Files
wxWidgets/src/common/filefn.cpp
2006-03-12 13:39:41 +00:00

1984 lines
52 KiB
C++

/////////////////////////////////////////////////////////////////////////////
// Name: src/common/filefn.cpp
// Purpose: File- and directory-related functions
// Author: Julian Smart
// Modified by:
// Created: 29/01/98
// RCS-ID: $Id$
// Copyright: (c) 1998 Julian Smart
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// ============================================================================
// declarations
// ============================================================================
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
// 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" // This does include filefn.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 !wxONLY_WATCOM_EARLIER_THAN(1,4)
#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 "wx/log.h"
#ifdef __WINDOWS__
#include "wx/msw/private.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
#endif // __GNUWIN32__
// io.h is needed for _get_osfhandle()
// Already included by filefn.h for many Windows compilers
#if defined __MWERKS__ || defined __CYGWIN__
#include <io.h>
#endif
#endif // __WINDOWS__
#if defined(__VMS__)
#include <fab.h>
#endif
// TODO: Borland probably has _wgetcwd as well?
#ifdef _MSC_VER
#define HAVE_WGETCWD
#endif
// ----------------------------------------------------------------------------
// constants
// ----------------------------------------------------------------------------
#ifndef _MAXPATHLEN
#define _MAXPATHLEN 1024
#endif
#ifdef __WXMAC__
# include "MoreFilesX.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 int wxInvalidOffset = -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)
static inline wxChar* MYcopystring(const wxString& s)
{
wxChar* copy = new wxChar[s.length() + 1];
return wxStrcpy(copy, s.c_str());
}
static inline wxChar* MYcopystring(const wxChar* s)
{
wxChar* copy = new wxChar[wxStrlen(s) + 1];
return wxStrcpy(copy, s);
}
void wxPathList::Add (const wxString& path)
{
wxStringList::Add (WXSTRINGCAST path);
}
// Add paths e.g. from the PATH environment variable
void wxPathList::AddEnvList (const wxString& WXUNUSED_IN_WINCE(envVariable))
{
// No environment variables on WinCE
#ifndef __WXWINCE__
static const wxChar PATH_TOKS[] =
#if defined(__WINDOWS__) || defined(__OS2__)
/*
The space has been removed from the tokenizers, otherwise a
path such as "C:\Program Files" would be split into 2 paths:
"C:\Program" and "Files"
*/
// wxT(" ;"); // Don't separate with colon in DOS (used for drive)
wxT(";"); // Don't separate with colon in DOS (used for drive)
#else
wxT(" :;");
#endif
wxString val ;
if (wxGetEnv (WXSTRINGCAST envVariable, &val))
{
wxChar *s = MYcopystring (val);
wxChar *save_ptr, *token = wxStrtok (s, PATH_TOKS, &save_ptr);
if (token)
{
Add(token);
while (token)
{
if ( (token = wxStrtok ((wxChar *) NULL, PATH_TOKS, &save_ptr))
!= NULL )
{
Add(token);
}
}
}
// suppress warning about unused variable save_ptr when wxStrtok() is a
// macro which throws away its third argument
save_ptr = token;
delete [] s;
}
#endif // !__WXWINCE__
}
// 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.empty() )
{
if ( !Member(path_only) )
Add(path_only);
}
}
bool wxPathList::Member (const wxString& path)
{
for (wxStringList::compatibility_iterator node = GetFirst(); node; node = node->GetNext())
{
wxString path2( node->GetData() );
if (
#if defined(__WINDOWS__) || defined(__OS2__) || 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)
{
wxExpandPath(wxFileFunctionsBuffer, file);
wxChar buf[_MAXPATHLEN];
wxStrcpy(buf, wxFileFunctionsBuffer);
wxChar *filename = wxIsAbsolutePath (buf) ? wxFileNameFromPath (buf) : (wxChar *)buf;
for (wxStringList::compatibility_iterator node = GetFirst(); node; node = node->GetNext())
{
const wxString path(node->GetData());
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 wxEmptyString; // Not found
}
wxString wxPathList::FindAbsoluteValidPath (const wxString& file)
{
wxString f = FindValidPath(file);
if ( f.empty() || wxIsAbsolutePath(f) )
return f;
wxString buf = ::wxGetCwd();
if ( !wxEndsWithPathSeparator(buf) )
{
buf += wxFILE_SEP_PATH;
}
buf += f;
return buf;
}
bool
wxFileExists (const wxString& filename)
{
#if defined(__WXPALMOS__)
return false;
#elif defined(__WIN32__) && !defined(__WXMICROWIN__)
// we must use GetFileAttributes() instead of the ANSI C functions because
// it can cope with network (UNC) paths unlike them
DWORD ret = ::GetFileAttributes(filename);
return (ret != (DWORD)-1) && !(ret & FILE_ATTRIBUTE_DIRECTORY);
#else // !__WIN32__
wxStructStat st;
#ifndef wxNEED_WX_UNISTD_H
return (wxStat( filename.fn_str() , &st) == 0 && (st.st_mode & S_IFREG))
#ifdef __OS2__
|| (errno == EACCES) // if access is denied something with that name
// exists and is opened in exclusive mode.
