forked from KolibriOS/kolibrios
2486 lines
84 KiB
C++
2486 lines
84 KiB
C++
// class template regex -*- C++ -*-
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// Copyright (C) 2010-2013 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// Under Section 7 of GPL version 3, you are granted additional
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// permissions described in the GCC Runtime Library Exception, version
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// 3.1, as published by the Free Software Foundation.
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// You should have received a copy of the GNU General Public License and
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// a copy of the GCC Runtime Library Exception along with this program;
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// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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// <http://www.gnu.org/licenses/>.
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/**
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* @file bits/regex.h
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* This is an internal header file, included by other library headers.
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* Do not attempt to use it directly. @headername{regex}
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*/
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namespace std _GLIBCXX_VISIBILITY(default)
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{
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_GLIBCXX_BEGIN_NAMESPACE_VERSION
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/**
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* @addtogroup regex
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* @{
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*/
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/**
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* @brief Class regex_traits. Describes aspects of a regular expression.
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*
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* A regular expression traits class that satisfies the requirements of
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* section [28.7].
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*
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* The class %regex is parameterized around a set of related types and
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* functions used to complete the definition of its semantics. This class
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* satisfies the requirements of such a traits class.
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*/
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template<typename _Ch_type>
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struct regex_traits
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{
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public:
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typedef _Ch_type char_type;
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typedef std::basic_string<char_type> string_type;
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typedef std::locale locale_type;
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typedef std::ctype_base::mask char_class_type;
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public:
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/**
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* @brief Constructs a default traits object.
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*/
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regex_traits() { }
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/**
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* @brief Gives the length of a C-style string starting at @p __p.
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*
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* @param __p a pointer to the start of a character sequence.
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*
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* @returns the number of characters between @p *__p and the first
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* default-initialized value of type @p char_type. In other words, uses
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* the C-string algorithm for determining the length of a sequence of
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* characters.
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*/
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static std::size_t
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length(const char_type* __p)
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{ return string_type::traits_type::length(__p); }
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/**
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* @brief Performs the identity translation.
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*
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* @param __c A character to the locale-specific character set.
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*
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* @returns __c.
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*/
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char_type
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translate(char_type __c) const
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{ return __c; }
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/**
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* @brief Translates a character into a case-insensitive equivalent.
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*
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* @param __c A character to the locale-specific character set.
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*
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* @returns the locale-specific lower-case equivalent of __c.
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* @throws std::bad_cast if the imbued locale does not support the ctype
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* facet.
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*/
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char_type
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translate_nocase(char_type __c) const
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{
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typedef std::ctype<char_type> __ctype_type;
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const __ctype_type& __fctyp(use_facet<__ctype_type>(_M_locale));
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return __fctyp.tolower(__c);
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}
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/**
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* @brief Gets a sort key for a character sequence.
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*
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* @param __first beginning of the character sequence.
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* @param __last one-past-the-end of the character sequence.
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*
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* Returns a sort key for the character sequence designated by the
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* iterator range [F1, F2) such that if the character sequence [G1, G2)
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* sorts before the character sequence [H1, H2) then
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* v.transform(G1, G2) < v.transform(H1, H2).
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*
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* What this really does is provide a more efficient way to compare a
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* string to multiple other strings in locales with fancy collation
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* rules and equivalence classes.
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*
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* @returns a locale-specific sort key equivalent to the input range.
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*
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* @throws std::bad_cast if the current locale does not have a collate
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* facet.
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*/
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template<typename _Fwd_iter>
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string_type
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transform(_Fwd_iter __first, _Fwd_iter __last) const
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{
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typedef std::collate<char_type> __collate_type;
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const __collate_type& __fclt(use_facet<__collate_type>(_M_locale));
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string_type __s(__first, __last);
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return __fclt.transform(__s.data(), __s.data() + __s.size());
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}
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/**
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* @brief Gets a sort key for a character sequence, independent of case.
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*
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* @param __first beginning of the character sequence.
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* @param __last one-past-the-end of the character sequence.
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*
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* Effects: if typeid(use_facet<collate<_Ch_type> >) ==
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* typeid(collate_byname<_Ch_type>) and the form of the sort key
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* returned by collate_byname<_Ch_type>::transform(__first, __last)
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* is known and can be converted into a primary sort key
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* then returns that key, otherwise returns an empty string.
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*
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* @todo Implement this function.
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*/
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template<typename _Fwd_iter>
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string_type
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transform_primary(_Fwd_iter __first, _Fwd_iter __last) const
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{ return string_type(); }
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/**
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* @brief Gets a collation element by name.
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*
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* @param __first beginning of the collation element name.
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* @param __last one-past-the-end of the collation element name.
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*
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* @returns a sequence of one or more characters that represents the
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* collating element consisting of the character sequence designated by
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* the iterator range [__first, __last). Returns an empty string if the
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* character sequence is not a valid collating element.
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*
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* @todo Implement this function.
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*/
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template<typename _Fwd_iter>
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string_type
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lookup_collatename(_Fwd_iter __first, _Fwd_iter __last) const
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{ return string_type(); }
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/**
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* @brief Maps one or more characters to a named character
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* classification.
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*
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* @param __first beginning of the character sequence.
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* @param __last one-past-the-end of the character sequence.
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* @param __icase ignores the case of the classification name.
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*
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* @returns an unspecified value that represents the character
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* classification named by the character sequence designated by
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* the iterator range [__first, __last). If @p icase is true,
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* the returned mask identifies the classification regardless of
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* the case of the characters to be matched (for example,
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* [[:lower:]] is the same as [[:alpha:]]), otherwise a
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* case-dependent classification is returned. The value
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* returned shall be independent of the case of the characters
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* in the character sequence. If the name is not recognized then
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* returns a value that compares equal to 0.
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*
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* At least the following names (or their wide-character equivalent) are
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* supported.
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* - d
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* - w
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* - s
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* - alnum
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* - alpha
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* - blank
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* - cntrl
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* - digit
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* - graph
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* - lower
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* - print
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* - punct
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* - space
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* - upper
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* - xdigit
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*
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* @todo Implement this function.
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*/
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template<typename _Fwd_iter>
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char_class_type
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lookup_classname(_Fwd_iter __first, _Fwd_iter __last,
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bool __icase = false) const
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{ return 0; }
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/**
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* @brief Determines if @p c is a member of an identified class.
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*
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* @param __c a character.
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* @param __f a class type (as returned from lookup_classname).
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*
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* @returns true if the character @p __c is a member of the classification
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* represented by @p __f, false otherwise.
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*
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* @throws std::bad_cast if the current locale does not have a ctype
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* facet.
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*/
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bool
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isctype(_Ch_type __c, char_class_type __f) const;
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/**
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* @brief Converts a digit to an int.
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*
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* @param __ch a character representing a digit.
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* @param __radix the radix if the numeric conversion (limited to 8, 10,
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* or 16).
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*
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* @returns the value represented by the digit __ch in base radix if the
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* character __ch is a valid digit in base radix; otherwise returns -1.
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*/
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int
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value(_Ch_type __ch, int __radix) const;
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/**
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* @brief Imbues the regex_traits object with a copy of a new locale.
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*
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* @param __loc A locale.
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*
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* @returns a copy of the previous locale in use by the regex_traits
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* object.
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*
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* @note Calling imbue with a different locale than the one currently in
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* use invalidates all cached data held by *this.
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*/
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locale_type
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imbue(locale_type __loc)
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{
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std::swap(_M_locale, __loc);
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return __loc;
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}
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/**
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* @brief Gets a copy of the current locale in use by the regex_traits
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* object.
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*/
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locale_type
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getloc() const
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{ return _M_locale; }
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protected:
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locale_type _M_locale;
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};
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template<typename _Ch_type>
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bool
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regex_traits<_Ch_type>::
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isctype(_Ch_type __c, char_class_type __f) const
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{
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typedef std::ctype<char_type> __ctype_type;
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const __ctype_type& __fctyp(use_facet<__ctype_type>(_M_locale));
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if (__fctyp.is(__f, __c))
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return true;
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// special case of underscore in [[:w:]]
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if (__c == __fctyp.widen('_'))
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{
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const char __wb[] = "w";
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char_class_type __wt = this->lookup_classname(__wb,
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__wb + sizeof(__wb));
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if (__f | __wt)
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return true;
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}
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// special case of [[:space:]] in [[:blank:]]
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if (__fctyp.is(std::ctype_base::space, __c))
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{
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const char __bb[] = "blank";
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char_class_type __bt = this->lookup_classname(__bb,
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__bb + sizeof(__bb));
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if (__f | __bt)
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return true;
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}
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return false;
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}
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template<typename _Ch_type>
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int
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regex_traits<_Ch_type>::
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value(_Ch_type __ch, int __radix) const
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{
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std::basic_istringstream<char_type> __is(string_type(1, __ch));
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int __v;
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if (__radix == 8)
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__is >> std::oct;
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else if (__radix == 16)
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__is >> std::hex;
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__is >> __v;
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return __is.fail() ? -1 : __v;
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}
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// [7.8] Class basic_regex
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/**
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* Objects of specializations of this class represent regular expressions
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* constructed from sequences of character type @p _Ch_type.
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*
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* Storage for the regular expression is allocated and deallocated as
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* necessary by the member functions of this class.
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*/
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template<typename _Ch_type, typename _Rx_traits = regex_traits<_Ch_type> >
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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 _Ch_type value_type;
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typedef _Rx_traits traits_type;
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typedef typename traits_type::string_type string_type;
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typedef regex_constants::syntax_option_type flag_type;
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typedef typename traits_type::locale_type locale_type;
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/**
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* @name Constants
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* std [28.8.1](1)
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*/
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//@{
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static constexpr flag_type icase = regex_constants::icase;
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static constexpr flag_type nosubs = regex_constants::nosubs;
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static constexpr flag_type optimize = regex_constants::optimize;
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static constexpr flag_type collate = regex_constants::collate;
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static constexpr flag_type ECMAScript = regex_constants::ECMAScript;
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static constexpr flag_type basic = regex_constants::basic;
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static constexpr flag_type extended = regex_constants::extended;
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static constexpr flag_type awk = regex_constants::awk;
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static constexpr flag_type grep = regex_constants::grep;
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static constexpr flag_type egrep = regex_constants::egrep;
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//@}
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// [7.8.2] construct/copy/destroy
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/**
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* Constructs a basic regular expression that does not match any
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* character sequence.
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*/
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basic_regex()
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: _M_flags(ECMAScript),
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_M_automaton(__detail::__compile<const _Ch_type*, _Rx_traits>(0, 0,
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_M_traits, _M_flags))
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{ }
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/**
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* @brief Constructs a basic regular expression from the
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* sequence [__p, __p + char_traits<_Ch_type>::length(__p))
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* interpreted according to the flags in @p __f.
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*
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* @param __p A pointer to the start of a C-style null-terminated string
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* containing a regular expression.
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* @param __f Flags indicating the syntax rules and options.
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*
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* @throws regex_error if @p __p is not a valid regular expression.
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*/
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explicit
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basic_regex(const _Ch_type* __p, flag_type __f = ECMAScript)
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: _M_flags(__f),
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_M_automaton(__detail::__compile(__p, __p + _Rx_traits::length(__p),
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_M_traits, _M_flags))
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{ }
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/**
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* @brief Constructs a basic regular expression from the sequence
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* [p, p + len) interpreted according to the flags in @p f.
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*
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* @param __p A pointer to the start of a string containing a regular
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* expression.
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* @param __len The length of the string containing the regular
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* expression.
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* @param __f Flags indicating the syntax rules and options.
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*
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* @throws regex_error if @p __p is not a valid regular expression.
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*/
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basic_regex(const _Ch_type* __p, std::size_t __len, flag_type __f)
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: _M_flags(__f),
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_M_automaton(__detail::__compile(__p, __p + __len, _M_traits, _M_flags))
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{ }
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/**
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* @brief Copy-constructs a basic regular expression.
