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filefn.cpp
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2002-11-22
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/////////////////////////////////////////////////////////////////////////////
// Name: filefn.cpp
// Purpose: File- and directory-related functions
// Author: Julian Smart
// Modified by:
// Created: 29/01/98
// RCS-ID: $Id: filefn.cpp,v 1.159.2.6 2002/11/21 21:49:20 RR Exp $
// Copyright: (c) 1998 Julian Smart
// Licence: wxWindows license
/////////////////////////////////////////////////////////////////////////////
// ============================================================================
// declarations
// ============================================================================
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
#ifdef __GNUG__
#pragma implementation "filefn.h"
#endif
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#include "wx/defs.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#include "wx/utils.h"
#include "wx/intl.h"
#include "wx/file.h"
#include "wx/filename.h"
#include "wx/dir.h"
// there are just too many of those...
#ifdef __VISUALC__
#pragma warning(disable:4706) // assignment within conditional expression
#endif // VC++
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#if !defined(__WATCOMC__)
#if !(defined(_MSC_VER) && (_MSC_VER > 800))
#include <errno.h>
#endif
#endif
#if defined(__WXMAC__)
#include "wx/mac/private.h" // includes mac headers
#endif
#include <time.h>
#ifndef __MWERKS__
#include <sys/types.h>
#include <sys/stat.h>
#else
#include <stat.h>
#include <unistd.h>
#include <unix.h>
#endif
#ifdef __UNIX__
#include <unistd.h>
#include <dirent.h>
#include <fcntl.h>
#endif
#ifdef __WXPM__
#include <process.h>
#include "wx/os2/private.h"
#endif
#if defined(__WINDOWS__) && !defined(__WXMICROWIN__) && !defined(__WXWINE__)
#if !defined( __GNUWIN32__ ) && !defined( __MWERKS__ ) && !defined(__SALFORDC__)
#include <direct.h>
#include <dos.h>
#include <io.h>
#endif // __WINDOWS__
#endif // native Win compiler
#if defined(__DOS__)
#ifdef __WATCOMC__
#include <direct.h>
#include <dos.h>
#include <io.h>
#endif
#ifdef __DJGPP__
#include <unistd.h>
#endif
#endif
#ifdef __BORLANDC__ // Please someone tell me which version of Borland needs
// this (3.1 I believe) and how to test for it.
// If this works for Borland 4.0 as well, then no worries.
#include <dir.h>
#endif
#ifdef __SALFORDC__
#include <dir.h>
#include <unix.h>
#endif
#include "wx/log.h"
// No, Cygwin doesn't appear to have fnmatch.h after all.
#if defined(HAVE_FNMATCH_H)
#include "fnmatch.h"
#endif
#ifdef __WINDOWS__
#include <windows.h>
#include "wx/msw/mslu.h"
// sys/cygwin.h is needed for cygwin_conv_to_full_win32_path()
//
// note that it must be included after <windows.h>
#ifdef __GNUWIN32__
#ifdef __CYGWIN__
#include <sys/cygwin.h>
#endif
#ifndef __TWIN32__
#include <sys/unistd.h>
#endif
#endif // __GNUWIN32__
#endif // __WINDOWS__
// TODO: Borland probably has _wgetcwd as well?
#ifdef _MSC_VER
#define HAVE_WGETCWD
#endif
// ----------------------------------------------------------------------------
// constants
// ----------------------------------------------------------------------------
#ifndef _MAXPATHLEN
#define _MAXPATHLEN 1024
#endif
#ifdef __WXMAC__
# include "MoreFiles.h"
# include "MoreFilesExtras.h"
# include "FullPath.h"
# include "FSpCompat.h"
#endif
// ----------------------------------------------------------------------------
// private globals
// ----------------------------------------------------------------------------
// MT-FIXME: get rid of this horror and all code using it
static wxChar wxFileFunctionsBuffer[4*_MAXPATHLEN];
#if defined(__VISAGECPP__) && __IBMCPP__ >= 400
//
// VisualAge C++ V4.0 cannot have any external linkage const decs
// in headers included by more than one primary source
//
const off_t wxInvalidOffset = (off_t)-1;
#endif
// ----------------------------------------------------------------------------
// macros
// ----------------------------------------------------------------------------
// we need to translate Mac filenames before passing them to OS functions
#define OS_FILENAME(s) (s.fn_str())
// ============================================================================
// implementation
// ============================================================================
#ifdef wxNEED_WX_UNISTD_H
WXDLLEXPORT int wxStat( const wxChar *file_name, wxStructStat *buf )
{
return stat( wxConvFile.cWX2MB( file_name ), buf );
}
WXDLLEXPORT int wxAccess( const wxChar *pathname, int mode )
{
return access( wxConvFile.cWX2MB( pathname ), mode );
}
WXDLLEXPORT int wxOpen( const wxChar *pathname, int flags, mode_t mode )
{
return open( wxConvFile.cWX2MB( pathname ), flags, mode );
}
#endif
// wxNEED_WX_UNISTD_H
// ----------------------------------------------------------------------------
// wxPathList
// ----------------------------------------------------------------------------
IMPLEMENT_DYNAMIC_CLASS(wxPathList, wxStringList)
void wxPathList::Add (const wxString& path)
{
wxStringList::Add (WXSTRINGCAST path);
}
// Add paths e.g. from the PATH environment variable
void wxPathList::AddEnvList (const wxString& envVariable)
{
static const wxChar PATH_TOKS[] =
#ifdef __WINDOWS__
wxT(" ;"); // Don't seperate with colon in DOS (used for drive)
#else
wxT(" :;");
#endif
wxChar *val = wxGetenv (WXSTRINGCAST envVariable);
if (val && *val)
{
wxChar *s = copystring (val);
wxChar *save_ptr, *token = wxStrtok (s, PATH_TOKS, &save_ptr);
if (token)
{
Add (copystring (token));
while (token)
{
if ((token = wxStrtok ((wxChar *) NULL, PATH_TOKS, &save_ptr)) != NULL)
Add (wxString(token));
}
}
// suppress warning about unused variable save_ptr when wxStrtok() is a
// macro which throws away its third argument
save_ptr = token;
delete [] s;
}
}
// Given a full filename (with path), ensure that that file can
// be accessed again USING FILENAME ONLY by adding the path
// to the list if not already there.