#endif
;
#else
return wxStat( filename , &st) == 0 && (st.st_mode & S_IFREG);
#endif
#endif // __WIN32__/!__WIN32__
}
bool
wxIsAbsolutePath (const wxString& filename)
{
if (!filename.empty())
{
#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
#if defined(__WINDOWS__) || defined(__OS2__)
// 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)
{
//RN: Be careful about the handling the case where
//buffer.length() == 0
for(size_t i = buffer.length() - 1; i != wxString::npos; --i)
{
if (buffer.GetChar(i) == wxT('.'))
{
buffer = buffer.Left(i);
break;
}
}
}
// 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--)
{
// Empty
}
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');
}
#if defined(__WXMSW__) || defined(__OS2__)
/* 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;
}
wxString wxRealPath(const wxString& path)
{
wxChar *buf1=MYcopystring(path);
wxChar *buf2=wxRealPath(buf1);
wxString buf(buf2);
delete [] buf1;
return buf;
}
// Must be destroyed
wxChar *wxCopyAbsolutePath(const wxString& filename)
{
if (filename.empty())
return (wxChar *) NULL;
if (! wxIsAbsolutePath(wxExpandPath(wxFileFunctionsBuffer, filename)))
{
wxString buf = ::wxGetCwd();
wxChar ch = buf.Last();
#ifdef __WXMSW__
if (ch != wxT('\\') && ch != wxT('/'))
buf << wxT("\\");
#else
if (ch != wxT('/'))
buf << wxT("/");
#endif
buf << wxFileFunctionsBuffer;
buf = wxRealPath( buf );
return MYcopystring( buf );
}
return MYcopystring( 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 = MYcopystring(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)!=0) {
s++;
continue;
} else
break;
} else
# endif
#endif
// No env variables on WinCE
#ifndef __WXWINCE__
#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;)
{
// Empty
}
d--;
if (braces && *s)
s++;
}
}
#endif
// __WXWINCE__
}
/* 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(wxEmptyString)) != NULL) {
if (*++nm)
nm++;
}
} else
{ /* ~user/filename */
register wxChar *nnm;
register wxChar *home;
for (s = nm; *s && *s != SEP; s++)
{
// Empty
}
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)
{
// Empty
}
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 --> ${OPENWINHOME}/lib
The call wxExpandPath can convert these back!
*/
wxChar *
wxContractPath (const wxString& filename,
const wxString& WXUNUSED_IN_WINCE(envname),
const wxString& user)
{
static wxChar dest[_MAXPATHLEN];
if (filename.empty())
return (wxChar *) NULL;
wxStrcpy (dest, WXSTRINGCAST filename);
#ifdef __WXMSW__
wxUnix2DosFilename(dest);
#endif
// Handle environment
const wxChar *val;
#ifndef __WXWINCE__
wxChar *tcp;
if (!envname.empty() && (val = wxGetenv (WXSTRINGCAST envname)) != NULL &&
(tcp = wxStrstr (dest, val)) != NULL)
{
wxStrcpy (wxFileFunctionsBuffer, tcp + wxStrlen (val));
*tcp++ = wxT('$');
*tcp++ = wxT('{');
wxStrcpy (tcp, WXSTRINGCAST envname);
wxStrcat (tcp, wxT("}"));
wxStrcat (tcp, wxFileFunctionsBuffer);
}
#endif
// Handle User's home (ignore root homes!)
