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 // ----------------------------------------------------------------------------
  22 // constants
  23 // ----------------------------------------------------------------------------
  24
  25 // define off_t
  26 #include  <sys/types.h>
  27
  28 #ifdef    _MSC_VER
  29   #define   off_t       _off_t
  30 #endif
  31
  32 const off_t wxInvalidOffset = (off_t)-1;
  33
  34 typedef enum {
  35   wxFromStart,
  36   wxFromCurrent,
  37   wxFromEnd
  38 } wxSeekMode;
  39
  40 // ----------------------------------------------------------------------------
  41 // functions
  42 // ----------------------------------------------------------------------------
  43 WXDLLEXPORT bool wxFileExists(const wxString& filename);
  44 #define FileExists wxFileExists
  45
  46 // does the path exist? (may have or not '/' or '\\' at the end)
  47 WXDLLEXPORT bool wxPathExists(const char *pszPathName);
  48
  49 #define wxDirExists wxPathExists
  50 #define DirExists wxDirExists
  51
  52 WXDLLEXPORT bool wxIsAbsolutePath(const wxString& filename);
  53 #define IsAbsolutePath wxIsAbsolutePath
  54
  55 // Get filename
  56 WXDLLEXPORT char* wxFileNameFromPath(char *path);
  57 WXDLLEXPORT wxString wxFileNameFromPath(const wxString& path);
  58 #define FileNameFromPath wxFileNameFromPath
  59
  60 // Get directory
  61 WXDLLEXPORT char* wxPathOnly(char *path);
  62 WXDLLEXPORT wxString wxPathOnly(const wxString& path);
  63 #define PathOnly wxPathOnly
  64
  65 // wxString version
  66 WXDLLEXPORT wxString wxRealPath(const wxString& path);
  67
  68 WXDLLEXPORT void wxDos2UnixFilename(char *s);
  69 #define Dos2UnixFilename wxDos2UnixFilename
  70
  71 WXDLLEXPORT void wxUnix2DosFilename(char *s);
  72 #define Unix2DosFilename wxUnix2DosFilename
  73
  74 // Strip the extension, in situ
  75 WXDLLEXPORT void wxStripExtension(char *buffer);
  76 WXDLLEXPORT void wxStripExtension(wxString& buffer);
  77
  78 // Get a temporary filename, opening and closing the file.
  79 WXDLLEXPORT char* wxGetTempFileName(const wxString& prefix, char *buf = (char *) NULL);
  80
  81 // Expand file name (~/ and ${OPENWINHOME}/ stuff)
  82 WXDLLEXPORT char* wxExpandPath(char *dest, const char *path);
  83
  84 // Contract w.r.t environment (</usr/openwin/lib, OPENWHOME> -> ${OPENWINHOME}/lib)
  85 // and make (if under the home tree) relative to home
  86 // [caller must copy-- volatile]
  87 WXDLLEXPORT char* wxContractPath (const wxString& filename,
  88    const wxString& envname = "", const wxString& user = "");
  89
  90 // Destructive removal of /./ and /../ stuff
  91 WXDLLEXPORT char* wxRealPath(char *path);
  92
  93 // Allocate a copy of the full absolute path
  94 WXDLLEXPORT char* wxCopyAbsolutePath(const wxString& path);
  95
  96 // Get first file name matching given wild card.
  97 // Flags are reserved for future use.
  98 #define wxFILE  1
  99 #define wxDIR   2
 100 WXDLLEXPORT char* wxFindFirstFile(const char *spec, int flags = wxFILE);
 101 WXDLLEXPORT char* wxFindNextFile(void);
 102
 103 // Does the pattern contain wildcards?
 104 WXDLLEXPORT bool wxIsWild(const wxString& pattern);
 105
 106 // Does the pattern match the text (usually a filename)?
 107 // If dot_special is TRUE, doesn't match * against . (eliminating
 108 // `hidden' dot files)
 109 WXDLLEXPORT bool wxMatchWild(const wxString& pattern,  const wxString& text, bool dot_special = TRUE);
 110
 111 // Concatenate two files to form third
 112 WXDLLEXPORT bool wxConcatFiles(const wxString& file1, const wxString& file2, const wxString& file3);
 113
 114 // Copy file1 to file2
 115 WXDLLEXPORT bool wxCopyFile(const wxString& file1, const wxString& file2);
 116
 117 // Remove file
 118 WXDLLEXPORT bool wxRemoveFile(const wxString& file);
 119
 120 // Rename file
 121 WXDLLEXPORT bool wxRenameFile(const wxString& file1, const wxString& file2);
 122
 123 // Get current working directory.