void wxPathList::EnsureFileAccessible (const wxString& path)
{
wxString path_only(wxPathOnly(path));
if ( !path_only.IsEmpty() )
{
if ( !Member(path_only) )
Add(path_only);
}
}
bool wxPathList::Member (const wxString& path)
{
for (wxNode * node = First (); node != NULL; node = node->Next ())
{
wxString path2((wxChar *) node->Data ());
if (
#if defined(__WINDOWS__) || defined(__VMS__) || defined (__WXMAC__)
// Case INDEPENDENT
path.CompareTo (path2, wxString::ignoreCase) == 0
#else
// Case sensitive File System
path.CompareTo (path2) == 0
#endif
)
return TRUE;
}
return FALSE;
}
wxString wxPathList::FindValidPath (const wxString& file)
{
if (wxFileExists (wxExpandPath(wxFileFunctionsBuffer, file)))
return wxString(wxFileFunctionsBuffer);
wxChar buf[_MAXPATHLEN];
wxStrcpy(buf, wxFileFunctionsBuffer);
wxChar *filename = (wxChar*) NULL; /* shut up buggy egcs warning */
filename = wxIsAbsolutePath (buf) ? wxFileNameFromPath (buf) : (wxChar *)buf;
for (wxNode * node = First (); node; node = node->Next ())
{
wxChar *path = (wxChar *) node->Data ();
wxStrcpy (wxFileFunctionsBuffer, path);
wxChar ch = wxFileFunctionsBuffer[wxStrlen(wxFileFunctionsBuffer)-1];
if (ch != wxT('\\') && ch != wxT('/'))
wxStrcat (wxFileFunctionsBuffer, wxT("/"));
wxStrcat (wxFileFunctionsBuffer, filename);
#ifdef __WINDOWS__
wxUnix2DosFilename (wxFileFunctionsBuffer);
#endif
if (wxFileExists (wxFileFunctionsBuffer))
{
return wxString(wxFileFunctionsBuffer); // Found!
}
} // for()
return wxString(wxT("")); // Not found
}
wxString wxPathList::FindAbsoluteValidPath (const wxString& file)
{
wxString f = FindValidPath(file);
if ( wxIsAbsolutePath(f) )
return f;
wxString buf;
wxGetWorkingDirectory(wxStringBuffer(buf, _MAXPATHLEN), _MAXPATHLEN);
if ( !wxEndsWithPathSeparator(buf) )
{
buf += wxFILE_SEP_PATH;
}
buf += f;
return buf;
}
bool
wxFileExists (const wxString& filename)
{
// we must use GetFileAttributes() instead of the ANSI C functions because
// it can cope with network (UNC) paths unlike them
#if defined(__WIN32__) && !defined(__WXMICROWIN__)
DWORD ret = ::GetFileAttributes(filename);
return (ret != (DWORD)-1) && !(ret & FILE_ATTRIBUTE_DIRECTORY);
#else // !__WIN32__
wxStructStat st;
return wxStat(filename, &st) == 0 && (st.st_mode & S_IFREG);
#endif // __WIN32__/!__WIN32__
}
bool
wxIsAbsolutePath (const wxString& filename)
{
if (filename != wxT(""))
{
#if defined(__WXMAC__) && !defined(__DARWIN__)
// Classic or Carbon CodeWarrior like
// Carbon with Apple DevTools is Unix like
// This seems wrong to me, but there is no fix. since
// "MacOS:MyText.txt" is absolute whereas "MyDir:MyText.txt"
// is not. Or maybe ":MyDir:MyText.txt" has to be used? RR.
if (filename.Find(':') != wxNOT_FOUND && filename[0] != ':')
return TRUE ;
#else
// Unix like or Windows
if (filename[0] == wxT('/'))
return TRUE;
#endif
#ifdef __VMS__
if ((filename[0] == wxT('[') && filename[1] != wxT('.')))
return TRUE;
#endif
#ifdef __WINDOWS__
// MSDOS like
if (filename[0] == wxT('\\') || (wxIsalpha (filename[0]) && filename[1] == wxT(':')))
return TRUE;
#endif
}
return FALSE ;
}
/*
* Strip off any extension (dot something) from end of file,
* IF one exists. Inserts zero into buffer.
*
*/
void wxStripExtension(wxChar *buffer)
{
int len = wxStrlen(buffer);
int i = len-1;
while (i > 0)
{
if (buffer[i] == wxT('.'))
{
buffer[i] = 0;
break;
}
i --;
}
}
void wxStripExtension(wxString& buffer)
{
size_t len = buffer.Length();
size_t i = len-1;
while (i > 0)
{
if (buffer.GetChar(i) == wxT('.'))
{
buffer = buffer.Left(i);
break;
}
i --;
}
}
// Destructive removal of /./ and /../ stuff
wxChar *wxRealPath (wxChar *path)
{
#ifdef __WXMSW__
static const wxChar SEP = wxT('\\');
wxUnix2DosFilename(path);
#else
static const wxChar SEP = wxT('/');
#endif
if (path[0] && path[1]) {
/* MATTHEW: special case "/./x" */
wxChar *p;
if (path[2] == SEP && path[1] == wxT('.'))
