shared/tk_base/tkfilefilter.c

/* $Header: /cvsroot/esrg/sfesrg/esrgpcpj/shared/tk_base/tkfilefilter.c,v 1.1.1.1 2001/06/13 05:00:16 dtashley Exp $ */

/*
 * 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.
 *
 * RCS: @(#) $Id: tkfilefilter.c,v 1.1.1.1 2001/06/13 05:00:16 dtashley Exp $
 */

#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;
}


/* $History: tkFileFilter.c $
 * 
 * *****************  Version 1  *****************
 * User: Dtashley     Date: 1/02/01    Time: 2:49a
 * Created in $/IjuScripter, IjuConsole/Source/Tk Base
 * Initial check-in.
 */

/* End of TKFILEFILTER.C */
1	dashley	25	/* $Header: /cvsroot/esrg/sfesrg/esrgpcpj/shared/tk_base/tkfilefilter.c,v 1.1.1.1 2001/06/13 05:00:16 dtashley Exp $ */
2
3			/*
4			* tkFileFilter.c --
5			*
6			* Process the -filetypes option for the file dialogs on Windows and the
7			* Mac.
8			*
9			* Copyright (c) 1996 Sun Microsystems, Inc.
10			*
11			* See the file "license.terms" for information on usage and redistribution
12			* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
13			*
14			* RCS: @(#) $Id: tkfilefilter.c,v 1.1.1.1 2001/06/13 05:00:16 dtashley Exp $
15			*/
16
17			#include "tkInt.h"
18			#include "tkFileFilter.h"
19
20			static int AddClause _ANSI_ARGS_((
21			Tcl_Interp * interp, FileFilter * filterPtr,
22			char * patternsStr, char * ostypesStr,
23			int isWindows));
24			static void FreeClauses _ANSI_ARGS_((FileFilter * filterPtr));
25			static void FreeGlobPatterns _ANSI_ARGS_((
26			FileFilterClause * clausePtr));
27			static void FreeMacFileTypes _ANSI_ARGS_((
28			FileFilterClause * clausePtr));
29			static FileFilter * GetFilter _ANSI_ARGS_((FileFilterList * flistPtr,
30			char * name));
31
32			/*
33			*----------------------------------------------------------------------
34			*
35			* TkInitFileFilters --
36			*
37			* Initializes a FileFilterList data structure. A FileFilterList
38			* must be initialized EXACTLY ONCE before any calls to
39			* TkGetFileFilters() is made. The usual flow of control is:
40			* TkInitFileFilters(&flist);
41			* TkGetFileFilters(&flist, ...);
42			* TkGetFileFilters(&flist, ...);
43			* ...
44			* TkFreeFileFilters(&flist);
45			*
46			* Results:
47			* None.
48			*
49			* Side effects:
50			* The fields in flistPtr are initialized.
51			*----------------------------------------------------------------------
52			*/
53
54			void
55			TkInitFileFilters(flistPtr)
56			FileFilterList * flistPtr; /* The structure to be initialized. */
57			{
58			flistPtr->filters = NULL;
59			flistPtr->filtersTail = NULL;
60			flistPtr->numFilters = 0;
61			}
62
63			/*
64			*----------------------------------------------------------------------
65			*
66			* TkGetFileFilters --
67			*
68			* This function is called by the Mac and Windows implementation
69			* of tk_getOpenFile and tk_getSaveFile to translate the string
70			* value of the -filetypes option of into an easy-to-parse C
71			* structure (flistPtr). The caller of this function will then use
72			* flistPtr to perform filetype matching in a platform specific way.
73			*
74			* flistPtr must be initialized (See comments in TkInitFileFilters).
75			*
76			* Results:
77			* A standard TCL return value.
78			*
79			* Side effects:
80			* The fields in flistPtr are changed according to string.
81			*----------------------------------------------------------------------
82			*/
83			int
84			TkGetFileFilters(interp, flistPtr, string, isWindows)
85			Tcl_Interp interp; / Interpreter to use for error reporting. */
86			FileFilterList * flistPtr; /* Stores the list of file filters. */
87			char * string; /* Value of the -filetypes option. */
88			int isWindows; /* True if we are running on Windows. */
89			{
90			int listArgc;
91			char ** listArgv = NULL;
92			char ** typeInfo = NULL;
93			int code = TCL_OK;
94			int i;
95
96			if (Tcl_SplitList(interp, string, &listArgc, &listArgv) != TCL_OK) {
97			return TCL_ERROR;
98			}
99			if (listArgc == 0) {
100			goto done;
101			}
102
103			/*
104			* Free the filter information that have been allocated the previous
105			* time -- the -filefilters option may have been used more than once in
106			* the command line.
