1097 lines
34 KiB
C++
1097 lines
34 KiB
C++
/*
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*
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* Copyright (c) 2004 John Maddock
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* Copyright 2011 Garmin Ltd. or its subsidiaries
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*
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* Use, modification and distribution are subject to the
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* Boost Software License, Version 1.0. (See accompanying file
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* LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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*
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*/
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/*
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* LOCATION: see http://www.boost.org for most recent version.
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* FILE cpp_regex_traits.hpp
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* VERSION see <boost/version.hpp>
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* DESCRIPTION: Declares regular expression traits class cpp_regex_traits.
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*/
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#ifndef BOOST_CPP_REGEX_TRAITS_HPP_INCLUDED
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#define BOOST_CPP_REGEX_TRAITS_HPP_INCLUDED
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#include <boost/config.hpp>
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#ifndef BOOST_NO_STD_LOCALE
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#ifndef BOOST_RE_PAT_EXCEPT_HPP
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#include <boost/regex/pattern_except.hpp>
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#endif
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#ifndef BOOST_REGEX_TRAITS_DEFAULTS_HPP_INCLUDED
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#include <boost/regex/v4/regex_traits_defaults.hpp>
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#endif
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#ifdef BOOST_HAS_THREADS
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#include <boost/regex/pending/static_mutex.hpp>
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#endif
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#ifndef BOOST_REGEX_PRIMARY_TRANSFORM
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#include <boost/regex/v4/primary_transform.hpp>
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#endif
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#ifndef BOOST_REGEX_OBJECT_CACHE_HPP
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#include <boost/regex/pending/object_cache.hpp>
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#endif
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#include <istream>
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#include <ios>
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#include <climits>
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#ifdef BOOST_MSVC
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#pragma warning(push)
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#pragma warning(disable: 4103)
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#endif
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#ifdef BOOST_HAS_ABI_HEADERS
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# include BOOST_ABI_PREFIX
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#endif
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#ifdef BOOST_MSVC
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#pragma warning(pop)
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#endif
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#ifdef BOOST_MSVC
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#pragma warning(push)
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#pragma warning(disable:4786 4251)
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#endif
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namespace boost{
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//
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// forward declaration is needed by some compilers:
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//
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template <class charT>
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class cpp_regex_traits;
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namespace re_detail{
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//
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// class parser_buf:
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// acts as a stream buffer which wraps around a pair of pointers:
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//
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template <class charT,
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class traits = ::std::char_traits<charT> >
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class parser_buf : public ::std::basic_streambuf<charT, traits>
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{
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typedef ::std::basic_streambuf<charT, traits> base_type;
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typedef typename base_type::int_type int_type;
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typedef typename base_type::char_type char_type;
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typedef typename base_type::pos_type pos_type;
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typedef ::std::streamsize streamsize;
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typedef typename base_type::off_type off_type;
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public:
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parser_buf() : base_type() { setbuf(0, 0); }
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const charT* getnext() { return this->gptr(); }
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protected:
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std::basic_streambuf<charT, traits>* setbuf(char_type* s, streamsize n);
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typename parser_buf<charT, traits>::pos_type seekpos(pos_type sp, ::std::ios_base::openmode which);
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typename parser_buf<charT, traits>::pos_type seekoff(off_type off, ::std::ios_base::seekdir way, ::std::ios_base::openmode which);
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private:
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parser_buf& operator=(const parser_buf&);
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parser_buf(const parser_buf&);
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};
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template<class charT, class traits>
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std::basic_streambuf<charT, traits>*
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parser_buf<charT, traits>::setbuf(char_type* s, streamsize n)
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{
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this->setg(s, s, s + n);
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return this;
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}
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template<class charT, class traits>
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typename parser_buf<charT, traits>::pos_type
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parser_buf<charT, traits>::seekoff(off_type off, ::std::ios_base::seekdir way, ::std::ios_base::openmode which)
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{
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if(which & ::std::ios_base::out)
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return pos_type(off_type(-1));
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std::ptrdiff_t size = this->egptr() - this->eback();
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std::ptrdiff_t pos = this->gptr() - this->eback();
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charT* g = this->eback();
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switch(way)
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{
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case ::std::ios_base::beg:
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if((off < 0) || (off > size))
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return pos_type(off_type(-1));
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else
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this->setg(g, g + off, g + size);
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break;
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case ::std::ios_base::end:
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if((off < 0) || (off > size))
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return pos_type(off_type(-1));
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else
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this->setg(g, g + size - off, g + size);
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break;
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case ::std::ios_base::cur:
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{
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std::ptrdiff_t newpos = static_cast<std::ptrdiff_t>(pos + off);
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if((newpos < 0) || (newpos > size))
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return pos_type(off_type(-1));
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else
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this->setg(g, g + newpos, g + size);
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break;
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}
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default: ;
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}
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#ifdef BOOST_MSVC
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#pragma warning(push)
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#pragma warning(disable:4244)
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#endif
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return static_cast<pos_type>(this->gptr() - this->eback());
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#ifdef BOOST_MSVC
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#pragma warning(pop)
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#endif
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}
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template<class charT, class traits>
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typename parser_buf<charT, traits>::pos_type
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parser_buf<charT, traits>::seekpos(pos_type sp, ::std::ios_base::openmode which)
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{
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if(which & ::std::ios_base::out)
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return pos_type(off_type(-1));
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off_type size = static_cast<off_type>(this->egptr() - this->eback());
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charT* g = this->eback();
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if(off_type(sp) <= size)
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{
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this->setg(g, g + off_type(sp), g + size);
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}
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return pos_type(off_type(-1));
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}
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//
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// class cpp_regex_traits_base:
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// acts as a container for locale and the facets we are using.