p = &path[0];
else
p = &path[2];
for (; *p; p++)
{
if (*p == SEP)
{
if (p[1] == wxT('.') && p[2] == wxT('.') && (p[3] == SEP || p[3] == wxT('\0')))
{
wxChar *q;
for (q = p - 1; q >= path && *q != SEP; q--);
if (q[0] == SEP && (q[1] != wxT('.') || q[2] != wxT('.') || q[3] != SEP)
&& (q - 1 <= path || q[-1] != SEP))
{
wxStrcpy (q, p + 3);
if (path[0] == wxT('\0'))
{
path[0] = SEP;
path[1] = wxT('\0');
}
#ifdef __WXMSW__
/* Check that path[2] is NULL! */
else if (path[1] == wxT(':') && !path[2])
{
path[2] = SEP;
path[3] = wxT('\0');
}
#endif
p = q - 1;
}
}
else if (p[1] == wxT('.') && (p[2] == SEP || p[2] == wxT('\0')))
wxStrcpy (p, p + 2);
}
}
}
return path;
}
// Must be destroyed
wxChar *wxCopyAbsolutePath(const wxString& filename)
{
if (filename == wxT(""))
return (wxChar *) NULL;
if (! wxIsAbsolutePath(wxExpandPath(wxFileFunctionsBuffer, filename))) {
wxChar buf[_MAXPATHLEN];
buf[0] = wxT('\0');
wxGetWorkingDirectory(buf, WXSIZEOF(buf));
wxChar ch = buf[wxStrlen(buf) - 1];
#ifdef __WXMSW__
if (ch != wxT('\\') && ch != wxT('/'))
wxStrcat(buf, wxT("\\"));
#else
if (ch != wxT('/'))
wxStrcat(buf, wxT("/"));
#endif
wxStrcat(buf, wxFileFunctionsBuffer);
return copystring( wxRealPath(buf) );
}
return copystring( wxFileFunctionsBuffer );
}
/*-
Handles:
~/ => home dir
~user/ => user's home dir
If the environment variable a = "foo" and b = "bar" then:
Unix:
$a => foo
$a$b => foobar
$a.c => foo.c
xxx$a => xxxfoo
${a}! => foo!
$(b)! => bar!
\$a => \$a
MSDOS:
$a ==> $a
$(a) ==> foo
$(a)$b ==> foo$b
$(a)$(b)==> foobar
test.$$ ==> test.$$
*/
/* input name in name, pathname output to buf. */
wxChar *wxExpandPath(wxChar *buf, const wxChar *name)
{
register wxChar *d, *s, *nm;
wxChar lnm[_MAXPATHLEN];
int q;
// Some compilers don't like this line.
// const wxChar trimchars[] = wxT("\n \t");
wxChar trimchars[4];
trimchars[0] = wxT('\n');
trimchars[1] = wxT(' ');
trimchars[2] = wxT('\t');
trimchars[3] = 0;
#ifdef __WXMSW__
const wxChar SEP = wxT('\\');
#else
const wxChar SEP = wxT('/');
#endif
buf[0] = wxT('\0');
if (name == NULL || *name == wxT('\0'))
return buf;
nm = copystring(name); // Make a scratch copy
wxChar *nm_tmp = nm;
/* Skip leading whitespace and cr */
while (wxStrchr((wxChar *)trimchars, *nm) != NULL)
nm++;
/* And strip off trailing whitespace and cr */
s = nm + (q = wxStrlen(nm)) - 1;
while (q-- && wxStrchr((wxChar *)trimchars, *s) != NULL)
*s = wxT('\0');
s = nm;
d = lnm;
#ifdef __WXMSW__
q = FALSE;
#else
q = nm[0] == wxT('\\') && nm[1] == wxT('~');
#endif
/* Expand inline environment variables */
#ifdef __VISAGECPP__
while (*d)
{
*d++ = *s;
if(*s == wxT('\\'))
{
*(d - 1) = *++s;
if (*d)
{
s++;
continue;
}
else
break;
}
else
#else
while ((*d++ = *s) != 0) {
# ifndef __WXMSW__
if (*s == wxT('\\')) {
if ((*(d - 1) = *++s)) {
s++;
continue;
} else
break;
} else
# endif
#endif
#ifdef __WXMSW__
if (*s++ == wxT('$') && (*s == wxT('{') || *s == wxT(')')))
#else
if (*s++ == wxT('$'))
#endif
{
register wxChar *start = d;
register int braces = (*s == wxT('{') || *s == wxT('('));
register wxChar *value;
while ((*d++ = *s) != 0)
if (braces ? (*s == wxT('}') || *s == wxT(')')) : !(wxIsalnum(*s) || *s == wxT('_')) )
break;
else
s++;
*--d = 0;
value = wxGetenv(braces ? start + 1 : start);
if (value) {
for ((d = start - 1); (*d++ = *value++) != 0;);
d--;
if (braces && *s)
s++;
}
}
}
/* Expand ~ and ~user */
nm = lnm;
if (nm[0] == wxT('~') && !q)
{
/* prefix ~ */
if (nm[1] == SEP || nm[1] == 0)
{ /* ~/filename */
// FIXME: wxGetUserHome could return temporary storage in Unicode mode
if ((s = WXSTRINGCAST wxGetUserHome(wxT(""))) != NULL) {
if (*++nm)
nm++;
}
} else
{ /* ~user/filename */
register wxChar *nnm;
register wxChar *home;
for (s = nm; *s && *s != SEP; s++);
int was_sep; /* MATTHEW: Was there a separator, or NULL? */
was_sep = (*s == SEP);
nnm = *s ? s + 1 : s;
*s = 0;
// FIXME: wxGetUserHome could return temporary storage in Unicode mode
if ((home = WXSTRINGCAST wxGetUserHome(wxString(nm + 1))) == NULL) {
if (was_sep) /* replace only if it was there: */
*s = SEP;
s = NULL;
} else {
nm = nnm;
s = home;
}
}
}
d = buf;
if (s && *s) { /* MATTHEW: s could be NULL if user '~' didn't exist */
/* Copy home dir */
while (wxT('\0') != (*d++ = *s++))
/* loop */;
// Handle root home
if (d - 1 > buf && *(d - 2) != SEP)
*(d - 1) = SEP;
}
s = nm;
while ((*d++ = *s++) != 0);
delete[] nm_tmp; // clean up alloc
/* Now clean up the buffer */
return wxRealPath(buf);
}
/* Contract Paths to be build upon an environment variable
component:
example: "/usr/openwin/lib", OPENWINHOME --> ${OPENWINHOME}/lib
The call wxExpandPath can convert these back!
