forked from OSchip/llvm-project
1960 lines
64 KiB
C++
1960 lines
64 KiB
C++
// -*- C++ -*-
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//===--------------------------- regex ------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP_REGEX
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#define _LIBCPP_REGEX
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/*
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regex synopsis
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#include <initializer_list>
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namespace std
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{
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namespace regex_constants
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{
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emum syntax_option_type
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{
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icase = unspecified,
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nosubs = unspecified,
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optimize = unspecified,
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collate = unspecified,
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ECMAScript = unspecified,
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basic = unspecified,
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extended = unspecified,
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awk = unspecified,
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grep = unspecified,
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egrep = unspecified
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};
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constexpr syntax_option_type operator~(syntax_option_type f);
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constexpr syntax_option_type operator&(syntax_option_type lhs, syntax_option_type rhs);
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constexpr syntax_option_type operator|(syntax_option_type lhs, syntax_option_type rhs);
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enum match_flag_type
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{
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match_default = 0,
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match_not_bol = unspecified,
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match_not_eol = unspecified,
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match_not_bow = unspecified,
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match_not_eow = unspecified,
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match_any = unspecified,
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match_not_null = unspecified,
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match_continuous = unspecified,
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match_prev_avail = unspecified,
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format_default = 0,
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format_sed = unspecified,
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format_no_copy = unspecified,
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format_first_only = unspecified
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};
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constexpr match_flag_type operator~(match_flag_type f);
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constexpr match_flag_type operator&(match_flag_type lhs, match_flag_type rhs);
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constexpr match_flag_type operator|(match_flag_type lhs, match_flag_type rhs);
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enum error_type
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{
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error_collate = unspecified,
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error_ctype = unspecified,
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error_escape = unspecified,
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error_backref = unspecified,
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error_brack = unspecified,
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error_paren = unspecified,
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error_brace = unspecified,
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error_badbrace = unspecified,
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error_range = unspecified,
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error_space = unspecified,
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error_badrepeat = unspecified,
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error_complexity = unspecified,
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error_stack = unspecified
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};
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} // regex_constants
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class regex_error
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: public runtime_error
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{
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public:
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explicit regex_error(regex_constants::error_type ecode);
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regex_constants::error_type code() const;
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};
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template <class charT>
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struct regex_traits
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{
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public:
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typedef charT char_type;
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typedef basic_string<char_type> string_type;
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typedef locale locale_type;
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typedef /bitmask_type/ char_class_type;
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regex_traits();
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static size_t length(const char_type* p);
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charT translate(charT c) const;
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charT translate_nocase(charT c) const;
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template <class ForwardIterator>
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string_type
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transform(ForwardIterator first, ForwardIterator last) const;
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template <class ForwardIterator>
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string_type
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transform_primary( ForwardIterator first, ForwardIterator last) const;
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template <class ForwardIterator>
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string_type
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lookup_collatename(ForwardIterator first, ForwardIterator last) const;
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template <class ForwardIterator>
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char_class_type
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lookup_classname(ForwardIterator first, ForwardIterator last,
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bool icase = false) const;
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bool isctype(charT c, char_class_type f) const;
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int value(charT ch, int radix) const;
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locale_type imbue(locale_type l);
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locale_type getloc()const;
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};
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template <class charT, class traits = regex_traits<charT>>
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class basic_regex
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{
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public:
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// types:
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typedef charT value_type;
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typedef regex_constants::syntax_option_type flag_type;
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typedef typename traits::locale_type locale_type;
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// constants:
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static constexpr regex_constants::syntax_option_type icase = regex_constants::icase;
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static constexpr regex_constants::syntax_option_type nosubs = regex_constants::nosubs;
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static constexpr regex_constants::syntax_option_type optimize = regex_constants::optimize;
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static constexpr regex_constants::syntax_option_type collate = regex_constants::collate;
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static constexpr regex_constants::syntax_option_type ECMAScript = regex_constants::ECMAScript;
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static constexpr regex_constants::syntax_option_type basic = regex_constants::basic;
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static constexpr regex_constants::syntax_option_type extended = regex_constants::extended;
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static constexpr regex_constants::syntax_option_type awk = regex_constants::awk;
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static constexpr regex_constants::syntax_option_type grep = regex_constants::grep;