val = wxGetUserHome (user);
if (!val)
return dest;
const size_t len = wxStrlen(val);
if (len <= 2)
return dest;
if (wxStrncmp(dest, val, len) == 0)
{
wxStrcpy(wxFileFunctionsBuffer, wxT("~"));
if (!user.empty())
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(__OS2__)
// 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.empty())
{
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('\\'))
{
// Don't return an empty string
if (i == 0)
i ++;
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(__OS2__)
// 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 wxEmptyString;
}
// 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__)
#if TARGET_API_MAC_OSX
#define kDefaultPathStyle kCFURLPOSIXPathStyle
#else
#define kDefaultPathStyle kCFURLHFSPathStyle
#endif
wxString wxMacFSRefToPath( const FSRef *fsRef , CFStringRef additionalPathComponent )
{
CFURLRef fullURLRef;
fullURLRef = CFURLCreateFromFSRef(NULL, fsRef);
if ( additionalPathComponent )
{
CFURLRef parentURLRef = fullURLRef ;
fullURLRef = CFURLCreateCopyAppendingPathComponent(NULL, parentURLRef,
additionalPathComponent,false);
CFRelease( parentURLRef ) ;
}
CFStringRef cfString = CFURLCopyFileSystemPath(fullURLRef, kDefaultPathStyle);
CFRelease( fullURLRef ) ;
return wxMacCFStringHolder(cfString).AsString(wxLocale::GetSystemEncoding());
}
OSStatus wxMacPathToFSRef( const wxString&path , FSRef *fsRef )
{
OSStatus err = noErr ;
CFURLRef url = CFURLCreateWithFileSystemPath(kCFAllocatorDefault, wxMacCFStringHolder(path ,wxLocale::GetSystemEncoding() ) , kDefaultPathStyle, false);
if ( NULL != url )
{
if ( CFURLGetFSRef(url, fsRef) == false )
err = fnfErr ;
CFRelease( url ) ;
}
else
{
err = fnfErr ;
}
return err ;
}
wxString wxMacHFSUniStrToString( ConstHFSUniStr255Param uniname )
{
CFStringRef cfname = CFStringCreateWithCharacters( kCFAllocatorDefault,
uniname->unicode,
uniname->length );
return wxMacCFStringHolder(cfname).AsString() ;
}
wxString wxMacFSSpec2MacFilename( const FSSpec *spec )
{
FSRef fsRef ;
if ( FSpMakeFSRef( spec , &fsRef) == noErr )
{
return wxMacFSRefToPath( &fsRef ) ;
}
return wxEmptyString ;
}
void wxMacFilename2FSSpec( const wxString& path , FSSpec *spec )
{
OSStatus err = noErr ;
FSRef fsRef ;
wxMacPathToFSRef( path , &fsRef ) ;
err = FSRefMakeFSSpec( &fsRef , spec ) ;
}
#endif // __WXMAC__
void
wxDos2UnixFilename (wxChar *s)
{
if (s)
while (*s)
{
if (*s == _T('\\'))
*s = _T('/');
#ifdef __WXMSW__
else
*s = (wxChar)wxTolower (*s); // Case INDEPENDENT
#endif
s++;
}
}
void
#if defined(__WXMSW__) || defined(__OS2__)
wxUnix2DosFilename (wxChar *s)
#else
wxUnix2DosFilename (wxChar *WXUNUSED(s) )
#endif
{
// Yes, I really mean this to happen under DOS only! JACS
#if defined(__WXMSW__) || defined(__OS2__)
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)
{
#if wxUSE_FILE
wxFile in1(file1), in2(file2);
wxTempFile out(file3);
if ( !in1.IsOpened() || !in2.IsOpened() || !out.IsOpened() )
return false;
ssize_t ofs;
unsigned char buf[1024];
for( int i=0; i<2; i++)
{
wxFile *in = i==0 ? &in1 : &in2;
do{
if ( (ofs = in->Read(buf,WXSIZEOF(buf))) == wxInvalidOffset ) return false;
if ( ofs > 0 )
if ( !out.Write(buf,ofs) )
return false;
} while ( ofs == (ssize_t)WXSIZEOF(buf) );
}
return out.Commit();
#else
wxUnusedVar(file1);
wxUnusedVar(file2);
wxUnusedVar(file3);
return false;
#endif
}
// 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(__OS2__)
