HomeworkCommon' || activity.class.to_s == 'Work' %> + + 展开更多 + + <% elsif activity.class.to_s == 'Message' %> + + 展开更多 + + <% elsif activity.class.to_s == 'BlogComment' %> + + 展开更多 + + <% else %> + + 展开更多 + + <% end %> +
    + <% end %> +
    \ No newline at end of file diff --git a/app/views/users/show.html.erb b/app/views/users/show.html.erb index f58a167d8..826e0b408 100644 --- a/app/views/users/show.html.erb +++ b/app/views/users/show.html.erb @@ -194,41 +194,20 @@

    <% str = current_user ? '' : 'TA的' %> <% if @courses_count == 0 %> - 实训<%= @shixuns_count %> + 实训<%= @shixuns_count %> <% elsif @shixuns_count == 0 %> - 课堂<%= @courses_count %> + 课堂<%= @courses_count %> <% else %> - 课堂<%= @courses_count %> - 实训<%= @shixuns_count %> + 课堂<%= @courses_count %> + 实训<%= @shixuns_count %> <% end %>

    - <% @courses.limit(8).each do |course| %> -

    - <%= course.name %> - <%= course.syllabus.title %> - <%= format_time course.updatetime %> - -

    - <% end %> - <% if @courses_count > 8 %> - 点击查看全部 - <% end %> + <%= render :partial => "my_homepage_courses_list" %>
    -
    - <% @shixuns.limit(8).each do |shixun| %> -

    - <%= shixun.name %> - 已解锁第<%= had_passed_changllenge_count(shixun) %>关/共<%= shixun.challenges.count %>关 - <%= format_time shixun.created_at %> - -

    - <% end %> - <% if @shixuns_count > 8 %> - 点击查看全部 - <% end %> + <%#= render :partial => "my_homepage_shixuns_list" %>
    <% end %> diff --git a/app/views/users/show.js.erb b/app/views/users/show.js.erb index 20e515859..bee4ccdfc 100644 --- a/app/views/users/show.js.erb +++ b/app/views/users/show.js.erb @@ -1,5 +1,8 @@ -<% if is_current_user %> - $("#user_homepage_message_list").html("<%= escape_javascript( render :partial => 'users/user_message_list') %>"); -<% else %> - $("#show_more_activities").replaceWith("<%= escape_javascript( render :partial => 'users/user_activities',:locals => {:user_activities => @user_activities, :page => @page,:type => @type, :user_id => (@user.type == "AnonymousUser" ? User.current.id : @user.id), :action => "user_activities"} )%>"); -<% end %> +<%# if is_current_user %> + // $("#user_homepage_message_list").html("<%#= escape_javascript( render :partial => 'users/user_message_list') %>"); +<%# else %> + // $("#show_more_activities").replaceWith("<%#= escape_javascript( render :partial => 'users/user_activities',:locals => {:user_activities => @user_activities, :page => @page,:type => @type, :user_id => (@user.type == "AnonymousUser" ? User.current.id : @user.id), :action => "user_activities"} )%>"); +<%# end %> +$("#my_courses_list").html ("<%= j (render :partial => 'users/my_homepage_courses_list') %>"); +$("#my_shixuns_list").html ("<%= j (render :partial => 'users/my_homepage_shixuns_list') %>"); + diff --git a/app/views/users/user_newfeedback.html.erb b/app/views/users/user_newfeedback.html.erb index f5f6bf382..77433df02 100644 --- a/app/views/users/user_newfeedback.html.erb +++ b/app/views/users/user_newfeedback.html.erb @@ -1,5 +1,5 @@
    -
    +
    留言
    • @@ -13,7 +13,7 @@
    -
    +
    <% unless is_current_user %>
    <%= link_to image_tag(url_to_avatar(User.current),:class=>"fl mr10", :width => "50", :height => "50"), :alt => "用户头像" %>
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\ No newline at end of file diff --git a/public/images/edu_user/richEditer.png b/public/images/edu_user/richEditer.png new file mode 100644 index 000000000..22ac4d836 Binary files /dev/null and b/public/images/edu_user/richEditer.png differ diff --git a/public/javascripts/application.js b/public/javascripts/application.js index 320f8626b..de92bd57f 100644 --- a/public/javascripts/application.js +++ b/public/javascripts/application.js @@ -1812,7 +1812,6 @@ function pop_box_new2(value, Width, Height){ }); $("#popupWrap input, #popupWrap textarea, #popupWrap ul, #popupWrap a").mousedown(function(event){ event.stopPropagation(); - new Drag("popupWrap"); }); } diff --git a/public/javascripts/edu/user.js b/public/javascripts/edu/user.js index bfb75cf78..e6bd21179 100644 --- a/public/javascripts/edu/user.js +++ b/public/javascripts/edu/user.js @@ -29,6 +29,10 @@ $(function(){ /*---------------------- 课堂tab点击事件 -------------------------*/ nTabCourse.live('click', function(){ + $.ajax({ + url: '/users/' + $("#current_user_id").val(), + async: false + }) var nParent = nTabCourse.parent(); nParent.find(".bold").removeClass("bold"); nParent.find("i").hide(); @@ -40,6 +44,10 @@ $(function(){ /*---------------------- 实训tab点击事件 -------------------------*/ nTabShixun.live('click', function(){ + $.ajax({ + url: '/users/' + $("#current_user_id").val(), + async: false + }) var nParent = nTabShixun.parent(); nParent.find(".bold").removeClass("bold"); nParent.find("i").hide(); diff --git a/public/katex/README.md b/public/katex/README.md new file mode 100644 index 000000000..84435333e --- /dev/null +++ b/public/katex/README.md @@ -0,0 +1,68 @@ +# [KaTeX](https://khan.github.io/KaTeX/) [![Build Status](https://travis-ci.org/Khan/KaTeX.svg?branch=master)](https://travis-ci.org/Khan/KaTeX) + +[![Join the chat at https://gitter.im/Khan/KaTeX](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/Khan/KaTeX?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge) + +KaTeX is a fast, easy-to-use JavaScript library for TeX math rendering on the web. + + * **Fast:** KaTeX renders its math synchronously and doesn't need to reflow the page. See how it compares to a competitor in [this speed test](http://jsperf.com/katex-vs-mathjax/). + * **Print quality:** KaTeX’s layout is based on Donald Knuth’s TeX, the gold standard for math typesetting. + * **Self contained:** KaTeX has no dependencies and can easily be bundled with your website resources. + * **Server side rendering:** KaTeX produces the same output regardless of browser or environment, so you can pre-render expressions using Node.js and send them as plain HTML. + +KaTeX supports all major browsers, including Chrome, Safari, Firefox, Opera, and IE 8 - IE 11. A list of supported commands can be on the [wiki](https://github.com/Khan/KaTeX/wiki/Function-Support-in-KaTeX). + +## Usage + +You can [download KaTeX](https://github.com/khan/katex/releases) and host it on your server or include the `katex.min.js` and `katex.min.css` files on your page directly from a CDN: + +```html + + +``` + +#### In-browser rendering + +Call `katex.render` with a TeX expression and a DOM element to render into: + +```js +katex.render("c = \\pm\\sqrt{a^2 + b^2}", element); +``` + +If KaTeX can't parse the expression, it throws a `katex.ParseError` error. + +#### Server side rendering or rendering to a string + +To generate HTML on the server or to generate an HTML string of the rendered math, you can use `katex.renderToString`: + +```js +var html = katex.renderToString("c = \\pm\\sqrt{a^2 + b^2}"); +// '...' +``` + +Make sure to include the CSS and font files, but there is no need to include the JavaScript. Like `render`, `renderToString` throws if it can't parse the expression. + +#### Rendering options + +You can provide an object of options as the last argument to `katex.render` and `katex.renderToString`. Available options are: + +- `displayMode`: `boolean`. If `true` the math will be rendered in display mode, which will put the math in display style (so `\int` and `\sum` are large, for example), and will center the math on the page on its own line. If `false` the math will be rendered in inline mode. (default: `false`) +- `throwOnError`: `boolean`. If `true`, KaTeX will throw a `ParseError` when it encounters an unsupported command. If `false`, KaTeX will render the unsupported command as text in the color given by `errorColor`. (default: `true`) +- `errorColor`: `string`. A color string given in the format `"#XXX"` or `"#XXXXXX"`. This option determines the color which unsupported commands are rendered in. (default: `#cc0000`) + +For example: + +```js +katex.render("c = \\pm\\sqrt{a^2 + b^2}", element, { displayMode: true }); +``` + +#### Automatic rendering of math on a page + +Math on the page can be automatically rendered using the auto-render extension. See [the Auto-render README](contrib/auto-render/README.md) for more information. + +## Contributing + +See [CONTRIBUTING.md](CONTRIBUTING.md) + +## License + +KaTeX is licensed under the [MIT License](http://opensource.org/licenses/MIT). diff --git a/public/katex/contrib/auto-render.min.js b/public/katex/contrib/auto-render.min.js new file mode 100644 index 000000000..30cc31214 --- /dev/null +++ b/public/katex/contrib/auto-render.min.js @@ -0,0 +1 @@ +(function(e){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=e()}else if(typeof define==="function"&&define.amd){define([],e)}else{var t;if(typeof window!=="undefined"){t=window}else if(typeof global!=="undefined"){t=global}else if(typeof self!=="undefined"){t=self}else{t=this}t.renderMathInElement=e()}})(function(){var e,t,r;return function n(e,t,r){function a(o,l){if(!t[o]){if(!e[o]){var f=typeof require=="function"&&require;if(!l&&f)return f(o,!0);if(i)return i(o,!0);var d=new Error("Cannot find module '"+o+"'");throw d.code="MODULE_NOT_FOUND",d}var s=t[o]={exports:{}};e[o][0].call(s.exports,function(t){var r=e[o][1][t];return a(r?r:t)},s,s.exports,n,e,t,r)}return t[o].exports}var i=typeof require=="function"&&require;for(var o=0;o .katex { + display: inline-block; + text-align: initial; +} +.katex { + font: normal 1.21em KaTeX_Main, Times New Roman, serif; + line-height: 1.2; + white-space: nowrap; + text-indent: 0; +} +.katex .katex-html { + display: inline-block; +} +.katex .katex-mathml { + position: absolute; + clip: rect(1px, 1px, 1px, 1px); + padding: 0; + border: 0; + height: 1px; + width: 1px; + overflow: hidden; +} +.katex .base { + display: inline-block; +} +.katex .strut { + display: inline-block; +} +.katex .mathrm { + font-style: normal; +} +.katex .textit { + font-style: italic; +} +.katex .mathit { + font-family: KaTeX_Math; + font-style: italic; +} +.katex .mathbf { + font-family: KaTeX_Main; + font-weight: bold; +} +.katex .amsrm { + font-family: KaTeX_AMS; +} +.katex .mathbb { + font-family: KaTeX_AMS; +} +.katex .mathcal { + font-family: KaTeX_Caligraphic; +} +.katex .mathfrak { + font-family: KaTeX_Fraktur; +} +.katex .mathtt { + font-family: KaTeX_Typewriter; +} +.katex .mathscr { + font-family: KaTeX_Script; +} +.katex .mathsf { + font-family: KaTeX_SansSerif; +} +.katex .mainit { + font-family: KaTeX_Main; + font-style: italic; +} +.katex .mord + .mop { + margin-left: 0.16667em; +} +.katex .mord + .mbin { + margin-left: 0.22222em; +} +.katex .mord + .mrel { + margin-left: 0.27778em; +} +.katex .mord + .minner { + margin-left: 0.16667em; +} +.katex .mop + .mord { + margin-left: 0.16667em; +} +.katex .mop + .mop { + margin-left: 0.16667em; +} +.katex .mop + .mrel { + margin-left: 0.27778em; +} +.katex .mop + .minner { + margin-left: 0.16667em; +} +.katex .mbin + .mord { + margin-left: 0.22222em; +} +.katex .mbin + .mop { + margin-left: 0.22222em; +} +.katex .mbin + .mopen { + margin-left: 0.22222em; +} +.katex .mbin + .minner { + margin-left: 0.22222em; +} +.katex .mrel + .mord { + margin-left: 0.27778em; +} +.katex .mrel + .mop { + margin-left: 0.27778em; +} +.katex .mrel + .mopen { + margin-left: 0.27778em; +} +.katex .mrel + .minner { + margin-left: 0.27778em; +} +.katex .mclose + .mop { + margin-left: 0.16667em; +} +.katex .mclose + .mbin { + margin-left: 0.22222em; +} +.katex .mclose + .mrel { + margin-left: 0.27778em; +} +.katex .mclose + .minner { + margin-left: 0.16667em; +} +.katex .mpunct + .mord { + margin-left: 0.16667em; +} +.katex .mpunct + .mop { + margin-left: 0.16667em; +} +.katex .mpunct + .mrel { + margin-left: 0.16667em; +} +.katex .mpunct + .mopen { + margin-left: 0.16667em; +} +.katex .mpunct + .mclose { + margin-left: 0.16667em; +} +.katex .mpunct + .mpunct { + margin-left: 0.16667em; +} +.katex .mpunct + .minner { + margin-left: 0.16667em; +} +.katex .minner + .mord { + margin-left: 0.16667em; +} +.katex .minner + .mop { + margin-left: 0.16667em; +} +.katex .minner + .mbin { + margin-left: 0.22222em; +} +.katex .minner + .mrel { + margin-left: 0.27778em; +} +.katex .minner + .mopen { + margin-left: 0.16667em; +} +.katex .minner + .mpunct { + margin-left: 0.16667em; +} +.katex .minner + .minner { + margin-left: 0.16667em; +} +.katex .mord.mtight { + margin-left: 0; +} +.katex .mop.mtight { + margin-left: 0; +} +.katex .mbin.mtight { + margin-left: 0; +} +.katex .mrel.mtight { + margin-left: 0; +} +.katex .mopen.mtight { + margin-left: 0; +} +.katex .mclose.mtight { + margin-left: 0; +} +.katex .mpunct.mtight { + margin-left: 0; +} +.katex .minner.mtight { + margin-left: 0; +} +.katex .mord + .mop.mtight { + margin-left: 0.16667em; +} +.katex .mop + .mord.mtight { + margin-left: 0.16667em; +} +.katex .mop + .mop.mtight { + margin-left: 0.16667em; +} +.katex .mclose + .mop.mtight { + margin-left: 0.16667em; +} +.katex .minner + .mop.mtight { + margin-left: 0.16667em; +} +.katex .reset-textstyle.textstyle { + font-size: 1em; +} +.katex .reset-textstyle.scriptstyle { + font-size: 0.7em; +} +.katex .reset-textstyle.scriptscriptstyle { + font-size: 0.5em; +} +.katex .reset-scriptstyle.textstyle { + font-size: 1.42857em; +} +.katex .reset-scriptstyle.scriptstyle { + font-size: 1em; +} +.katex .reset-scriptstyle.scriptscriptstyle { + font-size: 0.71429em; +} +.katex .reset-scriptscriptstyle.textstyle { + font-size: 2em; +} +.katex .reset-scriptscriptstyle.scriptstyle { + font-size: 1.4em; +} +.katex .reset-scriptscriptstyle.scriptscriptstyle { + font-size: 1em; +} +.katex .style-wrap { + position: relative; +} +.katex .vlist { + display: inline-block; +} +.katex .vlist > span { + display: block; + height: 0; + position: relative; +} +.katex .vlist > span > span { + display: inline-block; +} +.katex .vlist .baseline-fix { + display: inline-table; + table-layout: fixed; +} +.katex .msupsub { + text-align: left; +} +.katex .mfrac > span > span { + text-align: center; +} +.katex .mfrac .frac-line { + width: 100%; +} +.katex .mfrac .frac-line:before { + border-bottom-style: solid; + border-bottom-width: 1px; + content: ""; + display: block; +} +.katex .mfrac .frac-line:after { + border-bottom-style: solid; + border-bottom-width: 0.04em; + content: ""; + display: block; + margin-top: -1px; +} +.katex .mspace { + display: inline-block; +} +.katex .mspace.negativethinspace { + margin-left: -0.16667em; +} +.katex .mspace.thinspace { + width: 0.16667em; +} +.katex .mspace.negativemediumspace { + margin-left: -0.22222em; 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+ border: solid 0; + position: relative; +} +.katex .overline .overline-line, +.katex .underline .underline-line { + width: 100%; +} +.katex .overline .overline-line:before, +.katex .underline .underline-line:before { + border-bottom-style: solid; + border-bottom-width: 1px; + content: ""; + display: block; +} +.katex .overline .overline-line:after, +.katex .underline .underline-line:after { + border-bottom-style: solid; + border-bottom-width: 0.04em; + content: ""; + display: block; + margin-top: -1px; +} +.katex .sqrt > .sqrt-sign { + position: relative; +} +.katex .sqrt .sqrt-line { + width: 100%; +} +.katex .sqrt .sqrt-line:before { + border-bottom-style: solid; + border-bottom-width: 1px; + content: ""; + display: block; +} +.katex .sqrt .sqrt-line:after { + border-bottom-style: solid; + border-bottom-width: 0.04em; + content: ""; + display: block; + margin-top: -1px; +} +.katex .sqrt > .root { + margin-left: 0.27777778em; + margin-right: -0.55555556em; +} +.katex .sizing, +.katex .fontsize-ensurer { + display: inline-block; 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+} +.katex .sizing.reset-size9.size1, +.katex .fontsize-ensurer.reset-size9.size1 { + font-size: 0.24154589em; +} +.katex .sizing.reset-size9.size2, +.katex .fontsize-ensurer.reset-size9.size2 { + font-size: 0.33816425em; +} +.katex .sizing.reset-size9.size3, +.katex .fontsize-ensurer.reset-size9.size3 { + font-size: 0.38647343em; +} +.katex .sizing.reset-size9.size4, +.katex .fontsize-ensurer.reset-size9.size4 { + font-size: 0.43478261em; +} +.katex .sizing.reset-size9.size5, +.katex .fontsize-ensurer.reset-size9.size5 { + font-size: 0.48309179em; +} +.katex .sizing.reset-size9.size6, +.katex .fontsize-ensurer.reset-size9.size6 { + font-size: 0.57971014em; +} +.katex .sizing.reset-size9.size7, +.katex .fontsize-ensurer.reset-size9.size7 { + font-size: 0.69565217em; +} +.katex .sizing.reset-size9.size8, +.katex .fontsize-ensurer.reset-size9.size8 { + font-size: 0.83574879em; +} +.katex .sizing.reset-size9.size9, +.katex .fontsize-ensurer.reset-size9.size9 { + font-size: 1em; +} +.katex .sizing.reset-size9.size10, +.katex .fontsize-ensurer.reset-size9.size10 { + font-size: 1.20289855em; +} +.katex .sizing.reset-size10.size1, +.katex .fontsize-ensurer.reset-size10.size1 { + font-size: 0.20080321em; +} +.katex .sizing.reset-size10.size2, +.katex .fontsize-ensurer.reset-size10.size2 { + font-size: 0.2811245em; +} +.katex .sizing.reset-size10.size3, +.katex .fontsize-ensurer.reset-size10.size3 { + font-size: 0.32128514em; +} +.katex .sizing.reset-size10.size4, +.katex .fontsize-ensurer.reset-size10.size4 { + font-size: 0.36144578em; +} +.katex .sizing.reset-size10.size5, +.katex .fontsize-ensurer.reset-size10.size5 { + font-size: 0.40160643em; +} +.katex .sizing.reset-size10.size6, +.katex .fontsize-ensurer.reset-size10.size6 { + font-size: 0.48192771em; +} +.katex .sizing.reset-size10.size7, +.katex .fontsize-ensurer.reset-size10.size7 { + font-size: 0.57831325em; +} +.katex .sizing.reset-size10.size8, +.katex .fontsize-ensurer.reset-size10.size8 { + font-size: 0.69477912em; +} +.katex .sizing.reset-size10.size9, +.katex .fontsize-ensurer.reset-size10.size9 { + font-size: 0.8313253em; +} +.katex .sizing.reset-size10.size10, +.katex .fontsize-ensurer.reset-size10.size10 { + font-size: 1em; +} +.katex .delimsizing.size1 { + font-family: KaTeX_Size1; +} +.katex .delimsizing.size2 { + font-family: KaTeX_Size2; +} +.katex .delimsizing.size3 { + font-family: KaTeX_Size3; +} +.katex .delimsizing.size4 { + font-family: KaTeX_Size4; +} +.katex .delimsizing.mult .delim-size1 > span { + font-family: KaTeX_Size1; +} +.katex .delimsizing.mult .delim-size4 > span { + font-family: KaTeX_Size4; +} +.katex .nulldelimiter { + display: inline-block; + width: 0.12em; +} +.katex .op-symbol { + position: relative; +} +.katex .op-symbol.small-op { + font-family: KaTeX_Size1; +} +.katex .op-symbol.large-op { + font-family: KaTeX_Size2; +} +.katex .op-limits > .vlist > span { + text-align: center; +} +.katex .accent > .vlist > span { + text-align: center; +} +.katex .accent .accent-body > span { + width: 0; +} +.katex .accent .accent-body.accent-vec > span { + position: relative; + left: 0.326em; +} +.katex .mtable .vertical-separator { + display: inline-block; + margin: 0 -0.025em; + border-right: 0.05em solid black; +} +.katex .mtable .arraycolsep { + display: inline-block; +} +.katex .mtable .col-align-c > .vlist { + text-align: center; +} +.katex .mtable .col-align-l > .vlist { + text-align: left; +} +.katex .mtable .col-align-r > .vlist { + text-align: right; +} diff --git a/public/katex/katex.js b/public/katex/katex.js new file mode 100644 index 000000000..e104be9bf --- /dev/null +++ b/public/katex/katex.js @@ -0,0 +1,9075 @@ +(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.katex = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o 15) { + left = "…" + input.slice(start - 15, start); + } else { + left = input.slice(0, start); + } + var right; + if (end + 15 < input.length) { + right = input.slice(end, end + 15) + "…"; + } else { + right = input.slice(end); + } + error += left + underlined + right; + } + + // Some hackery to make ParseError a prototype of Error + // See http://stackoverflow.com/a/8460753 + var self = new Error(error); + self.name = "ParseError"; + self.__proto__ = ParseError.prototype; + + self.position = start; + return self; +} + +// More hackery +ParseError.prototype.__proto__ = Error.prototype; + +module.exports = ParseError; + +},{}],7:[function(require,module,exports){ +/* eslint no-constant-condition:0 */ +var functions = require("./functions"); +var environments = require("./environments"); +var MacroExpander = require("./MacroExpander"); +var symbols = require("./symbols"); +var utils = require("./utils"); +var cjkRegex = require("./unicodeRegexes").cjkRegex; + +var parseData = require("./parseData"); +var ParseError = require("./ParseError"); + +/** + * This file contains the parser used to parse out a TeX expression from the + * input. Since TeX isn't context-free, standard parsers don't work particularly + * well. + * + * The strategy of this parser is as such: + * + * The main functions (the `.parse...` ones) take a position in the current + * parse string to parse tokens from. The lexer (found in Lexer.js, stored at + * this.lexer) also supports pulling out tokens at arbitrary places. When + * individual tokens are needed at a position, the lexer is called to pull out a + * token, which is then used. + * + * The parser has a property called "mode" indicating the mode that + * the parser is currently in. Currently it has to be one of "math" or + * "text", which denotes whether the current environment is a math-y + * one or a text-y one (e.g. inside \text). Currently, this serves to + * limit the functions which can be used in text mode. + * + * The main functions then return an object which contains the useful data that + * was parsed at its given point, and a new position at the end of the parsed + * data. The main functions can call each other and continue the parsing by + * using the returned position as a new starting point. + * + * There are also extra `.handle...` functions, which pull out some reused + * functionality into self-contained functions. + * + * The earlier functions return ParseNodes. + * The later functions (which are called deeper in the parse) sometimes return + * ParseFuncOrArgument, which contain a ParseNode as well as some data about + * whether the parsed object is a function which is missing some arguments, or a + * standalone object which can be used as an argument to another function. + */ + +/** + * Main Parser class + */ +function Parser(input, settings) { + // Create a new macro expander (gullet) and (indirectly via that) also a + // new lexer (mouth) for this parser (stomach, in the language of TeX) + this.gullet = new MacroExpander(input, settings.macros); + // Store the settings for use in parsing + this.settings = settings; + // Count leftright depth (for \middle errors) + this.leftrightDepth = 0; +} + +var ParseNode = parseData.ParseNode; + +/** + * An initial function (without its arguments), or an argument to a function. + * The `result` argument should be a ParseNode. + */ +function ParseFuncOrArgument(result, isFunction, token) { + this.result = result; + // Is this a function (i.e. is it something defined in functions.js)? + this.isFunction = isFunction; + this.token = token; +} + +/** + * Checks a result to make sure it has the right type, and throws an + * appropriate error otherwise. + * + * @param {boolean=} consume whether to consume the expected token, + * defaults to true + */ +Parser.prototype.expect = function(text, consume) { + if (this.nextToken.text !== text) { + throw new ParseError( + "Expected '" + text + "', got '" + this.nextToken.text + "'", + this.nextToken + ); + } + if (consume !== false) { + this.consume(); + } +}; + +/** + * Considers the current look ahead token as consumed, + * and fetches the one after that as the new look ahead. + */ +Parser.prototype.consume = function() { + this.nextToken = this.gullet.get(this.mode === "math"); +}; + +Parser.prototype.switchMode = function(newMode) { + this.gullet.unget(this.nextToken); + this.mode = newMode; + this.consume(); +}; + +/** + * Main parsing function, which parses an entire input. + * + * @return {?Array.} + */ +Parser.prototype.parse = function() { + // Try to parse the input + this.mode = "math"; + this.consume(); + var parse = this.parseInput(); + return parse; +}; + +/** + * Parses an entire input tree. + */ +Parser.prototype.parseInput = function() { + // Parse an expression + var expression = this.parseExpression(false); + // If we succeeded, make sure there's an EOF at the end + this.expect("EOF", false); + return expression; +}; + +var endOfExpression = ["}", "\\end", "\\right", "&", "\\\\", "\\cr"]; + +/** + * Parses an "expression", which is a list of atoms. + * + * @param {boolean} breakOnInfix Should the parsing stop when we hit infix + * nodes? This happens when functions have higher precendence + * than infix nodes in implicit parses. + * + * @param {?string} breakOnTokenText The text of the token that the expression + * should end with, or `null` if something else should end the + * expression. + * + * @return {ParseNode} + */ +Parser.prototype.parseExpression = function(breakOnInfix, breakOnTokenText) { + var body = []; + // Keep adding atoms to the body until we can't parse any more atoms (either + // we reached the end, a }, or a \right) + while (true) { + var lex = this.nextToken; + if (endOfExpression.indexOf(lex.text) !== -1) { + break; + } + if (breakOnTokenText && lex.text === breakOnTokenText) { + break; + } + if (breakOnInfix && functions[lex.text] && functions[lex.text].infix) { + break; + } + var atom = this.parseAtom(); + if (!atom) { + if (!this.settings.throwOnError && lex.text[0] === "\\") { + var errorNode = this.handleUnsupportedCmd(); + body.push(errorNode); + continue; + } + + break; + } + body.push(atom); + } + return this.handleInfixNodes(body); +}; + +/** + * Rewrites infix operators such as \over with corresponding commands such + * as \frac. + * + * There can only be one infix operator per group. If there's more than one + * then the expression is ambiguous. This can be resolved by adding {}. + * + * @returns {Array} + */ +Parser.prototype.handleInfixNodes = function(body) { + var overIndex = -1; + var funcName; + + for (var i = 0; i < body.length; i++) { + var node = body[i]; + if (node.type === "infix") { + if (overIndex !== -1) { + throw new ParseError( + "only one infix operator per group", + node.value.token); + } + overIndex = i; + funcName = node.value.replaceWith; + } + } + + if (overIndex !== -1) { + var numerNode; + var denomNode; + + var numerBody = body.slice(0, overIndex); + var denomBody = body.slice(overIndex + 1); + + if (numerBody.length === 1 && numerBody[0].type === "ordgroup") { + numerNode = numerBody[0]; + } else { + numerNode = new ParseNode("ordgroup", numerBody, this.mode); + } + + if (denomBody.length === 1 && denomBody[0].type === "ordgroup") { + denomNode = denomBody[0]; + } else { + denomNode = new ParseNode("ordgroup", denomBody, this.mode); + } + + var value = this.callFunction( + funcName, [numerNode, denomNode], null); + return [new ParseNode(value.type, value, this.mode)]; + } else { + return body; + } +}; + +// The greediness of a superscript or subscript +var SUPSUB_GREEDINESS = 1; + +/** + * Handle a subscript or superscript with nice errors. + */ +Parser.prototype.handleSupSubscript = function(name) { + var symbolToken = this.nextToken; + var symbol = symbolToken.text; + this.consume(); + var group = this.parseGroup(); + + if (!group) { + if (!this.settings.throwOnError && this.nextToken.text[0] === "\\") { + return this.handleUnsupportedCmd(); + } else { + throw new ParseError( + "Expected group after '" + symbol + "'", + symbolToken + ); + } + } else if (group.isFunction) { + // ^ and _ have a greediness, so handle interactions with functions' + // greediness + var funcGreediness = functions[group.result].greediness; + if (funcGreediness > SUPSUB_GREEDINESS) { + return this.parseFunction(group); + } else { + throw new ParseError( + "Got function '" + group.result + "' with no arguments " + + "as " + name, symbolToken); + } + } else { + return group.result; + } +}; + +/** + * Converts the textual input of an unsupported command into a text node + * contained within a color node whose color is determined by errorColor + */ +Parser.prototype.handleUnsupportedCmd = function() { + var text = this.nextToken.text; + var textordArray = []; + + for (var i = 0; i < text.length; i++) { + textordArray.push(new ParseNode("textord", text[i], "text")); + } + + var textNode = new ParseNode( + "text", + { + body: textordArray, + type: "text" + }, + this.mode); + + var colorNode = new ParseNode( + "color", + { + color: this.settings.errorColor, + value: [textNode], + type: "color" + }, + this.mode); + + this.consume(); + return colorNode; +}; + +/** + * Parses a group with optional super/subscripts. + * + * @return {?ParseNode} + */ +Parser.prototype.parseAtom = function() { + // The body of an atom is an implicit group, so that things like + // \left(x\right)^2 work correctly. + var base = this.parseImplicitGroup(); + + // In text mode, we don't have superscripts or subscripts + if (this.mode === "text") { + return base; + } + + // Note that base may be empty (i.e. null) at this point. + + var superscript; + var subscript; + while (true) { + // Lex the first token + var lex = this.nextToken; + + if (lex.text === "\\limits" || lex.text === "\\nolimits") { + // We got a limit control + if (!base || base.type !