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00047 #ifndef WINSTL_INCL_WINSTL_FILESYSTEM_HPP_FILE_FUNCTIONS
00048 #define WINSTL_INCL_WINSTL_FILESYSTEM_HPP_FILE_FUNCTIONS
00049
00050 #ifndef STLSOFT_DOCUMENTATION_SKIP_SECTION
00051 # define WINSTL_VER_WINSTL_FILESYSTEM_HPP_FILE_FUNCTIONS_MAJOR 2
00052 # define WINSTL_VER_WINSTL_FILESYSTEM_HPP_FILE_FUNCTIONS_MINOR 3
00053 # define WINSTL_VER_WINSTL_FILESYSTEM_HPP_FILE_FUNCTIONS_REVISION 8
00054 # define WINSTL_VER_WINSTL_FILESYSTEM_HPP_FILE_FUNCTIONS_EDIT 52
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_ERROR_HPP_WINDOWS_EXCEPTIONS
00069 # include <winstl/error/exceptions.hpp>
00070 #endif
00071 #ifndef WINSTL_INCL_WINSTL_MEMORY_HPP_PROCESSHEAP_ALLOCATOR
00072 # include <winstl/memory/processheap_allocator.hpp>
00073 #endif
00074 #ifndef STLSOFT_INCL_STLSOFT_MEMORY_HPP_AUTO_BUFFER
00075 # include <stlsoft/memory/auto_buffer.hpp>
00076 #endif
00077 #ifndef STLSOFT_INCL_STLSOFT_SHIMS_ACCESS_HPP_STRING
00078 # include <stlsoft/shims/access/string.hpp>
00079 #endif
00080 #ifndef STLSOFT_INCL_STLSOFT_SMARTPTR_HPP_SCOPED_HANDLE
00081 # include <stlsoft/smartptr/scoped_handle.hpp>
00082 #endif
00083 #ifndef STLSOFT_INCL_STLSOFT_STRING_HPP_STRING_TRAITS
00084 # include <stlsoft/string/string_traits.hpp>
00085 #endif
00086 #ifndef STLSOFT_INCL_STLSOFT_STRING_HPP_TOKENISER_FUNCTIONS
00087 # include <stlsoft/string/tokeniser_functions.hpp>
00088 #endif
00089
00090 #ifdef STLSOFT_UNITTEST
00091 # include <stlsoft/string/simple_string.hpp>
00092 #endif // STLSOFT_UNITTEST
00093
00094
00095
00096
00097
00098 #ifndef _WINSTL_NO_NAMESPACE
00099 # if defined(_STLSOFT_NO_NAMESPACE) || \
00100 defined(STLSOFT_DOCUMENTATION_SKIP_SECTION)
00101
00102 namespace winstl
00103 {
00104 # else
00105
00106
00107 namespace stlsoft
00108 {
00109
00110 namespace winstl_project
00111 {
00112
00113 # endif
00114 #endif
00115
00116
00117
00118
00119
00120 #ifndef STLSOFT_DOCUMENTATION_SKIP_SECTION
00121 template< ss_typename_param_k S1
00122 , ss_typename_param_k S2
00123 >
00124 inline ws_uint64_t load_text_file_impl(S1 const& fileName, S2 &contents);
00125 #endif
00126
00167 template< ss_typename_param_k S1
00168 , ss_typename_param_k S2
00169 >
00170 inline ws_uint64_t load_text_file(S1 const& fileName, S2 &contents)
00171 {
00172 return load_text_file_impl<S1, S2>(fileName, contents);
00173 }
00174
00175 #ifndef STLSOFT_DOCUMENTATION_SKIP_SECTION
00176 template< ss_typename_param_k S1
00177 , ss_typename_param_k S2
00178 >
00179 inline ws_uint64_t load_text_file_impl(S1 const& fileName, S2 &contents)
00180 {
00181 typedef string_traits<S1> string_traits_t;
00182
00183 STLSOFT_STATIC_ASSERT(sizeof(string_traits_t));
00184
00185 typedef string_traits<S2> string_traits2_t;
00186
00187 STLSOFT_STATIC_ASSERT(sizeof(string_traits2_t));
00188
00189 typedef ss_typename_type_k string_traits_t::char_type C;
00190
00191 STLSOFT_STATIC_ASSERT(sizeof(C));
00192
00193 typedef ss_typename_type_k string_traits2_t::char_type char_2_type;
00194
00195 STLSOFT_STATIC_ASSERT(sizeof(char_2_type));
00196
00197 typedef filesystem_traits<C> filesys_traits_t;
00198
00199 STLSOFT_STATIC_ASSERT(sizeof(filesys_traits_t));
00200
00201 scoped_handle<HANDLE> h( filesys_traits_t::create_file( stlsoft_ns_qual(c_str_ptr)(fileName)
00202 , GENERIC_READ
00203 , FILE_SHARE_READ
00204 , NULL
00205 , OPEN_EXISTING
00206 , 0
00207 , NULL)
00208 , (void (STLSOFT_CDECL *)(HANDLE))&filesys_traits_t::close_handle
00209 , INVALID_HANDLE_VALUE);
00210
00211 if(INVALID_HANDLE_VALUE == h.get())
00212 {
00213 STLSOFT_THROW_X(windows_exception("File does not exist", ::GetLastError()));
00214 }
00215
00216 ws_uint64_t size = filesys_traits_t::get_file_size(h.get());
00217
00218 if( 0 != size &&
00219 static_cast<ws_uint64_t>(~0) != size)
00220 {
00221 if(size > 0xFFFFFFFF)
00222 {
00223 STLSOFT_THROW_X(winstl_ns_qual_std(out_of_range)("Cannot read in files larger than 4GB"));
00224 }
00225 else
