[wxWidgets.git] / src / mac / xpm / data.c

/*
 * Copyright (C) 1989-95 GROUPE BULL
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
 * deal in the Software without restriction, including without limitation the
 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
 * sell copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * GROUPE BULL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 * Except as contained in this notice, the name of GROUPE BULL shall not be
 * used in advertising or otherwise to promote the sale, use or other dealings
 * in this Software without prior written authorization from GROUPE BULL.
 */

/*****************************************************************************\
* data.c:                                                                     *
*                                                                             *
*  XPM library                                                                *
*  IO utilities                                                               *
*                                                                             *
*  Developed by Arnaud Le Hors                                                *
\*****************************************************************************/

#ifndef CXPMPROG
/* Official version number */
static char *RCS_Version = "$XpmVersion: 3.4k $";

/* Internal version number */
static char *RCS_Id = "$Id$";

#include "XpmI.h"
#endif
#include <ctype.h>

#ifndef CXPMPROG
#define Getc(data, file) getc(file)
#define Ungetc(data, c, file) ungetc(c, file)
#endif

static int
ParseComment(data)
    xpmData *data;
{
    if (data->type == XPMBUFFER) {
	register char c;
	register unsigned int n = 0;
	unsigned int notend;
	char *s, *s2;

	s = data->Comment;
	*s = data->Bcmt[0];

	/* skip the string beginning comment */
	s2 = data->Bcmt;
	do {
	    c = *data->cptr++;
	    *++s = c;
	    n++;
	    s2++;
	} while (c == *s2 && *s2 != '\0' && c);

	if (*s2 != '\0') {
	    /* this wasn't the beginning of a comment */
	    data->cptr -= n;
	    return 0;
	}
	/* store comment */
	data->Comment[0] = *s;
	s = data->Comment;
	notend = 1;
	n = 0;
	while (notend) {
	    s2 = data->Ecmt;
	    while (*s != *s2 && c) {
		c = *data->cptr++;
		if (n == XPMMAXCMTLEN - 1)  { /* forget it */
		    s = data->Comment;
		    n = 0;
		}
		*++s = c;
		n++;
	    }
	    data->CommentLength = n;
	    do {
		c = *data->cptr++;
		if (n == XPMMAXCMTLEN - 1)  { /* forget it */
		    s = data->Comment;
		    n = 0;
		}
		*++s = c;
		n++;
		s2++;
	    } while (c == *s2 && *s2 != '\0' && c);
	    if (*s2 == '\0') {
		/* this is the end of the comment */
		notend = 0;
		data->cptr--;
	    }
	}
	return 0;
    } else {
	FILE *file = data->stream.file;
	register int c;
	register unsigned int n = 0, a;
	unsigned int notend;
	char *s, *s2;

	s = data->Comment;
	*s = data->Bcmt[0];

	/* skip the string beginning comment */
	s2 = data->Bcmt;
	do {
	    c = Getc(data, file);
	    *++s = c;
	    n++;
	    s2++;
	} while (c == *s2 && *s2 != '\0' && c != EOF);

	if (*s2 != '\0') {
	    /* this wasn't the beginning of a comment */
	    /* put characters back in the order that we got them */
	    for (a = n; a > 0; a--, s--)
		Ungetc(data, *s, file);
	    return 0;
	}
	/* store comment */
	data->Comment[0] = *s;
	s = data->Comment;
	notend = 1;
	n = 0;
	while (notend) {
	    s2 = data->Ecmt;
	    while (*s != *s2 && c != EOF) {
		c = Getc(data, file);
		if (n == XPMMAXCMTLEN - 1)  { /* forget it */
		    s = data->Comment;
		    n = 0;
		}
		*++s = c;
		n++;
	    }
	    data->CommentLength = n;
	    do {
		c = Getc(data, file);
		if (n == XPMMAXCMTLEN - 1)  { /* forget it */
		    s = data->Comment;
		    n = 0;
		}
		*++s = c;
		n++;
		s2++;
	    } while (c == *s2 && *s2 != '\0' && c != EOF);
	    if (*s2 == '\0') {
		/* this is the end of the comment */
		notend = 0;
		Ungetc(data, *s, file);
	    }
	}
	return 0;
    }
}

