ceph/src/boost/libs/regex/include/boost/regex/v4/w32_regex_traits.hpp

   1 /*
   2  *
   3  * Copyright (c) 2004
   4  * John Maddock
   5  *
   6  * Use, modification and distribution are subject to the
   7  * Boost Software License, Version 1.0. (See accompanying file
   8  * LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   9  *
  10  */
  11
  12  /*
  13   *   LOCATION:    see http://www.boost.org for most recent version.
  14   *   FILE         w32_regex_traits.hpp
  15   *   VERSION      see <boost/version.hpp>
  16   *   DESCRIPTION: Declares regular expression traits class w32_regex_traits.
  17   */
  18
  19 #ifndef BOOST_W32_REGEX_TRAITS_HPP_INCLUDED
  20 #define BOOST_W32_REGEX_TRAITS_HPP_INCLUDED
  21
  22 #ifndef BOOST_REGEX_NO_WIN32_LOCALE
  23
  24 #ifndef BOOST_RE_PAT_EXCEPT_HPP
  25 #include <boost/regex/pattern_except.hpp>
  26 #endif
  27 #ifndef BOOST_REGEX_TRAITS_DEFAULTS_HPP_INCLUDED
  28 #include <boost/regex/v4/regex_traits_defaults.hpp>
  29 #endif
  30 #ifdef BOOST_HAS_THREADS
  31 #include <boost/regex/pending/static_mutex.hpp>
  32 #endif
  33 #ifndef BOOST_REGEX_PRIMARY_TRANSFORM
  34 #include <boost/regex/v4/primary_transform.hpp>
  35 #endif
  36 #ifndef BOOST_REGEX_OBJECT_CACHE_HPP
  37 #include <boost/regex/pending/object_cache.hpp>
  38 #endif
  39
  40 #ifdef BOOST_MSVC
  41 #pragma warning(push)
  42 #pragma warning(disable: 4103)
  43 #endif
  44 #ifdef BOOST_HAS_ABI_HEADERS
  45 #  include BOOST_ABI_PREFIX
  46 #endif
  47 #ifdef BOOST_MSVC
  48 #pragma warning(pop)
  49 #endif
  50
  51 #ifdef BOOST_MSVC
  52 #pragma warning(push)
  53 #pragma warning(disable:4786)
  54 #pragma warning(disable:4800)
  55 #endif
  56
  57 namespace boost{
  58
  59 //
  60 // forward declaration is needed by some compilers:
  61 //
  62 template <class charT>
  63 class w32_regex_traits;
  64
  65 namespace BOOST_REGEX_DETAIL_NS{
  66
  67 //
  68 // start by typedeffing the types we'll need:
  69 //
  70 typedef ::boost::uint32_t lcid_type;   // placeholder for LCID.
  71 typedef ::boost::shared_ptr<void> cat_type; // placeholder for dll HANDLE.
  72
  73 //
  74 // then add wrappers around the actual Win32 API's (ie implementation hiding):
  75 //
  76 BOOST_REGEX_DECL lcid_type BOOST_REGEX_CALL w32_get_default_locale();
  77 BOOST_REGEX_DECL bool BOOST_REGEX_CALL w32_is_lower(char, lcid_type);
  78 #ifndef BOOST_NO_WREGEX
  79 BOOST_REGEX_DECL bool BOOST_REGEX_CALL w32_is_lower(wchar_t, lcid_type);
  80 #ifdef BOOST_REGEX_HAS_OTHER_WCHAR_T
  81 BOOST_REGEX_DECL bool BOOST_REGEX_CALL w32_is_lower(unsigned short ca, lcid_type state_id);
