105 lines
2.3 KiB
C
105 lines
2.3 KiB
C
/* $Id: man_argv.c,v 1.4 2010/06/19 20:46:28 kristaps Exp $ */
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/*
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* Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@bsd.lv>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <sys/types.h>
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#include <assert.h>
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#include <stdlib.h>
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#include <string.h>
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#include "mandoc.h"
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#include "libman.h"
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int
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man_args(struct man *m, int line, int *pos, char *buf, char **v)
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{
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assert(*pos);
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assert(' ' != buf[*pos]);
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if (0 == buf[*pos])
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return(ARGS_EOLN);
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*v = &buf[*pos];
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/*
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* Process a quoted literal. A quote begins with a double-quote
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* and ends with a double-quote NOT preceded by a double-quote.
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* Whitespace is NOT involved in literal termination.
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*/
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if ('\"' == buf[*pos]) {
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*v = &buf[++(*pos)];
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for ( ; buf[*pos]; (*pos)++) {
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if ('\"' != buf[*pos])
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continue;
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if ('\"' != buf[*pos + 1])
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break;
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(*pos)++;
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}
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if (0 == buf[*pos]) {
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if ( ! man_pmsg(m, line, *pos, MANDOCERR_BADQUOTE))
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return(ARGS_ERROR);
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return(ARGS_QWORD);
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}
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buf[(*pos)++] = 0;
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if (0 == buf[*pos])
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return(ARGS_QWORD);
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while (' ' == buf[*pos])
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(*pos)++;
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if (0 == buf[*pos])
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if ( ! man_pmsg(m, line, *pos, MANDOCERR_EOLNSPACE))
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return(ARGS_ERROR);
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return(ARGS_QWORD);
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}
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/*
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* A non-quoted term progresses until either the end of line or
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* a non-escaped whitespace.
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*/
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for ( ; buf[*pos]; (*pos)++)
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if (' ' == buf[*pos] && '\\' != buf[*pos - 1])
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break;
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if (0 == buf[*pos])
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return(ARGS_WORD);
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buf[(*pos)++] = 0;
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while (' ' == buf[*pos])
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(*pos)++;
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if (0 == buf[*pos])
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if ( ! man_pmsg(m, line, *pos, MANDOCERR_EOLNSPACE))
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return(ARGS_ERROR);
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return(ARGS_WORD);
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}
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