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# cpl_conv.h

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    00001 /******************************************************************************
    00002  * $Id: cpl_conv.h 27121 2014-04-03 22:08:55Z rouault $
    00003  *
    00004  * Project:  CPL - Common Portability Library
    00005  * Purpose:  Convenience functions declarations.
    00006  *           This is intended to remain light weight.
    00007  * Author:   Frank Warmerdam, warmerdam@pobox.com
    00008  *
    00009  ******************************************************************************
    00010  * Copyright (c) 1998, Frank Warmerdam
    00011  * Copyright (c) 2007-2013, Even Rouault <even dot rouault at mines-paris dot org>
    00012  *
    00013  * Permission is hereby granted, free of charge, to any person obtaining a
    00014  * copy of this software and associated documentation files (the "Software"),
    00015  * to deal in the Software without restriction, including without limitation
    00016  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
    00017  * and/or sell copies of the Software, and to permit persons to whom the
    00018  * Software is furnished to do so, subject to the following conditions:
    00019  *
    00020  * The above copyright notice and this permission notice shall be included
    00021  * in all copies or substantial portions of the Software.
    00022  *
    00023  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
    00024  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    00025  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
    00026  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    00027  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
    00028  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
    00029  * DEALINGS IN THE SOFTWARE.
    00030  ****************************************************************************/
    00031
    00032 #ifndef CPL_CONV_H_INCLUDED
    00033 #define CPL_CONV_H_INCLUDED
    00034
    00035 #include "cpl_port.h"
    00036 #include "cpl_vsi.h"
    00037 #include "cpl_error.h"
    00038
    00046 /* -------------------------------------------------------------------- */
    00047 /*      Runtime check of various configuration items.                   */
    00048 /* -------------------------------------------------------------------- */
    00049 CPL_C_START
    00050
    00051 void CPL_DLL CPLVerifyConfiguration(void);
    00052
    00053 const char CPL_DLL * CPL_STDCALL
    00054 CPLGetConfigOption( const char *, const char * ) CPL_WARN_UNUSED_RESULT;
    00055 void CPL_DLL CPL_STDCALL CPLSetConfigOption( const char *, const char * );
    00056 void CPL_DLL CPL_STDCALL CPLSetThreadLocalConfigOption( const char *pszKey,
    00057                                                         const char *pszValue );
    00058 void CPL_DLL CPL_STDCALL CPLFreeConfig(void);
    00059
    00060 /* -------------------------------------------------------------------- */
    00061 /*      Safe malloc() API.  Thin cover over VSI functions with fatal    */
    00062 /*      error reporting if memory allocation fails.                     */
    00063 /* -------------------------------------------------------------------- */
    00064 void CPL_DLL *CPLMalloc( size_t ) CPL_WARN_UNUSED_RESULT;
    00065 void CPL_DLL *CPLCalloc( size_t, size_t ) CPL_WARN_UNUSED_RESULT;
    00066 void CPL_DLL *CPLRealloc( void *, size_t ) CPL_WARN_UNUSED_RESULT;
    00067 char CPL_DLL *CPLStrdup( const char * ) CPL_WARN_UNUSED_RESULT;
    00068 char CPL_DLL *CPLStrlwr( char *);
    00069
    00070 #define CPLFree VSIFree
    00071
    00072 /* -------------------------------------------------------------------- */
    00073 /*      Read a line from a text file, and strip of CR/LF.               */
    00074 /* -------------------------------------------------------------------- */
    00075 char CPL_DLL *CPLFGets( char *, int, FILE *);
    00076 const char CPL_DLL *CPLReadLine( FILE * );
    00077 const char CPL_DLL *CPLReadLineL( VSILFILE * );
    00078 const char CPL_DLL *CPLReadLine2L( VSILFILE * , int nMaxCols, char** papszOptions);
    00079
    00080 /* -------------------------------------------------------------------- */
    00081 /*      Convert ASCII string to floationg point number                  */
    00082 /*      (THESE FUNCTIONS ARE NOT LOCALE AWARE!).                        */
    00083 /* -------------------------------------------------------------------- */
    00084 double CPL_DLL CPLAtof(const char *);
    00085 double CPL_DLL CPLAtofDelim(const char *, char);
    00086 double CPL_DLL CPLStrtod(const char *, char **);
    00087 double CPL_DLL CPLStrtodDelim(const char *, char **, char);
    00088 float CPL_DLL CPLStrtof(const char *, char **);
    00089 float CPL_DLL CPLStrtofDelim(const char *, char **, char);
    00090
    00091 /* -------------------------------------------------------------------- */
    00092 /*      Convert number to string.  This function is locale agnostic     */
    00093 /*      (ie. it will support "," or "." regardless of current locale)   */
    00094 /* -------------------------------------------------------------------- */
    00095 double CPL_DLL CPLAtofM(const char *);
