/* | |
* | |
* 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 cpp_regex_traits.hpp | |
* VERSION see <boost/version.hpp> | |
* DESCRIPTION: Declares regular expression traits class cpp_regex_traits. | |
*/ | |
#ifndef BOOST_CPP_REGEX_TRAITS_HPP_INCLUDED | |
#define BOOST_CPP_REGEX_TRAITS_HPP_INCLUDED | |
#include <boost/config.hpp> | |
#ifndef BOOST_NO_STD_LOCALE | |
#ifndef BOOST_RE_PAT_EXCEPT_HPP | |
#include <boost/regex/pattern_except.hpp> | |
#endif | |
#ifndef BOOST_REGEX_TRAITS_DEFAULTS_HPP_INCLUDED | |
#include <boost/regex/v4/regex_traits_defaults.hpp> | |
#endif | |
#ifdef BOOST_HAS_THREADS | |
#include <boost/regex/pending/static_mutex.hpp> | |
#endif | |
#ifndef BOOST_REGEX_PRIMARY_TRANSFORM | |
#include <boost/regex/v4/primary_transform.hpp> | |
#endif | |
#ifndef BOOST_REGEX_OBJECT_CACHE_HPP | |
#include <boost/regex/pending/object_cache.hpp> | |
#endif | |
#include <istream> | |
#include <ios> | |
#include <climits> | |
#ifdef BOOST_MSVC | |
#pragma warning(push) | |
#pragma warning(disable: 4103) | |
#endif | |
#ifdef BOOST_HAS_ABI_HEADERS | |
# include BOOST_ABI_PREFIX | |
#endif | |
#ifdef BOOST_MSVC | |
#pragma warning(pop) | |
#endif | |
#ifdef BOOST_MSVC | |
#pragma warning(push) | |
#pragma warning(disable:4786 4251) | |
#endif | |
namespace boost{ | |
// | |
// forward declaration is needed by some compilers: | |
// | |
template <class charT> | |
class cpp_regex_traits; | |
namespace re_detail{ | |
// | |
// class parser_buf: | |
// acts as a stream buffer which wraps around a pair of pointers: | |
// | |
template <class charT, | |
class traits = ::std::char_traits<charT> > | |
class parser_buf : public ::std::basic_streambuf<charT, traits> | |
{ | |
typedef ::std::basic_streambuf<charT, traits> base_type; | |
typedef typename base_type::int_type int_type; | |
typedef typename base_type::char_type char_type; | |
typedef typename base_type::pos_type pos_type; | |
typedef ::std::streamsize streamsize; | |
typedef typename base_type::off_type off_type; | |
public: | |
parser_buf() : base_type() { setbuf(0, 0); } | |
const charT* getnext() { return this->gptr(); } | |
protected: | |
std::basic_streambuf<charT, traits>* setbuf(char_type* s, streamsize n); | |
typename parser_buf<charT, traits>::pos_type seekpos(pos_type sp, ::std::ios_base::openmode which); | |
typename parser_buf<charT, traits>::pos_type seekoff(off_type off, ::std::ios_base::seekdir way, ::std::ios_base::openmode which); | |
private: | |
parser_buf& operator=(const parser_buf&); | |
parser_buf(const parser_buf&); | |
}; | |
template<class charT, class traits> | |
std::basic_streambuf<charT, traits>* | |
parser_buf<charT, traits>::setbuf(char_type* s, streamsize n) | |
{ | |
this->setg(s, s, s + n); | |
return this; | |
} | |
template<class charT, class traits> | |
typename parser_buf<charT, traits>::pos_type | |
parser_buf<charT, traits>::seekoff(off_type off, ::std::ios_base::seekdir way, ::std::ios_base::openmode which) | |
{ | |
if(which & ::std::ios_base::out) | |
return pos_type(off_type(-1)); | |
std::ptrdiff_t size = this->egptr() - this->eback(); | |
std::ptrdiff_t pos = this->gptr() - this->eback(); | |
charT* g = this->eback(); | |
switch(way) | |
{ | |
case ::std::ios_base::beg: | |
if((off < 0) || (off > size)) | |
return pos_type(off_type(-1)); | |
else | |
this->setg(g, g + off, g + size); | |
break; | |
case ::std::ios_base::end: | |
if((off < 0) || (off > size)) | |
return pos_type(off_type(-1)); | |
else | |
this->setg(g, g + size - off, g + size); | |
break; | |
case ::std::ios_base::cur: | |
{ | |
std::ptrdiff_t newpos = static_cast<std::ptrdiff_t>(pos + off); | |
if((newpos < 0) || (newpos > size)) | |
return pos_type(off_type(-1)); | |
else | |
this->setg(g, g + newpos, g + size); | |
break; | |
} | |
default: ; | |
} | |
#ifdef BOOST_MSVC | |
#pragma warning(push) | |
#pragma warning(disable:4244) | |
#endif | |
return static_cast<pos_type>(this->gptr() - this->eback()); | |
#ifdef BOOST_MSVC | |
#pragma warning(pop) | |
#endif | |
} | |
template<class charT, class traits> | |
typename parser_buf<charT, traits>::pos_type | |