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//
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template <class charT>
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struct cpp_regex_traits_base
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{
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cpp_regex_traits_base(const std::locale& l)
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{ imbue(l); }
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std::locale imbue(const std::locale& l);
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std::locale m_locale;
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std::ctype<charT> const* m_pctype;
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#ifndef BOOST_NO_STD_MESSAGES
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std::messages<charT> const* m_pmessages;
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#endif
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std::collate<charT> const* m_pcollate;
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bool operator<(const cpp_regex_traits_base& b)const
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{
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if(m_pctype == b.m_pctype)
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{
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#ifndef BOOST_NO_STD_MESSAGES
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if(m_pmessages == b.m_pmessages)
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{
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return m_pcollate < b.m_pcollate;
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}
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return m_pmessages < b.m_pmessages;
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#else
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return m_pcollate < b.m_pcollate;
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#endif
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}
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return m_pctype < b.m_pctype;
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}
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bool operator==(const cpp_regex_traits_base& b)const
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{
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return (m_pctype == b.m_pctype)
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#ifndef BOOST_NO_STD_MESSAGES
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&& (m_pmessages == b.m_pmessages)
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#endif
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&& (m_pcollate == b.m_pcollate);
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}
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};
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template <class charT>
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std::locale cpp_regex_traits_base<charT>::imbue(const std::locale& l)
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{
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std::locale result(m_locale);
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m_locale = l;
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m_pctype = &BOOST_USE_FACET(std::ctype<charT>, l);
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#ifndef BOOST_NO_STD_MESSAGES
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m_pmessages = BOOST_HAS_FACET(std::messages<charT>, l) ? &BOOST_USE_FACET(std::messages<charT>, l) : 0;
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#endif
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m_pcollate = &BOOST_USE_FACET(std::collate<charT>, l);
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return result;
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}
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//
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// class cpp_regex_traits_char_layer:
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// implements methods that require specialisation for narrow characters:
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//
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template <class charT>
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class cpp_regex_traits_char_layer : public cpp_regex_traits_base<charT>
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{
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typedef std::basic_string<charT> string_type;
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typedef std::map<charT, regex_constants::syntax_type> map_type;
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typedef typename map_type::const_iterator map_iterator_type;
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public:
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cpp_regex_traits_char_layer(const std::locale& l)
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: cpp_regex_traits_base<charT>(l)
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{
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init();
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}
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cpp_regex_traits_char_layer(const cpp_regex_traits_base<charT>& b)
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: cpp_regex_traits_base<charT>(b)
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{
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init();
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}
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void init();
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regex_constants::syntax_type syntax_type(charT c)const
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{
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map_iterator_type i = m_char_map.find(c);
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return ((i == m_char_map.end()) ? 0 : i->second);
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}
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regex_constants::escape_syntax_type escape_syntax_type(charT c) const
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{
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map_iterator_type i = m_char_map.find(c);
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if(i == m_char_map.end())
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{
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if(this->m_pctype->is(std::ctype_base::lower, c)) return regex_constants::escape_type_class;
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if(this->m_pctype->is(std::ctype_base::upper, c)) return regex_constants::escape_type_not_class;
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return 0;
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}
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return i->second;
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}
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private:
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string_type get_default_message(regex_constants::syntax_type);
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// TODO: use a hash table when available!
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map_type m_char_map;
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};
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template <class charT>
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void cpp_regex_traits_char_layer<charT>::init()
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{
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// we need to start by initialising our syntax map so we know which
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// character is used for which purpose:
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#ifndef BOOST_NO_STD_MESSAGES
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#ifndef __IBMCPP__
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typename std::messages<charT>::catalog cat = static_cast<std::messages<char>::catalog>(-1);
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#else
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typename std::messages<charT>::catalog cat = reinterpret_cast<std::messages<char>::catalog>(-1);
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#endif
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std::string cat_name(cpp_regex_traits<charT>::get_catalog_name());
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if(cat_name.size() && (this->m_pmessages != 0))
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{
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cat = this->m_pmessages->open(
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cat_name,
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this->m_locale);
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if((int)cat < 0)
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{
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std::string m("Unable to open message catalog: ");
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std::runtime_error err(m + cat_name);
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boost::re_detail::raise_runtime_error(err);
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}
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}
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//
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// if we have a valid catalog then load our messages:
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//
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if((int)cat >= 0)
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{
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#ifndef BOOST_NO_EXCEPTIONS
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try{
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#endif
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for(regex_constants::syntax_type i = 1; i < regex_constants::syntax_max; ++i)
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{
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string_type mss = this->m_pmessages->get(cat, 0, i, get_default_message(i));
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for(typename string_type::size_type j = 0; j < mss.size(); ++j)
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{
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m_char_map[mss[j]] = i;
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}
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}
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this->m_pmessages->close(cat);
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#ifndef BOOST_NO_EXCEPTIONS
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}
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catch(...)
