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git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@33490 a592a061-630c-0410-9148-cb99ea01b6c8
118 lines
3.0 KiB
C++
118 lines
3.0 KiB
C++
/*
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*
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* Copyright (c) 2004
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* John Maddock
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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.cpp
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* VERSION see <boost/version.hpp>
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* DESCRIPTION: Implements cpp_regex_traits<char> (and associated helper classes).
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*/
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#define BOOST_REGEX_SOURCE
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#include <boost/config.hpp>
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#ifndef BOOST_NO_STD_LOCALE
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#include <boost/regex/regex_traits.hpp>
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#include <boost/regex/pattern_except.hpp>
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#ifdef BOOST_NO_STDC_NAMESPACE
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namespace std{
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using ::memset;
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}
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#endif
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namespace boost{ namespace re_detail{
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void cpp_regex_traits_char_layer<char>::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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std::memset(m_char_map, 0, sizeof(m_char_map));
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#ifndef BOOST_NO_STD_MESSAGES
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#ifndef __IBMCPP__
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std::messages<char>::catalog cat = static_cast<std::messages<char>::catalog>(-1);
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#else
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std::messages<char>::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<char>::get_catalog_name());
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if(cat_name.size() && (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_syntax(i));
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for(string_type::size_type j = 0; j < mss.size(); ++j)
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{
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m_char_map[static_cast<unsigned char>(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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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 j = 1; j < regex_constants::syntax_max; ++j)
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{
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const char* ptr = get_default_syntax(j);
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while(ptr && *ptr)
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{
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m_char_map[static_cast<unsigned char>(*ptr)] = j;
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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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// finish off by calculating our escape types:
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//
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unsigned char i = 'A';
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do
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{
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if(m_char_map[i] == 0)
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{
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if(this->m_pctype->is(std::ctype_base::lower, i))
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m_char_map[i] = regex_constants::escape_type_class;
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else if(this->m_pctype->is(std::ctype_base::upper, i))
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m_char_map[i] = regex_constants::escape_type_not_class;
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}
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}while(0xFF != i++);
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}
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} // re_detail
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} // boost
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#endif
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