parser_buf<charT, traits>::seekpos(pos_type sp, ::std::ios_base::openmode which) | |
{ | |
if(which & ::std::ios_base::out) | |
return pos_type(off_type(-1)); | |
off_type size = static_cast<off_type>(this->egptr() - this->eback()); | |
charT* g = this->eback(); | |
if(off_type(sp) <= size) | |
{ | |
this->setg(g, g + off_type(sp), g + size); | |
} | |
return pos_type(off_type(-1)); | |
} | |
// | |
// class cpp_regex_traits_base: | |
// acts as a container for locale and the facets we are using. | |
// | |
template <class charT> | |
struct cpp_regex_traits_base | |
{ | |
cpp_regex_traits_base(const std::locale& l) | |
{ imbue(l); } | |
std::locale imbue(const std::locale& l); | |
std::locale m_locale; | |
std::ctype<charT> const* m_pctype; | |
#ifndef BOOST_NO_STD_MESSAGES | |
std::messages<charT> const* m_pmessages; | |
#endif | |
std::collate<charT> const* m_pcollate; | |
bool operator<(const cpp_regex_traits_base& b)const | |
{ | |
if(m_pctype == b.m_pctype) | |
{ | |
#ifndef BOOST_NO_STD_MESSAGES | |
if(m_pmessages == b.m_pmessages) | |
{ | |
return m_pcollate < b.m_pcollate; | |
} | |
return m_pmessages < b.m_pmessages; | |
#else | |
return m_pcollate < b.m_pcollate; | |
#endif | |
} | |
return m_pctype < b.m_pctype; | |
} | |
bool operator==(const cpp_regex_traits_base& b)const | |
{ | |
return (m_pctype == b.m_pctype) | |
#ifndef BOOST_NO_STD_MESSAGES | |
&& (m_pmessages == b.m_pmessages) | |
#endif | |
&& (m_pcollate == b.m_pcollate); | |
} | |
}; | |
template <class charT> | |
std::locale cpp_regex_traits_base<charT>::imbue(const std::locale& l) | |
{ | |
std::locale result(m_locale); | |
m_locale = l; | |
m_pctype = &BOOST_USE_FACET(std::ctype<charT>, l); | |
#ifndef BOOST_NO_STD_MESSAGES | |
m_pmessages = BOOST_HAS_FACET(std::messages<charT>, l) ? &BOOST_USE_FACET(std::messages<charT>, l) : 0; | |
#endif | |
m_pcollate = &BOOST_USE_FACET(std::collate<charT>, l); | |
return result; | |
} | |
// | |
// class cpp_regex_traits_char_layer: | |
// implements methods that require specialisation for narrow characters: | |
// | |
template <class charT> | |
class cpp_regex_traits_char_layer : public cpp_regex_traits_base<charT> | |
{ | |
typedef std::basic_string<charT> string_type; | |
typedef std::map<charT, regex_constants::syntax_type> map_type; | |
typedef typename map_type::const_iterator map_iterator_type; | |
public: | |
cpp_regex_traits_char_layer(const std::locale& l) | |
: cpp_regex_traits_base<charT>(l) | |
{ | |
init(); | |
} | |
cpp_regex_traits_char_layer(const cpp_regex_traits_base<charT>& b) | |
: cpp_regex_traits_base<charT>(b) | |
{ | |
init(); | |
} | |
void init(); | |
regex_constants::syntax_type syntax_type(charT c)const | |
{ | |
map_iterator_type i = m_char_map.find(c); | |
return ((i == m_char_map.end()) ? 0 : i->second); | |
} | |
regex_constants::escape_syntax_type escape_syntax_type(charT c) const | |
{ | |
map_iterator_type i = m_char_map.find(c); | |
if(i == m_char_map.end()) | |
{ | |
if(this->m_pctype->is(std::ctype_base::lower, c)) return regex_constants::escape_type_class; | |
if(this->m_pctype->is(std::ctype_base::upper, c)) return regex_constants::escape_type_not_class; | |
return 0; | |
} | |
return i->second; | |
} | |
private: | |
string_type get_default_message(regex_constants::syntax_type); | |
// TODO: use a hash table when available! | |
map_type m_char_map; | |
}; | |
template <class charT> | |
void cpp_regex_traits_char_layer<charT>::init() | |
{ | |
// we need to start by initialising our syntax map so we know which | |
// character is used for which purpose: | |
#ifndef BOOST_NO_STD_MESSAGES | |
#ifndef __IBMCPP__ | |
typename std::messages<charT>::catalog cat = static_cast<std::messages<char>::catalog>(-1); | |
#else | |
typename std::messages<charT>::catalog cat = reinterpret_cast<std::messages<char>::catalog>(-1); | |
#endif | |
std::string cat_name(cpp_regex_traits<charT>::get_catalog_name()); | |
if(cat_name.size() && (this->m_pmessages != 0)) | |
{ | |
cat = this->m_pmessages->open( | |
cat_name, | |
this->m_locale); | |
if((int)cat < 0) | |
{ | |
std::string m("Unable to open message catalog: "); | |
std::runtime_error err(m + cat_name); | |
