150 lines
3.4 KiB
C
150 lines
3.4 KiB
C
/* $Id: roff_validate.c,v 1.18 2018/12/31 09:02:37 schwarze Exp $ */
|
|
/*
|
|
* Copyright (c) 2010, 2017, 2018 Ingo Schwarze <schwarze@openbsd.org>
|
|
*
|
|
* 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 <stdio.h>
|
|
#include <string.h>
|
|
|
|
#include "mandoc.h"
|
|
#include "roff.h"
|
|
#include "libmandoc.h"
|
|
#include "roff_int.h"
|
|
|
|
#define ROFF_VALID_ARGS struct roff_man *man, struct roff_node *n
|
|
|
|
typedef void (*roff_valid_fp)(ROFF_VALID_ARGS);
|
|
|
|
static void roff_valid_br(ROFF_VALID_ARGS);
|
|
static void roff_valid_fi(ROFF_VALID_ARGS);
|
|
static void roff_valid_ft(ROFF_VALID_ARGS);
|
|
static void roff_valid_nf(ROFF_VALID_ARGS);
|
|
static void roff_valid_sp(ROFF_VALID_ARGS);
|
|
|
|
static const roff_valid_fp roff_valids[ROFF_MAX] = {
|
|
roff_valid_br, /* br */
|
|
NULL, /* ce */
|
|
roff_valid_fi, /* fi */
|
|
roff_valid_ft, /* ft */
|
|
NULL, /* ll */
|
|
NULL, /* mc */
|
|
roff_valid_nf, /* nf */
|
|
NULL, /* po */
|
|
NULL, /* rj */
|
|
roff_valid_sp, /* sp */
|
|
NULL, /* ta */
|
|
NULL, /* ti */
|
|
};
|
|
|
|
|
|
void
|
|
roff_validate(struct roff_man *man)
|
|
{
|
|
struct roff_node *n;
|
|
|
|
n = man->last;
|
|
assert(n->tok < ROFF_MAX);
|
|
if (roff_valids[n->tok] != NULL)
|
|
(*roff_valids[n->tok])(man, n);
|
|
}
|
|
|
|
static void
|
|
roff_valid_br(ROFF_VALID_ARGS)
|
|
{
|
|
struct roff_node *np;
|
|
|
|
if (n->next != NULL && n->next->type == ROFFT_TEXT &&
|
|
*n->next->string == ' ') {
|
|
mandoc_msg(MANDOCERR_PAR_SKIP, n->line, n->pos,
|
|
"br before text line with leading blank");
|
|
roff_node_delete(man, n);
|
|
return;
|
|
}
|
|
|
|
if ((np = n->prev) == NULL)
|
|
return;
|
|
|
|
switch (np->tok) {
|
|
case ROFF_br:
|
|
case ROFF_sp:
|
|
case MDOC_Pp:
|
|
mandoc_msg(MANDOCERR_PAR_SKIP,
|
|
n->line, n->pos, "br after %s", roff_name[np->tok]);
|
|
roff_node_delete(man, n);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
roff_valid_fi(ROFF_VALID_ARGS)
|
|
{
|
|
if ((n->flags & NODE_NOFILL) == 0)
|
|
mandoc_msg(MANDOCERR_FI_SKIP, n->line, n->pos, "fi");
|
|
}
|
|
|
|
static void
|
|
roff_valid_ft(ROFF_VALID_ARGS)
|
|
{
|
|
const char *cp;
|
|
|
|
if (n->child == NULL) {
|
|
man->next = ROFF_NEXT_CHILD;
|
|
roff_word_alloc(man, n->line, n->pos, "P");
|
|
man->last = n;
|
|
return;
|
|
}
|
|
|
|
cp = n->child->string;
|
|
if (mandoc_font(cp, (int)strlen(cp)) != ESCAPE_ERROR)
|
|
return;
|
|
mandoc_msg(MANDOCERR_FT_BAD, n->line, n->pos, "ft %s", cp);
|
|
roff_node_delete(man, n);
|
|
}
|
|
|
|
static void
|
|
roff_valid_nf(ROFF_VALID_ARGS)
|
|
{
|
|
if (n->flags & NODE_NOFILL)
|
|
mandoc_msg(MANDOCERR_NF_SKIP, n->line, n->pos, "nf");
|
|
}
|
|
|
|
static void
|
|
roff_valid_sp(ROFF_VALID_ARGS)
|
|
{
|
|
struct roff_node *np;
|
|
|
|
if ((np = n->prev) == NULL)
|
|
return;
|
|
|
|
switch (np->tok) {
|
|
case ROFF_br:
|
|
mandoc_msg(MANDOCERR_PAR_SKIP,
|
|
np->line, np->pos, "br before sp");
|
|
roff_node_delete(man, np);
|
|
break;
|
|
case MDOC_Pp:
|
|
mandoc_msg(MANDOCERR_PAR_SKIP,
|
|
n->line, n->pos, "sp after Pp");
|
|
roff_node_delete(man, n);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|