== "op") { + throw new ParseError( + "Limit controls must follow a math operator", + lex); + } else { + var limits = lex.text === "\\limits"; + base.value.limits = limits; + base.value.alwaysHandleSupSub = true; + } + this.consume(); + } else if (lex.text === "^") { + // We got a superscript start + if (superscript) { + throw new ParseError("Double superscript", lex); + } + superscript = this.handleSupSubscript("superscript"); + } else if (lex.text === "_") { + // We got a subscript start + if (subscript) { + throw new ParseError("Double subscript", lex); + } + subscript = this.handleSupSubscript("subscript"); + } else if (lex.text === "'") { + // We got a prime + var prime = new ParseNode("textord", "\\prime", this.mode); + + // Many primes can be grouped together, so we handle this here + var primes = [prime]; + this.consume(); + // Keep lexing tokens until we get something that's not a prime + while (this.nextToken.text === "'") { + // For each one, add another prime to the list + primes.push(prime); + this.consume(); + } + // Put them into an ordgroup as the superscript + superscript = new ParseNode("ordgroup", primes, this.mode); + } else { + // If it wasn't ^, _, or ', stop parsing super/subscripts + break; + } + } + + if (superscript || subscript) { + // If we got either a superscript or subscript, create a supsub + return new ParseNode("supsub", { + base: base, + sup: superscript, + sub: subscript + }, this.mode); + } else { + // Otherwise return the original body + return base; + } +}; + +// A list of the size-changing functions, for use in parseImplicitGroup +var sizeFuncs = [ + "\\tiny", "\\scriptsize", "\\footnotesize", "\\small", "\\normalsize", + "\\large", "\\Large", "\\LARGE", "\\huge", "\\Huge" +]; + +// A list of the style-changing functions, for use in parseImplicitGroup +var styleFuncs = [ + "\\displaystyle", "\\textstyle", "\\scriptstyle", "\\scriptscriptstyle" +]; + +/** + * Parses an implicit group, which is a group that starts at the end of a + * specified, and ends right before a higher explicit group ends, or at EOL. It + * is used for functions that appear to affect the current style, like \Large or + * \textrm, where instead of keeping a style we just pretend that there is an + * implicit grouping after it until the end of the group. E.g. + * small text {\Large large text} small text again + * It is also used for \left and \right to get the correct grouping. + * + * @return {?ParseNode} + */ +Parser.prototype.parseImplicitGroup = function() { + var start = this.parseSymbol(); + + if (start == null) { + // If we didn't get anything we handle, fall back to parseFunction + return this.parseFunction(); + } + + var func = start.result; + var body; + + if (func === "\\left") { + // If we see a left: + // Parse the entire left function (including the delimiter) + var left = this.parseFunction(start); + // Parse out the implicit body + ++this.leftrightDepth; + body = this.parseExpression(false); + --this.leftrightDepth; + // Check the next token + this.expect("\\right", false); + var right = this.parseFunction(); + return new ParseNode("leftright", { + body: body, + left: left.value.value, + right: right.value.value + }, this.mode); + } else if (func === "\\begin") { + // begin...end is similar to left...right + var begin = this.parseFunction(start); + var envName = begin.value.name; + if (!environments.hasOwnProperty(envName)) { + throw new ParseError( + "No such environment: " + envName, begin.value.nameGroup); + } + // Build the environment object. Arguments and other information will + // be made available to the begin and end methods using properties. + var env = environments[envName]; + var args = this.parseArguments("\\begin{" + envName + "}", env); + var context = { + mode: this.mode, + envName: envName, + parser: this, + positions: args.pop() + }; + var result = env.handler(context, args); + this.expect("\\end", false); + var endNameToken = this.nextToken; + var end = this.parseFunction(); + if (end.value.name !== envName) { + throw new ParseError( + "Mismatch: \\begin{" + envName + "} matched " + + "by \\end{" + end.value.name + "}", + endNameToken); + } + result.position = end.position; + return result; + } else if (utils.contains(sizeFuncs, func)) { + // If we see a sizing function, parse out the implict body + body = this.parseExpression(false); + return new ParseNode("sizing", { + // Figure out what size to use based on the list of functions above + size: "size" + (utils.indexOf(sizeFuncs, func) + 1), + value: body + }, this.mode); + } else if (utils.contains(styleFuncs, func)) { + // If we see a styling function, parse out the implict body + body = this.parseExpression(true); + return new ParseNode("styling", { + // Figure out what style to use by pulling out the style from + // the function name + style: func.slice(1, func.length - 5), + value: body + }, this.mode); + } else { + // Defer to parseFunction if it's not a function we handle + return this.parseFunction(start); + } +}; + +/** + * Parses an entire function, including its base and all of its arguments. + * The base might either have been parsed already, in which case + * it is provided as an argument, or it's the next group in the input. + * + * @param {ParseFuncOrArgument=} baseGroup optional as described above + * @return {?ParseNode} + */ +Parser.prototype.parseFunction = function(baseGroup) { + if (!baseGroup) { + baseGroup = this.parseGroup(); + } + + if (baseGroup) { + if (baseGroup.isFunction) { + var func = baseGroup.result; + var funcData = functions[func]; + if (this.mode === "text" && !funcData.allowedInText) { + throw new ParseError( + "Can't use function '" + func + "' in text mode", + baseGroup.token); + } + + var args = this.parseArguments(func, funcData); + var token = baseGroup.token; + var result = this.callFunction(func, args, args.pop(), token); + return new ParseNode(result.type, result, this.mode); + } else { + return baseGroup.result; + } + } else { + return null; + } +}; + +/** + * Call a function handler with a suitable context and arguments. + */ +Parser.prototype.callFunction = function(name, args, positions, token) { + var context = { + funcName: name, + parser: this, + positions: positions, + token: token + }; + return functions[name].handler(context, args); +}; + +/** + * Parses the arguments of a function or environment + * + * @param {string} func "\name" or "\begin{name}" + * @param {{numArgs:number,numOptionalArgs:number|undefined}} funcData + * @return the array of arguments, with the list of positions as last element + */ +Parser.prototype.parseArguments = function(func, funcData) { + var totalArgs = funcData.numArgs + funcData.numOptionalArgs; + if (totalArgs === 0) { + return [[this.pos]]; + } + + var baseGreediness = funcData.greediness; + var positions = [this.pos]; + var args = []; + + for (var i = 0; i < totalArgs; i++) { + var nextToken = this.nextToken; + var argType = funcData.argTypes && funcData.argTypes[i]; + var arg; + if (i < funcData.numOptionalArgs) { + if (argType) { + arg = this.parseGroupOfType(argType, true); + } else { + arg = this.parseGroup(true); + } + if (!arg) { + args.push(null); + positions.push(this.pos); + continue; + } + } else { + if (argType) { + arg = this.parseGroupOfType(argType); + } else { + arg = this.parseGroup(); + } + if (!arg) { + if (!this.settings.throwOnError && + this.nextToken.text[0] === "\\") { + arg = new ParseFuncOrArgument( + this.handleUnsupportedCmd(this.nextToken.text), + false); + } else { + throw new ParseError( + "Expected group after '" + func + "'", nextToken); + } + } + } + var argNode; + if (arg.isFunction) { + var argGreediness = + functions[arg.result].greediness; + if (argGreediness > baseGreediness) { + argNode = this.parseFunction(arg); + } else { + throw new ParseError( + "Got function '" + arg.result + "' as " + + "argument to '" + func + "'", nextToken); + } + } else { + argNode = arg.result; + } + args.push(argNode); + positions.push(this.pos); + } + + args.push(positions); + + return args; +}; + + +/** + * Parses a group when the mode is changing. + * + * @return {?ParseFuncOrArgument} + */ +Parser.prototype.parseGroupOfType = function(innerMode, optional) { + var outerMode = this.mode; + // Handle `original` argTypes + if (innerMode === "original") { + innerMode = outerMode; + } + + if (innerMode === "color") { + return this.parseColorGroup(optional); + } + if (innerMode === "size") { + return this.parseSizeGroup(optional); + } + + this.switchMode(innerMode); + if (innerMode === "text") { + // text mode is special because it should ignore the whitespace before + // it + while (this.nextToken.text === " ") { + this.consume(); + } + } + // By the time we get here, innerMode is one of "text" or "math". + // We switch the mode of the parser, recurse, then restore the old mode. + var res = this.parseGroup(optional); + this.switchMode(outerMode); + return res; +}; + +/** + * Parses a group, essentially returning the string formed by the + * brace-enclosed tokens plus some position information. + * + * @param {string} modeName Used to describe the mode in error messages + * @param {boolean=} optional Whether the group is optional or required + */ +Parser.prototype.parseStringGroup = function(modeName, optional) { + if (optional && this.nextToken.text !== "[") { + return null; + } + var outerMode = this.mode; + this.mode = "text"; + this.expect(optional ? "[" : "{"); + var str = ""; + var firstToken = this.nextToken; + var lastToken = firstToken; + while (this.nextToken.text !== (optional ? "]" : "}")) { + if (this.nextToken.text === "EOF") { + throw new ParseError( + "Unexpected end of input in " + modeName, + firstToken.range(this.nextToken, str)); + } + lastToken = this.nextToken; + str += lastToken.text; + this.consume(); + } + this.mode = outerMode; + this.expect(optional ? "]" : "}"); + return firstToken.range(lastToken, str); +}; + +/** + * Parses a regex-delimited group: the largest sequence of tokens + * whose concatenated strings match `regex`. Returns the string + * formed by the tokens plus some position information. + * + * @param {RegExp} regex + * @param {string} modeName Used to describe the mode in error messages + */ +Parser.prototype.parseRegexGroup = function(regex, modeName) { + var outerMode = this.mode; + this.mode = "text"; + var firstToken = this.nextToken; + var lastToken = firstToken; + var str = ""; + while (this.nextToken.text !== "EOF" + && regex.test(str + this.nextToken.text)) { + lastToken = this.nextToken; + str += lastToken.text; + this.consume(); + } + if (str === "") { + throw new ParseError( + "Invalid " + modeName + ": '" + firstToken.text + "'", + firstToken); + } + this.mode = outerMode; + return firstToken.range(lastToken, str); +}; + +/** + * Parses a color description. + */ +Parser.prototype.parseColorGroup = function(optional) { + var res = this.parseStringGroup("color", optional); + if (!res) { + return null; + } + var match = (/^(#[a-z0-9]+|[a-z]+)$/i).exec(res.text); + if (!match) { + throw new ParseError("Invalid color: '" + res.text + "'", res); + } + return new ParseFuncOrArgument( + new ParseNode("color", match[0], this.mode), + false); +}; + +/** + * Parses a size specification, consisting of magnitude and unit. + */ +Parser.prototype.parseSizeGroup = function(optional) { + var res; + if (!optional && this.nextToken.text !== "{") { + res = this.parseRegexGroup( + /^[-+]? *(?:$|\d+|\d+\.\d*|\.\d*) *[a-z]{0,2}$/, "size"); + } else { + res = this.parseStringGroup("size", optional); + } + if (!res) { + return null; + } + var match = (/([-+]?) *(\d+(?:\.\d*)?|\.\d+) *([a-z]{2})/).exec(res.text); + if (!match) { + throw new ParseError("Invalid size: '" + res.text + "'", res); + } + var data = { + number: +(match[1] + match[2]), // sign + magnitude, cast to number + unit: match[3] + }; + if (data.unit !== "em" && data.unit !== "ex" && data.unit !== "mu") { + throw new ParseError("Invalid unit: '" + data.unit + "'", res); + } + return new ParseFuncOrArgument( + new ParseNode("color", data, this.mode), + false); +}; + +/** + * If the argument is false or absent, this parses an ordinary group, + * which is either a single nucleus (like "x") or an expression + * in braces (like "{x+y}"). + * If the argument is true, it parses either a bracket-delimited expression + * (like "[x+y]") or returns null to indicate the absence of a + * bracket-enclosed group. + * + * @param {boolean=} optional Whether the group is optional or required + * @return {?ParseFuncOrArgument} + */ +Parser.prototype.parseGroup = function(optional) { + var firstToken = this.nextToken; + // Try to parse an open brace + if (this.nextToken.text === (optional ? "[" : "{")) { + // If we get a brace, parse an expression + this.consume(); + var expression = this.parseExpression(false, optional ? "]" : null); + var lastToken = this.nextToken; + // Make sure we get a close brace + this.expect(optional ? "]" : "}"); + if (this.mode === "text") { + this.formLigatures(expression); + } + return new ParseFuncOrArgument( + new ParseNode("ordgroup", expression, this.mode, + firstToken, lastToken), + false); + } else { + // Otherwise, just return a nucleus, or nothing for an optional group + return optional ? null : this.parseSymbol(); + } +}; + +/** + * Form ligature-like combinations of characters for text mode. + * This includes inputs like "--", "---", "``" and "''". + * The result will simply replace multiple textord nodes with a single + * character in each value by a single textord node having multiple + * characters in its value. The representation is still ASCII source. + * + * @param {Array.} group the nodes of this group, + * list will be moified in place + */ +Parser.prototype.formLigatures = function(group) { + var i; + var n = group.length - 1; + for (i = 0; i < n; ++i) { + var a = group[i]; + var v = a.value; + if (v === "-" && group[i + 1].value === "-") { + if (i + 1 < n && group[i + 2].value === "-") { + group.splice(i, 3, new ParseNode( + "textord", "---", "text", a, group[i + 2])); + n -= 2; + } else { + group.splice(i, 2, new ParseNode( + "textord", "--", "text", a, group[i + 1])); + n -= 1; + } + } + if ((v === "'" || v === "`") && group[i + 1].value === v) { + group.splice(i, 2, new ParseNode( + "textord", v + v, "text", a, group[i + 1])); + n -= 1; + } + } +}; + +/** + * Parse a single symbol out of the string. Here, we handle both the functions + * we have defined, as well as the single character symbols + * + * @return {?ParseFuncOrArgument} + */ +Parser.prototype.parseSymbol = function() { + var nucleus = this.nextToken; + + if (functions[nucleus.text]) { + this.consume(); + // If there exists a function with this name, we return the function and + // say that it is a function. + return new ParseFuncOrArgument( + nucleus.text, + true, nucleus); + } else if (symbols[this.mode][nucleus.text]) { + this.consume(); + // Otherwise if this is a no-argument function, find the type it + // corresponds to in the symbols map + return new ParseFuncOrArgument( + new ParseNode(symbols[this.mode][nucleus.text].group, + nucleus.text, this.mode, nucleus), + false, nucleus); + } else if (this.mode === "text" && cjkRegex.test(nucleus.text)) { + this.consume(); + return new ParseFuncOrArgument( + new ParseNode("textord", nucleus.text, this.mode, nucleus), + false, nucleus); + } else { + return null; + } +}; + +Parser.prototype.ParseNode = ParseNode; + +module.exports = Parser; + +},{"./MacroExpander":4,"./ParseError":6,"./environments":16,"./functions":19,"./parseData":21,"./symbols":23,"./unicodeRegexes":24,"./utils":25}],8:[function(require,module,exports){ +/** + * This is a module for storing settings passed into KaTeX. It correctly handles + * default settings. + */ + +/** + * Helper function for getting a default value if the value is undefined + */ +function get(option, defaultValue) { + return option === undefined ? defaultValue : option; +} + +/** + * The main Settings object + * + * The current options stored are: + * - displayMode: Whether the expression should be typeset by default in + * textstyle or displaystyle (default false) + */ +function Settings(options) { + // allow null options + options = options || {}; + this.displayMode = get(options.displayMode, false); + this.throwOnError = get(options.throwOnError, true); + this.errorColor = get(options.errorColor, "#cc0000"); + this.macros = options.macros || {}; +} + +module.exports = Settings; + +},{}],9:[function(require,module,exports){ +/** + * This file contains information and classes for the various kinds of styles + * used in TeX. It provides a generic `Style` class, which holds information + * about a specific style. It then provides instances of all the different kinds + * of styles possible, and provides functions to move between them and get + * information about them. + */ + +var sigmas = require("./fontMetrics.js").sigmas; + +var metrics = [{}, {}, {}]; +var i; +for (var key in sigmas) { + if (sigmas.hasOwnProperty(key)) { + for (i = 0; i < 3; i++) { + metrics[i][key] = sigmas[key][i]; + } + } +} +for (i = 0; i < 3; i++) { + metrics[i].emPerEx = sigmas.xHeight[i] / sigmas.quad[i]; +} + +/** + * The main style class. Contains a unique id for the style, a size (which is + * the same for cramped and uncramped version of a style), a cramped flag, and a + * size multiplier, which gives the size difference between a style and + * textstyle. + */ +function Style(id, size, multiplier, cramped) { + this.id = id; + this.size = size; + this.cramped = cramped; + this.sizeMultiplier = multiplier; + this.metrics = metrics[size > 0 ? size - 1 : 0]; +} + +/** + * Get the style of a superscript given a base in the current style. + */ +Style.prototype.sup = function() { + return styles[sup[this.id]]; +}; + +/** + * Get the style of a subscript given a base in the current style. + */ +Style.prototype.sub = function() { + return styles[sub[this.id]]; +}; + +/** + * Get the style of a fraction numerator given the fraction in the current + * style. + */ +Style.prototype.fracNum = function() { + return styles[fracNum[this.id]]; +}; + +/** + * Get the style of a fraction denominator given the fraction in the current + * style. + */ +Style.prototype.fracDen = function() { + return styles[fracDen[this.id]]; +}; + +/** + * Get the cramped version of a style (in particular, cramping a cramped style + * doesn't change the style). + */ +Style.prototype.cramp = function() { + return styles[cramp[this.id]]; +}; + +/** + * HTML class name, like "displaystyle cramped" + */ +Style.prototype.cls = function() { + return sizeNames[this.size] + (this.cramped ? " cramped" : " uncramped"); +}; + +/** + * HTML Reset class name, like "reset-textstyle" + */ +Style.prototype.reset = function() { + return resetNames[this.size]; +}; + +/** + * Return if this style is tightly spaced (scriptstyle/scriptscriptstyle) + */ +Style.prototype.isTight = function() { + return this.size >= 2; +}; + +// IDs of the different styles +var D = 0; +var Dc = 1; +var T = 2; +var Tc = 3; +var S = 4; +var Sc = 5; +var SS = 6; +var SSc = 7; + +// String names for the different sizes +var sizeNames = [ + "displaystyle textstyle", + "textstyle", + "scriptstyle", + "scriptscriptstyle" +]; + +// Reset names for the different sizes +var resetNames = [ + "reset-textstyle", + "reset-textstyle", + "reset-scriptstyle", + "reset-scriptscriptstyle" +]; + +// Instances of the different styles +var styles = [ + new Style(D, 0, 1.0, false), + new Style(Dc, 0, 1.0, true), + new Style(T, 1, 1.0, false), + new Style(Tc, 1, 1.0, true), + new Style(S, 2, 0.7, false), + new Style(Sc, 2, 0.7, true), + new Style(SS, 3, 0.5, false), + new Style(SSc, 3, 0.5, true) +]; + +// Lookup tables for switching from one style to another +var sup = [S, Sc, S, Sc, SS, SSc, SS, SSc]; +var sub = [Sc, Sc, Sc, Sc, SSc, SSc, SSc, SSc]; +var fracNum = [T, Tc, S, Sc, SS, SSc, SS, SSc]; +var fracDen = [Tc, Tc, Sc, Sc, SSc, SSc, SSc, SSc]; +var cramp = [Dc, Dc, Tc, Tc, Sc, Sc, SSc, SSc]; + +// We only export some of the styles. Also, we don't export the `Style` class so +// no more styles can be generated. +module.exports = { + DISPLAY: styles[D], + TEXT: styles[T], + SCRIPT: styles[S], + SCRIPTSCRIPT: styles[SS] +}; + +},{"./fontMetrics.js":17}],10:[function(require,module,exports){ +/* eslint no-console:0 */ +/** + * This module contains general functions that can be used for building + * different kinds of domTree nodes in a consistent manner. + */ + +var domTree = require("./domTree"); +var fontMetrics = require("./fontMetrics"); +var symbols = require("./symbols"); +var utils = require("./utils"); + +var greekCapitals = [ + "\\Gamma", + "\\Delta", + "\\Theta", + "\\Lambda", + "\\Xi", + "\\Pi", + "\\Sigma", + "\\Upsilon", + "\\Phi", + "\\Psi", + "\\Omega" +]; + +// The following have to be loaded from Main-Italic font, using class mainit +var mainitLetters = [ + "\u0131", // dotless i, \imath + "\u0237", // dotless j, \jmath + "\u00a3" // \pounds +]; + +/** + * Makes a symbolNode after translation via the list of symbols in symbols.js. + * Correctly pulls out metrics for the character, and optionally takes a list of + * classes to be attached to the node. + * + * TODO: make argument order closer to makeSpan + * TODO: add a separate argument for math class (e.g. `mop`, `mbin`), which + * should if present come first in `classes`. + */ +var makeSymbol = function(value, fontFamily, mode, options, classes) { + // Replace the value with its replaced value from symbol.js + if (symbols[mode][value] && symbols[mode][value].replace) { + value = symbols[mode][value].replace; + } + + var metrics = fontMetrics.getCharacterMetrics(value, fontFamily); + + var symbolNode; + if (metrics) { + var italic = metrics.italic; + if (mode === "text") { + italic = 0; + } + symbolNode = new domTree.symbolNode( + value, metrics.height, metrics.depth, italic, metrics.skew, + classes); + } else { + // TODO(emily): Figure out a good way to only print this in development + typeof console !== "undefined" && console.warn( + "No character metrics for '" + value + "' in style '" + + fontFamily + "'"); + symbolNode = new domTree.symbolNode(value, 0, 0, 0, 0, classes); + } + + if (options) { + if (options.style.isTight()) { + symbolNode.classes.push("mtight"); + } + if (options.getColor()) { + symbolNode.style.color = options.getColor(); + } + } + + return symbolNode; +}; + +/** + * Makes a symbol in Main-Regular or AMS-Regular. + * Used for rel, bin, open, close, inner, and punct. + */ +var mathsym = function(value, mode, options, classes) { + // Decide what font to render the symbol in by its entry in the symbols + // table. + // Have a special case for when the value = \ because the \ is used as a + // textord in unsupported command errors but cannot be parsed as a regular + // text ordinal and is therefore not present as a symbol in the symbols + // table for text + if (value === "\\" || symbols[mode][value].font === "main") { + return makeSymbol(value, "Main-Regular", mode, options, classes); + } else { + return makeSymbol( + value, "AMS-Regular", mode, options, classes.concat(["amsrm"])); + } +}; + +/** + * Makes a symbol in the default font for mathords and textords. + */ +var mathDefault = function(value, mode, options, classes, type) { + if (type === "mathord") { + return mathit(value, mode, options, classes); + } else if (type === "textord") { + return makeSymbol( + value, "Main-Regular", mode, options, classes.concat(["mathrm"])); + } else { + throw new Error("unexpected type: " + type + " in mathDefault"); + } +}; + +/** + * Makes a symbol in the italic math font. + */ +var mathit = function(value, mode, options, classes) { + if (/[0-9]/.test(value.charAt(0)) || + // glyphs for \imath and \jmath do not exist in Math-Italic so we + // need to use Main-Italic instead + utils.contains(mainitLetters, value) || + utils.contains(greekCapitals, value)) { + return makeSymbol( + value, "Main-Italic", mode, options, classes.concat(["mainit"])); + } else { + return makeSymbol( + value, "Math-Italic", mode, options, classes.concat(["mathit"])); + } +}; + +/** + * Makes either a mathord or textord in the correct font and color. + */ +var makeOrd = function(group, options, type) { + var mode = group.mode; + var value = group.value; + if (symbols[mode][value] && symbols[mode][value].replace) { + value = symbols[mode][value].replace; + } + + var classes = ["mord"]; + + var font = options.font; + if (font) { + if (font === "mathit" || utils.contains(mainitLetters, value)) { + return mathit(value, mode, options, classes); + } else { + var fontName = fontMap[font].fontName; + if (fontMetrics.getCharacterMetrics(value, fontName)) { + return makeSymbol( + value, fontName, mode, options, classes.concat([font])); + } else { + return mathDefault(value, mode, options, classes, type); + } + } + } else { + return mathDefault(value, mode, options, classes, type); + } +}; + +/** + * Calculate the height, depth, and maxFontSize of an element based on its + * children. + */ +var sizeElementFromChildren = function(elem) { + var height = 0; + var depth = 0; + var maxFontSize = 0; + + if (elem.children) { + for (var i = 0; i < elem.children.length; i++) { + if (elem.children[i].height > height) { + height = elem.children[i].height; + } + if (elem.children[i].depth > depth) { + depth = elem.children[i].depth; + } + if (elem.children[i].maxFontSize > maxFontSize) { + maxFontSize = elem.children[i].maxFontSize; + } + } + } + + elem.height = height; + elem.depth = depth; + elem.maxFontSize = maxFontSize; +}; + +/** + * Makes a span with the given list of classes, list of children, and options. + * + * TODO: Ensure that `options` is always provided (currently some call sites + * don't pass it). + * TODO: add a separate argument for math class (e.g. `mop`, `mbin`), which + * should if present come first in `classes`. + */ +var makeSpan = function(classes, children, options) { + var span = new domTree.span(classes, children, options); + + sizeElementFromChildren(span); + + return span; +}; + +/** + * Prepends the given children to the given span, updating height, depth, and + * maxFontSize. + */ +var prependChildren = function(span, children) { + span.children = children.concat(span.children); + + sizeElementFromChildren(span); +}; + +/** + * Makes a document fragment with the given list of children. + */ +var makeFragment = function(children) { + var fragment = new domTree.documentFragment(children); + + sizeElementFromChildren(fragment); + + return fragment; +}; + +/** + * Makes an element placed in each of the vlist elements to ensure that each + * element has the same max font size. To do this, we create a zero-width space + * with the correct font size. + */ +var makeFontSizer = function(options, fontSize) { + var fontSizeInner = makeSpan([], [new domTree.symbolNode("\u200b")]); + fontSizeInner.style.fontSize = + (fontSize / options.style.sizeMultiplier) + "em"; + + var fontSizer = makeSpan( + ["fontsize-ensurer", "reset-" + options.size, "size5"], + [fontSizeInner]); + + return fontSizer; +}; + +/** + * Makes a vertical list by stacking elements and kerns on top of each other. + * Allows for many different ways of specifying the positioning method. + * + * Arguments: + * - children: A list of child or kern nodes to be stacked on top of each other + * (i.e. the first element will be at the bottom, and the last at + * the top). Element nodes are specified as + * {type: "elem", elem: node} + * while kern nodes are specified as + * {type: "kern", size: size} + * - positionType: The method by which the vlist should be positioned. Valid + * values are: + * - "individualShift": The children list only contains elem + * nodes, and each node contains an extra + * "shift" value of how much it should be + * shifted (note that shifting is always + * moving downwards). positionData is + * ignored. + * - "top": The positionData specifies the topmost point of + * the vlist (note this is expected to be a height, + * so positive values move up) + * - "bottom": The positionData specifies the bottommost point + * of the vlist (note this is expected to be a + * depth, so positive values move down + * - "shift": The vlist will be positioned such that its + * baseline is positionData away from the baseline + * of the first child. Positive values move + * downwards. + * - "firstBaseline": The vlist will be positioned such that + * its baseline is aligned with the + * baseline of the first child. + * positionData is ignored. (this is + * equivalent to "shift" with + * positionData=0) + * - positionData: Data used in different ways depending on positionType + * - options: An Options object + * + */ +var makeVList = function(children, positionType, positionData, options) { + var depth; + var currPos; + var i; + if (positionType === "individualShift") { + var oldChildren = children; + children = [oldChildren[0]]; + + // Add in kerns to the list of children to get each element to be + // shifted to the correct specified shift + depth = -oldChildren[0].shift - oldChildren[0].elem.depth; + currPos = depth; + for (i = 1; i < oldChildren.length; i++) { + var diff = -oldChildren[i].shift - currPos - + oldChildren[i].elem.depth; + var size = diff - + (oldChildren[i - 1].elem.height + + oldChildren[i - 1].elem.depth); + + currPos = currPos + diff; + + children.push({type: "kern", size: size}); + children.push(oldChildren[i]); + } + } else if (positionType === "top") { + // We always start at the bottom, so calculate the bottom by adding up + // all the sizes + var bottom = positionData; + for (i = 0; i < children.length; i++) { + if (children[i].type === "kern") { + bottom -= children[i].size; + } else { + bottom -= children[i].elem.height + children[i].elem.depth; + } + } + depth = bottom; + } else if (positionType === "bottom") { + depth = -positionData; + } else if (positionType === "shift") { + depth = -children[0].elem.depth - positionData; + } else if (positionType === "firstBaseline") { + depth = -children[0].elem.depth; + } else { + depth = 0; + } + + // Make the fontSizer + var maxFontSize = 0; + for (i = 0; i < children.length; i++) { + if (children[i].type === "elem") { + maxFontSize = Math.max(maxFontSize, children[i].elem.maxFontSize); + } + } + var fontSizer = makeFontSizer(options, maxFontSize); + + // Create a new list of actual children at the correct offsets + var realChildren = []; + currPos = depth; + for (i = 0; i < children.length; i++) { + if (children[i].type === "kern") { + currPos += children[i].size; + } else { + var child = children[i].elem; + + var shift = -child.depth - currPos; + currPos += child.height + child.depth; + + var childWrap = makeSpan([], [fontSizer, child]); + childWrap.height -= shift; + childWrap.depth += shift; + childWrap.style.top = shift + "em"; + + realChildren.push(childWrap); + } + } + + // Add in an element at the end with no offset to fix the calculation of + // baselines in some browsers (namely IE, sometimes safari) + var baselineFix = makeSpan( + ["baseline-fix"], [fontSizer, new domTree.symbolNode("\u200b")]); + realChildren.push(baselineFix); + + var vlist = makeSpan(["vlist"], realChildren); + // Fix the final height and depth, in case there were kerns at the ends + // since the makeSpan calculation won't take that in to account. + vlist.height = Math.max(currPos, vlist.height); + vlist.depth = Math.max(-depth, vlist.depth); + return vlist; +}; + +// A table of size -> font size for the different sizing functions +var sizingMultiplier = { + size1: 0.5, + size2: 0.7, + size3: 0.8, + size4: 0.9, + size5: 1.0, + size6: 1.2, + size7: 1.44, + size8: 1.73, + size9: 2.07, + size10: 2.49 +}; + +// A map of spacing functions to their attributes, like size and corresponding +// CSS class +var spacingFunctions = { + "\\qquad": { + size: "2em", + className: "qquad" + }, + "\\quad": { + size: "1em", + className: "quad" + }, + "\\enspace": { + size: "0.5em", + className: "enspace" + }, + "\\;": { + size: "0.277778em", + className: "thickspace" + }, + "\\:": { + size: "0.22222em", + className: "mediumspace" + }, + "\\,": { + size: "0.16667em", + className: "thinspace" + }, + "\\!": { + size: "-0.16667em", + className: "negativethinspace" + } +}; + +/** + * Maps TeX font commands to objects containing: + * - variant: string used for "mathvariant" attribute in buildMathML.js + * - fontName: the "style" parameter to fontMetrics.getCharacterMetrics + */ +// A map between tex font commands an MathML mathvariant attribute values +var fontMap = { + // styles + "mathbf": { + variant: "bold", + fontName: "Main-Bold" + }, + "mathrm": { + variant: "normal", + fontName: "Main-Regular" + }, + "textit": { + variant: "italic", + fontName: "Main-Italic" + }, + + // "mathit" is missing because it requires the use of two fonts: Main-Italic + // and Math-Italic. This is handled by a special case in makeOrd which ends + // up calling mathit. + + // families + "mathbb": { + variant: "double-struck", + fontName: "AMS-Regular" + }, + "mathcal": { + variant: "script", + fontName: "Caligraphic-Regular" + }, + "mathfrak": { + variant: "fraktur", + fontName: "Fraktur-Regular" + }, + "mathscr": { + variant: "script", + fontName: "Script-Regular" + }, + "mathsf": { + variant: "sans-serif", + fontName: "SansSerif-Regular" + }, + "mathtt": { + variant: "monospace", + fontName: "Typewriter-Regular" + } +}; + +module.exports = { + fontMap: fontMap, + makeSymbol: makeSymbol, + mathsym: mathsym, + makeSpan: makeSpan, + makeFragment: makeFragment, + makeVList: makeVList, + makeOrd: makeOrd, + prependChildren: prependChildren, + sizingMultiplier: sizingMultiplier, + spacingFunctions: spacingFunctions +}; + +},{"./domTree":15,"./fontMetrics":17,"./symbols":23,"./utils":25}],11:[function(require,module,exports){ +/* eslint no-console:0 */ +/** + * This file does the main work of building a domTree structure from a parse + * tree. The entry point is the `buildHTML` function, which takes a parse tree. + * Then, the buildExpression, buildGroup, and various groupTypes functions are + * called, to produce a final HTML tree. + */ + +var ParseError = require("./ParseError"); +var Style = require("./Style"); + +var buildCommon = require("./buildCommon"); +var delimiter = require("./delimiter"); +var domTree = require("./domTree"); +var fontMetrics = require("./fontMetrics"); +var utils = require("./utils"); + +var makeSpan = buildCommon.makeSpan; + +var isSpace = function(node) { + return node instanceof domTree.span && node.classes[0] === "mspace"; +}; + +// Binary atoms (first class `mbin`) change into ordinary atoms (`mord`) +// depending on their surroundings. See TeXbook pg. 442-446, Rules 5 and 6, +// and the text before Rule 19. + +var isBin = function(node) { + return node && node.classes[0] === "mbin"; +}; + +var isBinLeftCanceller = function(node, isRealGroup) { + // TODO: This code assumes that a node's math class is the first element + // of its `classes` array. A later cleanup should ensure this, for + // instance by changing the signature of `makeSpan`. + if (node) { + return utils.contains(["mbin", "mopen", "mrel", "mop", "mpunct"], + node.classes[0]); + } else { + return isRealGroup; + } +}; + +var isBinRightCanceller = function(node, isRealGroup) { + if (node) { + return utils.contains(["mrel", "mclose", "mpunct"], node.classes[0]); + } else { + return isRealGroup; + } +}; + +/** + * Take a list of nodes, build them in order, and return a list of the built + * nodes. documentFragments are flattened into their contents, so the + * returned list contains no fragments. `isRealGroup` is true if `expression` + * is a real group (no atoms will be added on either side), as opposed to + * a partial group (e.g. one created by \color). + */ +var buildExpression = function(expression, options, isRealGroup) { + // Parse expressions into `groups`. + var groups = []; + for (var i = 0; i < expression.length; i++) { + var group = expression[i]; + var output = buildGroup(group, options); + if (output instanceof domTree.documentFragment) { + Array.prototype.push.apply(groups, output.children); + } else { + groups.push(output); + } + } + // At this point `groups` consists entirely of `symbolNode`s and `span`s. + + // Explicit spaces (e.g., \;, \,) should be ignored with respect to atom + // spacing (e.g., "add thick space between mord and mrel"). Since CSS + // adjacency rules implement atom spacing, spaces should be invisible to + // CSS. So we splice them out of `groups` and into the atoms themselves. + var spaces = null; + for (i = 0; i < groups.length; i++) { + if (isSpace(groups[i])) { + spaces = spaces || []; + spaces.push(groups[i]); + groups.splice(i, 1); + i--; + } else if (spaces) { + if (groups[i] instanceof domTree.symbolNode) { + groups[i] = makeSpan([].concat(groups[i].classes), [groups[i]]); + } + buildCommon.prependChildren(groups[i], spaces); + spaces = null; + } + } + if (spaces) { + Array.prototype.push.apply(groups, spaces); + } + + // Binary operators change to ordinary symbols in some contexts. + for (i = 0; i < groups.length; i++) { + if (isBin(groups[i]) + && (isBinLeftCanceller(groups[i - 1], isRealGroup) + || isBinRightCanceller(groups[i + 1], isRealGroup))) { + groups[i].classes[0] = "mord"; + } + } + + return groups; +}; + +// Return math atom class (mclass) of a domTree. +var getTypeOfDomTree = function(node) { + if (node instanceof domTree.documentFragment) { + if (node.children.length) { + return getTypeOfDomTree( + node.children[node.children.length - 1]); + } + } else { + if (utils.contains(["mord", "mop", "mbin", "mrel", "mopen", "mclose", + "mpunct", "minner"], node.classes[0])) { + return node.classes[0]; + } + } + return null; +}; + +/** + * Sometimes, groups perform special rules when they have superscripts or + * subscripts attached to them. This function lets the `supsub` group know that + * its inner element should handle the superscripts and subscripts instead of + * handling them itself. + */ +var shouldHandleSupSub = function(group, options) { + if (!group) { + return false; + } else if (group.type === "op") { + // Operators handle supsubs differently when they have limits + // (e.g. `\displaystyle\sum_2^3`) + return group.value.limits && + (options.style.size === Style.DISPLAY.size || + group.value.alwaysHandleSupSub); + } else if (group.type === "accent") { + return isCharacterBox(group.value.base); + } else { + return null; + } +}; + +/** + * Sometimes we want to pull out the innermost element of a group. In most + * cases, this will just be the group itself, but when ordgroups and colors have + * a single element, we want to pull that out. + */ +var getBaseElem = function(group) { + if (!group) { + return false; + } else if (group.type === "ordgroup") { + if (group.value.length === 1) { + return getBaseElem(group.value[0]); + } else { + return group; + } + } else if (group.type === "color") { + if (group.value.value.length === 1) { + return getBaseElem(group.value.value[0]); + } else { + return group; + } + } else if (group.type === "font") { + return getBaseElem(group.value.body); + } else { + return group; + } +}; + +/** + * TeXbook algorithms often reference "character boxes", which are simply groups + * with a single character in them. To decide if something is a character box, + * we find its innermost group, and see if it is a single character. + */ +var isCharacterBox = function(group) { + var baseElem = getBaseElem(group); + + // These are all they types of groups which hold single characters + return baseElem.type === "mathord" || + baseElem.type === "textord" || + baseElem.type === "bin" || + baseElem.type === "rel" || + baseElem.type === "inner" || + baseElem.type === "open" || + baseElem.type === "close" || + baseElem.type === "punct"; +}; + +var makeNullDelimiter = function(options, classes) { + return makeSpan(classes.concat([ + "sizing", "reset-" + options.size, "size5", + options.style.reset(), Style.TEXT.cls(), + "nulldelimiter"])); +}; + +/** + * This is a map of group types to the function used to handle that type. + * Simpler types come at the beginning, while complicated types come afterwards. + */ +var groupTypes = {}; + +groupTypes.mathord = function(group, options) { + return buildCommon.makeOrd(group, options, "mathord"); +}; + +groupTypes.textord = function(group, options) { + return buildCommon.makeOrd(group, options, "textord"); +}; + +groupTypes.bin = function(group, options) { + return buildCommon.mathsym( + group.value, group.mode, options, ["mbin"]); +}; + +groupTypes.rel = function(group, options) { + return buildCommon.mathsym( + group.value, group.mode, options, ["mrel"]); +}; + +groupTypes.open = function(group, options) { + return buildCommon.mathsym( + group.value, group.mode, options, ["mopen"]); +}; + +groupTypes.close = function(group, options) { + return buildCommon.mathsym( + group.value, group.mode, options, ["mclose"]); +}; + +groupTypes.inner = function(group, options) { + return buildCommon.mathsym( + group.value, group.mode, options, ["minner"]); +}; + +groupTypes.punct = function(group, options) { + return buildCommon.mathsym( + group.value, group.mode, options, ["mpunct"]); +}; + +groupTypes.ordgroup = function(group, options) { + return makeSpan( + ["mord", options.style.cls()], + buildExpression(group.value, options.reset(), true), + options + ); +}; + +groupTypes.text = function(group, options) { + var newOptions = options.withFont(group.value.style); + var inner = buildExpression(group.value.body, newOptions, true); + for (var i = 0; i < inner.length - 1; i++) { + if (inner[i].tryCombine(inner[i + 1])) { + inner.splice(i + 1, 1); + i--; + } + } + return makeSpan(["mord", "text", newOptions.style.cls()], + inner, newOptions); +}; + +groupTypes.color = function(group, options) { + var elements = buildExpression( + group.value.value, + options.withColor(group.value.color), + false + ); + + // \color isn't supposed to affect the type of the elements it contains. + // To accomplish this, we wrap the results in a fragment, so the inner + // elements will be able to directly interact with their neighbors. For + // example, `\color{red}{2 +} 3` has the same spacing as `2 + 3` + return new buildCommon.makeFragment(elements); +}; + +groupTypes.supsub = function(group, options) { + // Superscript and subscripts are handled in the TeXbook on page + // 445-446, rules 18(a-f). + + // Here is where we defer to the inner group if it should handle + // superscripts and subscripts itself. + if (shouldHandleSupSub(group.value.base, options)) { + return groupTypes[group.value.base.type](group, options); + } + + var base = buildGroup(group.value.base, options.reset()); + var supmid; + var submid; + var sup; + var sub; + + var style = options.style; + var newOptions; + + if (group.value.sup) { + newOptions = options.withStyle(style.sup()); + sup = buildGroup(group.value.sup, newOptions); + supmid = makeSpan([style.reset(), style.sup().cls()], + [sup], newOptions); + } + + if (group.value.sub) { + newOptions = options.withStyle(style.sub()); + sub = buildGroup(group.value.sub, newOptions); + submid = makeSpan([style.reset(), style.sub().cls()], + [sub], newOptions); + } + + // Rule 18a + var supShift; + var subShift; + if (isCharacterBox(group.value.base)) { + supShift = 0; + subShift = 0; + } else { + supShift = base.height - style.metrics.supDrop; + subShift = base.depth + style.metrics.subDrop; + } + + // Rule 18c + var minSupShift; + if (style === Style.DISPLAY) { + minSupShift = style.metrics.sup1; + } else if (style.cramped) { + minSupShift = style.metrics.sup3; + } else { + minSupShift = style.metrics.sup2; + } + + // scriptspace is a font-size-independent size, so scale it + // appropriately + var multiplier = Style.TEXT.sizeMultiplier * + style.sizeMultiplier; + var scriptspace = + (0.5 / fontMetrics.metrics.ptPerEm) / multiplier + "em"; + + var supsub; + if (!group.value.sup) { + // Rule 18b + subShift = Math.max( + subShift, style.metrics.sub1, + sub.height - 0.8 * style.metrics.xHeight); + + supsub = buildCommon.makeVList([ + {type: "elem", elem: submid} + ], "shift", subShift, options); + + supsub.children[0].style.marginRight = scriptspace; + + // Subscripts shouldn't be shifted by the base's italic correction. + // Account for that by shifting the subscript back the appropriate + // amount. Note we only do this when the base is a single symbol. + if (base instanceof domTree.symbolNode) { + supsub.children[0].style.marginLeft = -base.italic + "em"; + } + } else if (!group.value.sub) { + // Rule 18c, d + supShift = Math.max(supShift, minSupShift, + sup.depth + 0.25 * style.metrics.xHeight); + + supsub = buildCommon.makeVList([ + {type: "elem", elem: supmid} + ], "shift", -supShift, options); + + supsub.children[0].style.marginRight = scriptspace; + } else { + supShift = Math.max( + supShift, minSupShift, sup.depth + 0.25 * style.metrics.xHeight); + subShift = Math.max(subShift, style.metrics.sub2); + + var ruleWidth = fontMetrics.metrics.defaultRuleThickness; + + // Rule 18e + if ((supShift - sup.depth) - (sub.height - subShift) < + 4 * ruleWidth) { + subShift = 4 * ruleWidth - (supShift - sup.depth) + sub.height; + var psi = 0.8 * style.metrics.xHeight - (supShift - sup.depth); + if (psi > 0) { + supShift += psi; + subShift -= psi; + } + } + + supsub = buildCommon.makeVList([ + {type: "elem", elem: submid, shift: subShift}, + {type: "elem", elem: supmid, shift: -supShift} + ], "individualShift", null, options); + + // See comment above about subscripts not being shifted + if (base instanceof domTree.symbolNode) { + supsub.children[0].style.marginLeft = -base.italic + "em"; + } + + supsub.children[0].style.marginRight = scriptspace; + supsub.children[1].style.marginRight = scriptspace; + } + + // We ensure to wrap the supsub vlist in a span.msupsub to reset text-align + var mclass = getTypeOfDomTree(base) || "mord"; + return makeSpan([mclass], + [base, makeSpan(["msupsub"], [supsub])], + options); +}; + +groupTypes.genfrac = function(group, options) { + // Fractions are handled in the TeXbook on pages 444-445, rules 15(a-e). + // Figure out what style this fraction should be in based on the + // function used + var style = options.style; + if (group.value.size === "display") { + style = Style.DISPLAY; + } else if (group.value.size === "text") { + style = Style.TEXT; + } + + var nstyle = style.fracNum(); + var dstyle = style.fracDen(); + var newOptions; + + newOptions = options.withStyle(nstyle); + var numer = buildGroup(group.value.numer, newOptions); + var numerreset = makeSpan([style.reset(), nstyle.cls()], + [numer], newOptions); + + newOptions = options.withStyle(dstyle); + var denom = buildGroup(group.value.denom, newOptions); + var denomreset = makeSpan([style.reset(), dstyle.cls()], + [denom], newOptions); + + var ruleWidth; + if (group.value.hasBarLine) { + ruleWidth = fontMetrics.metrics.defaultRuleThickness / + options.style.sizeMultiplier; + } else { + ruleWidth = 0; + } + + // Rule 15b + var numShift; + var clearance; + var denomShift; + if (style.size === Style.DISPLAY.size) { + numShift = style.metrics.num1; + if (ruleWidth > 0) { + clearance = 3 * ruleWidth; + } else { + clearance = 7 * fontMetrics.metrics.defaultRuleThickness; + } + denomShift = style.metrics.denom1; + } else { + if (ruleWidth > 0) { + numShift = style.metrics.num2; + clearance = ruleWidth; + } else { + numShift = style.metrics.num3; + clearance = 3 * fontMetrics.metrics.defaultRuleThickness; + } + denomShift = style.metrics.denom2; + } + + var frac; + if (ruleWidth === 0) { + // Rule 15c + var candidateClearance = + (numShift - numer.depth) - (denom.height - denomShift); + if (candidateClearance < clearance) { + numShift += 0.5 * (clearance - candidateClearance); + denomShift += 0.5 * (clearance - candidateClearance); + } + + frac = buildCommon.makeVList([ + {type: "elem", elem: denomreset, shift: denomShift}, + {type: "elem", elem: numerreset, shift: -numShift} + ], "individualShift", null, options); + } else { + // Rule 15d + var axisHeight = style.metrics.axisHeight; + + if ((numShift - numer.depth) - (axisHeight + 0.5 * ruleWidth) < + clearance) { + numShift += + clearance - ((numShift - numer.depth) - + (axisHeight + 0.5 * ruleWidth)); + } + + if ((axisHeight - 0.5 * ruleWidth) - (denom.height - denomShift) < + clearance) { + denomShift += + clearance - ((axisHeight - 0.5 * ruleWidth) - + (denom.height - denomShift)); + } + + var mid = makeSpan( + [options.style.reset(), Style.TEXT.cls(), "frac-line"]); + // Manually set the height of the line because its height is + // created in CSS + mid.height = ruleWidth; + + var midShift = -(axisHeight - 0.5 * ruleWidth); + + frac = buildCommon.makeVList([ + {type: "elem", elem: denomreset, shift: denomShift}, + {type: "elem", elem: mid, shift: midShift}, + {type: "elem", elem: numerreset, shift: -numShift} + ], "individualShift", null, options); + } + + // Since we manually change the style sometimes (with \dfrac or \tfrac), + // account for the possible size change here. + frac.height *= style.sizeMultiplier / options.style.sizeMultiplier; + frac.depth *= style.sizeMultiplier / options.style.sizeMultiplier; + + // Rule 15e + var delimSize; + if (style.size === Style.DISPLAY.size) { + delimSize = style.metrics.delim1; + } else { + delimSize = style.metrics.delim2; + } + + var leftDelim; + var rightDelim; + if (group.value.leftDelim == null) { + leftDelim = makeNullDelimiter(options, ["mopen"]); + } else { + leftDelim = delimiter.customSizedDelim( + group.value.leftDelim, delimSize, true, + options.withStyle(style), group.mode, ["mopen"]); + } + if (group.value.rightDelim == null) { + rightDelim = makeNullDelimiter(options, ["mclose"]); + } else { + rightDelim = delimiter.customSizedDelim( + group.value.rightDelim, delimSize, true, + options.withStyle(style), group.mode, ["mclose"]); + } + + return makeSpan( + ["mord", options.style.reset(), style.cls()], + [leftDelim, makeSpan(["mfrac"], [frac]), rightDelim], + options); +}; + +var calculateSize = function(sizeValue, style) { + var x = sizeValue.number; + if (sizeValue.unit === "ex") { + x *= style.metrics.emPerEx; + } else if (sizeValue.unit === "mu") { + x /= 18; + } + return x; +}; + +groupTypes.array = function(group, options) { + var r; + var c; + var nr = group.value.body.length; + var nc = 0; + var body = new Array(nr); + + var style = options.style; + + // Horizontal spacing + var pt = 1 / fontMetrics.metrics.ptPerEm; + var arraycolsep = 5 * pt; // \arraycolsep in article.cls + + // Vertical spacing + var baselineskip = 12 * pt; // see size10.clo + // Default \arraystretch from lttab.dtx + // TODO(gagern): may get redefined once we have user-defined macros + var arraystretch = utils.deflt(group.value.arraystretch, 1); + var arrayskip = arraystretch * baselineskip; + var arstrutHeight = 0.7 * arrayskip; // \strutbox in ltfsstrc.dtx and + var arstrutDepth = 0.3 * arrayskip; // \@arstrutbox in lttab.dtx + + var totalHeight = 0; + for (r = 0; r < group.value.body.length; ++r) { + var inrow = group.value.body[r]; + var height = arstrutHeight; // \@array adds an \@arstrut + var depth = arstrutDepth; // to each tow (via the template) + + if (nc < inrow.length) { + nc = inrow.length; + } + + var outrow = new Array(inrow.length); + for (c = 0; c < inrow.length; ++c) { + var elt = buildGroup(inrow[c], options); + if (depth < elt.depth) { + depth = elt.depth; + } + if (height < elt.height) { + height = elt.height; + } + outrow[c] = elt; + } + + var gap = 0; + if (group.value.rowGaps[r]) { + gap = calculateSize(group.value.rowGaps[r].value, style); + if (gap > 0) { // \@argarraycr + gap += arstrutDepth; + if (depth < gap) { + depth = gap; // \@xargarraycr + } + gap = 0; + } + } + + outrow.height = height; + outrow.depth = depth; + totalHeight += height; + outrow.pos = totalHeight; + totalHeight += depth + gap; // \@yargarraycr + body[r] = outrow; + } + + var offset = totalHeight / 2 + style.metrics.axisHeight; + var colDescriptions = group.value.cols || []; + var cols = []; + var colSep; + var colDescrNum; + for (c = 0, colDescrNum = 0; + // Continue while either there are more columns or more column + // descriptions, so trailing separators don't get lost. + c < nc || colDescrNum < colDescriptions.length; + ++c, ++colDescrNum) { + + var colDescr = colDescriptions[colDescrNum] || {}; + + var firstSeparator = true; + while (colDescr.type === "separator") { + // If there is more than one separator in a row, add a space + // between them. + if (!firstSeparator) { + colSep = makeSpan(["arraycolsep"], []); + colSep.style.width = + fontMetrics.metrics.doubleRuleSep + "em"; + cols.push(colSep); + } + + if (colDescr.separator === "|") { + var separator = makeSpan( + ["vertical-separator"], + []); + separator.style.height = totalHeight + "em"; + separator.style.verticalAlign = + -(totalHeight - offset) + "em"; + + cols.push(separator); + } else { + throw new ParseError( + "Invalid separator type: " + colDescr.separator); + } + + colDescrNum++; + colDescr = colDescriptions[colDescrNum] || {}; + firstSeparator = false; + } + + if (c >= nc) { + continue; + } + + var sepwidth; + if (c > 0 || group.value.hskipBeforeAndAfter) { + sepwidth = utils.deflt(colDescr.pregap, arraycolsep); + if (sepwidth !== 0) { + colSep = makeSpan(["arraycolsep"], []); + colSep.style.width = sepwidth + "em"; + cols.push(colSep); + } + } + + var col = []; + for (r = 0; r < nr; ++r) { + var row = body[r]; + var elem = row[c]; + if (!elem) { + continue; + } + var shift = row.pos - offset; + elem.depth = row.depth; + elem.height = row.height; + col.push({type: "elem", elem: elem, shift: shift}); + } + + col = buildCommon.makeVList(col, "individualShift", null, options); + col = makeSpan( + ["col-align-" + (colDescr.align || "c")], + [col]); + cols.push(col); + + if (c < nc - 1 || group.value.hskipBeforeAndAfter) { + sepwidth = utils.deflt(colDescr.postgap, arraycolsep); + if (sepwidth !== 0) { + colSep = makeSpan(["arraycolsep"], []); + colSep.style.width = sepwidth + "em"; + cols.push(colSep); + } + } + } + body = makeSpan(["mtable"], cols); + return makeSpan(["mord"], [body], options); +}; + +groupTypes.spacing = function(group, options) { + if (group.value === "\\ " || group.value === "\\space" || + group.value === " " || group.value === "~") { + // Spaces are generated by adding an actual space. Each of these + // things has an entry in the symbols table, so these will be turned + // into appropriate outputs. + if (group.mode === "text") { + return buildCommon.makeOrd(group, options, "textord"); + } else { + return makeSpan(["mspace"], + [buildCommon.mathsym(group.value, group.mode, options)], + options); + } + } else { + // Other kinds of spaces are of arbitrary width. We use CSS to + // generate these. + return makeSpan( + ["mspace", + buildCommon.spacingFunctions[group.value].className], + [], options); + } +}; + +groupTypes.llap = function(group, options) { + var inner = makeSpan( + ["inner"], [buildGroup(group.value.body, options.reset())]); + var fix = makeSpan(["fix"], []); + return makeSpan( + ["mord", "llap", options.style.cls()], [inner, fix], options); +}; + +groupTypes.rlap = function(group, options) { + var inner = makeSpan( + ["inner"], [buildGroup(group.value.body, options.reset())]); + var fix = makeSpan(["fix"], []); + return makeSpan( + ["mord", "rlap", options.style.cls()], [inner, fix], options); +}; + +groupTypes.op = function(group, options) { + // Operators are handled in the TeXbook pg. 443-444, rule 13(a). + var supGroup; + var subGroup; + var hasLimits = false; + if (group.type === "supsub") { + // If we have limits, supsub will pass us its group to handle. Pull + // out the superscript and subscript and set the group to the op in + // its base. + supGroup = group.value.sup; + subGroup = group.value.sub; + group = group.value.base; + hasLimits = true; + } + + var style = options.style; + + // Most operators have a large successor symbol, but these don't. + var noSuccessor = [ + "\\smallint" + ]; + + var large = false; + if (style.size === Style.DISPLAY.size && + group.value.symbol && + !utils.contains(noSuccessor, group.value.body)) { + + // Most symbol operators get larger in displaystyle (rule 13) + large = true; + } + + var base; + var baseShift = 0; + var slant = 0; + if (group.value.symbol) { + // If this is a symbol, create the symbol. + var fontName = large ? "Size2-Regular" : "Size1-Regular"; + base = buildCommon.makeSymbol( + group.value.body, fontName, "math", options, + ["mop", "op-symbol", large ? "large-op" : "small-op"]); + + // Shift the symbol so its center lies on the axis (rule 13). It + // appears that our fonts have the centers of the symbols already + // almost on the axis, so these numbers are very small. Note we + // don't actually apply this here, but instead it is used either in + // the vlist creation or separately when there are no limits. + baseShift = (base.height - base.depth) / 2 - + style.metrics.axisHeight * style.sizeMultiplier; + + // The slant of the symbol is just its italic correction. + slant = base.italic; + } else if (group.value.value) { + // If this is a list, compose that list. + var inner = buildExpression(group.value.value, options, true); + + base = makeSpan(["mop"], inner, options); + } else { + // Otherwise, this is a text operator. Build the text from the + // operator's name. + // TODO(emily): Add a space in the middle of some of these + // operators, like \limsup + var output = []; + for (var i = 1; i < group.value.body.length; i++) { + output.push(buildCommon.mathsym(group.value.body[i], group.mode)); + } + base = makeSpan(["mop"], output, options); + } + + if (hasLimits) { + // IE 8 clips \int if it is in a display: inline-block. We wrap it + // in a new span so it is an inline, and works. + base = makeSpan([], [base]); + + var supmid; + var supKern; + var submid; + var subKern; + var newOptions; + // We manually have to handle the superscripts and subscripts. This, + // aside from the kern calculations, is copied from supsub. + if (supGroup) { + newOptions = options.withStyle(style.sup()); + var sup = buildGroup(supGroup, newOptions); + supmid = makeSpan([style.reset(), style.sup().cls()], + [sup], newOptions); + + supKern = Math.max( + fontMetrics.metrics.bigOpSpacing1, + fontMetrics.metrics.bigOpSpacing3 - sup.depth); + } + + if (subGroup) { + newOptions = options.withStyle(style.sub()); + var sub = buildGroup(subGroup, newOptions); + submid = makeSpan([style.reset(), style.sub().cls()], + [sub], newOptions); + + subKern = Math.max( + fontMetrics.metrics.bigOpSpacing2, + fontMetrics.metrics.bigOpSpacing4 - sub.height); + } + + // Build the final group as a vlist of the possible subscript, base, + // and possible superscript. + var finalGroup; + var top; + var bottom; + if (!supGroup) { + top = base.height - baseShift; + + finalGroup = buildCommon.makeVList([ + {type: "kern", size: fontMetrics.metrics.bigOpSpacing5}, + {type: "elem", elem: submid}, + {type: "kern", size: subKern}, + {type: "elem", elem: base} + ], "top", top, options); + + // Here, we shift the limits by the slant of the symbol. Note + // that we are supposed to shift the limits by 1/2 of the slant, + // but since we are centering the limits adding a full slant of + // margin will shift by 1/2 that. + finalGroup.children[0].style.marginLeft = -slant + "em"; + } else if (!subGroup) { + bottom = base.depth + baseShift; + + finalGroup = buildCommon.makeVList([ + {type: "elem", elem: base}, + {type: "kern", size: supKern}, + {type: "elem", elem: supmid}, + {type: "kern", size: fontMetrics.metrics.bigOpSpacing5} + ], "bottom", bottom, options); + + // See comment above about slants + finalGroup.children[1].style.marginLeft = slant + "em"; + } else if (!supGroup && !subGroup) { + // This case probably shouldn't occur (this would mean the + // supsub was sending us a group with no superscript or + // subscript) but be safe. + return base; + } else { + bottom = fontMetrics.metrics.bigOpSpacing5 + + submid.height + submid.depth + + subKern + + base.depth + baseShift; + + finalGroup = buildCommon.makeVList([ + {type: "kern", size: fontMetrics.metrics.bigOpSpacing5}, + {type: "elem", elem: submid}, + {type: "kern", size: subKern}, + {type: "elem", elem: base}, + {type: "kern", size: supKern}, + {type: "elem", elem: supmid}, + {type: "kern", size: fontMetrics.metrics.bigOpSpacing5} + ], "bottom", bottom, options); + + // See comment above about slants + finalGroup.children[0].style.marginLeft = -slant + "em"; + finalGroup.children[2].style.marginLeft = slant + "em"; + } + + return makeSpan(["mop", "op-limits"], [finalGroup], options); + } else { + if (group.value.symbol) { + base.style.top = baseShift + "em"; + } + + return base; + } +}; + +groupTypes.mod = function(group, options) { + var inner = []; + + if (group.value.modType === "bmod") { + // “\nonscript\mskip-\medmuskip\mkern5mu” + if (!options.style.isTight()) { + inner.push(makeSpan( + ["mspace", "negativemediumspace"], [], options)); + } + inner.push(makeSpan(["mspace", "thickspace"], [], options)); + } else if (options.style.size === Style.DISPLAY.size) { + inner.push(makeSpan(["mspace", "quad"], [], options)); + } else if (group.value.modType === "mod") { + inner.push(makeSpan(["mspace", "twelvemuspace"], [], options)); + } else { + inner.push(makeSpan(["mspace", "eightmuspace"], [], options)); + } + + if (group.value.modType === "pod" || group.value.modType === "pmod") { + inner.push(buildCommon.mathsym("(", group.mode)); + } + + if (group.value.modType !