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{
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if(this->m_pmessages)
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this->m_pmessages->close(cat);
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throw;
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}
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#endif
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}
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else
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{
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#endif
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for(regex_constants::syntax_type i = 1; i < regex_constants::syntax_max; ++i)
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{
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const char* ptr = get_default_syntax(i);
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while(ptr && *ptr)
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{
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m_char_map[this->m_pctype->widen(*ptr)] = i;
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++ptr;
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}
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}
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#ifndef BOOST_NO_STD_MESSAGES
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}
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#endif
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}
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template <class charT>
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typename cpp_regex_traits_char_layer<charT>::string_type
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cpp_regex_traits_char_layer<charT>::get_default_message(regex_constants::syntax_type i)
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{
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const char* ptr = get_default_syntax(i);
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string_type result;
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while(ptr && *ptr)
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{
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result.append(1, this->m_pctype->widen(*ptr));
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++ptr;
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}
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return result;
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}
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//
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// specialised version for narrow characters:
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//
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template <>
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class BOOST_REGEX_DECL cpp_regex_traits_char_layer<char> : public cpp_regex_traits_base<char>
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{
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typedef std::string string_type;
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public:
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cpp_regex_traits_char_layer(const std::locale& l)
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: cpp_regex_traits_base<char>(l)
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{
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init();
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}
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cpp_regex_traits_char_layer(const cpp_regex_traits_base<char>& l)
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: cpp_regex_traits_base<char>(l)
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{
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init();
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}
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regex_constants::syntax_type syntax_type(char c)const
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{
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return m_char_map[static_cast<unsigned char>(c)];
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}
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regex_constants::escape_syntax_type escape_syntax_type(char c) const
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{
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return m_char_map[static_cast<unsigned char>(c)];
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}
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private:
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regex_constants::syntax_type m_char_map[1u << CHAR_BIT];
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void init();
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};
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#ifdef BOOST_REGEX_BUGGY_CTYPE_FACET
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enum
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{
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char_class_space=1<<0,
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char_class_print=1<<1,
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char_class_cntrl=1<<2,
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char_class_upper=1<<3,
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char_class_lower=1<<4,
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char_class_alpha=1<<5,
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char_class_digit=1<<6,
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char_class_punct=1<<7,
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char_class_xdigit=1<<8,
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char_class_alnum=char_class_alpha|char_class_digit,
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char_class_graph=char_class_alnum|char_class_punct,
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char_class_blank=1<<9,
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char_class_word=1<<10,
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char_class_unicode=1<<11,
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char_class_horizontal_space=1<<12,
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char_class_vertical_space=1<<13
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};
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#endif
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//
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// class cpp_regex_traits_implementation:
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// provides pimpl implementation for cpp_regex_traits.
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//
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template <class charT>
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class cpp_regex_traits_implementation : public cpp_regex_traits_char_layer<charT>
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{
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public:
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typedef typename cpp_regex_traits<charT>::char_class_type char_class_type;
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typedef typename std::ctype<charT>::mask native_mask_type;
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#ifndef BOOST_REGEX_BUGGY_CTYPE_FACET
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BOOST_STATIC_CONSTANT(char_class_type, mask_blank = 1u << 24);
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BOOST_STATIC_CONSTANT(char_class_type, mask_word = 1u << 25);
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BOOST_STATIC_CONSTANT(char_class_type, mask_unicode = 1u << 26);
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BOOST_STATIC_CONSTANT(char_class_type, mask_horizontal = 1u << 27);
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BOOST_STATIC_CONSTANT(char_class_type, mask_vertical = 1u << 28);
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#endif
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typedef std::basic_string<charT> string_type;
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typedef charT char_type;
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//cpp_regex_traits_implementation();
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cpp_regex_traits_implementation(const std::locale& l)
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: cpp_regex_traits_char_layer<charT>(l)
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{
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init();
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}
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cpp_regex_traits_implementation(const cpp_regex_traits_base<charT>& l)
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: cpp_regex_traits_char_layer<charT>(l)
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{
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init();
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}
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std::string error_string(regex_constants::error_type n) const
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{
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if(!m_error_strings.empty())
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{
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std::map<int, std::string>::const_iterator p = m_error_strings.find(n);
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return (p == m_error_strings.end()) ? std::string(get_default_error_string(n)) : p->second;
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}
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return get_default_error_string(n);
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}
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char_class_type lookup_classname(const charT* p1, const charT* p2) const
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{
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char_class_type result = lookup_classname_imp(p1, p2);
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if(result == 0)
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{
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string_type temp(p1, p2);
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this->m_pctype->tolower(&*temp.begin(), &*temp.begin() + temp.size());
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result = lookup_classname_imp(&*temp.begin(), &*temp.begin() + temp.size());
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}
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return result;
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}
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string_type lookup_collatename(const charT* p1, const charT* p2) const;
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string_type transform_primary(const charT* p1, const charT* p2) const;
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string_type transform(const charT* p1, const charT* p2) const;
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private:
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std::map<int, std::string> m_error_strings; // error messages indexed by numberic ID
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std::map<string_type, char_class_type> m_custom_class_names; // character class names
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std::map<string_type, string_type> m_custom_collate_names; // collating element names
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unsigned m_collate_type; // the form of the collation string
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charT m_collate_delim; // the collation group delimiter
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//
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// helpers:
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//
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char_class_type lookup_classname_imp(const charT* p1, const charT* p2) const;
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void init();
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#ifdef BOOST_REGEX_BUGGY_CTYPE_FACET
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public:
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bool isctype(charT c, char_class_type m)const;
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#endif
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};
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#ifndef BOOST_REGEX_BUGGY_CTYPE_FACET
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#if !defined(BOOST_NO_INCLASS_MEMBER_INITIALIZATION)
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template <class charT>
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typename cpp_regex_traits_implementation<charT>::char_class_type const cpp_regex_traits_implementation<charT>::mask_blank;
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template <class charT>
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typename cpp_regex_traits_implementation<charT>::char_class_type const cpp_regex_traits_implementation<charT>::mask_word;
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template <class charT>
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typename cpp_regex_traits_implementation<charT>::char_class_type const cpp_regex_traits_implementation<charT>::mask_unicode;
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template <class charT>
|
|
typename cpp_regex_traits_implementation<charT>::char_class_type const cpp_regex_traits_implementation<charT>::mask_vertical;
|
|
template <class charT>
|
|
typename cpp_regex_traits_implementation<charT>::char_class_type const cpp_regex_traits_implementation<charT>::mask_horizontal;
|
|
|
|
#endif
|
|
#endif
|
|
|
|
template <class charT>
|
|
typename cpp_regex_traits_implementation<charT>::string_type
|
|
cpp_regex_traits_implementation<charT>::transform_primary(const charT* p1, const charT* p2) const
|
|
{
|
|
//
|
|
// PRECONDITIONS:
|
|
//
|
|
// A bug in gcc 3.2 (and maybe other versions as well) treats
|
|
// p1 as a null terminated string, for efficiency reasons
|
|
// we work around this elsewhere, but just assert here that
|
|
// we adhere to gcc's (buggy) preconditions...