/*
 * skip to the end of the current string and the beginning of the next one
 */
int
xpmNextString(data)
    xpmData *data;
{
    if (!data->type)
	data->cptr = (data->stream.data)[++data->line];
    else if (data->type == XPMBUFFER) {
	register char c;

	/* get to the end of the current string */
	if (data->Eos)
	    while ((c = *data->cptr++)!=NULL && c != data->Eos)
	    {}

	/*
	 * then get to the beginning of the next string looking for possible
	 * comment
	 */
	if (data->Bos) {
	    while ((c = *data->cptr++)!=NULL  && c != data->Bos)
		if (data->Bcmt && c == data->Bcmt[0])
		    ParseComment(data);
	} else if (data->Bcmt) {	/* XPM2 natural */
	    while ((c = *data->cptr++) == data->Bcmt[0])
		ParseComment(data);
	    data->cptr--;
	}
    } else {
	register int c;
	FILE *file = data->stream.file;

	/* get to the end of the current string */
	if (data->Eos)
	    while ((c = Getc(data, file))!=NULL  != data->Eos && c != EOF)
	    {}

	/*
	 * then get to the beginning of the next string looking for possible
	 * comment
	 */
	if (data->Bos) {
	    while ((c = Getc(data, file)) != data->Bos && c != EOF)
		if (data->Bcmt && c == data->Bcmt[0])
		    ParseComment(data);

	} else if (data->Bcmt) {	/* XPM2 natural */
	    while ((c = Getc(data, file)) == data->Bcmt[0])
		ParseComment(data);
	    Ungetc(data, c, file);
	}
    }
    return 0;
}


/*
 * skip whitespace and return the following word
 */
unsigned int
xpmNextWord(data, buf, buflen)
    xpmData *data;
    char *buf;
    unsigned int buflen;
{
    register unsigned int n = 0;
    int c;

    if (!data->type || data->type == XPMBUFFER) {
	while (isspace(c = *data->cptr) && c != data->Eos)
	    data->cptr++;
	do {
	    c = *data->cptr++;
	    *buf++ = c;
	    n++;
	} while (!isspace(c) && c != data->Eos && n < buflen);
	n--;
	data->cptr--;
    } else {
	FILE *file = data->stream.file;

	while ((c = Getc(data, file)) != EOF && isspace(c) && c != data->Eos)
	{
	}
	while (!isspace(c) && c != data->Eos && c != EOF && n < buflen) {
	    *buf++ = c;
	    n++;
	    c = Getc(data, file);
	}
	Ungetc(data, c, file);
    }
    return (n);
}

/*
 * skip whitespace and compute the following unsigned int,
 * returns 1 if one is found and 0 if not
 */
int
xpmNextUI(data, ui_return)
    xpmData *data;
    unsigned int *ui_return;
{
    char buf[BUFSIZ];
    int l;

    l = xpmNextWord(data, buf, BUFSIZ);
    return xpmatoui(buf, l, ui_return);
}

/*
 * return end of string - WARNING: malloc!
 */
int
xpmGetString(data, sptr, l)
    xpmData *data;
    char **sptr;
    unsigned int *l;
{
    unsigned int i, n = 0;
    int c;
    char *p = NULL, *q, buf[BUFSIZ];

    if (!data->type || data->type == XPMBUFFER) {
	if (data->cptr) {
	    char *start = data->cptr;
	    while ((c = *data->cptr)!=NULL  && c != data->Eos)
		data->cptr++;
	    n = data->cptr - start + 1;
	    p = (char *) XpmMalloc(n);
	    if (!p)
		return (XpmNoMemory);
	    strncpy(p, start, n);
	    if (data->type)		/* XPMBUFFER */
		p[n - 1] = '\0';
	}
    } else {
	FILE *file = data->stream.file;

	if ((c = Getc(data, file)) == EOF)
	    return (XpmFileInvalid);

