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00047 #ifndef WINSTL_INCL_WINSTL_FILESYSTEM_HPP_PATH_FUNCTIONS
00048 #define WINSTL_INCL_WINSTL_FILESYSTEM_HPP_PATH_FUNCTIONS
00049
00050 #ifndef STLSOFT_DOCUMENTATION_SKIP_SECTION
00051 # define WINSTL_VER_WINSTL_FILESYSTEM_HPP_PATH_FUNCTIONS_MAJOR 1
00052 # define WINSTL_VER_WINSTL_FILESYSTEM_HPP_PATH_FUNCTIONS_MINOR 1
00053 # define WINSTL_VER_WINSTL_FILESYSTEM_HPP_PATH_FUNCTIONS_REVISION 3
00054 # define WINSTL_VER_WINSTL_FILESYSTEM_HPP_PATH_FUNCTIONS_EDIT 17
00055 #endif
00056
00057
00058
00059
00060
00061 #ifndef WINSTL_INCL_WINSTL_H_WINSTL
00062 # include <winstl/winstl.h>
00063 #endif
00064
00065 #ifndef WINSTL_INCL_WINSTL_FILESYSTEM_HPP_FILESYSTEM_TRAITS
00066 # include <winstl/filesystem/filesystem_traits.hpp>
00067 #endif
00068 #ifndef WINSTL_INCL_WINSTL_FILESYSTEM_HPP_PATH
00069 # include <winstl/filesystem/path.hpp>
00070 #endif
00071 #ifndef STLSOFT_INCL_STLSOFT_SHIMS_ACCESS_HPP_STRING
00072 # include <stlsoft/shims/access/string.hpp>
00073 #endif
00074
00075 #ifdef STLSOFT_UNITTEST
00076 #endif // STLSOFT_UNITTEST
00077
00078
00079
00080
00081
00082 #ifndef _WINSTL_NO_NAMESPACE
00083 # if defined(_STLSOFT_NO_NAMESPACE) || \
00084 defined(STLSOFT_DOCUMENTATION_SKIP_SECTION)
00085
00086 namespace winstl
00087 {
00088 # else
00089
00090
00091 namespace stlsoft
00092 {
00093
00094 namespace winstl_project
00095 {
00096
00097 # endif
00098 #endif
00099
00100
00101
00102
00103
00104 #ifndef STLSOFT_DOCUMENTATION_SKIP_SECTION
00105
00106 template <ss_typename_param_k C>
00107 ws_size_t path_squeeze_impl(
00108 C const* path
00109 , ws_size_t pathLen
00110 , C* buffer
00111 , ws_size_t cchBuffer
00112 )
00113 {
00114 typedef C char_t;
00115 typedef filesystem_traits<C> traits_t;
00116 typedef ws_size_t size_t;
00117
00118 if(NULL == buffer)
00119 {
00120 cchBuffer = pathLen + 1u;
00121 }
00122 else if(0 != cchBuffer)
00123 {
00124 basic_path<char_t> p(path, pathLen);
00125 char_t const* file_ptr = p.get_file();
00126 char_t const* path_ptr = p.c_str();
00127 const size_t fileLen = p.size() - (file_ptr - path_ptr);
00128
00129 if(cchBuffer > pathLen)
00130 {
00131
00132
00133 traits_t::char_copy(buffer, path_ptr, pathLen);
00134 buffer[pathLen] = '\0';
00135
00136 cchBuffer = pathLen + 1u;
00137 }
00138 else
00139 {
00140 size_t rootLen;
00141
00142
00143
00144
00145
00146
00147
00148
00149 if(p.is_rooted())
00150 {
00151 if(p.is_absolute())
00152 {
00153 if(traits_t::is_path_UNC(path_ptr))
00154 {
00155
00156
00157 char_t const* p1 = traits_t::str_chr(path_ptr + 2, '\\');
00158
00159 if(NULL == p1)
00160 {
00161
00162 rootLen = 0;
00163 }
00164 else
00165 {
00166 rootLen = 1 + static_cast<size_t>(p1 - path_ptr);
00167 }
00168 }
00169 else
00170 {
00171
00172 rootLen = 3;
00173 }
00174 }
00175 else
00176 {
00177
00178 rootLen = 1;
00179 }
00180 }
00181 else
00182 {
00183
00184 rootLen = 0;
00185 }
00186
00187 if(cchBuffer < 5 + 1)