boost::re_detail::raise_runtime_error(err); | |
} | |
} | |
// | |
// if we have a valid catalog then load our messages: | |
// | |
if((int)cat >= 0) | |
{ | |
#ifndef BOOST_NO_EXCEPTIONS | |
try{ | |
#endif | |
for(regex_constants::syntax_type i = 1; i < regex_constants::syntax_max; ++i) | |
{ | |
string_type mss = this->m_pmessages->get(cat, 0, i, get_default_message(i)); | |
for(typename string_type::size_type j = 0; j < mss.size(); ++j) | |
{ | |
m_char_map[mss[j]] = i; | |
} | |
} | |
this->m_pmessages->close(cat); | |
#ifndef BOOST_NO_EXCEPTIONS | |
} | |
catch(...) | |
{ | |
if(this->m_pmessages) | |
this->m_pmessages->close(cat); | |
throw; | |
} | |
#endif | |
} | |
else | |
{ | |
#endif | |
for(regex_constants::syntax_type i = 1; i < regex_constants::syntax_max; ++i) | |
{ | |
const char* ptr = get_default_syntax(i); | |
while(ptr && *ptr) | |
{ | |
m_char_map[this->m_pctype->widen(*ptr)] = i; | |
++ptr; | |
} | |
} | |
#ifndef BOOST_NO_STD_MESSAGES | |
} | |
#endif | |
} | |
template <class charT> | |
typename cpp_regex_traits_char_layer<charT>::string_type | |
cpp_regex_traits_char_layer<charT>::get_default_message(regex_constants::syntax_type i) | |
{ | |
const char* ptr = get_default_syntax(i); | |
string_type result; | |
while(ptr && *ptr) | |
{ | |
result.append(1, this->m_pctype->widen(*ptr)); | |
++ptr; | |
} | |
return result; | |
} | |
// | |
// specialised version for narrow characters: | |
// | |
template <> | |
class BOOST_REGEX_DECL cpp_regex_traits_char_layer<char> : public cpp_regex_traits_base<char> | |
{ | |
typedef std::string string_type; | |
public: | |
cpp_regex_traits_char_layer(const std::locale& l) | |
: cpp_regex_traits_base<char>(l) | |
{ | |
init(); | |
} | |
cpp_regex_traits_char_layer(const cpp_regex_traits_base<char>& l) | |
: cpp_regex_traits_base<char>(l) | |
{ | |
init(); | |
} | |
regex_constants::syntax_type syntax_type(char c)const | |
{ | |
return m_char_map[static_cast<unsigned char>(c)]; | |
} | |
regex_constants::escape_syntax_type escape_syntax_type(char c) const | |
{ | |
return m_char_map[static_cast<unsigned char>(c)]; | |
} | |
private: | |
regex_constants::syntax_type m_char_map[1u << CHAR_BIT]; | |
void init(); | |
}; | |
#ifdef BOOST_REGEX_BUGGY_CTYPE_FACET | |
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, | |
char_class_horizontal_space=1<<12, | |
char_class_vertical_space=1<<13 | |
}; | |
#endif | |
// | |
// class cpp_regex_traits_implementation: | |
// provides pimpl implementation for cpp_regex_traits. | |
// | |
template <class charT> | |
class cpp_regex_traits_implementation : public cpp_regex_traits_char_layer<charT> | |
{ | |
public: | |
typedef typename cpp_regex_traits<charT>::char_class_type char_class_type; | |
typedef typename std::ctype<charT>::mask native_mask_type; | |
#ifndef BOOST_REGEX_BUGGY_CTYPE_FACET | |
BOOST_STATIC_CONSTANT(char_class_type, mask_blank = 1u << 24); | |
BOOST_STATIC_CONSTANT(char_class_type, mask_word = 1u << 25); | |
BOOST_STATIC_CONSTANT(char_class_type, mask_unicode = 1u << 26); | |
BOOST_STATIC_CONSTANT(char_class_type, mask_horizontal = 1u << 27); | |
BOOST_STATIC_CONSTANT(char_class_type, mask_vertical = 1u << 28); | |
#endif | |
typedef std::basic_string<charT> string_type; | |
typedef charT char_type; | |
//cpp_regex_traits_implementation(); | |
cpp_regex_traits_implementation(const std::locale& l) | |
: cpp_regex_traits_char_layer<charT>(l) | |
{ | |
init(); | |
} | |
cpp_regex_traits_implementation(const cpp_regex_traits_base<charT>& l) | |
: cpp_regex_traits_char_layer<charT>(l) | |
{ | |
init(); | |
} | |
std::string error_string(regex_constants::error_type n) const | |
{ | |
if(!m_error_strings.empty()) | |
{ | |
std::map<int, std::string>::const_iterator p = m_error_strings.find(n); | |
return (p == m_error_strings.end()) ? std::string(get_default_error_string(n)) : p->second; | |
} | |
return get_default_error_string(n); | |
} | |
char_class_type lookup_classname(const charT* p1, const charT* p2) const | |
{ | |
char_class_type result = lookup_classname_imp(p1, p2); | |
if(result == 0) | |
{ | |
string_type temp(p1, p2); | |
this->m_pctype->tolower(&*temp.begin(), &*temp.begin() + temp.size()); | |