	i = 0;
	q = buf;
	p = (char *) XpmMalloc(1);
	while (c != data->Eos && c != EOF) {
	    if (i == BUFSIZ) {
		/* get to the end of the buffer */
		/* malloc needed memory */
		q = (char *) XpmRealloc(p, n + i);
		if (!q) {
		    XpmFree(p);
		    return (XpmNoMemory);
		}
		p = q;
		q += n;
		/* and copy what we already have */
		strncpy(q, buf, i);
		n += i;
		i = 0;
		q = buf;
	    }
	    *q++ = c;
	    i++;
	    c = Getc(data, file);
	}
	if (c == EOF) {
	    XpmFree(p);
	    return (XpmFileInvalid);
	}
	if (n + i != 0) {
	    /* malloc needed memory */
	    q = (char *) XpmRealloc(p, n + i + 1);
	    if (!q) {
		XpmFree(p);
		return (XpmNoMemory);
	    }
	    p = q;
	    q += n;
	    /* and copy the buffer */
	    strncpy(q, buf, i);
	    n += i;
	    p[n++] = '\0';
	} else {
	    *p = '\0';
	    n = 1;
	}
	Ungetc(data, c, file);
    }
    *sptr = p;
    *l = n;
    return (XpmSuccess);
}

/*
 * get the current comment line
 */
int
xpmGetCmt(data, cmt)
    xpmData *data;
    char **cmt;
{
    if (!data->type)
	*cmt = NULL;
    else if (data->CommentLength) {
	*cmt = (char *) XpmMalloc(data->CommentLength + 1);
	strncpy(*cmt, data->Comment, data->CommentLength);
	(*cmt)[data->CommentLength] = '\0';
	data->CommentLength = 0;
    } else
	*cmt = NULL;
    return 0;
}

xpmDataType xpmDataTypes[] =
{
    "", "!", "\n", '\0', '\n', "", "", "", "",	/* Natural type */
    "C", "/*", "*/", '"', '"', ",\n", "static char *", "[] = {\n", "};\n",
    "Lisp", ";", "\n", '"', '"', "\n", "(setq ", " '(\n", "))\n",
#ifdef VMS
    NULL
#else
    NULL, NULL, NULL, 0, 0, NULL, NULL, NULL, NULL
#endif
};

/*
 * parse xpm header
 */
int
xpmParseHeader(data)
    xpmData *data;
{
    char buf[BUFSIZ];
    int l, n = 0;

    if (data->type) {
	data->Bos = '\0';
	data->Eos = '\n';
	data->Bcmt = data->Ecmt = NULL;
	l = xpmNextWord(data, buf, BUFSIZ);
	if (l == 7 && !strncmp("#define", buf, 7)) {
	    /* this maybe an XPM 1 file */
	    char *ptr;

	    l = xpmNextWord(data, buf, BUFSIZ);
	    if (!l)
		return (XpmFileInvalid);
	    buf[l] = '\0';
	    #ifdef macintosh
	    ptr = strrchr(buf, '_');
	    #else
	    ptr = rindex(buf, '_');
	    #endif
	    if (!ptr || strncmp("_format", ptr, l - (ptr - buf)))
		return XpmFileInvalid;
	    /* this is definitely an XPM 1 file */
	    data->format = 1;
	    n = 1;			/* handle XPM1 as mainly XPM2 C */
	} else {

	    /*
	     * skip the first word, get the second one, and see if this is
	     * XPM 2 or 3
	     */
	    l = xpmNextWord(data, buf, BUFSIZ);
	    if ((l == 3 && !strncmp("XPM", buf, 3)) ||
		(l == 4 && !strncmp("XPM2", buf, 4))) {
		if (l == 3)
		    n = 1;		/* handle XPM as XPM2 C */
		else {
		    /* get the type key word */
		    l = xpmNextWord(data, buf, BUFSIZ);

