Add html::EscapeText for std::string; use this function to escape text in message bubbles.

llvm-svn: 48884

clang/Driver/HTMLDiagnostics.cpp

@@ -117,8 +117,8 @@ void HTMLDiagnostics::HandlePathDiagnostic(const PathDiagnostic& D) {
     std::ostringstream os;
     const FileEntry* Entry = SMgr.getFileEntryForID(FileID);
     
-    os << "<h1>" << Entry->getDir()->getName() << "/"
+    os << "<h1>" << html::EscapeText(Entry->getDir()->getName())
-       << Entry->getName() << "</h1>\n";
+       << "/" << html::EscapeText(Entry->getName()) << "</h1>\n";
 
     R.InsertStrBefore(SourceLocation::getFileLoc(FileID, 0), os.str());
   }  
@@ -200,7 +200,7 @@ void HTMLDiagnostics::HandlePiece(Rewriter& R,
      << "<div class=\"msg\" style=\"margin-left:"
      << ColNo << "ex\">";
   
-  os << P.getString() << "</div></td></tr>";
+  os << html::EscapeText(P.getString()) << "</div></td></tr>";
   
   // Insert the new html.
   

clang/include/clang/Rewrite/HTMLRewrite.h

@@ -16,6 +16,7 @@
 #define LLVM_CLANG_HTMLREWRITER_H
 
 #include "clang/Basic/SourceLocation.h"
+#include <string>
 
 namespace clang {
   
@@ -24,7 +25,8 @@ class Rewriter;
 namespace html {
 
   void EscapeText(Rewriter& R, unsigned FileID, bool EscapeSpaces = false);
-  
+  std::string EscapeText(const std::string& s, bool EscapeSpaces = false);
+
   void AddLineNumbers(Rewriter& R, unsigned FileID);  
   
   void AddHeaderFooterInternalBuiltinCSS(Rewriter& R, unsigned FileID);

clang/lib/Rewrite/HTMLRewrite.cpp

@@ -46,6 +46,32 @@ void html::EscapeText(Rewriter& R, unsigned FileID, bool EscapeSpaces) {
   }
 }
 
+std::string html::EscapeText(const std::string& s, bool EscapeSpaces) {
+  
+  unsigned len = s.size();
+  std::ostringstream os;
+  
+  for (unsigned i = 0 ; i < len; ++i) {
+    
+    char c = s[i];
+    
+    switch (c) {
+      default:
+        os << c; break;
+        
+      case ' ':
+        if (EscapeSpaces) os << "&#32;";
+        break;
+        
+        case '<': os << "&lt;"; break;
+        case '>': os << "&gt;"; break;
+        case '&': os << "&amp;"; break;
+    }
+  }
+  
+  return os.str();
+}
+
 static void AddLineNumber(Rewriter& R, unsigned LineNo,
                           SourceLocation B, SourceLocation E) {