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302 lines
10 KiB
C++
302 lines
10 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: wc_regex_traits.cpp
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* VERSION: see <boost/version.hpp>
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* DESCRIPTION: Implements out of line members for c_regex_traits<wchar_t>
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*/
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#define BOOST_REGEX_SOURCE
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#include <boost/detail/workaround.hpp>
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#include <memory>
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#include <string>
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#include "internals.hpp"
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#if defined(_DLL_CPPLIB) && !defined(_M_CEE_PURE) && defined(_NATIVE_WCHAR_T_DEFINED) \
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&& !(defined(__SGI_STL_PORT) || defined(_STLPORT_VERSION) || defined(__STD_RWCOMPILER_H__) || defined(_RWSTD_VER))\
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&& BOOST_WORKAROUND(BOOST_MSVC, <1600)
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//
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// This is a horrible workaround, but without declaring these symbols extern we get
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// duplicate symbol errors when linking if the application is built without
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// /Zc:wchar_t
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//
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#ifdef _CRTIMP2_PURE
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# define BOOST_REGEX_STDLIB_DECL _CRTIMP2_PURE
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#else
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# define BOOST_REGEX_STDLIB_DECL _CRTIMP2
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#endif
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namespace std{
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#if BOOST_WORKAROUND(BOOST_MSVC, >= 1400)
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template class BOOST_REGEX_STDLIB_DECL allocator<unsigned short>;
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template class BOOST_REGEX_STDLIB_DECL _String_val<unsigned short, allocator<unsigned short> >;
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template class BOOST_REGEX_STDLIB_DECL basic_string<unsigned short, char_traits<unsigned short>, allocator<unsigned short> >;
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#endif
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#if BOOST_WORKAROUND(BOOST_MSVC, > 1300) && BOOST_WORKAROUND(BOOST_MSVC, BOOST_TESTED_AT(1400))
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template<> BOOST_REGEX_STDLIB_DECL std::size_t __cdecl char_traits<unsigned short>::length(unsigned short const*);
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#endif
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template BOOST_REGEX_STDLIB_DECL bool __cdecl operator==(
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const basic_string<unsigned short, char_traits<unsigned short>, allocator<unsigned short> >&,
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const basic_string<unsigned short, char_traits<unsigned short>, allocator<unsigned short> >&);
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template BOOST_REGEX_STDLIB_DECL bool __cdecl operator==(
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const unsigned short *,
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const basic_string<unsigned short, char_traits<unsigned short>, allocator<unsigned short> >&);
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template BOOST_REGEX_STDLIB_DECL bool __cdecl operator==(
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const basic_string<unsigned short, char_traits<unsigned short>, allocator<unsigned short> >&,
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const unsigned short *);
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template BOOST_REGEX_STDLIB_DECL bool __cdecl operator<(
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const basic_string<unsigned short, char_traits<unsigned short>, allocator<unsigned short> >&,
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const basic_string<unsigned short, char_traits<unsigned short>, allocator<unsigned short> >&);
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template BOOST_REGEX_STDLIB_DECL bool __cdecl operator>(
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const basic_string<unsigned short, char_traits<unsigned short>, allocator<unsigned short> >&,
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const basic_string<unsigned short, char_traits<unsigned short>, allocator<unsigned short> >&);
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}
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#endif
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#include <boost/regex/config.hpp>
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#include <boost/detail/workaround.hpp>
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#if !BOOST_WORKAROUND(__BORLANDC__, < 0x560)
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#include <boost/regex/v4/c_regex_traits.hpp>
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#ifndef BOOST_NO_WREGEX
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#include <boost/regex/v4/primary_transform.hpp>
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#include <boost/regex/v4/regex_traits_defaults.hpp>
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#if defined(BOOST_NO_STDC_NAMESPACE)
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namespace std{
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using ::wcstol;
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}
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#endif
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namespace boost{
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c_regex_traits<wchar_t>::string_type BOOST_REGEX_CALL c_regex_traits<wchar_t>::transform(const wchar_t* p1, const wchar_t* p2)
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{
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std::size_t r;
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std::size_t s = 10;
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std::wstring src(p1, p2);
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std::wstring result(s, L' ');
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while(s < (r = std::wcsxfrm(&*result.begin(), src.c_str(), s)))
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{
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result.append(r - s + 3, L' ');
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s = result.size();
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}
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result.erase(r);
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return result;
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}
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c_regex_traits<wchar_t>::string_type BOOST_REGEX_CALL c_regex_traits<wchar_t>::transform_primary(const wchar_t* p1, const wchar_t* p2)
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{
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static wchar_t s_delim;
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static const int s_collate_type = ::boost::re_detail::find_sort_syntax(static_cast<const c_regex_traits<wchar_t>*>(0), &s_delim);