== "pod") { + var modInner = [ + buildCommon.mathsym("m", group.mode), + buildCommon.mathsym("o", group.mode), + buildCommon.mathsym("d", group.mode)]; + if (group.value.modType === "bmod") { + inner.push(makeSpan(["mbin"], modInner, options)); + // “\mkern5mu\nonscript\mskip-\medmuskip” + inner.push(makeSpan(["mspace", "thickspace"], [], options)); + if (!options.style.isTight()) { + inner.push(makeSpan( + ["mspace", "negativemediumspace"], [], options)); + } + } else { + Array.prototype.push.apply(inner, modInner); + inner.push(makeSpan(["mspace", "sixmuspace"], [], options)); + } + } + + if (group.value.value) { + Array.prototype.push.apply(inner, + buildExpression(group.value.value, options, false)); + } + + if (group.value.modType === "pod" || group.value.modType === "pmod") { + inner.push(buildCommon.mathsym(")", group.mode)); + } + + return buildCommon.makeFragment(inner); +}; + +groupTypes.katex = function(group, options) { + // The KaTeX logo. The offsets for the K and a were chosen to look + // good, but the offsets for the T, E, and X were taken from the + // definition of \TeX in TeX (see TeXbook pg. 356) + var k = makeSpan( + ["k"], [buildCommon.mathsym("K", group.mode)], options); + var a = makeSpan( + ["a"], [buildCommon.mathsym("A", group.mode)], options); + + a.height = (a.height + 0.2) * 0.75; + a.depth = (a.height - 0.2) * 0.75; + + var t = makeSpan( + ["t"], [buildCommon.mathsym("T", group.mode)], options); + var e = makeSpan( + ["e"], [buildCommon.mathsym("E", group.mode)], options); + + e.height = (e.height - 0.2155); + e.depth = (e.depth + 0.2155); + + var x = makeSpan( + ["x"], [buildCommon.mathsym("X", group.mode)], options); + + return makeSpan( + ["mord", "katex-logo"], [k, a, t, e, x], options); +}; + +groupTypes.overline = function(group, options) { + // Overlines are handled in the TeXbook pg 443, Rule 9. + var style = options.style; + + // Build the inner group in the cramped style. + var innerGroup = buildGroup(group.value.body, + options.withStyle(style.cramp())); + + var ruleWidth = fontMetrics.metrics.defaultRuleThickness / + style.sizeMultiplier; + + // Create the line above the body + var line = makeSpan( + [style.reset(), Style.TEXT.cls(), "overline-line"]); + line.height = ruleWidth; + line.maxFontSize = 1.0; + + // Generate the vlist, with the appropriate kerns + var vlist = buildCommon.makeVList([ + {type: "elem", elem: innerGroup}, + {type: "kern", size: 3 * ruleWidth}, + {type: "elem", elem: line}, + {type: "kern", size: ruleWidth} + ], "firstBaseline", null, options); + + return makeSpan(["mord", "overline"], [vlist], options); +}; + +groupTypes.underline = function(group, options) { + // Underlines are handled in the TeXbook pg 443, Rule 10. + var style = options.style; + + // Build the inner group. + var innerGroup = buildGroup(group.value.body, options); + + var ruleWidth = fontMetrics.metrics.defaultRuleThickness / + style.sizeMultiplier; + + // Create the line above the body + var line = makeSpan([style.reset(), Style.TEXT.cls(), "underline-line"]); + line.height = ruleWidth; + line.maxFontSize = 1.0; + + // Generate the vlist, with the appropriate kerns + var vlist = buildCommon.makeVList([ + {type: "kern", size: ruleWidth}, + {type: "elem", elem: line}, + {type: "kern", size: 3 * ruleWidth}, + {type: "elem", elem: innerGroup} + ], "top", innerGroup.height, options); + + return makeSpan(["mord", "underline"], [vlist], options); +}; + +groupTypes.sqrt = function(group, options) { + // Square roots are handled in the TeXbook pg. 443, Rule 11. + var style = options.style; + + // First, we do the same steps as in overline to build the inner group + // and line + var inner = buildGroup(group.value.body, options.withStyle(style.cramp())); + + var ruleWidth = fontMetrics.metrics.defaultRuleThickness / + style.sizeMultiplier; + + var line = makeSpan( + [style.reset(), Style.TEXT.cls(), "sqrt-line"], [], + options); + line.height = ruleWidth; + line.maxFontSize = 1.0; + + var phi = ruleWidth; + if (style.id < Style.TEXT.id) { + phi = style.metrics.xHeight; + } + + // Calculate the clearance between the body and line + var lineClearance = ruleWidth + phi / 4; + + var innerHeight = (inner.height + inner.depth) * style.sizeMultiplier; + var minDelimiterHeight = innerHeight + lineClearance + ruleWidth; + + // Create a \surd delimiter of the required minimum size + var delim = makeSpan(["sqrt-sign"], [ + delimiter.customSizedDelim("\\surd", minDelimiterHeight, + false, options, group.mode)], + options); + + var delimDepth = (delim.height + delim.depth) - ruleWidth; + + // Adjust the clearance based on the delimiter size + if (delimDepth > inner.height + inner.depth + lineClearance) { + lineClearance = + (lineClearance + delimDepth - inner.height - inner.depth) / 2; + } + + // Shift the delimiter so that its top lines up with the top of the line + var delimShift = -(inner.height + lineClearance + ruleWidth) + delim.height; + delim.style.top = delimShift + "em"; + delim.height -= delimShift; + delim.depth += delimShift; + + // We add a special case here, because even when `inner` is empty, we + // still get a line. So, we use a simple heuristic to decide if we + // should omit the body entirely. (note this doesn't work for something + // like `\sqrt{\rlap{x}}`, but if someone is doing that they deserve for + // it not to work. + var body; + if (inner.height === 0 && inner.depth === 0) { + body = makeSpan(); + } else { + body = buildCommon.makeVList([ + {type: "elem", elem: inner}, + {type: "kern", size: lineClearance}, + {type: "elem", elem: line}, + {type: "kern", size: ruleWidth} + ], "firstBaseline", null, options); + } + + if (!group.value.index) { + return makeSpan(["mord", "sqrt"], [delim, body], options); + } else { + // Handle the optional root index + + // The index is always in scriptscript style + var newOptions = options.withStyle(Style.SCRIPTSCRIPT); + var root = buildGroup(group.value.index, newOptions); + var rootWrap = makeSpan( + [style.reset(), Style.SCRIPTSCRIPT.cls()], + [root], + newOptions); + + // Figure out the height and depth of the inner part + var innerRootHeight = Math.max(delim.height, body.height); + var innerRootDepth = Math.max(delim.depth, body.depth); + + // The amount the index is shifted by. This is taken from the TeX + // source, in the definition of `\r@@t`. + var toShift = 0.6 * (innerRootHeight - innerRootDepth); + + // Build a VList with the superscript shifted up correctly + var rootVList = buildCommon.makeVList( + [{type: "elem", elem: rootWrap}], + "shift", -toShift, options); + // Add a class surrounding it so we can add on the appropriate + // kerning + var rootVListWrap = makeSpan(["root"], [rootVList]); + + return makeSpan(["mord", "sqrt"], + [rootVListWrap, delim, body], options); + } +}; + +groupTypes.sizing = function(group, options) { + // Handle sizing operators like \Huge. Real TeX doesn't actually allow + // these functions inside of math expressions, so we do some special + // handling. + var inner = buildExpression(group.value.value, + options.withSize(group.value.size), false); + + // Compute the correct maxFontSize. + var style = options.style; + var fontSize = buildCommon.sizingMultiplier[group.value.size]; + fontSize = fontSize * style.sizeMultiplier; + + // Add size-resetting classes to the inner list and set maxFontSize + // manually. Handle nested size changes. + for (var i = 0; i < inner.length; i++) { + var pos = utils.indexOf(inner[i].classes, "sizing"); + if (pos < 0) { + inner[i].classes.push("sizing", "reset-" + options.size, + group.value.size, style.cls()); + inner[i].maxFontSize = fontSize; + } else if (inner[i].classes[pos + 1] === "reset-" + group.value.size) { + // This is a nested size change: e.g., inner[i] is the "b" in + // `\Huge a \small b`. Override the old size (the `reset-` class) + // but not the new size. + inner[i].classes[pos + 1] = "reset-" + options.size; + } + } + + return buildCommon.makeFragment(inner); +}; + +groupTypes.styling = function(group, options) { + // Style changes are handled in the TeXbook on pg. 442, Rule 3. + + // Figure out what style we're changing to. + var styleMap = { + "display": Style.DISPLAY, + "text": Style.TEXT, + "script": Style.SCRIPT, + "scriptscript": Style.SCRIPTSCRIPT + }; + + var newStyle = styleMap[group.value.style]; + var newOptions = options.withStyle(newStyle); + + // Build the inner expression in the new style. + var inner = buildExpression( + group.value.value, newOptions, false); + + // Add style-resetting classes to the inner list. Handle nested changes. + for (var i = 0; i < inner.length; i++) { + var pos = utils.indexOf(inner[i].classes, newStyle.reset()); + if (pos < 0) { + inner[i].classes.push(options.style.reset(), newStyle.cls()); + } else { + // This is a nested style change, as `\textstyle a\scriptstyle b`. + // Only override the old style (the reset class). + inner[i].classes[pos] = options.style.reset(); + } + } + + return new buildCommon.makeFragment(inner); +}; + +groupTypes.font = function(group, options) { + var font = group.value.font; + return buildGroup(group.value.body, options.withFont(font)); +}; + +groupTypes.delimsizing = function(group, options) { + var delim = group.value.value; + + if (delim === ".") { + // Empty delimiters still count as elements, even though they don't + // show anything. + return makeSpan([group.value.mclass]); + } + + // Use delimiter.sizedDelim to generate the delimiter. + return delimiter.sizedDelim( + delim, group.value.size, options, group.mode, + [group.value.mclass]); +}; + +groupTypes.leftright = function(group, options) { + // Build the inner expression + var inner = buildExpression(group.value.body, options.reset(), true); + + var innerHeight = 0; + var innerDepth = 0; + var hadMiddle = false; + + // Calculate its height and depth + for (var i = 0; i < inner.length; i++) { + if (inner[i].isMiddle) { + hadMiddle = true; + } else { + innerHeight = Math.max(inner[i].height, innerHeight); + innerDepth = Math.max(inner[i].depth, innerDepth); + } + } + + var style = options.style; + + // The size of delimiters is the same, regardless of what style we are + // in. Thus, to correctly calculate the size of delimiter we need around + // a group, we scale down the inner size based on the size. + innerHeight *= style.sizeMultiplier; + innerDepth *= style.sizeMultiplier; + + var leftDelim; + if (group.value.left === ".") { + // Empty delimiters in \left and \right make null delimiter spaces. + leftDelim = makeNullDelimiter(options, ["mopen"]); + } else { + // Otherwise, use leftRightDelim to generate the correct sized + // delimiter. + leftDelim = delimiter.leftRightDelim( + group.value.left, innerHeight, innerDepth, options, + group.mode, ["mopen"]); + } + // Add it to the beginning of the expression + inner.unshift(leftDelim); + + // Handle middle delimiters + if (hadMiddle) { + for (i = 1; i < inner.length; i++) { + if (inner[i].isMiddle) { + // Apply the options that were active when \middle was called + inner[i] = delimiter.leftRightDelim( + inner[i].isMiddle.value, innerHeight, innerDepth, + inner[i].isMiddle.options, group.mode, []); + } + } + } + + var rightDelim; + // Same for the right delimiter + if (group.value.right === ".") { + rightDelim = makeNullDelimiter(options, ["mclose"]); + } else { + rightDelim = delimiter.leftRightDelim( + group.value.right, innerHeight, innerDepth, options, + group.mode, ["mclose"]); + } + // Add it to the end of the expression. + inner.push(rightDelim); + + return makeSpan( + ["minner", style.cls()], inner, options); +}; + +groupTypes.middle = function(group, options) { + var middleDelim; + if (group.value.value === ".") { + middleDelim = makeNullDelimiter(options, []); + } else { + middleDelim = delimiter.sizedDelim( + group.value.value, 1, options, + group.mode, []); + middleDelim.isMiddle = {value: group.value.value, options: options}; + } + return middleDelim; +}; + +groupTypes.rule = function(group, options) { + // Make an empty span for the rule + var rule = makeSpan(["mord", "rule"], [], options); + var style = options.style; + + // Calculate the shift, width, and height of the rule, and account for units + var shift = 0; + if (group.value.shift) { + shift = calculateSize(group.value.shift, style); + } + + var width = calculateSize(group.value.width, style); + var height = calculateSize(group.value.height, style); + + // The sizes of rules are absolute, so make it larger if we are in a + // smaller style. + shift /= style.sizeMultiplier; + width /= style.sizeMultiplier; + height /= style.sizeMultiplier; + + // Style the rule to the right size + rule.style.borderRightWidth = width + "em"; + rule.style.borderTopWidth = height + "em"; + rule.style.bottom = shift + "em"; + + // Record the height and width + rule.width = width; + rule.height = height + shift; + rule.depth = -shift; + + return rule; +}; + +groupTypes.kern = function(group, options) { + // Make an empty span for the rule + var rule = makeSpan(["mord", "rule"], [], options); + var style = options.style; + + var dimension = 0; + if (group.value.dimension) { + dimension = calculateSize(group.value.dimension, style); + } + + dimension /= style.sizeMultiplier; + + rule.style.marginLeft = dimension + "em"; + + return rule; +}; + +groupTypes.accent = function(group, options) { + // Accents are handled in the TeXbook pg. 443, rule 12. + var base = group.value.base; + var style = options.style; + + var supsubGroup; + if (group.type === "supsub") { + // If our base is a character box, and we have superscripts and + // subscripts, the supsub will defer to us. In particular, we want + // to attach the superscripts and subscripts to the inner body (so + // that the position of the superscripts and subscripts won't be + // affected by the height of the accent). We accomplish this by + // sticking the base of the accent into the base of the supsub, and + // rendering that, while keeping track of where the accent is. + + // The supsub group is the group that was passed in + var supsub = group; + // The real accent group is the base of the supsub group + group = supsub.value.base; + // The character box is the base of the accent group + base = group.value.base; + // Stick the character box into the base of the supsub group + supsub.value.base = base; + + // Rerender the supsub group with its new base, and store that + // result. + supsubGroup = buildGroup( + supsub, options.reset()); + } + + // Build the base group + var body = buildGroup( + base, options.withStyle(style.cramp())); + + // Calculate the skew of the accent. This is based on the line "If the + // nucleus is not a single character, let s = 0; otherwise set s to the + // kern amount for the nucleus followed by the \skewchar of its font." + // Note that our skew metrics are just the kern between each character + // and the skewchar. + var skew; + if (isCharacterBox(base)) { + // If the base is a character box, then we want the skew of the + // innermost character. To do that, we find the innermost character: + var baseChar = getBaseElem(base); + // Then, we render its group to get the symbol inside it + var baseGroup = buildGroup( + baseChar, options.withStyle(style.cramp())); + // Finally, we pull the skew off of the symbol. + skew = baseGroup.skew; + // Note that we now throw away baseGroup, because the layers we + // removed with getBaseElem might contain things like \color which + // we can't get rid of. + // TODO(emily): Find a better way to get the skew + } else { + skew = 0; + } + + // calculate the amount of space between the body and the accent + var clearance = Math.min( + body.height, + style.metrics.xHeight); + + // Build the accent + var accent = buildCommon.makeSymbol( + group.value.accent, "Main-Regular", "math", options); + // Remove the italic correction of the accent, because it only serves to + // shift the accent over to a place we don't want. + accent.italic = 0; + + // The \vec character that the fonts use is a combining character, and + // thus shows up much too far to the left. To account for this, we add a + // specific class which shifts the accent over to where we want it. + // TODO(emily): Fix this in a better way, like by changing the font + var vecClass = group.value.accent === "\\vec" ? "accent-vec" : null; + + var accentBody = makeSpan(["accent-body", vecClass], [ + makeSpan([], [accent])]); + + accentBody = buildCommon.makeVList([ + {type: "elem", elem: body}, + {type: "kern", size: -clearance}, + {type: "elem", elem: accentBody} + ], "firstBaseline", null, options); + + // Shift the accent over by the skew. Note we shift by twice the skew + // because we are centering the accent, so by adding 2*skew to the left, + // we shift it to the right by 1*skew. + accentBody.children[1].style.marginLeft = 2 * skew + "em"; + + var accentWrap = makeSpan(["mord", "accent"], [accentBody], options); + + if (supsubGroup) { + // Here, we replace the "base" child of the supsub with our newly + // generated accent. + supsubGroup.children[0] = accentWrap; + + // Since we don't rerun the height calculation after replacing the + // accent, we manually recalculate height. + supsubGroup.height = Math.max(accentWrap.height, supsubGroup.height); + + // Accents should always be ords, even when their innards are not. + supsubGroup.classes[0] = "mord"; + + return supsubGroup; + } else { + return accentWrap; + } +}; + +groupTypes.phantom = function(group, options) { + var elements = buildExpression( + group.value.value, + options.withPhantom(), + false + ); + + // \phantom isn't supposed to affect the elements it contains. + // See "color" for more details. + return new buildCommon.makeFragment(elements); +}; + +groupTypes.mclass = function(group, options) { + var elements = buildExpression(group.value.value, options, true); + + return makeSpan([group.value.mclass], elements, options); +}; + +/** + * buildGroup is the function that takes a group and calls the correct groupType + * function for it. It also handles the interaction of size and style changes + * between parents and children. + */ +var buildGroup = function(group, options) { + if (!group) { + return makeSpan(); + } + + if (groupTypes[group.type]) { + // Call the groupTypes function + var groupNode = groupTypes[group.type](group, options); + var multiplier; + + // If the style changed between the parent and the current group, + // account for the size difference + if (options.style !== options.parentStyle) { + multiplier = options.style.sizeMultiplier / + options.parentStyle.sizeMultiplier; + + groupNode.height *= multiplier; + groupNode.depth *= multiplier; + } + + // If the size changed between the parent and the current group, account + // for that size difference. + if (options.size !== options.parentSize) { + multiplier = buildCommon.sizingMultiplier[options.size] / + buildCommon.sizingMultiplier[options.parentSize]; + + groupNode.height *= multiplier; + groupNode.depth *= multiplier; + } + + return groupNode; + } else { + throw new ParseError( + "Got group of unknown type: '" + group.type + "'"); + } +}; + +/** + * Take an entire parse tree, and build it into an appropriate set of HTML + * nodes. + */ +var buildHTML = function(tree, options) { + // buildExpression is destructive, so we need to make a clone + // of the incoming tree so that it isn't accidentally changed + tree = JSON.parse(JSON.stringify(tree)); + + // Build the expression contained in the tree + var expression = buildExpression(tree, options, true); + var body = makeSpan(["base", options.style.cls()], expression, options); + + // Add struts, which ensure that the top of the HTML element falls at the + // height of the expression, and the bottom of the HTML element falls at the + // depth of the expression. + var topStrut = makeSpan(["strut"]); + var bottomStrut = makeSpan(["strut", "bottom"]); + + topStrut.style.height = body.height + "em"; + bottomStrut.style.height = (body.height + body.depth) + "em"; + // We'd like to use `vertical-align: top` but in IE 9 this lowers the + // baseline of the box to the bottom of this strut (instead staying in the + // normal place) so we use an absolute value for vertical-align instead + bottomStrut.style.verticalAlign = -body.depth + "em"; + + // Wrap the struts and body together + var htmlNode = makeSpan(["katex-html"], [topStrut, bottomStrut, body]); + + htmlNode.setAttribute("aria-hidden", "true"); + + return htmlNode; +}; + +module.exports = buildHTML; + +},{"./ParseError":6,"./Style":9,"./buildCommon":10,"./delimiter":14,"./domTree":15,"./fontMetrics":17,"./utils":25}],12:[function(require,module,exports){ +/** + * This file converts a parse tree into a cooresponding MathML tree. The main + * entry point is the `buildMathML` function, which takes a parse tree from the + * parser. + */ + +var buildCommon = require("./buildCommon"); +var fontMetrics = require("./fontMetrics"); +var mathMLTree = require("./mathMLTree"); +var ParseError = require("./ParseError"); +var symbols = require("./symbols"); +var utils = require("./utils"); + +var makeSpan = buildCommon.makeSpan; +var fontMap = buildCommon.fontMap; + +/** + * Takes a symbol and converts it into a MathML text node after performing + * optional replacement from symbols.js. + */ +var makeText = function(text, mode) { + if (symbols[mode][text] && symbols[mode][text].replace) { + text = symbols[mode][text].replace; + } + + return new mathMLTree.TextNode(text); +}; + +/** + * Returns the math variant as a string or null if none is required. + */ +var getVariant = function(group, options) { + var font = options.font; + if (!font) { + return null; + } + + var mode = group.mode; + if (font === "mathit") { + return "italic"; + } + + var value = group.value; + if (utils.contains(["\\imath", "\\jmath"], value)) { + return null; + } + + if (symbols[mode][value] && symbols[mode][value].replace) { + value = symbols[mode][value].replace; + } + + var fontName = fontMap[font].fontName; + if (fontMetrics.getCharacterMetrics(value, fontName)) { + return fontMap[options.font].variant; + } + + return null; +}; + +/** + * Functions for handling the different types of groups found in the parse + * tree. Each function should take a parse group and return a MathML node. + */ +var groupTypes = {}; + +groupTypes.mathord = function(group, options) { + var node = new mathMLTree.MathNode( + "mi", + [makeText(group.value, group.mode)]); + + var variant = getVariant(group, options); + if (variant) { + node.setAttribute("mathvariant", variant); + } + return node; +}; + +groupTypes.textord = function(group, options) { + var text = makeText(group.value, group.mode); + + var variant = getVariant(group, options) || "normal"; + + var node; + if (/[0-9]/.test(group.value)) { + // TODO(kevinb) merge adjacent nodes + // do it as a post processing step + node = new mathMLTree.MathNode("mn", [text]); + if (options.font) { + node.setAttribute("mathvariant", variant); + } + } else { + node = new mathMLTree.MathNode("mi", [text]); + node.setAttribute("mathvariant", variant); + } + + return node; +}; + +groupTypes.bin = function(group) { + var node = new mathMLTree.MathNode( + "mo", [makeText(group.value, group.mode)]); + + return node; +}; + +groupTypes.rel = function(group) { + var node = new mathMLTree.MathNode( + "mo", [makeText(group.value, group.mode)]); + + return node; +}; + +groupTypes.open = function(group) { + var node = new mathMLTree.MathNode( + "mo", [makeText(group.value, group.mode)]); + + return node; +}; + +groupTypes.close = function(group) { + var node = new mathMLTree.MathNode( + "mo", [makeText(group.value, group.mode)]); + + return node; +}; + +groupTypes.inner = function(group) { + var node = new mathMLTree.MathNode( + "mo", [makeText(group.value, group.mode)]); + + return node; +}; + +groupTypes.punct = function(group) { + var node = new mathMLTree.MathNode( + "mo", [makeText(group.value, group.mode)]); + + node.setAttribute("separator", "true"); + + return node; +}; + +groupTypes.ordgroup = function(group, options) { + var inner = buildExpression(group.value, options); + + var node = new mathMLTree.MathNode("mrow", inner); + + return node; +}; + +groupTypes.text = function(group, options) { + var inner = buildExpression(group.value.body, options); + + var node = new mathMLTree.MathNode("mtext", inner); + + return node; +}; + +groupTypes.color = function(group, options) { + var inner = buildExpression(group.value.value, options); + + var node = new mathMLTree.MathNode("mstyle", inner); + + node.setAttribute("mathcolor", group.value.color); + + return node; +}; + +groupTypes.supsub = function(group, options) { + var children = [buildGroup(group.value.base, options)]; + + if (group.value.sub) { + children.push(buildGroup(group.value.sub, options)); + } + + if (group.value.sup) { + children.push(buildGroup(group.value.sup, options)); + } + + var nodeType; + if (!group.value.sub) { + nodeType = "msup"; + } else if (!group.value.sup) { + nodeType = "msub"; + } else { + nodeType = "msubsup"; + } + + var node = new mathMLTree.MathNode(nodeType, children); + + return node; +}; + +groupTypes.genfrac = function(group, options) { + var node = new mathMLTree.MathNode( + "mfrac", + [buildGroup(group.value.numer, options), + buildGroup(group.value.denom, options)]); + + if (!group.value.hasBarLine) { + node.setAttribute("linethickness", "0px"); + } + + if (group.value.leftDelim != null || group.value.rightDelim != null) { + var withDelims = []; + + if (group.value.leftDelim != null) { + var leftOp = new mathMLTree.MathNode( + "mo", [new mathMLTree.TextNode(group.value.leftDelim)]); + + leftOp.setAttribute("fence", "true"); + + withDelims.push(leftOp); + } + + withDelims.push(node); + + if (group.value.rightDelim != null) { + var rightOp = new mathMLTree.MathNode( + "mo", [new mathMLTree.TextNode(group.value.rightDelim)]); + + rightOp.setAttribute("fence", "true"); + + withDelims.push(rightOp); + } + + var outerNode = new mathMLTree.MathNode("mrow", withDelims); + + return outerNode; + } + + return node; +}; + +groupTypes.array = function(group, options) { + return new mathMLTree.MathNode( + "mtable", group.value.body.map(function(row) { + return new mathMLTree.MathNode( + "mtr", row.map(function(cell) { + return new mathMLTree.MathNode( + "mtd", [buildGroup(cell, options)]); + })); + })); +}; + +groupTypes.sqrt = function(group, options) { + var node; + if (group.value.index) { + node = new mathMLTree.MathNode( + "mroot", [ + buildGroup(group.value.body, options), + buildGroup(group.value.index, options) + ]); + } else { + node = new mathMLTree.MathNode( + "msqrt", [buildGroup(group.value.body, options)]); + } + + return node; +}; + +groupTypes.leftright = function(group, options) { + var inner = buildExpression(group.value.body, options); + + if (group.value.left !== ".") { + var leftNode = new mathMLTree.MathNode( + "mo", [makeText(group.value.left, group.mode)]); + + leftNode.setAttribute("fence", "true"); + + inner.unshift(leftNode); + } + + if (group.value.right !== ".") { + var rightNode = new mathMLTree.MathNode( + "mo", [makeText(group.value.right, group.mode)]); + + rightNode.setAttribute("fence", "true"); + + inner.push(rightNode); + } + + var outerNode = new mathMLTree.MathNode("mrow", inner); + + return outerNode; +}; + +groupTypes.middle = function(group, options) { + var middleNode = new mathMLTree.MathNode( + "mo", [makeText(group.value.middle, group.mode)]); + middleNode.setAttribute("fence", "true"); + return middleNode; +}; + +groupTypes.accent = function(group, options) { + var accentNode = new mathMLTree.MathNode( + "mo", [makeText(group.value.accent, group.mode)]); + + var node = new mathMLTree.MathNode( + "mover", + [buildGroup(group.value.base, options), + accentNode]); + + node.setAttribute("accent", "true"); + + return node; +}; + +groupTypes.spacing = function(group) { + var node; + + if (group.value === "\\ " || group.value === "\\space" || + group.value === " " || group.value === "~") { + node = new mathMLTree.MathNode( + "mtext", [new mathMLTree.TextNode("\u00a0")]); + } else { + node = new mathMLTree.MathNode("mspace"); + + node.setAttribute( + "width", buildCommon.spacingFunctions[group.value].size); + } + + return node; +}; + +groupTypes.op = function(group, options) { + var node; + + // TODO(emily): handle big operators using the `largeop` attribute + + if (group.value.symbol) { + // This is a symbol. Just add the symbol. + node = new mathMLTree.MathNode( + "mo", [makeText(group.value.body, group.mode)]); + } else if (group.value.value) { + // This is an operator with children. Add them. + node = new mathMLTree.MathNode( + "mo", buildExpression(group.value.value, options)); + } else { + // This is a text operator. Add all of the characters from the + // operator's name. + // TODO(emily): Add a space in the middle of some of these + // operators, like \limsup. + node = new mathMLTree.MathNode( + "mi", [new mathMLTree.TextNode(group.value.body.slice(1))]); + } + + return node; +}; + +groupTypes.mod = function(group, options) { + var inner = []; + + if (group.value.modType === "pod" || group.value.modType === "pmod") { + inner.push(new mathMLTree.MathNode( + "mo", [makeText("(", group.mode)])); + } + if (group.value.modType !== "pod") { + inner.push(new mathMLTree.MathNode( + "mo", [makeText("mod", group.mode)])); + } + if (group.value.value) { + var space = new mathMLTree.MathNode("mspace"); + space.setAttribute("width", "0.333333em"); + inner.push(space); + inner = inner.concat(buildExpression(group.value.value, options)); + } + if (group.value.modType === "pod" || group.value.modType === "pmod") { + inner.push(new mathMLTree.MathNode( + "mo", [makeText(")", group.mode)])); + } + + return new mathMLTree.MathNode("mo", inner); +}; + +groupTypes.katex = function(group) { + var node = new mathMLTree.MathNode( + "mtext", [new mathMLTree.TextNode("KaTeX")]); + + return node; +}; + +groupTypes.font = function(group, options) { + var font = group.value.font; + return buildGroup(group.value.body, options.withFont(font)); +}; + +groupTypes.delimsizing = function(group) { + var children = []; + + if (group.value.value !