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<hr><h1>cpl_path.cpp</h1><div class="fragment"><pre>00001 <font class="comment">/**********************************************************************</font>
00002 <font class="comment"> * $Id: cpl_path_cpp-source.html,v 1.10 2002/04/16 13:11:47 warmerda Exp $</font>
00003 <font class="comment"> *</font>
00004 <font class="comment"> * Project: CPL - Common Portability Library</font>
00005 <font class="comment"> * Purpose: Portable filename/path parsing, and forming ala "Glob API".</font>
00006 <font class="comment"> * Author: Frank Warmerdam, warmerda@home.com</font>
00007 <font class="comment"> *</font>
00008 <font class="comment"> **********************************************************************</font>
00009 <font class="comment"> * Copyright (c) 1999, Frank Warmerdam</font>
00010 <font class="comment"> *</font>
00011 <font class="comment"> * Permission is hereby granted, free of charge, to any person obtaining a</font>
00012 <font class="comment"> * copy of this software and associated documentation files (the "Software"),</font>
00013 <font class="comment"> * to deal in the Software without restriction, including without limitation</font>
00014 <font class="comment"> * the rights to use, copy, modify, merge, publish, distribute, sublicense,</font>
00015 <font class="comment"> * and/or sell copies of the Software, and to permit persons to whom the</font>
00016 <font class="comment"> * Software is furnished to do so, subject to the following conditions:</font>
00017 <font class="comment"> * </font>
00018 <font class="comment"> * The above copyright notice and this permission notice shall be included</font>
00019 <font class="comment"> * in all copies or substantial portions of the Software.</font>
00020 <font class="comment"> * </font>
00021 <font class="comment"> * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR</font>
00022 <font class="comment"> * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,</font>
00023 <font class="comment"> * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL</font>
00024 <font class="comment"> * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER</font>
00025 <font class="comment"> * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING</font>
00026 <font class="comment"> * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER </font>
00027 <font class="comment"> * DEALINGS IN THE SOFTWARE.</font>
00028 <font class="comment"> **********************************************************************</font>
00029 <font class="comment"> *</font>
00030 <font class="comment"> * $Log: cpl_path_cpp-source.html,v $
00030 <font class="comment"> * Revision 1.10 2002/04/16 13:11:47 warmerda
00030 <font class="comment"> * updated
00030 <font class="comment"> *</font>
00031 <font class="comment"> * Revision 1.9 2001/08/30 21:20:49 warmerda</font>
00032 <font class="comment"> * expand tabs</font>
00033 <font class="comment"> *</font>
00034 <font class="comment"> * Revision 1.8 2001/07/18 04:00:49 warmerda</font>
00035 <font class="comment"> * added CPL_CVSID</font>
00036 <font class="comment"> *</font>
00037 <font class="comment"> * Revision 1.7 2001/05/12 19:20:55 warmerda</font>
00038 <font class="comment"> * Fixed documentation of CPLGetExtension().</font>
00039 <font class="comment"> *</font>
00040 <font class="comment"> * Revision 1.6 2001/03/16 22:15:08 warmerda</font>
00041 <font class="comment"> * added CPLResetExtension</font>
00042 <font class="comment"> *</font>
00043 <font class="comment"> * Revision 1.5 2001/02/24 01:53:57 warmerda</font>
00044 <font class="comment"> * Added CPLFormCIFilename()</font>
00045 <font class="comment"> *</font>
00046 <font class="comment"> * Revision 1.4 2001/01/19 21:18:25 warmerda</font>
00047 <font class="comment"> * expanded tabs</font>
00048 <font class="comment"> *</font>
00049 <font class="comment"> * Revision 1.3 2000/01/26 17:53:36 warmerda</font>