|
|
//
|
|
BOOST_ASSERT(*p2 == 0);
|
|
|
|
string_type result;
|
|
//
|
|
// swallowing all exceptions here is a bad idea
|
|
// however at least one std lib will always throw
|
|
// std::bad_alloc for certain arguments...
|
|
//
|
|
#ifndef BOOST_NO_EXCEPTIONS
|
|
try{
|
|
#endif
|
|
//
|
|
// What we do here depends upon the format of the sort key returned by
|
|
// sort key returned by this->transform:
|
|
//
|
|
switch(m_collate_type)
|
|
{
|
|
case sort_C:
|
|
case sort_unknown:
|
|
// the best we can do is translate to lower case, then get a regular sort key:
|
|
{
|
|
result.assign(p1, p2);
|
|
this->m_pctype->tolower(&*result.begin(), &*result.begin() + result.size());
|
|
result = this->m_pcollate->transform(&*result.begin(), &*result.begin() + result.size());
|
|
break;
|
|
}
|
|
case sort_fixed:
|
|
{
|
|
// get a regular sort key, and then truncate it:
|
|
result.assign(this->m_pcollate->transform(p1, p2));
|
|
result.erase(this->m_collate_delim);
|
|
break;
|
|
}
|
|
case sort_delim:
|
|
// get a regular sort key, and then truncate everything after the delim:
|
|
result.assign(this->m_pcollate->transform(p1, p2));
|
|
std::size_t i;
|
|
for(i = 0; i < result.size(); ++i)
|
|
{
|
|
if(result[i] == m_collate_delim)
|
|
break;
|
|
}
|
|
result.erase(i);
|
|
break;
|
|
}
|
|
#ifndef BOOST_NO_EXCEPTIONS
|
|
}catch(...){}
|
|
#endif
|
|
while(result.size() && (charT(0) == *result.rbegin()))
|
|
result.erase(result.size() - 1);
|
|
if(result.empty())
|
|
{
|
|
// character is ignorable at the primary level:
|
|
result = string_type(1, charT(0));
|
|
}
|
|
return result;
|
|
}
|
|
|
|
template <class charT>
|
|
typename cpp_regex_traits_implementation<charT>::string_type
|
|
cpp_regex_traits_implementation<charT>::transform(const charT* p1, const charT* p2) const
|
|
{
|
|
//
|
|
// PRECONDITIONS:
|
|
//
|
|
// A bug in gcc 3.2 (and maybe other versions as well) treats
|
|
// p1 as a null terminated string, for efficiency reasons
|
|
// we work around this elsewhere, but just assert here that
|
|
// we adhere to gcc's (buggy) preconditions...
|
|
//
|
|
BOOST_ASSERT(*p2 == 0);
|
|
//
|
|
// swallowing all exceptions here is a bad idea
|
|
// however at least one std lib will always throw
|
|
// std::bad_alloc for certain arguments...
|
|
//
|
|
string_type result;
|
|
#ifndef BOOST_NO_EXCEPTIONS
|
|
try{
|
|
#endif
|
|
result = this->m_pcollate->transform(p1, p2);
|
|
//
|
|
// Borland's STLPort version returns a NULL-terminated
|
|
// string that has garbage at the end - each call to
|
|
// std::collate<wchar_t>::transform returns a different string!
|
|
// So as a workaround, we'll truncate the string at the first NULL
|
|
// which _seems_ to work....
|
|
#if BOOST_WORKAROUND(__BORLANDC__, < 0x580)
|
|
result.erase(result.find(charT(0)));
|
|
#else
|
|
//
|
|
// some implementations (Dinkumware) append unnecessary trailing \0's:
|
|
while(result.size() && (charT(0) == *result.rbegin()))
|
|
result.erase(result.size() - 1);
|
|
#endif
|
|
BOOST_ASSERT(std::find(result.begin(), result.end(), charT(0)) == result.end());
|
|
#ifndef BOOST_NO_EXCEPTIONS
|
|
}
|
|
catch(...)