		    /*
		     * get infos about this type
		     */
		    while (xpmDataTypes[n].type
			   && strncmp(xpmDataTypes[n].type, buf, l))
			n++;
		}
		data->format = 0;
	    } else
		/* nope this is not an XPM file */
		return XpmFileInvalid;
	}
	if (xpmDataTypes[n].type) {
	    if (n == 0) {		/* natural type */
		data->Bcmt = xpmDataTypes[n].Bcmt;
		data->Ecmt = xpmDataTypes[n].Ecmt;
		xpmNextString(data);	/* skip the end of the headerline */
		data->Bos = xpmDataTypes[n].Bos;
		data->Eos = xpmDataTypes[n].Eos;
	    } else {
		data->Bcmt = xpmDataTypes[n].Bcmt;
		data->Ecmt = xpmDataTypes[n].Ecmt;
		if (!data->format) {	/* XPM 2 or 3 */
		    data->Bos = xpmDataTypes[n].Bos;
		    data->Eos = '\0';
		    /* get to the beginning of the first string */
		    xpmNextString(data);
		    data->Eos = xpmDataTypes[n].Eos;
		} else			/* XPM 1 skip end of line */
		    xpmNextString(data);
	    }
	} else
	    /* we don't know about that type of XPM file... */
	    return XpmFileInvalid;
    }
    return XpmSuccess;
}
Commit	Line	Data
0240e8b1 SC	1	/*
	2	* Copyright (C) 1989-95 GROUPE BULL
	3	*
	4	* Permission is hereby granted, free of charge, to any person obtaining a copy
	5	* of this software and associated documentation files (the "Software"), to
	6	* deal in the Software without restriction, including without limitation the
	7	* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
	8	* sell copies of the Software, and to permit persons to whom the Software is
	9	* furnished to do so, subject to the following conditions:
	10	*
	11	* The above copyright notice and this permission notice shall be included in
	12	* all copies or substantial portions of the Software.
	13	*
	14	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	15	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	16	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	17	* GROUPE BULL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
	18	* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
	19	* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
	20	*
	21	* Except as contained in this notice, the name of GROUPE BULL shall not be
	22	* used in advertising or otherwise to promote the sale, use or other dealings
	23	* in this Software without prior written authorization from GROUPE BULL.
	24	*/
	25
	26	/*****************************************************************************\
	27	* data.c: *
	28	* *
	29	* XPM library *
	30	* IO utilities *
	31	* *
	32	* Developed by Arnaud Le Hors *
	33	\*****************************************************************************/
	34
	35	#ifndef CXPMPROG
	36	/* Official version number */
	37	static char *RCS_Version = "$XpmVersion: 3.4k $";
	38
	39	/* Internal version number */
	40	static char *RCS_Id = "$Id$";
	41
2f1ae414	42	#include "XpmI.h"
0240e8b1 SC	43	#endif
	44	#include <ctype.h>
	45
	46	#ifndef CXPMPROG
	47	#define Getc(data, file) getc(file)
	48	#define Ungetc(data, c, file) ungetc(c, file)
	49	#endif
	50
	51	static int
	52	ParseComment(data)
	53	xpmData *data;
	54	{
	55	if (data->type == XPMBUFFER) {
	56	register char c;
	57	register unsigned int n = 0;
	58	unsigned int notend;
	59	char s, s2;
	60
	61	s = data->Comment;