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static constexpr regex_constants::syntax_option_type egrep = regex_constants::egrep;
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// construct/copy/destroy:
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basic_regex();
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explicit basic_regex(const charT* p, flag_type f = regex_constants::ECMAScript);
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basic_regex(const charT* p, size_t len, flag_type f);
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basic_regex(const basic_regex&);
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basic_regex(basic_regex&&);
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template <class ST, class SA>
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explicit basic_regex(const basic_string<charT, ST, SA>& p,
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flag_type f = regex_constants::ECMAScript);
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template <class ForwardIterator>
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basic_regex(ForwardIterator first, ForwardIterator last,
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flag_type f = regex_constants::ECMAScript);
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basic_regex(initializer_list<charT>, flag_type = regex_constants::ECMAScript);
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~basic_regex();
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basic_regex& operator=(const basic_regex&);
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basic_regex& operator=(basic_regex&&);
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basic_regex& operator=(const charT* ptr);
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basic_regex& operator=(initializer_list<charT> il);
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template <class ST, class SA>
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basic_regex& operator=(const basic_string<charT, ST, SA>& p);
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// assign:
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basic_regex& assign(const basic_regex& that);
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basic_regex& assign(basic_regex&& that);
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basic_regex& assign(const charT* ptr, flag_type f = regex_constants::ECMAScript);
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basic_regex& assign(const charT* p, size_t len, flag_type f);
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template <class string_traits, class A>
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basic_regex& assign(const basic_string<charT, string_traits, A>& s,
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flag_type f = regex_constants::ECMAScript);
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template <class InputIterator>
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basic_regex& assign(InputIterator first, InputIterator last,
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flag_type f = regex_constants::ECMAScript);
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basic_regex& assign(initializer_list<charT>, flag_type = regex_constants::ECMAScript);
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// const operations:
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unsigned mark_count() const;
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flag_type flags() const;
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// locale:
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locale_type imbue(locale_type loc);
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locale_type getloc() const;
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// swap:
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void swap(basic_regex&);
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};
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typedef basic_regex<char> regex;
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typedef basic_regex<wchar_t> wregex;
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template <class charT, class traits>
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void swap(basic_regex<charT, traits>& e1, basic_regex<charT, traits>& e2);
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template <class BidirectionalIterator>
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class sub_match
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: public pair<BidirectionalIterator, BidirectionalIterator>
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{
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public:
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typedef typename iterator_traits<BidirectionalIterator>::value_type value_type;
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typedef typename iterator_traits<BidirectionalIterator>::difference_type difference_type;
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typedef BidirectionalIterator iterator;
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typedef basic_string<value_type> string_type;
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bool matched;
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difference_type length() const;
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operator string_type() const;
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string_type str() const;
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int compare(const sub_match& s) const;
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int compare(const string_type& s) const;
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int compare(const value_type* s) const;
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};
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typedef sub_match<const char*> csub_match;
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typedef sub_match<const wchar_t*> wcsub_match;
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typedef sub_match<string::const_iterator> ssub_match;
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typedef sub_match<wstring::const_iterator> wssub_match;
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template <class BiIter>
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bool
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operator==(const sub_match<BiIter>& lhs, const sub_match<BiIter>& rhs);
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template <class BiIter>
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bool
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operator!=(const sub_match<BiIter>& lhs, const sub_match<BiIter>& rhs);
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template <class BiIter>
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bool
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operator<(const sub_match<BiIter>& lhs, const sub_match<BiIter>& rhs);
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template <class BiIter>
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bool
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operator<=(const sub_match<BiIter>& lhs, const sub_match<BiIter>& rhs);
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template <class BiIter>
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bool
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operator>=(const sub_match<BiIter>& lhs, const sub_match<BiIter>& rhs);
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template <class BiIter>
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bool
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operator>(const sub_match<BiIter>& lhs, const sub_match<BiIter>& rhs);
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template <class BiIter, class ST, class SA>
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bool
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operator==(const basic_string<typename iterator_traits<BiIter>::value_type, ST, SA>& lhs,
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const sub_match<BiIter>& rhs);
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template <class BiIter, class ST, class SA>
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bool
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operator!=(const basic_string<typename iterator_traits<BiIter>::value_type, ST, SA>& lhs,
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const sub_match<BiIter>& rhs);
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template <class BiIter, class ST, class SA>
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bool
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operator<(const basic_string<typename iterator_traits<BiIter>::value_type, ST, SA>& lhs,
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const sub_match<BiIter>& rhs);
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template <class BiIter, class ST, class SA>
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bool
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operator>(const basic_string<typename iterator_traits<BiIter>::value_type, ST, SA>& lhs,
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const sub_match<BiIter>& rhs);
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template <class BiIter, class ST, class SA>
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bool operator>=(const basic_string<typename iterator_traits<BiIter>::value_type, ST, SA>& lhs,
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const sub_match<BiIter>& rhs);
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template <class BiIter, class ST, class SA>
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bool
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operator<=(const basic_string<typename iterator_traits<BiIter>::value_type, ST, SA>& lhs,
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const sub_match<BiIter>& rhs);
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template <class BiIter, class ST, class SA>