|
|
{
|
|
}
|
|
#endif
|
|
return result;
|
|
}
|
|
|
|
|
|
template <class charT>
|
|
typename cpp_regex_traits_implementation<charT>::string_type
|
|
cpp_regex_traits_implementation<charT>::lookup_collatename(const charT* p1, const charT* p2) const
|
|
{
|
|
typedef typename std::map<string_type, string_type>::const_iterator iter_type;
|
|
if(m_custom_collate_names.size())
|
|
{
|
|
iter_type pos = m_custom_collate_names.find(string_type(p1, p2));
|
|
if(pos != m_custom_collate_names.end())
|
|
return pos->second;
|
|
}
|
|
#if !defined(BOOST_NO_TEMPLATED_ITERATOR_CONSTRUCTORS)\
|
|
&& !BOOST_WORKAROUND(BOOST_MSVC, < 1300)\
|
|
&& !BOOST_WORKAROUND(__BORLANDC__, <= 0x0551)
|
|
std::string name(p1, p2);
|
|
#else
|
|
std::string name;
|
|
const charT* p0 = p1;
|
|
while(p0 != p2)
|
|
name.append(1, char(*p0++));
|
|
#endif
|
|
name = lookup_default_collate_name(name);
|
|
#if !defined(BOOST_NO_TEMPLATED_ITERATOR_CONSTRUCTORS)\
|
|
&& !BOOST_WORKAROUND(BOOST_MSVC, < 1300)\
|
|
&& !BOOST_WORKAROUND(__BORLANDC__, <= 0x0551)
|
|
if(name.size())
|
|
return string_type(name.begin(), name.end());
|
|
#else
|
|
if(name.size())
|
|
{
|
|
string_type result;
|
|
typedef std::string::const_iterator iter;
|
|
iter b = name.begin();
|
|
iter e = name.end();
|
|
while(b != e)
|
|
result.append(1, charT(*b++));
|
|
return result;
|
|
}
|
|
#endif
|
|
if(p2 - p1 == 1)
|
|
return string_type(1, *p1);
|
|
return string_type();
|
|
}
|
|
|
|
template <class charT>
|
|
void cpp_regex_traits_implementation<charT>::init()
|
|
{
|
|
#ifndef BOOST_NO_STD_MESSAGES
|
|
#ifndef __IBMCPP__
|
|
typename std::messages<charT>::catalog cat = static_cast<std::messages<char>::catalog>(-1);
|
|
#else
|
|
typename std::messages<charT>::catalog cat = reinterpret_cast<std::messages<char>::catalog>(-1);
|
|
#endif
|
|
std::string cat_name(cpp_regex_traits<charT>::get_catalog_name());
|
|
if(cat_name.size() && (this->m_pmessages != 0))
|
|
{
|
|
cat = this->m_pmessages->open(
|
|
cat_name,
|
|
this->m_locale);
|
|
if((int)cat < 0)
|
|
{
|
|
std::string m("Unable to open message catalog: ");
|
|
std::runtime_error err(m + cat_name);
|
|
boost::re_detail::raise_runtime_error(err);
|
|
}
|
|
}
|
|
//
|
|
// if we have a valid catalog then load our messages:
|
|
//
|
|
if((int)cat >= 0)
|
|
{
|
|
//
|
|
// Error messages:
|
|
//
|
|
for(boost::regex_constants::error_type i = static_cast<boost::regex_constants::error_type>(0);
|
|
i <= boost::regex_constants::error_unknown;
|
|
i = static_cast<boost::regex_constants::error_type>(i + 1))
|
|
{
|
|
const char* p = get_default_error_string(i);
|
|
string_type default_message;
|
|
while(*p)
|
|
{
|
|
default_message.append(1, this->m_pctype->widen(*p));
|
|
++p;
|
|
}
|
|
string_type s = this->m_pmessages->get(cat, 0, i+200, default_message);
|
|
std::string result;
|
|
for(std::string::size_type j = 0; j < s.size(); ++j)
|
|
{
|
|
result.append(1, this->m_pctype->narrow(s[j], 0));
|
|
}
|
|
m_error_strings[i] = result;
|
|
}
|
|
//
|
|
// Custom class names:
|
|
//
|
|
#ifndef BOOST_REGEX_BUGGY_CTYPE_FACET
|
|
static const char_class_type masks[16] =
|
|
{
|
|
std::ctype<charT>::alnum,
|
|
std::ctype<charT>::alpha,
|
|
std::ctype<charT>::cntrl,
|
|
std::ctype<charT>::digit,
|
|
std::ctype<charT>::graph,
|
|
cpp_regex_traits_implementation<charT>::mask_horizontal,
|
|
std::ctype<charT>::lower,
|
|
std::ctype<charT>::print,
|
|
std::ctype<charT>::punct,
|
|
std::ctype<charT>::space,
|
|
std::ctype<charT>::upper,
|
|
cpp_regex_traits_implementation<charT>::mask_vertical,
|
|
std::ctype<charT>::xdigit,
|
|
cpp_regex_traits_implementation<charT>::mask_blank,
|
|
cpp_regex_traits_implementation<charT>::mask_word,
|
|
cpp_regex_traits_implementation<charT>::mask_unicode,
|
|
};
|
|
#else
|
|
static const char_class_type masks[16] =
|
|
{
|
|
::boost::re_detail::char_class_alnum,
|
|
::boost::re_detail::char_class_alpha,
|
|
::boost::re_detail::char_class_cntrl,
|
|
::boost::re_detail::char_class_digit,
|
|
::boost::re_detail::char_class_graph,
|
|
::boost::re_detail::char_class_horizontal_space,
|
|