if ( ::DosCopy((PSZ)file1.c_str(), (PSZ)file2.c_str(), overwrite ? DCPY_EXISTING : 0) != 0 )
return false;
#elif defined(__PALMOS__)
// TODO with http://www.palmos.com/dev/support/docs/protein_books/Memory_Databases_Files/
return false;
#elif wxUSE_FILE // !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;
}
// reset the umask as we want to create the file with exactly the same
// permissions as the original one
wxCHANGE_UMASK(0);
// 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;
// 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
#else // !Win32 && ! wxUSE_FILE
// impossible to simulate with wxWidgets API
wxUnusedVar(file1);
wxUnusedVar(file2);
wxUnusedVar(overwrite);
return false;
#endif // __WXMSW__ && __WIN32__
return true;
}
bool
wxRenameFile (const wxString& file1, const wxString& file2)
{
#if !defined(__WXWINCE__) && !defined(__WXPALMOS__)
// Normal system call
if ( wxRename (file1, file2) == 0 )
return true;
#endif
// 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(__DMC__) \
|| defined(__GNUWIN32__) \
|| (defined(__MWERKS__) && defined(__MSL__))
int res = wxRemove(file);
#elif defined(__WXMAC__)
int res = unlink(wxFNCONV(file));
#elif defined(__WXPALMOS__)
int res = 1;
// TODO with VFSFileDelete()
#else
int res = unlink(OS_FILENAME(file));
#endif
return res == 0;
}
bool wxMkdir(const wxString& dir, int perm)
{
#if defined(__WXPALMOS__)
return false;
#elif defined(__WXMAC__) && !defined(__UNIX__)
return (mkdir( wxFNCONV(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(__OS2__) || defined(__DOS__))) || (defined(__GNUWIN32__) && !defined(__MINGW32__)) || defined(__WINE__) || defined(__WXMICROWIN__)
#if defined(MSVCRT)
wxUnusedVar(perm);
if ( mkdir(wxFNCONV(dirname)) != 0 )
#else
if ( mkdir(wxFNCONV(dirname), perm) != 0 )
#endif
#elif defined(__OS2__)
wxUnusedVar(perm);
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++
wxUnusedVar(perm);
#ifdef __WXWINCE__
if ( !CreateDirectory(dirname, NULL) )
#else
if ( wxMkDir(dir.fn_str()) != 0 )
#endif
#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))
{
#if defined(__VMS__)
return false; //to be changed since rmdir exists in VMS7.x
#elif defined(__OS2__)
return (::DosDeleteDir((PSZ)dir.c_str()) == 0);
#elif defined(__WXWINCE__)
return (CreateDirectory(dir, NULL) != 0);
#elif defined(__WXPALMOS__)
// TODO with VFSFileRename()
return false;
#else
return (wxRmDir(OS_FILENAME(dir)) == 0);
#endif
}
// does the path exists? (may have or not '/' or '\\' at the end)
bool wxDirExists(const wxChar *pszPathName)
{
wxString strPath(pszPathName);
#if defined(__WINDOWS__) || defined(__OS2__)
// 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__
#ifdef __OS2__
// OS/2 can't handle "d:", it wants either "d:\" or "d:."
if (strPath.length() == 2 && strPath[1u] == _T(':'))
strPath << _T('.');
#endif
#if defined(__WXPALMOS__)
return false;
#elif defined(__WIN32__) && !defined(__WXMICROWIN__)
// stat() can't cope with network paths
DWORD ret = ::GetFileAttributes(strPath);
return (ret != (DWORD)-1) && (ret & FILE_ATTRIBUTE_DIRECTORY);
#elif defined(__OS2__)
FILESTATUS3 Info = {{0}};
APIRET rc = ::DosQueryPathInfo((PSZ)(WXSTRINGCAST strPath), FIL_STANDARD,
(void*) &Info, sizeof(FILESTATUS3));
return ((rc == NO_ERROR) && (Info.attrFile & FILE_DIRECTORY)) ||
(rc == ERROR_SHARING_VIOLATION);
// If we got a sharing violation, there must be something with this name.
