include/wx/filefn.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        filefn.h
   3 // Purpose:     File- and directory-related functions
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     29/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 1998 Julian Smart
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef   _FILEFN_H_
  13 #define   _FILEFN_H_
  14
  15 #ifdef __GNUG__
  16     #pragma interface "filefn.h"
  17 #endif
  18
  19 #include "wx/list.h"
  20
  21 #include <time.h>
  22
  23 // ----------------------------------------------------------------------------
  24 // constants
  25 // ----------------------------------------------------------------------------
  26
  27 // define off_t
  28 #if !defined(__WXMAC__) || defined(__UNIX__)
  29     #include  <sys/types.h>
  30 #else
  31     typedef long off_t;
  32 #endif
  33
  34 #if defined(__VISUALC__) || ( defined(__MWERKS__) && defined( __INTEL__) )
  35     typedef _off_t off_t;
  36 #elif defined(__BORLANDC__) && defined(__WIN16__)
  37     typedef long off_t;
  38 #elif defined(__SC__)
  39     typedef long off_t;
  40 #elif defined(__MWERKS__) && !defined(__INTEL__)
  41     typedef long off_t;
  42 #endif
  43
  44 #if defined(__VISAGECPP__) && __IBMCPP__ >= 400
  45 //
  46 // VisualAge C++ V4.0 cannot have any external linkage const decs
  47 // in headers included by more than one primary source
  48 //
  49 extern const off_t wxInvalidOffset;
  50 #else
  51 const off_t wxInvalidOffset = (off_t)-1;
  52 #endif
  53
  54 enum wxSeekMode
  55 {
  56   wxFromStart,
  57   wxFromCurrent,
  58   wxFromEnd
  59 };
  60
  61 WXDLLEXPORT_DATA(extern const wxChar*) wxEmptyString;
  62
  63 // ----------------------------------------------------------------------------
  64 // declare our versions of low level file functions: some compilers prepend
  65 // underscores to the usual names, some also have Unicode versions of them
  66 // ----------------------------------------------------------------------------
  67
  68 // Microsoft compiler loves underscores, feed them to it
  69 #if defined( __VISUALC__ ) \
  70     || ( defined(__MINGW32__) && wxCHECK_W32API_VERSION( 0, 5 ) ) \
  71     || ( defined(__MWERKS__) && defined(__WXMSW__) )
  72     // functions
  73     #define   wxClose      _close
  74     #define   wxRead       _read
  75     #define   wxWrite      _write
  76     #define   wxLseek      _lseek
  77     #define   wxFsync      _commit
  78     #define   wxEof        _eof
  79
  80     #define   wxTell       _tell
  81
  82     #if wxUSE_UNICODE
  83         #if wxUSE_UNICODE_MSLU
  84             WXDLLEXPORT int wxOpen(const wxChar *name, int flags, int mode);
  85         #else
  86             #define   wxOpen       _wopen
  87         #endif
  88         #define   wxAccess     _waccess
  89
  90         #define   wxMkDir      _wmkdir
  91         #define   wxRmDir      _wrmdir
  92
  93         #define   wxStat       _wstat
  94     #else // !wxUSE_UNICODE
  95         #define   wxOpen       _open
  96         #define   wxAccess     _access
  97
  98         #define   wxMkDir      _mkdir
  99         #define   wxRmDir      _rmdir
 100
 101         #define   wxStat       _stat
 102     #endif
 103
 104     // types
 105     #define   wxStructStat struct _stat
 106
 107     // constants (unless already defined by the user code)
 108     #ifndef O_RDONLY
 109         #define   O_RDONLY    _O_RDONLY
 110         #define   O_WRONLY    _O_WRONLY
 111         #define   O_RDWR      _O_RDWR
 112         #define   O_EXCL      _O_EXCL
 113         #define   O_CREAT     _O_CREAT
 114         #define   O_BINARY    _O_BINARY
 115
 116         #define   S_IFMT      _S_IFMT
 117         #define   S_IFDIR     _S_IFDIR