::boost::re_detail::char_class_lower,
|
|
::boost::re_detail::char_class_print,
|
|
::boost::re_detail::char_class_punct,
|
|
::boost::re_detail::char_class_space,
|
|
::boost::re_detail::char_class_upper,
|
|
::boost::re_detail::char_class_vertical_space,
|
|
::boost::re_detail::char_class_xdigit,
|
|
::boost::re_detail::char_class_blank,
|
|
::boost::re_detail::char_class_word,
|
|
::boost::re_detail::char_class_unicode,
|
|
};
|
|
#endif
|
|
static const string_type null_string;
|
|
for(unsigned int j = 0; j <= 13; ++j)
|
|
{
|
|
string_type s(this->m_pmessages->get(cat, 0, j+300, null_string));
|
|
if(s.size())
|
|
this->m_custom_class_names[s] = masks[j];
|
|
}
|
|
}
|
|
#endif
|
|
//
|
|
// get the collation format used by m_pcollate:
|
|
//
|
|
m_collate_type = re_detail::find_sort_syntax(this, &m_collate_delim);
|
|
}
|
|
|
|
template <class charT>
|
|
typename cpp_regex_traits_implementation<charT>::char_class_type
|
|
cpp_regex_traits_implementation<charT>::lookup_classname_imp(const charT* p1, const charT* p2) const
|
|
{
|
|
#ifndef BOOST_REGEX_BUGGY_CTYPE_FACET
|
|
static const char_class_type masks[22] =
|
|
{
|
|
0,
|
|
std::ctype<char>::alnum,
|
|
std::ctype<char>::alpha,
|
|
cpp_regex_traits_implementation<charT>::mask_blank,
|
|
std::ctype<char>::cntrl,
|
|
std::ctype<char>::digit,
|
|
std::ctype<char>::digit,
|
|
std::ctype<char>::graph,
|
|
cpp_regex_traits_implementation<charT>::mask_horizontal,
|
|
std::ctype<char>::lower,
|
|
std::ctype<char>::lower,
|
|
std::ctype<char>::print,
|
|
std::ctype<char>::punct,
|
|
std::ctype<char>::space,
|
|
std::ctype<char>::space,
|
|
std::ctype<char>::upper,
|
|
cpp_regex_traits_implementation<charT>::mask_unicode,
|
|
std::ctype<char>::upper,
|
|
cpp_regex_traits_implementation<charT>::mask_vertical,
|
|
std::ctype<char>::alnum | cpp_regex_traits_implementation<charT>::mask_word,
|
|
std::ctype<char>::alnum | cpp_regex_traits_implementation<charT>::mask_word,
|
|
std::ctype<char>::xdigit,
|
|
};
|
|
#else
|
|
static const char_class_type masks[22] =
|
|
{
|
|
0,
|
|
::boost::re_detail::char_class_alnum,
|
|
::boost::re_detail::char_class_alpha,
|
|
::boost::re_detail::char_class_blank,
|
|
::boost::re_detail::char_class_cntrl,
|
|
::boost::re_detail::char_class_digit,
|
|
::boost::re_detail::char_class_digit,
|
|
::boost::re_detail::char_class_graph,
|
|
::boost::re_detail::char_class_horizontal_space,
|
|
::boost::re_detail::char_class_lower,
|
|
::boost::re_detail::char_class_lower,
|
|
::boost::re_detail::char_class_print,
|
|
::boost::re_detail::char_class_punct,
|
|
::boost::re_detail::char_class_space,
|
|
::boost::re_detail::char_class_space,
|
|
::boost::re_detail::char_class_upper,
|
|
::boost::re_detail::char_class_unicode,
|
|
::boost::re_detail::char_class_upper,
|
|
::boost::re_detail::char_class_vertical_space,
|
|
::boost::re_detail::char_class_alnum | ::boost::re_detail::char_class_word,
|
|
::boost::re_detail::char_class_alnum | ::boost::re_detail::char_class_word,
|
|
::boost::re_detail::char_class_xdigit,
|
|
};
|
|
#endif
|
|
if(m_custom_class_names.size())
|
|
{
|
|
typedef typename std::map<std::basic_string<charT>, char_class_type>::const_iterator map_iter;
|
|
map_iter pos = m_custom_class_names.find(string_type(p1, p2));
|
|
if(pos != m_custom_class_names.end())
|
|
return pos->second;
|
|
}
|
|
std::size_t state_id = 1 + re_detail::get_default_class_id(p1, p2);
|
|
BOOST_ASSERT(state_id < sizeof(masks) / sizeof(masks[0]));
|
|
return masks[state_id];
|
|
}
|
|
|
|
#ifdef BOOST_REGEX_BUGGY_CTYPE_FACET
|
|
template <class charT>
|
|
bool cpp_regex_traits_implementation<charT>::isctype(const charT c, char_class_type mask) const
|
|
{
|
|
return
|
|
((mask & ::boost::re_detail::char_class_space) && (this->m_pctype->is(std::ctype<charT>::space, c)))
|
|
|| ((mask & ::boost::re_detail::char_class_print) && (this->m_pctype->is(std::ctype<charT>::print, c)))
|
|
|| ((mask & ::boost::re_detail::char_class_cntrl) && (this->m_pctype->is(std::ctype<charT>::cntrl, c)))
|
|
|| ((mask & ::boost::re_detail::char_class_upper) && (this->m_pctype->is(std::ctype<charT>::upper, c)))
