Annotation of mandoc/eqn.c, Revision 1.3
1.3 ! kristaps 1: /* $Id: eqn.c,v 1.2 2011/02/09 09:05:52 kristaps Exp $ */
1.1 kristaps 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));
1.2 kristaps 62: p->eqn.line = line;
63: p->eqn.pos = pos;
1.1 kristaps 64:
65: return(p);
66: }
67:
1.3 ! kristaps 68: /* ARGSUSED */
1.1 kristaps 69: void
70: eqn_end(struct eqn_node *e)
71: {
72:
73: /* Nothing to do. */
74: }
75:
76: void
77: eqn_free(struct eqn_node *p)
78: {
79:
80: free(p->eqn.data);
81: free(p);
82: }
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