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*
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* @param __rhs A @p regex object.
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*/
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basic_regex(const basic_regex& __rhs)
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: _M_flags(__rhs._M_flags), _M_traits(__rhs._M_traits),
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_M_automaton(__rhs._M_automaton)
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{ }
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/**
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* @brief Move-constructs a basic regular expression.
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*
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* @param __rhs A @p regex object.
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*/
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basic_regex(const basic_regex&& __rhs) noexcept
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: _M_flags(__rhs._M_flags), _M_traits(__rhs._M_traits),
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_M_automaton(std::move(__rhs._M_automaton))
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{ }
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/**
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* @brief Constructs a basic regular expression from the string
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* @p s interpreted according to the flags in @p f.
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*
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* @param __s A string containing a regular expression.
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* @param __f Flags indicating the syntax rules and options.
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*
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* @throws regex_error if @p __s is not a valid regular expression.
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*/
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template<typename _Ch_traits, typename _Ch_alloc>
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explicit
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basic_regex(const std::basic_string<_Ch_type, _Ch_traits,
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_Ch_alloc>& __s,
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flag_type __f = ECMAScript)
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: _M_flags(__f),
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_M_automaton(__detail::__compile(__s.begin(), __s.end(),
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_M_traits, _M_flags))
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{ }
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/**
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* @brief Constructs a basic regular expression from the range
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* [first, last) interpreted according to the flags in @p f.
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*
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* @param __first The start of a range containing a valid regular
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* expression.
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* @param __last The end of a range containing a valid regular
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* expression.
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* @param __f The format flags of the regular expression.
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*
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* @throws regex_error if @p [__first, __last) is not a valid regular
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* expression.
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*/
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template<typename _InputIterator>
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basic_regex(_InputIterator __first, _InputIterator __last,
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flag_type __f = ECMAScript)
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: _M_flags(__f),
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_M_automaton(__detail::__compile(__first, __last, _M_traits, _M_flags))
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{ }
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/**
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* @brief Constructs a basic regular expression from an initializer list.
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*
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* @param __l The initializer list.
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* @param __f The format flags of the regular expression.
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*
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* @throws regex_error if @p __l is not a valid regular expression.
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*/
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basic_regex(initializer_list<_Ch_type> __l,
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flag_type __f = ECMAScript)
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: _M_flags(__f),
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_M_automaton(__detail::__compile(__l.begin(), __l.end(),
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_M_traits, _M_flags))
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{ }
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/**
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* @brief Destroys a basic regular expression.
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*/
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~basic_regex()
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{ }
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/**
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* @brief Assigns one regular expression to another.
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*/
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basic_regex&
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operator=(const basic_regex& __rhs)
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{ return this->assign(__rhs); }
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|
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/**
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* @brief Move-assigns one regular expression to another.
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*/
|
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basic_regex&
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operator=(basic_regex&& __rhs) noexcept
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{ return this->assign(std::move(__rhs)); }
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/**
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* @brief Replaces a regular expression with a new one constructed from
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* a C-style null-terminated string.
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*
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* @param __p A pointer to the start of a null-terminated C-style string
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* containing a regular expression.
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*/
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basic_regex&
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operator=(const _Ch_type* __p)
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{ return this->assign(__p, flags()); }
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|
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/**
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* @brief Replaces a regular expression with a new one constructed from
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* a string.
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*
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* @param __s A pointer to a string containing a regular expression.
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*/
|
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template<typename _Ch_typeraits, typename _Alloc>
|
|
basic_regex&
|
|
operator=(const basic_string<_Ch_type, _Ch_typeraits, _Alloc>& __s)
|
|
{ return this->assign(__s, flags()); }
|
|
|
|
// [7.8.3] assign
|
|
/**
|
|
* @brief the real assignment operator.
|
|
*
|
|
* @param __rhs Another regular expression object.
|
|
*/
|
|
basic_regex&
|
|
assign(const basic_regex& __rhs)
|
|
{
|
|
basic_regex __tmp(__rhs);
|
|
this->swap(__tmp);
|
|
return *this;
|
|
}
|
|
|
|
/**
|
|
* @brief The move-assignment operator.
|
|
*
|
|
* @param __rhs Another regular expression object.
|
|
*/
|
|
basic_regex&
|
|
assign(basic_regex&& __rhs) noexcept
|
|
{
|
|
basic_regex __tmp(std::move(__rhs));
|
|
this->swap(__tmp);
|
|
return *this;
|
|
}
|
|
|
|
/**
|
|
* @brief Assigns a new regular expression to a regex object from a
|
|
* C-style null-terminated string containing a regular expression
|
|
* pattern.
|
|
*
|
|
* @param __p A pointer to a C-style null-terminated string containing
|
|
* a regular expression pattern.
|
|
* @param __flags Syntax option flags.
|
|
*
|
|
* @throws regex_error if __p does not contain a valid regular
|
|
* expression pattern interpreted according to @p __flags. If
|
|
* regex_error is thrown, *this remains unchanged.
|
|
*/
|
|
basic_regex&
|
|
assign(const _Ch_type* __p, flag_type __flags = ECMAScript)
|
|
{ return this->assign(string_type(__p), __flags); }
|
|
|
|
/**
|
|
* @brief Assigns a new regular expression to a regex object from a
|
|
* C-style string containing a regular expression pattern.
|
|
*
|
|
* @param __p A pointer to a C-style string containing a
|
|
* regular expression pattern.
|
|
* @param __len The length of the regular expression pattern string.
|
|
* @param __flags Syntax option flags.
|
|
*
|
|
* @throws regex_error if p does not contain a valid regular
|
|
* expression pattern interpreted according to @p __flags. If
|
|
* regex_error is thrown, *this remains unchanged.
|
|
*/
|
|
basic_regex&
|
|
assign(const _Ch_type* __p, std::size_t __len, flag_type __flags)
|
|
{ return this->assign(string_type(__p, __len), __flags); }
|
|
|
|
/**
|
|
* @brief Assigns a new regular expression to a regex object from a
|
|
* string containing a regular expression pattern.
|
|
*
|
|
* @param __s A string containing a regular expression pattern.
|
|
* @param __flags Syntax option flags.
|
|
*
|
|
* @throws regex_error if __s does not contain a valid regular
|
|
* expression pattern interpreted according to @p __flags. If
|
|
* regex_error is thrown, *this remains unchanged.
|
|
*/
|
|
template<typename _Ch_typeraits, typename _Alloc>
|
|
basic_regex&
|
|
assign(const basic_string<_Ch_type, _Ch_typeraits, _Alloc>& __s,
|
|
flag_type __flags = ECMAScript)
|
|
{
|
|
basic_regex __tmp(__s, __flags);
|
|
this->swap(__tmp);
|
|
return *this;
|
|
}
|
|
|
|
/**
|
|
* @brief Assigns a new regular expression to a regex object.
|
|
*
|
|
* @param __first The start of a range containing a valid regular
|
|
* expression.
|
|
* @param __last The end of a range containing a valid regular
|
|
* expression.
|
|
* @param __flags Syntax option flags.
|
|
*
|
|
* @throws regex_error if p does not contain a valid regular
|
|
* expression pattern interpreted according to @p __flags. If
|
|
* regex_error is thrown, the object remains unchanged.
|
|
*/
|
|
template<typename _InputIterator>
|
|
basic_regex&
|
|
assign(_InputIterator __first, _InputIterator __last,
|
|
flag_type __flags = ECMAScript)
|
|
{ return this->assign(string_type(__first, __last), __flags); }
|
|
|
|
/**
|
|
* @brief Assigns a new regular expression to a regex object.
|
|
*
|
|
* @param __l An initializer list representing a regular expression.
|
|
* @param __flags Syntax option flags.
|
|
*
|
|
* @throws regex_error if @p __l does not contain a valid
|
|
* regular expression pattern interpreted according to @p
|
|
* __flags. If regex_error is thrown, the object remains
|
|
* unchanged.
|
|
*/
|
|
basic_regex&
|
|
assign(initializer_list<_Ch_type> __l, flag_type __flags = ECMAScript)
|
|
{ return this->assign(__l.begin(), __l.end(), __flags); }
|
|
|
|
// [7.8.4] const operations
|
|
/**
|
|
* @brief Gets the number of marked subexpressions within the regular
|
|
* expression.
|
|
*/
|
|
unsigned int
|
|
mark_count() const
|
|
{ return _M_automaton->_M_sub_count() - 1; }
|
|
|
|
/**
|
|
* @brief Gets the flags used to construct the regular expression
|
|
* or in the last call to assign().
|
|
*/
|
|
flag_type
|
|
flags() const
|
|
{ return _M_flags; }
|
|
|
|
// [7.8.5] locale
|
|
/**
|
|
* @brief Imbues the regular expression object with the given locale.
|
|
*
|
|
* @param __loc A locale.
|
|
*/
|
|
locale_type
|
|
imbue(locale_type __loc)
|
|
{ return _M_traits.imbue(__loc); }
|
|
|
|
/**
|
|
* @brief Gets the locale currently imbued in the regular expression
|
|
* object.
|
|
*/
|
|
locale_type
|
|
getloc() const
|
|
{ return _M_traits.getloc(); }
|
|
|
|
// [7.8.6] swap
|
|
/**
|
|
* @brief Swaps the contents of two regular expression objects.
|
|
*
|
|
* @param __rhs Another regular expression object.
|
|
*/
|
|
void
|
|
swap(basic_regex& __rhs)
|
|
{
|
|
std::swap(_M_flags, __rhs._M_flags);
|
|
std::swap(_M_traits, __rhs._M_traits);
|
|
std::swap(_M_automaton, __rhs._M_automaton);
|
|
}
|
|
|
|
#ifdef _GLIBCXX_DEBUG
|
|
void
|
|
_M_dot(std::ostream& __ostr)
|
|
{ _M_automaton->_M_dot(__ostr); }
|
|
#endif
|
|
|
|
const __detail::_AutomatonPtr&
|
|
_M_get_automaton() const
|
|
{ return _M_automaton; }
|
|
|
|
protected:
|
|
flag_type _M_flags;
|
|
_Rx_traits _M_traits;
|
|
__detail::_AutomatonPtr _M_automaton;
|
|
};
|
|
|
|
/** @brief Standard regular expressions. */
|
|
typedef basic_regex<char> regex;
|
|
|
|
#ifdef _GLIBCXX_USE_WCHAR_T
|
|
/** @brief Standard wide-character regular expressions. */
|
|
typedef basic_regex<wchar_t> wregex;
|
|
#endif
|
|
|
|
|
|
// [7.8.6] basic_regex swap
|
|
/**
|
|
* @brief Swaps the contents of two regular expression objects.
|
|
* @param __lhs First regular expression.
|
|
* @param __rhs Second regular expression.
|
|
*/
|
|
template<typename _Ch_type, typename _Rx_traits>
|
|
inline void
|
|
swap(basic_regex<_Ch_type, _Rx_traits>& __lhs,
|
|
basic_regex<_Ch_type, _Rx_traits>& __rhs)
|
|
{ __lhs.swap(__rhs); }
|
|
|
|
|
|
// [7.9] Class template sub_match
|
|
/**
|
|
* A sequence of characters matched by a particular marked sub-expression.
|
|
*
|
|
* An object of this class is essentially a pair of iterators marking a
|
|
* matched subexpression within a regular expression pattern match. Such
|
|
* objects can be converted to and compared with std::basic_string objects
|
|
* of a similar base character type as the pattern matched by the regular
|
|
* expression.
|
|
*
|
|
* The iterators that make up the pair are the usual half-open interval
|
|
* referencing the actual original pattern matched.