	62	*s = data->Bcmt[0];
	63
	64	/* skip the string beginning comment */
	65	s2 = data->Bcmt;
	66	do {
	67	c = *data->cptr++;
	68	*++s = c;
	69	n++;
	70	s2++;
	71	} while (c == s2 && s2 != '\0' && c);
	72
	73	if (*s2 != '\0') {
	74	/* this wasn't the beginning of a comment */
	75	data->cptr -= n;
	76	return 0;
	77	}
	78	/* store comment */
	79	data->Comment[0] = *s;
	80	s = data->Comment;
	81	notend = 1;
	82	n = 0;
	83	while (notend) {
	84	s2 = data->Ecmt;
	85	while (s != s2 && c) {
	86	c = *data->cptr++;
	87	if (n == XPMMAXCMTLEN - 1) { /* forget it */
	88	s = data->Comment;
	89	n = 0;
	90	}
	91	*++s = c;
	92	n++;
	93	}
	94	data->CommentLength = n;
	95	do {
	96	c = *data->cptr++;
	97	if (n == XPMMAXCMTLEN - 1) { /* forget it */
	98	s = data->Comment;
	99	n = 0;
	100	}
	101	*++s = c;
	102	n++;
	103	s2++;
	104	} while (c == s2 && s2 != '\0' && c);
	105	if (*s2 == '\0') {
	106	/* this is the end of the comment */
107	notend = 0;
108	data->cptr--;
109	}
110	}
111	return 0;
112	} else {
113	FILE *file = data->stream.file;
114	register int c;
115	register unsigned int n = 0, a;
116	unsigned int notend;
117	char s, s2;
118
119	s = data->Comment;
120	*s = data->Bcmt[0];
121
122	/* skip the string beginning comment */
123	s2 = data->Bcmt;
124	do {
125	c = Getc(data, file);
126	*++s = c;
127	n++;
128	s2++;
129	} while (c == s2 && s2 != '\0' && c != EOF);
130
131	if (*s2 != '\0') {
132	/* this wasn't the beginning of a comment */
133	/* put characters back in the order that we got them */
134	for (a = n; a > 0; a--, s--)
135	Ungetc(data, *s, file);
136	return 0;
137	}
138	/* store comment */
139	data->Comment[0] = *s;
140	s = data->Comment;
141	notend = 1;
142	n = 0;
143	while (notend) {
144	s2 = data->Ecmt;
145	while (s != s2 && c != EOF) {
146	c = Getc(data, file);
147	if (n == XPMMAXCMTLEN - 1) { /* forget it */
148	s = data->Comment;
149	n = 0;
150	}
151	*++s = c;
152	n++;
153	}
154	data->CommentLength = n;
155	do {
156	c = Getc(data, file);
157	if (n == XPMMAXCMTLEN - 1) { /* forget it */
158	s = data->Comment;
159	n = 0;
160	}
161	*++s = c;
162	n++;
163	s2++;
164	} while (c == s2 && s2 != '\0' && c != EOF);
165	if (*s2 == '\0') {
166	/* this is the end of the comment */
167	notend = 0;
168	Ungetc(data, *s, file);
169	}
170	}
171	return 0;
172	}
173	}
174
175	/*
176	* skip to the end of the current string and the beginning of the next one
177	*/
178	int
179	xpmNextString(data)
180	xpmData *data;
181	{
182	if (!data->type)
183	data->cptr = (data->stream.data)[++data->line];
184	else if (data->type == XPMBUFFER) {
185	register char c;
186
187	/* get to the end of the current string */
188	if (data->Eos)
189	while ((c = *data->cptr++)!=NULL && c != data->Eos)
190	{}
191
192	/*
193	* then get to the beginning of the next string looking for possible
194	* comment
195	*/
196	if (data->Bos) {
197	while ((c = *data->cptr++)!=NULL && c != data->Bos)
198	if (data->Bcmt && c == data->Bcmt[0])
199	ParseComment(data);
200	} else if (data->Bcmt) { /* XPM2 natural */
201	while ((c = *data->cptr++) == data->Bcmt[0])
202	ParseComment(data);
203	data->cptr--;
204	}
205	} else {
206	register int c;
207	FILE *file = data->stream.file;
208
