File: [local] / src / usr.bin / mandoc / Attic / man_argv.c (download)
Revision 1.2, Sun May 23 22:45:00 2010 UTC (14 years ago) by schwarze
Branch: MAIN
Changes since 1.1: +5 -4 lines
Unified error and warning message system for all of mandoc,
featuring three message levels, as agreed during the mandoc hackathon:
* FATAL parser failure, cannot produce any output from this input file:
eventually, we hope to convert most of these to ERRORs.
* ERROR, meaning mandoc cannot cope fully with the input syntax and will
probably lose information or produce structurally garbled output;
it will try to produce output anyway but exit non-zero at the end,
which is eventually intended to make the ports infrastructure happy.
* WARNING, meaning you should clean up the input file, but output
is probably mostly OK, so this will not cause error-exit at the end.
This commit is mostly just converting the old system to the new one; before
the classification will become really reliable, we must check all messages.
In particular,
* set up a new central message string table in main.c
* drop the old message string tables from man.c and mdoc.c
* get rid of the piece-meal merr enums in libman and libmdoc
* reduce number of error/warning functions from 16 to 6 (still a lot...)
While here, handle a few problems more gracefully:
* allow .Rv and .Ex to work without a prior .Nm
* allow .An to ignore extra arguments
* allow undeclared columns in .Bl -column
Written by kristaps@.
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/* $Id: man_argv.c,v 1.2 2010/05/23 22:45:00 schwarze Exp $ */
/*
* Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/types.h>
#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include "mandoc.h"
#include "libman.h"
int
man_args(struct man *m, int line, int *pos, char *buf, char **v)
{
assert(*pos);
assert(' ' != buf[*pos]);
if (0 == buf[*pos])
return(ARGS_EOLN);
*v = &buf[*pos];
/*
* Process a quoted literal. A quote begins with a double-quote
* and ends with a double-quote NOT preceded by a double-quote.
* Whitespace is NOT involved in literal termination.
*/
if ('\"' == buf[*pos]) {
*v = &buf[++(*pos)];
for ( ; buf[*pos]; (*pos)++) {
if ('\"' != buf[*pos])
continue;
if ('\"' != buf[*pos + 1])
break;
(*pos)++;
}
if (0 == buf[*pos]) {
if ( ! man_pmsg(m, line, *pos, MANDOCERR_BADQUOTE))
return(ARGS_ERROR);
return(ARGS_QWORD);
}
buf[(*pos)++] = 0;
if (0 == buf[*pos])
return(ARGS_QWORD);
while (' ' == buf[*pos])
(*pos)++;
if (0 == buf[*pos])
if ( ! man_pmsg(m, line, *pos, MANDOCERR_EOLNSPACE))
return(ARGS_ERROR);
return(ARGS_QWORD);
}
/*
* A non-quoted term progresses until either the end of line or
* a non-escaped whitespace.
*/
for ( ; buf[*pos]; (*pos)++)
if (' ' == buf[*pos] && '\\' != buf[*pos - 1])
break;
if (0 == buf[*pos])
return(ARGS_WORD);
buf[(*pos)++] = 0;
while (' ' == buf[*pos])
(*pos)++;
if (0 == buf[*pos])
if ( ! man_pmsg(m, line, *pos, MANDOCERR_EOLNSPACE))
return(ARGS_ERROR);
return(ARGS_WORD);
}