    00096
    00097 /* -------------------------------------------------------------------- */
    00098 /*      Read a numeric value from an ASCII character string.            */
    00099 /* -------------------------------------------------------------------- */
    00100 char CPL_DLL *CPLScanString( const char *, int, int, int );
    00101 double CPL_DLL CPLScanDouble( const char *, int );
    00102 long CPL_DLL CPLScanLong( const char *, int );
    00103 unsigned long CPL_DLL CPLScanULong( const char *, int );
    00104 GUIntBig CPL_DLL CPLScanUIntBig( const char *, int );
    00105 void CPL_DLL *CPLScanPointer( const char *, int );
    00106
    00107 /* -------------------------------------------------------------------- */
    00108 /*      Print a value to an ASCII character string.                     */
    00109 /* -------------------------------------------------------------------- */
    00110 int CPL_DLL CPLPrintString( char *, const char *, int );
    00111 int CPL_DLL CPLPrintStringFill( char *, const char *, int );
    00112 int CPL_DLL CPLPrintInt32( char *, GInt32 , int );
    00113 int CPL_DLL CPLPrintUIntBig( char *, GUIntBig , int );
    00114 int CPL_DLL CPLPrintDouble( char *, const char *, double, const char * );
    00115 int CPL_DLL CPLPrintTime( char *, int , const char *, const struct tm *,
    00116                           const char * );
    00117 int CPL_DLL CPLPrintPointer( char *, void *, int );
    00118
    00119 /* -------------------------------------------------------------------- */
    00120 /*      Fetch a function from DLL / so.                                 */
    00121 /* -------------------------------------------------------------------- */
    00122
    00123 void CPL_DLL *CPLGetSymbol( const char *, const char * );
    00124
    00125 /* -------------------------------------------------------------------- */
    00126 /*      Fetch executable path.                                          */
    00127 /* -------------------------------------------------------------------- */
    00128 int CPL_DLL CPLGetExecPath( char *pszPathBuf, int nMaxLength );
    00129
    00130 /* -------------------------------------------------------------------- */
    00131 /*      Filename handling functions.                                    */
    00132 /* -------------------------------------------------------------------- */
    00133 const char CPL_DLL *CPLGetPath( const char * );
    00134 const char CPL_DLL *CPLGetDirname( const char * );
    00135 const char CPL_DLL *CPLGetFilename( const char * );
    00136 const char CPL_DLL *CPLGetBasename( const char * );
    00137 const char CPL_DLL *CPLGetExtension( const char * );
    00138 char       CPL_DLL *CPLGetCurrentDir(void);
    00139 const char CPL_DLL *CPLFormFilename( const char *pszPath,
    00140                                      const char *pszBasename,
    00141                                      const char *pszExtension );
    00142 const char CPL_DLL *CPLFormCIFilename( const char *pszPath,
    00143                                        const char *pszBasename,
    00144                                        const char *pszExtension );
    00145 const char CPL_DLL *CPLResetExtension( const char *, const char * );
    00146 const char CPL_DLL *CPLProjectRelativeFilename( const char *pszProjectDir,
    00147                                             const char *pszSecondaryFilename );
    00148 int CPL_DLL CPLIsFilenameRelative( const char *pszFilename );
    00149 const char CPL_DLL *CPLExtractRelativePath(const char *, const char *, int *);
    00150 const char CPL_DLL *CPLCleanTrailingSlash( const char * );
    00151 char CPL_DLL      **CPLCorrespondingPaths( const char *pszOldFilename,
    00152                                            const char *pszNewFilename,
    00153                                            char **papszFileList );
    00154 int CPL_DLL CPLCheckForFile( char *pszFilename, char **papszSiblingList );
    00155
    00156 const char CPL_DLL *CPLGenerateTempFilename( const char *pszStem );
    00157
    00158 /* -------------------------------------------------------------------- */
    00159 /*      Find File Function                                              */
    00160 /* -------------------------------------------------------------------- */
    00161 typedef const char *(*CPLFileFinder)(const char *, const char *);
    00162
    00163 const char    CPL_DLL *CPLFindFile(const char *pszClass,
    00164                                    const char *pszBasename);
    00165 const char    CPL_DLL *CPLDefaultFindFile(const char *pszClass,
    00166                                           const char *pszBasename);
    00167 void          CPL_DLL CPLPushFileFinder( CPLFileFinder pfnFinder );
    00168 CPLFileFinder CPL_DLL CPLPopFileFinder(void);
    00169 void          CPL_DLL CPLPushFinderLocation( const char * );
    00170 void          CPL_DLL CPLPopFinderLocation(void);
    00171 void          CPL_DLL CPLFinderClean(void);
    00172
    00173 /* -------------------------------------------------------------------- */
    00174 /*      Safe version of stat() that works properly on stuff like "C:".  */
    00175 /* -------------------------------------------------------------------- */
