487 lines
12 KiB
C
487 lines
12 KiB
C
/*
|
||
* tkFileFilter.c --
|
||
*
|
||
* Process the -filetypes option for the file dialogs on Windows and the
|
||
* Mac.
|
||
*
|
||
* Copyright (c) 1996 Sun Microsystems, Inc.
|
||
*
|
||
* See the file "license.terms" for information on usage and redistribution
|
||
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
|
||
*
|
||
* SCCS: @(#) tkFileFilter.c 1.6 97/04/30 15:55:35
|
||
*
|
||
*/
|
||
|
||
#include "tkInt.h"
|
||
#include "tkFileFilter.h"
|
||
|
||
static int AddClause _ANSI_ARGS_((
|
||
Tcl_Interp * interp, FileFilter * filterPtr,
|
||
char * patternsStr, char * ostypesStr,
|
||
int isWindows));
|
||
static void FreeClauses _ANSI_ARGS_((FileFilter * filterPtr));
|
||
static void FreeGlobPatterns _ANSI_ARGS_((
|
||
FileFilterClause * clausePtr));
|
||
static void FreeMacFileTypes _ANSI_ARGS_((
|
||
FileFilterClause * clausePtr));
|
||
static FileFilter * GetFilter _ANSI_ARGS_((FileFilterList * flistPtr,
|
||
char * name));
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* TkInitFileFilters --
|
||
*
|
||
* Initializes a FileFilterList data structure. A FileFilterList
|
||
* must be initialized EXACTLY ONCE before any calls to
|
||
* TkGetFileFilters() is made. The usual flow of control is:
|
||
* TkInitFileFilters(&flist);
|
||
* TkGetFileFilters(&flist, ...);
|
||
* TkGetFileFilters(&flist, ...);
|
||
* ...
|
||
* TkFreeFileFilters(&flist);
|
||
*
|
||
* Results:
|
||
* None.
|
||
*
|
||
* Side effects:
|
||
* The fields in flistPtr are initialized.
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
void
|
||
TkInitFileFilters(flistPtr)
|
||
FileFilterList * flistPtr; /* The structure to be initialized. */
|
||
{
|
||
flistPtr->filters = NULL;
|
||
flistPtr->filtersTail = NULL;
|
||
flistPtr->numFilters = 0;
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* TkGetFileFilters --
|
||
*
|
||
* This function is called by the Mac and Windows implementation
|
||
* of tk_getOpenFile and tk_getSaveFile to translate the string
|
||
* value of the -filetypes option of into an easy-to-parse C
|
||
* structure (flistPtr). The caller of this function will then use
|
||
* flistPtr to perform filetype matching in a platform specific way.
|
||
*
|
||
* flistPtr must be initialized (See comments in TkInitFileFilters).
|
||
*
|
||
* Results:
|
||
* A standard TCL return value.
|
||
*
|
||
* Side effects:
|
||
* The fields in flistPtr are changed according to string.
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
int
|
||
TkGetFileFilters(interp, flistPtr, string, isWindows)
|
||
Tcl_Interp *interp; /* Interpreter to use for error reporting. */
|
||
FileFilterList * flistPtr; /* Stores the list of file filters. */
|
||
char * string; /* Value of the -filetypes option. */
|
||
int isWindows; /* True if we are running on Windows. */
|
||
{
|
||
int listArgc;
|
||
char ** listArgv = NULL;
|
||
char ** typeInfo = NULL;
|
||
int code = TCL_OK;
|
||
int i;
|
||
|
||
if (Tcl_SplitList(interp, string, &listArgc, &listArgv) != TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
if (listArgc == 0) {
|
||
goto done;
|
||
}
|
||
|
||
/*
|
||
* Free the filter information that have been allocated the previous
|
||
* time -- the -filefilters option may have been used more than once in
|
||
* the command line.
|
||
*/
|
||
TkFreeFileFilters(flistPtr);
|
||
|
||
for (i = 0; i<listArgc; i++) {
|
||
/*
|
||
* Each file type should have two or three elements: the first one
|
||
* is the name of the type and the second is the filter of the type.
|
||
* The third is the Mac OSType ID, but we don't care about them here.
