forked from boostorg/regex
merged changes in regex5 branch
[SVN r26692]
This commit is contained in:
262
src/wc_regex_traits.cpp
Normal file
262
src/wc_regex_traits.cpp
Normal file
@ -0,0 +1,262 @@
|
||||
/*
|
||||
*
|
||||
* Copyright (c) 2004
|
||||
* Dr 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/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)))
|
||||
{
|
||||
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::re_detail::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::re_detail::sort_C:
|
||||
case ::boost::re_detail::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::re_detail::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::re_detail::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());
|
||||
std::size_t i;
|
||||
for(i = 0; i < result.size(); ++i)
|
||||
{
|
||||
if(result[i] == s_delim)
|
||||
break;
|
||||
}
|
||||
result.erase(i);
|
||||
break;
|
||||
}
|
||||
return result;
|
||||
}
|
||||
|
||||
enum
|
||||
{
|
||||
char_class_space=1<<0,
|
||||
char_class_print=1<<1,
|
||||
char_class_cntrl=1<<2,
|
||||
char_class_upper=1<<3,
|
||||
char_class_lower=1<<4,
|
||||
char_class_alpha=1<<5,
|
||||
char_class_digit=1<<6,
|
||||
char_class_punct=1<<7,
|
||||
char_class_xdigit=1<<8,
|
||||
char_class_alnum=char_class_alpha|char_class_digit,
|
||||
char_class_graph=char_class_alnum|char_class_punct,
|
||||
char_class_blank=1<<9,
|
||||
char_class_word=1<<10,
|
||||
char_class_unicode=1<<11
|
||||
};
|
||||
|
||||
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_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_alnum | char_class_word,
|
||||
char_class_alnum | char_class_word,
|
||||
char_class_xdigit,
|
||||
};
|
||||
|
||||
int id = ::boost::re_detail::get_default_class_id(p1, p2);
|
||||
if(id < 0)
|
||||
{
|
||||
std::wstring s(p1, p2);
|
||||
for(std::wstring::size_type i = 0; i < s.size(); ++i)
|
||||
s[i] = (std::towlower)(s[i]);
|
||||
id = ::boost::re_detail::get_default_class_id(&*s.begin(), &*s.begin() + s.size());
|
||||
}
|
||||
BOOST_ASSERT(id+1 < static_cast<int>(sizeof(masks) / sizeof(masks[0])));
|
||||
return masks[id+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::re_detail::is_separator(c))
|
||||
|| ((mask & char_class_word) && (c == '_'))
|
||||
|| ((mask & char_class_unicode) && (c & ~static_cast<wchar_t>(0xff)));
|
||||
}
|
||||
|
||||
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 charT* p0 = p1;
|
||||
while(p0 != p2)
|
||||
name.append(1, char(*p0++));
|
||||
#endif
|
||||
name = ::boost::re_detail::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();
|
||||
}
|
||||
|
||||
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__
|
||||
|
Reference in New Issue
Block a user