00050 <font class="comment"> * Fixed CPLGetExtension() for filenames with no extension.</font>
00051 <font class="comment"> *</font>
00052 <font class="comment"> * Revision 1.2 2000/01/24 19:32:59 warmerda</font>
00053 <font class="comment"> * Fixed CPLGetExtension() to not include the dot.</font>
00054 <font class="comment"> *</font>
00055 <font class="comment"> * Revision 1.1 1999/10/14 19:23:39 warmerda</font>
00056 <font class="comment"> * New</font>
00057 <font class="comment"> *</font>
00058 <font class="comment"> **********************************************************************/</font>
00059
00060 <font class="preprocessor">#include "<a class="code" href="cpl_conv_h.html">cpl_conv.h</a>"</font>
00061 <font class="preprocessor">#include "cpl_string.h"</font>
00062
00063 CPL_CVSID(<font class="stringliteral">"$Id: cpl_path_cpp-source.html,v 1.10 2002/04/16 13:11:47 warmerda Exp $"</font>);
00064
00065
00066 <font class="keyword">static</font> <font class="keywordtype">char</font> szStaticResult[1024]; <font class="comment">/* should be size of larged possible</font>
00067 <font class="comment"> filename */</font>
00068
00069 <font class="comment">/************************************************************************/</font>
00070 <font class="comment">/* CPLFindFilenameStart() */</font>
00071 <font class="comment">/************************************************************************/</font>
00072
00073 <font class="keyword">static</font> <font class="keywordtype">int</font> CPLFindFilenameStart( <font class="keyword">const</font> <font class="keywordtype">char</font> * pszFilename )<font class="keyword"></font>
00074 <font class="keyword"></font>
00075 <font class="keyword"></font>{
00076 <font class="keywordtype">int</font> iFileStart;
00077
00078 <font class="keywordflow">for</font>( iFileStart = strlen(pszFilename);
00079 iFileStart > 0
00080 && pszFilename[iFileStart-1] != <font class="charliteral">'/'</font>
00081 && pszFilename[iFileStart-1] != <font class="charliteral">'\\'</font>;
00082 iFileStart-- ) {}
00083
00084 <font class="keywordflow">return</font> iFileStart;
00085 }
00086
00087 <font class="comment">/************************************************************************/</font>
00088 <font class="comment">/* CPLGetPath() */</font>
00089 <font class="comment">/************************************************************************/</font>
00090
00112 <font class="keyword">const</font> <font class="keywordtype">char</font> *<a class="code" href="cpl_conv_h.html#a10">CPLGetPath</a>( <font class="keyword">const</font> <font class="keywordtype">char</font> *pszFilename )<font class="keyword"></font>
00113 <font class="keyword"></font>
00114 <font class="keyword"></font>{
00115 <font class="keywordtype">int</font> iFileStart = CPLFindFilenameStart(pszFilename);
00116
00117 <font class="keywordflow">if</font>( iFileStart == 0 )
00118 {
00119 strcpy( szStaticResult, <font class="stringliteral">""</font> );
00120 <font class="keywordflow">return</font> szStaticResult;
00121 }
00122
00123 strncpy( szStaticResult, pszFilename, iFileStart );
00124 szStaticResult[iFileStart] = <font class="charliteral">'\0'</font>;
00125
00126 <font class="keywordflow">if</font>( iFileStart > 1
00127 && (szStaticResult[iFileStart-1] == <font class="charliteral">'/'</font>
00128 || szStaticResult[iFileStart-1] == <font class="charliteral">'\\'</font>) )
00129 szStaticResult[iFileStart-1] = <font class="charliteral">'\0'</font>;
00130
00131 <font class="keywordflow">return</font> szStaticResult;
00132 }
00133
00134 <font class="comment">/************************************************************************/</font>
00135 <font class="comment">/* CPLGetFilename() */</font>
00136 <font class="comment">/************************************************************************/</font>
00137
00158 <font class="keyword">const</font> <font class="keywordtype">char</font> *<a class="code" href="cpl_conv_h.html#a11">CPLGetFilename</a>( <font class="keyword">const</font> <font class="keywordtype">char</font> *pszFullFilename )<font class="keyword"></font>