107			*/
108			TkFreeFileFilters(flistPtr);
109
110			for (i = 0; i<listArgc; i++) {
111			/*
112			* Each file type should have two or three elements: the first one
113			* is the name of the type and the second is the filter of the type.
114			* The third is the Mac OSType ID, but we don't care about them here.
115			*/
116			int count;
117			FileFilter * filterPtr;
118
119			if (Tcl_SplitList(interp, listArgv[i], &count, &typeInfo) != TCL_OK) {
120			code = TCL_ERROR;
121			goto done;
122			}
123
124			if (count != 2 && count != 3) {
125			Tcl_AppendResult(interp, "bad file type \"", listArgv[i], "\", ",
126			"should be \"typeName {extension ?extensions ...?} ",
127			"?{macType ?macTypes ...?}?\"", NULL);
128			code = TCL_ERROR;
129			goto done;
130			}
131
132			filterPtr = GetFilter(flistPtr, typeInfo[0]);
133
134			if (count == 2) {
135			code = AddClause(interp, filterPtr, typeInfo[1], NULL,
136			isWindows);
137			} else {
138			code = AddClause(interp, filterPtr, typeInfo[1], typeInfo[2],
139			isWindows);
140			}
141			if (code != TCL_OK) {
142			goto done;
143			}
144
145			if (typeInfo) {
146			ckfree((char*)typeInfo);
147			}
148			typeInfo = NULL;
149			}
150
151			done:
152			if (typeInfo) {
153			ckfree((char*)typeInfo);
154			}
155			if (listArgv) {
156			ckfree((char*)listArgv);
157			}
158			return code;
159			}
160
161			/*
162			*----------------------------------------------------------------------
163			*
164			* TkFreeFileFilters --
165			*
166			* Frees the malloc'ed file filter information.
167			*
168			* Results:
169			* None.
170			*
171			* Side effects:
172			* The fields allocated by TkGetFileFilters() are freed.
173			*----------------------------------------------------------------------
174			*/
175
176			void
177			TkFreeFileFilters(flistPtr)
178			FileFilterList * flistPtr; /* List of file filters to free */
179			{
180			FileFilter * filterPtr, *toFree;
181
182			filterPtr=flistPtr->filters;
183			while (filterPtr) {
184			toFree = filterPtr;
185			filterPtr=filterPtr->next;
186			FreeClauses(toFree);
187			ckfree((char*)toFree->name);
188			ckfree((char*)toFree);
189			}
190			flistPtr->filters = NULL;
191			}
192
193			/*
194			*----------------------------------------------------------------------
195			*
196			* AddClause --
197			*
198			* Add one FileFilterClause to filterPtr.
199			*
200			* Results:
201			* A standard TCL result.
202			*
203			* Side effects:
204			* The list of filter clauses are updated in filterPtr.