*/
wxChar *
wxContractPath (const wxString& filename, const wxString& envname, const wxString& user)
{
static wxChar dest[_MAXPATHLEN];
if (filename == wxT(""))
return (wxChar *) NULL;
wxStrcpy (dest, WXSTRINGCAST filename);
#ifdef __WXMSW__
wxUnix2DosFilename(dest);
#endif
// Handle environment
const wxChar *val = (const wxChar *) NULL;
wxChar *tcp = (wxChar *) NULL;
if (envname != WXSTRINGCAST NULL && (val = wxGetenv (WXSTRINGCAST envname)) != NULL &&
(tcp = wxStrstr (dest, val)) != NULL)
{
wxStrcpy (wxFileFunctionsBuffer, tcp + wxStrlen (val));
*tcp++ = wxT('$');
*tcp++ = wxT('{');
wxStrcpy (tcp, WXSTRINGCAST envname);
wxStrcat (tcp, wxT("}"));
wxStrcat (tcp, wxFileFunctionsBuffer);
}
// Handle User's home (ignore root homes!)
size_t len = 0;
if ((val = wxGetUserHome (user)) != NULL &&
(len = wxStrlen(val)) > 2 &&
wxStrncmp(dest, val, len) == 0)
{
wxStrcpy(wxFileFunctionsBuffer, wxT("~"));
if (user != wxT(""))
wxStrcat(wxFileFunctionsBuffer, (const wxChar*) user);
wxStrcat(wxFileFunctionsBuffer, dest + len);
wxStrcpy (dest, wxFileFunctionsBuffer);
}
return dest;
}
// Return just the filename, not the path (basename)
wxChar *wxFileNameFromPath (wxChar *path)
{
wxString p = path;
wxString n = wxFileNameFromPath(p);
return path + p.length() - n.length();
}
wxString wxFileNameFromPath (const wxString& path)
{
wxString name, ext;
wxFileName::SplitPath(path, NULL, &name, &ext);
wxString fullname = name;
if ( !ext.empty() )
{
fullname << wxFILE_SEP_EXT << ext;
}
return fullname;
}
// Return just the directory, or NULL if no directory
wxChar *
wxPathOnly (wxChar *path)
{
if (path && *path)
{
static wxChar buf[_MAXPATHLEN];
// Local copy
wxStrcpy (buf, path);
int l = wxStrlen(path);
int i = l - 1;
// Search backward for a backward or forward slash
while (i > -1)
{
#if defined(__WXMAC__) && !defined(__DARWIN__)
// Classic or Carbon CodeWarrior like
// Carbon with Apple DevTools is Unix like
if (path[i] == wxT(':') )
{
buf[i] = 0;
return buf;
}
#else
// Unix like or Windows
if (path[i] == wxT('/') || path[i] == wxT('\\'))
{
buf[i] = 0;
return buf;
}
#endif
#ifdef __VMS__
if (path[i] == wxT(']'))
{
buf[i+1] = 0;
return buf;
}
#endif
i --;
}
#if defined(__WXMSW__) || defined(__WXPM__)
// Try Drive specifier
if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
{
// A:junk --> A:. (since A:.\junk Not A:\junk)
buf[2] = wxT('.');
buf[3] = wxT('\0');
return buf;
}
#endif
}
return (wxChar *) NULL;
}
// Return just the directory, or NULL if no directory
wxString wxPathOnly (const wxString& path)
{
if (path != wxT(""))
{
wxChar buf[_MAXPATHLEN];
// Local copy
wxStrcpy (buf, WXSTRINGCAST path);
int l = path.Length();
int i = l - 1;
// Search backward for a backward or forward slash
while (i > -1)
{
#if defined(__WXMAC__) && !defined(__DARWIN__)
// Classic or Carbon CodeWarrior like
// Carbon with Apple DevTools is Unix like
if (path[i] == wxT(':') )
{
buf[i] = 0;
return wxString(buf);
}
#else
// Unix like or Windows
if (path[i] == wxT('/') || path[i] == wxT('\\'))
{
buf[i] = 0;
return wxString(buf);
}
#endif
#ifdef __VMS__
if (path[i] == wxT(']'))
{
buf[i+1] = 0;
return wxString(buf);
}
#endif
i --;
}
#if defined(__WXMSW__) || defined(__WXPM__)
// Try Drive specifier
if (wxIsalpha (buf[0]) && buf[1] == wxT(':'))
{
// A:junk --> A:. (since A:.\junk Not A:\junk)
buf[2] = wxT('.');
buf[3] = wxT('\0');
return wxString(buf);
}
#endif
}
return wxString(wxT(""));
}
// Utility for converting delimiters in DOS filenames to UNIX style
// and back again - or we get nasty problems with delimiters.
// Also, convert to lower case, since case is significant in UNIX.
#if defined(__WXMAC__)
wxString wxMacFSSpec2MacFilename( const FSSpec *spec )
{
#ifdef __DARWIN__
int i;
int j;
OSErr theErr;
OSStatus theStatus;
Boolean isDirectory = false;
Str255 theParentPath = "\p";
FSSpec theParentSpec;
FSRef theParentRef;
char theFileName[FILENAME_MAX];
char thePath[FILENAME_MAX];
strcpy(thePath, "");
// GD: Separate file name from path and make a FSRef to the parent
// directory. This is necessary since FSRefs cannot reference files
// that have not yet been created.