00159 <font class="keyword"></font>
00160 <font class="keyword"></font>{
00161 <font class="keywordtype">int</font> iFileStart = CPLFindFilenameStart( pszFullFilename );
00162
00163 strcpy( szStaticResult, pszFullFilename + iFileStart );
00164
00165 <font class="keywordflow">return</font> szStaticResult;
00166 }
00167
00168 <font class="comment">/************************************************************************/</font>
00169 <font class="comment">/* CPLGetBasename() */</font>
00170 <font class="comment">/************************************************************************/</font>
00171
00192 <font class="keyword">const</font> <font class="keywordtype">char</font> *<a class="code" href="cpl_conv_h.html#a12">CPLGetBasename</a>( <font class="keyword">const</font> <font class="keywordtype">char</font> *pszFullFilename )<font class="keyword"></font>
00193 <font class="keyword"></font>
00194 <font class="keyword"></font>{
00195 <font class="keywordtype">int</font> iFileStart = CPLFindFilenameStart( pszFullFilename );
00196 <font class="keywordtype">int</font> iExtStart, nLength;
00197
00198 <font class="keywordflow">for</font>( iExtStart = strlen(pszFullFilename);
00199 iExtStart > iFileStart && pszFullFilename[iExtStart] != <font class="charliteral">'.'</font>;
00200 iExtStart-- ) {}
00201
00202 <font class="keywordflow">if</font>( iExtStart == iFileStart )
00203 iExtStart = strlen(pszFullFilename);
00204
00205 nLength = iExtStart - iFileStart;
00206
00207 strncpy( szStaticResult, pszFullFilename + iFileStart, nLength );
00208 szStaticResult[nLength] = <font class="charliteral">'\0'</font>;
00209
00210 <font class="keywordflow">return</font> szStaticResult;
00211 }
00212
00213
00214 <font class="comment">/************************************************************************/</font>
00215 <font class="comment">/* CPLGetExtension() */</font>
00216 <font class="comment">/************************************************************************/</font>
00217
00237 <font class="keyword">const</font> <font class="keywordtype">char</font> *<a class="code" href="cpl_conv_h.html#a13">CPLGetExtension</a>( <font class="keyword">const</font> <font class="keywordtype">char</font> *pszFullFilename )<font class="keyword"></font>
00238 <font class="keyword"></font>
00239 <font class="keyword"></font>{
00240 <font class="keywordtype">int</font> iFileStart = CPLFindFilenameStart( pszFullFilename );
00241 <font class="keywordtype">int</font> iExtStart;
00242
00243 <font class="keywordflow">for</font>( iExtStart = strlen(pszFullFilename);
00244 iExtStart > iFileStart && pszFullFilename[iExtStart] != <font class="charliteral">'.'</font>;
00245 iExtStart-- ) {}
00246
00247 <font class="keywordflow">if</font>( iExtStart == iFileStart )
00248 iExtStart = strlen(pszFullFilename)-1;
00249
00250 strcpy( szStaticResult, pszFullFilename+iExtStart+1 );
00251
00252 <font class="keywordflow">return</font> szStaticResult;
00253 }
00254
00255 <font class="comment">/************************************************************************/</font>
00256 <font class="comment">/* CPLResetExtension() */</font>
00257 <font class="comment">/************************************************************************/</font>
00258
00270 <font class="keyword">const</font> <font class="keywordtype">char</font> *<a class="code" href="cpl_conv_h.html#a16">CPLResetExtension</a>( <font class="keyword">const</font> <font class="keywordtype">char</font> *pszPath, <font class="keyword">const</font> <font class="keywordtype">char</font> *pszExt )<font class="keyword"></font>
00271 <font class="keyword"></font>
00272 <font class="keyword"></font>{
00273 <font class="keywordtype">int</font> i;
00274
00275 <font class="comment">/* -------------------------------------------------------------------- */</font>
00276 <font class="comment">/* First, try and strip off any existing extension. */</font>