result = lookup_classname_imp(&*temp.begin(), &*temp.begin() + temp.size()); | |
} | |
return result; | |
} | |
string_type lookup_collatename(const charT* p1, const charT* p2) const; | |
string_type transform_primary(const charT* p1, const charT* p2) const; | |
string_type transform(const charT* p1, const charT* p2) const; | |
private: | |
std::map<int, std::string> m_error_strings; // error messages indexed by numberic ID | |
std::map<string_type, char_class_type> m_custom_class_names; // character class names | |
std::map<string_type, string_type> m_custom_collate_names; // collating element names | |
unsigned m_collate_type; // the form of the collation string | |
charT m_collate_delim; // the collation group delimiter | |
// | |
// helpers: | |
// | |
char_class_type lookup_classname_imp(const charT* p1, const charT* p2) const; | |
void init(); | |
#ifdef BOOST_REGEX_BUGGY_CTYPE_FACET | |
public: | |
bool isctype(charT c, char_class_type m)const; | |
#endif | |
}; | |
#ifndef BOOST_REGEX_BUGGY_CTYPE_FACET | |
#if !defined(BOOST_NO_INCLASS_MEMBER_INITIALIZATION) | |
template <class charT> | |
typename cpp_regex_traits_implementation<charT>::char_class_type const cpp_regex_traits_implementation<charT>::mask_blank; | |
template <class charT> | |
typename cpp_regex_traits_implementation<charT>::char_class_type const cpp_regex_traits_implementation<charT>::mask_word; | |
template <class charT> | |
typename cpp_regex_traits_implementation<charT>::char_class_type const cpp_regex_traits_implementation<charT>::mask_unicode; | |
template <class charT> | |
typename cpp_regex_traits_implementation<charT>::char_class_type const cpp_regex_traits_implementation<charT>::mask_vertical; | |
template <class charT> | |
typename cpp_regex_traits_implementation<charT>::char_class_type const cpp_regex_traits_implementation<charT>::mask_horizontal; | |
#endif | |
#endif | |
template <class charT> | |
typename cpp_regex_traits_implementation<charT>::string_type | |
cpp_regex_traits_implementation<charT>::transform_primary(const charT* p1, const charT* p2) const | |
{ | |
// | |
// PRECONDITIONS: | |
// | |
// A bug in gcc 3.2 (and maybe other versions as well) treats | |
// p1 as a null terminated string, for efficiency reasons | |
// we work around this elsewhere, but just assert here that | |
// we adhere to gcc's (buggy) preconditions... | |
// | |
BOOST_ASSERT(*p2 == 0); | |
string_type result; | |
// | |
// swallowing all exceptions here is a bad idea | |
// however at least one std lib will always throw | |
// std::bad_alloc for certain arguments... | |
// | |
try{ | |
// | |
// What we do here depends upon the format of the sort key returned by | |
// sort key returned by this->transform: | |
// | |
switch(m_collate_type) | |
{ | |
case sort_C: | |
case sort_unknown: | |
// the best we can do is translate to lower case, then get a regular sort key: | |
{ | |
result.assign(p1, p2); | |
this->m_pctype->tolower(&*result.begin(), &*result.begin() + result.size()); | |
result = this->m_pcollate->transform(&*result.begin(), &*result.begin() + result.size()); | |
break; | |
} | |
case sort_fixed: | |
{ | |
// get a regular sort key, and then truncate it: | |
result.assign(this->m_pcollate->transform(p1, p2)); | |
result.erase(this->m_collate_delim); | |
break; | |
} | |
case sort_delim: | |
// get a regular sort key, and then truncate everything after the delim: | |
result.assign(this->m_pcollate->transform(p1, p2)); | |
std::size_t i; | |
for(i = 0; i < result.size(); ++i) | |
{ | |
if(result[i] == m_collate_delim) | |
break; | |
} | |
result.erase(i); | |
break; | |
} | |
}catch(...){} | |
while(result.size() && (charT(0) == *result.rbegin())) | |
result.erase(result.size() - 1); | |
if(result.empty()) | |
{ | |
// character is ignorable at the primary level: | |
result = string_type(1, charT(0)); | |
} | |
return result; | |
} | |
template <class charT> | |
typename cpp_regex_traits_implementation<charT>::string_type | |
cpp_regex_traits_implementation<charT>::transform(const charT* p1, const charT* p2) const | |
{ | |
// | |
// PRECONDITIONS: | |
// | |