#else // !__WIN32__
wxStructStat st;
#ifndef __VISAGECPP__
return wxStat(strPath.c_str(), &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)
{
#if wxUSE_FILE
wxString filename = wxFileName::CreateTempFileName(prefix);
if ( filename.empty() )
return NULL;
if ( buf )
wxStrcpy(buf, filename);
else
buf = MYcopystring(filename);
return buf;
#else
wxUnusedVar(prefix);
wxUnusedVar(buf);
// wxFileName::CreateTempFileName needs wxFile class enabled
return NULL;
#endif
}
bool wxGetTempFileName(const wxString& prefix, wxString& buf)
{
buf = wxGetTempFileName(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.empty() )
gs_dirPath = wxT(".");
if ( !wxEndsWithPathSeparator(gs_dirPath ) )
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;
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.empty() )
{
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.empty() )
{
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.
// wxGetWorkingDirectory() is obsolete, use wxGetCwd()
// wxDoGetCwd() is their common core to be moved
// to wxGetCwd() once wxGetWorkingDirectory() will be removed.
// Do not expose wxDoGetCwd in headers!
wxChar *wxDoGetCwd(wxChar *buf, int sz)
{
#if defined(__WXPALMOS__)
// TODO
if(buf && sz>0) buf[0] = _T('\0');
return buf;
#elif defined(__WXWINCE__)
// TODO
if(buf && sz>0) buf[0] = _T('\0');
return buf;
#else
if ( !buf )
{
buf = new wxChar[sz + 1];
}
bool ok wxDUMMY_INITIALIZE(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
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
{
#if defined(_MSC_VER) || defined(__MINGW32__)
ok = _getcwd(cbuf, sz) != NULL;
#elif defined(__WXMAC__) && !defined(__DARWIN__)
char lbuf[1024] ;
if ( getcwd( lbuf , sizeof( lbuf ) ) )
{
wxString res( lbuf , *wxConvCurrent ) ;
wxStrcpy( buf , res ) ;
ok = true;
}
else
ok = false ;
#elif defined(__OS2__)
APIRET rc;
ULONG ulDriveNum = 0;
ULONG ulDriveMap = 0;
rc = ::DosQueryCurrentDisk(&ulDriveNum, &ulDriveMap);
ok = rc == 0;
if (ok)
{
sz -= 3;
rc = ::DosQueryCurrentDir( 0 // current drive
,cbuf + 3
,(PULONG)&sz
);
cbuf[0] = char('A' + (ulDriveNum - 1));
cbuf[1] = ':';
cbuf[2] = '\\';
ok = rc == 0;
}
#else // !Win32/VC++ !Mac !OS2
ok = getcwd(cbuf, sz) != NULL;
#endif // platform
#if wxUSE_UNICODE && !(defined(__WXMAC__) && !defined(__DARWIN__))
// 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;
#if wxUSE_UNICODE
char bufA[_MAXPATHLEN];
cygwin_conv_to_full_win32_path(pathUnix.mb_str(wxConvFile), bufA);
wxConvFile.MB2WC(buf, bufA, sz);
#else
cygwin_conv_to_full_win32_path(pathUnix, buf);
#endif // wxUSE_UNICODE
#endif // __CYGWIN__
}
return buf;
#if !wxUSE_UNICODE
#undef cbuf
#endif
#endif
// __WXWINCE__
}
#if WXWIN_COMPATIBILITY_2_6
wxChar *wxGetWorkingDirectory(wxChar *buf, int sz)
{
return wxDoGetCwd(buf,sz);
}
#endif // WXWIN_COMPATIBILITY_2_6
wxString wxGetCwd()
{
wxString str;
wxDoGetCwd(wxStringBuffer(str, _MAXPATHLEN), _MAXPATHLEN);
return str;
}
bool wxSetWorkingDirectory(const wxString& d)
{
#if defined(__OS2__)
return (::DosSetCurrentDir((PSZ)d.c_str()) == 0);
#elif defined(__UNIX__) || defined(__WXMAC__) || defined(__DOS__)
return (chdir(wxFNSTRINGCAST d.fn_str()) == 0);
#elif defined(__WINDOWS__)