 118         #define   S_IFREG     _S_IFREG
 119     #endif // O_RDONLY
 120 #else
 121     // functions
 122     #define   wxOpen       open
 123     #define   wxClose      close
 124     #define   wxRead       read
 125     #define   wxWrite      write
 126     #define   wxLseek      lseek
 127     #define   wxFsync      commit
 128     #define   wxAccess     access
 129     #define   wxEof        eof
 130
 131     #define   wxMkDir      mkdir
 132     #define   wxRmDir      rmdir
 133
 134     #define   wxTell(fd)   lseek(fd, 0, SEEK_CUR)
 135
 136     #define   wxStat       stat
 137
 138     // types
 139     #define   wxStructStat struct stat
 140
 141 #endif  // VC++
 142
 143 // ----------------------------------------------------------------------------
 144 // functions
 145 // ----------------------------------------------------------------------------
 146 WXDLLEXPORT bool wxFileExists(const wxString& filename);
 147 #define FileExists wxFileExists
 148
 149 // does the path exist? (may have or not '/' or '\\' at the end)
 150 WXDLLEXPORT bool wxPathExists(const wxChar *pszPathName);
 151
 152 #define wxDirExists wxPathExists
 153 #define DirExists wxDirExists
 154
 155 WXDLLEXPORT bool wxIsAbsolutePath(const wxString& filename);
 156 #define IsAbsolutePath wxIsAbsolutePath
 157
 158 // Get filename
 159 WXDLLEXPORT wxChar* wxFileNameFromPath(wxChar *path);
 160 WXDLLEXPORT wxString wxFileNameFromPath(const wxString& path);
 161 #define FileNameFromPath wxFileNameFromPath
 162
 163 // Get directory
 164 WXDLLEXPORT wxString wxPathOnly(const wxString& path);
 165 #define PathOnly wxPathOnly
 166
 167 // wxString version
 168 WXDLLEXPORT wxString wxRealPath(const wxString& path);
 169
 170 WXDLLEXPORT void wxDos2UnixFilename(wxChar *s);
 171 #define Dos2UnixFilename wxDos2UnixFilename
 172
 173 WXDLLEXPORT void wxUnix2DosFilename(wxChar *s);
 174 #define Unix2DosFilename wxUnix2DosFilename
 175
 176 #ifdef __WXMAC__
 177 WXDLLEXPORT wxString wxMacFSSpec2MacFilename( const FSSpec *spec ) ;
 178 WXDLLEXPORT void wxMacFilename2FSSpec( const char *path , FSSpec *spec ) ;
 179 #  ifndef __DARWIN__
 180 // Mac file names are POSIX (Unix style) under Darwin, so these are not needed
 181 WXDLLEXPORT wxString wxMacFSSpec2UnixFilename( const FSSpec *spec ) ;
 182 WXDLLEXPORT void wxUnixFilename2FSSpec( const char *path , FSSpec *spec ) ;
 183 WXDLLEXPORT wxString wxMac2UnixFilename( const char *s) ;
 184 WXDLLEXPORT wxString wxUnix2MacFilename( const char *s);
 185 #  endif
 186 #endif
 187
 188 // Strip the extension, in situ
 189 WXDLLEXPORT void wxStripExtension(wxChar *buffer);
 190 WXDLLEXPORT void wxStripExtension(wxString& buffer);
 191
 192 // Get a temporary filename
 193 WXDLLEXPORT wxChar* wxGetTempFileName(const wxString& prefix, wxChar *buf = (wxChar *) NULL);
 194 WXDLLEXPORT bool wxGetTempFileName(const wxString& prefix, wxString& buf);
 195
 196 // Expand file name (~/ and ${OPENWINHOME}/ stuff)
 197 WXDLLEXPORT wxChar* wxExpandPath(wxChar *dest, const wxChar *path);
 198 WXDLLEXPORT bool wxExpandPath(wxString& dest, const wxChar *path);
 199
 200 // Contract w.r.t environment (</usr/openwin/lib, OPENWHOME> -> ${OPENWINHOME}/lib)
 201 // and make (if under the home tree) relative to home
 202 // [caller must copy-- volatile]
 203 WXDLLEXPORT wxChar* wxContractPath(const wxString& filename,
 204                                    const wxString& envname = wxEmptyString,
 205                                    const wxString& user = wxEmptyString);
 206
 207 // Destructive removal of /./ and /../ stuff
 208 WXDLLEXPORT wxChar* wxRealPath(wxChar *path);
 209
 210 // Allocate a copy of the full absolute path
 211 WXDLLEXPORT wxChar* wxCopyAbsolutePath(const wxString& path);
 212
 213 // Get first file name matching given wild card.