    00176 int CPL_DLL     CPLStat( const char *, VSIStatBuf * );
    00177
    00178 /* -------------------------------------------------------------------- */
    00179 /*      Reference counted file handle manager.  Makes sharing file      */
    00180 /*      handles more practical.                                         */
    00181 /* -------------------------------------------------------------------- */
    00182 typedef struct {
    00183     FILE *fp;
    00184     int   nRefCount;
    00185     int   bLarge;
    00186     char  *pszFilename;
    00187     char  *pszAccess;
    00188 } CPLSharedFileInfo;
    00189
    00190 FILE CPL_DLL    *CPLOpenShared( const char *, const char *, int );
    00191 void CPL_DLL     CPLCloseShared( FILE * );
    00192 CPLSharedFileInfo CPL_DLL *CPLGetSharedList( int * );
    00193 void CPL_DLL     CPLDumpSharedList( FILE * );
    00194 void CPL_DLL     CPLCleanupSharedFileMutex( void );
    00195
    00196 /* -------------------------------------------------------------------- */
    00197 /*      DMS to Dec to DMS conversion.                                   */
    00198 /* -------------------------------------------------------------------- */
    00199 double CPL_DLL CPLDMSToDec( const char *is );
    00200 const char CPL_DLL *CPLDecToDMS( double dfAngle, const char * pszAxis,
    00201                                  int nPrecision );
    00202 double CPL_DLL CPLPackedDMSToDec( double );
    00203 double CPL_DLL CPLDecToPackedDMS( double dfDec );
    00204
    00205 void CPL_DLL CPLStringToComplex( const char *pszString,
    00206                                  double *pdfReal, double *pdfImag );
    00207
    00208 /* -------------------------------------------------------------------- */
    00209 /*      Misc other functions.                                           */
    00210 /* -------------------------------------------------------------------- */
    00211 int CPL_DLL CPLUnlinkTree( const char * );
    00212 int CPL_DLL CPLCopyFile( const char *pszNewPath, const char *pszOldPath );
    00213 int CPL_DLL CPLMoveFile( const char *pszNewPath, const char *pszOldPath );
    00214
    00215 /* -------------------------------------------------------------------- */
    00216 /*      ZIP Creation.                                                   */
    00217 /* -------------------------------------------------------------------- */
    00218 #define CPL_ZIP_API_OFFERED
    00219 void CPL_DLL  *CPLCreateZip( const char *pszZipFilename, char **papszOptions );
    00220 CPLErr CPL_DLL CPLCreateFileInZip( void *hZip, const char *pszFilename,
    00221                                    char **papszOptions );
    00222 CPLErr CPL_DLL CPLWriteFileInZip( void *hZip, const void *pBuffer, int nBufferSize );
    00223 CPLErr CPL_DLL CPLCloseFileInZip( void *hZip );
    00224 CPLErr CPL_DLL CPLCloseZip( void *hZip );
    00225
    00226 /* -------------------------------------------------------------------- */
    00227 /*      ZLib compression                                                */
    00228 /* -------------------------------------------------------------------- */
    00229
    00230 void CPL_DLL *CPLZLibDeflate( const void* ptr, size_t nBytes, int nLevel,
    00231                               void* outptr, size_t nOutAvailableBytes,
    00232                               size_t* pnOutBytes );
    00233 void CPL_DLL *CPLZLibInflate( const void* ptr, size_t nBytes,
    00234                               void* outptr, size_t nOutAvailableBytes,
    00235                               size_t* pnOutBytes );
    00236
    00237 /* -------------------------------------------------------------------- */
    00238 /*      XML validation.                                                 */
    00239 /* -------------------------------------------------------------------- */
    00240 int CPL_DLL CPLValidateXML(const char* pszXMLFilename,
    00241                            const char* pszXSDFilename,
    00242                            char** papszOptions);
    00243
    00244 /* -------------------------------------------------------------------- */
    00245 /*      Locale handling. Prevents parallel executions of setlocale().   */
    00246 /* -------------------------------------------------------------------- */
    00247 char* CPLsetlocale (int category, const char* locale);
    00248 void CPLCleanupSetlocaleMutex(void);
    00249
    00250 CPL_C_END
    00251
    00252 /* -------------------------------------------------------------------- */
    00253 /*      C++ object for temporariliy forcing a LC_NUMERIC locale to "C". */
    00254 /* -------------------------------------------------------------------- */
    00255
    00256 #if defined(__cplusplus) && !defined(CPL_SUPRESS_CPLUSPLUS)
    00257
    00258 class CPL_DLL CPLLocaleC
    00259 {
    00260 public:
    00261     CPLLocaleC();
    00262     ~CPLLocaleC();
    00263
    00264 private:
    00265     char *pszOldLocale;
    00266
    00267     /* Make it non-copyable */
    00268     CPLLocaleC(CPLLocaleC&);
    00269     CPLLocaleC& operator=(CPLLocaleC&);
    00270 };
    00271
    00272 #endif /* def __cplusplus */
    00273
    00274
    00275 #endif /* ndef CPL_CONV_H_INCLUDED */

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