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bool
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operator==(const sub_match<BiIter>& lhs,
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const basic_string<typename iterator_traits<BiIter>::value_type, ST, SA>& rhs);
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template <class BiIter, class ST, class SA>
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bool
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operator!=(const sub_match<BiIter>& lhs,
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const basic_string<typename iterator_traits<BiIter>::value_type, ST, SA>& rhs);
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template <class BiIter, class ST, class SA>
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bool
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operator<(const sub_match<BiIter>& lhs,
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const basic_string<typename iterator_traits<BiIter>::value_type, ST, SA>& rhs);
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template <class BiIter, class ST, class SA>
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bool operator>(const sub_match<BiIter>& lhs,
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const basic_string<typename iterator_traits<BiIter>::value_type, ST, SA>& rhs);
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template <class BiIter, class ST, class SA>
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bool
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operator>=(const sub_match<BiIter>& lhs,
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const basic_string<typename iterator_traits<BiIter>::value_type, ST, SA>& rhs);
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template <class BiIter, class ST, class SA>
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bool
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operator<=(const sub_match<BiIter>& lhs,
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const basic_string<typename iterator_traits<BiIter>::value_type, ST, SA>& rhs);
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template <class BiIter>
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bool
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operator==(typename iterator_traits<BiIter>::value_type const* lhs,
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const sub_match<BiIter>& rhs);
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template <class BiIter>
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bool
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operator!=(typename iterator_traits<BiIter>::value_type const* lhs,
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const sub_match<BiIter>& rhs);
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template <class BiIter>
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bool
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operator<(typename iterator_traits<BiIter>::value_type const* lhs,
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const sub_match<BiIter>& rhs);
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template <class BiIter>
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bool
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operator>(typename iterator_traits<BiIter>::value_type const* lhs,
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const sub_match<BiIter>& rhs);
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template <class BiIter>
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bool
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operator>=(typename iterator_traits<BiIter>::value_type const* lhs,
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const sub_match<BiIter>& rhs);
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template <class BiIter>
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bool
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operator<=(typename iterator_traits<BiIter>::value_type const* lhs,
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const sub_match<BiIter>& rhs);
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template <class BiIter>
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bool
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operator==(const sub_match<BiIter>& lhs,
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typename iterator_traits<BiIter>::value_type const* rhs);
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template <class BiIter>
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bool
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operator!=(const sub_match<BiIter>& lhs,
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typename iterator_traits<BiIter>::value_type const* rhs);
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template <class BiIter>
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bool
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operator<(const sub_match<BiIter>& lhs,
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typename iterator_traits<BiIter>::value_type const* rhs);
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template <class BiIter>
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bool
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operator>(const sub_match<BiIter>& lhs,
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typename iterator_traits<BiIter>::value_type const* rhs);
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template <class BiIter>
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bool
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operator>=(const sub_match<BiIter>& lhs,
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typename iterator_traits<BiIter>::value_type const* rhs);
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template <class BiIter>
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bool
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operator<=(const sub_match<BiIter>& lhs,
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typename iterator_traits<BiIter>::value_type const* rhs);
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template <class BiIter>
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bool
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operator==(typename iterator_traits<BiIter>::value_type const& lhs,
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const sub_match<BiIter>& rhs);
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template <class BiIter>
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bool
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operator!=(typename iterator_traits<BiIter>::value_type const& lhs,
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const sub_match<BiIter>& rhs);
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template <class BiIter>
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bool
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operator<(typename iterator_traits<BiIter>::value_type const& lhs,
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const sub_match<BiIter>& rhs);
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template <class BiIter>
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bool
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operator>(typename iterator_traits<BiIter>::value_type const& lhs,
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const sub_match<BiIter>& rhs);
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template <class BiIter>
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bool
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operator>=(typename iterator_traits<BiIter>::value_type const& lhs,
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const sub_match<BiIter>& rhs);
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template <class BiIter>
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bool
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operator<=(typename iterator_traits<BiIter>::value_type const& lhs,
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const sub_match<BiIter>& rhs);
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template <class BiIter>
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bool
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operator==(const sub_match<BiIter>& lhs,
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typename iterator_traits<BiIter>::value_type const& rhs);
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template <class BiIter>
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bool
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operator!=(const sub_match<BiIter>& lhs,
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typename iterator_traits<BiIter>::value_type const& rhs);
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template <class BiIter>
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bool
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operator<(const sub_match<BiIter>& lhs,
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typename iterator_traits<BiIter>::value_type const& rhs);
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template <class BiIter>
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bool
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operator>(const sub_match<BiIter>& lhs,
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typename iterator_traits<BiIter>::value_type const& rhs);
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template <class BiIter>
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bool
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operator>=(const sub_match<BiIter>& lhs,
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typename iterator_traits<BiIter>::value_type const& rhs);
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template <class BiIter>
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bool
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operator<=(const sub_match<BiIter>& lhs,