// Based on example code from Apple Technical Note TN2022
// http://developer.apple.com/technotes/tn/tn2022.html
// check whether we are converting a directory
isDirectory = ((spec->name)[spec->name[0]] == ':');
// count length of file name
for (i = spec->name[0] - (isDirectory ? 1 : 0); ((spec->name[i] != ':') && (i > 0)); i--);
// copy file name
// prepend path separator since it will later be appended to the path
theFileName[0] = wxFILE_SEP_PATH;
for (j = i + 1; j <= spec->name[0] - (isDirectory ? 1 : 0); j++) {
theFileName[j - i] = spec->name[j];
}
theFileName[j - i] = '\0';
// copy path if any
for (j = 1; j <= i; j++) {
theParentPath[++theParentPath[0]] = spec->name[j];
}
theErr = FSMakeFSSpec(spec->vRefNum, spec->parID, theParentPath, &theParentSpec);
if (theErr == noErr) {
// convert the FSSpec to an FSRef
theErr = FSpMakeFSRef(&theParentSpec, &theParentRef);
}
if (theErr == noErr) {
// get the POSIX path associated with the FSRef
theStatus = FSRefMakePath(&theParentRef,
(UInt8 *)thePath, sizeof(thePath));
}
if (theStatus == noErr) {
// append file name to path
// includes previously prepended path separator
strcat(thePath, theFileName);
}
// create path string for return value
wxString result( thePath ) ;
#else
Handle myPath ;
short length ;
// get length of path and allocate handle
FSpGetFullPath( spec , &length , &myPath ) ;
::SetHandleSize( myPath , length + 1 ) ;
::HLock( myPath ) ;
(*myPath)[length] = 0 ;
if ((length > 0) && ((*myPath)[length-1] == ':'))
(*myPath)[length-1] = 0 ;
// create path string for return value
wxString result( (char*) *myPath ) ;
// free allocated handle
::HUnlock( myPath ) ;
::DisposeHandle( myPath ) ;
#endif
return result ;
}
#ifndef __DARWIN__
// Mac file names are POSIX (Unix style) under Darwin
// therefore the conversion functions below are not needed
static char sMacFileNameConversion[ 1000 ] ;
#endif
void wxMacFilename2FSSpec( const char *path , FSSpec *spec )
{
OSStatus err = noErr ;
#ifdef __DARWIN__
FSRef theRef;
// get the FSRef associated with the POSIX path
err = FSPathMakeRef((const UInt8 *) path, &theRef, NULL);
// convert the FSRef to an FSSpec
err = FSGetCatalogInfo(&theRef, kFSCatInfoNone, NULL, NULL, spec, NULL);
#else
if ( strchr( path , ':' ) == NULL )
{
// try whether it is a volume / or a mounted volume
strncpy( sMacFileNameConversion , path , 1000 ) ;
sMacFileNameConversion[998] = 0 ;
strcat( sMacFileNameConversion , ":" ) ;
err = FSpLocationFromFullPath( strlen(sMacFileNameConversion) , sMacFileNameConversion , spec ) ;
}
else
{
err = FSpLocationFromFullPath( strlen(path) , path , spec ) ;
}
#endif
}
#ifndef __DARWIN__
wxString wxMac2UnixFilename (const char *str)
{
char *s = sMacFileNameConversion ;
strcpy( s , str ) ;
if (s)
{
memmove( s+1 , s ,strlen( s ) + 1) ;
if ( *s == ':' )
*s = '.' ;
else
*s = '/' ;
while (*s)
{
if (*s == ':')
*s = '/';
else
*s = wxTolower(*s); // Case INDEPENDENT
s++;
}
}
return wxString(sMacFileNameConversion) ;
}
wxString wxUnix2MacFilename (const char *str)
{
char *s = sMacFileNameConversion ;
strcpy( s , str ) ;
if (s)
{
if ( *s == '.' )
{
// relative path , since it goes on with slash which is translated to a :
memmove( s , s+1 ,strlen( s ) ) ;
}
else if ( *s == '/' )
{
// absolute path -> on mac just start with the drive name
memmove( s , s+1 ,strlen( s ) ) ;
}
else
{
wxASSERT_MSG( 1 , "unkown path beginning" ) ;
}
while (*s)
{
if (*s == '/' || *s == '\\')
{
// convert any back-directory situations
if ( *(s+1) == '.' && *(s+2) == '.' && ( (*(s+3) == '/' || *(s+3) == '\\') ) )
{
*s = ':';
memmove( s+1 , s+3 ,strlen( s+3 ) + 1 ) ;
}
else
*s = ':';
}
s++ ;
}
}
return wxString (sMacFileNameConversion) ;
}
wxString wxMacFSSpec2UnixFilename( const FSSpec *spec )
{
return wxMac2UnixFilename( wxMacFSSpec2MacFilename( spec) ) ;
}
void wxUnixFilename2FSSpec( const char *path , FSSpec *spec )
{
wxString var = wxUnix2MacFilename( path ) ;
wxMacFilename2FSSpec( var , spec ) ;
}
#endif // ! __DARWIN__
#endif // __WXMAC__
void
wxDos2UnixFilename (char *s)
{
if (s)
while (*s)
{
if (*s == '\\')
*s = '/';
#ifdef __WXMSW__
else
*s = wxTolower (*s); // Case INDEPENDENT
#endif
s++;
}
}
void
#if defined(__WXMSW__) || defined(__WXPM__)
wxUnix2DosFilename (wxChar *s)
#else
wxUnix2DosFilename (wxChar *WXUNUSED(s) )
#endif
{
// Yes, I really mean this to happen under DOS only! JACS
#if defined(__WXMSW__) || defined(__WXPM__)
if (s)
while (*s)
{
if (*s == wxT('/'))
*s = wxT('\\');
s++;
}
#endif
}
// Concatenate two files to form third
bool
wxConcatFiles (const wxString& file1, const wxString& file2, const wxString& file3)
{
wxString outfile;
if ( !wxGetTempFileName( wxT("cat"), outfile) )
return FALSE;
FILE *fp1 = (FILE *) NULL;
FILE *fp2 = (FILE *) NULL;
FILE *fp3 = (FILE *) NULL;
// Open the inputs and outputs
if ((fp1 = wxFopen ( file1, wxT("rb"))) == NULL ||
(fp2 = wxFopen ( file2, wxT("rb"))) == NULL ||
(fp3 = wxFopen ( outfile, wxT("wb"))) == NULL)
{
if (fp1)
fclose (fp1);
if (fp2)
fclose (fp2);
if (fp3)
fclose (fp3);
return FALSE;
}
int ch;
while ((ch = getc (fp1)) != EOF)
(void) putc (ch, fp3);
fclose (fp1);
while ((ch = getc (fp2)) != EOF)
(void) putc (ch, fp3);
fclose (fp2);
fclose (fp3);
bool result = wxRenameFile(outfile, file3);
return result;
}
// Copy files
bool
wxCopyFile (const wxString& file1, const wxString& file2, bool overwrite)
{
#if defined(__WIN32__) && !defined(__WXMICROWIN__)
// CopyFile() copies file attributes and modification time too, so use it
// instead of our code if available
//
// NB: 3rd parameter is bFailIfExists i.e. the inverse of overwrite
if ( !::CopyFile(file1, file2, !overwrite) )
{
wxLogSysError(_("Failed to copy the file '%s' to '%s'"),
file1.c_str(), file2.c_str());
return FALSE;
}
#elif defined(__WXPM__)
if ( ::DosCopy(file2, file2, overwrite ? DCPY_EXISTING : 0) != 0 )
return FALSE;
#else // !Win32
wxStructStat fbuf;
// get permissions of file1
if ( wxStat( file1.c_str(), &fbuf) != 0 )
{
// the file probably doesn't exist or we haven't the rights to read
// from it anyhow
wxLogSysError(_("Impossible to get permissions for file '%s'"),
file1.c_str());
return FALSE;
}
// open file1 for reading
wxFile fileIn(file1, wxFile::read);
if ( !fileIn.IsOpened() )
return FALSE;
// remove file2, if it exists. This is needed for creating
// file2 with the correct permissions in the next step
if ( wxFileExists(file2) && (!overwrite || !wxRemoveFile(file2)))
{
wxLogSysError(_("Impossible to overwrite the file '%s'"),
file2.c_str());
return FALSE;
}
#ifdef __UNIX__
// reset the umask as we want to create the file with exactly the same
// permissions as the original one
mode_t oldUmask = umask( 0 );
#endif // __UNIX__
// create file2 with the same permissions than file1 and open it for
// writing
wxFile fileOut;
if ( !fileOut.Create(file2, overwrite, fbuf.st_mode & 0777) )
return FALSE;
#ifdef __UNIX__
/// restore the old umask
umask(oldUmask);
#endif // __UNIX__
// copy contents of file1 to file2
char buf[4096];
size_t count;
for ( ;; )
{
count = fileIn.Read(buf, WXSIZEOF(buf));
if ( fileIn.Error() )
return FALSE;
// end of file?