  82 #endif
  83 #endif
  84 BOOST_REGEX_DECL bool BOOST_REGEX_CALL w32_is_upper(char, lcid_type);
  85 #ifndef BOOST_NO_WREGEX
  86 BOOST_REGEX_DECL bool BOOST_REGEX_CALL w32_is_upper(wchar_t, lcid_type);
  87 #ifdef BOOST_REGEX_HAS_OTHER_WCHAR_T
  88 BOOST_REGEX_DECL bool BOOST_REGEX_CALL w32_is_upper(unsigned short ca, lcid_type state_id);
  89 #endif
  90 #endif
  91 BOOST_REGEX_DECL cat_type BOOST_REGEX_CALL w32_cat_open(const std::string& name);
  92 BOOST_REGEX_DECL std::string BOOST_REGEX_CALL w32_cat_get(const cat_type& cat, lcid_type state_id, int i, const std::string& def);
  93 #ifndef BOOST_NO_WREGEX
  94 BOOST_REGEX_DECL std::wstring BOOST_REGEX_CALL w32_cat_get(const cat_type& cat, lcid_type state_id, int i, const std::wstring& def);
  95 #ifdef BOOST_REGEX_HAS_OTHER_WCHAR_T
  96 BOOST_REGEX_DECL std::basic_string<unsigned short> BOOST_REGEX_CALL w32_cat_get(const cat_type& cat, lcid_type, int i, const std::basic_string<unsigned short>& def);
  97 #endif
  98 #endif
  99 BOOST_REGEX_DECL std::string BOOST_REGEX_CALL w32_transform(lcid_type state_id, const char* p1, const char* p2);
 100 #ifndef BOOST_NO_WREGEX
 101 BOOST_REGEX_DECL std::wstring BOOST_REGEX_CALL w32_transform(lcid_type state_id, const wchar_t* p1, const wchar_t* p2);
 102 #ifdef BOOST_REGEX_HAS_OTHER_WCHAR_T
 103 BOOST_REGEX_DECL std::basic_string<unsigned short> BOOST_REGEX_CALL w32_transform(lcid_type state_id, const unsigned short* p1, const unsigned short* p2);
 104 #endif
 105 #endif
 106 BOOST_REGEX_DECL char BOOST_REGEX_CALL w32_tolower(char c, lcid_type);
 107 #ifndef BOOST_NO_WREGEX
 108 BOOST_REGEX_DECL wchar_t BOOST_REGEX_CALL w32_tolower(wchar_t c, lcid_type);
 109 #ifdef BOOST_REGEX_HAS_OTHER_WCHAR_T
 110 BOOST_REGEX_DECL unsigned short BOOST_REGEX_CALL w32_tolower(unsigned short c, lcid_type state_id);
 111 #endif
 112 #endif
 113 BOOST_REGEX_DECL char BOOST_REGEX_CALL w32_toupper(char c, lcid_type);
 114 #ifndef BOOST_NO_WREGEX
 115 BOOST_REGEX_DECL wchar_t BOOST_REGEX_CALL w32_toupper(wchar_t c, lcid_type);
 116 #endif
 117 BOOST_REGEX_DECL bool BOOST_REGEX_CALL w32_is(lcid_type, boost::uint32_t mask, char c);
 118 #ifndef BOOST_NO_WREGEX
 119 BOOST_REGEX_DECL bool BOOST_REGEX_CALL w32_is(lcid_type, boost::uint32_t mask, wchar_t c);
 120 #ifdef BOOST_REGEX_HAS_OTHER_WCHAR_T
 121 BOOST_REGEX_DECL bool BOOST_REGEX_CALL w32_is(lcid_type state_id, boost::uint32_t m, unsigned short c);
 122 #endif
 123 #endif
 124 //
 125 // class w32_regex_traits_base:
 126 // acts as a container for locale and the facets we are using.