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typename iterator_traits<BiIter>::value_type const& rhs);
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template <class charT, class ST, class BiIter>
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basic_ostream<charT, ST>&
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operator<<(basic_ostream<charT, ST>& os, const sub_match<BiIter>& m);
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template <class BidirectionalIterator,
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class Allocator = allocator<sub_match<BidirectionalIterator>>>
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class match_results
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{
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public:
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typedef sub_match<BidirectionalIterator> value_type;
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typedef const value_type& const_reference;
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typedef const_reference reference;
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typedef /implementation-defined/ const_iterator;
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typedef const_iterator iterator;
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typedef typename iterator_traits<BidirectionalIterator>::difference_type difference_type;
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typedef typename allocator_traits<Allocator>::size_type size_type;
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typedef Allocator allocator_type;
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typedef typename iterator_traits<BidirectionalIterator>::value_type char_type;
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typedef basic_string<char_type> string_type;
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// construct/copy/destroy:
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explicit match_results(const Allocator& a = Allocator());
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match_results(const match_results& m);
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match_results(match_results&& m);
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match_results& operator=(const match_results& m);
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match_results& operator=(match_results&& m);
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~match_results();
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// size:
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size_type size() const;
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size_type max_size() const;
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bool empty() const;
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// element access:
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difference_type length(size_type sub = 0) const;
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difference_type position(size_type sub = 0) const;
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string_type str(size_type sub = 0) const;
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const_reference operator[](size_type n) const;
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const_reference prefix() const;
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const_reference suffix() const;
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const_iterator begin() const;
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const_iterator end() const;
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const_iterator cbegin() const;
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const_iterator cend() const;
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// format:
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template <class OutputIter>
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OutputIter
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format(OutputIter out, const char_type* fmt_first,
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const char_type* fmt_last,
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regex_constants::match_flag_type flags = regex_constants::format_default) const;
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template <class OutputIter, class ST, class SA>
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OutputIter
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format(OutputIter out, const basic_string<char_type, ST, SA>& fmt,
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regex_constants::match_flag_type flags = regex_constants::format_default) const;
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template <class ST, class SA>
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basic_string<char_type, ST, SA>
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format(const basic_string<char_type, ST, SA>& fmt,
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regex_constants::match_flag_type flags = regex_constants::format_default) const;
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string_type
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format(const char_type* fmt,
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regex_constants::match_flag_type flags = regex_constants::format_default) const;
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// allocator:
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allocator_type get_allocator() const;
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// swap:
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void swap(match_results& that);
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};
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typedef match_results<const char*> cmatch;
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typedef match_results<const wchar_t*> wcmatch;
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typedef match_results<string::const_iterator> smatch;
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typedef match_results<wstring::const_iterator> wsmatch;
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template <class BidirectionalIterator, class Allocator>
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bool
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operator==(const match_results<BidirectionalIterator, Allocator>& m1,
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const match_results<BidirectionalIterator, Allocator>& m2);
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template <class BidirectionalIterator, class Allocator>
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bool
|
|
operator!=(const match_results<BidirectionalIterator, Allocator>& m1,
|
|
const match_results<BidirectionalIterator, Allocator>& m2);
|
|
|
|
template <class BidirectionalIterator, class Allocator>
|
|
void
|
|
swap(match_results<BidirectionalIterator, Allocator>& m1,
|
|
match_results<BidirectionalIterator, Allocator>& m2);
|
|
|
|
template <class BidirectionalIterator, class Allocator, class charT, class traits>
|
|
bool
|
|
regex_match(BidirectionalIterator first, BidirectionalIterator last,
|
|
match_results<BidirectionalIterator, Allocator>& m,
|
|
const basic_regex<charT, traits>& e,
|
|
regex_constants::match_flag_type flags = regex_constants::match_default);
|
|
|
|
template <class BidirectionalIterator, class charT, class traits>
|
|
bool
|
|
regex_match(BidirectionalIterator first, BidirectionalIterator last,
|
|
const basic_regex<charT, traits>& e,
|
|
regex_constants::match_flag_type flags = regex_constants::match_default);
|
|
|
|
template <class charT, class Allocator, class traits>
|
|
bool
|
|
regex_match(const charT* str, match_results<const charT*, Allocator>& m,
|
|
const basic_regex<charT, traits>& e,
|
|
regex_constants::match_flag_type flags = regex_constants::match_default);
|
|
|
|
template <class ST, class SA, class Allocator, class charT, class traits>
|
|
bool
|
|
regex_match(const basic_string<charT, ST, SA>& s,
|
|
match_results<typename basic_string<charT, ST, SA>::const_iterator, Allocator>& m,
|
|
const basic_regex<charT, traits>& e,
|
|
regex_constants::match_flag_type flags = regex_constants::match_default);
|
|
|
|
template <class charT, class traits>
|
|
bool
|
|
regex_match(const charT* str, const basic_regex<charT, traits>& e,
|
|
regex_constants::match_flag_type flags = regex_constants::match_default);
|
|
|
|
template <class ST, class SA, class charT, class traits>
|
|
bool
|
|
regex_match(const basic_string<charT, ST, SA>& s,
|
|
const basic_regex<charT, traits>& e,
|
|
regex_constants::match_flag_type flags = regex_constants::match_default);
|
|
|
|
template <class BidirectionalIterator, class Allocator, class charT, class traits>
|
|
bool
|
|
regex_search(BidirectionalIterator first, BidirectionalIterator last,
|
|
match_results<BidirectionalIterator, Allocator>& m,
|
|
const basic_regex<charT, traits>& e,
|
|
regex_constants::match_flag_type flags = regex_constants::match_default);
|
|
|
|
template <class BidirectionalIterator, class charT, class traits>
|
|
bool
|
|
regex_search(BidirectionalIterator first, BidirectionalIterator last,
|
|
const basic_regex<charT, traits>& e,
|
|
regex_constants::match_flag_type flags = regex_constants::match_default);
|
|
|
|
template <class charT, class Allocator, class traits>
|
|
bool
|
|
regex_search(const charT* str, match_results<const charT*, Allocator>& m,
|
|
const basic_regex<charT, traits>& e,
|
|
regex_constants::match_flag_type flags = regex_constants::match_default);
|
|
|
|
template <class charT, class traits>
|
|
bool
|
|
regex_search(const charT* str, const basic_regex<charT, traits>& e,
|
|
regex_constants::match_flag_type flags = regex_constants::match_default);
|
|
|
|
template <class ST, class SA, class charT, class traits>
|
|
bool
|
|
regex_search(const basic_string<charT, ST, SA>& s,
|
|
const basic_regex<charT, traits>& e,
|
|
regex_constants::match_flag_type flags = regex_constants::match_default);
