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/* $Id$ */
/*
* 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 <stddef.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_ft(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_ft, /* ft */
NULL, /* ll */
NULL, /* mc */
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->child != NULL)
mandoc_vmsg(MANDOCERR_ARG_SKIP, man->parse,
n->line, n->pos, "br %s", n->child->string);
if ((np = n->prev) == NULL)
return;
switch (np->tok) {
case ROFF_br:
case ROFF_sp:
case MDOC_Pp:
mandoc_vmsg(MANDOCERR_PAR_SKIP, man->parse,
n->line, n->pos, "br after %s", roff_name[np->tok]);
roff_node_delete(man, n);
break;
default:
break;
}
}
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;
switch (*cp) {
case '1':
case '2':
case '3':
case '4':
case 'I':
case 'P':
case 'R':
if (cp[1] == '\0')
return;
break;
case 'B':
if (cp[1] == '\0' || (cp[1] == 'I' && cp[2] == '\0'))
return;
break;
case 'C':
if (cp[1] != '\0' && cp[2] == '\0' &&
strchr("BIRW", cp[1]) != NULL)
return;
break;
default:
break;
}
mandoc_vmsg(MANDOCERR_FT_BAD, man->parse,
n->line, n->pos, "ft %s", cp);
roff_node_delete(man, n);
}
static void
roff_valid_sp(ROFF_VALID_ARGS)
{
struct roff_node *np;
if (n->child != NULL && n->child->next != NULL)
mandoc_vmsg(MANDOCERR_ARG_EXCESS, man->parse,
n->child->next->line, n->child->next->pos,
"sp ... %s", n->child->next->string);
if ((np = n->prev) == NULL)
return;
switch (np->tok) {
case ROFF_br:
mandoc_msg(MANDOCERR_PAR_SKIP, man->parse,
np->line, np->pos, "br before sp");
roff_node_delete(man, np);
break;
case MDOC_Pp:
mandoc_msg(MANDOCERR_PAR_SKIP, man->parse,
n->line, n->pos, "sp after Pp");
roff_node_delete(man, n);
break;
default:
break;
}
}
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