== ".") { + children.push(makeText(group.value.value, group.mode)); + } + + var node = new mathMLTree.MathNode("mo", children); + + if (group.value.mclass === "mopen" || + group.value.mclass === "mclose") { + // Only some of the delimsizing functions act as fences, and they + // return "mopen" or "mclose" mclass. + node.setAttribute("fence", "true"); + } else { + // Explicitly disable fencing if it's not a fence, to override the + // defaults. + node.setAttribute("fence", "false"); + } + + return node; +}; + +groupTypes.styling = function(group, options) { + var inner = buildExpression(group.value.value, options); + + var node = new mathMLTree.MathNode("mstyle", inner); + + var styleAttributes = { + "display": ["0", "true"], + "text": ["0", "false"], + "script": ["1", "false"], + "scriptscript": ["2", "false"] + }; + + var attr = styleAttributes[group.value.style]; + + node.setAttribute("scriptlevel", attr[0]); + node.setAttribute("displaystyle", attr[1]); + + return node; +}; + +groupTypes.sizing = function(group, options) { + var inner = buildExpression(group.value.value, options); + + var node = new mathMLTree.MathNode("mstyle", inner); + + // TODO(emily): This doesn't produce the correct size for nested size + // changes, because we don't keep state of what style we're currently + // in, so we can't reset the size to normal before changing it. Now + // that we're passing an options parameter we should be able to fix + // this. + node.setAttribute( + "mathsize", buildCommon.sizingMultiplier[group.value.size] + "em"); + + return node; +}; + +groupTypes.overline = function(group, options) { + var operator = new mathMLTree.MathNode( + "mo", [new mathMLTree.TextNode("\u203e")]); + operator.setAttribute("stretchy", "true"); + + var node = new mathMLTree.MathNode( + "mover", + [buildGroup(group.value.body, options), + operator]); + node.setAttribute("accent", "true"); + + return node; +}; + +groupTypes.underline = function(group, options) { + var operator = new mathMLTree.MathNode( + "mo", [new mathMLTree.TextNode("\u203e")]); + operator.setAttribute("stretchy", "true"); + + var node = new mathMLTree.MathNode( + "munder", + [buildGroup(group.value.body, options), + operator]); + node.setAttribute("accentunder", "true"); + + return node; +}; + +groupTypes.rule = function(group) { + // TODO(emily): Figure out if there's an actual way to draw black boxes + // in MathML. + var node = new mathMLTree.MathNode("mrow"); + + return node; +}; + +groupTypes.kern = function(group) { + // TODO(kevin): Figure out if there's a way to add space in MathML + var node = new mathMLTree.MathNode("mrow"); + + return node; +}; + +groupTypes.llap = function(group, options) { + var node = new mathMLTree.MathNode( + "mpadded", [buildGroup(group.value.body, options)]); + + node.setAttribute("lspace", "-1width"); + node.setAttribute("width", "0px"); + + return node; +}; + +groupTypes.rlap = function(group, options) { + var node = new mathMLTree.MathNode( + "mpadded", [buildGroup(group.value.body, options)]); + + node.setAttribute("width", "0px"); + + return node; +}; + +groupTypes.phantom = function(group, options) { + var inner = buildExpression(group.value.value, options); + return new mathMLTree.MathNode("mphantom", inner); +}; + +groupTypes.mclass = function(group, options) { + var inner = buildExpression(group.value.value, options); + return new mathMLTree.MathNode("mstyle", inner); +}; + +/** + * Takes a list of nodes, builds them, and returns a list of the generated + * MathML nodes. A little simpler than the HTML version because we don't do any + * previous-node handling. + */ +var buildExpression = function(expression, options) { + var groups = []; + for (var i = 0; i < expression.length; i++) { + var group = expression[i]; + groups.push(buildGroup(group, options)); + } + return groups; +}; + +/** + * Takes a group from the parser and calls the appropriate groupTypes function + * on it to produce a MathML node. + */ +var buildGroup = function(group, options) { + if (!group) { + return new mathMLTree.MathNode("mrow"); + } + + if (groupTypes[group.type]) { + // Call the groupTypes function + return groupTypes[group.type](group, options); + } else { + throw new ParseError( + "Got group of unknown type: '" + group.type + "'"); + } +}; + +/** + * Takes a full parse tree and settings and builds a MathML representation of + * it. In particular, we put the elements from building the parse tree into a + * tag so we can also include that TeX source as an annotation. + * + * Note that we actually return a domTree element with a `` inside it so + * we can do appropriate styling. + */ +var buildMathML = function(tree, texExpression, options) { + var expression = buildExpression(tree, options); + + // Wrap up the expression in an mrow so it is presented in the semantics + // tag correctly. + var wrapper = new mathMLTree.MathNode("mrow", expression); + + // Build a TeX annotation of the source + var annotation = new mathMLTree.MathNode( + "annotation", [new mathMLTree.TextNode(texExpression)]); + + annotation.setAttribute("encoding", "application/x-tex"); + + var semantics = new mathMLTree.MathNode( + "semantics", [wrapper, annotation]); + + var math = new mathMLTree.MathNode("math", [semantics]); + + // You can't style nodes, so we wrap the node in a span. + return makeSpan(["katex-mathml"], [math]); +}; + +module.exports = buildMathML; + +},{"./ParseError":6,"./buildCommon":10,"./fontMetrics":17,"./mathMLTree":20,"./symbols":23,"./utils":25}],13:[function(require,module,exports){ +var buildHTML = require("./buildHTML"); +var buildMathML = require("./buildMathML"); +var buildCommon = require("./buildCommon"); +var Options = require("./Options"); +var Settings = require("./Settings"); +var Style = require("./Style"); + +var makeSpan = buildCommon.makeSpan; + +var buildTree = function(tree, expression, settings) { + settings = settings || new Settings({}); + + var startStyle = Style.TEXT; + if (settings.displayMode) { + startStyle = Style.DISPLAY; + } + + // Setup the default options + var options = new Options({ + style: startStyle, + size: "size5" + }); + + // `buildHTML` sometimes messes with the parse tree (like turning bins -> + // ords), so we build the MathML version first. + var mathMLNode = buildMathML(tree, expression, options); + var htmlNode = buildHTML(tree, options); + + var katexNode = makeSpan(["katex"], [ + mathMLNode, htmlNode + ]); + + if (settings.displayMode) { + return makeSpan(["katex-display"], [katexNode]); + } else { + return katexNode; + } +}; + +module.exports = buildTree; + +},{"./Options":5,"./Settings":8,"./Style":9,"./buildCommon":10,"./buildHTML":11,"./buildMathML":12}],14:[function(require,module,exports){ +/** + * This file deals with creating delimiters of various sizes. The TeXbook + * discusses these routines on page 441-442, in the "Another subroutine sets box + * x to a specified variable delimiter" paragraph. + * + * There are three main routines here. `makeSmallDelim` makes a delimiter in the + * normal font, but in either text, script, or scriptscript style. + * `makeLargeDelim` makes a delimiter in textstyle, but in one of the Size1, + * Size2, Size3, or Size4 fonts. `makeStackedDelim` makes a delimiter out of + * smaller pieces that are stacked on top of one another. + * + * The functions take a parameter `center`, which determines if the delimiter + * should be centered around the axis. + * + * Then, there are three exposed functions. `sizedDelim` makes a delimiter in + * one of the given sizes. This is used for things like `\bigl`. + * `customSizedDelim` makes a delimiter with a given total height+depth. It is + * called in places like `\sqrt`. `leftRightDelim` makes an appropriate + * delimiter which surrounds an expression of a given height an depth. It is + * used in `\left` and `\right`. + */ + +var ParseError = require("./ParseError"); +var Style = require("./Style"); + +var buildCommon = require("./buildCommon"); +var fontMetrics = require("./fontMetrics"); +var symbols = require("./symbols"); +var utils = require("./utils"); + +var makeSpan = buildCommon.makeSpan; + +/** + * Get the metrics for a given symbol and font, after transformation (i.e. + * after following replacement from symbols.js) + */ +var getMetrics = function(symbol, font) { + if (symbols.math[symbol] && symbols.math[symbol].replace) { + return fontMetrics.getCharacterMetrics( + symbols.math[symbol].replace, font); + } else { + return fontMetrics.getCharacterMetrics( + symbol, font); + } +}; + +/** + * Builds a symbol in the given font size (note size is an integer) + */ +var mathrmSize = function(value, size, mode, options) { + return buildCommon.makeSymbol(value, "Size" + size + "-Regular", + mode, options); +}; + +/** + * Puts a delimiter span in a given style, and adds appropriate height, depth, + * and maxFontSizes. + */ +var styleWrap = function(delim, toStyle, options, classes) { + classes = classes || []; + var span = makeSpan( + classes.concat(["style-wrap", options.style.reset(), toStyle.cls()]), + [delim], options); + + var multiplier = toStyle.sizeMultiplier / options.style.sizeMultiplier; + + span.height *= multiplier; + span.depth *= multiplier; + span.maxFontSize = toStyle.sizeMultiplier; + + return span; +}; + +/** + * Makes a small delimiter. This is a delimiter that comes in the Main-Regular + * font, but is restyled to either be in textstyle, scriptstyle, or + * scriptscriptstyle. + */ +var makeSmallDelim = function(delim, style, center, options, mode, classes) { + var text = buildCommon.makeSymbol(delim, "Main-Regular", mode, options); + + var span = styleWrap(text, style, options, classes); + + if (center) { + var shift = + (1 - options.style.sizeMultiplier / style.sizeMultiplier) * + options.style.metrics.axisHeight; + + span.style.top = shift + "em"; + span.height -= shift; + span.depth += shift; + } + + return span; +}; + +/** + * Makes a large delimiter. This is a delimiter that comes in the Size1, Size2, + * Size3, or Size4 fonts. It is always rendered in textstyle. + */ +var makeLargeDelim = function(delim, size, center, options, mode, classes) { + var inner = mathrmSize(delim, size, mode, options); + + var span = styleWrap( + makeSpan(["delimsizing", "size" + size], [inner], options), + Style.TEXT, options, classes); + + if (center) { + var shift = (1 - options.style.sizeMultiplier) * + options.style.metrics.axisHeight; + + span.style.top = shift + "em"; + span.height -= shift; + span.depth += shift; + } + + return span; +}; + +/** + * Make an inner span with the given offset and in the given font. This is used + * in `makeStackedDelim` to make the stacking pieces for the delimiter. + */ +var makeInner = function(symbol, font, mode) { + var sizeClass; + // Apply the correct CSS class to choose the right font. + if (font === "Size1-Regular") { + sizeClass = "delim-size1"; + } else if (font === "Size4-Regular") { + sizeClass = "delim-size4"; + } + + var inner = makeSpan( + ["delimsizinginner", sizeClass], + [makeSpan([], [buildCommon.makeSymbol(symbol, font, mode)])]); + + // Since this will be passed into `makeVList` in the end, wrap the element + // in the appropriate tag that VList uses. + return {type: "elem", elem: inner}; +}; + +/** + * Make a stacked delimiter out of a given delimiter, with the total height at + * least `heightTotal`. This routine is mentioned on page 442 of the TeXbook. + */ +var makeStackedDelim = function(delim, heightTotal, center, options, mode, + classes) { + // There are four parts, the top, an optional middle, a repeated part, and a + // bottom. + var top; + var middle; + var repeat; + var bottom; + top = repeat = bottom = delim; + middle = null; + // Also keep track of what font the delimiters are in + var font = "Size1-Regular"; + + // We set the parts and font based on the symbol. Note that we use + // '\u23d0' instead of '|' and '\u2016' instead of '\\|' for the + // repeats of the arrows + if (delim === "\\uparrow") { + repeat = bottom = "\u23d0"; + } else if (delim === "\\Uparrow") { + repeat = bottom = "\u2016"; + } else if (delim === "\\downarrow") { + top = repeat = "\u23d0"; + } else if (delim === "\\Downarrow") { + top = repeat = "\u2016"; + } else if (delim === "\\updownarrow") { + top = "\\uparrow"; + repeat = "\u23d0"; + bottom = "\\downarrow"; + } else if (delim === "\\Updownarrow") { + top = "\\Uparrow"; + repeat = "\u2016"; + bottom = "\\Downarrow"; + } else if (delim === "[" || delim === "\\lbrack") { + top = "\u23a1"; + repeat = "\u23a2"; + bottom = "\u23a3"; + font = "Size4-Regular"; + } else if (delim === "]" || delim === "\\rbrack") { + top = "\u23a4"; + repeat = "\u23a5"; + bottom = "\u23a6"; + font = "Size4-Regular"; + } else if (delim === "\\lfloor") { + repeat = top = "\u23a2"; + bottom = "\u23a3"; + font = "Size4-Regular"; + } else if (delim === "\\lceil") { + top = "\u23a1"; + repeat = bottom = "\u23a2"; + font = "Size4-Regular"; + } else if (delim === "\\rfloor") { + repeat = top = "\u23a5"; + bottom = "\u23a6"; + font = "Size4-Regular"; + } else if (delim === "\\rceil") { + top = "\u23a4"; + repeat = bottom = "\u23a5"; + font = "Size4-Regular"; + } else if (delim === "(") { + top = "\u239b"; + repeat = "\u239c"; + bottom = "\u239d"; + font = "Size4-Regular"; + } else if (delim === ")") { + top = "\u239e"; + repeat = "\u239f"; + bottom = "\u23a0"; + font = "Size4-Regular"; + } else if (delim === "\\{" || delim === "\\lbrace") { + top = "\u23a7"; + middle = "\u23a8"; + bottom = "\u23a9"; + repeat = "\u23aa"; + font = "Size4-Regular"; + } else if (delim === "\\}" || delim === "\\rbrace") { + top = "\u23ab"; + middle = "\u23ac"; + bottom = "\u23ad"; + repeat = "\u23aa"; + font = "Size4-Regular"; + } else if (delim === "\\lgroup") { + top = "\u23a7"; + bottom = "\u23a9"; + repeat = "\u23aa"; + font = "Size4-Regular"; + } else if (delim === "\\rgroup") { + top = "\u23ab"; + bottom = "\u23ad"; + repeat = "\u23aa"; + font = "Size4-Regular"; + } else if (delim === "\\lmoustache") { + top = "\u23a7"; + bottom = "\u23ad"; + repeat = "\u23aa"; + font = "Size4-Regular"; + } else if (delim === "\\rmoustache") { + top = "\u23ab"; + bottom = "\u23a9"; + repeat = "\u23aa"; + font = "Size4-Regular"; + } else if (delim === "\\surd") { + top = "\ue001"; + bottom = "\u23b7"; + repeat = "\ue000"; + font = "Size4-Regular"; + } + + // Get the metrics of the four sections + var topMetrics = getMetrics(top, font); + var topHeightTotal = topMetrics.height + topMetrics.depth; + var repeatMetrics = getMetrics(repeat, font); + var repeatHeightTotal = repeatMetrics.height + repeatMetrics.depth; + var bottomMetrics = getMetrics(bottom, font); + var bottomHeightTotal = bottomMetrics.height + bottomMetrics.depth; + var middleHeightTotal = 0; + var middleFactor = 1; + if (middle !== null) { + var middleMetrics = getMetrics(middle, font); + middleHeightTotal = middleMetrics.height + middleMetrics.depth; + middleFactor = 2; // repeat symmetrically above and below middle + } + + // Calcuate the minimal height that the delimiter can have. + // It is at least the size of the top, bottom, and optional middle combined. + var minHeight = topHeightTotal + bottomHeightTotal + middleHeightTotal; + + // Compute the number of copies of the repeat symbol we will need + var repeatCount = Math.ceil( + (heightTotal - minHeight) / (middleFactor * repeatHeightTotal)); + + // Compute the total height of the delimiter including all the symbols + var realHeightTotal = + minHeight + repeatCount * middleFactor * repeatHeightTotal; + + // The center of the delimiter is placed at the center of the axis. Note + // that in this context, "center" means that the delimiter should be + // centered around the axis in the current style, while normally it is + // centered around the axis in textstyle. + var axisHeight = options.style.metrics.axisHeight; + if (center) { + axisHeight *= options.style.sizeMultiplier; + } + // Calculate the depth + var depth = realHeightTotal / 2 - axisHeight; + + // Now, we start building the pieces that will go into the vlist + + // Keep a list of the inner pieces + var inners = []; + + // Add the bottom symbol + inners.push(makeInner(bottom, font, mode)); + + var i; + if (middle === null) { + // Add that many symbols + for (i = 0; i < repeatCount; i++) { + inners.push(makeInner(repeat, font, mode)); + } + } else { + // When there is a middle bit, we need the middle part and two repeated + // sections + for (i = 0; i < repeatCount; i++) { + inners.push(makeInner(repeat, font, mode)); + } + inners.push(makeInner(middle, font, mode)); + for (i = 0; i < repeatCount; i++) { + inners.push(makeInner(repeat, font, mode)); + } + } + + // Add the top symbol + inners.push(makeInner(top, font, mode)); + + // Finally, build the vlist + var inner = buildCommon.makeVList(inners, "bottom", depth, options); + + return styleWrap( + makeSpan(["delimsizing", "mult"], [inner], options), + Style.TEXT, options, classes); +}; + +// There are three kinds of delimiters, delimiters that stack when they become +// too large +var stackLargeDelimiters = [ + "(", ")", "[", "\\lbrack", "]", "\\rbrack", + "\\{", "\\lbrace", "\\}", "\\rbrace", + "\\lfloor", "\\rfloor", "\\lceil", "\\rceil", + "\\surd" +]; + +// delimiters that always stack +var stackAlwaysDelimiters = [ + "\\uparrow", "\\downarrow", "\\updownarrow", + "\\Uparrow", "\\Downarrow", "\\Updownarrow", + "|", "\\|", "\\vert", "\\Vert", + "\\lvert", "\\rvert", "\\lVert", "\\rVert", + "\\lgroup", "\\rgroup", "\\lmoustache", "\\rmoustache" +]; + +// and delimiters that never stack +var stackNeverDelimiters = [ + "<", ">", "\\langle", "\\rangle", "/", "\\backslash", "\\lt", "\\gt" +]; + +// Metrics of the different sizes. Found by looking at TeX's output of +// $\bigl| // \Bigl| \biggl| \Biggl| \showlists$ +// Used to create stacked delimiters of appropriate sizes in makeSizedDelim. +var sizeToMaxHeight = [0, 1.2, 1.8, 2.4, 3.0]; + +/** + * Used to create a delimiter of a specific size, where `size` is 1, 2, 3, or 4. + */ +var makeSizedDelim = function(delim, size, options, mode, classes) { + // < and > turn into \langle and \rangle in delimiters + if (delim === "<" || delim === "\\lt") { + delim = "\\langle"; + } else if (delim === ">" || delim === "\\gt") { + delim = "\\rangle"; + } + + // Sized delimiters are never centered. + if (utils.contains(stackLargeDelimiters, delim) || + utils.contains(stackNeverDelimiters, delim)) { + return makeLargeDelim(delim, size, false, options, mode, classes); + } else if (utils.contains(stackAlwaysDelimiters, delim)) { + return makeStackedDelim( + delim, sizeToMaxHeight[size], false, options, mode, classes); + } else { + throw new ParseError("Illegal delimiter: '" + delim + "'"); + } +}; + +/** + * There are three different sequences of delimiter sizes that the delimiters + * follow depending on the kind of delimiter. This is used when creating custom + * sized delimiters to decide whether to create a small, large, or stacked + * delimiter. + * + * In real TeX, these sequences aren't explicitly defined, but are instead + * defined inside the font metrics. Since there are only three sequences that + * are possible for the delimiters that TeX defines, it is easier to just encode + * them explicitly here. + */ + +// Delimiters that never stack try small delimiters and large delimiters only +var stackNeverDelimiterSequence = [ + {type: "small", style: Style.SCRIPTSCRIPT}, + {type: "small", style: Style.SCRIPT}, + {type: "small", style: Style.TEXT}, + {type: "large", size: 1}, + {type: "large", size: 2}, + {type: "large", size: 3}, + {type: "large", size: 4} +]; + +// Delimiters that always stack try the small delimiters first, then stack +var stackAlwaysDelimiterSequence = [ + {type: "small", style: Style.SCRIPTSCRIPT}, + {type: "small", style: Style.SCRIPT}, + {type: "small", style: Style.TEXT}, + {type: "stack"} +]; + +// Delimiters that stack when large try the small and then large delimiters, and +// stack afterwards +var stackLargeDelimiterSequence = [ + {type: "small", style: Style.SCRIPTSCRIPT}, + {type: "small", style: Style.SCRIPT}, + {type: "small", style: Style.TEXT}, + {type: "large", size: 1}, + {type: "large", size: 2}, + {type: "large", size: 3}, + {type: "large", size: 4}, + {type: "stack"} +]; + +/** + * Get the font used in a delimiter based on what kind of delimiter it is. + */ +var delimTypeToFont = function(type) { + if (type.type === "small") { + return "Main-Regular"; + } else if (type.type === "large") { + return "Size" + type.size + "-Regular"; + } else if (type.type === "stack") { + return "Size4-Regular"; + } +}; + +/** + * Traverse a sequence of types of delimiters to decide what kind of delimiter + * should be used to create a delimiter of the given height+depth. + */ +var traverseSequence = function(delim, height, sequence, options) { + // Here, we choose the index we should start at in the sequences. In smaller + // sizes (which correspond to larger numbers in style.size) we start earlier + // in the sequence. Thus, scriptscript starts at index 3-3=0, script starts + // at index 3-2=1, text starts at 3-1=2, and display starts at min(2,3-0)=2 + var start = Math.min(2, 3 - options.style.size); + for (var i = start; i < sequence.length; i++) { + if (sequence[i].type === "stack") { + // This is always the last delimiter, so we just break the loop now. + break; + } + + var metrics = getMetrics(delim, delimTypeToFont(sequence[i])); + var heightDepth = metrics.height + metrics.depth; + + // Small delimiters are scaled down versions of the same font, so we + // account for the style change size. + + if (sequence[i].type === "small") { + heightDepth *= sequence[i].style.sizeMultiplier; + } + + // Check if the delimiter at this size works for the given height. + if (heightDepth > height) { + return sequence[i]; + } + } + + // If we reached the end of the sequence, return the last sequence element. + return sequence[sequence.length - 1]; +}; + +/** + * Make a delimiter of a given height+depth, with optional centering. Here, we + * traverse the sequences, and create a delimiter that the sequence tells us to. + */ +var makeCustomSizedDelim = function(delim, height, center, options, mode, + classes) { + if (delim === "<" || delim === "\\lt") { + delim = "\\langle"; + } else if (delim === ">" || delim === "\\gt") { + delim = "\\rangle"; + } + + // Decide what sequence to use + var sequence; + if (utils.contains(stackNeverDelimiters, delim)) { + sequence = stackNeverDelimiterSequence; + } else if (utils.contains(stackLargeDelimiters, delim)) { + sequence = stackLargeDelimiterSequence; + } else { + sequence = stackAlwaysDelimiterSequence; + } + + // Look through the sequence + var delimType = traverseSequence(delim, height, sequence, options); + + // Depending on the sequence element we decided on, call the appropriate + // function. + if (delimType.type === "small") { + return makeSmallDelim(delim, delimType.style, center, options, mode, + classes); + } else if (delimType.type === "large") { + return makeLargeDelim(delim, delimType.size, center, options, mode, + classes); + } else if (delimType.type === "stack") { + return makeStackedDelim(delim, height, center, options, mode, classes); + } +}; + +/** + * Make a delimiter for use with `\left` and `\right`, given a height and depth + * of an expression that the delimiters surround. + */ +var makeLeftRightDelim = function(delim, height, depth, options, mode, + classes) { + // We always center \left/\right delimiters, so the axis is always shifted + var axisHeight = + options.style.metrics.axisHeight * options.style.sizeMultiplier; + + // Taken from TeX source, tex.web, function make_left_right + var delimiterFactor = 901; + var delimiterExtend = 5.0 / fontMetrics.metrics.ptPerEm; + + var maxDistFromAxis = Math.max( + height - axisHeight, depth + axisHeight); + + var totalHeight = Math.max( + // In real TeX, calculations are done using integral values which are + // 65536 per pt, or 655360 per em. So, the division here truncates in + // TeX but doesn't here, producing different results. If we wanted to + // exactly match TeX's calculation, we could do + // Math.floor(655360 * maxDistFromAxis / 500) * + // delimiterFactor / 655360 + // (To see the difference, compare + // x^{x^{\left(\rule{0.1em}{0.68em}\right)}} + // in TeX and KaTeX) + maxDistFromAxis / 500 * delimiterFactor, + 2 * maxDistFromAxis - delimiterExtend); + + // Finally, we defer to `makeCustomSizedDelim` with our calculated total + // height + return makeCustomSizedDelim(delim, totalHeight, true, options, mode, + classes); +}; + +module.exports = { + sizedDelim: makeSizedDelim, + customSizedDelim: makeCustomSizedDelim, + leftRightDelim: makeLeftRightDelim +}; + +},{"./ParseError":6,"./Style":9,"./buildCommon":10,"./fontMetrics":17,"./symbols":23,"./utils":25}],15:[function(require,module,exports){ +/** + * These objects store the data about the DOM nodes we create, as well as some + * extra data. They can then be transformed into real DOM nodes with the + * `toNode` function or HTML markup using `toMarkup`. They are useful for both + * storing extra properties on the nodes, as well as providing a way to easily + * work with the DOM. + * + * Similar functions for working with MathML nodes exist in mathMLTree.js. + */ +var unicodeRegexes = require("./unicodeRegexes"); +var utils = require("./utils"); + +/** + * Create an HTML className based on a list of classes. In addition to joining + * with spaces, we also remove null or empty classes. + */ +var createClass = function(classes) { + classes = classes.slice(); + for (var i = classes.length - 1; i >= 0; i--) { + if (!classes[i]) { + classes.splice(i, 1); + } + } + + return classes.join(" "); +}; + +/** + * This node represents a span node, with a className, a list of children, and + * an inline style. It also contains information about its height, depth, and + * maxFontSize. + */ +function span(classes, children, options) { + this.classes = classes || []; + this.children = children || []; + this.height = 0; + this.depth = 0; + this.maxFontSize = 0; + this.style = {}; + this.attributes = {}; + if (options) { + if (options.style.isTight()) { + this.classes.push("mtight"); + } + if (options.getColor()) { + this.style.color = options.getColor(); + } + } +} + +/** + * Sets an arbitrary attribute on the span. Warning: use this wisely. Not all + * browsers support attributes the same, and having too many custom attributes + * is probably bad. + */ +span.prototype.setAttribute = function(attribute, value) { + this.attributes[attribute] = value; +}; + +span.prototype.tryCombine = function(sibling) { + return false; +}; + +/** + * Convert the span into an HTML node + */ +span.prototype.toNode = function() { + var span = document.createElement("span"); + + // Apply the class + span.className = createClass(this.classes); + + // Apply inline styles + for (var style in this.style) { + if (Object.prototype.hasOwnProperty.call(this.style, style)) { + span.style[style] = this.style[style]; + } + } + + // Apply attributes + for (var attr in this.attributes) { + if (Object.prototype.hasOwnProperty.call(this.attributes, attr)) { + span.setAttribute(attr, this.attributes[attr]); + } + } + + // Append the children, also as HTML nodes + for (var i = 0; i < this.children.length; i++) { + span.appendChild(this.children[i].toNode()); + } + + return span; +}; + +/** + * Convert the span into an HTML markup string + */ +span.prototype.toMarkup = function() { + var markup = " 0 + || createClass(this.classes) !== createClass(sibling.classes) + || this.skew !== sibling.skew + || this.maxFontSize !== sibling.maxFontSize) { + return false; + } + for (var style in this.style) { + if (this.style.hasOwnProperty(style) + && this.style[style] !== sibling.style[style]) { + return false; + } + } + for (style in sibling.style) { + if (sibling.style.hasOwnProperty(style) + && this.style[style] !== sibling.style[style]) { + return false; + } + } + this.value += sibling.value; + this.height = Math.max(this.height, sibling.height); + this.depth = Math.max(this.depth, sibling.depth); + this.italic = sibling.italic; + return true; +}; + +/** + * Creates a text node or span from a symbol node. Note that a span is only + * created if it is needed. + */ +symbolNode.prototype.toNode = function() { + var node = document.createTextNode(this.value); + var span = null; + + if (this.italic > 0) { + span = document.createElement("span"); + span.style.marginRight = this.italic + "em"; + } + + if (this.classes.length > 0) { + span = span || document.createElement("span"); + span.className = createClass(this.classes); + } + + for (var style in this.style) { + if (this.style.hasOwnProperty(style)) { + span = span || document.createElement("span"); + span.style[style] = this.style[style]; + } + } + + if (span) { + span.appendChild(node); + return span; + } else { + return node; + } +}; + +/** + * Creates markup for a symbol node. + */ +symbolNode.prototype.toMarkup = function() { + // TODO(alpert): More duplication than I'd like from + // span.prototype.toMarkup and symbolNode.prototype.toNode... + var needsSpan = false; + + var markup = " 0) { + styles += "margin-right:" + this.italic + "em;"; + } + for (var style in this.style) { + if (this.style.hasOwnProperty(style)) { + styles += utils.hyphenate(style) + ":" + this.style[style] + ";"; + } + } + + if (styles) { + needsSpan = true; + markup += " style=\"" + utils.escape(styles) + "\""; + } + + var escaped = utils.escape(this.value); + if (needsSpan) { + markup += ">"; + markup += escaped; + markup += ""; + return markup; + } else { + return escaped; + } +}; + +module.exports = { + span: span, + documentFragment: documentFragment, + symbolNode: symbolNode +}; + +},{"./unicodeRegexes":24,"./utils":25}],16:[function(require,module,exports){ +/* eslint no-constant-condition:0 */ +var parseData = require("./parseData"); +var ParseError = require("./ParseError"); +var Style = require("./Style"); + +var ParseNode = parseData.ParseNode; + +/** + * Parse the body of the environment, with rows delimited by \\ and + * columns delimited by &, and create a nested list in row-major order + * with one group per cell. + */ +function parseArray(parser, result) { + var row = []; + var body = [row]; + var rowGaps = []; + while (true) { + var cell = parser.parseExpression(false, null); + row.push(new ParseNode("ordgroup", cell, parser.mode)); + var next = parser.nextToken.text; + if (next === "&") { + parser.consume(); + } else if (next === "\\end") { + break; + } else if (next === "\\\\" || next === "\\cr") { + var cr = parser.parseFunction(); + rowGaps.push(cr.value.size); + row = []; + body.push(row); + } else { + throw new ParseError("Expected & or \\\\ or \\end", + parser.nextToken); + } + } + result.body = body; + result.rowGaps = rowGaps; + return new ParseNode(result.type, result, parser.mode); +} + +/* + * An environment definition is very similar to a function definition: + * it is declared with a name or a list of names, a set of properties + * and a handler containing the actual implementation. + * + * The properties include: + * - numArgs: The number of arguments after the \begin{name} function. + * - argTypes: (optional) Just like for a function + * - allowedInText: (optional) Whether or not the environment is allowed inside + * text mode (default false) (not enforced yet) + * - numOptionalArgs: (optional) Just like for a function + * A bare number instead of that object indicates the numArgs value. + * + * The handler function will receive two arguments + * - context: information and references provided by the parser + * - args: an array of arguments passed to \begin{name} + * The context contains the following properties: + * - envName: the name of the environment, one of the listed names. + * - parser: the parser object + * - lexer: the lexer object + * - positions: the positions associated with these arguments from args. + * The handler must return a ParseResult. + */ + +function defineEnvironment(names, props, handler) { + if (typeof names === "string") { + names = [names]; + } + if (typeof props === "number") { + props = { numArgs: props }; + } + // Set default values of environments + var data = { + numArgs: props.numArgs || 0, + argTypes: props.argTypes, + greediness: 1, + allowedInText: !!props.allowedInText, + numOptionalArgs: props.numOptionalArgs || 0, + handler: handler + }; + for (var i = 0; i < names.length; ++i) { + module.exports[names[i]] = data; + } +} + +// Arrays are part of LaTeX, defined in lttab.dtx so its documentation +// is part of the source2e.pdf file of LaTeX2e source documentation. +defineEnvironment("array", { + numArgs: 1 +}, function(context, args) { + var colalign = args[0]; + colalign = colalign.value.map ? colalign.value : [colalign]; + var cols = colalign.map(function(node) { + var ca = node.value; + if ("lcr".indexOf(ca) !