|
|
|
|
template <class ST, class SA, class Allocator, class charT, class traits>
|
|
bool
|
|
regex_search(const basic_string<charT, ST, SA>& s,
|
|
match_results<typename basic_string<charT, ST, SA>::const_iterator, Allocator>& m,
|
|
const basic_regex<charT, traits>& e,
|
|
regex_constants::match_flag_type flags = regex_constants::match_default);
|
|
|
|
template <class OutputIterator, class BidirectionalIterator,
|
|
class traits, class charT, class ST, class SA>
|
|
OutputIterator
|
|
regex_replace(OutputIterator out,
|
|
BidirectionalIterator first, BidirectionalIterator last,
|
|
const basic_regex<charT, traits>& e,
|
|
const basic_string<charT, ST, SA>& fmt,
|
|
regex_constants::match_flag_type flags = regex_constants::match_default);
|
|
|
|
template <class OutputIterator, class BidirectionalIterator,
|
|
class traits, class charT>
|
|
OutputIterator
|
|
regex_replace(OutputIterator out,
|
|
BidirectionalIterator first, BidirectionalIterator last,
|
|
const basic_regex<charT, traits>& e, const charT* fmt,
|
|
regex_constants::match_flag_type flags = regex_constants::match_default);
|
|
|
|
template <class traits, class charT, class ST, class SA, class FST, class FSA>>
|
|
basic_string<charT, ST, SA>
|
|
regex_replace(const basic_string<charT, ST, SA>& s,
|
|
const basic_regex<charT, traits>& e,
|
|
const basic_string<charT, FST, FSA>& fmt,
|
|
regex_constants::match_flag_type flags = regex_constants::match_default);
|
|
|
|
template <class traits, class charT, class ST, class SA>
|
|
basic_string<charT, ST, SA>
|
|
regex_replace(const basic_string<charT, ST, SA>& s,
|
|
const basic_regex<charT, traits>& e, const charT* fmt,
|
|
regex_constants::match_flag_type flags = regex_constants::match_default);
|
|
|
|
template <class traits, class charT, class ST, class SA>
|
|
basic_string<charT>
|
|
regex_replace(const charT* s,
|
|
const basic_regex<charT, traits>& e,
|
|
const basic_string<charT, ST, SA>& fmt,
|
|
regex_constants::match_flag_type flags = regex_constants::match_default);
|
|
|
|
template <class traits, class charT>
|
|
basic_string<charT>
|
|
regex_replace(const charT* s,
|
|
const basic_regex<charT, traits>& e,
|
|
const charT* fmt,
|
|
regex_constants::match_flag_type flags = regex_constants::match_default);
|
|
|
|
template <class BidirectionalIterator,
|
|
class charT = typename iterator_traits< BidirectionalIterator>::value_type,
|
|
class traits = regex_traits<charT>>
|
|
class regex_iterator
|
|
{
|
|
public:
|
|
typedef basic_regex<charT, traits> regex_type;
|
|
typedef match_results<BidirectionalIterator> value_type;
|
|
typedef ptrdiff_t difference_type;
|
|
typedef const value_type* pointer;
|
|
typedef const value_type& reference;
|
|
typedef forward_iterator_tag iterator_category;
|
|
|
|
regex_iterator();
|
|
regex_iterator(BidirectionalIterator a, BidirectionalIterator b,
|
|
const regex_type& re,
|
|
regex_constants::match_flag_type m = regex_constants::match_default);
|
|
regex_iterator(const regex_iterator&);
|
|
regex_iterator& operator=(const regex_iterator&);
|
|
|
|
bool operator==(const regex_iterator&) const;
|
|
bool operator!=(const regex_iterator&) const;
|
|
|
|
const value_type& operator*() const;
|
|
const value_type* operator->() const;
|
|
|
|
regex_iterator& operator++();
|
|
regex_iterator operator++(int);
|
|
};
|
|
|
|
typedef regex_iterator<const char*> cregex_iterator;
|
|
typedef regex_iterator<const wchar_t*> wcregex_iterator;
|
|
typedef regex_iterator<string::const_iterator> sregex_iterator;
|
|
typedef regex_iterator<wstring::const_iterator> wsregex_iterator;
|
|
|
|
template <class BidirectionalIterator,
|
|
class charT = typename iterator_traits< BidirectionalIterator>::value_type,
|
|
class traits = regex_traits<charT>>
|
|
class regex_token_iterator
|
|
{
|
|
public:
|
|
typedef basic_regex<charT, traits> regex_type;
|
|
typedef sub_match<BidirectionalIterator> value_type;
|
|
typedef ptrdiff_t difference_type;
|
|
typedef const value_type* pointer;
|
|
typedef const value_type& reference;
|
|
typedef forward_iterator_tag iterator_category;
|
|
|
|
regex_token_iterator();
|
|
regex_token_iterator(BidirectionalIterator a, BidirectionalIterator b,
|
|
const regex_type& re, int submatch = 0,
|
|
regex_constants::match_flag_type m = regex_constants::match_default);
|
|
regex_token_iterator(BidirectionalIterator a, BidirectionalIterator b,
|
|
const regex_type& re, const vector<int>& submatches,
|
|
regex_constants::match_flag_type m = regex_constants::match_default);
|
|
regex_token_iterator(BidirectionalIterator a, BidirectionalIterator b,
|
|
const regex_type& re, initializer_list<int> submatches,
|
|
regex_constants::match_flag_type m = regex_constants::match_default);
|
|
template <size_t N>
|
|
regex_token_iterator(BidirectionalIterator a, BidirectionalIterator b,
|
|
const regex_type& re, const int (&submatches)[N],
|
|
regex_constants::match_flag_type m = regex_constants::match_default);
|
|
regex_token_iterator(const regex_token_iterator&);
|
|
regex_token_iterator& operator=(const regex_token_iterator&);
|
|
|
|
bool operator==(const regex_token_iterator&) const;
|
|
bool operator!=(const regex_token_iterator&) const;
|
|
|
|
const value_type& operator*() const;
|
|
const value_type* operator->() const;
|
|
|
|
regex_token_iterator& operator++();
|
|
regex_token_iterator operator++(int);
|
|
};
|
|
|
|
typedef regex_token_iterator<const char*> cregex_token_iterator;
|
|
typedef regex_token_iterator<const wchar_t*> wcregex_token_iterator;
|
|
typedef regex_token_iterator<string::const_iterator> sregex_token_iterator;
|
|
typedef regex_token_iterator<wstring::const_iterator> wsregex_token_iterator;
|
|
|
|
} // std
|
|
*/
|
|
|
|
#include <__config>
|
|
#include <stdexcept>
|
|
#include <__locale>
|
|
#include <initializer_list>
|
|
|
|
#pragma GCC system_header
|
|
|
|
_LIBCPP_BEGIN_NAMESPACE_STD
|
|
|
|
namespace regex_constants
|
|
{
|
|
|
|
// syntax_option_type
|
|
|
|
enum syntax_option_type
|
|
{
|
|
icase = 1 << 0,
|
|
nosubs = 1 << 1,
|
|
optimize = 1 << 2,
|
|
collate = 1 << 3,
|
|
ECMAScript = 1 << 4,
|
|
basic = 1 << 5,
|
|
extended = 1 << 6,
|
|
awk = 1 << 7,
|
|
grep = 1 << 8,
|
|
egrep = 1 << 9
|
|
};
|
|
|
|
inline
|
|
/*constexpr*/
|
|
syntax_option_type
|
|
operator~(syntax_option_type __x)
|
|
{
|
|
return syntax_option_type(~int(__x));
|
|
}
|
|
|
|
inline
|
|
/*constexpr*/
|
|
syntax_option_type
|
|
operator&(syntax_option_type __x, syntax_option_type __y)
|
|
{
|
|
return syntax_option_type(int(__x) & int(__y));
|
|
}
|
|
|
|
inline
|
|
/*constexpr*/
|
|
syntax_option_type
|
|
operator|(syntax_option_type __x, syntax_option_type __y)
|
|
{
|
|
return syntax_option_type(int(__x) | int(__y));
|
|
}
|
|
|
|
inline
|
|
/*constexpr*/
|
|
syntax_option_type
|
|
operator^(syntax_option_type __x, syntax_option_type __y)
|
|
{
|
|
return syntax_option_type(int(__x) ^ int(__y));
|
|
}
|
|
|
|
inline
|
|
/*constexpr*/
|
|
syntax_option_type&
|
|
operator&=(syntax_option_type& __x, syntax_option_type __y)
|
|
{
|
|
__x = __x & __y;
|
|
return __x;
|
|
}
|
|
|
|
inline
|
|
/*constexpr*/
|
|
syntax_option_type&
|
|
operator|=(syntax_option_type& __x, syntax_option_type __y)
|
|
{
|
|
__x = __x | __y;
|
|
return __x;
|
|
}
|
|
|
|
inline
|
|
/*constexpr*/
|
|
syntax_option_type&
|
|
operator^=(syntax_option_type& __x, syntax_option_type __y)
|
|
{
|
|
__x = __x ^ __y;
|
|
return __x;
|
|
}
|
|
|
|
// match_flag_type
|
|
|
|
enum match_flag_type
|
|
{
|
|
match_default = 0,
|
|
match_not_bol = 1 << 0,
|
|
match_not_eol = 1 << 1,
|
|
match_not_bow = 1 << 2,
|
|
match_not_eow = 1 << 3,
|
|
match_any = 1 << 4,
|
|
match_not_null = 1 << 5,
|
|
match_continuous = 1 << 6,
|
|
match_prev_avail = 1 << 7,
|
|
format_default = 0,
|
|
format_sed = 1 << 8,
|
|
format_no_copy = 1 << 9,
|
|
format_first_only = 1 << 10
|
|
};
|
|
|
|
inline
|
|
/*constexpr*/
|
|
match_flag_type
|
|
operator~(match_flag_type __x)
|
|
{
|
|
return match_flag_type(~int(__x));
|
|
}
|
|
|
|
inline
|
|
/*constexpr*/
|
|
match_flag_type
|
|
operator&(match_flag_type __x, match_flag_type __y)
|
|
{
|
|
return match_flag_type(int(__x) & int(__y));
|
|
}
|
|
|
|
inline
|
|
/*constexpr*/
|
|
match_flag_type
|
|
operator|(match_flag_type __x, match_flag_type __y)
|
|
{
|
|
return match_flag_type(int(__x) | int(__y));
|
|
}
|
|
|
|
inline
|
|
/*constexpr*/
|
|
match_flag_type
|
|
operator^(match_flag_type __x, match_flag_type __y)
|
|
{
|
|
return match_flag_type(int(__x) ^ int(__y));
|
|
}
|
|
|
|
inline
|
|
/*constexpr*/
|
|
match_flag_type&
|
|
operator&=(match_flag_type& __x, match_flag_type __y)
|
|
{
|
|
__x = __x & __y;
|
|
return __x;
|
|
}
|
|
|
|
inline
|
|
/*constexpr*/
|
|
match_flag_type&
|
|
operator|=(match_flag_type& __x, match_flag_type __y)
|
|
{
|
|
__x = __x | __y;
|
|
return __x;
|
|
}
|
|
|
|
inline
|
|
/*constexpr*/
|
|
match_flag_type&
|
|
operator^=(match_flag_type& __x, match_flag_type __y)
|
|
{
|
|
__x = __x ^ __y;
|
|
return __x;
|
|
}
|
|
|
|
enum error_type
|
|
{
|
|
error_collate = 1,
|
|
error_ctype,
|
|
error_escape,
|
|
error_backref,
|
|
error_brack,
|
|
error_paren,
|
|
error_brace,
|
|
error_badbrace,
|
|
error_range,
|
|
error_space,
|
|
error_badrepeat,
|
|
error_complexity,
|
|
error_stack,
|
|
error_temp
|
|
};
|
|
|
|
} // regex_constants
|
|
|
|
class _LIBCPP_EXCEPTION_ABI regex_error
|
|
: public runtime_error
|
|
{
|
|
regex_constants::error_type __code_;
|
|
public:
|
|
explicit regex_error(regex_constants::error_type __ecode);
|
|
virtual ~regex_error() throw();
|
|
regex_constants::error_type code() const {return __code_;}
|
|
};
|
|
|
|
template <class _CharT>
|
|
struct regex_traits
|
|
{
|
|
public:
|
|
typedef _CharT char_type;
|
|
typedef basic_string<char_type> string_type;
|
|
typedef locale locale_type;
|
|
typedef ctype_base::mask char_class_type;
|
|
|
|
static const char_class_type __regex_word = 0x80;
|
|
private:
|
|
locale __loc_;
|
|
const ctype<char_type>* __ct_;
|
|
const collate<char_type>* __col_;
|
|
|
|
public:
|
|
regex_traits();
|
|
|
|
static size_t length(const char_type* __p)
|
|
{return char_traits<char_type>::length(__p);}
