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Annotation of mandoc/roff_validate.c, Revision 1.10

1.10    ! schwarze    1: /*     $Id: roff_validate.c,v 1.9 2017/06/14 22:51:25 schwarze Exp $ */
1.1       schwarze    2: /*
1.10    ! schwarze    3:  * Copyright (c) 2010, 2017, 2018 Ingo Schwarze <schwarze@openbsd.org>
1.1       schwarze    4:  *
                      5:  * Permission to use, copy, modify, and distribute this software for any
                      6:  * purpose with or without fee is hereby granted, provided that the above
                      7:  * copyright notice and this permission notice appear in all copies.
                      8:  *
                      9:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
                     10:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
                     11:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
                     12:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
                     13:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
                     14:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
                     15:  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
                     16:  */
                     17: #include <sys/types.h>
                     18:
                     19: #include <assert.h>
                     20: #include <stddef.h>
1.10    ! schwarze   21: #include <string.h>
1.1       schwarze   22:
                     23: #include "mandoc.h"
                     24: #include "roff.h"
                     25: #include "libmandoc.h"
                     26: #include "roff_int.h"
                     27:
                     28: #define        ROFF_VALID_ARGS struct roff_man *man, struct roff_node *n
                     29:
                     30: typedef        void    (*roff_valid_fp)(ROFF_VALID_ARGS);
                     31:
                     32: static void      roff_valid_ft(ROFF_VALID_ARGS);
                     33:
                     34: static const roff_valid_fp roff_valids[ROFF_MAX] = {
                     35:        NULL,  /* br */
1.7       schwarze   36:        NULL,  /* ce */
1.1       schwarze   37:        roff_valid_ft,  /* ft */
1.2       schwarze   38:        NULL,  /* ll */
1.6       schwarze   39:        NULL,  /* mc */
1.9       schwarze   40:        NULL,  /* po */
1.8       schwarze   41:        NULL,  /* rj */
1.3       schwarze   42:        NULL,  /* sp */
1.4       schwarze   43:        NULL,  /* ta */
1.5       schwarze   44:        NULL,  /* ti */
1.1       schwarze   45: };
                     46:
                     47:
                     48: void
                     49: roff_validate(struct roff_man *man)
                     50: {
                     51:        struct roff_node        *n;
                     52:
                     53:        n = man->last;
                     54:        assert(n->tok < ROFF_MAX);
                     55:        if (roff_valids[n->tok] != NULL)
                     56:                (*roff_valids[n->tok])(man, n);
                     57: }
                     58:
                     59: static void
                     60: roff_valid_ft(ROFF_VALID_ARGS)
                     61: {
1.10    ! schwarze   62:        const char              *cp;
1.1       schwarze   63:
                     64:        if (n->child == NULL) {
                     65:                man->next = ROFF_NEXT_CHILD;
                     66:                roff_word_alloc(man, n->line, n->pos, "P");
                     67:                man->last = n;
                     68:                return;
                     69:        }
                     70:
                     71:        cp = n->child->string;
                     72:        switch (*cp) {
                     73:        case '1':
                     74:        case '2':
                     75:        case '3':
                     76:        case '4':
                     77:        case 'I':
                     78:        case 'P':
                     79:        case 'R':
                     80:                if (cp[1] == '\0')
                     81:                        return;
                     82:                break;
                     83:        case 'B':
                     84:                if (cp[1] == '\0' || (cp[1] == 'I' && cp[2] == '\0'))
                     85:                        return;
                     86:                break;
                     87:        case 'C':
1.10    ! schwarze   88:                if (cp[1] != '\0' && cp[2] == '\0' &&
        !            89:                    strchr("BIRW", cp[1]) != NULL)
1.1       schwarze   90:                        return;
                     91:                break;
                     92:        default:
                     93:                break;
                     94:        }
                     95:
                     96:        mandoc_vmsg(MANDOCERR_FT_BAD, man->parse,
                     97:            n->line, n->pos, "ft %s", cp);
                     98:        roff_node_delete(man, n);
                     99: }