/*
* 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 *
\*****************************************************************************/
/* Official version number */
static char *RCS_Version = "$XpmVersion: 3.4g $";
/* Internal version number */
static char *RCS_Id = "$Id: xpm.shar,v 3.52 95/10/09 02:23:53 lehors Exp $";
#include "xpmP.h"
#include <ctype.h>
LFUNC(ParseComment, int, (xpmData * mdata));
static int
ParseComment(mdata)
xpmData *mdata;
{
if (mdata->type == XPMBUFFER)
{
register char c;
register unsigned int n = 0;
unsigned int notend;
char *s, *s2;
s = mdata->Comment;
*s = mdata->Bcmt[0];
/* skip the string beginning comment */
s2 = mdata->Bcmt;
do
{
c = *mdata->cptr++;
*++s = c;
n++;
s2++;
} while (c == *s2 && *s2 != '\0' && c);
if (*s2 != '\0')
{
/* this wasn't the beginning of a comment */
mdata->cptr -= n;
return 0;
}
/* store comment */
mdata->Comment[0] = *s;
s = mdata->Comment;
notend = 1;
n = 0;
while (notend)
{
s2 = mdata->Ecmt;
while (*s != *s2 && c)
{
c = *mdata->cptr++;
if (n == XPMMAXCMTLEN - 1)
{ /* forget it */
s = mdata->Comment;
n = 0;
}
*++s = c;
n++;
}
mdata->CommentLength = n;
do
{
c = *mdata->cptr++;
if (n == XPMMAXCMTLEN - 1)
{ /* forget it */
s = mdata->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;
mdata->cptr--;
}
}
return 0;
} else
{
FILE *file = mdata->stream.file;
register int c;
register unsigned int n = 0, a;
unsigned int notend;
char *s, *s2;
s = mdata->Comment;
*s = mdata->Bcmt[0];
/* skip the string beginning comment */
s2 = mdata->Bcmt;
do
{
c = getc(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(*s, file);
return 0;
}
/* store comment */
mdata->Comment[0] = *s;
s = mdata->Comment;
notend = 1;
n = 0;
while (notend)
{
s2 = mdata->Ecmt;
while (*s != *s2 && c != EOF)
{
c = getc(file);
if (n == XPMMAXCMTLEN - 1)
{ /* forget it */
s = mdata->Comment;
n = 0;
}
*++s = c;
n++;
}
mdata->CommentLength = n;
do
{
c = getc(file);
if (n == XPMMAXCMTLEN - 1)
{ /* forget it */
s = mdata->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(*s, file);
}
}
return 0;
}
}
/*
* skip to the end of the current string and the beginning of the next one
*/
int
xpmNextString(mdata)
xpmData *mdata;
{
if (!mdata->type)
mdata->cptr = (mdata->stream.data)[++mdata->line];
else
if (mdata->type == XPMBUFFER)
{
register char c;
/* get to the end of the current string */
if (mdata->Eos)
while ((c = *mdata->cptr++) && c != mdata->Eos);
/*
* then get to the beginning of the next string looking for possible
* comment
*/
if (mdata->Bos)
{
while ((c = *mdata->cptr++) && c != mdata->Bos)
if (mdata->Bcmt && c == mdata->Bcmt[0])
ParseComment(mdata);
} else
if (mdata->Bcmt)
{ /* XPM2 natural */
while ((c = *mdata->cptr++) == mdata->Bcmt[0])
ParseComment(mdata);
mdata->cptr--;
}
} else
{
register int c;
FILE *file = mdata->stream.file;
/* get to the end of the current string */
if (mdata->Eos)
while ((c = getc(file)) != mdata->Eos && c != EOF);
/*
* then get to the beginning of the next string looking for possible
* comment
*/
if (mdata->Bos)
{
while ((c = getc(file)) != mdata->Bos && c != EOF)
if (mdata->Bcmt && c == mdata->Bcmt[0])
ParseComment(mdata);
} else
if (mdata->Bcmt)
{ /* XPM2 natural */
while ((c = getc(file)) == mdata->Bcmt[0])
ParseComment(mdata);
ungetc(c, file);
}
}
return 0;
}
/*
* skip whitespace and compute the following unsigned int, returns 1 if one
* is found and 0 if not
*/
int
xpmNextUI(mdata, ui_return)
xpmData *mdata;
unsigned int *ui_return;
{
char buf[BUFSIZ];
int l;
l = xpmNextWord(mdata, buf, BUFSIZ);
return xpmatoui(buf, l, ui_return);
}
/*
* skip whitespace and return the following word
*/
unsigned int
xpmNextWord(mdata, buf, buflen)
xpmData *mdata;
char *buf;
unsigned int buflen;
{
register unsigned int n = 0;
int c;
if (!mdata->type || mdata->type == XPMBUFFER)
{
while (isspace(c = *mdata->cptr) && c != mdata->Eos)
mdata->cptr++;
do
{
c = *mdata->cptr++;
*buf++ = c;
n++;
} while (!isspace(c) && c != mdata->Eos && n < buflen);
n--;
mdata->cptr--;
} else
{
FILE *file = mdata->stream.file;
while ((c = getc(file)) != EOF && isspace(c) && c != mdata->Eos);
while (!isspace(c) && c != mdata->Eos && c != EOF && n < buflen)
{
*buf++ = c;
n++;
c = getc(file);
}
ungetc(c, file);
}
return (n);
}
/*
* return end of string - WARNING: malloc!