|
|
char_type translate(char_type __c) const {return __c;}
|
|
char_type translate_nocase(char_type __c) const;
|
|
template <class _ForwardIterator>
|
|
string_type
|
|
transform(_ForwardIterator __f, _ForwardIterator __l) const;
|
|
template <class _ForwardIterator>
|
|
string_type
|
|
transform_primary( _ForwardIterator __f, _ForwardIterator __l) const
|
|
{return __transform_primary(__f, __l, char_type());}
|
|
template <class _ForwardIterator>
|
|
string_type
|
|
lookup_collatename(_ForwardIterator __f, _ForwardIterator __l) const
|
|
{return __lookup_collatename(__f, __l, char_type());}
|
|
template <class _ForwardIterator>
|
|
char_class_type
|
|
lookup_classname(_ForwardIterator __f, _ForwardIterator __l,
|
|
bool __icase = false) const
|
|
{return __lookup_classname(__f, __l, __icase, char_type());}
|
|
bool isctype(char_type __c, char_class_type __m) const;
|
|
int value(char_type __ch, int __radix) const
|
|
{return __value(__ch, __radix);}
|
|
locale_type imbue(locale_type __l);
|
|
locale_type getloc()const {return __loc_;}
|
|
|
|
private:
|
|
void __init();
|
|
|
|
template <class _ForwardIterator>
|
|
string_type
|
|
__transform_primary(_ForwardIterator __f, _ForwardIterator __l, char) const;
|
|
template <class _ForwardIterator>
|
|
string_type
|
|
__transform_primary(_ForwardIterator __f, _ForwardIterator __l, wchar_t) const;
|
|
|
|
template <class _ForwardIterator>
|
|
string_type
|
|
__lookup_collatename(_ForwardIterator __f, _ForwardIterator __l, char) const;
|
|
template <class _ForwardIterator>
|
|
string_type
|
|
__lookup_collatename(_ForwardIterator __f, _ForwardIterator __l, wchar_t) const;
|
|
|
|
template <class _ForwardIterator>
|
|
char_class_type
|
|
__lookup_classname(_ForwardIterator __f, _ForwardIterator __l,
|
|
bool __icase, char) const;
|
|
template <class _ForwardIterator>
|
|
char_class_type
|
|
__lookup_classname(_ForwardIterator __f, _ForwardIterator __l,
|
|
bool __icase, wchar_t) const;
|
|
|
|
static int __value(unsigned char __ch, int __radix);
|
|
int __value(char __ch, int __radix) const
|
|
{return __value(static_cast<unsigned char>(__ch), __radix);}
|
|
int __value(wchar_t __ch, int __radix) const;
|
|
};
|
|
|
|
template <class _CharT>
|
|
regex_traits<_CharT>::regex_traits()
|
|
{
|
|
__init();
|
|
}
|
|
|
|
template <class _CharT>
|
|
typename regex_traits<_CharT>::char_type
|
|
regex_traits<_CharT>::translate_nocase(char_type __c) const
|
|
{
|
|
return __ct_->tolower(__c);
|
|
}
|
|
|
|
template <class _CharT>
|
|
template <class _ForwardIterator>
|
|
typename regex_traits<_CharT>::string_type
|
|
regex_traits<_CharT>::transform(_ForwardIterator __f, _ForwardIterator __l) const
|
|
{
|
|
string_type __s(__f, __l);
|
|
return __col_->transform(__s.data(), __s.data() + __s.size());
|
|
}
|
|
|
|
template <class _CharT>
|
|
void
|
|
regex_traits<_CharT>::__init()
|
|
{
|
|
__ct_ = &use_facet<ctype<char_type> >(__loc_);
|
|
__col_ = &use_facet<collate<char_type> >(__loc_);
|
|
}
|
|
|
|
template <class _CharT>
|
|
typename regex_traits<_CharT>::locale_type
|
|
regex_traits<_CharT>::imbue(locale_type __l)
|
|
{
|
|
locale __r = __loc_;
|
|
__loc_ = __l;
|
|
__init();
|
|
return __r;
|
|
}
|
|
|
|
// transform_primary is very FreeBSD-specific
|
|
|
|
template <class _CharT>
|
|
template <class _ForwardIterator>
|
|
typename regex_traits<_CharT>::string_type
|
|
regex_traits<_CharT>::__transform_primary(_ForwardIterator __f,
|
|
_ForwardIterator __l, char) const
|
|
{
|
|
const string_type __s(__f, __l);
|
|
string_type __d = __col_->transform(__s.data(), __s.data() + __s.size());
|
|
switch (__d.size())
|
|
{
|
|
case 1:
|
|
break;
|
|
case 12:
|
|
__d[11] = __d[3];
|
|
break;
|
|
default:
|
|
__d.clear();
|
|
break;
|
|
}
|
|
return __d;
|
|
}
|
|
|
|
template <class _CharT>
|
|
template <class _ForwardIterator>
|
|
typename regex_traits<_CharT>::string_type
|
|
regex_traits<_CharT>::__transform_primary(_ForwardIterator __f,
|
|
_ForwardIterator __l, wchar_t) const
|
|
{
|
|
const string_type __s(__f, __l);
|
|
string_type __d = __col_->transform(__s.data(), __s.data() + __s.size());
|
|
switch (__d.size())
|
|
{
|
|
case 1:
|
|
break;
|
|
case 3:
|
|
__d[2] = __d[0];
|
|
break;
|
|
default:
|
|
__d.clear();
|
|
break;
|
|
}
|
|
return __d;
|
|
}
|
|
|
|
// lookup_collatename is very FreeBSD-specific
|
|
|
|
string __get_collation_name(const char* __s);
|
|
|
|
template <class _CharT>
|
|
template <class _ForwardIterator>
|
|
typename regex_traits<_CharT>::string_type
|
|
regex_traits<_CharT>::__lookup_collatename(_ForwardIterator __f,
|
|
_ForwardIterator __l, char) const
|
|
{
|
|
string_type __s(__f, __l);
|
|
string_type __r;
|
|
if (!__s.empty())
|
|
{
|
|
__r = __get_collation_name(__s.c_str());
|
|
if (__r.empty() && __s.size() <= 2)
|
|
{
|
|
__r = __col_->transform(__s.data(), __s.data() + __s.size());
|
|
if (__r.size() == 1 || __r.size() == 12)
|
|
__r = __s;
|
|
else
|
|
__r.clear();
|
|
}
|
|
}
|
|
return __r;
|
|
}
|
|
|
|
template <class _CharT>
|
|
template <class _ForwardIterator>
|
|
typename regex_traits<_CharT>::string_type
|
|
regex_traits<_CharT>::__lookup_collatename(_ForwardIterator __f,
|
|
_ForwardIterator __l, wchar_t) const
|
|
{
|
|
string_type __s(__f, __l);
|
|
string __n;
|
|
__n.reserve(__s.size());
|
|
for (typename string_type::const_iterator __i = __s.begin(), __e = __s.end();
|
|
__i != __e; ++__i)
|
|
{
|
|
if (static_cast<unsigned>(*__i) >= 127)
|
|
return string_type();
|
|
__n.push_back(char(*__i));
|
|
}
|
|
string_type __r;
|
|
if (!__s.empty())
|
|
{
|
|
__n = __get_collation_name(__n.c_str());
|
|
if (!__n.empty())
|
|
__r.assign(__n.begin(), __n.end());
|
|
else if (__s.size() <= 2)
|
|
{
|
|
__r = __col_->transform(__s.data(), __s.data() + __s.size());
|
|
if (__r.size() == 1 || __r.size() == 3)
|
|
__r = __s;
|
|
else
|
|
__r.clear();
|
|
}
|
|
}
|
|
return __r;
|
|
}
|
|
|
|
// lookup_classname
|
|
|
|
ctype_base::mask __get_classname(const char* __s, bool __icase);
|
|
|
|
template <class _CharT>
|
|
template <class _ForwardIterator>
|
|
typename regex_traits<_CharT>::char_class_type
|
|
regex_traits<_CharT>::__lookup_classname(_ForwardIterator __f,
|
|
_ForwardIterator __l,
|
|
bool __icase, char) const
|
|
{
|
|
string_type __s(__f, __l);
|
|
__ct_->tolower(&__s[0], &__s[0] + __s.size());
|
|
return __get_classname(__s.c_str(), __icase);
|
|
}
|
|
|
|
template <class _CharT>
|
|
template <class _ForwardIterator>
|
|
typename regex_traits<_CharT>::char_class_type
|
|
regex_traits<_CharT>::__lookup_classname(_ForwardIterator __f,
|
|
_ForwardIterator __l,
|
|
bool __icase, wchar_t) const
|
|
{
|
|
string_type __s(__f, __l);
|
|
__ct_->tolower(&__s[0], &__s[0] + __s.size());
|
|
string __n;
|
|
__n.reserve(__s.size());
|
|
for (typename string_type::const_iterator __i = __s.begin(), __e = __s.end();
|
|
__i != __e; ++__i)
|
|
{
|
|
if (static_cast<unsigned>(*__i) >= 127)
|
|
return char_class_type();
|
|
__n.push_back(char(*__i));
|
|
}
|
|
return __get_classname(__n.c_str(), __icase);
|
|
}
|
|
|
|
template <class _CharT>
|
|
bool
|
|
regex_traits<_CharT>::isctype(char_type __c, char_class_type __m) const
|
|
{
|
|
if (__ct_->is(__m, __c))
|
|
return true;
|
|
return (__c == '_' && (__m & __regex_word));
|
|
}
|
|
|
|
template <class _CharT>
|
|
int
|
|
regex_traits<_CharT>::__value(unsigned char __ch, int __radix)
|
|
{
|
|
if ((__ch & 0xF8u) == 0x30) // '0' <= __ch && __ch <= '7'
|
|
return __ch - '0';
|
|
if (__radix != 8)
|
|
{
|
|
if ((__ch & 0xFEu) == 0x38) // '8' <= __ch && __ch <= '9'
|
|
return __ch - '0';
|
|
if (__radix == 16)
|
|
{
|
|
__ch |= 0x20; // tolower
|
|
if ('a' <= __ch && __ch <= 'f')
|
|
return __ch - ('a' - 10);
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
template <class _CharT>
|
|
inline
|
|
int
|
|
regex_traits<_CharT>::__value(wchar_t __ch, int __radix) const
|
|
{
|
|
return __value(static_cast<unsigned char>(__ct_->narrow(__ch, char_type())), __radix);
|
|
}
|
|
|
|
template <class _CharT, class _Traits = regex_traits<_CharT> >
|
|
class basic_regex
|
|
{
|
|
public:
|
|
// types:
|
|
typedef _CharT value_type;
|
|
typedef regex_constants::syntax_option_type flag_type;
|
|
typedef typename _Traits::locale_type locale_type;
|
|
|
|
private:
|
|
_Traits __traits_;
|
|
flag_type __flags_;
|
|
unsigned __marked_count_;
|
|
|
|
public:
|
|
// constants:
|
|
static const/*expr*/ regex_constants::syntax_option_type icase = regex_constants::icase;
|
|
static const/*expr*/ regex_constants::syntax_option_type nosubs = regex_constants::nosubs;
|
|
static const/*expr*/ regex_constants::syntax_option_type optimize = regex_constants::optimize;
|
|
static const/*expr*/ regex_constants::syntax_option_type collate = regex_constants::collate;
|
|
static const/*expr*/ regex_constants::syntax_option_type ECMAScript = regex_constants::ECMAScript;
|
|
static const/*expr*/ regex_constants::syntax_option_type basic = regex_constants::basic;
|
|
static const/*expr*/ regex_constants::syntax_option_type extended = regex_constants::extended;
|
|
static const/*expr*/ regex_constants::syntax_option_type awk = regex_constants::awk;
|
|
static const/*expr*/ regex_constants::syntax_option_type grep = regex_constants::grep;
|
|
static const/*expr*/ regex_constants::syntax_option_type egrep = regex_constants::egrep;
|
|
|
|
// construct/copy/destroy:
|
|
basic_regex();
|
|
explicit basic_regex(const value_type* __p, flag_type __f = regex_constants::ECMAScript)
|
|
: __flags_(__f), __marked_count_(0)
|
|
{__parse(__p, __p + __traits_.length(__p));}
|
|
basic_regex(const value_type* __p, size_t __len, flag_type __f)
|
|
: __flags_(__f), __marked_count_(0)
|
|
{__parse(__p, __p + __len);}
|
|
basic_regex(const basic_regex&);
|
|
#ifdef _LIBCPP_MOVE
|
|
basic_regex(basic_regex&&);
|
|
#endif
|
|
template <class _ST, class _SA>
|
|
explicit basic_regex(const basic_string<value_type, _ST, _SA>& __p,
|
|
flag_type __f = regex_constants::ECMAScript)
|
|
: __flags_(__f), __marked_count_(0)
|
|
{__parse(__p.begin(), __p.end());}
|
|
template <class _ForwardIterator>
|
|
basic_regex(_ForwardIterator __first, _ForwardIterator __last,