== -1) { + return { + type: "align", + align: ca + }; + } else if (ca === "|") { + return { + type: "separator", + separator: "|" + }; + } + throw new ParseError( + "Unknown column alignment: " + node.value, + node); + }); + var res = { + type: "array", + cols: cols, + hskipBeforeAndAfter: true // \@preamble in lttab.dtx + }; + res = parseArray(context.parser, res); + return res; +}); + +// The matrix environments of amsmath builds on the array environment +// of LaTeX, which is discussed above. +defineEnvironment([ + "matrix", + "pmatrix", + "bmatrix", + "Bmatrix", + "vmatrix", + "Vmatrix" +], { +}, function(context) { + var delimiters = { + "matrix": null, + "pmatrix": ["(", ")"], + "bmatrix": ["[", "]"], + "Bmatrix": ["\\{", "\\}"], + "vmatrix": ["|", "|"], + "Vmatrix": ["\\Vert", "\\Vert"] + }[context.envName]; + var res = { + type: "array", + hskipBeforeAndAfter: false // \hskip -\arraycolsep in amsmath + }; + res = parseArray(context.parser, res); + if (delimiters) { + res = new ParseNode("leftright", { + body: [res], + left: delimiters[0], + right: delimiters[1] + }, context.mode); + } + return res; +}); + +// A cases environment (in amsmath.sty) is almost equivalent to +// \def\arraystretch{1.2}% +// \left\{\begin{array}{@{}l@{\quad}l@{}} … \end{array}\right. +defineEnvironment("cases", { +}, function(context) { + var res = { + type: "array", + arraystretch: 1.2, + cols: [{ + type: "align", + align: "l", + pregap: 0, + // TODO(kevinb) get the current style. + // For now we use the metrics for TEXT style which is what we were + // doing before. Before attempting to get the current style we + // should look at TeX's behavior especially for \over and matrices. + postgap: Style.TEXT.metrics.quad + }, { + type: "align", + align: "l", + pregap: 0, + postgap: 0 + }] + }; + res = parseArray(context.parser, res); + res = new ParseNode("leftright", { + body: [res], + left: "\\{", + right: "." + }, context.mode); + return res; +}); + +// An aligned environment is like the align* environment +// except it operates within math mode. +// Note that we assume \nomallineskiplimit to be zero, +// so that \strut@ is the same as \strut. +defineEnvironment("aligned", { +}, function(context) { + var res = { + type: "array", + cols: [] + }; + res = parseArray(context.parser, res); + var emptyGroup = new ParseNode("ordgroup", [], context.mode); + var numCols = 0; + res.value.body.forEach(function(row) { + var i; + for (i = 1; i < row.length; i += 2) { + row[i].value.unshift(emptyGroup); + } + if (numCols < row.length) { + numCols = row.length; + } + }); + for (var i = 0; i < numCols; ++i) { + var align = "r"; + var pregap = 0; + if (i % 2 === 1) { + align = "l"; + } else if (i > 0) { + pregap = 2; // one \qquad between columns + } + res.value.cols[i] = { + type: "align", + align: align, + pregap: pregap, + postgap: 0 + }; + } + return res; +}); + +},{"./ParseError":6,"./Style":9,"./parseData":21}],17:[function(require,module,exports){ +/* eslint no-unused-vars:0 */ + +var Style = require("./Style"); +var cjkRegex = require("./unicodeRegexes").cjkRegex; + +/** + * This file contains metrics regarding fonts and individual symbols. The sigma + * and xi variables, as well as the metricMap map contain data extracted from + * TeX, TeX font metrics, and the TTF files. These data are then exposed via the + * `metrics` variable and the getCharacterMetrics function. + */ + +// In TeX, there are actually three sets of dimensions, one for each of +// textstyle, scriptstyle, and scriptscriptstyle. These are provided in the +// the arrays below, in that order. +// +// The font metrics are stored in fonts cmsy10, cmsy7, and cmsy5 respsectively. +// This was determined by running the folllowing script: +// +// latex -interaction=nonstopmode \ +// '\documentclass{article}\usepackage{amsmath}\begin{document}' \ +// '$a$ \expandafter\show\the\textfont2' \ +// '\expandafter\show\the\scriptfont2' \ +// '\expandafter\show\the\scriptscriptfont2' \ +// '\stop' +// +// The metrics themselves were retreived using the following commands: +// +// tftopl cmsy10 +// tftopl cmsy7 +// tftopl cmsy5 +// +// The output of each of these commands is quite lengthy. The only part we +// care about is the FONTDIMEN section. Each value is measured in EMs. +var sigmas = { + slant: [0.250, 0.250, 0.250], // sigma1 + space: [0.000, 0.000, 0.000], // sigma2 + stretch: [0.000, 0.000, 0.000], // sigma3 + shrink: [0.000, 0.000, 0.000], // sigma4 + xHeight: [0.431, 0.431, 0.431], // sigma5 + quad: [1.000, 1.171, 1.472], // sigma6 + extraSpace: [0.000, 0.000, 0.000], // sigma7 + num1: [0.677, 0.732, 0.925], // sigma8 + num2: [0.394, 0.384, 0.387], // sigma9 + num3: [0.444, 0.471, 0.504], // sigma10 + denom1: [0.686, 0.752, 1.025], // sigma11 + denom2: [0.345, 0.344, 0.532], // sigma12 + sup1: [0.413, 0.503, 0.504], // sigma13 + sup2: [0.363, 0.431, 0.404], // sigma14 + sup3: [0.289, 0.286, 0.294], // sigma15 + sub1: [0.150, 0.143, 0.200], // sigma16 + sub2: [0.247, 0.286, 0.400], // sigma17 + supDrop: [0.386, 0.353, 0.494], // sigma18 + subDrop: [0.050, 0.071, 0.100], // sigma19 + delim1: [2.390, 1.700, 1.980], // sigma20 + delim2: [1.010, 1.157, 1.420], // sigma21 + axisHeight: [0.250, 0.250, 0.250] // sigma22 +}; + +// These font metrics are extracted from TeX by using +// \font\a=cmex10 +// \showthe\fontdimenX\a +// where X is the corresponding variable number. These correspond to the font +// parameters of the extension fonts (family 3). See the TeXbook, page 441. +var xi1 = 0; +var xi2 = 0; +var xi3 = 0; +var xi4 = 0; +var xi5 = 0.431; +var xi6 = 1; +var xi7 = 0; +var xi8 = 0.04; +var xi9 = 0.111; +var xi10 = 0.166; +var xi11 = 0.2; +var xi12 = 0.6; +var xi13 = 0.1; + +// This value determines how large a pt is, for metrics which are defined in +// terms of pts. +// This value is also used in katex.less; if you change it make sure the values +// match. +var ptPerEm = 10.0; + +// The space between adjacent `|` columns in an array definition. From +// `\showthe\doublerulesep` in LaTeX. +var doubleRuleSep = 2.0 / ptPerEm; + +/** + * This is just a mapping from common names to real metrics + */ +var metrics = { + defaultRuleThickness: xi8, + bigOpSpacing1: xi9, + bigOpSpacing2: xi10, + bigOpSpacing3: xi11, + bigOpSpacing4: xi12, + bigOpSpacing5: xi13, + ptPerEm: ptPerEm, + doubleRuleSep: doubleRuleSep +}; + +// This map contains a mapping from font name and character code to character +// metrics, including height, depth, italic correction, and skew (kern from the +// character to the corresponding \skewchar) +// This map is generated via `make metrics`. It should not be changed manually. +var metricMap = require("./fontMetricsData"); + +// These are very rough approximations. We default to Times New Roman which +// should have Latin-1 and Cyrillic characters, but may not depending on the +// operating system. The metrics do not account for extra height from the +// accents. In the case of Cyrillic characters which have both ascenders and +// descenders we prefer approximations with ascenders, primarily to prevent +// the fraction bar or root line from intersecting the glyph. +// TODO(kevinb) allow union of multiple glyph metrics for better accuracy. +var extraCharacterMap = { + // Latin-1 + 'À': 'A', + 'Á': 'A', + 'Â': 'A', + 'Ã': 'A', + 'Ä': 'A', + 'Å': 'A', + 'Æ': 'A', + 'Ç': 'C', + 'È': 'E', + 'É': 'E', + 'Ê': 'E', + 'Ë': 'E', + 'Ì': 'I', + 'Í': 'I', + 'Î': 'I', + 'Ï': 'I', + 'Ð': 'D', + 'Ñ': 'N', + 'Ò': 'O', + 'Ó': 'O', + 'Ô': 'O', + 'Õ': 'O', + 'Ö': 'O', + 'Ø': 'O', + 'Ù': 'U', + 'Ú': 'U', + 'Û': 'U', + 'Ü': 'U', + 'Ý': 'Y', + 'Þ': 'o', + 'ß': 'B', + 'à': 'a', + 'á': 'a', + 'â': 'a', + 'ã': 'a', + 'ä': 'a', + 'å': 'a', + 'æ': 'a', + 'ç': 'c', + 'è': 'e', + 'é': 'e', + 'ê': 'e', + 'ë': 'e', + 'ì': 'i', + 'í': 'i', + 'î': 'i', + 'ï': 'i', + 'ð': 'd', + 'ñ': 'n', + 'ò': 'o', + 'ó': 'o', + 'ô': 'o', + 'õ': 'o', + 'ö': 'o', + 'ø': 'o', + 'ù': 'u', + 'ú': 'u', + 'û': 'u', + 'ü': 'u', + 'ý': 'y', + 'þ': 'o', + 'ÿ': 'y', + + // Cyrillic + 'А': 'A', + 'Б': 'B', + 'В': 'B', + 'Г': 'F', + 'Д': 'A', + 'Е': 'E', + 'Ж': 'K', + 'З': '3', + 'И': 'N', + 'Й': 'N', + 'К': 'K', + 'Л': 'N', + 'М': 'M', + 'Н': 'H', + 'О': 'O', + 'П': 'N', + 'Р': 'P', + 'С': 'C', + 'Т': 'T', + 'У': 'y', + 'Ф': 'O', + 'Х': 'X', + 'Ц': 'U', + 'Ч': 'h', + 'Ш': 'W', + 'Щ': 'W', + 'Ъ': 'B', + 'Ы': 'X', + 'Ь': 'B', + 'Э': '3', + 'Ю': 'X', + 'Я': 'R', + 'а': 'a', + 'б': 'b', + 'в': 'a', + 'г': 'r', + 'д': 'y', + 'е': 'e', + 'ж': 'm', + 'з': 'e', + 'и': 'n', + 'й': 'n', + 'к': 'n', + 'л': 'n', + 'м': 'm', + 'н': 'n', + 'о': 'o', + 'п': 'n', + 'р': 'p', + 'с': 'c', + 'т': 'o', + 'у': 'y', + 'ф': 'b', + 'х': 'x', + 'ц': 'n', + 'ч': 'n', + 'ш': 'w', + 'щ': 'w', + 'ъ': 'a', + 'ы': 'm', + 'ь': 'a', + 'э': 'e', + 'ю': 'm', + 'я': 'r' +}; + +/** + * This function is a convenience function for looking up information in the + * metricMap table. It takes a character as a string, and a style. + * + * Note: the `width` property may be undefined if fontMetricsData.js wasn't + * built using `Make extended_metrics`. + */ +var getCharacterMetrics = function(character, style) { + var ch = character.charCodeAt(0); + if (character[0] in extraCharacterMap) { + ch = extraCharacterMap[character[0]].charCodeAt(0); + } else if (cjkRegex.test(character[0])) { + ch = 'M'.charCodeAt(0); + } + var metrics = metricMap[style][ch]; + if (metrics) { + return { + depth: metrics[0], + height: metrics[1], + italic: metrics[2], + skew: metrics[3], + width: metrics[4] + }; + } +}; + +module.exports = { + metrics: metrics, + sigmas: sigmas, + getCharacterMetrics: getCharacterMetrics +}; + +},{"./Style":9,"./fontMetricsData":18,"./unicodeRegexes":24}],18:[function(require,module,exports){ +module.exports = { + "AMS-Regular": { + "65": [0, 0.68889, 0, 0], + "66": [0, 0.68889, 0, 0], + "67": [0, 0.68889, 0, 0], + "68": [0, 0.68889, 0, 0], + "69": [0, 0.68889, 0, 0], + "70": [0, 0.68889, 0, 0], + "71": [0, 0.68889, 0, 0], + "72": [0, 0.68889, 0, 0], + "73": [0, 0.68889, 0, 0], + "74": [0.16667, 0.68889, 0, 0], + "75": [0, 0.68889, 0, 0], + "76": [0, 0.68889, 0, 0], + "77": [0, 0.68889, 0, 0], + "78": [0, 0.68889, 0, 0], + "79": [0.16667, 0.68889, 0, 0], + "80": [0, 0.68889, 0, 0], + "81": [0.16667, 0.68889, 0, 0], + "82": [0, 0.68889, 0, 0], + "83": [0, 0.68889, 0, 0], + "84": [0, 0.68889, 0, 0], + "85": [0, 0.68889, 0, 0], + "86": [0, 0.68889, 0, 0], + "87": [0, 0.68889, 0, 0], + "88": [0, 0.68889, 0, 0], + "89": [0, 0.68889, 0, 0], + "90": [0, 0.68889, 0, 0], + "107": [0, 0.68889, 0, 0], + "165": [0, 0.675, 0.025, 0], + "174": [0.15559, 0.69224, 0, 0], + "240": [0, 0.68889, 0, 0], + "295": [0, 0.68889, 0, 0], + "710": [0, 0.825, 0, 0], + "732": [0, 0.9, 0, 0], + "770": [0, 0.825, 0, 0], + "771": [0, 0.9, 0, 0], + "989": [0.08167, 0.58167, 0, 0], + "1008": [0, 0.43056, 0.04028, 0], + "8245": [0, 0.54986, 0, 0], + "8463": [0, 0.68889, 0, 0], + "8487": [0, 0.68889, 0, 0], + "8498": [0, 0.68889, 0, 0], + "8502": [0, 0.68889, 0, 0], + "8503": [0, 0.68889, 0, 0], + "8504": [0, 0.68889, 0, 0], + "8513": [0, 0.68889, 0, 0], + "8592": [-0.03598, 0.46402, 0, 0], + "8594": [-0.03598, 0.46402, 0, 0], + "8602": [-0.13313, 0.36687, 0, 0], + "8603": [-0.13313, 0.36687, 0, 0], + "8606": [0.01354, 0.52239, 0, 0], + "8608": [0.01354, 0.52239, 0, 0], + "8610": [0.01354, 0.52239, 0, 0], + "8611": [0.01354, 0.52239, 0, 0], + "8619": [0, 0.54986, 0, 0], + "8620": [0, 0.54986, 0, 0], + "8621": [-0.13313, 0.37788, 0, 0], + "8622": [-0.13313, 0.36687, 0, 0], + "8624": [0, 0.69224, 0, 0], + "8625": [0, 0.69224, 0, 0], + "8630": [0, 0.43056, 0, 0], + "8631": [0, 0.43056, 0, 0], + "8634": [0.08198, 0.58198, 0, 0], + "8635": [0.08198, 0.58198, 0, 0], + "8638": [0.19444, 0.69224, 0, 0], + "8639": [0.19444, 0.69224, 0, 0], + "8642": [0.19444, 0.69224, 0, 0], + "8643": [0.19444, 0.69224, 0, 0], + "8644": [0.1808, 0.675, 0, 0], + "8646": [0.1808, 0.675, 0, 0], + "8647": [0.1808, 0.675, 0, 0], + "8648": [0.19444, 0.69224, 0, 0], + "8649": [0.1808, 0.675, 0, 0], + "8650": [0.19444, 0.69224, 0, 0], + "8651": [0.01354, 0.52239, 0, 0], + "8652": [0.01354, 0.52239, 0, 0], + "8653": [-0.13313, 0.36687, 0, 0], + "8654": [-0.13313, 0.36687, 0, 0], + "8655": [-0.13313, 0.36687, 0, 0], + "8666": [0.13667, 0.63667, 0, 0], + "8667": [0.13667, 0.63667, 0, 0], + "8669": [-0.13313, 0.37788, 0, 0], + "8672": [-0.064, 0.437, 0, 0], + "8674": [-0.064, 0.437, 0, 0], + "8705": [0, 0.825, 0, 0], + "8708": [0, 0.68889, 0, 0], + "8709": [0.08167, 0.58167, 0, 0], + "8717": [0, 0.43056, 0, 0], + "8722": [-0.03598, 0.46402, 0, 0], + "8724": [0.08198, 0.69224, 0, 0], + "8726": [0.08167, 0.58167, 0, 0], + "8733": [0, 0.69224, 0, 0], + "8736": [0, 0.69224, 0, 0], + "8737": [0, 0.69224, 0, 0], + "8738": [0.03517, 0.52239, 0, 0], + "8739": [0.08167, 0.58167, 0, 0], + "8740": [0.25142, 0.74111, 0, 0], + "8741": [0.08167, 0.58167, 0, 0], + "8742": [0.25142, 0.74111, 0, 0], + "8756": [0, 0.69224, 0, 0], + "8757": [0, 0.69224, 0, 0], + "8764": [-0.13313, 0.36687, 0, 0], + "8765": [-0.13313, 0.37788, 0, 0], + "8769": [-0.13313, 0.36687, 0, 0], + "8770": [-0.03625, 0.46375, 0, 0], + "8774": [0.30274, 0.79383, 0, 0], + "8776": [-0.01688, 0.48312, 0, 0], + "8778": [0.08167, 0.58167, 0, 0], + "8782": [0.06062, 0.54986, 0, 0], + "8783": [0.06062, 0.54986, 0, 0], + "8785": [0.08198, 0.58198, 0, 0], + "8786": [0.08198, 0.58198, 0, 0], + "8787": [0.08198, 0.58198, 0, 0], + "8790": [0, 0.69224, 0, 0], + "8791": [0.22958, 0.72958, 0, 0], + "8796": [0.08198, 0.91667, 0, 0], + "8806": [0.25583, 0.75583, 0, 0], + "8807": [0.25583, 0.75583, 0, 0], + "8808": [0.25142, 0.75726, 0, 0], + "8809": [0.25142, 0.75726, 0, 0], + "8812": [0.25583, 0.75583, 0, 0], + "8814": [0.20576, 0.70576, 0, 0], + "8815": [0.20576, 0.70576, 0, 0], + "8816": [0.30274, 0.79383, 0, 0], + "8817": [0.30274, 0.79383, 0, 0], + "8818": [0.22958, 0.72958, 0, 0], + "8819": [0.22958, 0.72958, 0, 0], + "8822": [0.1808, 0.675, 0, 0], + "8823": [0.1808, 0.675, 0, 0], + "8828": [0.13667, 0.63667, 0, 0], + "8829": [0.13667, 0.63667, 0, 0], + "8830": [0.22958, 0.72958, 0, 0], + "8831": [0.22958, 0.72958, 0, 0], + "8832": [0.20576, 0.70576, 0, 0], + "8833": [0.20576, 0.70576, 0, 0], + "8840": [0.30274, 0.79383, 0, 0], + "8841": [0.30274, 0.79383, 0, 0], + "8842": [0.13597, 0.63597, 0, 0], + "8843": [0.13597, 0.63597, 0, 0], + "8847": [0.03517, 0.54986, 0, 0], + "8848": [0.03517, 0.54986, 0, 0], + "8858": [0.08198, 0.58198, 0, 0], + "8859": [0.08198, 0.58198, 0, 0], + "8861": [0.08198, 0.58198, 0, 0], + "8862": [0, 0.675, 0, 0], + "8863": [0, 0.675, 0, 0], + "8864": [0, 0.675, 0, 0], + "8865": [0, 0.675, 0, 0], + "8872": [0, 0.69224, 0, 0], + "8873": [0, 0.69224, 0, 0], + "8874": [0, 0.69224, 0, 0], + "8876": [0, 0.68889, 0, 0], + "8877": [0, 0.68889, 0, 0], + "8878": [0, 0.68889, 0, 0], + "8879": [0, 0.68889, 0, 0], + "8882": [0.03517, 0.54986, 0, 0], + "8883": [0.03517, 0.54986, 0, 0], + "8884": [0.13667, 0.63667, 0, 0], + "8885": [0.13667, 0.63667, 0, 0], + "8888": [0, 0.54986, 0, 0], + "8890": [0.19444, 0.43056, 0, 0], + "8891": [0.19444, 0.69224, 0, 0], + "8892": [0.19444, 0.69224, 0, 0], + "8901": [0, 0.54986, 0, 0], + "8903": [0.08167, 0.58167, 0, 0], + "8905": [0.08167, 0.58167, 0, 0], + "8906": [0.08167, 0.58167, 0, 0], + "8907": [0, 0.69224, 0, 0], + "8908": [0, 0.69224, 0, 0], + "8909": [-0.03598, 0.46402, 0, 0], + "8910": [0, 0.54986, 0, 0], + "8911": [0, 0.54986, 0, 0], + "8912": [0.03517, 0.54986, 0, 0], + "8913": [0.03517, 0.54986, 0, 0], + "8914": [0, 0.54986, 0, 0], + "8915": [0, 0.54986, 0, 0], + "8916": [0, 0.69224, 0, 0], + "8918": [0.0391, 0.5391, 0, 0], + "8919": [0.0391, 0.5391, 0, 0], + "8920": [0.03517, 0.54986, 0, 0], + "8921": [0.03517, 0.54986, 0, 0], + "8922": [0.38569, 0.88569, 0, 0], + "8923": [0.38569, 0.88569, 0, 0], + "8926": [0.13667, 0.63667, 0, 0], + "8927": [0.13667, 0.63667, 0, 0], + "8928": [0.30274, 0.79383, 0, 0], + "8929": [0.30274, 0.79383, 0, 0], + "8934": [0.23222, 0.74111, 0, 0], + "8935": [0.23222, 0.74111, 0, 0], + "8936": [0.23222, 0.74111, 0, 0], + "8937": [0.23222, 0.74111, 0, 0], + "8938": [0.20576, 0.70576, 0, 0], + "8939": [0.20576, 0.70576, 0, 0], + "8940": [0.30274, 0.79383, 0, 0], + "8941": [0.30274, 0.79383, 0, 0], + "8994": [0.19444, 0.69224, 0, 0], + "8995": [0.19444, 0.69224, 0, 0], + "9416": [0.15559, 0.69224, 0, 0], + "9484": [0, 0.69224, 0, 0], + "9488": [0, 0.69224, 0, 0], + "9492": [0, 0.37788, 0, 0], + "9496": [0, 0.37788, 0, 0], + "9585": [0.19444, 0.68889, 0, 0], + "9586": [0.19444, 0.74111, 0, 0], + "9632": [0, 0.675, 0, 0], + "9633": [0, 0.675, 0, 0], + "9650": [0, 0.54986, 0, 0], + "9651": [0, 0.54986, 0, 0], + "9654": [0.03517, 0.54986, 0, 0], + "9660": [0, 0.54986, 0, 0], + "9661": [0, 0.54986, 0, 0], + "9664": [0.03517, 0.54986, 0, 0], + "9674": [0.11111, 0.69224, 0, 0], + "9733": [0.19444, 0.69224, 0, 0], + "10003": [0, 0.69224, 0, 0], + 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+var ParseNode = parseData.ParseNode; + +/* This file contains a list of functions that we parse, identified by + * the calls to defineFunction. + * + * The first argument to defineFunction is a single name or a list of names. + * All functions named in such a list will share a single implementation. + * + * Each declared function can have associated properties, which + * include the following: + * + * - numArgs: The number of arguments the function takes. + * If this is the only property, it can be passed as a number + * instead of an element of a properties object. + * - argTypes: (optional) An array corresponding to each argument of the + * function, giving the type of argument that should be parsed. Its + * length should be equal to `numArgs + numOptionalArgs`. Valid + * types: + * - "size": A size-like thing, such as "1em" or "5ex" + * - "color": An html color, like "#abc" or "blue" + * - "original": The same type as the environment that the + * function being parsed is in (e.g. used for the + * bodies of functions like \color where the first + * argument is special and the second argument is + * parsed normally) + * Other possible types (probably shouldn't be used) + * - "text": Text-like (e.g. \text) + * - "math": Normal math + * If undefined, this will be treated as an appropriate length + * array of "original" strings + * - greediness: (optional) The greediness of the function to use ungrouped + * arguments. + * + * E.g. if you have an expression + * \sqrt \frac 1 2 + * since \frac has greediness=2 vs \sqrt's greediness=1, \frac + * will use the two arguments '1' and '2' as its two arguments, + * then that whole function will be used as the argument to + * \sqrt. On the other hand, the expressions + * \frac \frac 1 2 3 + * and + * \frac \sqrt 1 2 + * will fail because \frac and \frac have equal greediness + * and \sqrt has a lower greediness than \frac respectively. To + * make these parse, we would have to change them to: + * \frac {\frac 1 2} 3 + * and + * \frac {\sqrt 1} 2 + * + * The default value is `1` + * - allowedInText: (optional) Whether or not the function is allowed inside + * text mode (default false) + * - numOptionalArgs: (optional) The number of optional arguments the function + * should parse. If the optional arguments aren't found, + * `null` will be passed to the handler in their place. + * (default 0) + * - infix: (optional) Must be true if the function is an infix operator. + * + * The last argument is that implementation, the handler for the function(s). + * It is called to handle these functions and their arguments. + * It receives two arguments: + * - context contains information and references provided by the parser + * - args is an array of arguments obtained from TeX input + * The context contains the following properties: + * - funcName: the text (i.e. name) of the function, including \ + * - parser: the parser object + * - lexer: the lexer object + * - positions: the positions in the overall string of the function + * and the arguments. + * The latter three should only be used to produce error messages. + * + * The function should return an object with the following keys: + * - type: The type of element that this is. This is then used in + * buildHTML/buildMathML to determine which function + * should be called to build this node into a DOM node + * Any other data can be added to the object, which will be passed + * in to the function in buildHTML/buildMathML as `group.value`. + */ + +function defineFunction(names, props, handler) { + if (typeof names === "string") { + names = [names]; + } + if (typeof props === "number") { + props = { numArgs: props }; + } + // Set default values of functions + var data = { + numArgs: props.numArgs, + argTypes: props.argTypes, + greediness: (props.greediness === undefined) ? 1 : props.greediness, + allowedInText: !!props.allowedInText, + numOptionalArgs: props.numOptionalArgs || 0, + infix: !!props.infix, + handler: handler + }; + for (var i = 0; i < names.length; ++i) { + module.exports[names[i]] = data; + } +} + +// Since the corresponding buildHTML/buildMathML function expects a +// list of elements, we normalize for different kinds of arguments +var ordargument = function(arg) { + if (arg.type === "ordgroup") { + return arg.value; + } else { + return [arg]; + } +}; + +// A normal square root +defineFunction("\\sqrt", { + numArgs: 1, + numOptionalArgs: 1 +}, function(context, args) { + var index = args[0]; + var body = args[1]; + return { + type: "sqrt", + body: body, + index: index + }; +}); + +// Non-mathy text, possibly in a font +var textFunctionStyles = { + "\\text": undefined, "\\textrm": "mathrm", "\\textsf": "mathsf", + "\\texttt": "mathtt", "\\textnormal": "mathrm", "\\textbf": "mathbf", + "\\textit": "textit" +}; + +defineFunction([ + "\\text", "\\textrm", "\\textsf", "\\texttt", "\\textnormal", + "\\textbf", "\\textit" +], { + numArgs: 1, + argTypes: ["text"], + greediness: 2, + allowedInText: true +}, function(context, args) { + var body = args[0]; + return { + type: "text", + body: ordargument(body), + style: textFunctionStyles[context.funcName] + }; +}); + +// A two-argument custom color +defineFunction("\\color", { + numArgs: 2, + allowedInText: true, + greediness: 3, + argTypes: ["color", "original"] +}, function(context, args) { + var color = args[0]; + var body = args[1]; + return { + type: "color", + color: color.value, + value: ordargument(body) + }; +}); + +// An overline +defineFunction("\\overline", { + numArgs: 1 +}, function(context, args) { + var body = args[0]; + return { + type: "overline", + body: body + }; +}); + +// An underline +defineFunction("\\underline", { + numArgs: 1 +}, function(context, args) { + var body = args[0]; + return { + type: "underline", + body: body + }; +}); + +// A box of the width and height +defineFunction("\\rule", { + numArgs: 2, + numOptionalArgs: 1, + argTypes: ["size", "size", "size"] +}, function(context, args) { + var shift = args[0]; + var width = args[1]; + var height = args[2]; + return { + type: "rule", + shift: shift && shift.value, + width: width.value, + height: height.value + }; +}); + +// TODO: In TeX, \mkern only accepts mu-units, and \kern does not accept +// mu-units. In current KaTeX we relax this; both commands accept any unit. +defineFunction(["\\kern", "\\mkern"], { + numArgs: 1, + argTypes: ["size"] +}, function(context, args) { + return { + type: "kern", + dimension: args[0].value + }; +}); + +// A KaTeX logo +defineFunction("\\KaTeX", { + numArgs: 0 +}, function(context) { + return { + type: "katex" + }; +}); + +defineFunction("\\phantom", { + numArgs: 1 +}, function(context, args) { + var body = args[0]; + return { + type: "phantom", + value: ordargument(body) + }; +}); + +// Math class commands except \mathop +defineFunction([ + "\\mathord", "\\mathbin", "\\mathrel", "\\mathopen", + "\\mathclose", "\\mathpunct", "\\mathinner" +], { + numArgs: 1 +}, function(context, args) { + var body = args[0]; + return { + type: "mclass", + mclass: "m" + context.funcName.substr(5), + value: ordargument(body) + }; +}); + +// Build a relation by placing one symbol on top of another +defineFunction("\\stackrel", { + numArgs: 2 +}, function(context, args) { + var top = args[0]; + var bottom = args[1]; + + var bottomop = new ParseNode("op", { + type: "op", + limits: true, + alwaysHandleSupSub: true, + symbol: false, + value: ordargument(bottom) + }, bottom.mode); + + var supsub = new ParseNode("supsub", { + base: bottomop, + sup: top, + sub: null + }, top.mode); + + return { + type: "mclass", + mclass: "mrel", + value: [supsub] + }; +}); + +// \mod-type functions +defineFunction("\\bmod", { + numArgs: 0 +}, function(context, args) { + return { + type: "mod", + modType: "bmod", + value: null + }; +}); + +defineFunction(["\\pod", "\\pmod", "\\mod"], { + numArgs: 1 +}, function(context, args) { + var body = args[0]; + return { + type: "mod", + modType: context.funcName.substr(1), + value: ordargument(body) + }; +}); + +// Extra data needed for the delimiter handler down below +var delimiterSizes = { + "\\bigl" : {mclass: "mopen", size: 1}, + "\\Bigl" : {mclass: "mopen", size: 2}, + "\\biggl": {mclass: "mopen", size: 3}, + "\\Biggl": {mclass: "mopen", size: 4}, + "\\bigr" : {mclass: "mclose", size: 1}, + "\\Bigr" : {mclass: "mclose", size: 2}, + "\\biggr": {mclass: "mclose", size: 3}, + "\\Biggr": {mclass: "mclose", size: 4}, + "\\bigm" : {mclass: "mrel", size: 1}, + "\\Bigm" : {mclass: "mrel", size: 2}, + "\\biggm": {mclass: "mrel", size: 3}, + "\\Biggm": {mclass: "mrel", size: 4}, + "\\big" : {mclass: "mord", size: 1}, + "\\Big" : {mclass: "mord", size: 2}, + "\\bigg" : {mclass: "mord", size: 3}, + "\\Bigg" : {mclass: "mord", size: 4} +}; + +var delimiters = [ + "(", ")", "[", "\\lbrack", "]", "\\rbrack", + "\\{", "\\lbrace", "\\}", "\\rbrace", + "\\lfloor", "\\rfloor", "\\lceil", "\\rceil", + "<", ">", "\\langle", "\\rangle", "\\lt", "\\gt", + "\\lvert", "\\rvert", "\\lVert", "\\rVert", + "\\lgroup", "\\rgroup", "\\lmoustache", "\\rmoustache", + "/", "\\backslash", + "|", "\\vert", "\\|", "\\Vert", + "\\uparrow", "\\Uparrow", + "\\downarrow", "\\Downarrow", + "\\updownarrow", "\\Updownarrow", + "." +]; + +var fontAliases = { + "\\Bbb": "\\mathbb", + "\\bold": "\\mathbf", + "\\frak": "\\mathfrak" +}; + +// Single-argument color functions +defineFunction([ + "\\blue", "\\orange", "\\pink", "\\red", + "\\green", "\\gray", "\\purple", + "\\blueA", "\\blueB", "\\blueC", "\\blueD", "\\blueE", + "\\tealA", "\\tealB", "\\tealC", "\\tealD", "\\tealE", + "\\greenA", "\\greenB", "\\greenC", "\\greenD", "\\greenE", + "\\goldA", "\\goldB", "\\goldC", "\\goldD", "\\goldE", + "\\redA", "\\redB", "\\redC", "\\redD", "\\redE", + "\\maroonA", "\\maroonB", "\\maroonC", "\\maroonD", "\\maroonE", + "\\purpleA", "\\purpleB", "\\purpleC", "\\purpleD", "\\purpleE", + "\\mintA", "\\mintB", "\\mintC", + "\\grayA", "\\grayB", "\\grayC", "\\grayD", "\\grayE", + "\\grayF", "\\grayG", "\\grayH", "\\grayI", + "\\kaBlue", "\\kaGreen" +], { + numArgs: 1, + allowedInText: true, + greediness: 3 +}, function(context, args) { + var body = args[0]; + return { + type: "color", + color: "katex-" + context.funcName.slice(1), + value: ordargument(body) + }; +}); + +// There are 2 flags for operators; whether they produce limits in +// displaystyle, and whether they are symbols and should grow in +// displaystyle. These four groups cover the four possible choices. + +// No limits, not symbols +defineFunction([ + "\\arcsin", "\\arccos", "\\arctan", "\\arg", "\\cos", "\\cosh", + "\\cot", "\\coth", "\\csc", "\\deg", "\\dim", "\\exp", "\\hom", + "\\ker", "\\lg", "\\ln", "\\log", "\\sec", "\\sin", "\\sinh", + "\\tan", "\\tanh" +], { + numArgs: 0 +}, function(context) { + return { + type: "op", + limits: false, + symbol: false, + body: context.funcName + }; +}); + +// Limits, not symbols +defineFunction([ + "\\det", "\\gcd", "\\inf", "\\lim", "\\liminf", "\\limsup", "\\max", + "\\min", "\\Pr", "\\sup" +], { + numArgs: 0 +}, function(context) { + return { + type: "op", + limits: true, + symbol: false, + body: context.funcName + }; +}); + +// No limits, symbols +defineFunction([ + "\\int", "\\iint", "\\iiint", "\\oint" +], { + numArgs: 0 +}, function(context) { + return { + type: "op", + limits: false, + symbol: true, + body: context.funcName + }; +}); + +// Limits, symbols +defineFunction([ + "\\coprod", "\\bigvee", "\\bigwedge", "\\biguplus", "\\bigcap", + "\\bigcup", "\\intop", "\\prod", "\\sum", "\\bigotimes", + "\\bigoplus", "\\bigodot", "\\bigsqcup", "\\smallint" +], { + numArgs: 0 +}, function(context) { + return { + type: "op", + limits: true, + symbol: true, + body: context.funcName + }; +}); + +// \mathop class command +defineFunction("\\mathop", { + numArgs: 1 +}, function(context, args) { + var body = args[0]; + return { + type: "op", + limits: false, + symbol: false, + value: ordargument(body) + }; +}); + +// Fractions +defineFunction([ + "\\dfrac", "\\frac", "\\tfrac", + "\\dbinom", "\\binom", "\\tbinom", + "\\\\atopfrac" // can’t be entered directly +], { + numArgs: 2, + greediness: 2 +}, function(context, args) { + var numer = args[0]; + var denom = args[1]; + var hasBarLine; + var leftDelim = null; + var rightDelim = null; + var size = "auto"; + + switch (context.funcName) { + case "\\dfrac": + case "\\frac": + case "\\tfrac": + hasBarLine = true; + break; + case "\\\\atopfrac": + hasBarLine = false; + break; + case "\\dbinom": + case "\\binom": + case "\\tbinom": + hasBarLine = false; + leftDelim = "("; + rightDelim = ")"; + break; + default: + throw new Error("Unrecognized genfrac command"); + } + + switch (context.funcName) { + case "\\dfrac": + case "\\dbinom": + size = "display"; + break; + case "\\tfrac": + case "\\tbinom": + size = "text"; + break; + } + + return { + type: "genfrac", + numer: numer, + denom: denom, + hasBarLine: hasBarLine, + leftDelim: leftDelim, + rightDelim: rightDelim, + size: size + }; +}); + +// Left and right overlap functions +defineFunction(["\\llap", "\\rlap"], { + numArgs: 1, + allowedInText: true +}, function(context, args) { + var body = args[0]; + return { + type: context.funcName.slice(1), + body: body + }; +}); + +// Delimiter functions +var checkDelimiter = function(delim, context) { + if (utils.contains(delimiters, delim.value)) { + return delim; + } else { + throw new ParseError( + "Invalid delimiter: '" + delim.value + "' after '" + + context.funcName + "'", delim); + } +}; + +defineFunction([ + "\\bigl", "\\Bigl", "\\biggl", "\\Biggl", + "\\bigr", "\\Bigr", "\\biggr", "\\Biggr", + "\\bigm", "\\Bigm", "\\biggm", "\\Biggm", + "\\big", "\\Big", "\\bigg", "\\Bigg" +], { + numArgs: 1 +}, function(context, args) { + var delim = checkDelimiter(args[0], context); + + return { + type: "delimsizing", + size: delimiterSizes[context.funcName].size, + mclass: delimiterSizes[context.funcName].mclass, + value: delim.value + }; +}); + +defineFunction([ + "\\left", "\\right" +], { + numArgs: 1 +}, function(context, args) { + var delim = checkDelimiter(args[0], context); + + // \left and \right are caught somewhere in Parser.js, which is + // why this data doesn't match what is in buildHTML. + return { + type: "leftright", + value: delim.value + }; +}); + +defineFunction("\\middle", { + numArgs: 1 +}, function(context, args) { + var delim = checkDelimiter(args[0], context); + if (!context.parser.leftrightDepth) { + throw new ParseError("\\middle without preceding \\left", delim); + } + + return { + type: "middle", + value: delim.value + }; +}); + +// Sizing functions (handled in Parser.js explicitly, hence no handler) +defineFunction([ + "\\tiny", "\\scriptsize", "\\footnotesize", "\\small", + "\\normalsize", "\\large", "\\Large", "\\LARGE", "\\huge", "\\Huge" +], 0, null); + +// Style changing functions (handled in Parser.js explicitly, hence no +// handler) +defineFunction([ + "\\displaystyle", "\\textstyle", "\\scriptstyle", + "\\scriptscriptstyle" +], 0, null); + +defineFunction([ + // styles + "\\mathrm", "\\mathit", "\\mathbf", + + // families + "\\mathbb", "\\mathcal", "\\mathfrak", "\\mathscr", "\\mathsf", + "\\mathtt", + + // aliases + "\\Bbb", "\\bold", "\\frak" +], { + numArgs: 1, + greediness: 2 +}, function(context, args) { + var body = args[0]; + var func = context.funcName; + if (func in fontAliases) { + func = fontAliases[func]; + } + return { + type: "font", + font: func.slice(1), + body: body + }; +}); + +// Accents +defineFunction([ + "\\acute", "\\grave", "\\ddot", "\\tilde", "\\bar", "\\breve", + "\\check", "\\hat", "\\vec", "\\dot" + // We don't support expanding accents yet + // "\\widetilde", "\\widehat" +], { + numArgs: 1 +}, function(context, args) { + var base = args[0]; + return { + type: "accent", + accent: context.funcName, + base: base + }; +}); + +// Infix generalized fractions +defineFunction(["\\over", "\\choose", "\\atop"], { + numArgs: 0, + infix: true +}, function(context) { + var replaceWith; + switch (context.funcName) { + case "\\over": + replaceWith = "\\frac"; + break; + case "\\choose": + replaceWith = "\\binom"; + break; + case "\\atop": + replaceWith = "\\\\atopfrac"; + break; + default: + throw new Error("Unrecognized infix genfrac command"); + } + return { + type: "infix", + replaceWith: replaceWith, + token: context.token + }; +}); + +// Row breaks for aligned data +defineFunction(["\\\\", "\\cr"], { + numArgs: 0, + numOptionalArgs: 1, + argTypes: ["size"] +}, function(context, args) { + var size = args[0]; + return { + type: "cr", + size: size + }; +}); + +// Environment delimiters +defineFunction(["\\begin", "\\end"], { + numArgs: 1, + argTypes: ["text"] +}, function(context, args) { + var nameGroup = args[0]; + if (nameGroup.type !