 127 //
 128 template <class charT>
 129 struct w32_regex_traits_base
 130 {
 131    w32_regex_traits_base(lcid_type l)
 132    { imbue(l); }
 133    lcid_type imbue(lcid_type l);
 134
 135    lcid_type m_locale;
 136 };
 137
 138 template <class charT>
 139 inline lcid_type w32_regex_traits_base<charT>::imbue(lcid_type l)
 140 {
 141    lcid_type result(m_locale);
 142    m_locale = l;
 143    return result;
 144 }
 145
 146 //
 147 // class w32_regex_traits_char_layer:
 148 // implements methods that require specialisation for narrow characters:
 149 //
 150 template <class charT>
 151 class w32_regex_traits_char_layer : public w32_regex_traits_base<charT>
 152 {
 153    typedef std::basic_string<charT> string_type;
 154    typedef std::map<charT, regex_constants::syntax_type> map_type;
 155    typedef typename map_type::const_iterator map_iterator_type;
 156 public:
 157    w32_regex_traits_char_layer(const lcid_type l);
 158
 159    regex_constants::syntax_type syntax_type(charT c)const
 160    {
 161       map_iterator_type i = m_char_map.find(c);
 162       return ((i == m_char_map.end()) ? 0 : i->second);
 163    }
 164    regex_constants::escape_syntax_type escape_syntax_type(charT c) const
 165    {
 166       map_iterator_type i = m_char_map.find(c);
 167       if(i == m_char_map.end())
 168       {
 169          if(::boost::BOOST_REGEX_DETAIL_NS::w32_is_lower(c, this->m_locale)) return regex_constants::escape_type_class;
 170          if(::boost::BOOST_REGEX_DETAIL_NS::w32_is_upper(c, this->m_locale)) return regex_constants::escape_type_not_class;
 171          return 0;
 172       }
 173       return i->second;
 174    }
 175    charT tolower(charT c)const
 176    {
 177       return ::boost::BOOST_REGEX_DETAIL_NS::w32_tolower(c, this->m_locale);
 178    }
 179    bool isctype(boost::uint32_t mask, charT c)const
 180    {
 181       return ::boost::BOOST_REGEX_DETAIL_NS::w32_is(this->m_locale, mask, c);
 182    }
 183
 184 private:
 185    string_type get_default_message(regex_constants::syntax_type);
 186    // TODO: use a hash table when available!
 187    map_type m_char_map;
 188 };
 189
 190 template <class charT>
 191 w32_regex_traits_char_layer<charT>::w32_regex_traits_char_layer(::boost::BOOST_REGEX_DETAIL_NS::lcid_type l)
 192    : w32_regex_traits_base<charT>(l)
 193 {
 194    // we need to start by initialising our syntax map so we know which
 195    // character is used for which purpose:
 196    cat_type cat;
 197    std::string cat_name(w32_regex_traits<charT>::get_catalog_name());
 198    if(cat_name.size())
 199    {
 200       cat = ::boost::BOOST_REGEX_DETAIL_NS::w32_cat_open(cat_name);
 201       if(!cat)
 202       {
 203          std::string m("Unable to open message catalog: ");
 204          std::runtime_error err(m + cat_name);
 205          boost::BOOST_REGEX_DETAIL_NS::raise_runtime_error(err);
 206       }
 207    }
 208    //
 209    // if we have a valid catalog then load our messages:
 210    //
 211    if(cat)
 212    {
 213       for(regex_constants::syntax_type i = 1; i < regex_constants::syntax_max; ++i)
 214       {
 215          string_type mss = ::boost::BOOST_REGEX_DETAIL_NS::w32_cat_get(cat, this->m_locale, i, get_default_message(i));
 216          for(typename string_type::size_type j = 0; j < mss.size(); ++j)
 217          {
 218             this->m_char_map[mss[j]] = i;
 219          }
 220       }
 221    }
 222    else
 223    {
 224       for(regex_constants::syntax_type i = 1; i < regex_constants::syntax_max; ++i)
 225       {
 226          const char* ptr = get_default_syntax(i);
 227          while(ptr && *ptr)
 228          {
 229             this->m_char_map[static_cast<charT>(*ptr)] = i;
 230             ++ptr;
 231          }
 232       }
 233    }
 234 }
 235
 236 template <class charT>
 237 typename w32_regex_traits_char_layer<charT>::string_type
 238    w32_regex_traits_char_layer<charT>::get_default_message(regex_constants::syntax_type i)
 239 {
 240    const char* ptr = get_default_syntax(i);
 241    string_type result;
 242    while(ptr && *ptr)
 243    {
 244       result.append(1, static_cast<charT>(*ptr));
 245       ++ptr;
 246    }
 247    return result;
 248 }
 249
 250 //
 251 // specialised version for narrow characters:
 252 //
 253 template <>
 254 class BOOST_REGEX_DECL w32_regex_traits_char_layer<char> : public w32_regex_traits_base<char>
 255 {
 256    typedef std::string string_type;
 257 public:
 258    w32_regex_traits_char_layer(::boost::BOOST_REGEX_DETAIL_NS::lcid_type l)
 259    : w32_regex_traits_base<char>(l)
 260    {
 261       init();
 262    }
 263
 264    regex_constants::syntax_type syntax_type(char c)const
 265    {
 266       return m_char_map[static_cast<unsigned char>(c)];
 267    }
 268    regex_constants::escape_syntax_type escape_syntax_type(char c) const
 269    {
 270       return m_char_map[static_cast<unsigned char>(c)];
 271    }
 272    char tolower(char c)const
 273    {
 274       return m_lower_map[static_cast<unsigned char>(c)];
 275    }
 276    bool isctype(boost::uint32_t mask, char c)const
 277    {
 278       return m_type_map[static_cast<unsigned char>(c)] & mask;
 279    }
 280
 281 private:
 282    regex_constants::syntax_type m_char_map[1u << CHAR_BIT];
 283    char m_lower_map[1u << CHAR_BIT];
 284    boost::uint16_t m_type_map[1u << CHAR_BIT];
 285    void init();
 286 };
 287
 288 //
 289 // class w32_regex_traits_implementation:
 290 // provides pimpl implementation for w32_regex_traits.