|
|
*/
|
|
template<typename _BiIter>
|
|
class sub_match : public std::pair<_BiIter, _BiIter>
|
|
{
|
|
typedef iterator_traits<_BiIter> __iter_traits;
|
|
|
|
public:
|
|
typedef typename __iter_traits::value_type value_type;
|
|
typedef typename __iter_traits::difference_type difference_type;
|
|
typedef _BiIter iterator;
|
|
typedef std::basic_string<value_type> string_type;
|
|
|
|
bool matched;
|
|
|
|
constexpr sub_match() : matched() { }
|
|
|
|
/**
|
|
* Gets the length of the matching sequence.
|
|
*/
|
|
difference_type
|
|
length() const
|
|
{ return this->matched ? std::distance(this->first, this->second) : 0; }
|
|
|
|
/**
|
|
* @brief Gets the matching sequence as a string.
|
|
*
|
|
* @returns the matching sequence as a string.
|
|
*
|
|
* This is the implicit conversion operator. It is identical to the
|
|
* str() member function except that it will want to pop up in
|
|
* unexpected places and cause a great deal of confusion and cursing
|
|
* from the unwary.
|
|
*/
|
|
operator string_type() const
|
|
{
|
|
return this->matched
|
|
? string_type(this->first, this->second)
|
|
: string_type();
|
|
}
|
|
|
|
/**
|
|
* @brief Gets the matching sequence as a string.
|
|
*
|
|
* @returns the matching sequence as a string.
|
|
*/
|
|
string_type
|
|
str() const
|
|
{
|
|
return this->matched
|
|
? string_type(this->first, this->second)
|
|
: string_type();
|
|
}
|
|
|
|
/**
|
|
* @brief Compares this and another matched sequence.
|
|
*
|
|
* @param __s Another matched sequence to compare to this one.
|
|
*
|
|
* @retval <0 this matched sequence will collate before @p __s.
|
|
* @retval =0 this matched sequence is equivalent to @p __s.
|
|
* @retval <0 this matched sequence will collate after @p __s.
|
|
*/
|
|
int
|
|
compare(const sub_match& __s) const
|
|
{ return this->str().compare(__s.str()); }
|
|
|
|
/**
|
|
* @brief Compares this sub_match to a string.
|
|
*
|
|
* @param __s A string to compare to this sub_match.
|
|
*
|
|
* @retval <0 this matched sequence will collate before @p __s.
|
|
* @retval =0 this matched sequence is equivalent to @p __s.
|
|
* @retval <0 this matched sequence will collate after @p __s.
|
|
*/
|
|
int
|
|
compare(const string_type& __s) const
|
|
{ return this->str().compare(__s); }
|
|
|
|
/**
|
|
* @brief Compares this sub_match to a C-style string.
|
|
*
|
|
* @param __s A C-style string to compare to this sub_match.
|
|
*
|
|
* @retval <0 this matched sequence will collate before @p __s.
|
|
* @retval =0 this matched sequence is equivalent to @p __s.
|
|
* @retval <0 this matched sequence will collate after @p __s.
|
|
*/
|
|
int
|
|
compare(const value_type* __s) const
|
|
{ return this->str().compare(__s); }
|
|
};
|
|
|
|
|
|
/** @brief Standard regex submatch over a C-style null-terminated string. */
|
|
typedef sub_match<const char*> csub_match;
|
|
|
|
/** @brief Standard regex submatch over a standard string. */
|
|
typedef sub_match<string::const_iterator> ssub_match;
|
|
|
|
#ifdef _GLIBCXX_USE_WCHAR_T
|
|
/** @brief Regex submatch over a C-style null-terminated wide string. */
|
|
typedef sub_match<const wchar_t*> wcsub_match;
|
|
|
|
/** @brief Regex submatch over a standard wide string. */
|
|
typedef sub_match<wstring::const_iterator> wssub_match;
|
|
#endif
|
|
|
|
// [7.9.2] sub_match non-member operators
|
|
|
|
/**
|
|
* @brief Tests the equivalence of two regular expression submatches.
|
|
* @param __lhs First regular expression submatch.
|
|
* @param __rhs Second regular expression submatch.
|
|
* @returns true if @a __lhs is equivalent to @a __rhs, false otherwise.
|
|
*/
|
|
template<typename _BiIter>
|
|
inline bool
|
|
operator==(const sub_match<_BiIter>& __lhs, const sub_match<_BiIter>& __rhs)
|
|
{ return __lhs.compare(__rhs) == 0; }
|
|
|
|
/**
|
|
* @brief Tests the inequivalence of two regular expression submatches.
|
|
* @param __lhs First regular expression submatch.
|
|
* @param __rhs Second regular expression submatch.
|
|
* @returns true if @a __lhs is not equivalent to @a __rhs, false otherwise.
|
|
*/
|
|
template<typename _BiIter>
|
|
inline bool
|
|
operator!=(const sub_match<_BiIter>& __lhs, const sub_match<_BiIter>& __rhs)
|
|
{ return __lhs.compare(__rhs) != 0; }
|
|
|
|
/**
|
|
* @brief Tests the ordering of two regular expression submatches.
|
|
* @param __lhs First regular expression submatch.
|
|
* @param __rhs Second regular expression submatch.
|
|
* @returns true if @a __lhs precedes @a __rhs, false otherwise.
|
|
*/
|
|
template<typename _BiIter>
|
|
inline bool
|
|
operator<(const sub_match<_BiIter>& __lhs, const sub_match<_BiIter>& __rhs)
|
|
{ return __lhs.compare(__rhs) < 0; }
|
|
|
|
/**
|
|
* @brief Tests the ordering of two regular expression submatches.
|
|
* @param __lhs First regular expression submatch.
|
|
* @param __rhs Second regular expression submatch.
|
|
* @returns true if @a __lhs does not succeed @a __rhs, false otherwise.
|
|
*/
|
|
template<typename _BiIter>
|
|
inline bool
|
|
operator<=(const sub_match<_BiIter>& __lhs, const sub_match<_BiIter>& __rhs)
|
|
{ return __lhs.compare(__rhs) <= 0; }
|
|
|
|
/**
|
|
* @brief Tests the ordering of two regular expression submatches.
|
|
* @param __lhs First regular expression submatch.
|
|
* @param __rhs Second regular expression submatch.
|
|
* @returns true if @a __lhs does not precede @a __rhs, false otherwise.
|
|
*/
|
|
template<typename _BiIter>
|
|
inline bool
|
|
operator>=(const sub_match<_BiIter>& __lhs, const sub_match<_BiIter>& __rhs)
|
|
{ return __lhs.compare(__rhs) >= 0; }
|
|
|
|
/**
|
|
* @brief Tests the ordering of two regular expression submatches.
|
|
* @param __lhs First regular expression submatch.
|
|
* @param __rhs Second regular expression submatch.
|
|
* @returns true if @a __lhs succeeds @a __rhs, false otherwise.
|
|
*/
|
|
template<typename _BiIter>
|
|
inline bool
|
|
operator>(const sub_match<_BiIter>& __lhs, const sub_match<_BiIter>& __rhs)
|
|
{ return __lhs.compare(__rhs) > 0; }
|
|
|
|
// Alias for sub_match'd string.
|
|
template<typename _Bi_iter, typename _Ch_traits, typename _Ch_alloc>
|
|
using __sub_match_string = basic_string<
|
|
typename iterator_traits<_Bi_iter>::value_type,
|
|
_Ch_traits, _Ch_alloc>;
|
|
|
|
/**
|
|
* @brief Tests the equivalence of a string and a regular expression
|
|
* submatch.
|
|
* @param __lhs A string.
|
|
* @param __rhs A regular expression submatch.
|
|
* @returns true if @a __lhs is equivalent to @a __rhs, false otherwise.
|
|
*/
|
|
template<typename _Bi_iter, typename _Ch_traits, typename _Ch_alloc>
|
|
inline bool
|
|
operator==(const __sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>& __lhs,
|
|
const sub_match<_Bi_iter>& __rhs)
|
|
{ return __rhs.compare(__lhs.c_str()) == 0; }
|
|
|
|
/**
|
|
* @brief Tests the inequivalence of a string and a regular expression
|
|
* submatch.
|
|
* @param __lhs A string.
|
|
* @param __rhs A regular expression submatch.
|
|
* @returns true if @a __lhs is not equivalent to @a __rhs, false otherwise.
|
|
*/
|
|
template<typename _Bi_iter, typename _Ch_traits, typename _Ch_alloc>
|
|
inline bool
|
|
operator!=(const __sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>& __lhs,
|
|
const sub_match<_Bi_iter>& __rhs)
|
|
{ return !(__lhs == __rhs); }
|
|
|
|
/**
|
|
* @brief Tests the ordering of a string and a regular expression submatch.
|
|
* @param __lhs A string.
|
|
* @param __rhs A regular expression submatch.
|
|
* @returns true if @a __lhs precedes @a __rhs, false otherwise.
|
|
*/
|
|
template<typename _Bi_iter, typename _Ch_traits, typename _Ch_alloc>
|
|
inline bool
|
|
operator<(const __sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>& __lhs,
|
|
const sub_match<_Bi_iter>& __rhs)
|
|
{ return __rhs.compare(__lhs.c_str()) > 0; }
|
|
|
|
/**
|
|
* @brief Tests the ordering of a string and a regular expression submatch.
|
|
* @param __lhs A string.
|
|
* @param __rhs A regular expression submatch.
|
|
* @returns true if @a __lhs succeeds @a __rhs, false otherwise.
|
|
*/
|
|
template<typename _Bi_iter, typename _Ch_traits, typename _Ch_alloc>
|
|
inline bool
|
|
operator>(const __sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>& __lhs,
|
|
const sub_match<_Bi_iter>& __rhs)
|
|
{ return __rhs < __lhs; }
|
|
|
|
/**
|
|
* @brief Tests the ordering of a string and a regular expression submatch.
|
|
* @param __lhs A string.
|
|
* @param __rhs A regular expression submatch.
|
|
* @returns true if @a __lhs does not precede @a __rhs, false otherwise.
|
|
*/
|
|
template<typename _Bi_iter, typename _Ch_traits, typename _Ch_alloc>
|
|
inline bool
|
|
operator>=(const __sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>& __lhs,
|
|
const sub_match<_Bi_iter>& __rhs)
|
|
{ return !(__lhs < __rhs); }
|
|
|
|
/**
|
|
* @brief Tests the ordering of a string and a regular expression submatch.
|
|
* @param __lhs A string.
|
|
* @param __rhs A regular expression submatch.
|
|
* @returns true if @a __lhs does not succeed @a __rhs, false otherwise.
|
|
*/
|
|
template<typename _Bi_iter, typename _Ch_traits, typename _Ch_alloc>
|
|
inline bool
|
|
operator<=(const __sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>& __lhs,
|
|
const sub_match<_Bi_iter>& __rhs)
|
|
{ return !(__rhs < __lhs); }
|
|
|
|
/**
|
|
* @brief Tests the equivalence of a regular expression submatch and a
|
|
* string.
|
|
* @param __lhs A regular expression submatch.
|
|
* @param __rhs A string.
|
|
* @returns true if @a __lhs is equivalent to @a __rhs, false otherwise.
|
|
*/
|
|
template<typename _Bi_iter, typename _Ch_traits, typename _Ch_alloc>
|
|
inline bool
|
|
operator==(const sub_match<_Bi_iter>& __lhs,
|
|
const __sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>& __rhs)
|
|
{ return __lhs.compare(__rhs.c_str()) == 0; }
|
|
|
|
/**
|
|
* @brief Tests the inequivalence of a regular expression submatch and a
|
|
* string.
|
|
* @param __lhs A regular expression submatch.
|
|
* @param __rhs A string.
|
|
* @returns true if @a __lhs is not equivalent to @a __rhs, false otherwise.