|
||
*/
|
||
int count;
|
||
FileFilter * filterPtr;
|
||
|
||
if (Tcl_SplitList(interp, listArgv[i], &count, &typeInfo) != TCL_OK) {
|
||
code = TCL_ERROR;
|
||
goto done;
|
||
}
|
||
|
||
if (count != 2 && count != 3) {
|
||
Tcl_AppendResult(interp, "bad file type \"", listArgv[i], "\", ",
|
||
"should be \"typeName {extension ?extensions ...?} ",
|
||
"?{macType ?macTypes ...?}?\"", NULL);
|
||
code = TCL_ERROR;
|
||
goto done;
|
||
}
|
||
|
||
filterPtr = GetFilter(flistPtr, typeInfo[0]);
|
||
|
||
if (count == 2) {
|
||
code = AddClause(interp, filterPtr, typeInfo[1], NULL,
|
||
isWindows);
|
||
} else {
|
||
code = AddClause(interp, filterPtr, typeInfo[1], typeInfo[2],
|
||
isWindows);
|
||
}
|
||
if (code != TCL_OK) {
|
||
goto done;
|
||
}
|
||
|
||
if (typeInfo) {
|
||
ckfree((char*)typeInfo);
|
||
}
|
||
typeInfo = NULL;
|
||
}
|
||
|
||
done:
|
||
if (typeInfo) {
|
||
ckfree((char*)typeInfo);
|
||
}
|
||
if (listArgv) {
|
||
ckfree((char*)listArgv);
|
||
}
|
||
return code;
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* TkFreeFileFilters --
|
||
*
|
||
* Frees the malloc'ed file filter information.
|
||
*
|
||
* Results:
|
||
* None.
|
||
*
|
||
* Side effects:
|
||
* The fields allocated by TkGetFileFilters() are freed.
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
void
|
||
TkFreeFileFilters(flistPtr)
|
||
FileFilterList * flistPtr; /* List of file filters to free */
|
||
{
|
||
FileFilter * filterPtr, *toFree;
|
||
|
||
filterPtr=flistPtr->filters;
|
||
while (filterPtr) {
|
||
toFree = filterPtr;
|
||
filterPtr=filterPtr->next;
|
||
FreeClauses(toFree);
|
||
ckfree((char*)toFree->name);
|
||
ckfree((char*)toFree);
|
||
}
|
||
flistPtr->filters = NULL;
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* AddClause --
|
||
*
|
||
* Add one FileFilterClause to filterPtr.
|
||
*
|
||
* Results:
|
||
* A standard TCL result.
|
||
*
|
||
* Side effects:
|
||
* The list of filter clauses are updated in filterPtr.
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
static int AddClause(interp, filterPtr, patternsStr, ostypesStr, isWindows)
|
||
Tcl_Interp * interp; /* Interpreter to use for error reporting. */
|
||
FileFilter * filterPtr; /* Stores the new filter clause */
|
||
char * patternsStr; /* A TCL list of glob patterns. */
|
||
char * ostypesStr; /* A TCL list of Mac OSType strings. */
|
||
int isWindows; /* True if we are running on Windows; False
|
||
* if we are running on the Mac; Glob
|
||
* patterns need to be processed differently
|
||
* on these two platforms */
|
||
{
|
||
char ** globList = NULL;
|
||
int globCount;
|
||
char ** ostypeList = NULL;
|
||
int ostypeCount;
|
||
FileFilterClause * clausePtr;
|
||
int i;
|
||
int code = TCL_OK;
|
||
|
||
if (Tcl_SplitList(interp, patternsStr, &globCount, &globList)!= TCL_OK) {
|
||
code = TCL_ERROR;
|
||
goto done;
|
||
}
|
||
if (ostypesStr != NULL) {
|
||
if (Tcl_SplitList(interp, ostypesStr, &ostypeCount, &ostypeList)
|
||
!= TCL_OK) {
|
||
code = TCL_ERROR;
|
||
goto done;
|
||
}
|
||
for (i=0; i<ostypeCount; i++) {
|
||
if (strlen(ostypeList[i]) != 4) {
|
||