if ( !count )
break;
if ( fileOut.Write(buf, count) < count )
return FALSE;
}
// we can expect fileIn to be closed successfully, but we should ensure
// that fileOut was closed as some write errors (disk full) might not be
// detected before doing this
if ( !fileIn.Close() || !fileOut.Close() )
return FALSE;
#if !defined(__VISAGECPP__) && !defined(__WXMAC__) || defined(__UNIX__)
// no chmod in VA. Should be some permission API for HPFS386 partitions
// however
if ( chmod(OS_FILENAME(file2), fbuf.st_mode) != 0 )
{
wxLogSysError(_("Impossible to set permissions for the file '%s'"),
file2.c_str());
return FALSE;
}
#endif // OS/2 || Mac
#endif // __WXMSW__ && __WIN32__
return TRUE;
}
bool
wxRenameFile (const wxString& file1, const wxString& file2)
{
// Normal system call
if ( wxRename (file1, file2) == 0 )
return TRUE;
// Try to copy
if (wxCopyFile(file1, file2)) {
wxRemoveFile(file1);
return TRUE;
}
// Give up
return FALSE;
}
bool wxRemoveFile(const wxString& file)
{
#if defined(__VISUALC__) \
|| defined(__BORLANDC__) \
|| defined(__WATCOMC__) \
|| defined(__GNUWIN32__)
int res = wxRemove(file);
#else
int res = unlink(OS_FILENAME(file));
#endif
return res == 0;
}
bool wxMkdir(const wxString& dir, int perm)
{
#if defined(__WXMAC__) && !defined(__UNIX__)
return (mkdir( dir , 0 ) == 0);
#else // !Mac
const wxChar *dirname = dir.c_str();
// assume mkdir() has 2 args on non Windows-OS/2 platforms and on Windows too
// for the GNU compiler
#if (!(defined(__WXMSW__) || defined(__WXPM__) || defined(__DOS__))) || (defined(__GNUWIN32__) && !defined(__MINGW32__)) || defined(__WXWINE__) || defined(__WXMICROWIN__)
if ( mkdir(wxFNCONV(dirname), perm) != 0 )
#elif defined(__WXPM__)
if (::DosCreateDir((PSZ)dirname, NULL) != 0) // enhance for EAB's??
#elif defined(__DOS__)
#if defined(__WATCOMC__)
(void)perm;
if ( wxMkDir(wxFNSTRINGCAST wxFNCONV(dirname)) != 0 )
#elif defined(__DJGPP__)
if ( mkdir(wxFNCONV(dirname), perm) != 0 )
#else
#error "Unsupported DOS compiler!"
#endif
#else // !MSW, !DOS and !OS/2 VAC++
(void)perm;
if ( wxMkDir(wxFNSTRINGCAST wxFNCONV(dirname)) != 0 )
#endif // !MSW/MSW
{
wxLogSysError(_("Directory '%s' couldn't be created"), dirname);
return FALSE;
}
return TRUE;
#endif // Mac/!Mac
}
bool wxRmdir(const wxString& dir, int WXUNUSED(flags))
{
#ifdef __VMS__
return FALSE; //to be changed since rmdir exists in VMS7.x
#elif defined(__WXPM__)
return (::DosDeleteDir((PSZ)dir.c_str()) == 0);
#else
#ifdef __SALFORDC__
return FALSE; // What to do?
#else
return (wxRmDir(OS_FILENAME(dir)) == 0);
#endif
#endif
}
// does the path exists? (may have or not '/' or '\\' at the end)
bool wxPathExists(const wxChar *pszPathName)
{
wxString strPath(pszPathName);
#ifdef __WINDOWS__
// Windows fails to find directory named "c:\dir\" even if "c:\dir" exists,
// so remove all trailing backslashes from the path - but don't do this for
// the pathes "d:\" (which are different from "d:") nor for just "\"
while ( wxEndsWithPathSeparator(strPath) )
{
size_t len = strPath.length();
if ( len == 1 || (len == 3 && strPath[len - 2] == _T(':')) )
break;
strPath.Truncate(len - 1);
}
#endif // __WINDOWS__
#if defined(__WIN32__) && !defined(__WXMICROWIN__)
// stat() can't cope with network paths
DWORD ret = ::GetFileAttributes(strPath);
return (ret != (DWORD)-1) && (ret & FILE_ATTRIBUTE_DIRECTORY);
#else // !__WIN32__
wxStructStat st;
#ifndef __VISAGECPP__
return wxStat(pszPathName, &st) == 0 && ((st.st_mode & S_IFMT) == S_IFDIR);
#else
// S_IFMT not supported in VA compilers.. st_mode is a 2byte value only
return wxStat(pszPathName, &st) == 0 && (st.st_mode == S_IFDIR);
#endif
#endif // __WIN32__/!__WIN32__
}
// Get a temporary filename, opening and closing the file.