205			*----------------------------------------------------------------------
206			*/
207
208			static int AddClause(interp, filterPtr, patternsStr, ostypesStr, isWindows)
209			Tcl_Interp * interp; /* Interpreter to use for error reporting. */
210			FileFilter * filterPtr; /* Stores the new filter clause */
211			char * patternsStr; /* A TCL list of glob patterns. */
212			char * ostypesStr; /* A TCL list of Mac OSType strings. */
213			int isWindows; /* True if we are running on Windows; False
214			* if we are running on the Mac; Glob
215			* patterns need to be processed differently
216			* on these two platforms */
217			{
218			char ** globList = NULL;
219			int globCount;
220			char ** ostypeList = NULL;
221			int ostypeCount;
222			FileFilterClause * clausePtr;
223			int i;
224			int code = TCL_OK;
225
226			if (Tcl_SplitList(interp, patternsStr, &globCount, &globList)!= TCL_OK) {
227			code = TCL_ERROR;
228			goto done;
229			}
230			if (ostypesStr != NULL) {
231			if (Tcl_SplitList(interp, ostypesStr, &ostypeCount, &ostypeList)
232			!= TCL_OK) {
233			code = TCL_ERROR;
234			goto done;
235			}
236			for (i=0; i<ostypeCount; i++) {
237			if (strlen(ostypeList[i]) != 4) {
238			Tcl_AppendResult(interp, "bad Macintosh file type \"",
239			ostypeList[i], "\"", NULL);
240			code = TCL_ERROR;
241			goto done;
242			}
243			}
244			}
245
246			/*
247			* Add the clause into the list of clauses
248			*/
249
250			clausePtr = (FileFilterClause*)ckalloc(sizeof(FileFilterClause));
251			clausePtr->patterns = NULL;
252			clausePtr->patternsTail = NULL;
253			clausePtr->macTypes = NULL;
254			clausePtr->macTypesTail = NULL;
255
256			if (filterPtr->clauses == NULL) {
257			filterPtr->clauses = filterPtr->clausesTail = clausePtr;
258			} else {
259			filterPtr->clausesTail->next = clausePtr;
260			filterPtr->clausesTail = clausePtr;
261			}
262			clausePtr->next = NULL;
263
264			if (globCount > 0 && globList != NULL) {
265			for (i=0; i<globCount; i++) {
266			GlobPattern * globPtr = (GlobPattern*)ckalloc(sizeof(GlobPattern));
267			int len;
268
269			len = (strlen(globList[i]) + 1) * sizeof(char);
270
271			if (globList[i][0] && globList[i][0] != '*') {
272			/*
273			* Prepend a "" to patterns that do not have a leading ""
274			*/
275			globPtr->pattern = (char*)ckalloc(len+1);
276			globPtr->pattern[0] = '*';
277			strcpy(globPtr->pattern+1, globList[i]);
278			}
279			else if (isWindows) {
280			if (strcmp(globList[i], "*") == 0) {
281			globPtr->pattern = (char)ckalloc(4sizeof(char));
282			strcpy(globPtr->pattern, ".");
283			}
284			else if (strcmp(globList[i], "") == 0) {
285			/*
286			* An empty string means "match all files with no
287			* extensions"
288			* BUG: "*." actually matches with all files on Win95
289			*/
290			globPtr->pattern = (char)ckalloc(3sizeof(char));
291			strcpy(globPtr->pattern, "*.");
292			}
293			else {
294			globPtr->pattern = (char*)ckalloc(len);
295			strcpy(globPtr->pattern, globList[i]);
296			}
297			} else {
298			globPtr->pattern = (char*)ckalloc(len);
299			strcpy(globPtr->pattern, globList[i]);
300			}
301
302			/*
303			* Add the glob pattern into the list of patterns.
304			*/
305
306			if (clausePtr->patterns == NULL) {
307			clausePtr->patterns = clausePtr->patternsTail = globPtr;
308			} else {
309			clausePtr->patternsTail->next = globPtr;
310			clausePtr->patternsTail = globPtr;
311			}
312			globPtr->next = NULL;
313			}
314			}
315			if (ostypeCount > 0 && ostypeList != NULL) {
316			for (i=0; i<ostypeCount; i++) {
317			MacFileType * mfPtr = (MacFileType*)ckalloc(sizeof(MacFileType));
318
319			memcpy(&mfPtr->type, ostypeList[i], sizeof(OSType));
320
321			/*
322			* Add the Mac type pattern into the list of Mac types
323			*/
324			if (clausePtr->macTypes == NULL) {
325			clausePtr->macTypes = clausePtr->macTypesTail = mfPtr;
326			} else {
327			clausePtr->macTypesTail->next = mfPtr;
328			clausePtr->macTypesTail = mfPtr;
329			}
330			mfPtr->next = NULL;
331			}
332			}
333
334			done:
335			if (globList) {
336			ckfree((char*)globList);
337			}
338			if (ostypeList) {
339			ckfree((char*)ostypeList);
340			}
341
342			return code;
343			}
344
345			/*
346			*----------------------------------------------------------------------
347			*
348			* GetFilter --
349			*
350			* Add one FileFilter to flistPtr.
351			*
352			* Results:
353			* A standard TCL result.
354			*
355			* Side effects:
356			* The list of filters are updated in flistPtr.