Tcl_AppendResult(interp, "bad Macintosh file type \"",
|
||
ostypeList[i], "\"", NULL);
|
||
code = TCL_ERROR;
|
||
goto done;
|
||
}
|
||
}
|
||
}
|
||
|
||
/*
|
||
* Add the clause into the list of clauses
|
||
*/
|
||
|
||
clausePtr = (FileFilterClause*)ckalloc(sizeof(FileFilterClause));
|
||
clausePtr->patterns = NULL;
|
||
clausePtr->patternsTail = NULL;
|
||
clausePtr->macTypes = NULL;
|
||
clausePtr->macTypesTail = NULL;
|
||
|
||
if (filterPtr->clauses == NULL) {
|
||
filterPtr->clauses = filterPtr->clausesTail = clausePtr;
|
||
} else {
|
||
filterPtr->clausesTail->next = clausePtr;
|
||
filterPtr->clausesTail = clausePtr;
|
||
}
|
||
clausePtr->next = NULL;
|
||
|
||
if (globCount > 0 && globList != NULL) {
|
||
for (i=0; i<globCount; i++) {
|
||
GlobPattern * globPtr = (GlobPattern*)ckalloc(sizeof(GlobPattern));
|
||
int len;
|
||
|
||
len = (strlen(globList[i]) + 1) * sizeof(char);
|
||
|
||
if (globList[i][0] && globList[i][0] != '*') {
|
||
/*
|
||
* Prepend a "*" to patterns that do not have a leading "*"
|
||
*/
|
||
globPtr->pattern = (char*)ckalloc(len+1);
|
||
globPtr->pattern[0] = '*';
|
||
strcpy(globPtr->pattern+1, globList[i]);
|
||
}
|
||
else if (isWindows) {
|
||
if (strcmp(globList[i], "*") == 0) {
|
||
globPtr->pattern = (char*)ckalloc(4*sizeof(char));
|
||
strcpy(globPtr->pattern, "*.*");
|
||
}
|
||
else if (strcmp(globList[i], "") == 0) {
|
||
/*
|
||
* An empty string means "match all files with no
|
||
* extensions"
|
||
* BUG: "*." actually matches with all files on Win95
|
||
*/
|
||
globPtr->pattern = (char*)ckalloc(3*sizeof(char));
|
||
strcpy(globPtr->pattern, "*.");
|
||
}
|
||
else {
|
||
globPtr->pattern = (char*)ckalloc(len);
|
||
strcpy(globPtr->pattern, globList[i]);
|
||
}
|
||
} else {
|
||
globPtr->pattern = (char*)ckalloc(len);
|
||
strcpy(globPtr->pattern, globList[i]);
|
||
}
|
||
|
||
/*
|
||
* Add the glob pattern into the list of patterns.
|
||
*/
|
||
|
||
if (clausePtr->patterns == NULL) {
|
||
clausePtr->patterns = clausePtr->patternsTail = globPtr;
|
||
} else {
|
||
clausePtr->patternsTail->next = globPtr;
|
||
clausePtr->patternsTail = globPtr;
|
||
}
|
||
globPtr->next = NULL;
|
||
}
|
||
}
|
||
if (ostypeCount > 0 && ostypeList != NULL) {
|
||
for (i=0; i<ostypeCount; i++) {
|
||
MacFileType * mfPtr = (MacFileType*)ckalloc(sizeof(MacFileType));
|
||
|
||
memcpy(&mfPtr->type, ostypeList[i], sizeof(OSType));
|
||
|
||
/*
|
||
* Add the Mac type pattern into the list of Mac types
|
||
*/
|
||
if (clausePtr->macTypes == NULL) {
|
||
clausePtr->macTypes = clausePtr->macTypesTail = mfPtr;
|
||
} else {
|
||
clausePtr->macTypesTail->next = mfPtr;
|
||
clausePtr->macTypesTail = mfPtr;
|
||
}
|
||
mfPtr->next = NULL;
|
||
}
|
||
}
|
||
|
||
done:
|
||
if (globList) {
|
||
ckfree((char*)globList);
|
||
}
|
||
if (ostypeList) {
|
||
ckfree((char*)ostypeList);
|
||
}
|
||
|
||
return code;
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* GetFilter --
|
||
*
|
||
* Add one FileFilter to flistPtr.
|
||
*
|
||
* Results:
|
||
* A standard TCL result.
|
||
*
|
||
* Side effects:
|
||
* The list of filters are updated in flistPtr.