00226 {
00227
00228
00229 typedef ::stlsoft::auto_buffer_old< char_2_type
00230 , processheap_allocator<char_2_type>
00231 , 1024
00232 > buffer_t;
00233
00234 buffer_t buffer(static_cast<ss_typename_type_k buffer_t::size_type>(size));
00235 DWORD dw;
00236
00237 if(!::ReadFile(h.get(), &buffer[0], buffer.size(), &dw, NULL))
00238 {
00239 STLSOFT_THROW_X(windows_exception("Read operation failed", ::GetLastError()));
00240 }
00241 else
00242 {
00243 contents.assign(&buffer[0], dw);
00244
00245 return size;
00246 }
00247 }
00248 }
00249
00250 return 0;
00251 }
00252
00253 #if !defined(STLSOFT_COMPILER_IS_DMC) && \
00254 !defined(STLSOFT_COMPILER_IS_MWERKS) && \
00255 ( !defined(STLSOFT_COMPILER_IS_MSVC) || \
00256 _MSC_VER != 1300)
00257
00258 template< ss_typename_param_k S2
00259 >
00260 inline ws_uint64_t load_text_file(ws_char_a_t const* fileName, S2 &contents)
00261 {
00262 return load_text_file_impl<ws_char_a_t const*, S2>(fileName, contents);
00263 }
00264
00265 template< ss_typename_param_k S2
00266 >
00267 inline ws_uint64_t load_text_file(ws_char_w_t const* fileName, S2 &contents)
00268 {
00269 return load_text_file_impl<ws_char_w_t const*, S2>(fileName, contents);
00270 }
00271
00272 #if 0
00273 template< ss_typename_param_k S2
00274 >
00275 inline ws_uint64_t load_text_file(char fileName[], S2 &contents)
00276 {
00277 return load_text_file_impl<ws_char_a_t const*, S2>(fileName, contents);
00278 }
00279
00280 template< ss_typename_param_k S2
00281 >
00282 inline ws_uint64_t load_text_file(ws_char_w_t *fileName, S2 &contents)
00283 {
00284 return load_text_file_impl<ws_char_w_t const*, S2>(fileName, contents);
00285 }
00286 #endif
00287
00288 #endif
00289
00290 #endif
00291
00292
00293
00294
00295
00296
00297
00298
00299
00300
00301
00302
00303
00304
00305
00306
00307
00308 #if 0
00309 template< ss_typename_param_k S
00310 >
00311 struct trim_trailing_carriage_return
00312 {
00313 public:
00314 S operator ()(S const& s)
00315 {
00316 ss_size_t len = stlsoft_ns_qual(c_str_len)(s);
00317
00318 if( len > 0 &&
00319 '\r' == s[len])
00320 {
00321 return s;
00322 }
00323
00324 return S(stlsoft_ns_qual(c_str_ptr)(s), len - 1);
00325 }
00326 };
00327 #endif
00328
00329 template< ss_typename_param_k CH
00330 , ss_typename_param_k C
00331 >
00332 void readlines_impl(CH const* p, ss_size_t len, C &container)
00333 {
00334 typedef CH char_t;
00335 typedef ss_typename_type_k C::value_type value_t;
00336
00337 char_t const* p0 = p;
00338 char_t const* p1 = p0;
00339 char_t const* end = p + len;
00340
00341 while(end != stlsoft_ns_qual(find_next_token)(p0, p1, end, static_cast<char_t>('\n')))
00342 {
00343 if( p1 > p0 &&
00344 '\r' == p1[-1])
00345 {
00346 --p1;
00347 }
00348
00349 container.push_back(value_t(p0, static_cast<ws_size_t>(p1 - p0)));
00350
00351 if('\r' == *p1)
00352 {
00353 ++p1;
00354 }
00355 }
00356 }
00357
00402 template< ss_typename_param_k S
00403 , ss_typename_param_k C
00404 >
00405 C &readlines(S const& fileName, C &container)
00406 {
00407 S contents;
00408 S delim;
00409
00410
00411 delim.append(1, '\n');
00412
00413 load_text_file(fileName, contents);
00414
00415 #if 0
00416 stlsoft::string_tokeniser< S
00417 , S
00418 , stlsoft::string_tokeniser_ignore_blanks<false>
00419 > tokens(contents, delim);
00420
00421 std::transform(tokens.begin(), tokens.end(), std::back_inserter(container), trim_trailing_carriage_return< C::value_type>());
00422 #else
00423
00424 readlines_impl(contents.c_str(), contents.size(), container);
00425 #endif
00426
00427 return container;
00428 }
00429
00430
00431
00432
00433
00434
00435 #ifdef STLSOFT_UNITTEST
00436 # include "./unittest/file_functions_unittest_.h"
00437 #endif
00438
00439
00440
00441 #ifndef _WINSTL_NO_NAMESPACE
00442 # if defined(_STLSOFT_NO_NAMESPACE) || \
00443 defined(STLSOFT_DOCUMENTATION_SKIP_SECTION)
00444 }
00445 # else
00446 }
00447 }
00448 # endif
00449
00450 #endif
00451
00452
00453
00454 #endif
00455
00456