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- /*
- *
- * Copyright (c) 2004 John Maddock
- * Copyright 2011 Garmin Ltd. or its subsidiaries
- *
- * 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>
- #include <boost/integer.hpp>
- #include <boost/type_traits/make_unsigned.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 BOOST_REGEX_DETAIL_NS{
- //
- // 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)
- {
- typedef typename boost::int_t<sizeof(way) * CHAR_BIT>::least cast_type;
- 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(static_cast<cast_type>(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::BOOST_REGEX_DETAIL_NS::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;
- typedef typename boost::make_unsigned<native_mask_type>::type unsigned_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;
- #if defined(_CPPLIB_VER)
- //
- // A bug in VC11 and 12 causes the program to hang if we pass a null-string
- // to std::collate::transform, but only for certain locales :-(
- // Probably effects Intel and Clang or any compiler using the VC std library (Dinkumware).
- //
- if(*p1 == 0)
- {
- return string_type(1, charT(0));
- }
- #endif
- //
- // swallowing all exceptions here is a bad idea
- // however at least one std lib will always throw
- // std::bad_alloc for certain arguments...
- //
- #ifndef BOOST_NO_EXCEPTIONS
- try{
- #endif
- //
- // 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;
- }
- #ifndef BOOST_NO_EXCEPTIONS
- }catch(...){}
- #endif
- 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, result2;
- #if defined(_CPPLIB_VER)
- //
- // A bug in VC11 and 12 causes the program to hang if we pass a null-string
- // to std::collate::transform, but only for certain locales :-(
- // Probably effects Intel and Clang or any compiler using the VC std library (Dinkumware).
- //
- if(*p1 == 0)
- {
- return result;
- }
- #endif
- #ifndef BOOST_NO_EXCEPTIONS
- try{
- #endif
- 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
- //
- // We may have NULL's used as separators between sections of the collate string,
- // an example would be Boost.Locale. We have no way to detect this case via
- // #defines since this can be used with any compiler/platform combination.
- // Unfortunately our state machine (which was devised when all implementations
- // used underlying C language API's) can't cope with that case. One workaround
- // is to replace each character with 2, fortunately this code isn't used that
- // much as this is now slower than before :-(
- //
- typedef typename make_unsigned<charT>::type uchar_type;
- result2.reserve(result.size() * 2 + 2);
- for(unsigned i = 0; i < result.size(); ++i)
- {
- if(static_cast<uchar_type>(result[i]) == (std::numeric_limits<uchar_type>::max)())
- {
- result2.append(1, charT((std::numeric_limits<uchar_type>::max)())).append(1, charT('b'));
- }
- else
- {
- result2.append(1, static_cast<charT>(1 + static_cast<uchar_type>(result[i]))).append(1, charT('b') - 1);
- }
- }
- BOOST_ASSERT(std::find(result2.begin(), result2.end(), charT(0)) == result2.end());
- #ifndef BOOST_NO_EXCEPTIONS
- }
- catch(...)
- {
- }
- #endif
- return result2;
- }
- 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(__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(__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::BOOST_REGEX_DETAIL_NS::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] =
- {
- static_cast<unsigned_native_mask_type>(std::ctype<charT>::alnum),
- static_cast<unsigned_native_mask_type>(std::ctype<charT>::alpha),
- static_cast<unsigned_native_mask_type>(std::ctype<charT>::cntrl),
- static_cast<unsigned_native_mask_type>(std::ctype<charT>::digit),
- static_cast<unsigned_native_mask_type>(std::ctype<charT>::graph),
- cpp_regex_traits_implementation<charT>::mask_horizontal,
- static_cast<unsigned_native_mask_type>(std::ctype<charT>::lower),
- static_cast<unsigned_native_mask_type>(std::ctype<charT>::print),
- static_cast<unsigned_native_mask_type>(std::ctype<charT>::punct),