wxChar *wxGetTempFileName(const wxString& prefix, wxChar *buf)
{
wxString filename = wxFileName::CreateTempFileName(prefix);
if ( filename.empty() )
return NULL;
if ( buf )
wxStrcpy(buf, filename);
else
buf = copystring(filename);
return buf;
}
bool wxGetTempFileName(const wxString& prefix, wxString& buf)
{
buf = wxFileName::CreateTempFileName(prefix);
return !buf.empty();
}
// Get first file name matching given wild card.
static wxDir *gs_dir = NULL;
static wxString gs_dirPath;
wxString wxFindFirstFile(const wxChar *spec, int flags)
{
wxSplitPath(spec, &gs_dirPath, NULL, NULL);
if ( gs_dirPath.IsEmpty() )
gs_dirPath = wxT(".");
if ( gs_dirPath.Last() != wxFILE_SEP_PATH )
gs_dirPath << wxFILE_SEP_PATH;
if (gs_dir)
delete gs_dir;
gs_dir = new wxDir(gs_dirPath);
if ( !gs_dir->IsOpened() )
{
wxLogSysError(_("Can not enumerate files '%s'"), spec);
return wxEmptyString;
}
int dirFlags = 0;
switch (flags)
{
case wxDIR: dirFlags = wxDIR_DIRS; break;
case wxFILE: dirFlags = wxDIR_FILES; break;
default: dirFlags = wxDIR_DIRS | wxDIR_FILES; break;
}
wxString result;
gs_dir->GetFirst(&result, wxFileNameFromPath(wxString(spec)), dirFlags);
if ( result.IsEmpty() )
{
wxDELETE(gs_dir);
return result;
}
return gs_dirPath + result;
}
wxString wxFindNextFile()
{
wxASSERT_MSG( gs_dir, wxT("You must call wxFindFirstFile before!") );
wxString result;
gs_dir->GetNext(&result);
if ( result.IsEmpty() )
{
wxDELETE(gs_dir);
return result;
}
return gs_dirPath + result;
}
// Get current working directory.
// If buf is NULL, allocates space using new, else
// copies into buf.
wxChar *wxGetWorkingDirectory(wxChar *buf, int sz)
{
if ( !buf )
{
buf = new wxChar[sz + 1];
}
bool ok = FALSE;
// for the compilers which have Unicode version of _getcwd(), call it
// directly, for the others call the ANSI version and do the translation
#if !wxUSE_UNICODE
#define cbuf buf
#else // wxUSE_UNICODE
bool needsANSI = TRUE;
#if !defined(HAVE_WGETCWD) || wxUSE_UNICODE_MSLU
// This is not legal code as the compiler
// is allowed destroy the wxCharBuffer.
// wxCharBuffer c_buffer(sz);
// char *cbuf = (char*)(const char*)c_buffer;
char cbuf[_MAXPATHLEN];
#endif
#ifdef HAVE_WGETCWD
#if wxUSE_UNICODE_MSLU
if ( wxGetOsVersion() != wxWIN95 )
#else
char *cbuf = NULL; // never really used because needsANSI will always be FALSE
#endif
{
ok = _wgetcwd(buf, sz) != NULL;
needsANSI = FALSE;
}
#endif
if ( needsANSI )
#endif // wxUSE_UNICODE
{
#ifdef _MSC_VER
ok = _getcwd(cbuf, sz) != NULL;
#elif defined(__WXMAC__) && !defined(__DARWIN__)
FSSpec cwdSpec ;
FCBPBRec pb;
OSErr error;
Str255 fileName ;
pb.ioNamePtr = (StringPtr) &fileName;
pb.ioVRefNum = 0;
pb.ioRefNum = LMGetCurApRefNum();
pb.ioFCBIndx = 0;
error = PBGetFCBInfoSync(&pb);
if ( error == noErr )
{
cwdSpec.vRefNum = pb.ioFCBVRefNum;
cwdSpec.parID = pb.ioFCBParID;
cwdSpec.name[0] = 0 ;
wxString res = wxMacFSSpec2MacFilename( &cwdSpec ) ;
strcpy( cbuf , res ) ;
cbuf[res.length()]=0 ;
ok = TRUE;
}
else
{
ok = FALSE;
}
#elif defined(__VISAGECPP__) || (defined (__OS2__) && defined (__WATCOMC__))
APIRET rc;
rc = ::DosQueryCurrentDir( 0 // current drive
,cbuf
,(PULONG)&sz
);
ok = rc != 0;
#else // !Win32/VC++ !Mac !OS2
ok = getcwd(cbuf, sz) != NULL;
#endif // platform
#if wxUSE_UNICODE
// finally convert the result to Unicode if needed
wxConvFile.MB2WC(buf, cbuf, sz);
#endif // wxUSE_UNICODE
}
if ( !ok )
{
wxLogSysError(_("Failed to get the working directory"));
// VZ: the old code used to return "." on error which didn't make any
// sense at all to me - empty string is a better error indicator
// (NULL might be even better but I'm afraid this could lead to
// problems with the old code assuming the return is never NULL)
buf[0] = _T('\0');
}
else // ok, but we might need to massage the path into the right format
{
#ifdef __DJGPP__
// VS: DJGPP is a strange mix of DOS and UNIX API and returns paths
// with / deliminers. We don't like that.
for (wxChar *ch = buf; *ch; ch++)
{
if (*ch == wxT('/'))
*ch = wxT('\\');
}
#endif // __DJGPP__
// MBN: we hope that in the case the user is compiling a GTK+/Motif app,
// he needs Unix as opposed to Win32 pathnames
#if defined( __CYGWIN__ ) && defined( __WINDOWS__ )
// another example of DOS/Unix mix (Cygwin)
wxString pathUnix = buf;
cygwin_conv_to_full_win32_path(pathUnix, buf);
#endif // __CYGWIN__
}
return buf;
#if !wxUSE_UNICODE
#undef cbuf
#endif
}
wxString wxGetCwd()
{
wxChar *buffer = new wxChar[_MAXPATHLEN];
wxGetWorkingDirectory(buffer, _MAXPATHLEN);
wxString str( buffer );
delete [] buffer;
return str;
}
bool wxSetWorkingDirectory(const wxString& d)
{
#if defined(__UNIX__) || defined(__WXMAC__) || defined(__DOS__)
return (chdir(wxFNSTRINGCAST d.fn_str()) == 0);
#elif defined(__WXPM__)
return (::DosSetCurrentDir((PSZ)d.c_str()) == 0);
#elif defined(__WINDOWS__)
#ifdef __WIN32__
return (bool)(SetCurrentDirectory(d) != 0);
#else
// Must change drive, too.