|
|
*/
|
|
template<typename _Bi_iter, typename _Ch_traits, typename _Ch_alloc>
|
|
inline bool
|
|
operator!=(const sub_match<_Bi_iter>& __lhs,
|
|
const __sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>& __rhs)
|
|
{ return !(__lhs == __rhs); }
|
|
|
|
/**
|
|
* @brief Tests the ordering of a regular expression submatch and a string.
|
|
* @param __lhs A regular expression submatch.
|
|
* @param __rhs A string.
|
|
* @returns true if @a __lhs precedes @a __rhs, false otherwise.
|
|
*/
|
|
template<typename _Bi_iter, class _Ch_traits, class _Ch_alloc>
|
|
inline bool
|
|
operator<(const sub_match<_Bi_iter>& __lhs,
|
|
const __sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>& __rhs)
|
|
{ return __lhs.compare(__rhs.c_str()) < 0; }
|
|
|
|
/**
|
|
* @brief Tests the ordering of a regular expression submatch and a string.
|
|
* @param __lhs A regular expression submatch.
|
|
* @param __rhs A string.
|
|
* @returns true if @a __lhs succeeds @a __rhs, false otherwise.
|
|
*/
|
|
template<typename _Bi_iter, class _Ch_traits, class _Ch_alloc>
|
|
inline bool
|
|
operator>(const sub_match<_Bi_iter>& __lhs,
|
|
const __sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>& __rhs)
|
|
{ return __rhs < __lhs; }
|
|
|
|
/**
|
|
* @brief Tests the ordering of a regular expression submatch and a string.
|
|
* @param __lhs A regular expression submatch.
|
|
* @param __rhs A string.
|
|
* @returns true if @a __lhs does not precede @a __rhs, false otherwise.
|
|
*/
|
|
template<typename _Bi_iter, class _Ch_traits, class _Ch_alloc>
|
|
inline bool
|
|
operator>=(const sub_match<_Bi_iter>& __lhs,
|
|
const __sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>& __rhs)
|
|
{ return !(__lhs < __rhs); }
|
|
|
|
/**
|
|
* @brief Tests the ordering of a regular expression submatch and a string.
|
|
* @param __lhs A regular expression submatch.
|
|
* @param __rhs A string.
|
|
* @returns true if @a __lhs does not succeed @a __rhs, false otherwise.
|
|
*/
|
|
template<typename _Bi_iter, class _Ch_traits, class _Ch_alloc>
|
|
inline bool
|
|
operator<=(const sub_match<_Bi_iter>& __lhs,
|
|
const __sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>& __rhs)
|
|
{ return !(__rhs < __lhs); }
|
|
|
|
/**
|
|
* @brief Tests the equivalence of a C string and a regular expression
|
|
* submatch.
|
|
* @param __lhs A C string.
|
|
* @param __rhs A regular expression submatch.
|
|
* @returns true if @a __lhs is equivalent to @a __rhs, false otherwise.
|
|
*/
|
|
template<typename _Bi_iter>
|
|
inline bool
|
|
operator==(typename iterator_traits<_Bi_iter>::value_type const* __lhs,
|
|
const sub_match<_Bi_iter>& __rhs)
|
|
{ return __rhs.compare(__lhs) == 0; }
|
|
|
|
/**
|
|
* @brief Tests the inequivalence of an iterator value and a regular
|
|
* expression submatch.
|
|
* @param __lhs A regular expression submatch.
|
|
* @param __rhs A string.
|
|
* @returns true if @a __lhs is not equivalent to @a __rhs, false otherwise.
|
|
*/
|
|
template<typename _Bi_iter>
|
|
inline bool
|
|
operator!=(typename iterator_traits<_Bi_iter>::value_type const* __lhs,
|
|
const sub_match<_Bi_iter>& __rhs)
|
|
{ return !(__lhs == __rhs); }
|
|
|
|
/**
|
|
* @brief Tests the ordering of a string and a regular expression submatch.
|
|
* @param __lhs A string.
|
|
* @param __rhs A regular expression submatch.
|
|
* @returns true if @a __lhs precedes @a __rhs, false otherwise.
|
|
*/
|
|
template<typename _Bi_iter>
|
|
inline bool
|
|
operator<(typename iterator_traits<_Bi_iter>::value_type const* __lhs,
|
|
const sub_match<_Bi_iter>& __rhs)
|
|
{ return __rhs.compare(__lhs) > 0; }
|
|
|
|
/**
|
|
* @brief Tests the ordering of a string and a regular expression submatch.
|
|
* @param __lhs A string.
|
|
* @param __rhs A regular expression submatch.
|
|
* @returns true if @a __lhs succeeds @a __rhs, false otherwise.
|
|
*/
|
|
template<typename _Bi_iter>
|
|
inline bool
|
|
operator>(typename iterator_traits<_Bi_iter>::value_type const* __lhs,
|
|
const sub_match<_Bi_iter>& __rhs)
|
|
{ return __rhs < __lhs; }
|
|
|
|
/**
|
|
* @brief Tests the ordering of a string and a regular expression submatch.
|
|
* @param __lhs A string.
|
|
* @param __rhs A regular expression submatch.
|
|
* @returns true if @a __lhs does not precede @a __rhs, false otherwise.
|
|
*/
|
|
template<typename _Bi_iter>
|
|
inline bool
|
|
operator>=(typename iterator_traits<_Bi_iter>::value_type const* __lhs,
|
|
const sub_match<_Bi_iter>& __rhs)
|
|
{ return !(__lhs < __rhs); }
|
|
|
|
/**
|
|
* @brief Tests the ordering of a string and a regular expression submatch.
|
|
* @param __lhs A string.
|
|
* @param __rhs A regular expression submatch.
|
|
* @returns true if @a __lhs does not succeed @a __rhs, false otherwise.
|
|
*/
|
|
template<typename _Bi_iter>
|
|
inline bool
|
|
operator<=(typename iterator_traits<_Bi_iter>::value_type const* __lhs,
|
|
const sub_match<_Bi_iter>& __rhs)
|
|
{ return !(__rhs < __lhs); }
|
|
|
|
/**
|
|
* @brief Tests the equivalence of a regular expression submatch and a
|
|
* string.
|
|
* @param __lhs A regular expression submatch.
|
|
* @param __rhs A pointer to a string?
|
|
* @returns true if @a __lhs is equivalent to @a __rhs, false otherwise.
|
|
*/
|
|
template<typename _Bi_iter>
|
|
inline bool
|
|
operator==(const sub_match<_Bi_iter>& __lhs,
|
|
typename iterator_traits<_Bi_iter>::value_type const* __rhs)
|
|
{ return __lhs.compare(__rhs) == 0; }
|
|
|
|
/**
|
|
* @brief Tests the inequivalence of a regular expression submatch and a
|
|
* string.
|
|
* @param __lhs A regular expression submatch.
|
|
* @param __rhs A pointer to a string.
|
|
* @returns true if @a __lhs is not equivalent to @a __rhs, false otherwise.
|
|
*/
|
|
template<typename _Bi_iter>
|
|
inline bool
|
|
operator!=(const sub_match<_Bi_iter>& __lhs,
|
|
typename iterator_traits<_Bi_iter>::value_type const* __rhs)
|
|
{ return !(__lhs == __rhs); }
|
|
|
|
/**
|
|
* @brief Tests the ordering of a regular expression submatch and a string.
|
|
* @param __lhs A regular expression submatch.
|
|
* @param __rhs A string.
|
|
* @returns true if @a __lhs precedes @a __rhs, false otherwise.
|
|
*/
|
|
template<typename _Bi_iter>
|
|
inline bool
|
|
operator<(const sub_match<_Bi_iter>& __lhs,
|
|
typename iterator_traits<_Bi_iter>::value_type const* __rhs)
|
|
{ return __lhs.compare(__rhs) < 0; }
|
|
|
|
/**
|
|
* @brief Tests the ordering of a regular expression submatch and a string.
|
|
* @param __lhs A regular expression submatch.
|
|
* @param __rhs A string.
|
|
* @returns true if @a __lhs succeeds @a __rhs, false otherwise.
|
|
*/
|
|
template<typename _Bi_iter>
|
|
inline bool
|
|
operator>(const sub_match<_Bi_iter>& __lhs,
|
|
typename iterator_traits<_Bi_iter>::value_type const* __rhs)
|
|
{ return __rhs < __lhs; }
|
|
|
|
/**
|
|
* @brief Tests the ordering of a regular expression submatch and a string.
|
|
* @param __lhs A regular expression submatch.
|
|
* @param __rhs A string.
|
|
* @returns true if @a __lhs does not precede @a __rhs, false otherwise.
|
|
*/
|
|
template<typename _Bi_iter>
|
|
inline bool
|
|
operator>=(const sub_match<_Bi_iter>& __lhs,
|
|
typename iterator_traits<_Bi_iter>::value_type const* __rhs)
|
|
{ return !(__lhs < __rhs); }
|
|
|
|
/**
|
|
* @brief Tests the ordering of a regular expression submatch and a string.
|
|
* @param __lhs A regular expression submatch.
|
|
* @param __rhs A string.
|
|
* @returns true if @a __lhs does not succeed @a __rhs, false otherwise.
|
|
*/
|
|
template<typename _Bi_iter>
|
|
inline bool
|
|
operator<=(const sub_match<_Bi_iter>& __lhs,
|
|
typename iterator_traits<_Bi_iter>::value_type const* __rhs)
|
|
{ return !(__rhs < __lhs); }
|
|
|
|
/**
|
|
* @brief Tests the equivalence of a string and a regular expression
|
|
* submatch.
|
|
* @param __lhs A string.
|
|
* @param __rhs A regular expression submatch.
|
|
* @returns true if @a __lhs is equivalent to @a __rhs, false otherwise.
|
|
*/
|
|
template<typename _Bi_iter>
|
|
inline bool
|
|
operator==(typename iterator_traits<_Bi_iter>::value_type const& __lhs,
|
|
const sub_match<_Bi_iter>& __rhs)
|
|
{
|
|
typedef typename sub_match<_Bi_iter>::string_type string_type;
|
|
return __rhs.compare(string_type(1, __lhs)) == 0;
|
|
}
|
|
|
|
/**
|
|
* @brief Tests the inequivalence of a string and a regular expression
|
|
* submatch.
|
|
* @param __lhs A string.
|
|
* @param __rhs A regular expression submatch.
|
|
* @returns true if @a __lhs is not equivalent to @a __rhs, false otherwise.
|
|
*/
|
|
template<typename _Bi_iter>
|
|
inline bool
|
|
operator!=(typename iterator_traits<_Bi_iter>::value_type const& __lhs,
|
|
const sub_match<_Bi_iter>& __rhs)
|
|
{ return !(__lhs == __rhs); }
|
|
|
|
/**
|
|
* @brief Tests the ordering of a string and a regular expression submatch.
|
|
* @param __lhs A string.
|
|
* @param __rhs A regular expression submatch.
|
|
* @returns true if @a __lhs precedes @a __rhs, false otherwise.
|
|
*/
|
|
template<typename _Bi_iter>
|
|
inline bool
|
|
operator<(typename iterator_traits<_Bi_iter>::value_type const& __lhs,
|
|
const sub_match<_Bi_iter>& __rhs)
|
|
{
|
|
typedef typename sub_match<_Bi_iter>::string_type string_type;
|
|
return __rhs.compare(string_type(1, __lhs)) > 0;
|
|
}
|
|
|
|
/**
|
|
* @brief Tests the ordering of a string and a regular expression submatch.
|
|
* @param __lhs A string.
|
|
* @param __rhs A regular expression submatch.
|
|
* @returns true if @a __lhs succeeds @a __rhs, false otherwise.