// A bug in gcc 3.2 (and maybe other versions as well) treats | |
// p1 as a null terminated string, for efficiency reasons | |
// we work around this elsewhere, but just assert here that | |
// we adhere to gcc's (buggy) preconditions... | |
// | |
BOOST_ASSERT(*p2 == 0); | |
// | |
// swallowing all exceptions here is a bad idea | |
// however at least one std lib will always throw | |
// std::bad_alloc for certain arguments... | |
// | |
string_type result; | |
try{ | |
result = this->m_pcollate->transform(p1, p2); | |
// | |
// Borland's STLPort version returns a NULL-terminated | |
// string that has garbage at the end - each call to | |
// std::collate<wchar_t>::transform returns a different string! | |
// So as a workaround, we'll truncate the string at the first NULL | |
// which _seems_ to work.... | |
#if BOOST_WORKAROUND(__BORLANDC__, < 0x580) | |
result.erase(result.find(charT(0))); | |
#else | |
// | |
// some implementations (Dinkumware) append unnecessary trailing \0's: | |
while(result.size() && (charT(0) == *result.rbegin())) | |
result.erase(result.size() - 1); | |
#endif | |
BOOST_ASSERT(std::find(result.begin(), result.end(), charT(0)) == result.end()); | |
} | |
catch(...) | |
{ | |
} | |
return result; | |
} | |
template <class charT> | |
typename cpp_regex_traits_implementation<charT>::string_type | |
cpp_regex_traits_implementation<charT>::lookup_collatename(const charT* p1, const charT* p2) const | |
{ | |
typedef typename std::map<string_type, string_type>::const_iterator iter_type; | |
if(m_custom_collate_names.size()) | |
{ | |
iter_type pos = m_custom_collate_names.find(string_type(p1, p2)); | |
if(pos != m_custom_collate_names.end()) | |
return pos->second; | |
} | |
#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 = 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(); | |
} | |
template <class charT> | |
void cpp_regex_traits_implementation<charT>::init() | |
{ | |
#ifndef BOOST_NO_STD_MESSAGES | |
#ifndef __IBMCPP__ | |
typename std::messages<charT>::catalog cat = static_cast<std::messages<char>::catalog>(-1); | |
#else | |
typename std::messages<charT>::catalog cat = reinterpret_cast<std::messages<char>::catalog>(-1); | |
#endif | |
std::string cat_name(cpp_regex_traits<charT>::get_catalog_name()); | |
if(cat_name.size() && (this->m_pmessages != 0)) | |
{ | |
cat = this->m_pmessages->open( | |
cat_name, | |
this->m_locale); | |
if((int)cat < 0) | |
{ | |
std::string m("Unable to open message catalog: "); | |
std::runtime_error err(m + cat_name); | |
boost::re_detail::raise_runtime_error(err); | |
} | |
} | |
// | |
// if we have a valid catalog then load our messages: | |
// | |
if((int)cat >= 0) | |
{ | |
// | |
// Error messages: | |
// | |
for(boost::regex_constants::error_type i = static_cast<boost::regex_constants::error_type>(0); | |
i <= boost::regex_constants::error_unknown; | |
i = static_cast<boost::regex_constants::error_type>(i + 1)) | |
{ | |
const char* p = get_default_error_string(i); | |
string_type default_message; | |
while(*p) | |
{ | |
default_message.append(1, this->m_pctype->widen(*p)); | |
++p; | |
} | |
string_type s = this->m_pmessages->get(cat, 0, i+200, default_message); | |
std::string result; | |
for(std::string::size_type j = 0; j < s.size(); ++j) | |
{ | |
result.append(1, this->m_pctype->narrow(s[j], 0)); | |
} | |
m_error_strings[i] = result; | |
} | |
// | |
// Custom class names: | |
// | |
#ifndef BOOST_REGEX_BUGGY_CTYPE_FACET | |
static const char_class_type masks[16] = | |
{ | |
std::ctype<charT>::alnum, | |
std::ctype<charT>::alpha, | |
std::ctype<charT>::cntrl, | |
std::ctype<charT>::digit, | |
std::ctype<charT>::graph, | |
cpp_regex_traits_implementation<charT>::mask_horizontal, | |
std::ctype<charT>::lower, | |
std::ctype<charT>::print, | |
std::ctype<charT>::punct, | |
std::ctype<charT>::space, | |
std::ctype<charT>::upper, | |
cpp_regex_traits_implementation<charT>::mask_vertical, | |
std::ctype<charT>::xdigit, | |
cpp_regex_traits_implementation<charT>::mask_blank, | |
cpp_regex_traits_implementation<charT>::mask_word, | |
cpp_regex_traits_implementation<charT>::mask_unicode, | |
}; | |
#else | |