 214 // Flags are reserved for future use.
 215 #define wxFILE  1
 216 #define wxDIR   2
 217 WXDLLEXPORT wxString wxFindFirstFile(const wxChar *spec, int flags = wxFILE);
 218 WXDLLEXPORT wxString wxFindNextFile();
 219
 220 // Does the pattern contain wildcards?
 221 WXDLLEXPORT bool wxIsWild(const wxString& pattern);
 222
 223 // Does the pattern match the text (usually a filename)?
 224 // If dot_special is TRUE, doesn't match * against . (eliminating
 225 // `hidden' dot files)
 226 WXDLLEXPORT bool wxMatchWild(const wxString& pattern,  const wxString& text, bool dot_special = TRUE);
 227
 228 // Concatenate two files to form third
 229 WXDLLEXPORT bool wxConcatFiles(const wxString& file1, const wxString& file2, const wxString& file3);
 230
 231 // Copy file1 to file2
 232 WXDLLEXPORT bool wxCopyFile(const wxString& file1, const wxString& file2,
 233                             bool overwrite = TRUE);
 234
 235 // Remove file
 236 WXDLLEXPORT bool wxRemoveFile(const wxString& file);
 237
 238 // Rename file
 239 WXDLLEXPORT bool wxRenameFile(const wxString& file1, const wxString& file2);
 240
 241 // Get current working directory.
 242 // If buf is NULL, allocates space using new, else
 243 // copies into buf.
 244 // IMPORTANT NOTE getcwd is know not to work under some releases
 245 // of Win32s 1.3, according to MS release notes!
 246 WXDLLEXPORT wxChar* wxGetWorkingDirectory(wxChar *buf = (wxChar *) NULL, int sz = 1000);
 247 // new and preferred version of wxGetWorkingDirectory
 248 // NB: can't have the same name because of overloading ambiguity
 249 WXDLLEXPORT wxString wxGetCwd();
 250
 251 // Set working directory
 252 WXDLLEXPORT bool wxSetWorkingDirectory(const wxString& d);
 253
 254 // Make directory
 255 WXDLLEXPORT bool wxMkdir(const wxString& dir, int perm = 0777);
 256
 257 // Remove directory. Flags reserved for future use.
 258 WXDLLEXPORT bool wxRmdir(const wxString& dir, int flags = 0);
 259
 260 // ----------------------------------------------------------------------------
 261 // separators in file names
 262 // ----------------------------------------------------------------------------
 263
 264 // between file name and extension
 265 #define wxFILE_SEP_EXT        wxT('.')
 266
 267 // between drive/volume name and the path
 268 #define wxFILE_SEP_DSK        wxT(':')
 269
 270 // between the path components
 271 #define wxFILE_SEP_PATH_DOS   wxT('\\')
 272 #define wxFILE_SEP_PATH_UNIX  wxT('/')
 273 #define wxFILE_SEP_PATH_MAC   wxT(':')
 274 #define wxFILE_SEP_PATH_VMS   wxT('.') // VMS also uses '[' and ']'
 275
 276 // separator in the path list (as in PATH environment variable)
 277 // there is no PATH variable in Classic Mac OS so just use the
 278 // semicolon (it must be different from the file name separator)
 279 // NB: these are strings and not characters on purpose!