00277 <font class="comment">/* -------------------------------------------------------------------- */</font>
00278 strcpy( szStaticResult, pszPath );
00279 <font class="keywordflow">for</font>( i = strlen(szStaticResult)-1; i > 0; i-- )
00280 {
00281 <font class="keywordflow">if</font>( szStaticResult[i] == <font class="charliteral">'.'</font> )
00282 {
00283 szStaticResult[i] = <font class="charliteral">'\0'</font>;
00284 <font class="keywordflow">break</font>;
00285 }
00286
00287 <font class="keywordflow">if</font>( szStaticResult[i] == <font class="charliteral">'/'</font> || szStaticResult[i] == <font class="charliteral">'\\'</font>
00288 || szStaticResult[i] == <font class="charliteral">':'</font> )
00289 <font class="keywordflow">break</font>;
00290 }
00291
00292 <font class="comment">/* -------------------------------------------------------------------- */</font>
00293 <font class="comment">/* Append the new extension. */</font>
00294 <font class="comment">/* -------------------------------------------------------------------- */</font>
00295 strcat( szStaticResult, <font class="stringliteral">"."</font> );
00296 strcat( szStaticResult, pszExt );
00297
00298 <font class="keywordflow">return</font> szStaticResult;
00299 }
00300
00301 <font class="comment">/************************************************************************/</font>
00302 <font class="comment">/* CPLFormFilename() */</font>
00303 <font class="comment">/************************************************************************/</font>
00304
00333 <font class="keyword">const</font> <font class="keywordtype">char</font> *<a class="code" href="cpl_conv_h.html#a14">CPLFormFilename</a>( <font class="keyword">const</font> <font class="keywordtype">char</font> * pszPath,
00334 <font class="keyword">const</font> <font class="keywordtype">char</font> * pszBasename,
00335 <font class="keyword">const</font> <font class="keywordtype">char</font> * pszExtension )<font class="keyword"></font>
00336 <font class="keyword"></font>
00337 <font class="keyword"></font>{
00338 <font class="keyword">const</font> <font class="keywordtype">char</font> *pszAddedPathSep = <font class="stringliteral">""</font>;
00339 <font class="keyword">const</font> <font class="keywordtype">char</font> *pszAddedExtSep = <font class="stringliteral">""</font>;
00340
00341 <font class="keywordflow">if</font>( pszPath == NULL )
00342 pszPath = <font class="stringliteral">""</font>;
00343 <font class="keywordflow">else</font> <font class="keywordflow">if</font>( strlen(pszPath) > 0
00344 && pszPath[strlen(pszPath)-1] != <font class="charliteral">'/'</font>
00345 && pszPath[strlen(pszPath)-1] != <font class="charliteral">'\\'</font> )
00346 <font class="preprocessor">#ifdef WIN32 </font>
00347 <font class="preprocessor"></font> pszAddedPathSep = <font class="stringliteral">"\\"</font>;
00348 <font class="preprocessor">#else </font>
00349 <font class="preprocessor"></font> pszAddedPathSep = <font class="stringliteral">"/"</font>;
00350 <font class="preprocessor">#endif </font>
00351 <font class="preprocessor"></font>
00352 <font class="keywordflow">if</font>( pszExtension == NULL )
00353 pszExtension = <font class="stringliteral">""</font>;
00354 <font class="keywordflow">else</font> <font class="keywordflow">if</font>( pszExtension[0] != <font class="charliteral">'.'</font> && strlen(pszExtension) > 0 )
00355 pszAddedExtSep = <font class="stringliteral">"."</font>;
00356
00357 sprintf( szStaticResult, <font class="stringliteral">"%s%s%s%s%s"</font>,
00358 pszPath, pszAddedPathSep,
00359 pszBasename,
00360 pszAddedExtSep, pszExtension );
00361
00362 <font class="keywordflow">return</font> szStaticResult;
00363 }
00364
00365 <font class="comment">/************************************************************************/</font>
00366 <font class="comment">/* CPLFormCIFilename() */</font>
00367 <font class="comment">/************************************************************************/</font>