static const char_class_type masks[16] = | |
{ | |
::boost::re_detail::char_class_alnum, | |
::boost::re_detail::char_class_alpha, | |
::boost::re_detail::char_class_cntrl, | |
::boost::re_detail::char_class_digit, | |
::boost::re_detail::char_class_graph, | |
::boost::re_detail::char_class_horizontal_space, | |
::boost::re_detail::char_class_lower, | |
::boost::re_detail::char_class_print, | |
::boost::re_detail::char_class_punct, | |
::boost::re_detail::char_class_space, | |
::boost::re_detail::char_class_upper, | |
::boost::re_detail::char_class_vertical_space, | |
::boost::re_detail::char_class_xdigit, | |
::boost::re_detail::char_class_blank, | |
::boost::re_detail::char_class_word, | |
::boost::re_detail::char_class_unicode, | |
}; | |
#endif | |
static const string_type null_string; | |
for(unsigned int j = 0; j <= 13; ++j) | |
{ | |
string_type s(this->m_pmessages->get(cat, 0, j+300, null_string)); | |
if(s.size()) | |
this->m_custom_class_names[s] = masks[j]; | |
} | |
} | |
#endif | |
// | |
// get the collation format used by m_pcollate: | |
// | |
m_collate_type = re_detail::find_sort_syntax(this, &m_collate_delim); | |
} | |
template <class charT> | |
typename cpp_regex_traits_implementation<charT>::char_class_type | |
cpp_regex_traits_implementation<charT>::lookup_classname_imp(const charT* p1, const charT* p2) const | |
{ | |
#ifndef BOOST_REGEX_BUGGY_CTYPE_FACET | |
static const char_class_type masks[22] = | |
{ | |
0, | |
std::ctype<char>::alnum, | |
std::ctype<char>::alpha, | |
cpp_regex_traits_implementation<charT>::mask_blank, | |
std::ctype<char>::cntrl, | |
std::ctype<char>::digit, | |
std::ctype<char>::digit, | |
std::ctype<char>::graph, | |
cpp_regex_traits_implementation<charT>::mask_horizontal, | |
std::ctype<char>::lower, | |
std::ctype<char>::lower, | |
std::ctype<char>::print, | |
std::ctype<char>::punct, | |
std::ctype<char>::space, | |
std::ctype<char>::space, | |
std::ctype<char>::upper, | |
cpp_regex_traits_implementation<charT>::mask_unicode, | |
std::ctype<char>::upper, | |
cpp_regex_traits_implementation<charT>::mask_vertical, | |
std::ctype<char>::alnum | cpp_regex_traits_implementation<charT>::mask_word, | |
std::ctype<char>::alnum | cpp_regex_traits_implementation<charT>::mask_word, | |
std::ctype<char>::xdigit, | |
}; | |
#else | |
static const char_class_type masks[22] = | |
{ | |
0, | |
::boost::re_detail::char_class_alnum, | |
::boost::re_detail::char_class_alpha, | |
::boost::re_detail::char_class_blank, | |
::boost::re_detail::char_class_cntrl, | |
::boost::re_detail::char_class_digit, | |
::boost::re_detail::char_class_digit, | |
::boost::re_detail::char_class_graph, | |
::boost::re_detail::char_class_horizontal_space, | |
::boost::re_detail::char_class_lower, | |
::boost::re_detail::char_class_lower, | |
::boost::re_detail::char_class_print, | |
::boost::re_detail::char_class_punct, | |
::boost::re_detail::char_class_space, | |
::boost::re_detail::char_class_space, | |
::boost::re_detail::char_class_upper, | |
::boost::re_detail::char_class_unicode, | |
::boost::re_detail::char_class_upper, | |
::boost::re_detail::char_class_vertical_space, | |
::boost::re_detail::char_class_alnum | ::boost::re_detail::char_class_word, | |
::boost::re_detail::char_class_alnum | ::boost::re_detail::char_class_word, | |
::boost::re_detail::char_class_xdigit, | |
}; | |
#endif | |
if(m_custom_class_names.size()) | |
{ | |
typedef typename std::map<std::basic_string<charT>, char_class_type>::const_iterator map_iter; | |
map_iter pos = m_custom_class_names.find(string_type(p1, p2)); | |
if(pos != m_custom_class_names.end()) | |
return pos->second; | |
} | |
std::size_t state_id = 1 + re_detail::get_default_class_id(p1, p2); | |
BOOST_ASSERT(state_id < sizeof(masks) / sizeof(masks[0])); | |
return masks[state_id]; | |
} | |
#ifdef BOOST_REGEX_BUGGY_CTYPE_FACET | |
template <class charT> | |
bool cpp_regex_traits_implementation<charT>::isctype(const charT c, char_class_type mask) const | |
{ | |
return | |
((mask & ::boost::re_detail::char_class_space) && (this->m_pctype->is(std::ctype<charT>::space, c))) | |