 280 #define wxPATH_SEP_DOS        wxT(";")
 281 #define wxPATH_SEP_UNIX       wxT(":")
 282 #define wxPATH_SEP_MAC        wxT(";")
 283
 284 // platform independent versions
 285 #if defined(__UNIX__)
 286   #define wxFILE_SEP_PATH     wxFILE_SEP_PATH_UNIX
 287   #define wxPATH_SEP          wxPATH_SEP_UNIX
 288 #elif defined(__MAC__)
 289   #define wxFILE_SEP_PATH     wxFILE_SEP_PATH_MAC
 290   #define wxPATH_SEP          wxPATH_SEP_MAC
 291 #else   // Windows and OS/2
 292   #define wxFILE_SEP_PATH     wxFILE_SEP_PATH_DOS
 293   #define wxPATH_SEP          wxPATH_SEP_DOS
 294 #endif  // Unix/Windows
 295
 296 // this is useful for wxString::IsSameAs(): to compare two file names use
 297 // filename1.IsSameAs(filename2, wxARE_FILENAMES_CASE_SENSITIVE)
 298 #if defined(__UNIX__) && !defined(__DARWIN__)
 299   #define wxARE_FILENAMES_CASE_SENSITIVE  TRUE
 300 #else   // Windows, Mac OS and OS/2
 301   #define wxARE_FILENAMES_CASE_SENSITIVE  FALSE
 302 #endif  // Unix/Windows
 303
 304 // is the char a path separator?
 305 inline bool wxIsPathSeparator(wxChar c)
 306   { return c == wxFILE_SEP_PATH_DOS || c == wxFILE_SEP_PATH_UNIX; }
 307
 308 // does the string ends with path separator?
 309 WXDLLEXPORT bool wxEndsWithPathSeparator(const wxChar *pszFileName);
 310
 311 // split the full path into path (including drive for DOS), name and extension
 312 // (understands both '/' and '\\')
 313 WXDLLEXPORT void wxSplitPath(const wxChar *pszFileName,
 314                              wxString *pstrPath,
 315                              wxString *pstrName,
 316                              wxString *pstrExt);
 317
 318 // find a file in a list of directories, returns false if not found
 319 WXDLLEXPORT bool wxFindFileInPath(wxString *pStr, const wxChar *pszPath, const wxChar *pszFile);
 320
 321 // Get the OS directory if appropriate (such as the Windows directory).
 322 // On non-Windows platform, probably just return the empty string.
 323 WXDLLEXPORT wxString wxGetOSDirectory();
 324
 325 // Get file modification time
 326 WXDLLEXPORT time_t wxFileModificationTime(const wxString& filename);
 327
 328 // ----------------------------------------------------------------------------
 329 // classes
 330 // ----------------------------------------------------------------------------
 331
 332 // Path searching
 333 class WXDLLEXPORT wxPathList : public wxStringList
 334 {
 335 public:
 336     // Adds all paths in environment variable
 337     void AddEnvList(const wxString& envVariable);
 338
 339     void Add(const wxString& path);
 340     // Avoid compiler warning
 341     wxNode *Add(const wxChar *s) { return wxStringList::Add(s); }
 342     // Find the first full path for which the file exists
 343     wxString FindValidPath(const wxString& filename);
 344     // Find the first full path for which the file exists; ensure it's an
 345     // absolute path that gets returned.
 346     wxString FindAbsoluteValidPath(const wxString& filename);
 347     // Given full path and filename, add path to list
 348     void EnsureFileAccessible(const wxString& path);
 349     // Returns TRUE if the path is in the list
 350     bool Member(const wxString& path);
 351
 352 private:
 353     DECLARE_DYNAMIC_CLASS(wxPathList)
 354 };
 355
 356 #endif
 357   // _WX_FILEFN_H_