 291 //
 292 template <class charT>
 293 class w32_regex_traits_implementation : public w32_regex_traits_char_layer<charT>
 294 {
 295 public:
 296    typedef typename w32_regex_traits<charT>::char_class_type char_class_type;
 297    BOOST_STATIC_CONSTANT(char_class_type, mask_word = 0x0400); // must be C1_DEFINED << 1
 298    BOOST_STATIC_CONSTANT(char_class_type, mask_unicode = 0x0800); // must be C1_DEFINED << 2
 299    BOOST_STATIC_CONSTANT(char_class_type, mask_horizontal = 0x1000); // must be C1_DEFINED << 3
 300    BOOST_STATIC_CONSTANT(char_class_type, mask_vertical = 0x2000); // must be C1_DEFINED << 4
 301    BOOST_STATIC_CONSTANT(char_class_type, mask_base = 0x3ff);  // all the masks used by the CT_CTYPE1 group
 302
 303    typedef std::basic_string<charT> string_type;
 304    typedef charT char_type;
 305    w32_regex_traits_implementation(::boost::BOOST_REGEX_DETAIL_NS::lcid_type l);
 306    std::string error_string(regex_constants::error_type n) const
 307    {
 308       if(!m_error_strings.empty())
 309       {
 310          std::map<int, std::string>::const_iterator p = m_error_strings.find(n);
 311          return (p == m_error_strings.end()) ? std::string(get_default_error_string(n)) : p->second;
 312       }
 313       return get_default_error_string(n);
 314    }
 315    char_class_type lookup_classname(const charT* p1, const charT* p2) const
 316    {
 317       char_class_type result = lookup_classname_imp(p1, p2);
 318       if(result == 0)
 319       {
 320          typedef typename string_type::size_type size_type;
 321          string_type temp(p1, p2);
 322          for(size_type i = 0; i < temp.size(); ++i)
 323             temp[i] = this->tolower(temp[i]);
 324          result = lookup_classname_imp(&*temp.begin(), &*temp.begin() + temp.size());
 325       }
 326       return result;
 327    }
 328    string_type lookup_collatename(const charT* p1, const charT* p2) const;
 329    string_type transform_primary(const charT* p1, const charT* p2) const;
 330    string_type transform(const charT* p1, const charT* p2) const
 331    {
 332       return ::boost::BOOST_REGEX_DETAIL_NS::w32_transform(this->m_locale, p1, p2);
 333    }
 334 private:
 335    std::map<int, std::string>     m_error_strings;   // error messages indexed by numberic ID
 336    std::map<string_type, char_class_type>  m_custom_class_names; // character class names
 337    std::map<string_type, string_type>      m_custom_collate_names; // collating element names
 338    unsigned                       m_collate_type;    // the form of the collation string
 339    charT                          m_collate_delim;   // the collation group delimiter
 340    //
 341    // helpers:
 342    //
 343    char_class_type lookup_classname_imp(const charT* p1, const charT* p2) const;
 344 };
 345
 346 template <class charT>
 347 typename w32_regex_traits_implementation<charT>::string_type
 348    w32_regex_traits_implementation<charT>::transform_primary(const charT* p1, const charT* p2) const
 349 {
 350    string_type result;
 351    //
 352    // What we do here depends upon the format of the sort key returned by
 353    // sort key returned by this->transform:
 354    //
 355    switch(m_collate_type)
 356    {
 357    case sort_C:
 358    case sort_unknown:
 359       // the best we can do is translate to lower case, then get a regular sort key:
 360       {
 361          result.assign(p1, p2);
 362          typedef typename string_type::size_type size_type;
 363          for(size_type i = 0; i < result.size(); ++i)
 364             result[i] = this->tolower(result[i]);
 365          result = this->transform(&*result.begin(), &*result.begin() + result.size());