|| ((mask & ::boost::re_detail::char_class_print) && (this->m_pctype->is(std::ctype<charT>::print, c))) | |
|| ((mask & ::boost::re_detail::char_class_cntrl) && (this->m_pctype->is(std::ctype<charT>::cntrl, c))) | |
|| ((mask & ::boost::re_detail::char_class_upper) && (this->m_pctype->is(std::ctype<charT>::upper, c))) | |
|| ((mask & ::boost::re_detail::char_class_lower) && (this->m_pctype->is(std::ctype<charT>::lower, c))) | |
|| ((mask & ::boost::re_detail::char_class_alpha) && (this->m_pctype->is(std::ctype<charT>::alpha, c))) | |
|| ((mask & ::boost::re_detail::char_class_digit) && (this->m_pctype->is(std::ctype<charT>::digit, c))) | |
|| ((mask & ::boost::re_detail::char_class_punct) && (this->m_pctype->is(std::ctype<charT>::punct, c))) | |
|| ((mask & ::boost::re_detail::char_class_xdigit) && (this->m_pctype->is(std::ctype<charT>::xdigit, c))) | |
|| ((mask & ::boost::re_detail::char_class_blank) && (this->m_pctype->is(std::ctype<charT>::space, c)) && !::boost::re_detail::is_separator(c)) | |
|| ((mask & ::boost::re_detail::char_class_word) && (c == '_')) | |
|| ((mask & ::boost::re_detail::char_class_unicode) && ::boost::re_detail::is_extended(c)) | |
|| ((mask & ::boost::re_detail::char_class_vertical_space) && (is_separator(c) || (c == '\v'))) | |
|| ((mask & ::boost::re_detail::char_class_horizontal_space) && this->m_pctype->is(std::ctype<charT>::space, c) && !(is_separator(c) || (c == '\v'))); | |
} | |
#endif | |
template <class charT> | |
inline boost::shared_ptr<const cpp_regex_traits_implementation<charT> > create_cpp_regex_traits(const std::locale& l BOOST_APPEND_EXPLICIT_TEMPLATE_TYPE(charT)) | |
{ | |
cpp_regex_traits_base<charT> key(l); | |
return ::boost::object_cache<cpp_regex_traits_base<charT>, cpp_regex_traits_implementation<charT> >::get(key, 5); | |
} | |
} // re_detail | |
template <class charT> | |
class cpp_regex_traits | |
{ | |
private: | |
typedef std::ctype<charT> ctype_type; | |
public: | |
typedef charT char_type; | |
typedef std::size_t size_type; | |
typedef std::basic_string<char_type> string_type; | |
typedef std::locale locale_type; | |
typedef boost::uint_least32_t char_class_type; | |
struct boost_extensions_tag{}; | |
cpp_regex_traits() | |
: m_pimpl(re_detail::create_cpp_regex_traits<charT>(std::locale())) | |
{ } | |
static size_type length(const char_type* p) | |
{ | |
return std::char_traits<charT>::length(p); | |
} | |
regex_constants::syntax_type syntax_type(charT c)const | |
{ | |
return m_pimpl->syntax_type(c); | |
} | |
regex_constants::escape_syntax_type escape_syntax_type(charT c) const | |
{ | |
return m_pimpl->escape_syntax_type(c); | |
} | |
charT translate(charT c) const | |
{ | |
return c; | |
} | |
charT translate_nocase(charT c) const | |
{ | |
return m_pimpl->m_pctype->tolower(c); | |
} | |
charT translate(charT c, bool icase) const | |
{ | |
return icase ? m_pimpl->m_pctype->tolower(c) : c; | |
} | |
charT tolower(charT c) const | |
{ | |
return m_pimpl->m_pctype->tolower(c); | |
} | |
charT toupper(charT c) const | |
{ | |
return m_pimpl->m_pctype->toupper(c); | |
} | |
string_type transform(const charT* p1, const charT* p2) const | |
{ | |
return m_pimpl->transform(p1, p2); | |
} | |
string_type transform_primary(const charT* p1, const charT* p2) const | |
{ | |
return m_pimpl->transform_primary(p1, p2); | |
} | |
char_class_type lookup_classname(const charT* p1, const charT* p2) const | |
{ | |
return m_pimpl->lookup_classname(p1, p2); | |
} | |
string_type lookup_collatename(const charT* p1, const charT* p2) const | |
{ | |
return m_pimpl->lookup_collatename(p1, p2); | |
} | |
bool isctype(charT c, char_class_type f) const | |
{ | |
#ifndef BOOST_REGEX_BUGGY_CTYPE_FACET | |
typedef typename std::ctype<charT>::mask ctype_mask; | |
static const ctype_mask mask_base = | |
static_cast<ctype_mask>( | |
std::ctype<charT>::alnum | |
| std::ctype<charT>::alpha | |
| std::ctype<charT>::cntrl | |
| std::ctype<charT>::digit | |
| std::ctype<charT>::graph | |
| std::ctype<charT>::lower | |
| std::ctype<charT>::print | |
| std::ctype<charT>::punct | |
| std::ctype<charT>::space | |
| std::ctype<charT>::upper | |
| std::ctype<charT>::xdigit); | |
if((f & mask_base) | |
