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314 lines (282 loc) · 11.1 KB
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/*
*
* Copyright (c) 2004
* John Maddock
*
* Use, modification and distribution are subject to the
* Boost Software License, Version 1.0. (See accompanying file
* LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
*
*/
/*
* LOCATION: see http://www.boost.org for most recent version.
* FILE: wc_regex_traits.cpp
* VERSION: see <boost/version.hpp>
* DESCRIPTION: Implements out of line members for c_regex_traits<wchar_t>
*/
#define BOOST_REGEX_SOURCE
#include <boost/detail/workaround.hpp>
#include <memory>
#include <string>
#include "internals.hpp"
#if defined(_DLL_CPPLIB) && !defined(_M_CEE_PURE) && defined(_NATIVE_WCHAR_T_DEFINED) \
&& !(defined(__SGI_STL_PORT) || defined(_STLPORT_VERSION) || defined(__STD_RWCOMPILER_H__) || defined(_RWSTD_VER))\
&& BOOST_WORKAROUND(BOOST_MSVC, <1600)
//
// This is a horrible workaround, but without declaring these symbols extern we get
// duplicate symbol errors when linking if the application is built without
// /Zc:wchar_t
//
#ifdef _CRTIMP2_PURE
# define BOOST_REGEX_STDLIB_DECL _CRTIMP2_PURE
#else
# define BOOST_REGEX_STDLIB_DECL _CRTIMP2
#endif
namespace std{
#if BOOST_WORKAROUND(BOOST_MSVC, >= 1400)
template class BOOST_REGEX_STDLIB_DECL allocator<unsigned short>;
template class BOOST_REGEX_STDLIB_DECL _String_val<unsigned short, allocator<unsigned short> >;
template class BOOST_REGEX_STDLIB_DECL basic_string<unsigned short, char_traits<unsigned short>, allocator<unsigned short> >;
#endif
#if BOOST_WORKAROUND(BOOST_MSVC, > 1300) && BOOST_WORKAROUND(BOOST_MSVC, BOOST_TESTED_AT(1400))
template<> BOOST_REGEX_STDLIB_DECL std::size_t __cdecl char_traits<unsigned short>::length(unsigned short const*);
#endif
template BOOST_REGEX_STDLIB_DECL bool __cdecl operator==(
const basic_string<unsigned short, char_traits<unsigned short>, allocator<unsigned short> >&,
const basic_string<unsigned short, char_traits<unsigned short>, allocator<unsigned short> >&);
template BOOST_REGEX_STDLIB_DECL bool __cdecl operator==(
const unsigned short *,
const basic_string<unsigned short, char_traits<unsigned short>, allocator<unsigned short> >&);
template BOOST_REGEX_STDLIB_DECL bool __cdecl operator==(
const basic_string<unsigned short, char_traits<unsigned short>, allocator<unsigned short> >&,
const unsigned short *);
template BOOST_REGEX_STDLIB_DECL bool __cdecl operator<(
const basic_string<unsigned short, char_traits<unsigned short>, allocator<unsigned short> >&,
const basic_string<unsigned short, char_traits<unsigned short>, allocator<unsigned short> >&);
template BOOST_REGEX_STDLIB_DECL bool __cdecl operator>(
const basic_string<unsigned short, char_traits<unsigned short>, allocator<unsigned short> >&,
const basic_string<unsigned short, char_traits<unsigned short>, allocator<unsigned short> >&);
}
#endif
#include <boost/regex/config.hpp>
#include <boost/detail/workaround.hpp>
#if !BOOST_WORKAROUND(__BORLANDC__, < 0x560)
#include <boost/regex/v4/c_regex_traits.hpp>
#ifndef BOOST_NO_WREGEX
#include <boost/regex/v4/primary_transform.hpp>
#include <boost/regex/v4/regex_traits_defaults.hpp>
#if defined(BOOST_NO_STDC_NAMESPACE)
namespace std{
using ::wcstol;
}
#endif
namespace boost{
c_regex_traits<wchar_t>::string_type BOOST_REGEX_CALL c_regex_traits<wchar_t>::transform(const wchar_t* p1, const wchar_t* p2)
{
std::size_t r;
std::size_t s = 10;
std::wstring src(p1, p2);
std::wstring result(s, L' ');
while(s < (r = std::wcsxfrm(&*result.begin(), src.c_str(), s)))
{
#if defined(_CPPLIB_VER)
//
// A bug in VC11 and 12 causes the program to hang if we pass a null-string
// to std::strxfrm, but only for certain locales :-(
// Probably effects Intel and Clang or any compiler using the VC std library (Dinkumware).