#ifdef __WIN32__
#ifdef __WXWINCE__
// No equivalent in WinCE
wxUnusedVar(d);
return false;
#else
return (bool)(SetCurrentDirectory(d) != 0);
#endif
#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()
{
#ifdef __WXWINCE__
return wxString(wxT("\\Windows"));
#elif defined(__WINDOWS__) && !defined(__WXMICROWIN__)
wxChar buf[256];
GetWindowsDirectory(buf, 256);
return wxString(buf);
#elif defined(__WXMAC__)
return wxMacFindFolder(kOnSystemDisk, 'macs', false);
#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)
{
#if defined(__WXPALMOS__)
return 0;
#elif defined(__WXWINCE__)
FILETIME ftLastWrite;
AutoHANDLE hFile(::CreateFile(filename, GENERIC_READ, FILE_SHARE_READ,
NULL, 0, FILE_ATTRIBUTE_NORMAL, 0));
if ( !hFile.IsOk() )
return 0;
if ( !::GetFileTime(hFile, NULL, NULL, &ftLastWrite) )
return 0;
// sure we want to translate to local time here?
FILETIME ftLocal;
if ( !::FileTimeToLocalFileTime(&ftLastWrite, &ftLocal) )
{
wxLogLastError(_T("FileTimeToLocalFileTime"));
}
// FILETIME is a counted in 100-ns since 1601-01-01, convert it to
// number of seconds since 1970-01-01
ULARGE_INTEGER uli;
uli.LowPart = ftLocal.dwLowDateTime;
uli.HighPart = ftLocal.dwHighDateTime;
ULONGLONG ull = uli.QuadPart;
ull /= wxULL(10000000); // number of 100ns intervals in 1s
ull -= wxULL(11644473600); // 1970-01-01 - 1601-01-01 in seconds
return wx_static_cast(time_t, ull);
#else
wxStructStat buf;
if ( wxStat( filename, &buf) != 0 )
return 0;
return buf.st_mtime;
#endif
}
// Parses the filterStr, returning the number of filters.
// Returns 0 if none or if there's a problem.
// filterStr is in the form: "All files (*.*)|*.*|JPEG Files (*.jpeg)|*.jpeg"
int WXDLLEXPORT wxParseCommonDialogsFilter(const wxString& filterStr,
wxArrayString& descriptions,
wxArrayString& filters)
{
descriptions.Clear();
filters.Clear();
wxString str(filterStr);
wxString description, filter;
int pos = 0;
while( pos != wxNOT_FOUND )
{
pos = str.Find(wxT('|'));
if ( pos == wxNOT_FOUND )
{
// if there are no '|'s at all in the string just take the entire
// string as filter and make description empty for later autocompletion
if ( filters.IsEmpty() )
{
descriptions.Add(wxEmptyString);
filters.Add(filterStr);
}
else
{
wxFAIL_MSG( _T("missing '|' in the wildcard string!") );
}
break;
}
description = str.Left(pos);
str = str.Mid(pos + 1);
pos = str.Find(wxT('|'));
if ( pos == wxNOT_FOUND )
{
filter = str;
}
else
{
filter = str.Left(pos);
str = str.Mid(pos + 1);
}
descriptions.Add(description);
filters.Add(filter);
}
#if defined(__WXMOTIF__)
// split it so there is one wildcard per entry
for( size_t i = 0 ; i < descriptions.GetCount() ; i++ )
{
pos = filters[i].Find(wxT(';'));
if (pos != wxNOT_FOUND)
{
// first split only filters
descriptions.Insert(descriptions[i],i+1);
filters.Insert(filters[i].Mid(pos+1),i+1);
filters[i]=filters[i].Left(pos);
// autoreplace new filter in description with pattern:
// C/C++ Files(*.cpp;*.c;*.h)|*.cpp;*.c;*.h
// cause split into:
// C/C++ Files(*.cpp)|*.cpp
// C/C++ Files(*.c;*.h)|*.c;*.h
// and next iteration cause another split into:
// C/C++ Files(*.cpp)|*.cpp
// C/C++ Files(*.c)|*.c
// C/C++ Files(*.h)|*.h