00188 {
00189 traits_t::char_copy(buffer, file_ptr, cchBuffer - 1);
00190 buffer[cchBuffer - 1] = '\0';
00191
00192 if(cchBuffer > fileLen)
00193 {
00194 cchBuffer = fileLen + 1;
00195 }
00196 }
00197 else if(cchBuffer < fileLen + 1)
00198 {
00199
00200 size_t leftLen = (cchBuffer - 3 - 1) / 2;
00201 size_t rightLen = (cchBuffer - 3 - 1) - leftLen;
00202
00203 traits_t::char_copy(buffer, file_ptr, leftLen);
00204 buffer[leftLen + 0] = '.';
00205 buffer[leftLen + 1] = '.';
00206 buffer[leftLen + 2] = '.';
00207 traits_t::char_copy(buffer + leftLen + 3, file_ptr + (fileLen - rightLen), rightLen);
00208 buffer[leftLen + 3 + rightLen] = '\0';
00209 }
00210 else if(cchBuffer < rootLen + 3 + 1 + fileLen + 1)
00211 {
00212
00213
00214 traits_t::char_copy(buffer, file_ptr, fileLen);
00215 buffer[fileLen] = '\0';
00216
00217 if(cchBuffer > fileLen)
00218 {
00219 cchBuffer = fileLen + 1;
00220 }
00221 }
00222 else
00223 {
00224 WINSTL_ASSERT(cchBuffer < pathLen + 1);
00225
00226
00227 size_t rightLen = 1 + fileLen;
00228 size_t leftLen = (cchBuffer - 3 - 1) - rightLen;
00229
00230 traits_t::char_copy(buffer, path_ptr, leftLen);
00231 buffer[leftLen + 0] = '.';
00232 buffer[leftLen + 1] = '.';
00233 buffer[leftLen + 2] = '.';
00234 traits_t::char_copy(buffer + leftLen + 3, file_ptr - 1, rightLen);
00235 buffer[leftLen + 3 + rightLen] = '\0';
00236 }
00237 }
00238 }
00239
00240 return cchBuffer;
00241 }
00242
00243 template<ss_typename_param_k S>
00244 ws_size_t path_squeeze_impl2(S const& path, ws_char_a_t* buffer, ws_size_t cchBuffer)
00245 {
00246 return path_squeeze_impl(stlsoft_ns_qual(c_str_ptr_a)(path), stlsoft_ns_qual(c_str_len)(path), buffer, cchBuffer);
00247 }
00248
00249 template<ss_typename_param_k S>
00250 ws_size_t path_squeeze_impl2(S const& path, ws_char_w_t* buffer, ws_size_t cchBuffer)
00251 {
00252 return path_squeeze_impl(stlsoft_ns_qual(c_str_ptr_w)(path), stlsoft_ns_qual(c_str_len)(path), buffer, cchBuffer);
00253 }
00254
00255 #endif
00256
00257 #if 0
00258 template <ss_typename_param_k C>
00259 ws_size_t path_squeeze(C const* path, C* buffer, ws_size_t cchBuffer)
00260 {
00261 typedef filesystem_traits<C> traits_t;
00262
00263 return path_squeeze_impl(path, traits_t::str_len(path), buffer, cchBuffer);
00264 }
00265 #endif
00266
00267
00268
00269
00270
00293 template< ss_typename_param_k S
00294 , ss_typename_param_k C
00295 >
00296 ws_size_t path_squeeze(S const& path, C* buffer, ws_size_t cchBuffer)
00297 {
00298 return path_squeeze_impl2(path, buffer, cchBuffer);
00299 }
00300
00301
00302
00303
00304
00305 #ifdef STLSOFT_UNITTEST
00306 # include "./unittest/path_functions_unittest_.h"
00307 #endif
00308
00309
00310
00311 #ifndef _WINSTL_NO_NAMESPACE
00312 # if defined(_STLSOFT_NO_NAMESPACE) || \
00313 defined(STLSOFT_DOCUMENTATION_SKIP_SECTION)
00314 }
00315 # else
00316 }
00317 }
00318 # endif
00319
00320 #endif
00321
00322
00323
00324 #endif
00325
00326