|
|
|| ((mask & ::boost::re_detail::char_class_lower) && (this->m_pctype->is(std::ctype<charT>::lower, c)))
|
|
|| ((mask & ::boost::re_detail::char_class_alpha) && (this->m_pctype->is(std::ctype<charT>::alpha, c)))
|
|
|| ((mask & ::boost::re_detail::char_class_digit) && (this->m_pctype->is(std::ctype<charT>::digit, c)))
|
|
|| ((mask & ::boost::re_detail::char_class_punct) && (this->m_pctype->is(std::ctype<charT>::punct, c)))
|
|
|| ((mask & ::boost::re_detail::char_class_xdigit) && (this->m_pctype->is(std::ctype<charT>::xdigit, c)))
|
|
|| ((mask & ::boost::re_detail::char_class_blank) && (this->m_pctype->is(std::ctype<charT>::space, c)) && !::boost::re_detail::is_separator(c))
|
|
|| ((mask & ::boost::re_detail::char_class_word) && (c == '_'))
|
|
|| ((mask & ::boost::re_detail::char_class_unicode) && ::boost::re_detail::is_extended(c))
|
|
|| ((mask & ::boost::re_detail::char_class_vertical_space) && (is_separator(c) || (c == '\v')))
|
|
|| ((mask & ::boost::re_detail::char_class_horizontal_space) && this->m_pctype->is(std::ctype<charT>::space, c) && !(is_separator(c) || (c == '\v')));
|
|
}
|
|
#endif
|
|
|
|
|
|
template <class charT>
|
|
inline boost::shared_ptr<const cpp_regex_traits_implementation<charT> > create_cpp_regex_traits(const std::locale& l BOOST_APPEND_EXPLICIT_TEMPLATE_TYPE(charT))
|
|
{
|
|
cpp_regex_traits_base<charT> key(l);
|
|
return ::boost::object_cache<cpp_regex_traits_base<charT>, cpp_regex_traits_implementation<charT> >::get(key, 5);
|
|
}
|
|
|
|
} // re_detail
|
|
|
|
template <class charT>
|
|
class cpp_regex_traits
|
|
{
|
|
private:
|
|
typedef std::ctype<charT> ctype_type;
|
|
public:
|
|
typedef charT char_type;
|
|
typedef std::size_t size_type;
|
|
typedef std::basic_string<char_type> string_type;
|
|
typedef std::locale locale_type;
|
|
typedef boost::uint_least32_t char_class_type;
|
|
|
|
struct boost_extensions_tag{};
|
|
|
|
cpp_regex_traits()
|
|
: m_pimpl(re_detail::create_cpp_regex_traits<charT>(std::locale()))
|
|
{ }
|
|
static size_type length(const char_type* p)
|
|
{
|
|
return std::char_traits<charT>::length(p);
|
|
}
|
|
regex_constants::syntax_type syntax_type(charT c)const
|
|
{
|
|
return m_pimpl->syntax_type(c);
|
|
}
|
|
regex_constants::escape_syntax_type escape_syntax_type(charT c) const
|
|
{
|
|
return m_pimpl->escape_syntax_type(c);
|
|
}
|
|
charT translate(charT c) const
|
|
{
|
|
return c;
|
|
}
|
|
charT translate_nocase(charT c) const
|
|
{
|
|
return m_pimpl->m_pctype->tolower(c);
|
|
}
|
|
charT translate(charT c, bool icase) const
|
|
{
|
|
return icase ? m_pimpl->m_pctype->tolower(c) : c;
|
|
}
|
|
charT tolower(charT c) const
|
|
{
|
|
return m_pimpl->m_pctype->tolower(c);
|
|
}
|
|
charT toupper(charT c) const
|
|
{
|
|
return m_pimpl->m_pctype->toupper(c);
|
|
}
|
|
string_type transform(const charT* p1, const charT* p2) const
|
|
{
|
|
return m_pimpl->transform(p1, p2);
|
|
}
|
|
string_type transform_primary(const charT* p1, const charT* p2) const
|
|
{
|
|
return m_pimpl->transform_primary(p1, p2);
|
|
}
|
|
char_class_type lookup_classname(const charT* p1, const charT* p2) const
|
|
{
|
|
return m_pimpl->lookup_classname(p1, p2);
|
|
}
|
|
string_type lookup_collatename(const charT* p1, const charT* p2) const
|
|
{
|
|
return m_pimpl->lookup_collatename(p1, p2);
|
|
}
|
|
bool isctype(charT c, char_class_type f) const
|
|
{
|
|
#ifndef BOOST_REGEX_BUGGY_CTYPE_FACET
|
|
typedef typename std::ctype<charT>::mask ctype_mask;
|
|
|
|
static const ctype_mask mask_base =
|
|
static_cast<ctype_mask>(
|
|
std::ctype<charT>::alnum
|
|
| std::ctype<charT>::alpha
|
|
| std::ctype<charT>::cntrl
|
|
| std::ctype<charT>::digit
|
|
| std::ctype<charT>::graph
|
|
| std::ctype<charT>::lower
|
|
| std::ctype<charT>::print
|
|
| std::ctype<charT>::punct
|
|
| std::ctype<charT>::space
|
|
| std::ctype<charT>::upper
|
|
| std::ctype<charT>::xdigit);
|
|
|
|
if((f & mask_base)
|
|
&& (m_pimpl->m_pctype->is(
|
|
static_cast<ctype_mask>(f & mask_base), c)))
|
|
return true;
|
|