|
|
*/
|
|
template<typename _Bi_iter>
|
|
inline bool
|
|
operator>(typename iterator_traits<_Bi_iter>::value_type const& __lhs,
|
|
const sub_match<_Bi_iter>& __rhs)
|
|
{ return __rhs < __lhs; }
|
|
|
|
/**
|
|
* @brief Tests the ordering of a string and a regular expression submatch.
|
|
* @param __lhs A string.
|
|
* @param __rhs A regular expression submatch.
|
|
* @returns true if @a __lhs does not precede @a __rhs, false otherwise.
|
|
*/
|
|
template<typename _Bi_iter>
|
|
inline bool
|
|
operator>=(typename iterator_traits<_Bi_iter>::value_type const& __lhs,
|
|
const sub_match<_Bi_iter>& __rhs)
|
|
{ return !(__lhs < __rhs); }
|
|
|
|
/**
|
|
* @brief Tests the ordering of a string and a regular expression submatch.
|
|
* @param __lhs A string.
|
|
* @param __rhs A regular expression submatch.
|
|
* @returns true if @a __lhs does not succeed @a __rhs, false otherwise.
|
|
*/
|
|
template<typename _Bi_iter>
|
|
inline bool
|
|
operator<=(typename iterator_traits<_Bi_iter>::value_type const& __lhs,
|
|
const sub_match<_Bi_iter>& __rhs)
|
|
{ return !(__rhs < __lhs); }
|
|
|
|
/**
|
|
* @brief Tests the equivalence of a regular expression submatch and a
|
|
* string.
|
|
* @param __lhs A regular expression submatch.
|
|
* @param __rhs A const string reference.
|
|
* @returns true if @a __lhs is equivalent to @a __rhs, false otherwise.
|
|
*/
|
|
template<typename _Bi_iter>
|
|
inline bool
|
|
operator==(const sub_match<_Bi_iter>& __lhs,
|
|
typename iterator_traits<_Bi_iter>::value_type const& __rhs)
|
|
{
|
|
typedef typename sub_match<_Bi_iter>::string_type string_type;
|
|
return __lhs.compare(string_type(1, __rhs)) == 0;
|
|
}
|
|
|
|
/**
|
|
* @brief Tests the inequivalence of a regular expression submatch and a
|
|
* string.
|
|
* @param __lhs A regular expression submatch.
|
|
* @param __rhs A const string reference.
|
|
* @returns true if @a __lhs is not equivalent to @a __rhs, false otherwise.
|
|
*/
|
|
template<typename _Bi_iter>
|
|
inline bool
|
|
operator!=(const sub_match<_Bi_iter>& __lhs,
|
|
typename iterator_traits<_Bi_iter>::value_type const& __rhs)
|
|
{ return !(__lhs == __rhs); }
|
|
|
|
/**
|
|
* @brief Tests the ordering of a regular expression submatch and a string.
|
|
* @param __lhs A regular expression submatch.
|
|
* @param __rhs A const string reference.
|
|
* @returns true if @a __lhs precedes @a __rhs, false otherwise.
|
|
*/
|
|
template<typename _Bi_iter>
|
|
inline bool
|
|
operator<(const sub_match<_Bi_iter>& __lhs,
|
|
typename iterator_traits<_Bi_iter>::value_type const& __rhs)
|
|
{
|
|
typedef typename sub_match<_Bi_iter>::string_type string_type;
|
|
return __lhs.compare(string_type(1, __rhs)) < 0;
|
|
}
|
|
|
|
/**
|
|
* @brief Tests the ordering of a regular expression submatch and a string.
|
|
* @param __lhs A regular expression submatch.
|
|
* @param __rhs A const string reference.
|
|
* @returns true if @a __lhs succeeds @a __rhs, false otherwise.
|
|
*/
|
|
template<typename _Bi_iter>
|
|
inline bool
|
|
operator>(const sub_match<_Bi_iter>& __lhs,
|
|
typename iterator_traits<_Bi_iter>::value_type const& __rhs)
|
|
{ return __rhs < __lhs; }
|
|
|
|
/**
|
|
* @brief Tests the ordering of a regular expression submatch and a string.
|
|
* @param __lhs A regular expression submatch.
|
|
* @param __rhs A const string reference.
|
|
* @returns true if @a __lhs does not precede @a __rhs, false otherwise.
|
|
*/
|
|
template<typename _Bi_iter>
|
|
inline bool
|
|
operator>=(const sub_match<_Bi_iter>& __lhs,
|
|
typename iterator_traits<_Bi_iter>::value_type const& __rhs)
|
|
{ return !(__lhs < __rhs); }
|
|
|
|
/**
|
|
* @brief Tests the ordering of a regular expression submatch and a string.
|
|
* @param __lhs A regular expression submatch.
|
|
* @param __rhs A const string reference.
|
|
* @returns true if @a __lhs does not succeed @a __rhs, false otherwise.
|
|
*/
|
|
template<typename _Bi_iter>
|
|
inline bool
|
|
operator<=(const sub_match<_Bi_iter>& __lhs,
|
|
typename iterator_traits<_Bi_iter>::value_type const& __rhs)
|
|
{ return !(__rhs < __lhs); }
|
|
|
|
/**
|
|
* @brief Inserts a matched string into an output stream.
|
|
*
|
|
* @param __os The output stream.
|
|
* @param __m A submatch string.
|
|
*
|
|
* @returns the output stream with the submatch string inserted.
|
|
*/
|
|
template<typename _Ch_type, typename _Ch_traits, typename _Bi_iter>
|
|
inline
|
|
basic_ostream<_Ch_type, _Ch_traits>&
|
|
operator<<(basic_ostream<_Ch_type, _Ch_traits>& __os,
|
|
const sub_match<_Bi_iter>& __m)
|
|
{ return __os << __m.str(); }
|
|
|
|
// [7.10] Class template match_results
|
|
|
|
/*
|
|
* Special sub_match object representing an unmatched sub-expression.
|
|
*/
|
|
template<typename _Bi_iter>
|
|
inline const sub_match<_Bi_iter>&
|
|
__unmatched_sub()
|
|
{
|
|
static const sub_match<_Bi_iter> __unmatched = sub_match<_Bi_iter>();
|
|
return __unmatched;
|
|
}
|
|
|
|
/**
|
|
* @brief The results of a match or search operation.
|
|
*
|
|
* A collection of character sequences representing the result of a regular
|
|
* expression match. Storage for the collection is allocated and freed as
|
|
* necessary by the member functions of class template match_results.
|
|
*
|
|
* This class satisfies the Sequence requirements, with the exception that
|
|
* only the operations defined for a const-qualified Sequence are supported.
|
|
*
|
|
* The sub_match object stored at index 0 represents sub-expression 0, i.e.
|
|
* the whole match. In this case the %sub_match member matched is always true.
|
|
* The sub_match object stored at index n denotes what matched the marked
|
|
* sub-expression n within the matched expression. If the sub-expression n
|
|
* participated in a regular expression match then the %sub_match member
|
|
* matched evaluates to true, and members first and second denote the range
|
|
* of characters [first, second) which formed that match. Otherwise matched
|
|
* is false, and members first and second point to the end of the sequence
|
|
* that was searched.
|
|
*
|
|
* @nosubgrouping
|
|
*/
|
|
template<typename _Bi_iter,
|
|
typename _Alloc = allocator<sub_match<_Bi_iter> > >
|
|
class match_results
|
|
: private std::vector<sub_match<_Bi_iter>, _Alloc>
|
|
{
|
|
private:
|
|
/*
|
|
* The vector base is empty if this does not represent a successful match.
|
|
* Otherwise it contains n+3 elements where n is the number of marked
|
|
* sub-expressions:
|
|
* [0] entire match
|
|
* [1] 1st marked subexpression
|
|
* ...
|
|
* [n] nth marked subexpression
|
|
* [n+1] prefix
|
|
* [n+2] suffix
|
|
*/
|
|
typedef std::vector<sub_match<_Bi_iter>, _Alloc> _Base_type;
|
|
typedef std::iterator_traits<_Bi_iter> __iter_traits;
|
|
typedef regex_constants::match_flag_type match_flag_type;
|
|
|
|
public:
|
|
/**
|
|
* @name 10.? Public Types
|
|
*/
|
|
//@{
|
|
typedef _Alloc allocator_type;
|
|
typedef sub_match<_Bi_iter> value_type;
|
|
typedef const value_type& const_reference;
|
|
typedef const_reference reference;
|
|
typedef typename _Base_type::const_iterator const_iterator;
|
|
typedef const_iterator iterator;
|
|
typedef typename __iter_traits::difference_type difference_type;
|
|
typedef typename __iter_traits::value_type char_type;
|
|
typedef typename allocator_traits<_Alloc>::size_type size_type;
|
|
|
|
|
|
typedef std::basic_string<char_type> string_type;
|
|
//@}
|
|
|
|
public:
|
|
/**
|
|
* @name 28.10.1 Construction, Copying, and Destruction
|
|
*/
|
|
//@{
|
|
|
|
/**
|
|
* @brief Constructs a default %match_results container.
|
|
* @post size() returns 0 and str() returns an empty string.
|
|
*/
|
|
explicit
|
|
match_results(const _Alloc& __a = _Alloc())
|
|
: _Base_type(__a)
|
|
{ }
|
|
|
|
/**
|
|
* @brief Copy constructs a %match_results.
|
|
*/
|
|
match_results(const match_results& __rhs)
|
|
: _Base_type(__rhs)
|
|
{ }
|
|
|
|
/**
|
|
* @brief Move constructs a %match_results.
|
|
*/
|
|
match_results(match_results&& __rhs) noexcept
|
|
: _Base_type(std::move(__rhs))
|
|
{ }
|
|
|
|
/**
|
|
* @brief Assigns rhs to *this.
|
|
*/
|
|
match_results&
|
|
operator=(const match_results& __rhs)
|
|
{
|
|
match_results(__rhs).swap(*this);
|
|
return *this;
|
|
}
|
|
|
|
/**
|
|
* @brief Move-assigns rhs to *this.
|
|
*/
|
|
match_results&
|
|
operator=(match_results&& __rhs)
|
|
{
|
|
match_results(std::move(__rhs)).swap(*this);
|
|
return *this;
|
|
}
|
|
|
|
/**
|
|
* @brief Destroys a %match_results object.
|
|
*/
|
|
~match_results()
|
|
{ }
|
|
|
|
//@}
|
|
|
|
// 28.10.2, state:
|
|
/**
|
|
* @brief Indicates if the %match_results is ready.
|
|
* @retval true The object has a fully-established result state.
|
|
* @retval false The object is not ready.
|
|
*/
|
|
bool ready() const { return !_Base_type::empty(); }
|
|
|
|
/**
|
|
* @name 28.10.2 Size
|
|
*/
|
|
//@{
|
|
|
|
/**
|
|
* @brief Gets the number of matches and submatches.
|
|
*
|
|
* The number of matches for a given regular expression will be either 0
|
|
* if there was no match or mark_count() + 1 if a match was successful.
|
|
* Some matches may be empty.
|
|
*
|
|
* @returns the number of matches found.
|
|
*/
|
|
size_type
|
|
size() const
|
|
{
|
|
size_type __size = _Base_type::size();
|
|
return (__size && _Base_type::operator[](0).matched) ? __size - 2 : 0;
|
|
}
|
|
|
|
size_type
|
|
max_size() const
|
|
{ return _Base_type::max_size(); }
|
|
|
|
/**
|
|
* @brief Indicates if the %match_results contains no results.
|
|
* @retval true The %match_results object is empty.
|
|
* @retval false The %match_results object is not empty.
|
|
*/
|
|
bool
|
|
empty() const
|
|
{ return size() == 0; }
|
|
|
|
//@}
|
|
|
|
/**
|
|
* @name 10.3 Element Access
|
|
*/
|
|
//@{
|
|
|
|
/**
|
|
* @brief Gets the length of the indicated submatch.
