ceph/src/boost/libs/regex/src/wc_regex_traits.cpp

   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:        wc_regex_traits.cpp
  15   *   VERSION:     see <boost/version.hpp>
  16   *   DESCRIPTION: Implements out of line members for c_regex_traits<wchar_t>
  17   */
  18
  19
  20 #define BOOST_REGEX_SOURCE
  21
  22 #include <boost/detail/workaround.hpp>
  23 #include <memory>
  24 #include <string>
  25 #include "internals.hpp"
  26
  27 #if defined(_DLL_CPPLIB) && !defined(_M_CEE_PURE) && defined(_NATIVE_WCHAR_T_DEFINED) \
  28    && !(defined(__SGI_STL_PORT) || defined(_STLPORT_VERSION) || defined(__STD_RWCOMPILER_H__) || defined(_RWSTD_VER))\
  29    && BOOST_WORKAROUND(BOOST_MSVC, <1600)
  30 //
  31 // This is a horrible workaround, but without declaring these symbols extern we get
  32 // duplicate symbol errors when linking if the application is built without
  33 // /Zc:wchar_t
  34 //
  35 #ifdef _CRTIMP2_PURE
  36 #  define BOOST_REGEX_STDLIB_DECL _CRTIMP2_PURE
  37 #else
  38 #  define BOOST_REGEX_STDLIB_DECL _CRTIMP2
  39 #endif
  40
  41 namespace std{
  42
  43 #if BOOST_WORKAROUND(BOOST_MSVC, >= 1400)
  44 template class BOOST_REGEX_STDLIB_DECL allocator<unsigned short>;
  45 template class BOOST_REGEX_STDLIB_DECL _String_val<unsigned short, allocator<unsigned short> >;
  46 template class BOOST_REGEX_STDLIB_DECL basic_string<unsigned short, char_traits<unsigned short>, allocator<unsigned short> >;
  47 #endif
  48
  49 #if BOOST_WORKAROUND(BOOST_MSVC, > 1300) && BOOST_WORKAROUND(BOOST_MSVC, BOOST_TESTED_AT(1400))
  50 template<> BOOST_REGEX_STDLIB_DECL std::size_t __cdecl char_traits<unsigned short>::length(unsigned short const*);
  51 #endif
  52
  53 template BOOST_REGEX_STDLIB_DECL bool __cdecl operator==(
  54    const basic_string<unsigned short, char_traits<unsigned short>, allocator<unsigned short> >&,
  55    const basic_string<unsigned short, char_traits<unsigned short>, allocator<unsigned short> >&);
  56 template BOOST_REGEX_STDLIB_DECL bool __cdecl operator==(
  57    const unsigned short *,
  58    const basic_string<unsigned short, char_traits<unsigned short>, allocator<unsigned short> >&);
  59 template BOOST_REGEX_STDLIB_DECL bool __cdecl operator==(
  60    const basic_string<unsigned short, char_traits<unsigned short>, allocator<unsigned short> >&,
  61    const unsigned short *);
  62 template BOOST_REGEX_STDLIB_DECL bool __cdecl operator<(
  63    const basic_string<unsigned short, char_traits<unsigned short>, allocator<unsigned short> >&,
  64    const basic_string<unsigned short, char_traits<unsigned short>, allocator<unsigned short> >&);
  65 template BOOST_REGEX_STDLIB_DECL bool __cdecl operator>(
  66    const basic_string<unsigned short, char_traits<unsigned short>, allocator<unsigned short> >&,
  67    const basic_string<unsigned short, char_traits<unsigned short>, allocator<unsigned short> >&);
  68 }
  69 #endif
  70
  71 #include <boost/regex/config.hpp>
  72 #include <boost/detail/workaround.hpp>
  73
  74 #if !BOOST_WORKAROUND(__BORLANDC__, < 0x560)
  75
  76 #include <boost/regex/v4/c_regex_traits.hpp>
  77 #ifndef BOOST_NO_WREGEX
  78 #include <boost/regex/v4/primary_transform.hpp>
  79 #include <boost/regex/v4/regex_traits_defaults.hpp>
  80
  81 #if defined(BOOST_NO_STDC_NAMESPACE)
  82 namespace std{
  83    using ::wcstol;
  84 }
  85 #endif
  86
  87 namespace boost{
  88
  89 c_regex_traits<wchar_t>::string_type BOOST_REGEX_CALL c_regex_traits<wchar_t>::transform(const wchar_t* p1, const wchar_t* p2)
  90 {
  91    std::size_t r;
  92    std::size_t s = 10;
  93    std::wstring src(p1, p2);
  94    std::wstring result(s, L' ');
  95    while(s < (r = std::wcsxfrm(&*result.begin(), src.c_str(), s)))
  96    {
  97 #if defined(_CPPLIB_VER)
  98       //
  99       // A bug in VC11 and 12 causes the program to hang if we pass a null-string
 100       // to std::strxfrm, but only for certain locales :-(
 101       // Probably effects Intel and Clang or any compiler using the VC std library (Dinkumware).
