96 lines
2.1 KiB
C
96 lines
2.1 KiB
C
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/* $Id: roff_validate.c,v 1.7 2017/06/06 15:01:04 schwarze Exp $ */
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/*
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* Copyright (c) 2010, 2017 Ingo Schwarze <schwarze@openbsd.org>
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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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#include <sys/types.h>
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#include <assert.h>
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#include <stddef.h>
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#include "mandoc.h"
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#include "roff.h"
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#include "libmandoc.h"
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#include "roff_int.h"
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#define ROFF_VALID_ARGS struct roff_man *man, struct roff_node *n
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typedef void (*roff_valid_fp)(ROFF_VALID_ARGS);
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static void roff_valid_ft(ROFF_VALID_ARGS);
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static const roff_valid_fp roff_valids[ROFF_MAX] = {
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NULL, /* br */
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NULL, /* ce */
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roff_valid_ft, /* ft */
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NULL, /* ll */
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NULL, /* mc */
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NULL, /* sp */
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NULL, /* ta */
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NULL, /* ti */
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};
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void
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roff_validate(struct roff_man *man)
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{
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struct roff_node *n;
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n = man->last;
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assert(n->tok < ROFF_MAX);
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if (roff_valids[n->tok] != NULL)
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(*roff_valids[n->tok])(man, n);
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}
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static void
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roff_valid_ft(ROFF_VALID_ARGS)
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{
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char *cp;
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if (n->child == NULL) {
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man->next = ROFF_NEXT_CHILD;
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roff_word_alloc(man, n->line, n->pos, "P");
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man->last = n;
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return;
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}
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cp = n->child->string;
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switch (*cp) {
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case '1':
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case '2':
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case '3':
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case '4':
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case 'I':
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case 'P':
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case 'R':
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if (cp[1] == '\0')
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return;
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break;
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case 'B':
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if (cp[1] == '\0' || (cp[1] == 'I' && cp[2] == '\0'))
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return;
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break;
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case 'C':
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if (cp[1] == 'W' && cp[2] == '\0')
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return;
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break;
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default:
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break;
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}
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mandoc_vmsg(MANDOCERR_FT_BAD, man->parse,
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n->line, n->pos, "ft %s", cp);
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roff_node_delete(man, n);
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}
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