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std::wstring result;
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//
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// What we do here depends upon the format of the sort key returned by
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// sort key returned by this->transform:
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//
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switch(s_collate_type)
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{
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case ::boost::re_detail::sort_C:
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case ::boost::re_detail::sort_unknown:
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// the best we can do is translate to lower case, then get a regular sort key:
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{
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result.assign(p1, p2);
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for(std::wstring::size_type i = 0; i < result.size(); ++i)
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result[i] = (std::towlower)(result[i]);
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result = c_regex_traits<wchar_t>::transform(&*result.begin(), &*result.begin() + result.size());
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break;
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}
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case ::boost::re_detail::sort_fixed:
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{
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// get a regular sort key, and then truncate it:
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result = c_regex_traits<wchar_t>::transform(&*result.begin(), &*result.begin() + result.size());
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result.erase(s_delim);
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break;
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}
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case ::boost::re_detail::sort_delim:
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// get a regular sort key, and then truncate everything after the delim:
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result = c_regex_traits<wchar_t>::transform(&*result.begin(), &*result.begin() + result.size());
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if(result.size() && (result[0] == s_delim))
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break;
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std::size_t i;
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for(i = 0; i < result.size(); ++i)
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{
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if(result[i] == s_delim)
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break;
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}
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result.erase(i);
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break;
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}
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if(result.empty())
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result = std::wstring(1, char(0));
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return result;
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}
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c_regex_traits<wchar_t>::char_class_type BOOST_REGEX_CALL c_regex_traits<wchar_t>::lookup_classname(const wchar_t* p1, const wchar_t* p2)
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{
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static const char_class_type masks[] =
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{
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0,
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char_class_alnum,
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char_class_alpha,
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char_class_blank,
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char_class_cntrl,
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char_class_digit,
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char_class_digit,
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char_class_graph,
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char_class_horizontal,
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char_class_lower,
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char_class_lower,
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char_class_print,
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char_class_punct,
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char_class_space,
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char_class_space,
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char_class_upper,
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char_class_unicode,
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char_class_upper,
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char_class_vertical,
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char_class_alnum | char_class_word,
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char_class_alnum | char_class_word,
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char_class_xdigit,
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};
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int idx = ::boost::re_detail::get_default_class_id(p1, p2);
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if(idx < 0)
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{
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std::wstring s(p1, p2);
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for(std::wstring::size_type i = 0; i < s.size(); ++i)
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s[i] = (std::towlower)(s[i]);
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idx = ::boost::re_detail::get_default_class_id(&*s.begin(), &*s.begin() + s.size());
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}
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BOOST_ASSERT(idx+1 < static_cast<int>(sizeof(masks) / sizeof(masks[0])));
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return masks[idx+1];
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}
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bool BOOST_REGEX_CALL c_regex_traits<wchar_t>::isctype(wchar_t c, char_class_type mask)
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{
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return
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((mask & char_class_space) && (std::iswspace)(c))
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|| ((mask & char_class_print) && (std::iswprint)(c))
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|| ((mask & char_class_cntrl) && (std::iswcntrl)(c))
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|| ((mask & char_class_upper) && (std::iswupper)(c))
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|| ((mask & char_class_lower) && (std::iswlower)(c))
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|| ((mask & char_class_alpha) && (std::iswalpha)(c))
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|| ((mask & char_class_digit) && (std::iswdigit)(c))
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|| ((mask & char_class_punct) && (std::iswpunct)(c))
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|| ((mask & char_class_xdigit) && (std::iswxdigit)(c))
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|| ((mask & char_class_blank) && (std::iswspace)(c) && !::boost::re_detail::is_separator(c))