 102       //
 103       if(r == INT_MAX)
 104       {
 105          result.erase();
 106          result.insert(result.begin(), static_cast<wchar_t>(0));
 107          return result;
 108       }
 109 #endif
 110       result.append(r - s + 3, L' ');
 111       s = result.size();
 112    }
 113    result.erase(r);
 114    return result;
 115 }
 116
 117 c_regex_traits<wchar_t>::string_type BOOST_REGEX_CALL c_regex_traits<wchar_t>::transform_primary(const wchar_t* p1, const wchar_t* p2)
 118 {
 119    static wchar_t s_delim;
 120    static const int s_collate_type = ::boost::BOOST_REGEX_DETAIL_NS::find_sort_syntax(static_cast<const c_regex_traits<wchar_t>*>(0), &s_delim);
 121    std::wstring result;
 122    //
 123    // What we do here depends upon the format of the sort key returned by
 124    // sort key returned by this->transform:
 125    //
 126    switch(s_collate_type)
 127    {
 128    case ::boost::BOOST_REGEX_DETAIL_NS::sort_C:
 129    case ::boost::BOOST_REGEX_DETAIL_NS::sort_unknown:
 130       // the best we can do is translate to lower case, then get a regular sort key:
 131       {
 132          result.assign(p1, p2);
 133          for(std::wstring::size_type i = 0; i < result.size(); ++i)
 134             result[i] = (std::towlower)(result[i]);
 135          result = c_regex_traits<wchar_t>::transform(&*result.begin(), &*result.begin() + result.size());
 136          break;
 137       }
 138    case ::boost::BOOST_REGEX_DETAIL_NS::sort_fixed:
 139       {
 140          // get a regular sort key, and then truncate it:
 141          result = c_regex_traits<wchar_t>::transform(&*result.begin(), &*result.begin() + result.size());
 142          result.erase(s_delim);
 143          break;
 144       }
 145    case ::boost::BOOST_REGEX_DETAIL_NS::sort_delim:
 146          // get a regular sort key, and then truncate everything after the delim:
 147          result = c_regex_traits<wchar_t>::transform(&*result.begin(), &*result.begin() + result.size());
 148          if(result.size() && (result[0] == s_delim))
 149             break;
 150          std::size_t i;
 151          for(i = 0; i < result.size(); ++i)
 152          {
 153             if(result[i] == s_delim)
 154                break;
 155          }
 156          result.erase(i);
 157          break;
 158    }
 159    if(result.empty())
 160       result = std::wstring(1, char(0));
 161    return result;
 162 }
 163
 164 c_regex_traits<wchar_t>::char_class_type BOOST_REGEX_CALL c_regex_traits<wchar_t>::lookup_classname(const wchar_t* p1, const wchar_t* p2)
 165 {
 166    static const char_class_type masks[] =
 167    {
 168       0,
 169       char_class_alnum,
 170       char_class_alpha,
 171       char_class_blank,
 172       char_class_cntrl,
 173       char_class_digit,
 174       char_class_digit,
 175       char_class_graph,
 176       char_class_horizontal,
 177       char_class_lower,
 178       char_class_lower,
 179       char_class_print,
 180       char_class_punct,
 181       char_class_space,
 182       char_class_space,
 183       char_class_upper,
 184       char_class_unicode,
 185       char_class_upper,
 186       char_class_vertical,
 187       char_class_alnum | char_class_word,
 188       char_class_alnum | char_class_word,
 189       char_class_xdigit,
 190    };
 191
 192    int idx = ::boost::BOOST_REGEX_DETAIL_NS::get_default_class_id(p1, p2);
 193    if(idx < 0)
 194    {
 195       std::wstring s(p1, p2);
 196       for(std::wstring::size_type i = 0; i < s.size(); ++i)
 197          s[i] = (std::towlower)(s[i]);
 198       idx = ::boost::BOOST_REGEX_DETAIL_NS::get_default_class_id(&*s.begin(), &*s.begin() + s.size());
 199    }
 200    BOOST_ASSERT(idx+1 < static_cast<int>(sizeof(masks) / sizeof(masks[0])));
 201    return masks[idx+1];
 202 }
 203
 204 bool BOOST_REGEX_CALL c_regex_traits<wchar_t>::isctype(wchar_t c, char_class_type mask)
 205 {
 206    return
 207       ((mask & char_class_space) && (std::iswspace)(c))
 208       || ((mask & char_class_print) && (std::iswprint)(c))
 209       || ((mask & char_class_cntrl) && (std::iswcntrl)(c))
 210       || ((mask & char_class_upper) && (std::iswupper)(c))
 211       || ((mask & char_class_lower) && (std::iswlower)(c))