bool isDriveSpec = ((strlen(d) > 1) && (d[1] == ':'));
if (isDriveSpec)
{
wxChar firstChar = d[0];
// To upper case
if (firstChar > 90)
firstChar = firstChar - 32;
// To a drive number
unsigned int driveNo = firstChar - 64;
if (driveNo > 0)
{
unsigned int noDrives;
_dos_setdrive(driveNo, &noDrives);
}
}
bool success = (chdir(WXSTRINGCAST d) == 0);
return success;
#endif
#endif
}
// Get the OS directory if appropriate (such as the Windows directory).
// On non-Windows platform, probably just return the empty string.
wxString wxGetOSDirectory()
{
#if defined(__WINDOWS__) && !defined(__WXMICROWIN__)
wxChar buf[256];
GetWindowsDirectory(buf, 256);
return wxString(buf);
#else
return wxEmptyString;
#endif
}
bool wxEndsWithPathSeparator(const wxChar *pszFileName)
{
size_t len = wxStrlen(pszFileName);
return len && wxIsPathSeparator(pszFileName[len - 1]);
}
// find a file in a list of directories, returns false if not found
bool wxFindFileInPath(wxString *pStr, const wxChar *pszPath, const wxChar *pszFile)
{
// we assume that it's not empty
wxCHECK_MSG( !wxIsEmpty(pszFile), FALSE,
_T("empty file name in wxFindFileInPath"));
// skip path separator in the beginning of the file name if present
if ( wxIsPathSeparator(*pszFile) )
pszFile++;
// copy the path (strtok will modify it)
wxChar *szPath = new wxChar[wxStrlen(pszPath) + 1];
wxStrcpy(szPath, pszPath);
wxString strFile;
wxChar *pc, *save_ptr;
for ( pc = wxStrtok(szPath, wxPATH_SEP, &save_ptr);
pc != NULL;
pc = wxStrtok((wxChar *) NULL, wxPATH_SEP, &save_ptr) )
{
// search for the file in this directory
strFile = pc;
if ( !wxEndsWithPathSeparator(pc) )
strFile += wxFILE_SEP_PATH;
strFile += pszFile;
if ( wxFileExists(strFile) ) {
*pStr = strFile;
break;
}
}
// suppress warning about unused variable save_ptr when wxStrtok() is a
// macro which throws away its third argument
save_ptr = pc;
delete [] szPath;
return pc != NULL; // if true => we breaked from the loop
}
void WXDLLEXPORT wxSplitPath(const wxChar *pszFileName,
wxString *pstrPath,
wxString *pstrName,
wxString *pstrExt)
{
// it can be empty, but it shouldn't be NULL
wxCHECK_RET( pszFileName, wxT("NULL file name in wxSplitPath") );
wxFileName::SplitPath(pszFileName, pstrPath, pstrName, pstrExt);
}
time_t WXDLLEXPORT wxFileModificationTime(const wxString& filename)
{
wxStructStat buf;
wxStat( filename, &buf);
return buf.st_mtime;
}
//------------------------------------------------------------------------
// wild character routines
//------------------------------------------------------------------------
bool wxIsWild( const wxString& pattern )
{
wxString tmp = pattern;
wxChar *pat = WXSTRINGCAST(tmp);
while (*pat)
{
switch (*pat++)
{
case wxT('?'): case wxT('*'): case wxT('['): case wxT('{'):
return TRUE;
case wxT('\\'):
if (!*pat++)
return FALSE;
}
}
return FALSE;
}
/*
* Written By Douglas A. Lewis <dalewis@cs.Buffalo.EDU>
*
* The match procedure is public domain code (from ircII's reg.c)
*/
bool wxMatchWild( const wxString& pat, const wxString& text, bool dot_special )
{
if (text.empty())
{
/* Match if both are empty. */
return pat.empty();
}
const wxChar *m = pat.c_str(),
*n = text.c_str(),
*ma = NULL,
*na = NULL,
*mp = NULL,
*np = NULL;
int just = 0,
pcount = 0,
acount = 0,
count = 0;
if (dot_special && (*n == wxT('.')))
{
/* Never match so that hidden Unix files
* are never found. */
return FALSE;
}
for (;;)
{
if (*m == wxT('*'))
{
ma = ++m;
na = n;
just = 1;
mp = NULL;
acount = count;
}
else if (*m == wxT('?'))
{
m++;
if (!*n++)
return FALSE;
}
else
{
if (*m == wxT('\\'))
{
m++;
/* Quoting "nothing" is a bad thing */
if (!*m)
return FALSE;
}
if (!*m)
{
/*
* If we are out of both strings or we just
* saw a wildcard, then we can say we have a
* match
*/
if (!*n)
return TRUE;
if (just)
return TRUE;
just = 0;
goto not_matched;
}
/*
* We could check for *n == NULL at this point, but
* since it's more common to have a character there,
* check to see if they match first (m and n) and
* then if they don't match, THEN we can check for
* the NULL of n
*/
just = 0;
if (*m == *n)
{
m++;
if (*n == wxT(' '))
mp = NULL;
count++;
n++;
}
else
{
not_matched:
/*
* If there are no more characters in the
* string, but we still need to find another
* character (*m != NULL), then it will be
* impossible to match it
*/
if (!*n)
return FALSE;
if (mp)
{
m = mp;
if (*np == wxT(' '))
{
mp = NULL;
goto check_percent;
}
n = ++np;
count = pcount;
}
else
check_percent:
if (ma)
{
m = ma;
n = ++na;
count = acount;
}
else
return FALSE;
}
}
}
}
#ifdef __VISUALC__
#pragma warning(default:4706) // assignment within conditional expression
#endif // VC++