for ( size_t k=i;k<i+2;k++ )
{
pos = descriptions[k].Find(filters[k]);
if (pos != wxNOT_FOUND)
{
wxString before = descriptions[k].Left(pos);
wxString after = descriptions[k].Mid(pos+filters[k].Len());
pos = before.Find(_T('('),true);
if (pos>before.Find(_T(')'),true))
{
before = before.Left(pos+1);
before << filters[k];
pos = after.Find(_T(')'));
int pos1 = after.Find(_T('('));
if (pos != wxNOT_FOUND && (pos<pos1 || pos1==wxNOT_FOUND))
{
before << after.Mid(pos);
descriptions[k] = before;
}
}
}
}
}
}
#endif
// autocompletion
for( size_t j = 0 ; j < descriptions.GetCount() ; j++ )
{
if ( descriptions[j].empty() && !filters[j].empty() )
{
descriptions[j].Printf(_("Files (%s)"), filters[j].c_str());
}
}
return filters.GetCount();
}
//------------------------------------------------------------------------
// 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)
* but modified to suit our tastes (RN: No "%" syntax I guess)
*/
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;
int just = 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;
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++;
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 (ma)
{
m = ma;
n = ++na;
count = acount;
}
else
return false;
}
}
}
}
// Return the type of an open file
//
// Some file types on some platforms seem seekable but in fact are not.
// The main use of this function is to allow such cases to be detected
// (IsSeekable() is implemented as wxGetFileKind() == wxFILE_KIND_DISK).
//
// This is important for the archive streams, which benefit greatly from
// being able to seek on a stream, but which will produce corrupt archives
// if they unknowingly seek on a non-seekable stream.
//
// wxFILE_KIND_DISK is a good catch all return value, since other values
// disable features of the archive streams. Some other value must be returned
// for a file type that appears seekable but isn't.
//
// Known examples:
// * Pipes on Windows
// * Files on VMS with a record format other than StreamLF
//
wxFileKind wxGetFileKind(int fd)
{
#if defined __WXMSW__ && !defined __WXWINCE__ && defined wxGetOSFHandle
switch (::GetFileType(wxGetOSFHandle(fd)) & ~FILE_TYPE_REMOTE)
{
case FILE_TYPE_CHAR:
return wxFILE_KIND_TERMINAL;
case FILE_TYPE_DISK:
return wxFILE_KIND_DISK;
case FILE_TYPE_PIPE:
return wxFILE_KIND_PIPE;
}
return wxFILE_KIND_UNKNOWN;
#elif defined(__UNIX__)
if (isatty(fd))
return wxFILE_KIND_TERMINAL;
struct stat st;
fstat(fd, &st);
if (S_ISFIFO(st.st_mode))
return wxFILE_KIND_PIPE;
if (!S_ISREG(st.st_mode))
return wxFILE_KIND_UNKNOWN;
#if defined(__VMS__)
if (st.st_fab_rfm != FAB$C_STMLF)
return wxFILE_KIND_UNKNOWN;
#endif
return wxFILE_KIND_DISK;
#else
#define wxFILEKIND_STUB
(void)fd;
return wxFILE_KIND_DISK;
#endif
}
wxFileKind wxGetFileKind(FILE *fp)
{
// Note: The watcom rtl dll doesn't have fileno (the static lib does).
// Should be fixed in version 1.4.
#if defined(wxFILEKIND_STUB) || wxONLY_WATCOM_EARLIER_THAN(1,4)
(void)fp;
return wxFILE_KIND_DISK;
#else
return fp ? wxGetFileKind(fileno(fp)) : wxFILE_KIND_UNKNOWN;
#endif
}
#ifdef __VISUALC__
#pragma warning(default:4706) // assignment within conditional expression
#endif // VC++