 212       || ((mask & char_class_alpha) && (std::iswalpha)(c))
 213       || ((mask & char_class_digit) && (std::iswdigit)(c))
 214       || ((mask & char_class_punct) && (std::iswpunct)(c))
 215       || ((mask & char_class_xdigit) && (std::iswxdigit)(c))
 216       || ((mask & char_class_blank) && (std::iswspace)(c) && !::boost::BOOST_REGEX_DETAIL_NS::is_separator(c))
 217       || ((mask & char_class_word) && (c == '_'))
 218       || ((mask & char_class_unicode) && (c & ~static_cast<wchar_t>(0xff)))
 219       || ((mask & char_class_vertical) && (::boost::BOOST_REGEX_DETAIL_NS::is_separator(c) || (c == L'\v')))
 220       || ((mask & char_class_horizontal) && (std::iswspace)(c) && !::boost::BOOST_REGEX_DETAIL_NS::is_separator(c) && (c != L'\v'));
 221 }
 222
 223 c_regex_traits<wchar_t>::string_type BOOST_REGEX_CALL c_regex_traits<wchar_t>::lookup_collatename(const wchar_t* p1, const wchar_t* p2)
 224 {
 225 #if !defined(BOOST_NO_TEMPLATED_ITERATOR_CONSTRUCTORS)\
 226                && !BOOST_WORKAROUND(BOOST_MSVC, < 1300)\
 227                && !BOOST_WORKAROUND(__BORLANDC__, <= 0x0551)
 228    std::string name(p1, p2);
 229 #else
 230    std::string name;
 231    const wchar_t* p0 = p1;
 232    while(p0 != p2)
 233       name.append(1, char(*p0++));
 234 #endif
 235    name = ::boost::BOOST_REGEX_DETAIL_NS::lookup_default_collate_name(name);
 236 #if !defined(BOOST_NO_TEMPLATED_ITERATOR_CONSTRUCTORS)\
 237                && !BOOST_WORKAROUND(BOOST_MSVC, < 1300)\
 238                && !BOOST_WORKAROUND(__BORLANDC__, <= 0x0551)
 239    if(name.size())
 240       return string_type(name.begin(), name.end());
 241 #else
 242    if(name.size())
 243    {
 244       string_type result;
 245       typedef std::string::const_iterator iter;
 246       iter b = name.begin();
 247       iter e = name.end();
 248       while(b != e)
 249          result.append(1, wchar_t(*b++));
 250       return result;
 251    }
 252 #endif
 253    if(p2 - p1 == 1)
 254       return string_type(1, *p1);
 255    return string_type();
 256 }
 257
 258 int BOOST_REGEX_CALL c_regex_traits<wchar_t>::value(wchar_t c, int radix)
 259 {
 260 #ifdef __BORLANDC__
 261    // workaround for broken wcstol:
 262    if((std::iswxdigit)(c) == 0)
 263       return -1;
 264 #endif
 265    wchar_t b[2] = { c, '\0', };
 266    wchar_t* ep;
 267    int result = std::wcstol(b, &ep, radix);
 268    if(ep == b)
 269       return -1;
 270    return result;
 271 }
 272
 273 #ifdef BOOST_REGEX_HAS_OTHER_WCHAR_T
 274 c_regex_traits<unsigned short>::string_type BOOST_REGEX_CALL c_regex_traits<unsigned short>::transform(const unsigned short* p1, const unsigned short* p2)
 275 {
 276    std::wstring result = c_regex_traits<wchar_t>::transform((const wchar_t*)p1, (const wchar_t*)p2);
 277    return string_type(result.begin(), result.end());
 278 }
 279
 280 c_regex_traits<unsigned short>::string_type BOOST_REGEX_CALL c_regex_traits<unsigned short>::transform_primary(const unsigned short* p1, const unsigned short* p2)
 281 {
 282    std::wstring result = c_regex_traits<wchar_t>::transform_primary((const wchar_t*)p1, (const wchar_t*)p2);
 283    return string_type(result.begin(), result.end());
 284 }
 285
 286 c_regex_traits<unsigned short>::char_class_type BOOST_REGEX_CALL c_regex_traits<unsigned short>::lookup_classname(const unsigned short* p1, const unsigned short* p2)
 287 {
 288    return c_regex_traits<wchar_t>::lookup_classname((const wchar_t*)p1, (const wchar_t*)p2);
 289 }
 290
 291 c_regex_traits<unsigned short>::string_type BOOST_REGEX_CALL c_regex_traits<unsigned short>::lookup_collatename(const unsigned short* p1, const unsigned short* p2)
 292 {
 293    std::wstring result = c_regex_traits<wchar_t>::lookup_collatename((const wchar_t*)p1, (const wchar_t*)p2);
 294    return string_type(result.begin(), result.end());
 295 }
 296
 297 bool BOOST_REGEX_CALL c_regex_traits<unsigned short>::isctype(unsigned short c, char_class_type m)
 298 {
 299    return c_regex_traits<wchar_t>::isctype(c, m);
 300 }
 301
 302 int BOOST_REGEX_CALL c_regex_traits<unsigned short>::value(unsigned short c, int radix)
 303 {
 304    return c_regex_traits<wchar_t>::value(c, radix);
 305 }
 306
 307 #endif
 308
 309 }
 310
 311 #endif // BOOST_NO_WREGEX
 312
 313 #endif // __BORLANDC__
 314