 366          break;
 367       }
 368    case sort_fixed:
 369       {
 370          // get a regular sort key, and then truncate it:
 371          result.assign(this->transform(p1, p2));
 372          result.erase(this->m_collate_delim);
 373          break;
 374       }
 375    case sort_delim:
 376          // get a regular sort key, and then truncate everything after the delim:
 377          result.assign(this->transform(p1, p2));
 378          std::size_t i;
 379          for(i = 0; i < result.size(); ++i)
 380          {
 381             if(result[i] == m_collate_delim)
 382                break;
 383          }
 384          result.erase(i);
 385          break;
 386    }
 387    if(result.empty())
 388       result = string_type(1, charT(0));
 389    return result;
 390 }
 391
 392 template <class charT>
 393 typename w32_regex_traits_implementation<charT>::string_type
 394    w32_regex_traits_implementation<charT>::lookup_collatename(const charT* p1, const charT* p2) const
 395 {
 396    typedef typename std::map<string_type, string_type>::const_iterator iter_type;
 397    if(m_custom_collate_names.size())
 398    {
 399       iter_type pos = m_custom_collate_names.find(string_type(p1, p2));
 400       if(pos != m_custom_collate_names.end())
 401          return pos->second;
 402    }
 403 #if !defined(BOOST_NO_TEMPLATED_ITERATOR_CONSTRUCTORS)\
 404                && !BOOST_WORKAROUND(__BORLANDC__, <= 0x0551)
 405    std::string name(p1, p2);
 406 #else
 407    std::string name;
 408    const charT* p0 = p1;
 409    while(p0 != p2)
 410       name.append(1, char(*p0++));
 411 #endif
 412    name = lookup_default_collate_name(name);
 413 #if !defined(BOOST_NO_TEMPLATED_ITERATOR_CONSTRUCTORS)\
 414                && !BOOST_WORKAROUND(__BORLANDC__, <= 0x0551)
 415    if(name.size())
 416       return string_type(name.begin(), name.end());
 417 #else
 418    if(name.size())
 419    {
 420       string_type result;
 421       typedef std::string::const_iterator iter;
 422       iter b = name.begin();
 423       iter e = name.end();
 424       while(b != e)
 425          result.append(1, charT(*b++));
 426       return result;
 427    }
 428 #endif
 429    if(p2 - p1 == 1)
 430       return string_type(1, *p1);
 431    return string_type();
 432 }
 433
 434 template <class charT>
 435 w32_regex_traits_implementation<charT>::w32_regex_traits_implementation(::boost::BOOST_REGEX_DETAIL_NS::lcid_type l)
 436 : w32_regex_traits_char_layer<charT>(l)
 437 {
 438    cat_type cat;
 439    std::string cat_name(w32_regex_traits<charT>::get_catalog_name());
 440    if(cat_name.size())
 441    {
 442       cat = ::boost::BOOST_REGEX_DETAIL_NS::w32_cat_open(cat_name);
 443       if(!cat)
 444       {
 445          std::string m("Unable to open message catalog: ");
 446          std::runtime_error err(m + cat_name);
 447          boost::BOOST_REGEX_DETAIL_NS::raise_runtime_error(err);
 448       }
 449    }
 450    //
 451    // if we have a valid catalog then load our messages:
 452    //
 453    if(cat)
 454    {
 455       //
 456       // Error messages:
 457       //
 458       for(boost::regex_constants::error_type i = static_cast<boost::regex_constants::error_type>(0);
 459          i <= boost::regex_constants::error_unknown;
 460          i = static_cast<boost::regex_constants::error_type>(i + 1))
 461       {
 462          const char* p = get_default_error_string(i);
 463          string_type default_message;
 464          while(*p)
 465          {
 466             default_message.append(1, static_cast<charT>(*p));
 467             ++p;
 468          }