|
|
flag_type __f = regex_constants::ECMAScript)
|
|
: __flags_(__f), __marked_count_(0)
|
|
{__parse(__first, __last);}
|
|
basic_regex(initializer_list<value_type> __il,
|
|
flag_type __f = regex_constants::ECMAScript)
|
|
: __flags_(__f), __marked_count_(0)
|
|
{__parse(__il.begin(), __il.end());}
|
|
|
|
~basic_regex();
|
|
|
|
basic_regex& operator=(const basic_regex&);
|
|
#ifdef _LIBCPP_MOVE
|
|
basic_regex& operator=(basic_regex&&);
|
|
#endif
|
|
basic_regex& operator=(const value_type* __p);
|
|
basic_regex& operator=(initializer_list<value_type> __il);
|
|
template <class _ST, class _SA>
|
|
basic_regex& operator=(const basic_string<value_type, _ST, _SA>& __p);
|
|
|
|
// assign:
|
|
basic_regex& assign(const basic_regex& __that);
|
|
#ifdef _LIBCPP_MOVE
|
|
basic_regex& assign(basic_regex&& __that);
|
|
#endif
|
|
basic_regex& assign(const value_type* __p, flag_type __f = regex_constants::ECMAScript);
|
|
basic_regex& assign(const value_type* __p, size_t __len, flag_type __f);
|
|
template <class _ST, class _SA>
|
|
basic_regex& assign(const basic_string<value_type, _ST, _SA>& __s,
|
|
flag_type __f = regex_constants::ECMAScript);
|
|
template <class _InputIterator>
|
|
basic_regex& assign(_InputIterator __first, _InputIterator __last,
|
|
flag_type __f = regex_constants::ECMAScript);
|
|
basic_regex& assign(initializer_list<value_type> __il,
|
|
flag_type = regex_constants::ECMAScript);
|
|
|
|
// const operations:
|
|
unsigned mark_count() const {return __marked_count_;}
|
|
flag_type flags() const {return __flags_;}
|
|
|
|
// locale:
|
|
locale_type imbue(locale_type __loc) {return __traits_.imbue(__loc);}
|
|
locale_type getloc() const {return __traits_.getloc();}
|
|
|
|
// swap:
|
|
void swap(basic_regex&);
|
|
|
|
private:
|
|
template <class _ForwardIterator>
|
|
void __parse(_ForwardIterator __first, _ForwardIterator __last);
|
|
template <class _ForwardIterator>
|
|
_ForwardIterator
|
|
__parse_basic_reg_exp(_ForwardIterator __first, _ForwardIterator __last);
|
|
template <class _ForwardIterator>
|
|
_ForwardIterator
|
|
__parse_RE_expression(_ForwardIterator __first, _ForwardIterator __last);
|
|
template <class _ForwardIterator>
|
|
_ForwardIterator
|
|
__parse_simple_RE(_ForwardIterator __first, _ForwardIterator __last);
|
|
template <class _ForwardIterator>
|
|
_ForwardIterator
|
|
__parse_nondupl_RE(_ForwardIterator __first, _ForwardIterator __last);
|
|
template <class _ForwardIterator>
|
|
_ForwardIterator
|
|
__parse_one_char_or_coll_elem_RE(_ForwardIterator __first, _ForwardIterator __last);
|
|
template <class _ForwardIterator>
|
|
_ForwardIterator
|
|
__parse_Back_open_paren(_ForwardIterator __first, _ForwardIterator __last);
|
|
template <class _ForwardIterator>
|
|
_ForwardIterator
|
|
__parse_Back_close_paren(_ForwardIterator __first, _ForwardIterator __last);
|
|
template <class _ForwardIterator>
|
|
_ForwardIterator
|
|
__parse_Back_open_brace(_ForwardIterator __first, _ForwardIterator __last);
|
|
template <class _ForwardIterator>
|
|
_ForwardIterator
|
|
__parse_Back_close_brace(_ForwardIterator __first, _ForwardIterator __last);
|
|
template <class _ForwardIterator>
|
|
_ForwardIterator
|
|
__parse_BACKREF(_ForwardIterator __first, _ForwardIterator __last);
|
|
template <class _ForwardIterator>
|
|
_ForwardIterator
|
|
__parse_ORD_CHAR(_ForwardIterator __first, _ForwardIterator __last);
|
|
template <class _ForwardIterator>
|
|
_ForwardIterator
|
|
__parse_QUOTED_CHAR(_ForwardIterator __first, _ForwardIterator __last);
|
|
template <class _ForwardIterator>
|
|
_ForwardIterator
|
|
__parse_RE_dupl_symbol(_ForwardIterator __first, _ForwardIterator __last);
|
|
template <class _ForwardIterator>
|
|
_ForwardIterator
|
|
__parse_bracket_expression(_ForwardIterator __first, _ForwardIterator __last);
|
|
template <class _ForwardIterator>
|
|
_ForwardIterator
|
|
__parse_follow_list(_ForwardIterator __first, _ForwardIterator __last);
|
|
template <class _ForwardIterator>
|
|
_ForwardIterator
|
|
__parse_expression_term(_ForwardIterator __first, _ForwardIterator __last);
|
|
template <class _ForwardIterator>
|
|
_ForwardIterator
|
|
__parse_equivalence_class(_ForwardIterator __first, _ForwardIterator __last);
|
|
template <class _ForwardIterator>
|
|
_ForwardIterator
|
|
__parse_character_class(_ForwardIterator __first, _ForwardIterator __last);
|
|
template <class _ForwardIterator>
|
|
_ForwardIterator
|
|
__parse_collating_symbol(_ForwardIterator __first, _ForwardIterator __last);
|
|
template <class _ForwardIterator>
|
|
_ForwardIterator
|
|
__parse_DUP_COUNT(_ForwardIterator __first, _ForwardIterator __last, int& __c);
|
|
|
|
void __push_l_anchor() {}
|
|
void __push_r_anchor() {}
|
|
void __push_match_any() {}
|
|
void __push_greedy_inf_repeat(int __min) {}
|
|
void __push_exact_repeat(int __count) {}
|
|
void __push_repeat(int __min, int __max) {}
|
|
void __start_nonmatching_list() {}
|
|
void __start_matching_list() {}
|
|
void __end_nonmatching_list() {}
|
|
void __end_matching_list() {}
|
|
void __push_char(value_type __c) {}
|
|
void __push_char(const typename _Traits::string_type& __c) {}
|
|
void __push_range() {}
|
|
void __push_class_type(typename _Traits::char_class_type) {}
|
|
void __push_back_ref(int __i) {}
|
|
};
|
|
|
|
template <class _CharT, class _Traits>
|
|
inline
|
|
basic_regex<_CharT, _Traits>::basic_regex()
|
|
: __traits_(), __flags_(), __marked_count_(0)
|
|
{
|
|
}
|
|
|
|
template <class _CharT, class _Traits>
|
|
basic_regex<_CharT, _Traits>::~basic_regex()
|
|
{
|
|
}
|
|
|
|
template <class _CharT, class _Traits>
|
|
template <class _ForwardIterator>
|
|
void
|
|
basic_regex<_CharT, _Traits>::__parse(_ForwardIterator __first,
|
|
_ForwardIterator __last)
|
|
{
|
|
switch (__flags_ & 0x3F0)
|
|
{
|
|
case ECMAScript:
|
|
break;
|
|
case basic:
|
|
__parse_basic_reg_exp(__first, __last);
|
|
break;
|
|
case extended:
|
|
break;
|
|
case awk:
|
|
break;
|
|
case grep:
|
|
break;
|
|
case egrep:
|
|
break;
|
|
default:
|
|
throw regex_error(regex_constants::error_temp);
|
|
}
|
|
}
|
|
|
|
template <class _CharT, class _Traits>
|
|
template <class _ForwardIterator>
|
|
_ForwardIterator
|
|
basic_regex<_CharT, _Traits>::__parse_basic_reg_exp(_ForwardIterator __first,
|
|
_ForwardIterator __last)
|
|
{
|
|
if (__first != __last)
|
|
{
|
|
if (*__first == '^')
|
|
{
|
|
__push_l_anchor();
|
|
++__first;
|
|
}
|
|
if (__first != __last)
|
|
{
|
|
__first = __parse_RE_expression(__first, __last);
|
|
if (__first != __last)
|
|
{
|
|
_ForwardIterator __temp = next(__first);
|
|
if (__temp == __last && *__first == '$')
|
|
{
|
|
__push_r_anchor();
|
|
++__first;
|
|
}
|
|
}
|
|
}
|
|
if (__first != __last)
|
|
throw regex_error(regex_constants::error_temp);
|
|
}
|
|
return __first;
|
|
}
|
|
|
|
template <class _CharT, class _Traits>
|
|
template <class _ForwardIterator>
|
|
_ForwardIterator
|
|
basic_regex<_CharT, _Traits>::__parse_RE_expression(_ForwardIterator __first,
|
|
_ForwardIterator __last)
|
|
{
|
|
while (true)
|
|
{
|
|
_ForwardIterator __temp = __parse_simple_RE(__first, __last);
|
|
if (__temp == __first)
|
|
break;
|
|
__first = __temp;
|
|
}
|
|
return __first;
|
|
}
|
|
|
|
template <class _CharT, class _Traits>
|
|
template <class _ForwardIterator>
|
|
_ForwardIterator
|
|
basic_regex<_CharT, _Traits>::__parse_simple_RE(_ForwardIterator __first,
|
|
_ForwardIterator __last)
|
|
{
|
|
if (__first != __last)
|
|
{
|
|
_ForwardIterator __temp = __parse_nondupl_RE(__first, __last);
|
|
if (__temp != __first)
|
|
{
|
|
__first = __temp;
|
|
__first = __parse_RE_dupl_symbol(__first, __last);
|
|
}
|
|
}
|
|
return __first;
|
|
}
|
|
|
|
template <class _CharT, class _Traits>
|
|
template <class _ForwardIterator>
|
|
_ForwardIterator
|
|
basic_regex<_CharT, _Traits>::__parse_nondupl_RE(_ForwardIterator __first,
|
|
_ForwardIterator __last)
|
|
{
|
|
_ForwardIterator __temp = __first;
|
|
__first = __parse_one_char_or_coll_elem_RE(__first, __last);
|
|
if (__temp == __first)
|
|
{
|
|
__temp = __parse_Back_open_paren(__first, __last);
|
|
if (__temp != __first)
|
|
{
|
|
__first = __parse_RE_expression(__temp, __last);
|
|
__temp = __parse_Back_close_paren(__first, __last);
|
|
if (__temp == __first)
|
|
throw regex_error(regex_constants::error_paren);
|
|
__first = __temp;
|
|
++__marked_count_;
|
|
}
|
|
else
|
|
__first = __parse_BACKREF(__first, __last);
|
|
}
|
|
return __first;
|
|
}
|
|
|
|
template <class _CharT, class _Traits>
|
|
template <class _ForwardIterator>
|
|
_ForwardIterator
|
|
basic_regex<_CharT, _Traits>::__parse_one_char_or_coll_elem_RE(
|
|
_ForwardIterator __first,
|
|
_ForwardIterator __last)
|
|
{
|
|
_ForwardIterator __temp = __first;
|
|
__first = __parse_ORD_CHAR(__first, __last);
|
|
if (__temp == __first)
|
|
{
|
|
__first = __parse_QUOTED_CHAR(__first, __last);
|
|
if (__temp == __first)
|
|
{
|
|
if (__first != __last && *__first == '.')
|
|
{
|
|
__push_match_any();
|
|
++__first;
|
|
}
|
|
else
|
|
__first = __parse_bracket_expression(__first, __last);
|
|
}
|
|
}
|
|
return __first;
|
|
}
|
|
|
|
template <class _CharT, class _Traits>
|
|
template <class _ForwardIterator>
|
|
_ForwardIterator
|
|
basic_regex<_CharT, _Traits>::__parse_Back_open_paren(_ForwardIterator __first,
|
|
_ForwardIterator __last)
|
|
{
|
|
if (__first != __last)
|
|
{
|
|
_ForwardIterator __temp = next(__first);
|
|
if (__temp != __last)
|
|
{
|
|
if (*__first == '\\' && *__temp == '(')
|
|
__first = ++__temp;
|
|
}
|
|
}
|
|
return __first;
|
|
}
|
|
|
|
template <class _CharT, class _Traits>
|
|
template <class _ForwardIterator>
|
|
_ForwardIterator
|
|
basic_regex<_CharT, _Traits>::__parse_Back_close_paren(_ForwardIterator __first,
|
|
_ForwardIterator __last)
|
|
{
|
|
if (__first != __last)
|
|
{
|
|
_ForwardIterator __temp = next(__first);
|
|
if (__temp != __last)
|
|
{
|
|
if (*__first == '\\' && *__temp == ')')
|
|
__first = ++__temp;
|
|
}
|
|
}
|
|
return __first;
|
|
}
|
|
|
|
template <class _CharT, class _Traits>
|
|
template <class _ForwardIterator>
|
|
_ForwardIterator
|
|
basic_regex<_CharT, _Traits>::__parse_Back_open_brace(_ForwardIterator __first,