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
static FileFilter * GetFilter(flistPtr, name)
|
||
FileFilterList * flistPtr; /* The FileFilterList that contains the
|
||
* newly created filter */
|
||
char * name; /* Name of the filter. It is usually displayed
|
||
* in the "File Types" listbox in the file
|
||
* dialogs. */
|
||
{
|
||
FileFilter * filterPtr;
|
||
|
||
for (filterPtr=flistPtr->filters; filterPtr; filterPtr=filterPtr->next) {
|
||
if (strcmp(filterPtr->name, name)==0) {
|
||
return filterPtr;
|
||
}
|
||
}
|
||
|
||
filterPtr = (FileFilter*)ckalloc(sizeof(FileFilter));
|
||
filterPtr->clauses = NULL;
|
||
filterPtr->clausesTail = NULL;
|
||
filterPtr->name = (char*)ckalloc((strlen(name)+1) * sizeof(char));
|
||
strcpy(filterPtr->name, name);
|
||
|
||
if (flistPtr->filters == NULL) {
|
||
flistPtr->filters = flistPtr->filtersTail = filterPtr;
|
||
} else {
|
||
flistPtr->filtersTail->next = filterPtr;
|
||
flistPtr->filtersTail = filterPtr;
|
||
}
|
||
filterPtr->next = NULL;
|
||
|
||
++flistPtr->numFilters;
|
||
return filterPtr;
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* FreeClauses --
|
||
*
|
||
* Frees the malloc'ed file type clause
|
||
*
|
||
* Results:
|
||
* None.
|
||
*
|
||
* Side effects:
|
||
* The list of clauses in filterPtr->clauses are freed.
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
static void
|
||
FreeClauses(filterPtr)
|
||
FileFilter * filterPtr; /* FileFilter whose clauses are to be freed */
|
||
{
|
||
FileFilterClause * clausePtr, * toFree;
|
||
|
||
clausePtr = filterPtr->clauses;
|
||
while (clausePtr) {
|
||
toFree = clausePtr;
|
||
clausePtr=clausePtr->next;
|
||
FreeGlobPatterns(toFree);
|
||
FreeMacFileTypes(toFree);
|
||
ckfree((char*)toFree);
|
||
}
|
||
filterPtr->clauses = NULL;
|
||
filterPtr->clausesTail = NULL;
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* FreeGlobPatterns --
|
||
*
|
||
* Frees the malloc'ed glob patterns in a clause
|
||
*
|
||
* Results:
|
||
* None.
|
||
*
|
||
* Side effects:
|
||
* The list of glob patterns in clausePtr->patterns are freed.
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
static void
|
||
FreeGlobPatterns(clausePtr)
|
||
FileFilterClause * clausePtr;/* The clause whose patterns are to be freed*/
|
||
{
|
||
GlobPattern * globPtr, * toFree;
|
||
|
||
globPtr = clausePtr->patterns;
|
||
while (globPtr) {
|
||
toFree = globPtr;
|
||
globPtr=globPtr->next;
|
||
|
||
ckfree((char*)toFree->pattern);
|
||
ckfree((char*)toFree);
|
||
}
|
||
clausePtr->patterns = NULL;
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* FreeMacFileTypes --
|
||
*
|
||
* Frees the malloc'ed Mac file types in a clause
|
||
*
|
||
* Results:
|
||
* None.
|
||
*
|
||
* Side effects:
|
||
* The list of Mac file types in clausePtr->macTypes are freed.
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
static void
|
||
FreeMacFileTypes(clausePtr)
|
||
FileFilterClause * clausePtr; /* The clause whose mac types are to be
|
||
* freed */
|
||
{
|
||
MacFileType * mfPtr, * toFree;
|
||
|
||
mfPtr = clausePtr->macTypes;
|
||
while (mfPtr) {
|
||
toFree = mfPtr;
|
||
mfPtr=mfPtr->next;
|
||
ckfree((char*)toFree);
|
||
}
|
||
clausePtr->macTypes = NULL;
|
||
}
|