 469          string_type s = ::boost::BOOST_REGEX_DETAIL_NS::w32_cat_get(cat, this->m_locale, i+200, default_message);
 470          std::string result;
 471          for(std::string::size_type j = 0; j < s.size(); ++j)
 472          {
 473             result.append(1, static_cast<char>(s[j]));
 474          }
 475          m_error_strings[i] = result;
 476       }
 477       //
 478       // Custom class names:
 479       //
 480       static const char_class_type masks[14] =
 481       {
 482          0x0104u, // C1_ALPHA | C1_DIGIT
 483          0x0100u, // C1_ALPHA
 484          0x0020u, // C1_CNTRL
 485          0x0004u, // C1_DIGIT
 486          (~(0x0020u|0x0008u) & 0x01ffu) | 0x0400u, // not C1_CNTRL or C1_SPACE
 487          0x0002u, // C1_LOWER
 488          (~0x0020u & 0x01ffu) | 0x0400, // not C1_CNTRL
 489          0x0010u, // C1_PUNCT
 490          0x0008u, // C1_SPACE
 491          0x0001u, // C1_UPPER
 492          0x0080u, // C1_XDIGIT
 493          0x0040u, // C1_BLANK
 494          w32_regex_traits_implementation<charT>::mask_word,
 495          w32_regex_traits_implementation<charT>::mask_unicode,
 496       };
 497       static const string_type null_string;
 498       for(unsigned int j = 0; j <= 13; ++j)
 499       {
 500          string_type s(::boost::BOOST_REGEX_DETAIL_NS::w32_cat_get(cat, this->m_locale, j+300, null_string));
 501          if(s.size())
 502             this->m_custom_class_names[s] = masks[j];
 503       }
 504    }
 505    //
 506    // get the collation format used by m_pcollate:
 507    //
 508    m_collate_type = BOOST_REGEX_DETAIL_NS::find_sort_syntax(this, &m_collate_delim);
 509 }
 510
 511 template <class charT>
 512 typename w32_regex_traits_implementation<charT>::char_class_type
 513    w32_regex_traits_implementation<charT>::lookup_classname_imp(const charT* p1, const charT* p2) const
 514 {
 515    static const char_class_type masks[22] =
 516    {
 517       0,
 518       0x0104u, // C1_ALPHA | C1_DIGIT
 519       0x0100u, // C1_ALPHA
 520       0x0040u, // C1_BLANK
 521       0x0020u, // C1_CNTRL
 522       0x0004u, // C1_DIGIT
 523       0x0004u, // C1_DIGIT
 524       (~(0x0020u|0x0008u|0x0040) & 0x01ffu) | 0x0400u, // not C1_CNTRL or C1_SPACE or C1_BLANK
 525       w32_regex_traits_implementation<charT>::mask_horizontal,
 526       0x0002u, // C1_LOWER
 527       0x0002u, // C1_LOWER
 528       (~0x0020u & 0x01ffu) | 0x0400, // not C1_CNTRL
 529       0x0010u, // C1_PUNCT
 530       0x0008u, // C1_SPACE
 531       0x0008u, // C1_SPACE
 532       0x0001u, // C1_UPPER
 533       w32_regex_traits_implementation<charT>::mask_unicode,
 534       0x0001u, // C1_UPPER
 535       w32_regex_traits_implementation<charT>::mask_vertical,
 536       0x0104u | w32_regex_traits_implementation<charT>::mask_word,
 537       0x0104u | w32_regex_traits_implementation<charT>::mask_word,
 538       0x0080u, // C1_XDIGIT
 539    };
 540    if(m_custom_class_names.size())
 541    {
 542       typedef typename std::map<std::basic_string<charT>, char_class_type>::const_iterator map_iter;
 543       map_iter pos = m_custom_class_names.find(string_type(p1, p2));
 544       if(pos != m_custom_class_names.end())
 545          return pos->second;
 546    }
 547    std::size_t state_id = 1 + BOOST_REGEX_DETAIL_NS::get_default_class_id(p1, p2);
 548    if(state_id < sizeof(masks) / sizeof(masks[0]))
 549       return masks[state_id];
 550    return masks[0];
 551 }
 552
 553
 554 template <class charT>
 555 boost::shared_ptr<const w32_regex_traits_implementation<charT> > create_w32_regex_traits(::boost::BOOST_REGEX_DETAIL_NS::lcid_type l)
 556 {
 557    // TODO: create a cache for previously constructed objects.