- static_cast<unsigned_native_mask_type>(std::ctype<charT>::space),
- static_cast<unsigned_native_mask_type>(std::ctype<charT>::upper),
- cpp_regex_traits_implementation<charT>::mask_vertical,
- static_cast<unsigned_native_mask_type>(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::BOOST_REGEX_DETAIL_NS::char_class_alnum,
- ::boost::BOOST_REGEX_DETAIL_NS::char_class_alpha,
- ::boost::BOOST_REGEX_DETAIL_NS::char_class_cntrl,
- ::boost::BOOST_REGEX_DETAIL_NS::char_class_digit,
- ::boost::BOOST_REGEX_DETAIL_NS::char_class_graph,
- ::boost::BOOST_REGEX_DETAIL_NS::char_class_horizontal_space,
- ::boost::BOOST_REGEX_DETAIL_NS::char_class_lower,
- ::boost::BOOST_REGEX_DETAIL_NS::char_class_print,
- ::boost::BOOST_REGEX_DETAIL_NS::char_class_punct,
- ::boost::BOOST_REGEX_DETAIL_NS::char_class_space,
- ::boost::BOOST_REGEX_DETAIL_NS::char_class_upper,
- ::boost::BOOST_REGEX_DETAIL_NS::char_class_vertical_space,
- ::boost::BOOST_REGEX_DETAIL_NS::char_class_xdigit,
- ::boost::BOOST_REGEX_DETAIL_NS::char_class_blank,
- ::boost::BOOST_REGEX_DETAIL_NS::char_class_word,
- ::boost::BOOST_REGEX_DETAIL_NS::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 = BOOST_REGEX_DETAIL_NS::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,
- static_cast<unsigned_native_mask_type>(std::ctype<char>::alnum),
- static_cast<unsigned_native_mask_type>(std::ctype<char>::alpha),
- cpp_regex_traits_implementation<charT>::mask_blank,
- static_cast<unsigned_native_mask_type>(std::ctype<char>::cntrl),
- static_cast<unsigned_native_mask_type>(std::ctype<char>::digit),
- static_cast<unsigned_native_mask_type>(std::ctype<char>::digit),
- static_cast<unsigned_native_mask_type>(std::ctype<char>::graph),
- cpp_regex_traits_implementation<charT>::mask_horizontal,
- static_cast<unsigned_native_mask_type>(std::ctype<char>::lower),
- static_cast<unsigned_native_mask_type>(std::ctype<char>::lower),
- static_cast<unsigned_native_mask_type>(std::ctype<char>::print),
- static_cast<unsigned_native_mask_type>(std::ctype<char>::punct),
- static_cast<unsigned_native_mask_type>(std::ctype<char>::space),
- static_cast<unsigned_native_mask_type>(std::ctype<char>::space),
- static_cast<unsigned_native_mask_type>(std::ctype<char>::upper),
- cpp_regex_traits_implementation<charT>::mask_unicode,
- static_cast<unsigned_native_mask_type>(std::ctype<char>::upper),
- cpp_regex_traits_implementation<charT>::mask_vertical,
- static_cast<unsigned_native_mask_type>(std::ctype<char>::alnum) | cpp_regex_traits_implementation<charT>::mask_word,
- static_cast<unsigned_native_mask_type>(std::ctype<char>::alnum) | cpp_regex_traits_implementation<charT>::mask_word,
- static_cast<unsigned_native_mask_type>(std::ctype<char>::xdigit),
- };
- #else
- static const char_class_type masks[22] =
- {
- 0,
- ::boost::BOOST_REGEX_DETAIL_NS::char_class_alnum,
- ::boost::BOOST_REGEX_DETAIL_NS::char_class_alpha,
- ::boost::BOOST_REGEX_DETAIL_NS::char_class_blank,
- ::boost::BOOST_REGEX_DETAIL_NS::char_class_cntrl,
- ::boost::BOOST_REGEX_DETAIL_NS::char_class_digit,
- ::boost::BOOST_REGEX_DETAIL_NS::char_class_digit,
- ::boost::BOOST_REGEX_DETAIL_NS::char_class_graph,
- ::boost::BOOST_REGEX_DETAIL_NS::char_class_horizontal_space,
- ::boost::BOOST_REGEX_DETAIL_NS::char_class_lower,
- ::boost::BOOST_REGEX_DETAIL_NS::char_class_lower,
- ::boost::BOOST_REGEX_DETAIL_NS::char_class_print,
- ::boost::BOOST_REGEX_DETAIL_NS::char_class_punct,
- ::boost::BOOST_REGEX_DETAIL_NS::char_class_space,
- ::boost::BOOST_REGEX_DETAIL_NS::char_class_space,
- ::boost::BOOST_REGEX_DETAIL_NS::char_class_upper,
- ::boost::BOOST_REGEX_DETAIL_NS::char_class_unicode,
- ::boost::BOOST_REGEX_DETAIL_NS::char_class_upper,
- ::boost::BOOST_REGEX_DETAIL_NS::char_class_vertical_space,
- ::boost::BOOST_REGEX_DETAIL_NS::char_class_alnum | ::boost::BOOST_REGEX_DETAIL_NS::char_class_word,
- ::boost::BOOST_REGEX_DETAIL_NS::char_class_alnum | ::boost::BOOST_REGEX_DETAIL_NS::char_class_word,