*/
int
xpmGetString(mdata, sptr, l)
xpmData *mdata;
char **sptr;
unsigned int *l;
{
unsigned int i, n = 0;
int c;
char *p = NULL, *q, buf[BUFSIZ];
if (!mdata->type || mdata->type == XPMBUFFER)
{
if (mdata->cptr)
{
char *start = mdata->cptr;
while ((c = *mdata->cptr) && c != mdata->Eos)
mdata->cptr++;
n = mdata->cptr - start + 1;
p = (char *) XpmMalloc(n);
if (!p)
return (XpmNoMemory);
strncpy(p, start, n);
if (mdata->type) /* XPMBUFFER */
p[n - 1] = '\0';
}
} else
{
FILE *file = mdata->stream.file;
if ((c = getc(file)) == EOF)
return (XpmFileInvalid);
i = 0;
q = buf;
p = (char *) XpmMalloc(1);
while (c != mdata->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(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(c, file);
}
*sptr = p;
*l = n;
return (XpmSuccess);
}
/*
* get the current comment line
*/
int
xpmGetCmt(mdata, cmt)
xpmData *mdata;
char **cmt;
{
if (!mdata->type)
*cmt = NULL;
else
if (mdata->CommentLength)
{
*cmt = (char *) XpmMalloc(mdata->CommentLength + 1);
strncpy(*cmt, mdata->Comment, mdata->CommentLength);
(*cmt)[mdata->CommentLength] = '\0';
mdata->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(mdata)
xpmData *mdata;
{
char buf[BUFSIZ];
int l, n = 0;
if (mdata->type)
{
mdata->Bos = '\0';
mdata->Eos = '\n';
mdata->Bcmt = mdata->Ecmt = NULL;
l = xpmNextWord(mdata, buf, BUFSIZ);
if (l == 7 && !strncmp("#define", buf, 7))
{
/* this maybe an XPM 1 file */
char *ptr;
l = xpmNextWord(mdata, buf, BUFSIZ);
if (!l)
return (XpmFileInvalid);
buf[l] = '\0';
ptr = rindex(buf, '_');
if (!ptr || strncmp("_format", ptr, l - (ptr - buf)))
return XpmFileInvalid;
/* this is definitely an XPM 1 file */
mdata->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(mdata, 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(mdata, buf, BUFSIZ);
/*
* get infos about this type
*/
while (xpmDataTypes[n].type
&& strncmp(xpmDataTypes[n].type, buf, l))
n++;
}
mdata->format = 0;
} else
/* nope this is not an XPM file */
return XpmFileInvalid;
}
if (xpmDataTypes[n].type)
{
if (n == 0)
{ /* natural type */
mdata->Bcmt = xpmDataTypes[n].Bcmt;
mdata->Ecmt = xpmDataTypes[n].Ecmt;
xpmNextString(mdata); /* skip the end of the headerline */
mdata->Bos = xpmDataTypes[n].Bos;
mdata->Eos = xpmDataTypes[n].Eos;
} else
{
mdata->Bcmt = xpmDataTypes[n].Bcmt;
mdata->Ecmt = xpmDataTypes[n].Ecmt;
if (!mdata->format)
{ /* XPM 2 or 3 */
mdata->Bos = xpmDataTypes[n].Bos;
mdata->Eos = '\0';
/* get to the beginning of the first string */
xpmNextString(mdata);
mdata->Eos = xpmDataTypes[n].Eos;
} else /* XPM 1 skip end of line */
xpmNextString(mdata);
}
} else
/* we don't know about that type of XPM file... */
return XpmFileInvalid;
}
return XpmSuccess;
}
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