 558    return boost::object_cache< ::boost::BOOST_REGEX_DETAIL_NS::lcid_type, w32_regex_traits_implementation<charT> >::get(l, 5);
 559 }
 560
 561 } // BOOST_REGEX_DETAIL_NS
 562
 563 template <class charT>
 564 class w32_regex_traits
 565 {
 566 public:
 567    typedef charT                         char_type;
 568    typedef std::size_t                   size_type;
 569    typedef std::basic_string<char_type>  string_type;
 570    typedef ::boost::BOOST_REGEX_DETAIL_NS::lcid_type locale_type;
 571    typedef boost::uint_least32_t         char_class_type;
 572
 573    struct boost_extensions_tag{};
 574
 575    w32_regex_traits()
 576       : m_pimpl(BOOST_REGEX_DETAIL_NS::create_w32_regex_traits<charT>(::boost::BOOST_REGEX_DETAIL_NS::w32_get_default_locale()))
 577    { }
 578    static size_type length(const char_type* p)
 579    {
 580       return std::char_traits<charT>::length(p);
 581    }
 582    regex_constants::syntax_type syntax_type(charT c)const
 583    {
 584       return m_pimpl->syntax_type(c);
 585    }
 586    regex_constants::escape_syntax_type escape_syntax_type(charT c) const
 587    {
 588       return m_pimpl->escape_syntax_type(c);
 589    }
 590    charT translate(charT c) const
 591    {
 592       return c;
 593    }
 594    charT translate_nocase(charT c) const
 595    {
 596       return this->m_pimpl->tolower(c);
 597    }
 598    charT translate(charT c, bool icase) const
 599    {
 600       return icase ? this->m_pimpl->tolower(c) : c;
 601    }
 602    charT tolower(charT c) const
 603    {
 604       return this->m_pimpl->tolower(c);
 605    }
 606    charT toupper(charT c) const
 607    {
 608       return ::boost::BOOST_REGEX_DETAIL_NS::w32_toupper(c, this->m_pimpl->m_locale);
 609    }
 610    string_type transform(const charT* p1, const charT* p2) const
 611    {
 612       return ::boost::BOOST_REGEX_DETAIL_NS::w32_transform(this->m_pimpl->m_locale, p1, p2);
 613    }
 614    string_type transform_primary(const charT* p1, const charT* p2) const
 615    {
 616       return m_pimpl->transform_primary(p1, p2);
 617    }
 618    char_class_type lookup_classname(const charT* p1, const charT* p2) const
 619    {
 620       return m_pimpl->lookup_classname(p1, p2);
 621    }
 622    string_type lookup_collatename(const charT* p1, const charT* p2) const
 623    {
 624       return m_pimpl->lookup_collatename(p1, p2);
 625    }
 626    bool isctype(charT c, char_class_type f) const
 627    {
 628       if((f & BOOST_REGEX_DETAIL_NS::w32_regex_traits_implementation<charT>::mask_base)
 629          && (this->m_pimpl->isctype(f & BOOST_REGEX_DETAIL_NS::w32_regex_traits_implementation<charT>::mask_base, c)))
 630          return true;
 631       else if((f & BOOST_REGEX_DETAIL_NS::w32_regex_traits_implementation<charT>::mask_unicode) && BOOST_REGEX_DETAIL_NS::is_extended(c))
 632          return true;
 633       else if((f & BOOST_REGEX_DETAIL_NS::w32_regex_traits_implementation<charT>::mask_word) && (c == '_'))
 634          return true;
 635       else if((f & BOOST_REGEX_DETAIL_NS::w32_regex_traits_implementation<charT>::mask_vertical)
 636          && (::boost::BOOST_REGEX_DETAIL_NS::is_separator(c) || (c == '\v')))