== "ordgroup") { + throw new ParseError("Invalid environment name", nameGroup); + } + var name = ""; + for (var i = 0; i < nameGroup.value.length; ++i) { + name += nameGroup.value[i].value; + } + return { + type: "environment", + name: name, + nameGroup: nameGroup + }; +}); + +},{"./ParseError":6,"./parseData":21,"./utils":25}],20:[function(require,module,exports){ +/** + * These objects store data about MathML nodes. This is the MathML equivalent + * of the types in domTree.js. Since MathML handles its own rendering, and + * since we're mainly using MathML to improve accessibility, we don't manage + * any of the styling state that the plain DOM nodes do. + * + * The `toNode` and `toMarkup` functions work simlarly to how they do in + * domTree.js, creating namespaced DOM nodes and HTML text markup respectively. + */ + +var utils = require("./utils"); + +/** + * This node represents a general purpose MathML node of any type. The + * constructor requires the type of node to create (for example, `"mo"` or + * `"mspace"`, corresponding to `` and `` tags). + */ +function MathNode(type, children) { + this.type = type; + this.attributes = {}; + this.children = children || []; +} + +/** + * Sets an attribute on a MathML node. MathML depends on attributes to convey a + * semantic content, so this is used heavily. + */ +MathNode.prototype.setAttribute = function(name, value) { + this.attributes[name] = value; +}; + +/** + * Converts the math node into a MathML-namespaced DOM element. + */ +MathNode.prototype.toNode = function() { + var node = document.createElementNS( + "http://www.w3.org/1998/Math/MathML", this.type); + + for (var attr in this.attributes) { + if (Object.prototype.hasOwnProperty.call(this.attributes, attr)) { + node.setAttribute(attr, this.attributes[attr]); + } + } + + for (var i = 0; i < this.children.length; i++) { + node.appendChild(this.children[i].toNode()); + } + + return node; +}; + +/** + * Converts the math node into an HTML markup string. + */ +MathNode.prototype.toMarkup = function() { + var markup = "<" + this.type; + + // Add the attributes + for (var attr in this.attributes) { + if (Object.prototype.hasOwnProperty.call(this.attributes, attr)) { + markup += " " + attr + "=\""; + markup += utils.escape(this.attributes[attr]); + markup += "\""; + } + } + + markup += ">"; + + for (var i = 0; i < this.children.length; i++) { + markup += this.children[i].toMarkup(); + } + + markup += ""; + + return markup; +}; + +/** + * This node represents a piece of text. + */ +function TextNode(text) { + this.text = text; +} + +/** + * Converts the text node into a DOM text node. + */ +TextNode.prototype.toNode = function() { + return document.createTextNode(this.text); +}; + +/** + * Converts the text node into HTML markup (which is just the text itself). + */ +TextNode.prototype.toMarkup = function() { + return utils.escape(this.text); +}; + +module.exports = { + MathNode: MathNode, + TextNode: TextNode +}; + +},{"./utils":25}],21:[function(require,module,exports){ +/** + * The resulting parse tree nodes of the parse tree. + * + * It is possible to provide position information, so that a ParseNode can + * fulfil a role similar to a Token in error reporting. + * For details on the corresponding properties see Token constructor. + * Providing such information can lead to better error reporting. + * + * @param {string} type type of node, like e.g. "ordgroup" + * @param {?object} value type-specific representation of the node + * @param {string} mode parse mode in action for this node, + * "math" or "text" + * @param {Token=} firstToken first token of the input for this node, + * will omit position information if unset + * @param {Token=} lastToken last token of the input for this node, + * will default to firstToken if unset + */ +function ParseNode(type, value, mode, firstToken, lastToken) { + this.type = type; + this.value = value; + this.mode = mode; + if (firstToken && (!lastToken || lastToken.lexer === firstToken.lexer)) { + this.lexer = firstToken.lexer; + this.start = firstToken.start; + this.end = (lastToken || firstToken).end; + } +} + +module.exports = { + ParseNode: ParseNode +}; + + +},{}],22:[function(require,module,exports){ +/** + * Provides a single function for parsing an expression using a Parser + * TODO(emily): Remove this + */ + +var Parser = require("./Parser"); + +/** + * Parses an expression using a Parser, then returns the parsed result. + */ +var parseTree = function(toParse, settings) { + if (!(typeof toParse === 'string' || toParse instanceof String)) { + throw new TypeError('KaTeX can only parse string typed expression'); + } + var parser = new Parser(toParse, settings); + + return parser.parse(); +}; + +module.exports = parseTree; + +},{"./Parser":7}],23:[function(require,module,exports){ +/** + * This file holds a list of all no-argument functions and single-character + * symbols (like 'a' or ';'). + * + * For each of the symbols, there are three properties they can have: + * - font (required): the font to be used for this symbol. Either "main" (the + normal font), or "ams" (the ams fonts). + * - group (required): the ParseNode group type the symbol should have (i.e. + "textord", "mathord", etc). + See https://github.com/Khan/KaTeX/wiki/Examining-TeX#group-types + * - replace: the character that this symbol or function should be + * replaced with (i.e. "\phi" has a replace value of "\u03d5", the phi + * character in the main font). + * + * The outermost map in the table indicates what mode the symbols should be + * accepted in (e.g. "math" or "text"). + */ + +module.exports = { + math: {}, + text: {} +}; + +function defineSymbol(mode, font, group, replace, name) { + module.exports[mode][name] = { + font: font, + group: group, + replace: replace + }; +} + +// Some abbreviations for commonly used strings. +// This helps minify the code, and also spotting typos using jshint. + +// modes: +var math = "math"; +var text = "text"; + +// fonts: +var main = "main"; +var ams = "ams"; + +// groups: +var accent = "accent"; +var bin = "bin"; +var close = "close"; +var inner = "inner"; +var mathord = "mathord"; +var op = "op"; +var open = "open"; +var punct = "punct"; +var rel = "rel"; +var spacing = "spacing"; +var textord = "textord"; + +// Now comes the symbol table + +// Relation Symbols +defineSymbol(math, main, rel, "\u2261", "\\equiv"); +defineSymbol(math, main, rel, "\u227a", "\\prec"); +defineSymbol(math, main, rel, "\u227b", "\\succ"); +defineSymbol(math, main, rel, "\u223c", "\\sim"); +defineSymbol(math, main, rel, "\u22a5", "\\perp"); +defineSymbol(math, main, rel, "\u2aaf", "\\preceq"); +defineSymbol(math, main, rel, "\u2ab0", "\\succeq"); +defineSymbol(math, main, rel, "\u2243", "\\simeq"); +defineSymbol(math, main, rel, "\u2223", "\\mid"); +defineSymbol(math, main, rel, "\u226a", "\\ll"); +defineSymbol(math, main, rel, "\u226b", "\\gg"); +defineSymbol(math, main, rel, "\u224d", "\\asymp"); +defineSymbol(math, main, rel, "\u2225", "\\parallel"); +defineSymbol(math, main, rel, "\u22c8", "\\bowtie"); +defineSymbol(math, main, rel, "\u2323", "\\smile"); +defineSymbol(math, main, rel, "\u2291", "\\sqsubseteq"); +defineSymbol(math, main, rel, "\u2292", "\\sqsupseteq"); +defineSymbol(math, main, rel, "\u2250", "\\doteq"); +defineSymbol(math, main, rel, "\u2322", "\\frown"); +defineSymbol(math, main, rel, "\u220b", "\\ni"); +defineSymbol(math, main, rel, "\u221d", "\\propto"); +defineSymbol(math, main, rel, "\u22a2", "\\vdash"); +defineSymbol(math, main, rel, "\u22a3", "\\dashv"); +defineSymbol(math, main, rel, "\u220b", "\\owns"); + +// Punctuation +defineSymbol(math, main, punct, "\u002e", "\\ldotp"); +defineSymbol(math, main, punct, "\u22c5", "\\cdotp"); + +// Misc Symbols +defineSymbol(math, main, textord, "\u0023", "\\#"); +defineSymbol(text, main, textord, "\u0023", "\\#"); +defineSymbol(math, main, textord, "\u0026", "\\&"); +defineSymbol(text, main, textord, "\u0026", "\\&"); +defineSymbol(math, main, textord, "\u2135", "\\aleph"); +defineSymbol(math, main, textord, "\u2200", "\\forall"); +defineSymbol(math, main, textord, "\u210f", "\\hbar"); +defineSymbol(math, main, textord, "\u2203", "\\exists"); +defineSymbol(math, main, textord, "\u2207", "\\nabla"); +defineSymbol(math, main, textord, "\u266d", "\\flat"); +defineSymbol(math, main, textord, "\u2113", "\\ell"); +defineSymbol(math, main, textord, "\u266e", "\\natural"); +defineSymbol(math, main, textord, "\u2663", "\\clubsuit"); +defineSymbol(math, main, textord, "\u2118", "\\wp"); +defineSymbol(math, main, textord, "\u266f", "\\sharp"); +defineSymbol(math, main, textord, "\u2662", "\\diamondsuit"); +defineSymbol(math, main, textord, "\u211c", "\\Re"); +defineSymbol(math, main, textord, "\u2661", "\\heartsuit"); +defineSymbol(math, main, textord, "\u2111", "\\Im"); +defineSymbol(math, main, textord, "\u2660", "\\spadesuit"); + +// Math and Text +defineSymbol(math, main, textord, "\u2020", "\\dag"); +defineSymbol(math, main, textord, "\u2021", "\\ddag"); + +// Large Delimiters +defineSymbol(math, main, close, "\u23b1", "\\rmoustache"); +defineSymbol(math, main, open, "\u23b0", "\\lmoustache"); +defineSymbol(math, main, close, "\u27ef", "\\rgroup"); +defineSymbol(math, main, open, "\u27ee", "\\lgroup"); + +// Binary Operators +defineSymbol(math, main, bin, "\u2213", "\\mp"); +defineSymbol(math, main, bin, "\u2296", "\\ominus"); +defineSymbol(math, main, bin, "\u228e", "\\uplus"); +defineSymbol(math, main, bin, "\u2293", "\\sqcap"); +defineSymbol(math, main, bin, "\u2217", "\\ast"); +defineSymbol(math, main, bin, "\u2294", "\\sqcup"); +defineSymbol(math, main, bin, "\u25ef", "\\bigcirc"); +defineSymbol(math, main, bin, "\u2219", "\\bullet"); +defineSymbol(math, main, bin, "\u2021", "\\ddagger"); +defineSymbol(math, main, bin, "\u2240", "\\wr"); +defineSymbol(math, main, bin, "\u2a3f", "\\amalg"); + +// Arrow Symbols +defineSymbol(math, main, rel, "\u27f5", "\\longleftarrow"); +defineSymbol(math, main, rel, "\u21d0", "\\Leftarrow"); +defineSymbol(math, main, rel, "\u27f8", "\\Longleftarrow"); +defineSymbol(math, main, rel, "\u27f6", "\\longrightarrow"); +defineSymbol(math, main, rel, "\u21d2", "\\Rightarrow"); +defineSymbol(math, main, rel, "\u27f9", "\\Longrightarrow"); +defineSymbol(math, main, rel, "\u2194", "\\leftrightarrow"); +defineSymbol(math, main, rel, "\u27f7", "\\longleftrightarrow"); +defineSymbol(math, main, rel, "\u21d4", "\\Leftrightarrow"); +defineSymbol(math, main, rel, "\u27fa", "\\Longleftrightarrow"); +defineSymbol(math, main, rel, "\u21a6", "\\mapsto"); +defineSymbol(math, main, rel, "\u27fc", "\\longmapsto"); +defineSymbol(math, main, rel, "\u2197", "\\nearrow"); +defineSymbol(math, main, rel, "\u21a9", "\\hookleftarrow"); +defineSymbol(math, main, rel, "\u21aa", "\\hookrightarrow"); +defineSymbol(math, main, rel, "\u2198", "\\searrow"); +defineSymbol(math, main, rel, "\u21bc", "\\leftharpoonup"); +defineSymbol(math, main, rel, "\u21c0", "\\rightharpoonup"); +defineSymbol(math, main, rel, "\u2199", "\\swarrow"); +defineSymbol(math, main, rel, "\u21bd", "\\leftharpoondown"); +defineSymbol(math, main, rel, "\u21c1", "\\rightharpoondown"); +defineSymbol(math, main, rel, "\u2196", "\\nwarrow"); +defineSymbol(math, main, rel, "\u21cc", "\\rightleftharpoons"); + +// AMS Negated Binary Relations +defineSymbol(math, ams, rel, "\u226e", "\\nless"); +defineSymbol(math, ams, rel, "\ue010", "\\nleqslant"); +defineSymbol(math, ams, rel, "\ue011", "\\nleqq"); +defineSymbol(math, ams, rel, "\u2a87", "\\lneq"); +defineSymbol(math, ams, rel, "\u2268", "\\lneqq"); +defineSymbol(math, ams, rel, "\ue00c", "\\lvertneqq"); +defineSymbol(math, ams, rel, "\u22e6", "\\lnsim"); +defineSymbol(math, ams, rel, "\u2a89", "\\lnapprox"); +defineSymbol(math, ams, rel, "\u2280", "\\nprec"); +defineSymbol(math, ams, rel, "\u22e0", "\\npreceq"); +defineSymbol(math, ams, rel, "\u22e8", "\\precnsim"); +defineSymbol(math, ams, rel, "\u2ab9", "\\precnapprox"); +defineSymbol(math, ams, rel, "\u2241", "\\nsim"); +defineSymbol(math, ams, rel, "\ue006", "\\nshortmid"); +defineSymbol(math, ams, rel, "\u2224", "\\nmid"); +defineSymbol(math, ams, rel, "\u22ac", "\\nvdash"); +defineSymbol(math, ams, rel, "\u22ad", "\\nvDash"); +defineSymbol(math, ams, rel, "\u22ea", "\\ntriangleleft"); +defineSymbol(math, ams, rel, "\u22ec", "\\ntrianglelefteq"); +defineSymbol(math, ams, rel, "\u228a", "\\subsetneq"); +defineSymbol(math, ams, rel, "\ue01a", "\\varsubsetneq"); +defineSymbol(math, ams, rel, "\u2acb", "\\subsetneqq"); +defineSymbol(math, ams, rel, "\ue017", "\\varsubsetneqq"); +defineSymbol(math, ams, rel, "\u226f", "\\ngtr"); +defineSymbol(math, ams, rel, "\ue00f", "\\ngeqslant"); +defineSymbol(math, ams, rel, "\ue00e", "\\ngeqq"); +defineSymbol(math, ams, rel, "\u2a88", "\\gneq"); +defineSymbol(math, ams, rel, "\u2269", "\\gneqq"); +defineSymbol(math, ams, rel, "\ue00d", "\\gvertneqq"); +defineSymbol(math, ams, rel, "\u22e7", "\\gnsim"); +defineSymbol(math, ams, rel, "\u2a8a", "\\gnapprox"); +defineSymbol(math, ams, rel, "\u2281", "\\nsucc"); +defineSymbol(math, ams, rel, "\u22e1", "\\nsucceq"); +defineSymbol(math, ams, rel, "\u22e9", "\\succnsim"); +defineSymbol(math, ams, rel, "\u2aba", "\\succnapprox"); +defineSymbol(math, ams, rel, "\u2246", "\\ncong"); +defineSymbol(math, ams, rel, "\ue007", "\\nshortparallel"); +defineSymbol(math, ams, rel, "\u2226", "\\nparallel"); +defineSymbol(math, ams, rel, "\u22af", "\\nVDash"); +defineSymbol(math, ams, rel, "\u22eb", "\\ntriangleright"); +defineSymbol(math, ams, rel, "\u22ed", "\\ntrianglerighteq"); +defineSymbol(math, ams, rel, "\ue018", "\\nsupseteqq"); +defineSymbol(math, ams, rel, "\u228b", "\\supsetneq"); +defineSymbol(math, ams, rel, "\ue01b", "\\varsupsetneq"); +defineSymbol(math, ams, rel, "\u2acc", "\\supsetneqq"); +defineSymbol(math, ams, rel, "\ue019", "\\varsupsetneqq"); +defineSymbol(math, ams, rel, "\u22ae", "\\nVdash"); +defineSymbol(math, ams, rel, "\u2ab5", "\\precneqq"); +defineSymbol(math, ams, rel, "\u2ab6", "\\succneqq"); +defineSymbol(math, ams, rel, "\ue016", "\\nsubseteqq"); +defineSymbol(math, ams, bin, "\u22b4", "\\unlhd"); +defineSymbol(math, ams, bin, "\u22b5", "\\unrhd"); + +// AMS Negated Arrows +defineSymbol(math, ams, rel, "\u219a", "\\nleftarrow"); +defineSymbol(math, ams, rel, "\u219b", "\\nrightarrow"); +defineSymbol(math, ams, rel, "\u21cd", "\\nLeftarrow"); +defineSymbol(math, ams, rel, "\u21cf", "\\nRightarrow"); +defineSymbol(math, ams, rel, "\u21ae", "\\nleftrightarrow"); +defineSymbol(math, ams, rel, "\u21ce", "\\nLeftrightarrow"); + +// AMS Misc +defineSymbol(math, ams, rel, "\u25b3", "\\vartriangle"); +defineSymbol(math, ams, textord, "\u210f", "\\hslash"); +defineSymbol(math, ams, textord, "\u25bd", "\\triangledown"); +defineSymbol(math, ams, textord, "\u25ca", "\\lozenge"); +defineSymbol(math, ams, textord, "\u24c8", "\\circledS"); +defineSymbol(math, ams, textord, "\u00ae", "\\circledR"); +defineSymbol(math, ams, textord, "\u2221", "\\measuredangle"); +defineSymbol(math, ams, textord, "\u2204", "\\nexists"); +defineSymbol(math, ams, textord, "\u2127", "\\mho"); +defineSymbol(math, ams, textord, "\u2132", "\\Finv"); +defineSymbol(math, ams, textord, "\u2141", "\\Game"); +defineSymbol(math, ams, textord, "\u006b", "\\Bbbk"); +defineSymbol(math, ams, textord, "\u2035", "\\backprime"); +defineSymbol(math, ams, textord, "\u25b2", "\\blacktriangle"); +defineSymbol(math, ams, textord, "\u25bc", "\\blacktriangledown"); +defineSymbol(math, ams, textord, "\u25a0", "\\blacksquare"); +defineSymbol(math, ams, textord, "\u29eb", "\\blacklozenge"); +defineSymbol(math, ams, textord, "\u2605", "\\bigstar"); +defineSymbol(math, ams, textord, "\u2222", "\\sphericalangle"); +defineSymbol(math, ams, textord, "\u2201", "\\complement"); +defineSymbol(math, ams, textord, "\u00f0", "\\eth"); +defineSymbol(math, ams, textord, "\u2571", "\\diagup"); +defineSymbol(math, ams, textord, "\u2572", "\\diagdown"); +defineSymbol(math, ams, textord, "\u25a1", "\\square"); +defineSymbol(math, ams, textord, "\u25a1", "\\Box"); +defineSymbol(math, ams, textord, "\u25ca", "\\Diamond"); +defineSymbol(math, ams, textord, "\u00a5", "\\yen"); +defineSymbol(math, ams, textord, "\u2713", "\\checkmark"); + +// AMS Hebrew +defineSymbol(math, ams, textord, "\u2136", "\\beth"); +defineSymbol(math, ams, textord, "\u2138", "\\daleth"); +defineSymbol(math, ams, textord, "\u2137", "\\gimel"); + +// AMS Greek +defineSymbol(math, ams, textord, "\u03dd", "\\digamma"); +defineSymbol(math, ams, textord, "\u03f0", "\\varkappa"); + +// AMS Delimiters +defineSymbol(math, ams, open, "\u250c", "\\ulcorner"); +defineSymbol(math, ams, close, "\u2510", "\\urcorner"); +defineSymbol(math, ams, open, "\u2514", "\\llcorner"); +defineSymbol(math, ams, close, "\u2518", "\\lrcorner"); + +// AMS Binary Relations +defineSymbol(math, ams, rel, "\u2266", "\\leqq"); +defineSymbol(math, ams, rel, "\u2a7d", "\\leqslant"); +defineSymbol(math, ams, rel, "\u2a95", "\\eqslantless"); +defineSymbol(math, ams, rel, "\u2272", "\\lesssim"); +defineSymbol(math, ams, rel, "\u2a85", "\\lessapprox"); +defineSymbol(math, ams, rel, "\u224a", "\\approxeq"); +defineSymbol(math, ams, bin, "\u22d6", "\\lessdot"); +defineSymbol(math, ams, rel, "\u22d8", "\\lll"); +defineSymbol(math, ams, rel, "\u2276", "\\lessgtr"); +defineSymbol(math, ams, rel, "\u22da", "\\lesseqgtr"); +defineSymbol(math, ams, rel, "\u2a8b", "\\lesseqqgtr"); +defineSymbol(math, ams, rel, "\u2251", "\\doteqdot"); +defineSymbol(math, ams, rel, "\u2253", "\\risingdotseq"); +defineSymbol(math, ams, rel, "\u2252", "\\fallingdotseq"); +defineSymbol(math, ams, rel, "\u223d", "\\backsim"); +defineSymbol(math, ams, rel, "\u22cd", "\\backsimeq"); +defineSymbol(math, ams, rel, "\u2ac5", "\\subseteqq"); +defineSymbol(math, ams, rel, "\u22d0", "\\Subset"); +defineSymbol(math, ams, rel, "\u228f", "\\sqsubset"); +defineSymbol(math, ams, rel, "\u227c", "\\preccurlyeq"); +defineSymbol(math, ams, rel, "\u22de", "\\curlyeqprec"); +defineSymbol(math, ams, rel, "\u227e", "\\precsim"); +defineSymbol(math, ams, rel, "\u2ab7", "\\precapprox"); +defineSymbol(math, ams, rel, "\u22b2", "\\vartriangleleft"); +defineSymbol(math, ams, rel, "\u22b4", "\\trianglelefteq"); +defineSymbol(math, ams, rel, "\u22a8", "\\vDash"); +defineSymbol(math, ams, rel, "\u22aa", "\\Vvdash"); +defineSymbol(math, ams, rel, "\u2323", "\\smallsmile"); +defineSymbol(math, ams, rel, "\u2322", "\\smallfrown"); +defineSymbol(math, ams, rel, "\u224f", "\\bumpeq"); +defineSymbol(math, ams, rel, "\u224e", "\\Bumpeq"); +defineSymbol(math, ams, rel, "\u2267", "\\geqq"); +defineSymbol(math, ams, rel, "\u2a7e", "\\geqslant"); +defineSymbol(math, ams, rel, "\u2a96", "\\eqslantgtr"); +defineSymbol(math, ams, rel, "\u2273", "\\gtrsim"); +defineSymbol(math, ams, rel, "\u2a86", "\\gtrapprox"); +defineSymbol(math, ams, bin, "\u22d7", "\\gtrdot"); +defineSymbol(math, ams, rel, "\u22d9", "\\ggg"); +defineSymbol(math, ams, rel, "\u2277", "\\gtrless"); +defineSymbol(math, ams, rel, "\u22db", "\\gtreqless"); +defineSymbol(math, ams, rel, "\u2a8c", "\\gtreqqless"); +defineSymbol(math, ams, rel, "\u2256", "\\eqcirc"); +defineSymbol(math, ams, rel, "\u2257", "\\circeq"); +defineSymbol(math, ams, rel, "\u225c", "\\triangleq"); +defineSymbol(math, ams, rel, "\u223c", "\\thicksim"); +defineSymbol(math, ams, rel, "\u2248", "\\thickapprox"); +defineSymbol(math, ams, rel, "\u2ac6", "\\supseteqq"); +defineSymbol(math, ams, rel, "\u22d1", "\\Supset"); +defineSymbol(math, ams, rel, "\u2290", "\\sqsupset"); +defineSymbol(math, ams, rel, "\u227d", "\\succcurlyeq"); +defineSymbol(math, ams, rel, "\u22df", "\\curlyeqsucc"); +defineSymbol(math, ams, rel, "\u227f", "\\succsim"); +defineSymbol(math, ams, rel, "\u2ab8", "\\succapprox"); +defineSymbol(math, ams, rel, "\u22b3", "\\vartriangleright"); +defineSymbol(math, ams, rel, "\u22b5", "\\trianglerighteq"); +defineSymbol(math, ams, rel, "\u22a9", "\\Vdash"); +defineSymbol(math, ams, rel, "\u2223", "\\shortmid"); +defineSymbol(math, ams, rel, "\u2225", "\\shortparallel"); +defineSymbol(math, ams, rel, "\u226c", "\\between"); +defineSymbol(math, ams, rel, "\u22d4", "\\pitchfork"); +defineSymbol(math, ams, rel, "\u221d", "\\varpropto"); +defineSymbol(math, ams, rel, "\u25c0", "\\blacktriangleleft"); +defineSymbol(math, ams, rel, "\u2234", "\\therefore"); +defineSymbol(math, ams, rel, "\u220d", "\\backepsilon"); +defineSymbol(math, ams, rel, "\u25b6", "\\blacktriangleright"); +defineSymbol(math, ams, rel, "\u2235", "\\because"); +defineSymbol(math, ams, rel, "\u22d8", "\\llless"); +defineSymbol(math, ams, rel, "\u22d9", "\\gggtr"); +defineSymbol(math, ams, bin, "\u22b2", "\\lhd"); +defineSymbol(math, ams, bin, "\u22b3", "\\rhd"); +defineSymbol(math, ams, rel, "\u2242", "\\eqsim"); +defineSymbol(math, main, rel, "\u22c8", "\\Join"); +defineSymbol(math, ams, rel, "\u2251", "\\Doteq"); + +// AMS Binary Operators +defineSymbol(math, ams, bin, "\u2214", "\\dotplus"); +defineSymbol(math, ams, bin, "\u2216", "\\smallsetminus"); +defineSymbol(math, ams, bin, "\u22d2", "\\Cap"); +defineSymbol(math, ams, bin, "\u22d3", "\\Cup"); +defineSymbol(math, ams, bin, "\u2a5e", "\\doublebarwedge"); +defineSymbol(math, ams, bin, "\u229f", "\\boxminus"); +defineSymbol(math, ams, bin, "\u229e", "\\boxplus"); +defineSymbol(math, ams, bin, "\u22c7", "\\divideontimes"); +defineSymbol(math, ams, bin, "\u22c9", "\\ltimes"); +defineSymbol(math, ams, bin, "\u22ca", "\\rtimes"); +defineSymbol(math, ams, bin, "\u22cb", "\\leftthreetimes"); +defineSymbol(math, ams, bin, "\u22cc", "\\rightthreetimes"); +defineSymbol(math, ams, bin, "\u22cf", "\\curlywedge"); +defineSymbol(math, ams, bin, "\u22ce", "\\curlyvee"); +defineSymbol(math, ams, bin, "\u229d", "\\circleddash"); +defineSymbol(math, ams, bin, "\u229b", "\\circledast"); +defineSymbol(math, ams, bin, "\u22c5", "\\centerdot"); +defineSymbol(math, ams, bin, "\u22ba", "\\intercal"); +defineSymbol(math, ams, bin, "\u22d2", "\\doublecap"); +defineSymbol(math, ams, bin, "\u22d3", "\\doublecup"); +defineSymbol(math, ams, bin, "\u22a0", "\\boxtimes"); + +// AMS Arrows +defineSymbol(math, ams, rel, "\u21e2", "\\dashrightarrow"); +defineSymbol(math, ams, rel, "\u21e0", "\\dashleftarrow"); +defineSymbol(math, ams, rel, "\u21c7", "\\leftleftarrows"); +defineSymbol(math, ams, rel, "\u21c6", "\\leftrightarrows"); +defineSymbol(math, ams, rel, "\u21da", "\\Lleftarrow"); +defineSymbol(math, ams, rel, "\u219e", "\\twoheadleftarrow"); +defineSymbol(math, ams, rel, "\u21a2", "\\leftarrowtail"); +defineSymbol(math, ams, rel, "\u21ab", "\\looparrowleft"); +defineSymbol(math, ams, rel, "\u21cb", "\\leftrightharpoons"); +defineSymbol(math, ams, rel, "\u21b6", "\\curvearrowleft"); +defineSymbol(math, ams, rel, "\u21ba", "\\circlearrowleft"); +defineSymbol(math, ams, rel, "\u21b0", "\\Lsh"); +defineSymbol(math, ams, rel, "\u21c8", "\\upuparrows"); +defineSymbol(math, ams, rel, "\u21bf", "\\upharpoonleft"); +defineSymbol(math, ams, rel, "\u21c3", "\\downharpoonleft"); +defineSymbol(math, ams, rel, "\u22b8", "\\multimap"); +defineSymbol(math, ams, rel, "\u21ad", "\\leftrightsquigarrow"); +defineSymbol(math, ams, rel, "\u21c9", "\\rightrightarrows"); +defineSymbol(math, ams, rel, "\u21c4", "\\rightleftarrows"); +defineSymbol(math, ams, rel, "\u21a0", "\\twoheadrightarrow"); +defineSymbol(math, ams, rel, "\u21a3", "\\rightarrowtail"); +defineSymbol(math, ams, rel, "\u21ac", "\\looparrowright"); +defineSymbol(math, ams, rel, "\u21b7", "\\curvearrowright"); +defineSymbol(math, ams, rel, "\u21bb", "\\circlearrowright"); +defineSymbol(math, ams, rel, "\u21b1", "\\Rsh"); +defineSymbol(math, ams, rel, "\u21ca", "\\downdownarrows"); +defineSymbol(math, ams, rel, "\u21be", "\\upharpoonright"); +defineSymbol(math, ams, rel, "\u21c2", "\\downharpoonright"); +defineSymbol(math, ams, rel, "\u21dd", "\\rightsquigarrow"); +defineSymbol(math, ams, rel, "\u21dd", "\\leadsto"); +defineSymbol(math, ams, rel, "\u21db", "\\Rrightarrow"); +defineSymbol(math, ams, rel, "\u21be", "\\restriction"); + +defineSymbol(math, main, textord, "\u2018", "`"); +defineSymbol(math, main, textord, "$", "\\$"); +defineSymbol(text, main, textord, "$", "\\$"); +defineSymbol(math, main, textord, "%", "\\%"); +defineSymbol(text, main, textord, "%", "\\%"); +defineSymbol(math, main, textord, "_", "\\_"); +defineSymbol(text, main, textord, "_", "\\_"); +defineSymbol(math, main, textord, "\u2220", "\\angle"); +defineSymbol(math, main, textord, "\u221e", "\\infty"); +defineSymbol(math, main, textord, "\u2032", "\\prime"); +defineSymbol(math, main, textord, "\u25b3", "\\triangle"); +defineSymbol(math, main, textord, "\u0393", "\\Gamma"); +defineSymbol(math, main, textord, "\u0394", "\\Delta"); +defineSymbol(math, main, textord, "\u0398", "\\Theta"); +defineSymbol(math, main, textord, "\u039b", "\\Lambda"); +defineSymbol(math, main, textord, "\u039e", "\\Xi"); +defineSymbol(math, main, textord, "\u03a0", "\\Pi"); +defineSymbol(math, main, textord, "\u03a3", "\\Sigma"); +defineSymbol(math, main, textord, "\u03a5", "\\Upsilon"); +defineSymbol(math, main, textord, "\u03a6", "\\Phi"); +defineSymbol(math, main, textord, "\u03a8", "\\Psi"); +defineSymbol(math, main, textord, "\u03a9", "\\Omega"); +defineSymbol(math, main, textord, "\u00ac", "\\neg"); +defineSymbol(math, main, textord, "\u00ac", "\\lnot"); +defineSymbol(math, main, textord, "\u22a4", "\\top"); +defineSymbol(math, main, textord, "\u22a5", "\\bot"); +defineSymbol(math, main, textord, "\u2205", "\\emptyset"); +defineSymbol(math, ams, textord, "\u2205", "\\varnothing"); +defineSymbol(math, main, mathord, "\u03b1", "\\alpha"); +defineSymbol(math, main, mathord, "\u03b2", "\\beta"); +defineSymbol(math, main, mathord, "\u03b3", "\\gamma"); +defineSymbol(math, main, mathord, "\u03b4", "\\delta"); +defineSymbol(math, main, mathord, "\u03f5", "\\epsilon"); +defineSymbol(math, main, mathord, "\u03b6", "\\zeta"); +defineSymbol(math, main, mathord, "\u03b7", "\\eta"); +defineSymbol(math, main, mathord, "\u03b8", "\\theta"); +defineSymbol(math, main, mathord, "\u03b9", "\\iota"); +defineSymbol(math, main, mathord, "\u03ba", "\\kappa"); +defineSymbol(math, main, mathord, "\u03bb", "\\lambda"); +defineSymbol(math, main, mathord, "\u03bc", "\\mu"); +defineSymbol(math, main, mathord, "\u03bd", "\\nu"); +defineSymbol(math, main, mathord, "\u03be", "\\xi"); +defineSymbol(math, main, mathord, "o", "\\omicron"); +defineSymbol(math, main, mathord, "\u03c0", "\\pi"); +defineSymbol(math, main, mathord, "\u03c1", "\\rho"); +defineSymbol(math, main, mathord, "\u03c3", "\\sigma"); +defineSymbol(math, main, mathord, "\u03c4", "\\tau"); +defineSymbol(math, main, mathord, "\u03c5", "\\upsilon"); +defineSymbol(math, main, mathord, "\u03d5", "\\phi"); +defineSymbol(math, main, mathord, "\u03c7", "\\chi"); +defineSymbol(math, main, mathord, "\u03c8", "\\psi"); +defineSymbol(math, main, mathord, "\u03c9", "\\omega"); +defineSymbol(math, main, mathord, "\u03b5", "\\varepsilon"); +defineSymbol(math, main, mathord, "\u03d1", "\\vartheta"); +defineSymbol(math, main, mathord, "\u03d6", "\\varpi"); +defineSymbol(math, main, mathord, "\u03f1", "\\varrho"); +defineSymbol(math, main, mathord, "\u03c2", "\\varsigma"); +defineSymbol(math, main, mathord, "\u03c6", "\\varphi"); +defineSymbol(math, main, bin, "\u2217", "*"); +defineSymbol(math, main, bin, "+", "+"); +defineSymbol(math, main, bin, "\u2212", "-"); +defineSymbol(math, main, bin, "\u22c5", "\\cdot"); +defineSymbol(math, main, bin, "\u2218", "\\circ"); +defineSymbol(math, main, bin, "\u00f7", "\\div"); +defineSymbol(math, main, bin, "\u00b1", "\\pm"); +defineSymbol(math, main, bin, "\u00d7", "\\times"); +defineSymbol(math, main, bin, "\u2229", "\\cap"); +defineSymbol(math, main, bin, "\u222a", "\\cup"); +defineSymbol(math, main, bin, "\u2216", "\\setminus"); +defineSymbol(math, main, bin, "\u2227", "\\land"); +defineSymbol(math, main, bin, "\u2228", "\\lor"); +defineSymbol(math, main, bin, "\u2227", "\\wedge"); +defineSymbol(math, main, bin, "\u2228", "\\vee"); +defineSymbol(math, main, textord, "\u221a", "\\surd"); +defineSymbol(math, main, open, "(", "("); +defineSymbol(math, main, open, "[", "["); +defineSymbol(math, main, open, "\u27e8", "\\langle"); +defineSymbol(math, main, open, "\u2223", "\\lvert"); +defineSymbol(math, main, open, "\u2225", "\\lVert"); +defineSymbol(math, main, close, ")", ")"); +defineSymbol(math, main, close, "]", "]"); +defineSymbol(math, main, close, "?", "?"); +defineSymbol(math, main, close, "!", "!"); +defineSymbol(math, main, close, "\u27e9", "\\rangle"); +defineSymbol(math, main, close, "\u2223", "\\rvert"); +defineSymbol(math, main, close, "\u2225", "\\rVert"); +defineSymbol(math, main, rel, "=", "="); +defineSymbol(math, main, rel, "<", "<"); +defineSymbol(math, main, rel, ">", ">"); +defineSymbol(math, main, rel, ":", ":"); +defineSymbol(math, main, rel, "\u2248", "\\approx"); +defineSymbol(math, main, rel, "\u2245", "\\cong"); +defineSymbol(math, main, rel, "\u2265", "\\ge"); +defineSymbol(math, main, rel, "\u2265", "\\geq"); +defineSymbol(math, main, rel, "\u2190", "\\gets"); +defineSymbol(math, main, rel, ">", "\\gt"); +defineSymbol(math, main, rel, "\u2208", "\\in"); +defineSymbol(math, main, rel, "\u2209", "\\notin"); +defineSymbol(math, main, rel, "\u2282", "\\subset"); +defineSymbol(math, main, rel, "\u2283", "\\supset"); +defineSymbol(math, main, rel, "\u2286", "\\subseteq"); +defineSymbol(math, main, rel, "\u2287", "\\supseteq"); +defineSymbol(math, ams, rel, "\u2288", "\\nsubseteq"); +defineSymbol(math, ams, rel, "\u2289", "\\nsupseteq"); +defineSymbol(math, main, rel, "\u22a8", "\\models"); +defineSymbol(math, main, rel, "\u2190", "\\leftarrow"); +defineSymbol(math, main, rel, "\u2264", "\\le"); +defineSymbol(math, main, rel, "\u2264", "\\leq"); +defineSymbol(math, main, rel, "<", "\\lt"); +defineSymbol(math, main, rel, "\u2260", "\\ne"); +defineSymbol(math, main, rel, "\u2260", "\\neq"); +defineSymbol(math, main, rel, "\u2192", "\\rightarrow"); +defineSymbol(math, main, rel, "\u2192", "\\to"); +defineSymbol(math, ams, rel, "\u2271", "\\ngeq"); +defineSymbol(math, ams, rel, "\u2270", "\\nleq"); +defineSymbol(math, main, spacing, null, "\\!"); +defineSymbol(math, main, spacing, "\u00a0", "\\ "); +defineSymbol(math, main, spacing, "\u00a0", "~"); +defineSymbol(math, main, spacing, null, "\\,"); +defineSymbol(math, main, spacing, null, "\\:"); +defineSymbol(math, main, spacing, null, "\\;"); +defineSymbol(math, main, spacing, null, "\\enspace"); +defineSymbol(math, main, spacing, null, "\\qquad"); +defineSymbol(math, main, spacing, null, "\\quad"); +defineSymbol(math, main, spacing, "\u00a0", "\\space"); +defineSymbol(math, main, punct, ",", ","); +defineSymbol(math, main, punct, ";", ";"); +defineSymbol(math, main, punct, ":", "\\colon"); +defineSymbol(math, ams, bin, "\u22bc", "\\barwedge"); +defineSymbol(math, ams, bin, "\u22bb", "\\veebar"); +defineSymbol(math, main, bin, "\u2299", "\\odot"); +defineSymbol(math, main, bin, "\u2295", "\\oplus"); +defineSymbol(math, main, bin, "\u2297", "\\otimes"); +defineSymbol(math, main, textord, "\u2202", "\\partial"); +defineSymbol(math, main, bin, "\u2298", "\\oslash"); +defineSymbol(math, ams, bin, "\u229a", "\\circledcirc"); +defineSymbol(math, ams, bin, "\u22a1", "\\boxdot"); +defineSymbol(math, main, bin, "\u25b3", "\\bigtriangleup"); +defineSymbol(math, main, bin, "\u25bd", "\\bigtriangledown"); +defineSymbol(math, main, bin, "\u2020", "\\dagger"); +defineSymbol(math, main, bin, "\u22c4", "\\diamond"); +defineSymbol(math, main, bin, "\u22c6", "\\star"); +defineSymbol(math, main, bin, "\u25c3", "\\triangleleft"); +defineSymbol(math, main, bin, "\u25b9", "\\triangleright"); +defineSymbol(math, main, open, "{", "\\{"); +defineSymbol(text, main, textord, "{", "\\{"); +defineSymbol(math, main, close, "}", "\\}"); +defineSymbol(text, main, textord, "}", "\\}"); +defineSymbol(math, main, open, "{", "\\lbrace"); +defineSymbol(math, main, close, "}", "\\rbrace"); +defineSymbol(math, main, open, "[", "\\lbrack"); +defineSymbol(math, main, close, "]", "\\rbrack"); +defineSymbol(math, main, open, "\u230a", "\\lfloor"); +defineSymbol(math, main, close, "\u230b", "\\rfloor"); +defineSymbol(math, main, open, "\u2308", "\\lceil"); +defineSymbol(math, main, close, "\u2309", "\\rceil"); +defineSymbol(math, main, textord, "\\", "\\backslash"); +defineSymbol(math, main, textord, "\u2223", "|"); +defineSymbol(math, main, textord, "\u2223", "\\vert"); +defineSymbol(math, main, textord, "\u2225", "\\|"); +defineSymbol(math, main, textord, "\u2225", "\\Vert"); +defineSymbol(math, main, rel, "\u2191", "\\uparrow"); +defineSymbol(math, main, rel, "\u21d1", "\\Uparrow"); +defineSymbol(math, main, rel, "\u2193", "\\downarrow"); +defineSymbol(math, main, rel, "\u21d3", "\\Downarrow"); +defineSymbol(math, main, rel, "\u2195", "\\updownarrow"); +defineSymbol(math, main, rel, "\u21d5", "\\Updownarrow"); +defineSymbol(math, math, op, "\u2210", "\\coprod"); +defineSymbol(math, math, op, "\u22c1", "\\bigvee"); +defineSymbol(math, math, op, "\u22c0", "\\bigwedge"); +defineSymbol(math, math, op, "\u2a04", "\\biguplus"); +defineSymbol(math, math, op, "\u22c2", "\\bigcap"); +defineSymbol(math, math, op, "\u22c3", "\\bigcup"); +defineSymbol(math, math, op, "\u222b", "\\int"); +defineSymbol(math, math, op, "\u222b", "\\intop"); +defineSymbol(math, math, op, "\u222c", "\\iint"); +defineSymbol(math, math, op, "\u222d", "\\iiint"); +defineSymbol(math, math, op, "\u220f", "\\prod"); +defineSymbol(math, math, op, "\u2211", "\\sum"); +defineSymbol(math, math, op, "\u2a02", "\\bigotimes"); +defineSymbol(math, math, op, "\u2a01", "\\bigoplus"); +defineSymbol(math, math, op, "\u2a00", "\\bigodot"); +defineSymbol(math, math, op, "\u222e", "\\oint"); +defineSymbol(math, math, op, "\u2a06", "\\bigsqcup"); +defineSymbol(math, math, op, "\u222b", "\\smallint"); +defineSymbol(text, main, inner, "\u2026", "\\textellipsis"); +defineSymbol(math, main, inner, "\u2026", "\\mathellipsis"); +defineSymbol(text, main, inner, "\u2026", "\\ldots"); +defineSymbol(math, main, inner, "\u2026", "\\ldots"); +defineSymbol(math, main, inner, "\u22ef", "\\cdots"); +defineSymbol(math, main, inner, "\u22f1", "\\ddots"); +defineSymbol(math, main, textord, "\u22ee", "\\vdots"); +defineSymbol(math, main, accent, "\u00b4", "\\acute"); +defineSymbol(math, main, accent, "\u0060", "\\grave"); +defineSymbol(math, main, accent, "\u00a8", "\\ddot"); +defineSymbol(math, main, accent, "\u007e", "\\tilde"); +defineSymbol(math, main, accent, "\u00af", "\\bar"); +defineSymbol(math, main, accent, "\u02d8", "\\breve"); +defineSymbol(math, main, accent, "\u02c7", "\\check"); +defineSymbol(math, main, accent, "\u005e", "\\hat"); +defineSymbol(math, main, accent, "\u20d7", "\\vec"); +defineSymbol(math, main, accent, "\u02d9", "\\dot"); +defineSymbol(math, main, mathord, "\u0131", "\\imath"); +defineSymbol(math, main, mathord, "\u0237", "\\jmath"); + +defineSymbol(text, main, textord, "\u2013", "--"); +defineSymbol(text, main, textord, "\u2014", "---"); +defineSymbol(text, main, textord, "\u2018", "`"); +defineSymbol(text, main, textord, "\u2019", "'"); +defineSymbol(text, main, textord, "\u201c", "``"); +defineSymbol(text, main, textord, "\u201d", "''"); +defineSymbol(math, main, textord, "\u00b0", "\\degree"); +defineSymbol(text, main, textord, "\u00b0", "\\degree"); +defineSymbol(math, main, mathord, "\u00a3", "\\pounds"); +defineSymbol(math, ams, textord, "\u2720", "\\maltese"); +defineSymbol(text, ams, textord, "\u2720", "\\maltese"); + +defineSymbol(text, main, spacing, "\u00a0", "\\ "); +defineSymbol(text, main, spacing, "\u00a0", " "); +defineSymbol(text, main, spacing, "\u00a0", "~"); + +// There are lots of symbols which are the same, so we add them in afterwards. +var i; +var ch; + +// All of these are textords in math mode +var mathTextSymbols = "0123456789/@.\""; +for (i = 0; i < mathTextSymbols.length; i++) { + ch = mathTextSymbols.charAt(i); + defineSymbol(math, main, textord, ch, ch); +} + +// All of these are textords in text mode +var textSymbols = "0123456789!@*()-=+[]\";:?/.,"; +for (i = 0; i < textSymbols.length; i++) { + ch = textSymbols.charAt(i); + defineSymbol(text, main, textord, ch, ch); +} + +// All of these are textords in text mode, and mathords in math mode +var letters = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"; +for (i = 0; i < letters.length; i++) { + ch = letters.charAt(i); + defineSymbol(math, main, mathord, ch, ch); + defineSymbol(text, main, textord, ch, ch); +} + +// Latin-1 letters +for (i = 0x00C0; i <= 0x00D6; i++) { + ch = String.fromCharCode(i); + defineSymbol(text, main, textord, ch, ch); +} + +for (i = 0x00D8; i <= 0x00F6; i++) { + ch = String.fromCharCode(i); + defineSymbol(text, main, textord, ch, ch); +} + +for (i = 0x00F8; i <= 0x00FF; i++) { + ch = String.fromCharCode(i); + defineSymbol(text, main, textord, ch, ch); +} + +// Cyrillic +for (i = 0x0410; i <= 0x044F; i++) { + ch = String.fromCharCode(i); + defineSymbol(text, main, textord, ch, ch); +} + +// Unicode versions of existing characters +defineSymbol(text, main, textord, "\u2013", "–"); +defineSymbol(text, main, textord, "\u2014", "—"); +defineSymbol(text, main, textord, "\u2018", "‘"); +defineSymbol(text, main, textord, "\u2019", "’"); +defineSymbol(text, main, textord, "\u201c", "“"); +defineSymbol(text, main, textord, "\u201d", "”"); + +},{}],24:[function(require,module,exports){ +var hangulRegex = /[\uAC00-\uD7AF]/; + +// This regex combines +// - Hiragana: [\u3040-\u309F] +// - Katakana: [\u30A0-\u30FF] +// - CJK ideograms: [\u4E00-\u9FAF] +// - Hangul syllables: [\uAC00-\uD7AF] +// Notably missing are halfwidth Katakana and Romanji glyphs. +var cjkRegex = + /[\u3040-\u309F]|[\u30A0-\u30FF]|[\u4E00-\u9FAF]|[\uAC00-\uD7AF]/; + +module.exports = { + cjkRegex: cjkRegex, + hangulRegex: hangulRegex +}; + +},{}],25:[function(require,module,exports){ +/** + * This file contains a list of utility functions which are useful in other + * files. + */ + +/** + * Provide an `indexOf` function which works in IE8, but defers to native if + * possible. + */ +var nativeIndexOf = Array.prototype.indexOf; +var indexOf = function(list, elem) { + if (list == null) { + return -1; + } + if (nativeIndexOf && list.indexOf === nativeIndexOf) { + return list.indexOf(elem); + } + var i = 0; + var l = list.length; + for (; i < l; i++) { + if (list[i] === elem) { + return i; + } + } + return -1; +}; + +/** + * Return whether an element is contained in a list + */ +var contains = function(list, elem) { + return indexOf(list, elem) !== -1; +}; + +/** + * Provide a default value if a setting is undefined + */ +var deflt = function(setting, defaultIfUndefined) { + return setting === undefined ? defaultIfUndefined : setting; +}; + +// hyphenate and escape adapted from Facebook's React under Apache 2 license + +var uppercase = /([A-Z])/g; +var hyphenate = function(str) { + return str.replace(uppercase, "-$1").toLowerCase(); +}; + +var ESCAPE_LOOKUP = { + "&": "&", + ">": ">", + "<": "<", + "\"": """, + "'": "'" +}; + +var ESCAPE_REGEX = /[&><"']/g; + +function escaper(match) { + return ESCAPE_LOOKUP[match]; +} + +/** + * Escapes text to prevent scripting attacks. + * + * @param {*} text Text value to escape. + * @return {string} An escaped string. + */ +function escape(text) { + return ("" + text).replace(ESCAPE_REGEX, escaper); +} + +/** + * A function to set the text content of a DOM element in all supported + * browsers. Note that we don't define this if there is no document. + */ +var setTextContent; +if (typeof document !== "undefined") { + var testNode = document.createElement("span"); + if ("textContent" in testNode) { + setTextContent = function(node, text) { + node.textContent = text; + }; + } else { + setTextContent = function(node, text) { + node.innerText = text; + }; + } +} + +/** + * A function to clear a node. + */ +function clearNode(node) { + setTextContent(node, ""); +} + +module.exports = { + contains: contains, + deflt: deflt, + escape: escape, + hyphenate: hyphenate, + indexOf: indexOf, + setTextContent: setTextContent, + clearNode: clearNode +}; + +},{}]},{},[1])(1) +}); \ No newline at end of file diff --git a/public/katex/katex.min.css b/public/katex/katex.min.css new file mode 100644 index 000000000..d6fb8374d --- /dev/null +++ b/public/katex/katex.min.css @@ -0,0 +1 @@ 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*[a-z]{0,2}$/,"size")}else{t=this.parseStringGroup("size",e)}if(!t){return null}var r=/([-+]?) *(\d+(?:\.\d*)?|\.\d+) *([a-z]{2})/.exec(t.text);if(!r){throw new p("Invalid size: '"+t.text+"'",t)}var a={number:+(r[1]+r[2]),unit:r[3]};if(a.unit!=="em"&&a.unit!=="ex"&&a.unit!=="mu"){throw new p("Invalid unit: '"+a.unit+"'",t)}return new m(new c("color",a,this.mode),false)};h.prototype.parseGroup=function(e){var t=this.nextToken;if(this.nextToken.text===(e?"[":"{")){this.consume();var r=this.parseExpression(false,e?"]":null);var a=this.nextToken;this.expect(e?"]":"}");if(this.mode==="text"){this.formLigatures(r)}return new m(new c("ordgroup",r,this.mode,t,a),false)}else{return e?null:this.parseSymbol()}};h.prototype.formLigatures=function(e){var t;var r=e.length-1;for(t=0;t0?t-1:0]}l.prototype.sup=function(){return y[x[this.id]]};l.prototype.sub=function(){return y[b[this.id]]};l.prototype.fracNum=function(){return y[w[this.id]]};l.prototype.fracDen=function(){return y[k[this.id]]};l.prototype.cramp=function(){return y[z[this.id]]};l.prototype.cls=function(){return d[this.size]+(this.cramped?" cramped":" uncramped")};l.prototype.reset=function(){return g[this.size]};l.prototype.isTight=function(){return this.size>=2};var o=0;var u=1;var p=2;var h=3;var c=4;var m=5;var f=6;var v=7;var d=["displaystyle textstyle","textstyle","scriptstyle","scriptscriptstyle"];var g=["reset-textstyle","reset-textstyle","reset-scriptstyle","reset-scriptscriptstyle"];var y=[new l(o,0,1,false),new l(u,0,1,true),new l(p,1,1,false),new l(h,1,1,true),new l(c,2,.7,false),new l(m,2,.7,true),new l(f,3,.5,false),new l(v,3,.5,true)];var x=[c,m,c,m,f,v,f,v];var b=[m,m,m,m,v,v,v,v];var w=[p,h,c,m,f,v,f,v];var k=[h,h,m,m,v,v,v,v];var z=[u,u,h,h,m,m,v,v];t.exports={DISPLAY:y[o],TEXT:y[p],SCRIPT:y[c],SCRIPTSCRIPT:y[f]}},{"./fontMetrics.js":17}],10:[function(e,t,r){var a=e("./domTree");var i=e("./fontMetrics");var n=e("./symbols");var s=e("./utils");var l=["\\Gamma","\\Delta","\\Theta","\\Lambda","\\Xi","\\Pi","\\Sigma","\\Upsilon","\\Phi","\\Psi","\\Omega"];var o=["\u0131","\u0237","\xa3"];var u=function(e,t,r,s,l){if(n[r][e]&&n[r][e].replace){e=n[r][e].replace}var o=i.getCharacterMetrics(e,t);var u;if(o){var p=o.italic;if(r==="text"){p=0}u=new a.symbolNode(e,o.height,o.depth,p,o.skew,l)}else{typeof console!=="undefined"&&console.warn("No character metrics for '"+e+"' in style '"+t+"'");u=new a.symbolNode(e,0,0,0,0,l)}if(s){if(s.style.isTight()){u.classes.push("mtight")}if(s.getColor()){u.style.color=s.getColor()}}return u};var p=function(e,t,r,a){if(e==="\\"||n[t][e].font==="main"){return u(e,"Main-Regular",t,r,a)}else{return u(e,"AMS-Regular",t,r,a.concat(["amsrm"]))}};var h=function(e,t,r,a,i){if(i==="mathord"){return c(e,t,r,a)}else if(i==="textord"){return u(e,"Main-Regular",t,r,a.concat(["mathrm"]))}else{throw new Error("unexpected type: "+i+" in mathDefault")}};var c=function(e,t,r,a){if(/[0-9]/.test(e.charAt(0))||s.contains(o,e)||s.contains(l,e)){return u(e,"Main-Italic",t,r,a.concat(["mainit"]))}else{return u(e,"Math-Italic",t,r,a.concat(["mathit"]))}};var m=function(e,t,r){var a=e.mode;var l=e.value;if(n[a][l]&&n[a][l].replace){l=n[a][l].replace}var p=["mord"];var m=t.font;if(m){if(m==="mathit"||s.contains(o,l)){return c(l,a,t,p)}else{var f=k[m].fontName;if(i.getCharacterMetrics(l,f)){return u(l,f,a,t,p.concat([m]))}else{return h(l,a,t,p,r)}}}else{return h(l,a,t,p,r)}};var f=function(e){var t=0;var r=0;var a=0;if(e.children){for(var i=0;it){t=e.children[i].height}if(e.children[i].depth>r){r=e.children[i].depth}if(e.children[i].maxFontSize>a){a=e.children[i].maxFontSize}}}e.height=t;e.depth=r;e.maxFontSize=a};var v=function(e,t,r){var i=new a.span(e,t,r);f(i);return i};var d=function(e,t){e.children=t.concat(e.children);f(e)};var g=function(e){var t=new a.documentFragment(e);f(t);return t};var y=function(e,t){var r=v([],[new a.symbolNode("\u200b")]);r.style.fontSize=t/e.style.sizeMultiplier+"em";var i=v(["fontsize-ensurer","reset-"+e.size,"size5"],[r]);return i};var x=function(e,t,r,i){var n;var s;var l;if(t==="individualShift"){var o=e;e=[o[0]];n=-o[0].shift-o[0].elem.depth;s=n;for(l=1;l0){f+=T;v-=T}}S=n.makeVList([{type:"elem",elem:s,shift:v},{type:"elem",elem:a,shift:-f}],"individualShift",null,t);if(r instanceof l.symbolNode){S.children[0].style.marginLeft=-r.italic+"em"}S.children[0].style.marginRight=k;S.children[1].style.marginRight=k}var A=d(r)||"mord";return p([A],[r,p(["msupsub"],[S])],t)};w.genfrac=function(e,t){var r=t.style;if(e.value.size==="display"){r=i.DISPLAY}else if(e.value.size==="text"){r=i.TEXT}var a=r.fracNum();var l=r.fracDen();var u;u=t.withStyle(a);var h=z(e.value.numer,u);var c=p([r.reset(),a.cls()],[h],u);u=t.withStyle(l);var m=z(e.value.denom,u);var f=p([r.reset(),l.cls()],[m],u);var v;if(e.value.hasBarLine){v=o.metrics.defaultRuleThickness/t.style.sizeMultiplier}else{v=0}var d;var g;var y;if(r.size===i.DISPLAY.size){d=r.metrics.num1;if(v>0){g=3*v}else{g=7*o.metrics.defaultRuleThickness}y=r.metrics.denom1}else{if(v>0){d=r.metrics.num2;g=v}else{d=r.metrics.num3;g=3*o.metrics.defaultRuleThickness}y=r.metrics.denom2}var x;if(v===0){var w=d-h.depth-(m.height-y);if(w0){N+=x;if(M=l){continue}var I;if(i>0||e.value.hskipBeforeAndAfter){I=u.deflt(O.pregap,f);if(I!==0){C=p(["arraycolsep"],[]);C.style.width=I+"em";E.push(C)}}var L=[];for(r=0;ra.height+a.depth+c){c=(c+d-a.height-a.depth)/2}var g=-(a.height+c+l)+v.height;v.style.top=g+"em";v.height-=g;v.depth+=g;var y;if(a.height===0&&a.depth===0){y=p()}else{y=n.makeVList([{type:"elem",elem:a},{type:"kern",size:c},{type:"elem",elem:u},{type:"kern",size:l}],"firstBaseline",null,t)}if(!e.value.index){return p(["mord","sqrt"],[v,y],t)}else{var x=t.withStyle(i.SCRIPTSCRIPT);var b=z(e.value.index,x);var w=p([r.reset(),i.SCRIPTSCRIPT.cls()],[b],x);var k=Math.max(v.height,y.height);var S=Math.max(v.depth,y.depth);var M=.6*(k-S);var T=n.makeVList([{type:"elem",elem:w}],"shift",-M,t);var A=p(["root"],[T]);return p(["mord","sqrt"],[A,v,y],t)}};w.sizing=function(e,t){var r=v(e.value.value,t.withSize(e.value.size),false);var a=t.style;var i=n.sizingMultiplier[e.value.size];i=i*a.sizeMultiplier;for(var s=0;s","\\langle","\\rangle","/","\\backslash","\\lt","\\gt"];var b=[0,1.2,1.8,2.4,3];var w=function(e,t,r,i,n){if(e==="<"||e==="\\lt"){e="\\langle"}else if(e===">"||e==="\\gt"){e="\\rangle"}if(o.contains(g,e)||o.contains(x,e)){return f(e,t,false,r,i,n)}else if(o.contains(y,e)){return d(e,b[t],false,r,i,n)}else{throw new a("Illegal delimiter: '"+e+"'")}};var k=[{type:"small",style:i.SCRIPTSCRIPT},{type:"small",style:i.SCRIPT},{type:"small",style:i.TEXT},{type:"large",size:1},{type:"large",size:2},{type:"large",size:3},{type:"large",size:4}];var z=[{type:"small",style:i.SCRIPTSCRIPT},{type:"small",style:i.SCRIPT},{type:"small",style:i.TEXT},{type:"stack"}];var S=[{type:"small",style:i.SCRIPTSCRIPT},{type:"small",style:i.SCRIPT},{type:"small",style:i.TEXT},{type:"large",size:1},{type:"large",size:2},{type:"large",size:3},{type:"large",size:4},{type:"stack"}];var M=function(e){if(e.type==="small"){return"Main-Regular"}else if(e.type==="large"){return"Size"+e.size+"-Regular"}else if(e.type==="stack"){return"Size4-Regular"}};var T=function(e,t,r,a){var i=Math.min(2,3-a.style.size);for(var n=i;nt){return r[n]}}return r[r.length-1]};var A=function(e,t,r,a,i,n){if(e==="<"||e==="\\lt"){e="\\langle"}else if(e===">"||e==="\\gt"){e="\\rangle"}var s;if(o.contains(x,e)){s=k}else if(o.contains(g,e)){s=S}else{s=z}var l=T(e,t,s,a);if(l.type==="small"){return m(e,l.style,r,a,i,n)}else if(l.type==="large"){return f(e,l.size,r,a,i,n)}else if(l.type==="stack"){return d(e,t,r,a,i,n)}};var N=function(e,t,r,a,i,n){var l=a.style.metrics.axisHeight*a.style.sizeMultiplier;var o=901;var u=5/s.metrics.ptPerEm;var p=Math.max(t-l,r+l);var h=Math.max(p/500*o,2*p-u);return A(e,h,true,a,i,n)};t.exports={sizedDelim:w,customSizedDelim:A,leftRightDelim:N}},{"./ParseError":6,"./Style":9,"./buildCommon":10,"./fontMetrics":17,"./symbols":23,"./utils":25}],15:[function(e,t,r){var a=e("./unicodeRegexes");var i=e("./utils");var n=function(e){e=e.slice();for(var t=e.length-1;t>=0;t--){if(!e[t]){e.splice(t,1)}}return e.join(" ")};function s(e,t,r){this.classes=e||[];this.children=t||[];this.height=0;this.depth=0;this.maxFontSize=0;this.style={};this.attributes={};if(r){if(r.style.isTight()){this.classes.push("mtight")}if(r.getColor()){this.style.color=r.getColor()}}}s.prototype.setAttribute=function(e,t){this.attributes[e]=t};s.prototype.tryCombine=function(e){return false};s.prototype.toNode=function(){var e=document.createElement("span");e.className=n(this.classes);for(var t in this.style){if(Object.prototype.hasOwnProperty.call(this.style,t)){e.style[t]=this.style[t]}}for(var r in this.attributes){if(Object.prototype.hasOwnProperty.call(this.attributes,r)){e.setAttribute(r,this.attributes[r])}}for(var a=0;a";return e};function l(e){this.children=e||[];this.height=0;this.depth=0;this.maxFontSize=0}l.prototype.toNode=function(){var e=document.createDocumentFragment();for(var t=0;t0||n(this.classes)!==n(e.classes)||this.skew!==e.skew||this.maxFontSize!==e.maxFontSize){return false}for(var t in this.style){if(this.style.hasOwnProperty(t)&&this.style[t]!==e.style[t]){return false}}for(t in e.style){if(e.style.hasOwnProperty(t)&&this.style[t]!==e.style[t]){return false}}this.value+=e.value;this.height=Math.max(this.height,e.height);this.depth=Math.max(this.depth,e.depth);this.italic=e.italic;return true};u.prototype.toNode=function(){var e=document.createTextNode(this.value);var t=null;if(this.italic>0){t=document.createElement("span");t.style.marginRight=this.italic+"em"}if(this.classes.length>0){t=t||document.createElement("span");t.className=n(this.classes)}for(var r in this.style){if(this.style.hasOwnProperty(r)){t=t||document.createElement("span");t.style[r]=this.style[r]}}if(t){t.appendChild(e);return t}else{return e}};u.prototype.toMarkup=function(){var e=false;var t="0){r+="margin-right:"+this.italic+"em;"}for(var a in this.style){if(this.style.hasOwnProperty(a)){r+=i.hyphenate(a)+":"+this.style[a]+";"}}if(r){e=true;t+=' style="'+i.escape(r)+'"'}var s=i.escape(this.value);if(e){t+=">";t+=s;t+="";return t}else{return s}};t.exports={span:s,documentFragment:l,symbolNode:u}},{"./unicodeRegexes":24,"./utils":25}],16:[function(e,t,r){var a=e("./parseData");var i=e("./ParseError");var n=e("./Style");var s=a.ParseNode;function l(e,t){var r=[];var a=[r];var n=[];while(true){var l=e.parseExpression(false,null);r.push(new s("ordgroup",l,e.mode));var o=e.nextToken.text;if(o==="&"){e.consume()}else if(o==="\\end"){break}else if(o==="\\\\"||o==="\\cr"){var u=e.parseFunction();n.push(u.value.size);r=[];a.push(r)}else{throw new i("Expected & or \\\\ or 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s=0;var l=0;var o=0;var u=0;var p=.431;var h=1;var c=0;var m=.04;var f=.111;var v=.166;var d=.2;var g=.6;var y=.1;var x=10;var b=2/x;var w={defaultRuleThickness:m,bigOpSpacing1:f,bigOpSpacing2:v,bigOpSpacing3:d,bigOpSpacing4:g,bigOpSpacing5:y,ptPerEm:x,doubleRuleSep:b};var k=e("./fontMetricsData");var 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-195px -2px no-repeat; height: 18px; cursor: pointer} +.zbg_latex { background: url("/images/edu_user/richEditer.png") -315px -3px no-repeat;height: 18px;cursor: pointer;} +.latex{position:relative;top: 4px;} diff --git a/public/stylesheets/css/public.css b/public/stylesheets/css/public.css index 336213a08..0ead0403b 100644 --- a/public/stylesheets/css/public.css +++ b/public/stylesheets/css/public.css @@ -9,6 +9,7 @@ .wrap-big {width:980px; background:#fff; padding:10px; margin-bottom:10px;} /*资源库*/ .resources {width:973px; background-color:#ffffff; padding:15px; float: right;} +.eduResources {width:1200px; background-color:#ffffff; padding:15px; margin: 0 auto;} .resourcesBanner {width:730px; height:40px; background-color:#eaeaea; margin-bottom:10px;} .bannerName {background:#3b94d6; color:#ffffff; height:40px; line-height:40px; width:90px; text-align:center; font-weight:normal; vertical-align:middle; font-size: 16px; float:left;} .resourcesSelect {width:30px; height:24px; float:right; position:relative; margin-top:-6px;} diff --git a/public/stylesheets/css/structure.css b/public/stylesheets/css/structure.css index 635a126e8..33f9dc178 100644 --- a/public/stylesheets/css/structure.css +++ b/public/stylesheets/css/structure.css @@ -182,8 +182,10 @@ a.homepageTypeUApply {background:url(/images/homepage_icon.png) -91px -582px no- a.postTypeGrey {color:#888888;} a.postTypeGrey:hover {color:#3b94d6;} .homepagePostBrief {width:965px; margin:0px auto; position:relative;} +.eduHomepagePostBrief {width:1200px; margin:0px auto; position:relative;} .homepagePostPortrait {float:left; width:50px;} .homepagePostDes {float:left; width:890px; margin-left:15px; } +.eduHomepagePostDes {float:left; width:92%; margin-left:15px; } .homepagePostTo {font-size:14px; color:#484848; margin-bottom:5px; margin-right: 20px;} .homepagePostTitle {font-size:14px; color:#484848; margin-bottom:5px; font-weight:bold;} .homepagePostSubmitContainer {height:25px; margin-top: 8px; margin-bottom: 5px;} @@ -198,13 +200,16 @@ a.postTypeGrey:hover {color:#3b94d6;} .homepagePostDeadline {font-size:12px; color:#888888; float:left; margin-top: 2px;} .homepagePostDate {font-size:12px; color:#888888;margin-bottom: 5px;} .homepagePostReply {width:965px; margin:0px auto; background-color:#f1f1f1; margin-top:10px;} +.eduHomepagePostReply {width:1200px; margin:0px auto; background-color:#f1f1f1; margin-top:10px;} .homepagePostReplyBanner {width:963px; height:33px; border:1px solid #e4e4e4; line-height:33px; vertical-align:middle; font-size:12px; color:#888888; position: relative;} +.eduhomepagePostReplyBanner {width: 99.8%; height:33px; border:1px solid #e4e4e4; line-height:33px; vertical-align:middle; font-size:12px; color:#888888; position: relative;} .borderBottomNone {border-bottom:none !important;} .topBorder {border-top: 1px solid #e4e4e4;} .homepagePostReplyBannerCount{width:255px; display:inline-block; margin-left:15px;} .homepagePostReplyBannerTime{width:85px; display:inline-block;} .homepagePostReplyBannerMore{width:315px; display:inline-block; text-align:right; float:right; padding-right:15px;} .homepagePostReplyInputContainer {width:880px; float:left;} +.eduHomepagePostReplyInputContainer {width:92%; float:left;} .homepagePostReplyInput {width:663px; height:45px; max-width:663px; max-height:45px; border:1px solid #d9d9d9; outline:none; margin:20px auto 10px auto;} .homepagePostReplyEmotion {background:url(../images/homepage_icon.png) -90px -88px no-repeat; width:50px; height:24px; float:left; padding-left:30px;} .homepagePostReplySubmit {float:right; width:45px; height:24px; text-align:center; line-height:24px; vertical-align:middle; font-size:12px; color:#ffffff; background-color:#3b94d6;} @@ -217,6 +222,7 @@ a.postReplyCancel:hover {color:#ffffff;} .homepagePostReplyInputContainer2 {width:595px; margin:0px auto;} .homepagePostReplyInput2 {width:588px; height:45px; max-width:588px; max-height:45px; border:1px solid #d9d9d9; outline:none; margin:0px auto 10px auto;} .homepagePostReplyContainer {border-bottom:1px solid #e3e3e3; width:930px; margin:0px auto; margin-top:15px; min-height:50px;} +.eduhomepagePostReplyContainer {border-bottom:1px solid #e3e3e3; width:98%; margin:0px auto; padding:10px; min-height:50px;} .homepagePostSetting {position:absolute; width:20px; height:20px; right:0px; top:0px;} .homepagePostSetting ul li:hover ul {display:block;} .homepagePostSettingIcon {background:url(../images/homepage_icon.png) -93px -5px no-repeat; width:20px; height:20px;} @@ -233,6 +239,7 @@ a.postOptionLink2:hover {color:#ffffff; background-color:#3b94d6;} .homepagePostReplyPortrait {float:left; width:33px;} .imageFuzzy {filter:alpha(opacity=50); -moz-opacity:0.5; -khtml-opacity:0.5;opacity: 0.5;} .homepagePostReplyDes {float:left; width:880px; margin-left:15px;} +.eduHomepagePostReplyDes {float:left; width: 92%; margin-left:15px;} .homepagePostReplyPublisher {font-size:12px; color:#888888; margin-bottom:5px;} .homepagePostReplyContent {font-size:12px; color:#484848; margin:3px 5px 12px 5px;font: 14px/1.5 "sans serif",tahoma,verdana,helvetica;font-family:"微软雅黑","宋体";} .homepagePostReplyContent ol li{list-style-type: decimal;margin-left: 40px;} @@ -284,6 +291,7 @@ a:hover.qx_btn{color:#3b94d6;} .homepageLeft {width:240px; float:left; margin-right:10px; margin-bottom:10px;} .homepageLeft-new {width:240px; margin-bottom:10px;} .homepageRight {width:1010px; float:left; margin-top:10px; margin-bottom:10px;} +.eduHomepageRight {width:100%; margin-top:10px; margin-bottom:10px;} .homepagePortraitContainer {width:208px; border:1px solid #dddddd; background-color:#ffffff; margin-top:10px; padding:15px;} .homepagePortraitImage {width:78px; height:78px; position:relative; border:1px solid #cbcbcb; padding: 2px;} .homepagePortraitImage:hover {border:1px solid #3b94d6;} @@ -323,6 +331,7 @@ a.homepageMenuControl {float:left; width:180px;} .homepageLeftLabelContainer {width:238px; border:1px solid #dddddd; background-color:#ffffff; margin-top:10px;} .homepageLabelText {color:#484848; font-size:16px; margin-left:10px; margin-bottom:12px; display:block;} .homepageRightBanner {width:975px; margin:0px auto; float:right; background-color: #ffffff; padding:10px 15px;border-bottom:1px solid #eee; } +.eduhomepageRightBanner {width:1200px; margin:0px auto; height:30px; background-color: #ffffff; padding:10px 15px;border-bottom:1px solid #eee; } .homepagetopBanner {width:750px; height: 100px; margin:0px auto; float:right; background-color: #90C5EC; border:1px solid #dddddd;} .homepageRightBannerImg{width:1000px; margin:0px auto; height: 60px; margin-top: 10px; background:url(/images/TeachersDay.jpg)} a.homepageWhite {color:#ffffff;}