209	/* get to the end of the current string */
210	if (data->Eos)
211	while ((c = Getc(data, file))!=NULL != data->Eos && c != EOF)
212	{}
213
214	/*
215	* then get to the beginning of the next string looking for possible
216	* comment
217	*/
218	if (data->Bos) {
219	while ((c = Getc(data, file)) != data->Bos && c != EOF)
220	if (data->Bcmt && c == data->Bcmt[0])
221	ParseComment(data);
222
223	} else if (data->Bcmt) { /* XPM2 natural */
224	while ((c = Getc(data, file)) == data->Bcmt[0])
225	ParseComment(data);
226	Ungetc(data, c, file);
227	}
228	}
229	return 0;
230	}
231
232
233	/*
234	* skip whitespace and return the following word
235	*/
236	unsigned int
237	xpmNextWord(data, buf, buflen)
238	xpmData *data;
239	char *buf;
240	unsigned int buflen;
241	{
242	register unsigned int n = 0;
243	int c;
244
245	if (!data->type \|\| data->type == XPMBUFFER) {
246	while (isspace(c = *data->cptr) && c != data->Eos)
247	data->cptr++;
248	do {
249	c = *data->cptr++;
250	*buf++ = c;
251	n++;
252	} while (!isspace(c) && c != data->Eos && n < buflen);
253	n--;
254	data->cptr--;
255	} else {
256	FILE *file = data->stream.file;
257
258	while ((c = Getc(data, file)) != EOF && isspace(c) && c != data->Eos)
259	{
260	}
261	while (!isspace(c) && c != data->Eos && c != EOF && n < buflen) {
262	*buf++ = c;
263	n++;
264	c = Getc(data, file);
265	}
266	Ungetc(data, c, file);
267	}
268	return (n);
269	}
270
271	/*
272	* skip whitespace and compute the following unsigned int,
273	* returns 1 if one is found and 0 if not
274	*/
275	int
276	xpmNextUI(data, ui_return)
277	xpmData *data;
278	unsigned int *ui_return;
279	{
280	char buf[BUFSIZ];
281	int l;
282
283	l = xpmNextWord(data, buf, BUFSIZ);
284	return xpmatoui(buf, l, ui_return);
285	}
286
287	/*
288	* return end of string - WARNING: malloc!
289	*/
290	int
291	xpmGetString(data, sptr, l)
292	xpmData *data;
293	char **sptr;
294	unsigned int *l;
295	{
296	unsigned int i, n = 0;
297	int c;
298	char p = NULL, q, buf[BUFSIZ];
299
300	if (!data->type \|\| data->type == XPMBUFFER) {
301	if (data->cptr) {
302	char *start = data->cptr;
303	while ((c = *data->cptr)!=NULL && c != data->Eos)
304	data->cptr++;
305	n = data->cptr - start + 1;
306	p = (char *) XpmMalloc(n);
307	if (!p)
308	return (XpmNoMemory);
309	strncpy(p, start, n);
310	if (data->type) /* XPMBUFFER */
311	p[n - 1] = '\0';
312	}
313	} else {
314	FILE *file = data->stream.file;
315
316	if ((c = Getc(data, file)) == EOF)
317	return (XpmFileInvalid);
318
319	i = 0;
320	q = buf;
321	p = (char *) XpmMalloc(1);
322	while (c != data->Eos && c != EOF) {
323	if (i == BUFSIZ) {
324	/* get to the end of the buffer */
325	/* malloc needed memory */
326	q = (char *) XpmRealloc(p, n + i);
327	if (!q) {
328	XpmFree(p);
329	return (XpmNoMemory);
330	}
331	p = q;
332	q += n;
333	/* and copy what we already have */
334	strncpy(q, buf, i);
335	n += i;
336	i = 0;
337	q = buf;
338	}
339	*q++ = c;
340	i++;
341	c = Getc(data, file);
342	}
343	if (c == EOF) {
344	XpmFree(p);
345	return (XpmFileInvalid);
346	}
347	if (n + i != 0) {
348	/* malloc needed memory */
349	q = (char *) XpmRealloc(p, n + i + 1);
350	if (!q) {
351	XpmFree(p);
352	return (XpmNoMemory);
353	}
354	p = q;
355	q += n;