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|| ((mask & char_class_word) && (c == '_'))
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|| ((mask & char_class_unicode) && (c & ~static_cast<wchar_t>(0xff)))
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|| ((mask & char_class_vertical) && (::boost::re_detail::is_separator(c) || (c == L'\v')))
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|| ((mask & char_class_horizontal) && (std::iswspace)(c) && !::boost::re_detail::is_separator(c) && (c != L'\v'));
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}
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c_regex_traits<wchar_t>::string_type BOOST_REGEX_CALL c_regex_traits<wchar_t>::lookup_collatename(const wchar_t* p1, const wchar_t* p2)
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{
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#if !defined(BOOST_NO_TEMPLATED_ITERATOR_CONSTRUCTORS)\
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&& !BOOST_WORKAROUND(BOOST_MSVC, < 1300)\
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&& !BOOST_WORKAROUND(__BORLANDC__, <= 0x0551)
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std::string name(p1, p2);
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#else
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std::string name;
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const wchar_t* p0 = p1;
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while(p0 != p2)
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name.append(1, char(*p0++));
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#endif
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name = ::boost::re_detail::lookup_default_collate_name(name);
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#if !defined(BOOST_NO_TEMPLATED_ITERATOR_CONSTRUCTORS)\
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&& !BOOST_WORKAROUND(BOOST_MSVC, < 1300)\
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&& !BOOST_WORKAROUND(__BORLANDC__, <= 0x0551)
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if(name.size())
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return string_type(name.begin(), name.end());
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#else
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if(name.size())
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{
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string_type result;
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typedef std::string::const_iterator iter;
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iter b = name.begin();
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iter e = name.end();
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while(b != e)
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result.append(1, wchar_t(*b++));
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return result;
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}
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#endif
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if(p2 - p1 == 1)
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return string_type(1, *p1);
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return string_type();
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}
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int BOOST_REGEX_CALL c_regex_traits<wchar_t>::value(wchar_t c, int radix)
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{
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#ifdef __BORLANDC__
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// workaround for broken wcstol:
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if((std::iswxdigit)(c) == 0)
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return -1;
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#endif
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wchar_t b[2] = { c, '\0', };
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wchar_t* ep;
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int result = std::wcstol(b, &ep, radix);
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if(ep == b)
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return -1;
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return result;
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}
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#ifdef BOOST_REGEX_HAS_OTHER_WCHAR_T
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c_regex_traits<unsigned short>::string_type BOOST_REGEX_CALL c_regex_traits<unsigned short>::transform(const unsigned short* p1, const unsigned short* p2)
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{
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std::wstring result = c_regex_traits<wchar_t>::transform((const wchar_t*)p1, (const wchar_t*)p2);
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return string_type(result.begin(), result.end());
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}
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c_regex_traits<unsigned short>::string_type BOOST_REGEX_CALL c_regex_traits<unsigned short>::transform_primary(const unsigned short* p1, const unsigned short* p2)
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{
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std::wstring result = c_regex_traits<wchar_t>::transform_primary((const wchar_t*)p1, (const wchar_t*)p2);
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return string_type(result.begin(), result.end());
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}
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c_regex_traits<unsigned short>::char_class_type BOOST_REGEX_CALL c_regex_traits<unsigned short>::lookup_classname(const unsigned short* p1, const unsigned short* p2)
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{
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return c_regex_traits<wchar_t>::lookup_classname((const wchar_t*)p1, (const wchar_t*)p2);
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}
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c_regex_traits<unsigned short>::string_type BOOST_REGEX_CALL c_regex_traits<unsigned short>::lookup_collatename(const unsigned short* p1, const unsigned short* p2)
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{
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std::wstring result = c_regex_traits<wchar_t>::lookup_collatename((const wchar_t*)p1, (const wchar_t*)p2);
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return string_type(result.begin(), result.end());
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}
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bool BOOST_REGEX_CALL c_regex_traits<unsigned short>::isctype(unsigned short c, char_class_type m)
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{
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return c_regex_traits<wchar_t>::isctype(c, m);
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}
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int BOOST_REGEX_CALL c_regex_traits<unsigned short>::value(unsigned short c, int radix)
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{
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return c_regex_traits<wchar_t>::value(c, radix);
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}
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#endif
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}
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#endif // BOOST_NO_WREGEX
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#endif // __BORLANDC__
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