else if((f & re_detail::cpp_regex_traits_implementation<charT>::mask_unicode) && re_detail::is_extended(c))
|
|
return true;
|
|
else if((f & re_detail::cpp_regex_traits_implementation<charT>::mask_word) && (c == '_'))
|
|
return true;
|
|
else if((f & re_detail::cpp_regex_traits_implementation<charT>::mask_blank)
|
|
&& m_pimpl->m_pctype->is(std::ctype<charT>::space, c)
|
|
&& !re_detail::is_separator(c))
|
|
return true;
|
|
else if((f & re_detail::cpp_regex_traits_implementation<charT>::mask_vertical)
|
|
&& (::boost::re_detail::is_separator(c) || (c == '\v')))
|
|
return true;
|
|
else if((f & re_detail::cpp_regex_traits_implementation<charT>::mask_horizontal)
|
|
&& this->isctype(c, std::ctype<charT>::space) && !this->isctype(c, re_detail::cpp_regex_traits_implementation<charT>::mask_vertical))
|
|
return true;
|
|
return false;
|
|
#else
|
|
return m_pimpl->isctype(c, f);
|
|
#endif
|
|
}
|
|
int toi(const charT*& p1, const charT* p2, int radix)const;
|
|
int value(charT c, int radix)const
|
|
{
|
|
const charT* pc = &c;
|
|
return toi(pc, pc + 1, radix);
|
|
}
|
|
locale_type imbue(locale_type l)
|
|
{
|
|
std::locale result(getloc());
|
|
m_pimpl = re_detail::create_cpp_regex_traits<charT>(l);
|
|
return result;
|
|
}
|
|
locale_type getloc()const
|
|
{
|
|
return m_pimpl->m_locale;
|
|
}
|
|
std::string error_string(regex_constants::error_type n) const
|
|
{
|
|
return m_pimpl->error_string(n);
|
|
}
|
|
|
|
//
|
|
// extension:
|
|
// set the name of the message catalog in use (defaults to "boost_regex").
|
|
//
|
|
static std::string catalog_name(const std::string& name);
|
|
static std::string get_catalog_name();
|
|
|
|
private:
|
|
boost::shared_ptr<const re_detail::cpp_regex_traits_implementation<charT> > m_pimpl;
|
|
//
|
|
// catalog name handler:
|
|
//
|
|
static std::string& get_catalog_name_inst();
|
|
|
|
#ifdef BOOST_HAS_THREADS
|
|
static static_mutex& get_mutex_inst();
|
|
#endif
|
|
};
|
|
|
|
|
|
template <class charT>
|
|
int cpp_regex_traits<charT>::toi(const charT*& first, const charT* last, int radix)const
|
|
{
|
|
re_detail::parser_buf<charT> sbuf; // buffer for parsing numbers.
|
|
std::basic_istream<charT> is(&sbuf); // stream for parsing numbers.
|
|
|
|
// we do NOT want to parse any thousands separators inside the stream:
|
|
last = std::find(first, last, BOOST_USE_FACET(std::numpunct<charT>, is.getloc()).thousands_sep());
|
|
|
|
sbuf.pubsetbuf(const_cast<charT*>(static_cast<const charT*>(first)), static_cast<std::streamsize>(last-first));
|
|
is.clear();
|
|
if(std::abs(radix) == 16) is >> std::hex;
|
|
else if(std::abs(radix) == 8) is >> std::oct;
|
|
else is >> std::dec;
|
|
int val;
|
|
if(is >> val)
|
|
{
|
|
first = first + ((last - first) - sbuf.in_avail());
|
|
return val;
|
|
}
|
|
else
|
|
return -1;
|
|
}
|
|
|
|
template <class charT>
|
|
std::string cpp_regex_traits<charT>::catalog_name(const std::string& name)
|
|
{
|
|
#ifdef BOOST_HAS_THREADS
|
|
static_mutex::scoped_lock lk(get_mutex_inst());
|
|
#endif
|
|
std::string result(get_catalog_name_inst());
|
|
get_catalog_name_inst() = name;
|
|
return result;
|
|
}
|
|
|
|
template <class charT>
|
|
std::string& cpp_regex_traits<charT>::get_catalog_name_inst()
|
|
{
|
|
static std::string s_name;
|
|
return s_name;
|
|
}
|
|
|
|
template <class charT>
|
|
std::string cpp_regex_traits<charT>::get_catalog_name()
|
|
{
|
|
#ifdef BOOST_HAS_THREADS
|
|
static_mutex::scoped_lock lk(get_mutex_inst());
|
|
#endif
|
|
std::string result(get_catalog_name_inst());
|
|
return result;
|
|
}
|
|
|
|
#ifdef BOOST_HAS_THREADS
|
|
template <class charT>
|
|
static_mutex& cpp_regex_traits<charT>::get_mutex_inst()
|
|
{
|
|
static static_mutex s_mutex = BOOST_STATIC_MUTEX_INIT;
|
|
return s_mutex;
|
|
}
|
|
#endif
|
|
|
|
|
|
} // boost
|
|
|
|
#ifdef BOOST_MSVC
|
|
#pragma warning(pop)
|
|
#endif
|
|
|
|
#ifdef BOOST_MSVC
|
|
#pragma warning(push)
|
|
#pragma warning(disable: 4103)
|
|
#endif
|
|
#ifdef BOOST_HAS_ABI_HEADERS
|
|
# include BOOST_ABI_SUFFIX
|
|
#endif
|
|
#ifdef BOOST_MSVC
|
|
#pragma warning(pop)
|
|
#endif
|
|
|
|
#endif
|
|
|
|
#endif
|
|
|
|
|