&& (m_pimpl->m_pctype->is( | |
static_cast<ctype_mask>(f & mask_base), c))) | |
return true; | |
else if((f & re_detail::cpp_regex_traits_implementation<charT>::mask_unicode) && re_detail::is_extended(c)) | |
return true; | |
else if((f & re_detail::cpp_regex_traits_implementation<charT>::mask_word) && (c == '_')) | |
return true; | |
else if((f & re_detail::cpp_regex_traits_implementation<charT>::mask_blank) | |
&& m_pimpl->m_pctype->is(std::ctype<charT>::space, c) | |
&& !re_detail::is_separator(c)) | |
return true; | |
else if((f & re_detail::cpp_regex_traits_implementation<charT>::mask_vertical) | |
&& (::boost::re_detail::is_separator(c) || (c == '\v'))) | |
return true; | |
else if((f & re_detail::cpp_regex_traits_implementation<charT>::mask_horizontal) | |
&& this->isctype(c, std::ctype<charT>::space) && !this->isctype(c, re_detail::cpp_regex_traits_implementation<charT>::mask_vertical)) | |
return true; | |
return false; | |
#else | |
return m_pimpl->isctype(c, f); | |
#endif | |
} | |
int toi(const charT*& p1, const charT* p2, int radix)const; | |
int value(charT c, int radix)const | |
{ | |
const charT* pc = &c; | |
return toi(pc, pc + 1, radix); | |
} | |
locale_type imbue(locale_type l) | |
{ | |
std::locale result(getloc()); | |
m_pimpl = re_detail::create_cpp_regex_traits<charT>(l); | |
return result; | |
} | |
locale_type getloc()const | |
{ | |
return m_pimpl->m_locale; | |
} | |
std::string error_string(regex_constants::error_type n) const | |
{ | |
return m_pimpl->error_string(n); | |
} | |
// | |
// extension: | |
// set the name of the message catalog in use (defaults to "boost_regex"). | |
// | |
static std::string catalog_name(const std::string& name); | |
static std::string get_catalog_name(); | |
private: | |
boost::shared_ptr<const re_detail::cpp_regex_traits_implementation<charT> > m_pimpl; | |
// | |
// catalog name handler: | |
// | |
static std::string& get_catalog_name_inst(); | |
#ifdef BOOST_HAS_THREADS | |
static static_mutex& get_mutex_inst(); | |
#endif | |
}; | |
template <class charT> | |
int cpp_regex_traits<charT>::toi(const charT*& first, const charT* last, int radix)const | |
{ | |
re_detail::parser_buf<charT> sbuf; // buffer for parsing numbers. | |
std::basic_istream<charT> is(&sbuf); // stream for parsing numbers. | |
// we do NOT want to parse any thousands separators inside the stream: | |
last = std::find(first, last, BOOST_USE_FACET(std::numpunct<charT>, is.getloc()).thousands_sep()); | |
sbuf.pubsetbuf(const_cast<charT*>(static_cast<const charT*>(first)), static_cast<std::streamsize>(last-first)); | |
is.clear(); | |
if(std::abs(radix) == 16) is >> std::hex; | |
else if(std::abs(radix) == 8) is >> std::oct; | |
else is >> std::dec; | |
int val; | |
if(is >> val) | |
{ | |
first = first + ((last - first) - sbuf.in_avail()); | |
return val; | |
} | |
else | |
return -1; | |
} | |
template <class charT> | |
std::string cpp_regex_traits<charT>::catalog_name(const std::string& name) | |
{ | |
#ifdef BOOST_HAS_THREADS | |
static_mutex::scoped_lock lk(get_mutex_inst()); | |
#endif | |
std::string result(get_catalog_name_inst()); | |
get_catalog_name_inst() = name; | |
return result; | |
} | |
template <class charT> | |
std::string& cpp_regex_traits<charT>::get_catalog_name_inst() | |
{ | |
static std::string s_name; | |
return s_name; | |
} | |
template <class charT> | |
std::string cpp_regex_traits<charT>::get_catalog_name() | |
{ | |
#ifdef BOOST_HAS_THREADS | |
static_mutex::scoped_lock lk(get_mutex_inst()); | |
#endif | |
std::string result(get_catalog_name_inst()); | |
return result; | |
} | |
#ifdef BOOST_HAS_THREADS | |
template <class charT> | |
static_mutex& cpp_regex_traits<charT>::get_mutex_inst() | |
{ | |
static static_mutex s_mutex = BOOST_STATIC_MUTEX_INIT; | |
return s_mutex; | |
} | |
#endif | |
} // boost | |
#ifdef BOOST_MSVC | |
#pragma warning(pop) | |
#endif | |
#ifdef BOOST_MSVC | |
#pragma warning(push) | |
#pragma warning(disable: 4103) | |
#endif | |
#ifdef BOOST_HAS_ABI_HEADERS | |
# include BOOST_ABI_SUFFIX | |
#endif | |
#ifdef BOOST_MSVC | |
#pragma warning(pop) | |
#endif | |
#endif | |
#endif | |