 637          return true;
 638       else if((f & BOOST_REGEX_DETAIL_NS::w32_regex_traits_implementation<charT>::mask_horizontal)
 639          && this->isctype(c, 0x0008u) && !this->isctype(c, BOOST_REGEX_DETAIL_NS::w32_regex_traits_implementation<charT>::mask_vertical))
 640          return true;
 641       return false;
 642    }
 643    boost::intmax_t toi(const charT*& p1, const charT* p2, int radix)const
 644    {
 645       return ::boost::BOOST_REGEX_DETAIL_NS::global_toi(p1, p2, radix, *this);
 646    }
 647    int value(charT c, int radix)const
 648    {
 649       int result = (int)::boost::BOOST_REGEX_DETAIL_NS::global_value(c);
 650       return result < radix ? result : -1;
 651    }
 652    locale_type imbue(locale_type l)
 653    {
 654       ::boost::BOOST_REGEX_DETAIL_NS::lcid_type result(getloc());
 655       m_pimpl = BOOST_REGEX_DETAIL_NS::create_w32_regex_traits<charT>(l);
 656       return result;
 657    }
 658    locale_type getloc()const
 659    {
 660       return m_pimpl->m_locale;
 661    }
 662    std::string error_string(regex_constants::error_type n) const
 663    {
 664       return m_pimpl->error_string(n);
 665    }
 666
 667    //
 668    // extension:
 669    // set the name of the message catalog in use (defaults to "boost_regex").
 670    //
 671    static std::string catalog_name(const std::string& name);
 672    static std::string get_catalog_name();
 673
 674 private:
 675    boost::shared_ptr<const BOOST_REGEX_DETAIL_NS::w32_regex_traits_implementation<charT> > m_pimpl;
 676    //
 677    // catalog name handler:
 678    //
 679    static std::string& get_catalog_name_inst();
 680
 681 #ifdef BOOST_HAS_THREADS
 682    static static_mutex& get_mutex_inst();
 683 #endif
 684 };
 685
 686 template <class charT>
 687 std::string w32_regex_traits<charT>::catalog_name(const std::string& name)
 688 {
 689 #ifdef BOOST_HAS_THREADS
 690    static_mutex::scoped_lock lk(get_mutex_inst());
 691 #endif
 692    std::string result(get_catalog_name_inst());
 693    get_catalog_name_inst() = name;
 694    return result;
 695 }
 696
 697 template <class charT>
 698 std::string& w32_regex_traits<charT>::get_catalog_name_inst()
 699 {
 700    static std::string s_name;
 701    return s_name;
 702 }
 703
 704 template <class charT>
 705 std::string w32_regex_traits<charT>::get_catalog_name()
 706 {
 707 #ifdef BOOST_HAS_THREADS
 708    static_mutex::scoped_lock lk(get_mutex_inst());
 709 #endif
 710    std::string result(get_catalog_name_inst());
 711    return result;
 712 }
 713
 714 #ifdef BOOST_HAS_THREADS
 715 template <class charT>
 716 static_mutex& w32_regex_traits<charT>::get_mutex_inst()
 717 {
 718    static static_mutex s_mutex = BOOST_STATIC_MUTEX_INIT;
 719    return s_mutex;
 720 }
 721 #endif
 722
 723
 724 } // boost
 725
 726 #ifdef BOOST_MSVC
 727 #pragma warning(pop)
 728 #endif
 729
 730 #ifdef BOOST_MSVC
 731 #pragma warning(push)
 732 #pragma warning(disable: 4103)
 733 #endif
 734 #ifdef BOOST_HAS_ABI_HEADERS
 735 #  include BOOST_ABI_SUFFIX
 736 #endif
 737 #ifdef BOOST_MSVC
 738 #pragma warning(pop)
 739 #endif
 740
 741 #endif // BOOST_REGEX_NO_WIN32_LOCALE
 742
 743 #endif