|
|
* @param __sub indicates the submatch.
|
|
* @pre ready() == true
|
|
*
|
|
* This function returns the length of the indicated submatch, or the
|
|
* length of the entire match if @p __sub is zero (the default).
|
|
*/
|
|
difference_type
|
|
length(size_type __sub = 0) const
|
|
{ return (*this)[__sub].length(); }
|
|
|
|
/**
|
|
* @brief Gets the offset of the beginning of the indicated submatch.
|
|
* @param __sub indicates the submatch.
|
|
* @pre ready() == true
|
|
*
|
|
* This function returns the offset from the beginning of the target
|
|
* sequence to the beginning of the submatch, unless the value of @p __sub
|
|
* is zero (the default), in which case this function returns the offset
|
|
* from the beginning of the target sequence to the beginning of the
|
|
* match.
|
|
*
|
|
* Returns -1 if @p __sub is out of range.
|
|
*/
|
|
difference_type
|
|
position(size_type __sub = 0) const
|
|
{
|
|
return __sub < size() ? std::distance(this->prefix().first,
|
|
(*this)[__sub].first) : -1;
|
|
}
|
|
|
|
/**
|
|
* @brief Gets the match or submatch converted to a string type.
|
|
* @param __sub indicates the submatch.
|
|
* @pre ready() == true
|
|
*
|
|
* This function gets the submatch (or match, if @p __sub is
|
|
* zero) extracted from the target range and converted to the
|
|
* associated string type.
|
|
*/
|
|
string_type
|
|
str(size_type __sub = 0) const
|
|
{ return (*this)[__sub].str(); }
|
|
|
|
/**
|
|
* @brief Gets a %sub_match reference for the match or submatch.
|
|
* @param __sub indicates the submatch.
|
|
* @pre ready() == true
|
|
*
|
|
* This function gets a reference to the indicated submatch, or
|
|
* the entire match if @p __sub is zero.
|
|
*
|
|
* If @p __sub >= size() then this function returns a %sub_match with a
|
|
* special value indicating no submatch.
|
|
*/
|
|
const_reference
|
|
operator[](size_type __sub) const
|
|
{
|
|
_GLIBCXX_DEBUG_ASSERT( ready() );
|
|
return __sub < size()
|
|
? _Base_type::operator[](__sub)
|
|
: __unmatched_sub<_Bi_iter>();
|
|
}
|
|
|
|
/**
|
|
* @brief Gets a %sub_match representing the match prefix.
|
|
* @pre ready() == true
|
|
*
|
|
* This function gets a reference to a %sub_match object representing the
|
|
* part of the target range between the start of the target range and the
|
|
* start of the match.
|
|
*/
|
|
const_reference
|
|
prefix() const
|
|
{
|
|
_GLIBCXX_DEBUG_ASSERT( ready() );
|
|
return !empty()
|
|
? _Base_type::operator[](_Base_type::size() - 2)
|
|
: __unmatched_sub<_Bi_iter>();
|
|
}
|
|
|
|
/**
|
|
* @brief Gets a %sub_match representing the match suffix.
|
|
* @pre ready() == true
|
|
*
|
|
* This function gets a reference to a %sub_match object representing the
|
|
* part of the target range between the end of the match and the end of
|
|
* the target range.
|
|
*/
|
|
const_reference
|
|
suffix() const
|
|
{
|
|
_GLIBCXX_DEBUG_ASSERT( ready() );
|
|
return !empty()
|
|
? _Base_type::operator[](_Base_type::size() - 1)
|
|
: __unmatched_sub<_Bi_iter>();
|
|
}
|
|
|
|
/**
|
|
* @brief Gets an iterator to the start of the %sub_match collection.
|
|
*/
|
|
const_iterator
|
|
begin() const
|
|
{ return _Base_type::begin(); }
|
|
|
|
/**
|
|
* @brief Gets an iterator to the start of the %sub_match collection.
|
|
*/
|
|
const_iterator
|
|
cbegin() const
|
|
{ return _Base_type::cbegin(); }
|
|
|
|
/**
|
|
* @brief Gets an iterator to one-past-the-end of the collection.
|
|
*/
|
|
const_iterator
|
|
end() const
|
|
{ return !empty() ? _Base_type::end() - 2 : _Base_type::end(); }
|
|
|
|
/**
|
|
* @brief Gets an iterator to one-past-the-end of the collection.
|
|
*/
|
|
const_iterator
|
|
cend() const
|
|
{ return end(); }
|
|
|
|
//@}
|
|
|
|
/**
|
|
* @name 10.4 Formatting
|
|
*
|
|
* These functions perform formatted substitution of the matched
|
|
* character sequences into their target. The format specifiers and
|
|
* escape sequences accepted by these functions are determined by
|
|
* their @p flags parameter as documented above.
|
|
*/
|
|
//@{
|
|
|
|
/**
|
|
* @pre ready() == true
|
|
* @todo Implement this function.
|
|
*/
|
|
template<typename _Out_iter>
|
|
_Out_iter
|
|
format(_Out_iter __out, const char_type* __fmt_first,
|
|
const char_type* __fmt_last,
|
|
match_flag_type __flags = regex_constants::format_default) const
|
|
{ return __out; }
|
|
|
|
/**
|
|
* @pre ready() == true
|
|
*/
|
|
template<typename _Out_iter, typename _St, typename _Sa>
|
|
_Out_iter
|
|
format(_Out_iter __out, const basic_string<char_type, _St, _Sa>& __fmt,
|
|
match_flag_type __flags = regex_constants::format_default) const
|
|
{
|
|
return format(__out, __fmt.data(), __fmt.data() + __fmt.size(),
|
|
__flags);
|
|
}
|
|
|
|
/**
|
|
* @pre ready() == true
|
|
*/
|
|
template<typename _Out_iter, typename _St, typename _Sa>
|
|
basic_string<char_type, _St, _Sa>
|
|
format(const basic_string<char_type, _St, _Sa>& __fmt,
|
|
match_flag_type __flags = regex_constants::format_default) const
|
|
{
|
|
basic_string<char_type, _St, _Sa> __result;
|
|
format(std::back_inserter(__result), __fmt, __flags);
|
|
return __result;
|
|
}
|
|
|
|
/**
|
|
* @pre ready() == true
|
|
*/
|
|
string_type
|
|
format(const char_type* __fmt,
|
|
match_flag_type __flags = regex_constants::format_default) const
|
|
{
|
|
string_type __result;
|
|
format(std::back_inserter(__result),
|
|
__fmt + char_traits<char_type>::length(__fmt),
|
|
__flags);
|
|
return __result;
|
|
}
|
|
|
|
//@}
|
|
|
|
/**
|
|
* @name 10.5 Allocator
|
|
*/
|
|
//@{
|
|
|
|
/**
|
|
* @brief Gets a copy of the allocator.
|
|
*/
|
|
allocator_type
|
|
get_allocator() const
|
|
{ return _Base_type::get_allocator(); }
|
|
|
|
//@}
|
|
|
|
/**
|
|
* @name 10.6 Swap
|
|
*/
|
|
//@{
|
|
|
|
/**
|
|
* @brief Swaps the contents of two match_results.
|
|
*/
|
|
void
|
|
swap(match_results& __that)
|
|
{ _Base_type::swap(__that); }
|
|
//@}
|
|
|
|
private:
|
|
friend class __detail::_SpecializedResults<_Bi_iter, _Alloc>;
|
|
};
|
|
|
|
typedef match_results<const char*> cmatch;
|
|
typedef match_results<string::const_iterator> smatch;
|
|
#ifdef _GLIBCXX_USE_WCHAR_T
|
|
typedef match_results<const wchar_t*> wcmatch;
|
|
typedef match_results<wstring::const_iterator> wsmatch;
|
|
#endif
|
|
|
|
// match_results comparisons
|
|
/**
|
|
* @brief Compares two match_results for equality.
|
|
* @returns true if the two objects refer to the same match,
|
|
* false otherwise.
|
|
*/
|
|
template<typename _Bi_iter, typename _Alloc>
|
|
inline bool
|
|
operator==(const match_results<_Bi_iter, _Alloc>& __m1,
|
|
const match_results<_Bi_iter, _Alloc>& __m2)
|
|
{
|
|
if (__m1.ready() != __m2.ready())
|
|
return false;
|
|
if (!__m1.ready()) // both are not ready
|
|
return true;
|
|
if (__m1.empty() != __m2.empty())
|
|
return false;
|
|
if (__m1.empty()) // both are empty
|
|
return true;
|
|
return __m1.prefix() == __m2.prefix()
|
|
&& __m1.size() == __m2.size()
|
|
&& std::equal(__m1.begin(), __m1.end(), __m2.begin())
|
|
&& __m1.suffix() == __m2.suffix();
|
|
}
|
|
|
|
/**
|
|
* @brief Compares two match_results for inequality.
|
|
* @returns true if the two objects do not refer to the same match,
|
|
* false otherwise.
|
|
*/
|
|
template<typename _Bi_iter, class _Alloc>
|
|
inline bool
|
|
operator!=(const match_results<_Bi_iter, _Alloc>& __m1,
|
|
const match_results<_Bi_iter, _Alloc>& __m2)
|
|
{ return !(__m1 == __m2); }
|
|
|
|
// [7.10.6] match_results swap
|
|
/**
|
|
* @brief Swaps two match results.
|
|
* @param __lhs A match result.
|
|
* @param __rhs A match result.
|
|
*
|
|
* The contents of the two match_results objects are swapped.
|
|
*/
|
|
template<typename _Bi_iter, typename _Alloc>
|
|
inline void
|
|
swap(match_results<_Bi_iter, _Alloc>& __lhs,
|
|
match_results<_Bi_iter, _Alloc>& __rhs)
|
|
{ __lhs.swap(__rhs); }
|
|
|
|
// [7.11.2] Function template regex_match
|
|
/**
|
|
* @name Matching, Searching, and Replacing
|
|
*/
|
|
//@{
|
|
|
|
/**
|
|
* @brief Determines if there is a match between the regular expression @p e
|
|
* and all of the character sequence [first, last).
|
|
*
|
|
* @param __s Start of the character sequence to match.
|
|
* @param __e One-past-the-end of the character sequence to match.
|
|
* @param __m The match results.
|
|
* @param __re The regular expression.
|
|
* @param __flags Controls how the regular expression is matched.
|
|
*
|
|
* @retval true A match exists.
|
|
* @retval false Otherwise.
|
|
*
|
|
* @throws an exception of type regex_error.
|
|
*
|
|
* @todo Implement this function.
|
|
*/
|
|
template<typename _Bi_iter, typename _Alloc,
|
|
typename _Ch_type, typename _Rx_traits>
|
|
bool
|
|
regex_match(_Bi_iter __s,
|
|
_Bi_iter __e,
|
|
match_results<_Bi_iter, _Alloc>& __m,
|
|
const basic_regex<_Ch_type, _Rx_traits>& __re,
|
|
regex_constants::match_flag_type __flags
|
|
= regex_constants::match_default)
|
|
{
|
|
__detail::_AutomatonPtr __a = __re._M_get_automaton();
|
|
__detail::_Automaton::_SizeT __sz = __a->_M_sub_count();
|
|
__detail::_SpecializedCursor<_Bi_iter> __cs(__s, __e);
|
|
__detail::_SpecializedResults<_Bi_iter, _Alloc> __r(__sz, __cs, __m);
|
|
__detail::_Grep_matcher __matcher(__cs, __r, __a, __flags);
|
|
return __m[0].matched;
|
|
}
|
|
|
|
/**
|
|
* @brief Indicates if there is a match between the regular expression @p e
|
|
* and all of the character sequence [first, last).
|
|
*
|
|
* @param __first Beginning of the character sequence to match.
|
|
* @param __last One-past-the-end of the character sequence to match.
|
|
* @param __re The regular expression.
