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Annotation of mandoc/eqn.c, Revision 1.1

1.1     ! kristaps    1: /*     $Id: tbl.c,v 1.22 2011/01/25 12:24:27 schwarze Exp $ */
        !             2: /*
        !             3:  * Copyright (c) 2011 Kristaps Dzonsons <kristaps@bsd.lv>
        !             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: #ifdef HAVE_CONFIG_H
        !            18: #include "config.h"
        !            19: #endif
        !            20:
        !            21: #include <assert.h>
        !            22: #include <stdio.h>
        !            23: #include <stdlib.h>
        !            24: #include <string.h>
        !            25: #include <time.h>
        !            26:
        !            27: #include "mandoc.h"
        !            28: #include "roff.h"
        !            29: #include "libmandoc.h"
        !            30: #include "libroff.h"
        !            31:
        !            32: /* ARGSUSED */
        !            33: enum rofferr
        !            34: eqn_read(struct eqn_node **epp, int ln, const char *p, int offs)
        !            35: {
        !            36:        size_t           sz;
        !            37:        struct eqn_node *ep;
        !            38:
        !            39:        if (0 == strcmp(p, ".EN")) {
        !            40:                *epp = NULL;
        !            41:                return(ROFF_EQN);
        !            42:        }
        !            43:
        !            44:        ep = *epp;
        !            45:
        !            46:        sz = strlen(&p[offs]);
        !            47:        ep->eqn.data = mandoc_realloc(ep->eqn.data, ep->eqn.sz + sz + 1);
        !            48:        if (0 == ep->eqn.sz)
        !            49:                *ep->eqn.data = '\0';
        !            50:
        !            51:        ep->eqn.sz += sz;
        !            52:        strlcat(ep->eqn.data, &p[offs], ep->eqn.sz + 1);
        !            53:        return(ROFF_IGN);
        !            54: }
        !            55:
        !            56: struct eqn_node *
        !            57: eqn_alloc(int pos, int line)
        !            58: {
        !            59:        struct eqn_node *p;
        !            60:
        !            61:        p = mandoc_calloc(1, sizeof(struct eqn_node));
        !            62:        p->line = line;
        !            63:        p->pos = pos;
        !            64:
        !            65:        return(p);
        !            66: }
        !            67:
        !            68: void
        !            69: eqn_end(struct eqn_node *e)
        !            70: {
        !            71:
        !            72:        /* Nothing to do. */
        !            73: }
        !            74:
        !            75: void
        !            76: eqn_free(struct eqn_node *p)
        !            77: {
        !            78:
        !            79:        free(p->eqn.data);
        !            80:        free(p);
        !            81: }