//
if(r == INT_MAX)
{
result.erase();
result.insert(result.begin(), static_cast<wchar_t>(0));
return result;
}
#endif
result.append(r - s + 3, L' ');
s = result.size();
}
result.erase(r);
return result;
}
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)
{
static wchar_t s_delim;
static const int s_collate_type = ::boost::BOOST_REGEX_DETAIL_NS::find_sort_syntax(static_cast<const c_regex_traits<wchar_t>*>(0), &s_delim);
std::wstring result;
//
// What we do here depends upon the format of the sort key returned by
// sort key returned by this->transform:
//
switch(s_collate_type)
{
case ::boost::BOOST_REGEX_DETAIL_NS::sort_C:
case ::boost::BOOST_REGEX_DETAIL_NS::sort_unknown:
// the best we can do is translate to lower case, then get a regular sort key:
{
result.assign(p1, p2);
for(std::wstring::size_type i = 0; i < result.size(); ++i)
result[i] = (std::towlower)(result[i]);
result = c_regex_traits<wchar_t>::transform(&*result.begin(), &*result.begin() + result.size());
break;
}
case ::boost::BOOST_REGEX_DETAIL_NS::sort_fixed:
{
// get a regular sort key, and then truncate it:
result = c_regex_traits<wchar_t>::transform(&*result.begin(), &*result.begin() + result.size());
result.erase(s_delim);
break;
}
case ::boost::BOOST_REGEX_DETAIL_NS::sort_delim:
// get a regular sort key, and then truncate everything after the delim:
result = c_regex_traits<wchar_t>::transform(&*result.begin(), &*result.begin() + result.size());
if(result.size() && (result[0] == s_delim))
break;
std::size_t i;
for(i = 0; i < result.size(); ++i)
{
if(result[i] == s_delim)
break;
}
result.erase(i);
break;
}
if(result.empty())
result = std::wstring(1, char(0));
return result;
}
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)
{
static const char_class_type masks[] =
{
0,
char_class_alnum,
char_class_alpha,
char_class_blank,
char_class_cntrl,
char_class_digit,
char_class_digit,
char_class_graph,
char_class_horizontal,
char_class_lower,
char_class_lower,
char_class_print,
char_class_punct,
char_class_space,
char_class_space,
char_class_upper,
char_class_unicode,
char_class_upper,
char_class_vertical,
char_class_alnum | char_class_word,
char_class_alnum | char_class_word,
char_class_xdigit,
};
int idx = ::boost::BOOST_REGEX_DETAIL_NS::get_default_class_id(p1, p2);
if(idx < 0)
{
std::wstring s(p1, p2);
for(std::wstring::size_type i = 0; i < s.size(); ++i)
s[i] = (std::towlower)(s[i]);
idx = ::boost::BOOST_REGEX_DETAIL_NS::get_default_class_id(&*s.begin(), &*s.begin() + s.size());
}
BOOST_ASSERT(idx+1 < static_cast<int>(sizeof(masks) / sizeof(masks[0])));
return masks[idx+1];
}
bool BOOST_REGEX_CALL c_regex_traits<wchar_t>::isctype(wchar_t c, char_class_type mask)
{
return
((mask & char_class_space) && (std::iswspace)(c))
|| ((mask & char_class_print) && (std::iswprint)(c))
|| ((mask & char_class_cntrl) && (std::iswcntrl)(c))
|| ((mask & char_class_upper) && (std::iswupper)(c))
|| ((mask & char_class_lower) && (std::iswlower)(c))
|| ((mask & char_class_alpha) && (std::iswalpha)(c))
|| ((mask & char_class_digit) && (std::iswdigit)(c))
|| ((mask & char_class_punct) && (std::iswpunct)(c))
|| ((mask & char_class_xdigit) && (std::iswxdigit)(c))
|| ((mask & char_class_blank) && (std::iswspace)(c) && !::boost::BOOST_REGEX_DETAIL_NS::is_separator(c))
|| ((mask & char_class_word) && (c == '_'))
|| ((mask & char_class_unicode) && (c & ~static_cast<wchar_t>(0xff)))
|| ((mask & char_class_vertical) && (::boost::BOOST_REGEX_DETAIL_NS::is_separator(c) || (c == L'\v')))
|| ((mask & char_class_horizontal) && (std::iswspace)(c) && !::boost::BOOST_REGEX_DETAIL_NS::is_separator(c) && (c != L'\v'));
}
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)
{
#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 wchar_t* p0 = p1;
while(p0 != p2)
name.append(1, char(*p0++));
#endif
name = ::boost::BOOST_REGEX_DETAIL_NS::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, wchar_t(*b++));
return result;
}
#endif
if(p2 - p1 == 1)
return string_type(1, *p1);
return string_type();
}
int BOOST_REGEX_CALL c_regex_traits<wchar_t>::value(wchar_t c, int radix)
{
#ifdef __BORLANDC__
// workaround for broken wcstol:
if((std::iswxdigit)(c) == 0)
return -1;
#endif
wchar_t b[2] = { c, '\0', };
wchar_t* ep;
int result = std::wcstol(b, &ep, radix);
if(ep == b)
return -1;
return result;
}
#ifdef BOOST_REGEX_HAS_OTHER_WCHAR_T
c_regex_traits<unsigned short>::string_type BOOST_REGEX_CALL c_regex_traits<unsigned short>::transform(const unsigned short* p1, const unsigned short* p2)
{
std::wstring result = c_regex_traits<wchar_t>::transform((const wchar_t*)p1, (const wchar_t*)p2);
return string_type(result.begin(), result.end());
}
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)
{
std::wstring result = c_regex_traits<wchar_t>::transform_primary((const wchar_t*)p1, (const wchar_t*)p2);
return string_type(result.begin(), result.end());
}
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)
{
return c_regex_traits<wchar_t>::lookup_classname((const wchar_t*)p1, (const wchar_t*)p2);
}
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)
{
std::wstring result = c_regex_traits<wchar_t>::lookup_collatename((const wchar_t*)p1, (const wchar_t*)p2);
return string_type(result.begin(), result.end());
}
bool BOOST_REGEX_CALL c_regex_traits<unsigned short>::isctype(unsigned short c, char_class_type m)
{
return c_regex_traits<wchar_t>::isctype(c, m);
}
int BOOST_REGEX_CALL c_regex_traits<unsigned short>::value(unsigned short c, int radix)
{
return c_regex_traits<wchar_t>::value(c, radix);
}
#endif
}
#endif // BOOST_NO_WREGEX
#endif // __BORLANDC__
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