- ::boost::BOOST_REGEX_DETAIL_NS::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 + BOOST_REGEX_DETAIL_NS::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::BOOST_REGEX_DETAIL_NS::char_class_space) && (this->m_pctype->is(std::ctype<charT>::space, c)))
- || ((mask & ::boost::BOOST_REGEX_DETAIL_NS::char_class_print) && (this->m_pctype->is(std::ctype<charT>::print, c)))
- || ((mask & ::boost::BOOST_REGEX_DETAIL_NS::char_class_cntrl) && (this->m_pctype->is(std::ctype<charT>::cntrl, c)))
- || ((mask & ::boost::BOOST_REGEX_DETAIL_NS::char_class_upper) && (this->m_pctype->is(std::ctype<charT>::upper, c)))
- || ((mask & ::boost::BOOST_REGEX_DETAIL_NS::char_class_lower) && (this->m_pctype->is(std::ctype<charT>::lower, c)))
- || ((mask & ::boost::BOOST_REGEX_DETAIL_NS::char_class_alpha) && (this->m_pctype->is(std::ctype<charT>::alpha, c)))
- || ((mask & ::boost::BOOST_REGEX_DETAIL_NS::char_class_digit) && (this->m_pctype->is(std::ctype<charT>::digit, c)))
- || ((mask & ::boost::BOOST_REGEX_DETAIL_NS::char_class_punct) && (this->m_pctype->is(std::ctype<charT>::punct, c)))
- || ((mask & ::boost::BOOST_REGEX_DETAIL_NS::char_class_xdigit) && (this->m_pctype->is(std::ctype<charT>::xdigit, c)))
- || ((mask & ::boost::BOOST_REGEX_DETAIL_NS::char_class_blank) && (this->m_pctype->is(std::ctype<charT>::space, c)) && !::boost::BOOST_REGEX_DETAIL_NS::is_separator(c))
- || ((mask & ::boost::BOOST_REGEX_DETAIL_NS::char_class_word) && (c == '_'))
- || ((mask & ::boost::BOOST_REGEX_DETAIL_NS::char_class_unicode) && ::boost::BOOST_REGEX_DETAIL_NS::is_extended(c))
- || ((mask & ::boost::BOOST_REGEX_DETAIL_NS::char_class_vertical_space) && (is_separator(c) || (c == '\v')))
- || ((mask & ::boost::BOOST_REGEX_DETAIL_NS::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)
- {
- cpp_regex_traits_base<charT> key(l);
- return ::boost::object_cache<cpp_regex_traits_base<charT>, cpp_regex_traits_implementation<charT> >::get(key, 5);
- }
- } // BOOST_REGEX_DETAIL_NS
- 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(BOOST_REGEX_DETAIL_NS::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 & BOOST_REGEX_DETAIL_NS::cpp_regex_traits_implementation<charT>::mask_unicode) && BOOST_REGEX_DETAIL_NS::is_extended(c))
- return true;
- else if((f & BOOST_REGEX_DETAIL_NS::cpp_regex_traits_implementation<charT>::mask_word) && (c == '_'))
- return true;
- else if((f & BOOST_REGEX_DETAIL_NS::cpp_regex_traits_implementation<charT>::mask_blank)
- && m_pimpl->m_pctype->is(std::ctype<charT>::space, c)
- && !BOOST_REGEX_DETAIL_NS::is_separator(c))
- return true;
- else if((f & BOOST_REGEX_DETAIL_NS::cpp_regex_traits_implementation<charT>::mask_vertical)
- && (::boost::BOOST_REGEX_DETAIL_NS::is_separator(c) || (c == '\v')))
- return true;
- else if((f & BOOST_REGEX_DETAIL_NS::cpp_regex_traits_implementation<charT>::mask_horizontal)
- && this->isctype(c, std::ctype<charT>::space) && !this->isctype(c, BOOST_REGEX_DETAIL_NS::cpp_regex_traits_implementation<charT>::mask_vertical))
- return true;
- #ifdef __CYGWIN__
- //
- // Cygwin has a buggy ctype facet, see https://www.cygwin.com/ml/cygwin/2012-08/msg00178.html:
- //
- else if((f & std::ctype<charT>::xdigit) == std::ctype<charT>::xdigit)
- {
- if((c >= 'a') && (c <= 'f'))
- return true;
- if((c >= 'A') && (c <= 'F'))
- return true;
- }
- #endif
- return false;
- #else
- return m_pimpl->isctype(c, f);
- #endif
- }
- boost::intmax_t toi(const charT*& p1, const charT* p2, int radix)const;
- int value(charT c, int radix)const
- {
- const charT* pc = &c;
- return (int)toi(pc, pc + 1, radix);
- }
- locale_type imbue(locale_type l)
- {
- std::locale result(getloc());
- m_pimpl = BOOST_REGEX_DETAIL_NS::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 BOOST_REGEX_DETAIL_NS::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>
- boost::intmax_t cpp_regex_traits<charT>::toi(const charT*& first, const charT* last, int radix)const
- {
- BOOST_REGEX_DETAIL_NS::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;
- boost::intmax_t 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
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