--- /dev/null
+/*
+ *
+ * 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/regex/config.hpp>
+#include <cstdint>
+#include <locale>
+#include <type_traits>
+
+#include <boost/regex/pattern_except.hpp>
+#include <boost/regex/v5/regex_traits_defaults.hpp>
+
+#ifdef BOOST_HAS_THREADS
+#include <mutex>
+#endif
+#include <boost/regex/v5/primary_transform.hpp>
+#include <boost/regex/v5/object_cache.hpp>
+
+#include <climits>
+#include <ios>
+#include <istream>
+
+#ifdef BOOST_REGEX_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) override;
+ typename parser_buf<charT, traits>::pos_type seekpos(pos_type sp, ::std::ios_base::openmode which) override;
+ typename parser_buf<charT, traits>::pos_type seekoff(off_type off, ::std::ios_base::seekdir way, ::std::ios_base::openmode which) override;
+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(static_cast<std::intmax_t>(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_REGEX_MSVC
+#pragma warning(push)
+#pragma warning(disable:4244)
+#endif
+ return static_cast<pos_type>(this->gptr() - this->eback());
+#ifdef BOOST_REGEX_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)
+ { (void)imbue(l); }
+ std::locale imbue(const std::locale& l);
+
+ std::locale m_locale;
+ std::ctype<charT> const* m_pctype;
+ std::messages<charT> const* m_pmessages;
+ std::collate<charT> const* m_pcollate;
+
+ bool operator<(const cpp_regex_traits_base& b)const
+ {
+ if(m_pctype == b.m_pctype)
+ {
+ if(m_pmessages == b.m_pmessages)
+ {
+ return m_pcollate < b.m_pcollate;
+ }
+ return m_pmessages < b.m_pmessages;
+ }
+ return m_pctype < b.m_pctype;
+ }
+ bool operator==(const cpp_regex_traits_base& b)const
+ {
+ return (m_pctype == b.m_pctype)
+ && (m_pmessages == b.m_pmessages)
+ && (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 = &std::use_facet<std::ctype<charT>>(l);
+ m_pmessages = std::has_facet<std::messages<charT> >(l) ? &std::use_facet<std::messages<charT> >(l) : 0;
+ m_pcollate = &std::use_facet<std::collate<charT> >(l);
+ return result;
+}
+
+//
+// class cpp_regex_traits_char_layer:
+// implements methods that require specialization 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 __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.empty()) && (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
+ {
+ 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;
+ }
+ }
+ }
+}
+
+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;
+}
+
+//
+// specialized version for narrow characters:
+//
+template <>
+class 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();
+};
+
+//
+// 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 std::make_unsigned<native_mask_type>::type unsigned_native_mask_type;
+ static const char_class_type mask_blank = 1u << 24;
+ static const char_class_type mask_word = 1u << 25;
+ static const char_class_type mask_unicode = 1u << 26;
+ static const char_class_type mask_horizontal = 1u << 27;
+ static const char_class_type mask_vertical = 1u << 28;
+
+ 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();
+};
+
+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;
+
+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_REGEX_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.empty()) && (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_REGEX_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);
+ //
+ // some implementations (Dinkumware) append unnecessary trailing \0's:
+ while((!result.empty()) && (charT(0) == *result.rbegin()))
+ result.erase(result.size() - 1);
+ //
+ // 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 std::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_REGEX_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.empty())
+ {
+ iter_type pos = m_custom_collate_names.find(string_type(p1, p2));
+ if(pos != m_custom_collate_names.end())
+ return pos->second;
+ }
+ std::string name(p1, p2);
+ name = lookup_default_collate_name(name);
+ if(!name.empty())
+ return string_type(name.begin(), name.end());
+ if(p2 - p1 == 1)
+ return string_type(1, *p1);
+ return string_type();
+}
+
+template <class charT>
+void cpp_regex_traits_implementation<charT>::init()
+{
+#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.empty()) && (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:
+ //
+ 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,
+ };
+ 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.empty())
+ this->m_custom_class_names[s] = masks[j];
+ }
+ }
+ //
+ // 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
+{
+ 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),
+ };
+ if(!m_custom_class_names.empty())
+ {
+ 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_REGEX_ASSERT(state_id < sizeof(masks) / sizeof(masks[0]));
+ return masks[state_id];
+}
+
+template <class charT>
+inline std::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 std::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
+ {
+ 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;
+ }
+ std::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:
+ std::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 std::mutex& get_mutex_inst();
+#endif
+};
+
+
+template <class charT>
+std::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, std::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;
+ std::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
+ std::lock_guard<std::mutex> 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
+ std::lock_guard<std::mutex> lk(get_mutex_inst());
+#endif
+ std::string result(get_catalog_name_inst());
+ return result;
+}
+
+#ifdef BOOST_HAS_THREADS
+template <class charT>
+std::mutex& cpp_regex_traits<charT>::get_mutex_inst()
+{
+ static std::mutex s_mutex;
+ return s_mutex;
+}
+#endif
+
+namespace BOOST_REGEX_DETAIL_NS {
+
+ inline void cpp_regex_traits_char_layer<char>::init()
+ {
+ // we need to start by initialising our syntax map so we know which
+ // character is used for which purpose:
+ std::memset(m_char_map, 0, sizeof(m_char_map));
+#ifndef __IBMCPP__
+ std::messages<char>::catalog cat = static_cast<std::messages<char>::catalog>(-1);
+#else
+ std::messages<char>::catalog cat = reinterpret_cast<std::messages<char>::catalog>(-1);
+#endif
+ std::string cat_name(cpp_regex_traits<char>::get_catalog_name());
+ if ((!cat_name.empty()) && (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_syntax(i));
+ for (string_type::size_type j = 0; j < mss.size(); ++j)
+ {
+ m_char_map[static_cast<unsigned char>(mss[j])] = i;
+ }
+ }
+ this->m_pmessages->close(cat);
+#ifndef BOOST_NO_EXCEPTIONS
+ }
+ catch (...)
+ {
+ this->m_pmessages->close(cat);
+ throw;
+ }
+#endif
+ }
+ else
+ {
+ for (regex_constants::syntax_type j = 1; j < regex_constants::syntax_max; ++j)
+ {
+ const char* ptr = get_default_syntax(j);
+ while (ptr && *ptr)
+ {
+ m_char_map[static_cast<unsigned char>(*ptr)] = j;
+ ++ptr;
+ }
+ }
+ }
+ //
+ // finish off by calculating our escape types:
+ //
+ unsigned char i = 'A';
+ do
+ {
+ if (m_char_map[i] == 0)
+ {
+ if (this->m_pctype->is(std::ctype_base::lower, i))
+ m_char_map[i] = regex_constants::escape_type_class;
+ else if (this->m_pctype->is(std::ctype_base::upper, i))
+ m_char_map[i] = regex_constants::escape_type_not_class;
+ }
+ } while (0xFF != i++);
+ }
+
+} // namespace detail
+
+
+} // boost
+
+#ifdef BOOST_REGEX_MSVC
+#pragma warning(pop)
+#endif
+
+
+#endif
projects / ceph.git / blobdiff