|
|
_ForwardIterator __last)
|
|
{
|
|
if (__first != __last)
|
|
{
|
|
_ForwardIterator __temp = next(__first);
|
|
if (__temp != __last)
|
|
{
|
|
if (*__first == '\\' && *__temp == '{')
|
|
__first = ++__temp;
|
|
}
|
|
}
|
|
return __first;
|
|
}
|
|
|
|
template <class _CharT, class _Traits>
|
|
template <class _ForwardIterator>
|
|
_ForwardIterator
|
|
basic_regex<_CharT, _Traits>::__parse_Back_close_brace(_ForwardIterator __first,
|
|
_ForwardIterator __last)
|
|
{
|
|
if (__first != __last)
|
|
{
|
|
_ForwardIterator __temp = next(__first);
|
|
if (__temp != __last)
|
|
{
|
|
if (*__first == '\\' && *__temp == '}')
|
|
__first = ++__temp;
|
|
}
|
|
}
|
|
return __first;
|
|
}
|
|
|
|
template <class _CharT, class _Traits>
|
|
template <class _ForwardIterator>
|
|
_ForwardIterator
|
|
basic_regex<_CharT, _Traits>::__parse_BACKREF(_ForwardIterator __first,
|
|
_ForwardIterator __last)
|
|
{
|
|
if (__first != __last)
|
|
{
|
|
_ForwardIterator __temp = next(__first);
|
|
if (__temp != __last)
|
|
{
|
|
if (*__first == '\\' && '1' <= *__temp && *__temp <= '9')
|
|
{
|
|
__push_back_ref(*__temp - '0');
|
|
__first = ++__temp;
|
|
}
|
|
}
|
|
}
|
|
return __first;
|
|
}
|
|
|
|
template <class _CharT, class _Traits>
|
|
template <class _ForwardIterator>
|
|
_ForwardIterator
|
|
basic_regex<_CharT, _Traits>::__parse_ORD_CHAR(_ForwardIterator __first,
|
|
_ForwardIterator __last)
|
|
{
|
|
if (__first != __last)
|
|
{
|
|
_ForwardIterator __temp = next(__first);
|
|
if (__temp == __last && *__first == '$')
|
|
return __first;
|
|
// Not called inside a bracket
|
|
if (*__first == '.' || *__first == '\\' || *__first == '[')
|
|
return __first;
|
|
__push_char(*__first);
|
|
++__first;
|
|
}
|
|
return __first;
|
|
}
|
|
|
|
template <class _CharT, class _Traits>
|
|
template <class _ForwardIterator>
|
|
_ForwardIterator
|
|
basic_regex<_CharT, _Traits>::__parse_QUOTED_CHAR(_ForwardIterator __first,
|
|
_ForwardIterator __last)
|
|
{
|
|
if (__first != __last)
|
|
{
|
|
_ForwardIterator __temp = next(__first);
|
|
if (__temp != __last)
|
|
{
|
|
if (*__first == '\\')
|
|
{
|
|
switch (*__temp)
|
|
{
|
|
case '^':
|
|
case '.':
|
|
case '*':
|
|
case '[':
|
|
case '$':
|
|
case '\\':
|
|
__push_char(*__temp);
|
|
__first = ++__temp;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return __first;
|
|
}
|
|
|
|
template <class _CharT, class _Traits>
|
|
template <class _ForwardIterator>
|
|
_ForwardIterator
|
|
basic_regex<_CharT, _Traits>::__parse_RE_dupl_symbol(_ForwardIterator __first,
|
|
_ForwardIterator __last)
|
|
{
|
|
if (__first != __last)
|
|
{
|
|
if (*__first == '*')
|
|
{
|
|
__push_greedy_inf_repeat(0);
|
|
++__first;
|
|
}
|
|
else
|
|
{
|
|
_ForwardIterator __temp = __parse_Back_open_brace(__first, __last);
|
|
if (__temp != __first)
|
|
{
|
|
int __min = 0;
|
|
__first = __temp;
|
|
__temp = __parse_DUP_COUNT(__first, __last, __min);
|
|
if (__temp == __first)
|
|
throw regex_error(regex_constants::error_badbrace);
|
|
__first = __temp;
|
|
if (__first == __last)
|
|
throw regex_error(regex_constants::error_brace);
|
|
if (*__first != ',')
|
|
{
|
|
__temp = __parse_Back_close_brace(__first, __last);
|
|
if (__temp == __first)
|
|
throw regex_error(regex_constants::error_brace);
|
|
__push_exact_repeat(__min);
|
|
__first = __temp;
|
|
}
|
|
else
|
|
{
|
|
++__first; // consume ','
|
|
int __max = -1;
|
|
__first = __parse_DUP_COUNT(__first, __last, __max);
|
|
__temp = __parse_Back_close_brace(__first, __last);
|
|
if (__temp == __first)
|
|
throw regex_error(regex_constants::error_brace);
|
|
if (__max == -1)
|
|
__push_greedy_inf_repeat(__min);
|
|
else
|
|
{
|
|
if (__max < __min)
|
|
throw regex_error(regex_constants::error_badbrace);
|
|
__push_repeat(__min, __max);
|
|
}
|
|
__first = __temp;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return __first;
|
|
}
|
|
|
|
template <class _CharT, class _Traits>
|
|
template <class _ForwardIterator>
|
|
_ForwardIterator
|
|
basic_regex<_CharT, _Traits>::__parse_bracket_expression(_ForwardIterator __first,
|
|
_ForwardIterator __last)
|
|
{
|
|
if (__first != __last && *__first == '[')
|
|
{
|
|
if (++__first == __last)
|
|
throw regex_error(regex_constants::error_brack);
|
|
bool __non_matching = false;
|
|
if (*__first == '^')
|
|
{
|
|
++__first;
|
|
__non_matching = true;
|
|
__start_nonmatching_list();
|
|
}
|
|
else
|
|
__start_matching_list();
|
|
if (__first == __last)
|
|
throw regex_error(regex_constants::error_brack);
|
|
if (*__first == ']')
|
|
{
|
|
__push_char(']');
|
|
++__first;
|
|
}
|
|
__first = __parse_follow_list(__first, __last);
|
|
if (__first == __last)
|
|
throw regex_error(regex_constants::error_brack);
|
|
if (*__first == '-')
|
|
{
|
|
__push_char('-');
|
|
++__first;
|
|
}
|
|
if (__first == __last || *__first != ']')
|
|
throw regex_error(regex_constants::error_brack);
|
|
if (__non_matching)
|
|
__end_nonmatching_list();
|
|
else
|
|
__end_matching_list();
|
|
++__first;
|
|
}
|
|
return __first;
|
|
}
|
|
|
|
template <class _CharT, class _Traits>
|
|
template <class _ForwardIterator>
|
|
_ForwardIterator
|
|
basic_regex<_CharT, _Traits>::__parse_follow_list(_ForwardIterator __first,
|
|
_ForwardIterator __last)
|
|
{
|
|
if (__first != __last)
|
|
{
|
|
while (true)
|
|
{
|
|
_ForwardIterator __temp = __parse_expression_term(__first, __last);
|
|
if (__temp == __first)
|
|
break;
|
|
__first = __temp;
|
|
}
|
|
}
|
|
return __first;
|
|
}
|
|
|
|
template <class _CharT, class _Traits>
|
|
template <class _ForwardIterator>
|
|
_ForwardIterator
|
|
basic_regex<_CharT, _Traits>::__parse_expression_term(_ForwardIterator __first,
|
|
_ForwardIterator __last)
|
|
{
|
|
if (__first != __last && *__first != ']')
|
|
{
|
|
bool __parsed_one = false;
|
|
_ForwardIterator __temp = next(__first);
|
|
if (__temp != __last && *__first == '[')
|
|
{
|
|
if (*__temp == '=')
|
|
return __parse_equivalence_class(++__temp, __last);
|
|
else if (*__temp == ':')
|
|
return __parse_character_class(++__temp, __last);
|
|
else if (*__temp == '.')
|
|
{
|
|
__first = __parse_collating_symbol(++__temp, __last);
|
|
__parsed_one = true;
|
|
}
|
|
}
|
|
if (!__parsed_one)
|
|
{
|
|
__push_char(*__first);
|
|
++__first;
|
|
}
|
|
if (__first != __last && *__first != ']')
|
|
{
|
|
__temp = next(__first);
|
|
if (__temp != __last && *__first == '-' && *__temp != ']')
|
|
{
|
|
// parse a range
|
|
__first = __temp;
|
|
++__temp;
|
|
if (__temp != __last && *__first == '[' && *__temp == '.')
|
|
__first = __parse_collating_symbol(++__temp, __last);
|
|
else
|
|
{
|
|
__push_char(*__first);
|
|
++__first;
|
|
}
|
|
__push_range();
|
|
}
|
|
}
|
|
}
|
|
return __first;
|
|
}
|
|
|
|
template <class _CharT, class _Traits>
|
|
template <class _ForwardIterator>
|
|
_ForwardIterator
|
|
basic_regex<_CharT, _Traits>::__parse_equivalence_class(_ForwardIterator __first,
|
|
_ForwardIterator __last)
|
|
{
|
|
// Found [=
|
|
// This means =] must exist
|
|
value_type _Equal_close[2] = {'=', ']'};
|
|
_ForwardIterator __temp = _STD::search(__first, __last, _Equal_close,
|
|
_Equal_close+2);
|
|
if (__temp == __last)
|
|
throw regex_error(regex_constants::error_brack);
|
|
// [__first, __temp) contains all text in [= ... =]
|
|
typedef typename _Traits::string_type string_type;
|
|
string_type __collate_name =
|
|
__traits_.lookup_collatename(__first, __temp);
|
|
if (__collate_name.empty())
|
|
throw regex_error(regex_constants::error_brack);
|
|
string_type __equiv_name =
|
|
__traits_.transform_primary(__collate_name.begin(),
|
|
__collate_name.end());
|
|
if (!__equiv_name.empty())
|
|
__push_char(__equiv_name);
|
|
else
|
|
__push_char(__collate_name);
|
|
__first = next(__temp, 2);
|
|
return __first;
|
|
}
|
|
|
|
template <class _CharT, class _Traits>
|
|
template <class _ForwardIterator>
|
|
_ForwardIterator
|
|
basic_regex<_CharT, _Traits>::__parse_character_class(_ForwardIterator __first,
|
|
_ForwardIterator __last)
|
|
{
|
|
// Found [:
|
|
// This means :] must exist
|
|
value_type _Colon_close[2] = {':', ']'};
|
|
_ForwardIterator __temp = _STD::search(__first, __last, _Colon_close,
|
|
_Colon_close+2);
|
|
if (__temp == __last)
|
|
throw regex_error(regex_constants::error_brack);
|
|
// [__first, __temp) contains all text in [: ... :]
|
|
typedef typename _Traits::char_class_type char_class_type;
|
|
char_class_type __class_type =
|
|
__traits_.lookup_classname(__first, __temp, __flags_ & icase);
|
|
if (__class_type == 0)
|
|
throw regex_error(regex_constants::error_brack);
|
|
__push_class_type(__class_type);
|
|
__first = next(__temp, 2);
|
|
return __first;
|
|
}
|
|
|
|
template <class _CharT, class _Traits>
|
|
template <class _ForwardIterator>
|
|
_ForwardIterator
|
|
basic_regex<_CharT, _Traits>::__parse_collating_symbol(_ForwardIterator __first,
|
|
_ForwardIterator __last)
|
|
{
|
|
// Found [.
|
|
// This means .] must exist
|
|
value_type _Dot_close[2] = {'.', ']'};
|
|
_ForwardIterator __temp = _STD::search(__first, __last, _Dot_close,
|
|
_Dot_close+2);
|
|
if (__temp == __last)
|
|
throw regex_error(regex_constants::error_brack);
|
|
// [__first, __temp) contains all text in [. ... .]
|
|
typedef typename _Traits::string_type string_type;
|
|
string_type __collate_name =
|
|
__traits_.lookup_collatename(__first, __temp);
|
|
if (__collate_name.empty())
|
|
throw regex_error(regex_constants::error_brack);
|
|
__push_char(__collate_name);
|
|
__first = next(__temp, 2);
|
|
return __first;
|
|
}
|
|
|
|
template <class _CharT, class _Traits>
|
|
template <class _ForwardIterator>
|
|
_ForwardIterator
|
|
basic_regex<_CharT, _Traits>::__parse_DUP_COUNT(_ForwardIterator __first,
|
|
_ForwardIterator __last,
|
|
int& __c)
|
|
{
|
|
if (__first != __last && '0' <= *__first && *__first <= '9')
|
|
{
|
|
__c = *__first - '0';
|
|
for (++__first; __first != __last && '0' <= *__first && *__first <= '9';
|
|
++__first)
|
|
{
|
|
__c *= 10;
|
|
__c += *__first - '0';
|
|
}
|
|
}
|
|
return __first;
|
|
}
|
|
|
|
typedef basic_regex<char> regex;
|
|
typedef basic_regex<wchar_t> wregex;
|
|
|
|
_LIBCPP_END_NAMESPACE_STD
|
|
|
|
#endif // _LIBCPP_REGEX
|