|
|
* @param __flags Controls how the regular expression is matched.
|
|
*
|
|
* @retval true A match exists.
|
|
* @retval false Otherwise.
|
|
*
|
|
* @throws an exception of type regex_error.
|
|
*/
|
|
template<typename _Bi_iter, typename _Ch_type, typename _Rx_traits>
|
|
bool
|
|
regex_match(_Bi_iter __first, _Bi_iter __last,
|
|
const basic_regex<_Ch_type, _Rx_traits>& __re,
|
|
regex_constants::match_flag_type __flags
|
|
= regex_constants::match_default)
|
|
{
|
|
match_results<_Bi_iter> __what;
|
|
return regex_match(__first, __last, __what, __re, __flags);
|
|
}
|
|
|
|
/**
|
|
* @brief Determines if there is a match between the regular expression @p e
|
|
* and a C-style null-terminated string.
|
|
*
|
|
* @param __s The C-style null-terminated string to match.
|
|
* @param __m The match results.
|
|
* @param __re The regular expression.
|
|
* @param __f Controls how the regular expression is matched.
|
|
*
|
|
* @retval true A match exists.
|
|
* @retval false Otherwise.
|
|
*
|
|
* @throws an exception of type regex_error.
|
|
*/
|
|
template<typename _Ch_type, typename _Alloc, typename _Rx_traits>
|
|
inline bool
|
|
regex_match(const _Ch_type* __s,
|
|
match_results<const _Ch_type*, _Alloc>& __m,
|
|
const basic_regex<_Ch_type, _Rx_traits>& __re,
|
|
regex_constants::match_flag_type __f
|
|
= regex_constants::match_default)
|
|
{ return regex_match(__s, __s + _Rx_traits::length(__s), __m, __re, __f); }
|
|
|
|
/**
|
|
* @brief Determines if there is a match between the regular expression @p e
|
|
* and a string.
|
|
*
|
|
* @param __s The string to match.
|
|
* @param __m The match results.
|
|
* @param __re The regular expression.
|
|
* @param __flags Controls how the regular expression is matched.
|
|
*
|
|
* @retval true A match exists.
|
|
* @retval false Otherwise.
|
|
*
|
|
* @throws an exception of type regex_error.
|
|
*/
|
|
template<typename _Ch_traits, typename _Ch_alloc,
|
|
typename _Alloc, typename _Ch_type, typename _Rx_traits>
|
|
inline bool
|
|
regex_match(const basic_string<_Ch_type, _Ch_traits, _Ch_alloc>& __s,
|
|
match_results<typename basic_string<_Ch_type,
|
|
_Ch_traits, _Ch_alloc>::const_iterator, _Alloc>& __m,
|
|
const basic_regex<_Ch_type, _Rx_traits>& __re,
|
|
regex_constants::match_flag_type __flags
|
|
= regex_constants::match_default)
|
|
{ return regex_match(__s.begin(), __s.end(), __m, __re, __flags); }
|
|
|
|
/**
|
|
* @brief Indicates if there is a match between the regular expression @p e
|
|
* and a C-style null-terminated string.
|
|
*
|
|
* @param __s The C-style null-terminated string to match.
|
|
* @param __re The regular expression.
|
|
* @param __f Controls how the regular expression is matched.
|
|
*
|
|
* @retval true A match exists.
|
|
* @retval false Otherwise.
|
|
*
|
|
* @throws an exception of type regex_error.
|
|
*/
|
|
template<typename _Ch_type, class _Rx_traits>
|
|
inline bool
|
|
regex_match(const _Ch_type* __s,
|
|
const basic_regex<_Ch_type, _Rx_traits>& __re,
|
|
regex_constants::match_flag_type __f
|
|
= regex_constants::match_default)
|
|
{ return regex_match(__s, __s + _Rx_traits::length(__s), __re, __f); }
|
|
|
|
/**
|
|
* @brief Indicates if there is a match between the regular expression @p e
|
|
* and a string.
|
|
*
|
|
* @param __s [IN] The string to match.
|
|
* @param __re [IN] The regular expression.
|
|
* @param __flags [IN] Controls how the regular expression is matched.
|
|
*
|
|
* @retval true A match exists.
|
|
* @retval false Otherwise.
|
|
*
|
|
* @throws an exception of type regex_error.
|
|
*/
|
|
template<typename _Ch_traits, typename _Str_allocator,
|
|
typename _Ch_type, typename _Rx_traits>
|
|
inline bool
|
|
regex_match(const basic_string<_Ch_type, _Ch_traits, _Str_allocator>& __s,
|
|
const basic_regex<_Ch_type, _Rx_traits>& __re,
|
|
regex_constants::match_flag_type __flags
|
|
= regex_constants::match_default)
|
|
{ return regex_match(__s.begin(), __s.end(), __re, __flags); }
|
|
|
|
// [7.11.3] Function template regex_search
|
|
/**
|
|
* Searches for a regular expression within a range.
|
|
* @param __first [IN] The start of the string to search.
|
|
* @param __last [IN] One-past-the-end of the string to search.
|
|
* @param __m [OUT] The match results.
|
|
* @param __re [IN] The regular expression to search for.
|
|
* @param __flags [IN] Search policy flags.
|
|
* @retval true A match was found within the string.
|
|
* @retval false No match was found within the string, the content of %m is
|
|
* undefined.
|
|
*
|
|
* @throws an exception of type regex_error.
|
|
*
|
|
* @todo Implement this function.
|
|
*/
|
|
template<typename _Bi_iter, typename _Alloc,
|
|
typename _Ch_type, typename _Rx_traits>
|
|
inline bool
|
|
regex_search(_Bi_iter __first, _Bi_iter __last,
|
|
match_results<_Bi_iter, _Alloc>& __m,
|
|
const basic_regex<_Ch_type, _Rx_traits>& __re,
|
|
regex_constants::match_flag_type __flags
|
|
= regex_constants::match_default)
|
|
{ return false; }
|
|
|
|
/**
|
|
* Searches for a regular expression within a range.
|
|
* @param __first [IN] The start of the string to search.
|
|
* @param __last [IN] One-past-the-end of the string to search.
|
|
* @param __re [IN] The regular expression to search for.
|
|
* @param __flags [IN] Search policy flags.
|
|
* @retval true A match was found within the string.
|
|
* @retval false No match was found within the string.
|
|
* @doctodo
|
|
*
|
|
* @throws an exception of type regex_error.
|
|
*/
|
|
template<typename _Bi_iter, typename _Ch_type, typename _Rx_traits>
|
|
inline bool
|
|
regex_search(_Bi_iter __first, _Bi_iter __last,
|
|
const basic_regex<_Ch_type, _Rx_traits>& __re,
|
|
regex_constants::match_flag_type __flags
|
|
= regex_constants::match_default)
|
|
{
|
|
match_results<_Bi_iter> __what;
|
|
return regex_search(__first, __last, __what, __re, __flags);
|
|
}
|
|
|
|
/**
|
|
* @brief Searches for a regular expression within a C-string.
|
|
* @param __s [IN] A C-string to search for the regex.
|
|
* @param __m [OUT] The set of regex matches.
|
|
* @param __e [IN] The regex to search for in @p s.
|
|
* @param __f [IN] The search flags.
|
|
* @retval true A match was found within the string.
|
|
* @retval false No match was found within the string, the content of %m is
|
|
* undefined.
|
|
* @doctodo
|
|
*
|
|
* @throws an exception of type regex_error.
|
|
*/
|
|
template<typename _Ch_type, class _Alloc, class _Rx_traits>
|
|
inline bool
|
|
regex_search(const _Ch_type* __s,
|
|
match_results<const _Ch_type*, _Alloc>& __m,
|
|
const basic_regex<_Ch_type, _Rx_traits>& __e,
|
|
regex_constants::match_flag_type __f
|
|
= regex_constants::match_default)
|
|
{ return regex_search(__s, __s + _Rx_traits::length(__s), __m, __e, __f); }
|
|
|
|
/**
|
|
* @brief Searches for a regular expression within a C-string.
|
|
* @param __s [IN] The C-string to search.
|
|
* @param __e [IN] The regular expression to search for.
|
|
* @param __f [IN] Search policy flags.
|
|
* @retval true A match was found within the string.
|
|
* @retval false No match was found within the string.
|
|
* @doctodo
|
|
*
|
|
* @throws an exception of type regex_error.
|
|
*/
|
|
template<typename _Ch_type, typename _Rx_traits>
|
|
inline bool
|
|
regex_search(const _Ch_type* __s,
|
|
const basic_regex<_Ch_type, _Rx_traits>& __e,
|
|
regex_constants::match_flag_type __f
|
|
= regex_constants::match_default)
|
|
{ return regex_search(__s, __s + _Rx_traits::length(__s), __e, __f); }
|
|
|
|
/**
|
|
* @brief Searches for a regular expression within a string.
|
|
* @param __s [IN] The string to search.
|
|
* @param __e [IN] The regular expression to search for.
|
|
* @param __flags [IN] Search policy flags.
|
|
* @retval true A match was found within the string.
|
|
* @retval false No match was found within the string.
|
|
* @doctodo
|
|
*
|
|
* @throws an exception of type regex_error.
|
|
*/
|
|
template<typename _Ch_traits, typename _String_allocator,
|
|
typename _Ch_type, typename _Rx_traits>
|
|
inline bool
|
|
regex_search(const basic_string<_Ch_type, _Ch_traits,
|
|
_String_allocator>& __s,
|
|
const basic_regex<_Ch_type, _Rx_traits>& __e,
|
|
regex_constants::match_flag_type __flags
|
|
= regex_constants::match_default)
|
|
{ return regex_search(__s.begin(), __s.end(), __e, __flags); }
|
|
|
|
/**
|
|
* @brief Searches for a regular expression within a string.
|
|
* @param __s [IN] A C++ string to search for the regex.
|
|
* @param __m [OUT] The set of regex matches.
|
|
* @param __e [IN] The regex to search for in @p s.
|
|
* @param __f [IN] The search flags.
|
|
* @retval true A match was found within the string.
|
|
* @retval false No match was found within the string, the content of %m is
|
|
* undefined.
|
|
*
|
|
* @throws an exception of type regex_error.
|
|
*/
|
|
template<typename _Ch_traits, typename _Ch_alloc,
|
|
typename _Alloc, typename _Ch_type,
|
|
typename _Rx_traits>
|
|
inline bool
|
|
regex_search(const basic_string<_Ch_type, _Ch_traits, _Ch_alloc>& __s,
|
|
match_results<typename basic_string<_Ch_type,
|
|
_Ch_traits, _Ch_alloc>::const_iterator, _Alloc>& __m,
|
|
const basic_regex<_Ch_type, _Rx_traits>& __e,
|
|
regex_constants::match_flag_type __f
|
|
= regex_constants::match_default)
|
|
{ return regex_search(__s.begin(), __s.end(), __m, __e, __f); }
|
|
|
|
// std [28.11.4] Function template regex_replace
|
|
/**
|
|
* @doctodo
|
|
* @param __out
|
|
* @param __first
|
|
* @param __last
|
|
* @param __e
|
|
* @param __fmt
|
|
* @param __flags
|
|
*
|
|
* @returns out
|
|
* @throws an exception of type regex_error.
|
|
*
|
|
* @todo Implement this function.
|
|
*/
|
|
template<typename _Out_iter, typename _Bi_iter,
|
|
typename _Rx_traits, typename _Ch_type>
|
|
inline _Out_iter
|
|
regex_replace(_Out_iter __out, _Bi_iter __first, _Bi_iter __last,
|
|
const basic_regex<_Ch_type, _Rx_traits>& __e,
|
|
const basic_string<_Ch_type>& __fmt,
|
|
regex_constants::match_flag_type __flags
|
|
= regex_constants::match_default)
|
|
{ return __out; }
|
|
|
|
/**
|
|
* @doctodo
|
|
* @param __s
|
|
* @param __e
|
|
* @param __fmt
|
|
* @param __flags
|
|
*
|
|
* @returns a copy of string @p s with replacements.