357			*----------------------------------------------------------------------
358			*/
359
360			static FileFilter * GetFilter(flistPtr, name)
361			FileFilterList * flistPtr; /* The FileFilterList that contains the
362			* newly created filter */
363			char * name; /* Name of the filter. It is usually displayed
364			* in the "File Types" listbox in the file
365			* dialogs. */
366			{
367			FileFilter * filterPtr;
368
369			for (filterPtr=flistPtr->filters; filterPtr; filterPtr=filterPtr->next) {
370			if (strcmp(filterPtr->name, name)==0) {
371			return filterPtr;
372			}
373			}
374
375			filterPtr = (FileFilter*)ckalloc(sizeof(FileFilter));
376			filterPtr->clauses = NULL;
377			filterPtr->clausesTail = NULL;
378			filterPtr->name = (char)ckalloc((strlen(name)+1) sizeof(char));
379			strcpy(filterPtr->name, name);
380
381			if (flistPtr->filters == NULL) {
382			flistPtr->filters = flistPtr->filtersTail = filterPtr;
383			} else {
384			flistPtr->filtersTail->next = filterPtr;
385			flistPtr->filtersTail = filterPtr;
386			}
387			filterPtr->next = NULL;
388
389			++flistPtr->numFilters;
390			return filterPtr;
391			}
392
393			/*
394			*----------------------------------------------------------------------
395			*
396			* FreeClauses --
397			*
398			* Frees the malloc'ed file type clause
399			*
400			* Results:
401			* None.
402			*
403			* Side effects:
404			* The list of clauses in filterPtr->clauses are freed.
405			*----------------------------------------------------------------------
406			*/
407
408			static void
409			FreeClauses(filterPtr)
410			FileFilter * filterPtr; /* FileFilter whose clauses are to be freed */
411			{
412			FileFilterClause * clausePtr, * toFree;
413
414			clausePtr = filterPtr->clauses;
415			while (clausePtr) {
416			toFree = clausePtr;
417			clausePtr=clausePtr->next;
418			FreeGlobPatterns(toFree);
419			FreeMacFileTypes(toFree);
420			ckfree((char*)toFree);
421			}
422			filterPtr->clauses = NULL;
423			filterPtr->clausesTail = NULL;
424			}
425
426			/*
427			*----------------------------------------------------------------------
428			*
429			* FreeGlobPatterns --
430			*
431			* Frees the malloc'ed glob patterns in a clause
432			*
433			* Results:
434			* None.
435			*
436			* Side effects:
437			* The list of glob patterns in clausePtr->patterns are freed.
438			*----------------------------------------------------------------------
439			*/
440
441			static void
442			FreeGlobPatterns(clausePtr)
443			FileFilterClause * clausePtr;/* The clause whose patterns are to be freed*/
444			{
445			GlobPattern * globPtr, * toFree;
446
447			globPtr = clausePtr->patterns;
448			while (globPtr) {
449			toFree = globPtr;
450			globPtr=globPtr->next;
451
452			ckfree((char*)toFree->pattern);
453			ckfree((char*)toFree);
454			}
455			clausePtr->patterns = NULL;
456			}
457
458			/*
459			*----------------------------------------------------------------------
460			*
461			* FreeMacFileTypes --
462			*
463			* Frees the malloc'ed Mac file types in a clause
464			*
465			* Results:
466			* None.
467			*
468			* Side effects:
469			* The list of Mac file types in clausePtr->macTypes are freed.
470			*----------------------------------------------------------------------
471			*/
472
473			static void
474			FreeMacFileTypes(clausePtr)
475			FileFilterClause * clausePtr; /* The clause whose mac types are to be
476			* freed */
477			{
478			MacFileType * mfPtr, * toFree;
479
480			mfPtr = clausePtr->macTypes;
481			while (mfPtr) {
482			toFree = mfPtr;
483			mfPtr=mfPtr->next;
484			ckfree((char*)toFree);
485			}
486			clausePtr->macTypes = NULL;
487			}
488
489
490			/* $History: tkFileFilter.c $
491			*
492			* *************** Version 1 ***************
493			* User: Dtashley Date: 1/02/01 Time: 2:49a
494			* Created in $/IjuScripter, IjuConsole/Source/Tk Base
495			* Initial check-in.
496			*/
497
498			/* End of TKFILEFILTER.C */