356	/* and copy the buffer */
357	strncpy(q, buf, i);
358	n += i;
359	p[n++] = '\0';
360	} else {
361	*p = '\0';
362	n = 1;
363	}
364	Ungetc(data, c, file);
365	}
366	*sptr = p;
367	*l = n;
368	return (XpmSuccess);
369	}
370
371	/*
372	* get the current comment line
373	*/
374	int
375	xpmGetCmt(data, cmt)
376	xpmData *data;
377	char **cmt;
378	{
379	if (!data->type)
380	*cmt = NULL;
381	else if (data->CommentLength) {
382	cmt = (char ) XpmMalloc(data->CommentLength + 1);
383	strncpy(*cmt, data->Comment, data->CommentLength);
384	(*cmt)[data->CommentLength] = '\0';
385	data->CommentLength = 0;
386	} else
387	*cmt = NULL;
388	return 0;
389	}
390
391	xpmDataType xpmDataTypes[] =
392	{
393	"", "!", "\n", '\0', '\n', "", "", "", "", /* Natural type */
394	"C", "/", "/", '"', '"', ",\n", "static char *", "[] = {\n", "};\n",
395	"Lisp", ";", "\n", '"', '"', "\n", "(setq ", " '(\n", "))\n",
396	#ifdef VMS
397	NULL
398	#else
399	NULL, NULL, NULL, 0, 0, NULL, NULL, NULL, NULL
400	#endif
401	};
402
403	/*
404	* parse xpm header
405	*/
406	int
407	xpmParseHeader(data)
408	xpmData *data;
409	{
410	char buf[BUFSIZ];
411	int l, n = 0;
412
413	if (data->type) {
414	data->Bos = '\0';
415	data->Eos = '\n';
416	data->Bcmt = data->Ecmt = NULL;
417	l = xpmNextWord(data, buf, BUFSIZ);
418	if (l == 7 && !strncmp("#define", buf, 7)) {
419	/* this maybe an XPM 1 file */
420	char *ptr;
421
422	l = xpmNextWord(data, buf, BUFSIZ);
423	if (!l)
424	return (XpmFileInvalid);
425	buf[l] = '\0';
426	#ifdef macintosh
427	ptr = strrchr(buf, '_');
428	#else
429	ptr = rindex(buf, '_');
430	#endif
431	if (!ptr \|\| strncmp("_format", ptr, l - (ptr - buf)))
432	return XpmFileInvalid;
433	/* this is definitely an XPM 1 file */
434	data->format = 1;
435	n = 1; /* handle XPM1 as mainly XPM2 C */
436	} else {
437
438	/*
439	* skip the first word, get the second one, and see if this is
440	* XPM 2 or 3
441	*/
442	l = xpmNextWord(data, buf, BUFSIZ);
443	if ((l == 3 && !strncmp("XPM", buf, 3)) \|\|
444	(l == 4 && !strncmp("XPM2", buf, 4))) {
445	if (l == 3)
446	n = 1; /* handle XPM as XPM2 C */
447	else {
448	/* get the type key word */
449	l = xpmNextWord(data, buf, BUFSIZ);
450
451	/*
452	* get infos about this type
453	*/
454	while (xpmDataTypes[n].type
455	&& strncmp(xpmDataTypes[n].type, buf, l))
456	n++;
457	}
458	data->format = 0;
459	} else
460	/* nope this is not an XPM file */
461	return XpmFileInvalid;
462	}
463	if (xpmDataTypes[n].type) {
464	if (n == 0) { /* natural type */
465	data->Bcmt = xpmDataTypes[n].Bcmt;
466	data->Ecmt = xpmDataTypes[n].Ecmt;
467	xpmNextString(data); /* skip the end of the headerline */
468	data->Bos = xpmDataTypes[n].Bos;
469	data->Eos = xpmDataTypes[n].Eos;
470	} else {
471	data->Bcmt = xpmDataTypes[n].Bcmt;
472	data->Ecmt = xpmDataTypes[n].Ecmt;
473	if (!data->format) { /* XPM 2 or 3 */
474	data->Bos = xpmDataTypes[n].Bos;
475	data->Eos = '\0';
476	/* get to the beginning of the first string */
477	xpmNextString(data);
478	data->Eos = xpmDataTypes[n].Eos;
479	} else /* XPM 1 skip end of line */
480	xpmNextString(data);
481	}
482	} else
483	/* we don't know about that type of XPM file... */
484	return XpmFileInvalid;
485	}
486	return XpmSuccess;
487	}