|
|
*
|
|
* @throws an exception of type regex_error.
|
|
*/
|
|
template<typename _Rx_traits, typename _Ch_type>
|
|
inline basic_string<_Ch_type>
|
|
regex_replace(const basic_string<_Ch_type>& __s,
|
|
const basic_regex<_Ch_type, _Rx_traits>& __e,
|
|
const basic_string<_Ch_type>& __fmt,
|
|
regex_constants::match_flag_type __flags
|
|
= regex_constants::match_default)
|
|
{
|
|
basic_string<_Ch_type> __result;
|
|
regex_replace(std::back_inserter(__result),
|
|
__s.begin(), __s.end(), __e, __fmt, __flags);
|
|
return __result;
|
|
}
|
|
|
|
//@}
|
|
|
|
// std [28.12] Class template regex_iterator
|
|
/**
|
|
* An iterator adaptor that will provide repeated calls of regex_search over
|
|
* a range until no more matches remain.
|
|
*/
|
|
template<typename _Bi_iter,
|
|
typename _Ch_type = typename iterator_traits<_Bi_iter>::value_type,
|
|
typename _Rx_traits = regex_traits<_Ch_type> >
|
|
class regex_iterator
|
|
{
|
|
public:
|
|
typedef basic_regex<_Ch_type, _Rx_traits> regex_type;
|
|
typedef match_results<_Bi_iter> value_type;
|
|
typedef std::ptrdiff_t difference_type;
|
|
typedef const value_type* pointer;
|
|
typedef const value_type& reference;
|
|
typedef std::forward_iterator_tag iterator_category;
|
|
|
|
/**
|
|
* @brief Provides a singular iterator, useful for indicating
|
|
* one-past-the-end of a range.
|
|
* @todo Implement this function.
|
|
* @doctodo
|
|
*/
|
|
regex_iterator();
|
|
|
|
/**
|
|
* Constructs a %regex_iterator...
|
|
* @param __a [IN] The start of a text range to search.
|
|
* @param __b [IN] One-past-the-end of the text range to search.
|
|
* @param __re [IN] The regular expression to match.
|
|
* @param __m [IN] Policy flags for match rules.
|
|
* @todo Implement this function.
|
|
* @doctodo
|
|
*/
|
|
regex_iterator(_Bi_iter __a, _Bi_iter __b, const regex_type& __re,
|
|
regex_constants::match_flag_type __m
|
|
= regex_constants::match_default);
|
|
|
|
/**
|
|
* Copy constructs a %regex_iterator.
|
|
* @todo Implement this function.
|
|
* @doctodo
|
|
*/
|
|
regex_iterator(const regex_iterator& __rhs);
|
|
|
|
/**
|
|
* @todo Implement this function.
|
|
* @doctodo
|
|
*/
|
|
regex_iterator&
|
|
operator=(const regex_iterator& __rhs);
|
|
|
|
/**
|
|
* @todo Implement this function.
|
|
* @doctodo
|
|
*/
|
|
bool
|
|
operator==(const regex_iterator& __rhs);
|
|
|
|
/**
|
|
* @todo Implement this function.
|
|
* @doctodo
|
|
*/
|
|
bool
|
|
operator!=(const regex_iterator& __rhs);
|
|
|
|
/**
|
|
* @todo Implement this function.
|
|
* @doctodo
|
|
*/
|
|
const value_type&
|
|
operator*();
|
|
|
|
/**
|
|
* @todo Implement this function.
|
|
* @doctodo
|
|
*/
|
|
const value_type*
|
|
operator->();
|
|
|
|
/**
|
|
* @todo Implement this function.
|
|
* @doctodo
|
|
*/
|
|
regex_iterator&
|
|
operator++();
|
|
|
|
/**
|
|
* @todo Implement this function.
|
|
* @doctodo
|
|
*/
|
|
regex_iterator
|
|
operator++(int);
|
|
|
|
private:
|
|
// these members are shown for exposition only:
|
|
_Bi_iter begin;
|
|
_Bi_iter end;
|
|
const regex_type* pregex;
|
|
regex_constants::match_flag_type flags;
|
|
match_results<_Bi_iter> match;
|
|
};
|
|
|
|
typedef regex_iterator<const char*> cregex_iterator;
|
|
typedef regex_iterator<string::const_iterator> sregex_iterator;
|
|
#ifdef _GLIBCXX_USE_WCHAR_T
|
|
typedef regex_iterator<const wchar_t*> wcregex_iterator;
|
|
typedef regex_iterator<wstring::const_iterator> wsregex_iterator;
|
|
#endif
|
|
|
|
// [7.12.2] Class template regex_token_iterator
|
|
/**
|
|
* Iterates over submatches in a range (or @a splits a text string).
|
|
*
|
|
* The purpose of this iterator is to enumerate all, or all specified,
|
|
* matches of a regular expression within a text range. The dereferenced
|
|
* value of an iterator of this class is a std::sub_match object.
|
|
*/
|
|
template<typename _Bi_iter,
|
|
typename _Ch_type = typename iterator_traits<_Bi_iter>::value_type,
|
|
typename _Rx_traits = regex_traits<_Ch_type> >
|
|
class regex_token_iterator
|
|
{
|
|
public:
|
|
typedef basic_regex<_Ch_type, _Rx_traits> regex_type;
|
|
typedef sub_match<_Bi_iter> value_type;
|
|
typedef std::ptrdiff_t difference_type;
|
|
typedef const value_type* pointer;
|
|
typedef const value_type& reference;
|
|
typedef std::forward_iterator_tag iterator_category;
|
|
|
|
public:
|
|
/**
|
|
* @brief Default constructs a %regex_token_iterator.
|
|
* @todo Implement this function.
|
|
*
|
|
* A default-constructed %regex_token_iterator is a singular iterator
|
|
* that will compare equal to the one-past-the-end value for any
|
|
* iterator of the same type.
|
|
*/
|
|
regex_token_iterator();
|
|
|
|
/**
|
|
* Constructs a %regex_token_iterator...
|
|
* @param __a [IN] The start of the text to search.
|
|
* @param __b [IN] One-past-the-end of the text to search.
|
|
* @param __re [IN] The regular expression to search for.
|
|
* @param __submatch [IN] Which submatch to return. There are some
|
|
* special values for this parameter:
|
|
* - -1 each enumerated subexpression does NOT
|
|
* match the regular expression (aka field
|
|
* splitting)
|
|
* - 0 the entire string matching the
|
|
* subexpression is returned for each match
|
|
* within the text.
|
|
* - >0 enumerates only the indicated
|
|
* subexpression from a match within the text.
|
|
* @param __m [IN] Policy flags for match rules.
|
|
*
|
|
* @todo Implement this function.
|
|
* @doctodo
|
|
*/
|
|
regex_token_iterator(_Bi_iter __a, _Bi_iter __b, const regex_type& __re,
|
|
int __submatch = 0,
|
|
regex_constants::match_flag_type __m
|
|
= regex_constants::match_default);
|
|
|
|
/**
|
|
* Constructs a %regex_token_iterator...
|
|
* @param __a [IN] The start of the text to search.
|
|
* @param __b [IN] One-past-the-end of the text to search.
|
|
* @param __re [IN] The regular expression to search for.
|
|
* @param __submatches [IN] A list of subexpressions to return for each
|
|
* regular expression match within the text.
|
|
* @param __m [IN] Policy flags for match rules.
|
|
*
|
|
* @todo Implement this function.
|
|
* @doctodo
|
|
*/
|
|
regex_token_iterator(_Bi_iter __a, _Bi_iter __b,
|
|
const regex_type& __re,
|
|
const std::vector<int>& __submatches,
|
|
regex_constants::match_flag_type __m
|
|
= regex_constants::match_default);
|
|
|
|
/**
|
|
* Constructs a %regex_token_iterator...
|
|
* @param __a [IN] The start of the text to search.
|
|
* @param __b [IN] One-past-the-end of the text to search.
|
|
* @param __re [IN] The regular expression to search for.
|
|
* @param __submatches [IN] A list of subexpressions to return for each
|
|
* regular expression match within the text.
|
|
* @param __m [IN] Policy flags for match rules.
|
|
|
|
* @todo Implement this function.
|
|
* @doctodo
|
|
*/
|
|
template<std::size_t _Nm>
|
|
regex_token_iterator(_Bi_iter __a, _Bi_iter __b,
|
|
const regex_type& __re,
|
|
const int (&__submatches)[_Nm],
|
|
regex_constants::match_flag_type __m
|
|
= regex_constants::match_default);
|
|
|
|
/**
|
|
* @brief Copy constructs a %regex_token_iterator.
|
|
* @param __rhs [IN] A %regex_token_iterator to copy.
|
|
* @todo Implement this function.
|
|
*/
|
|
regex_token_iterator(const regex_token_iterator& __rhs);
|
|
|
|
/**
|
|
* @brief Assigns a %regex_token_iterator to another.
|
|
* @param __rhs [IN] A %regex_token_iterator to copy.
|
|
* @todo Implement this function.
|
|
*/
|
|
regex_token_iterator&
|
|
operator=(const regex_token_iterator& __rhs);
|
|
|
|
/**
|
|
* @brief Compares a %regex_token_iterator to another for equality.
|
|
* @todo Implement this function.
|
|
*/
|
|
bool
|
|
operator==(const regex_token_iterator& __rhs);
|
|
|
|
/**
|
|
* @brief Compares a %regex_token_iterator to another for inequality.
|
|
* @todo Implement this function.
|
|
*/
|
|
bool
|
|
operator!=(const regex_token_iterator& __rhs);
|
|
|
|
/**
|
|
* @brief Dereferences a %regex_token_iterator.
|
|
* @todo Implement this function.
|
|
*/
|
|
const value_type&
|
|
operator*();
|
|
|
|
/**
|
|
* @brief Selects a %regex_token_iterator member.
|
|
* @todo Implement this function.
|
|
*/
|
|
const value_type*
|
|
operator->();
|
|
|
|
/**
|
|
* @brief Increments a %regex_token_iterator.
|
|
* @todo Implement this function.
|
|
*/
|
|
regex_token_iterator&
|
|
operator++();
|
|
|
|
/**
|
|
* @brief Postincrements a %regex_token_iterator.
|
|
* @todo Implement this function.
|
|
*/
|
|
regex_token_iterator
|
|
operator++(int);
|
|
|
|
private: // data members for exposition only:
|
|
typedef regex_iterator<_Bi_iter, _Ch_type, _Rx_traits> position_iterator;
|
|
|
|
position_iterator __position;
|
|
const value_type* __result;
|
|
value_type __suffix;
|
|
std::size_t __n;
|
|
std::vector<int> __subs;
|
|
};
|
|
|
|
/** @brief Token iterator for C-style NULL-terminated strings. */
|
|
typedef regex_token_iterator<const char*> cregex_token_iterator;
|
|
|
|
/** @brief Token iterator for standard strings. */
|
|
typedef regex_token_iterator<string::const_iterator> sregex_token_iterator;
|
|
|
|
#ifdef _GLIBCXX_USE_WCHAR_T
|
|
/** @brief Token iterator for C-style NULL-terminated wide strings. */
|
|
typedef regex_token_iterator<const wchar_t*> wcregex_token_iterator;
|
|
|
|
/** @brief Token iterator for standard wide-character strings. */
|
|
typedef regex_token_iterator<wstring::const_iterator> wsregex_token_iterator;
|
|
#endif
|
|
|
|
//@} // group regex
|
|
_GLIBCXX_END_NAMESPACE_VERSION
|
|
} // namespace
|
|
|