00368
00393 <font class="keyword">const</font> <font class="keywordtype">char</font> *<a class="code" href="cpl_conv_h.html#a15">CPLFormCIFilename</a>( <font class="keyword">const</font> <font class="keywordtype">char</font> * pszPath,
00394 <font class="keyword">const</font> <font class="keywordtype">char</font> * pszBasename,
00395 <font class="keyword">const</font> <font class="keywordtype">char</font> * pszExtension )<font class="keyword"></font>
00396 <font class="keyword"></font>
00397 <font class="keyword"></font>{
00398 <font class="preprocessor">#ifdef WIN32</font>
00399 <font class="preprocessor"></font> <font class="keywordflow">return</font> <a class="code" href="cpl_conv_h.html#a14">CPLFormFilename</a>( pszPath, pszBasename, pszExtension );
00400 <font class="preprocessor">#else</font>
00401 <font class="preprocessor"></font> <font class="keyword">const</font> <font class="keywordtype">char</font> *pszAddedExtSep = <font class="stringliteral">""</font>;
00402 <font class="keywordtype">char</font> *pszFilename;
00403 <font class="keyword">const</font> <font class="keywordtype">char</font> *pszFullPath;
00404 <font class="keywordtype">int</font> nLen = strlen(pszBasename)+2, i;
00405 FILE *fp;
00406
00407 <font class="keywordflow">if</font>( pszExtension != NULL )
00408 nLen += strlen(pszExtension);
00409
00410 pszFilename = (<font class="keywordtype">char</font> *) <a class="code" href="cpl_conv_h.html#a3">CPLMalloc</a>(nLen);
00411
00412 <font class="keywordflow">if</font>( pszExtension == NULL )
00413 pszExtension = <font class="stringliteral">""</font>;
00414 <font class="keywordflow">else</font> <font class="keywordflow">if</font>( pszExtension[0] != <font class="charliteral">'.'</font> && strlen(pszExtension) > 0 )
00415 pszAddedExtSep = <font class="stringliteral">"."</font>;
00416
00417 sprintf( pszFilename, <font class="stringliteral">"%s%s%s"</font>,
00418 pszBasename, pszAddedExtSep, pszExtension );
00419
00420 pszFullPath = <a class="code" href="cpl_conv_h.html#a14">CPLFormFilename</a>( pszPath, pszFilename, NULL );
00421 fp = VSIFOpen( pszFullPath, <font class="stringliteral">"r"</font> );
00422 <font class="keywordflow">if</font>( fp == NULL )
00423 {
00424 <font class="keywordflow">for</font>( i = 0; pszFilename[i] != <font class="charliteral">'\0'</font>; i++ )
00425 {
00426 <font class="keywordflow">if</font>( pszFilename[i] >= <font class="charliteral">'a'</font> && pszFilename[i] <= <font class="charliteral">'z'</font> )
00427 pszFilename[i] = pszFilename[i] + <font class="charliteral">'A'</font> - <font class="charliteral">'a'</font>;
00428 }
00429
00430 pszFullPath = <a class="code" href="cpl_conv_h.html#a14">CPLFormFilename</a>( pszPath, pszFilename, NULL );
00431 fp = VSIFOpen( pszFullPath, <font class="stringliteral">"r"</font> );
00432 }
00433
00434 <font class="keywordflow">if</font>( fp == NULL )
00435 {
00436 <font class="keywordflow">for</font>( i = 0; pszFilename[i] != <font class="charliteral">'\0'</font>; i++ )
00437 {
00438 <font class="keywordflow">if</font>( pszFilename[i] >= <font class="charliteral">'A'</font> && pszFilename[i] <= <font class="charliteral">'Z'</font> )
00439 pszFilename[i] = pszFilename[i] + <font class="charliteral">'a'</font> - <font class="charliteral">'A'</font>;
00440 }
00441
00442 pszFullPath = <a class="code" href="cpl_conv_h.html#a14">CPLFormFilename</a>( pszPath, pszFilename, NULL );
00443 fp = VSIFOpen( pszFullPath, <font class="stringliteral">"r"</font> );
00444 }
00445
00446 <font class="keywordflow">if</font>( fp != NULL )
00447 VSIFClose( fp );
00448 <font class="keywordflow">else</font>
00449 pszFullPath = <a class="code" href="cpl_conv_h.html#a14">CPLFormFilename</a>( pszPath, pszBasename, pszExtension );
00450
00451 CPLFree( pszFilename );
00452
00453 <font class="keywordflow">return</font> pszFullPath;
00454 <font class="preprocessor">#endif</font>
00455 <font class="preprocessor"></font>}
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