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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: c_regex_traits.cpp
* VERSION: see <boost/version.hpp>
* DESCRIPTION: Implements out of line c_regex_traits<char> members
*/
#define BOOST_REGEX_SOURCE
#include <boost/config.hpp>
#include <boost/detail/workaround.hpp>
#include "internals.hpp"
#if !BOOST_WORKAROUND(__BORLANDC__, < 0x560)
#include <boost/regex/v4/c_regex_traits.hpp>
#include <boost/regex/v4/primary_transform.hpp>
#include <boost/regex/v4/regex_traits_defaults.hpp>
#ifdef BOOST_NO_STDC_NAMESPACE
namespace std{
using ::strxfrm; using ::isspace;
using ::ispunct; using ::isalpha;
using ::isalnum; using ::iscntrl;
using ::isprint; using ::isupper;
using ::islower; using ::isdigit;
using ::isxdigit; using ::strtol;
}
#endif
#ifdef BOOST_HAS_ABI_HEADERS
# include BOOST_ABI_PREFIX
#endif
namespace boost{
c_regex_traits<char>::string_type BOOST_REGEX_CALL c_regex_traits<char>::transform(const char* p1, const char* p2)
{
std::string result(10, ' ');
std::size_t s = result.size();
std::size_t r;
std::string src(p1, p2);
while(s < (r = std::strxfrm(&*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<char>(0));
return result;
}
#endif
result.append(r - s + 3, ' ');
s = result.size();
}
result.erase(r);
return result;
}
c_regex_traits<char>::string_type BOOST_REGEX_CALL c_regex_traits<char>::transform_primary(const char* p1, const char* p2)
{
static char s_delim;
static const int s_collate_type = ::boost::BOOST_REGEX_DETAIL_NS::find_sort_syntax(static_cast<c_regex_traits<char>*>(0), &s_delim);
std::string 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::string::size_type i = 0; i < result.size(); ++i)
result[i] = static_cast<char>((std::tolower)(static_cast<unsigned char>(result[i])));
result = 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 = transform(p1, p2);
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 = transform(p1, p2);
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::string(1, char(0));
return result;
}
c_regex_traits<char>::char_class_type BOOST_REGEX_CALL c_regex_traits<char>::lookup_classname(const char* p1, const char* 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::string s(p1, p2);
for(std::string::size_type i = 0; i < s.size(); ++i)
s[i] = static_cast<char>((std::tolower)(static_cast<unsigned char>(s[i])));
idx = ::boost::BOOST_REGEX_DETAIL_NS::get_default_class_id(&*s.begin(), &*s.begin() + s.size());
}
BOOST_ASSERT(std::size_t(idx+1) < sizeof(masks) / sizeof(masks[0]));
return masks[idx+1];
}
bool BOOST_REGEX_CALL c_regex_traits<char>::isctype(char c, char_class_type mask)
{
return
((mask & char_class_space) && (std::isspace)(static_cast<unsigned char>(c)))
|| ((mask & char_class_print) && (std::isprint)(static_cast<unsigned char>(c)))
|| ((mask & char_class_cntrl) && (std::iscntrl)(static_cast<unsigned char>(c)))
|| ((mask & char_class_upper) && (std::isupper)(static_cast<unsigned char>(c)))
|| ((mask & char_class_lower) && (std::islower)(static_cast<unsigned char>(c)))
|| ((mask & char_class_alpha) && (std::isalpha)(static_cast<unsigned char>(c)))
|| ((mask & char_class_digit) && (std::isdigit)(static_cast<unsigned char>(c)))
|| ((mask & char_class_punct) && (std::ispunct)(static_cast<unsigned char>(c)))
|| ((mask & char_class_xdigit) && (std::isxdigit)(static_cast<unsigned char>(c)))
|| ((mask & char_class_blank) && (std::isspace)(static_cast<unsigned char>(c)) && !::boost::BOOST_REGEX_DETAIL_NS::is_separator(c))
|| ((mask & char_class_word) && (c == '_'))
|| ((mask & char_class_vertical) && (::boost::BOOST_REGEX_DETAIL_NS::is_separator(c) || (c == '\v')))
|| ((mask & char_class_horizontal) && (std::isspace)(static_cast<unsigned char>(c)) && !::boost::BOOST_REGEX_DETAIL_NS::is_separator(c) && (c != '\v'));
}
c_regex_traits<char>::string_type BOOST_REGEX_CALL c_regex_traits<char>::lookup_collatename(const char* p1, const char* p2)
{
std::string s(p1, p2);
s = ::boost::BOOST_REGEX_DETAIL_NS::lookup_default_collate_name(s);
if(s.empty() && (p2-p1 == 1))
s.append(1, *p1);
return s;
}
int BOOST_REGEX_CALL c_regex_traits<char>::value(char c, int radix)
{
char b[2] = { c, '\0', };
char* ep;
int result = std::strtol(b, &ep, radix);
if(ep == b)
return -1;
return result;
}
}
#ifdef BOOST_HAS_ABI_HEADERS
# include BOOST_ABI_SUFFIX
#endif
#endif
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