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/*
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* Copyright (C) 2001 Rob Crittenden (rcrit@greyoak.com)
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* Copyright (C) 2001 Ross Combs (rocombs@cs.nmsu.edu)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#define PREFS_INTERNAL_ACCESS
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#include "common/setup_before.h"
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#include <stdio.h>
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#ifdef HAVE_STDDEF_H
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# include <stddef.h>
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#else
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# ifndef NULL
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# define NULL ((void *)0)
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# endif
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#endif
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#ifdef STDC_HEADERS
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# include <stdlib.h>
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#else
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# ifdef HAVE_MALLOC_H
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# include <malloc.h>
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# endif
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#endif
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#ifdef HAVE_STRING_H
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# include <string.h>
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#else
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# ifdef HAVE_STRINGS_H
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# include <strings.h>
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# endif
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#endif
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#include <ctype.h>
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#include "token.h"
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#include "common/eventlog.h"
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#include "common/setup_after.h"
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/*
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* Given a string and an integer pointer skip past pos characters and return
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* the next white-space delimited string, setting pos to the new position.
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*/
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extern char * next_token(char * ptr, unsigned int * pos)
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{
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unsigned int i;
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unsigned int start;
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int quoted;
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if (!ptr || !pos)
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return NULL;
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/* skip leading whitespace */
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for (i=*pos; isspace((int)ptr[i]); i++);
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if (ptr[i]=='\0')
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return NULL; /* if after whitespace, we're done */
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if (ptr[i]=='"')
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{
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quoted = 1;
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i++;
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}
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else
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quoted = 0;
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start = i;
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for (;;)
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{
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if (ptr[i]=='\0')
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break;
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if (quoted) /* FIXME: add handling of escape chars so quotes can be in tokens */
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{
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if (ptr[i]=='"')
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break;
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}
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else
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if (isspace((int)ptr[i]))
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break;
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i++;
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}
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if (ptr[i]!='\0')
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{
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ptr[i] = '\0'; /* terminate the string */
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*pos = i+1; /* remember the position of the next char */
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}
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else
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*pos = i; /* this was the last token, just remember the NUL */
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return &ptr[start];
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}
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