 124 // If buf is NULL, allocates space using new, else
 125 // copies into buf.
 126 // IMPORTANT NOTE getcwd is know not to work under some releases
 127 // of Win32s 1.3, according to MS release notes!
 128 WXDLLEXPORT char* wxGetWorkingDirectory(char *buf = (char *) NULL, int sz = 1000);
 129
 130 // Set working directory
 131 WXDLLEXPORT bool wxSetWorkingDirectory(const wxString& d);
 132
 133 // Make directory
 134 WXDLLEXPORT bool wxMkdir(const wxString& dir);
 135
 136 // Remove directory. Flags reserved for future use.
 137 WXDLLEXPORT bool wxRmdir(const wxString& dir, int flags = 0);
 138
 139 // separators in file names
 140 #define FILE_SEP_EXT        '.'
 141 #define FILE_SEP_DSK        ':'
 142 #define FILE_SEP_PATH_DOS   '\\'
 143 #define FILE_SEP_PATH_UNIX  '/'
 144
 145 // separator in the path list (as in PATH environment variable)
 146 // NB: these are strings and not characters on purpose!
 147 #define PATH_SEP_DOS        ";"
 148 #define PATH_SEP_UNIX       ":"
 149
 150 // platform independent versions
 151 #ifdef  __UNIX__
 152   #define FILE_SEP_PATH     FILE_SEP_PATH_UNIX
 153   #define PATH_SEP          PATH_SEP_UNIX
 154 #else   // Windows
 155   #define FILE_SEP_PATH     FILE_SEP_PATH_DOS
 156   #define PATH_SEP          PATH_SEP_DOS
 157 #endif  // Unix/Windows
 158
 159 // this is useful for wxString::IsSameAs(): to compare two file names use
 160 // filename1.IsSameAs(filename2, wxARE_FILENAMES_CASE_SENSITIVE)
 161 #ifdef  __UNIX__
 162   #define wxARE_FILENAMES_CASE_SENSITIVE  TRUE
 163 #else   // Windows
 164   #define wxARE_FILENAMES_CASE_SENSITIVE  FALSE
 165 #endif  // Unix/Windows
 166
 167 // is the char a path separator?
 168 inline bool wxIsPathSeparator(char c)
 169   { return c == FILE_SEP_PATH_DOS || c == FILE_SEP_PATH_UNIX; }
 170
 171 // does the string ends with path separator?
 172 WXDLLEXPORT bool wxEndsWithPathSeparator(const char *pszFileName);
 173
 174 // split the full path into path (including drive for DOS), name and extension
 175 // (understands both '/' and '\\')
 176 WXDLLEXPORT void wxSplitPath(const char *pszFileName,
 177                              wxString *pstrPath,
 178                              wxString *pstrName,
 179                              wxString *pstrExt);
 180
 181 // find a file in a list of directories, returns false if not found
 182 WXDLLEXPORT bool wxFindFileInPath(wxString *pStr, const char *pszPath, const char *pszFile);
 183
 184 // ----------------------------------------------------------------------------
 185 // classes
 186 // ----------------------------------------------------------------------------
 187
 188 // Path searching
 189 class WXDLLEXPORT wxPathList : public wxStringList
 190 {
 191 public:
 192     void AddEnvList(const wxString& envVariable);    // Adds all paths in environment variable
 193     void Add(const wxString& path);
 194     wxString FindValidPath(const wxString& filename);   // Find the first full path
 195     // for which the file exists
 196     wxString FindAbsoluteValidPath(const wxString& filename);   // Find the first full path
 197     // for which the file exists; ensure it's an absolute
 198     // path that gets returned.
 199     void EnsureFileAccessible(const wxString& path); // Given full path and filename,
 200     // add path to list
 201     bool Member(const wxString& path);
 202
 203 private:
 204     DECLARE_DYNAMIC_CLASS(wxPathList)
 205 };
 206
 207 #endif
 208   // _WX_FILEFN_H_
 209