Annotation of src/usr.bin/mandoc/tbl.c, Revision 1.5
1.5 ! schwarze 1: /* $Id: tbl.c,v 1.4 2011/01/04 22:28:17 schwarze Exp $ */
1.1 schwarze 2: /*
1.4 schwarze 3: * Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.5 ! schwarze 4: * Copyright (c) 2011 Ingo Schwarze <schwarze@openbsd.org>
1.1 schwarze 5: *
6: * Permission to use, copy, modify, and distribute this software for any
7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
9: *
10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17: */
18: #include <assert.h>
19: #include <stdio.h>
20: #include <stdlib.h>
21: #include <string.h>
1.4 schwarze 22: #include <time.h>
1.1 schwarze 23:
1.4 schwarze 24: #include "mandoc.h"
25: #include "roff.h"
26: #include "libmandoc.h"
27: #include "libroff.h"
1.1 schwarze 28:
1.4 schwarze 29: enum rofferr
30: tbl_read(struct tbl_node *tbl, int ln, const char *p, int offs)
1.1 schwarze 31: {
1.4 schwarze 32: int len;
33: const char *cp;
1.1 schwarze 34:
1.4 schwarze 35: cp = &p[offs];
36: len = (int)strlen(cp);
1.1 schwarze 37:
1.4 schwarze 38: /*
39: * If we're in the options section and we don't have a
40: * terminating semicolon, assume we've moved directly into the
41: * layout section. No need to report a warning: this is,
42: * apparently, standard behaviour.
43: */
1.1 schwarze 44:
1.4 schwarze 45: if (TBL_PART_OPTS == tbl->part && len)
46: if (';' != cp[len - 1])
47: tbl->part = TBL_PART_LAYOUT;
1.1 schwarze 48:
1.4 schwarze 49: /* Now process each logical section of the table. */
1.1 schwarze 50:
51: switch (tbl->part) {
52: case (TBL_PART_OPTS):
1.4 schwarze 53: return(tbl_option(tbl, ln, p) ? ROFF_IGN : ROFF_ERR);
1.1 schwarze 54: case (TBL_PART_LAYOUT):
1.4 schwarze 55: return(tbl_layout(tbl, ln, p) ? ROFF_IGN : ROFF_ERR);
56: case (TBL_PART_CDATA):
57: return(tbl_cdata(tbl, ln, p) ? ROFF_TBL : ROFF_IGN);
1.1 schwarze 58: default:
59: break;
60: }
61:
62: /*
1.4 schwarze 63: * This only returns zero if the line is empty, so we ignore it
64: * and continue on.
1.1 schwarze 65: */
1.4 schwarze 66: return(tbl_data(tbl, ln, p) ? ROFF_TBL : ROFF_IGN);
1.1 schwarze 67: }
68:
1.4 schwarze 69: struct tbl_node *
70: tbl_alloc(int pos, int line, void *data, const mandocmsg msg)
1.1 schwarze 71: {
1.4 schwarze 72: struct tbl_node *p;
1.1 schwarze 73:
1.4 schwarze 74: p = mandoc_calloc(1, sizeof(struct tbl_node));
75: p->line = line;
76: p->pos = pos;
77: p->data = data;
78: p->msg = msg;
79: p->part = TBL_PART_OPTS;
80: p->opts.tab = '\t';
81: p->opts.linesize = 12;
82: p->opts.decimal = '.';
1.1 schwarze 83: return(p);
84: }
85:
86: void
1.4 schwarze 87: tbl_free(struct tbl_node *p)
1.1 schwarze 88: {
1.4 schwarze 89: struct tbl_row *rp;
90: struct tbl_cell *cp;
91: struct tbl_span *sp;
92: struct tbl_dat *dp;
93: struct tbl_head *hp;
94:
95: while (NULL != (rp = p->first_row)) {
96: p->first_row = rp->next;
97: while (rp->first) {
98: cp = rp->first;
99: rp->first = cp->next;
100: free(cp);
101: }
102: free(rp);
1.1 schwarze 103: }
104:
1.4 schwarze 105: while (NULL != (sp = p->first_span)) {
106: p->first_span = sp->next;
107: while (sp->first) {
108: dp = sp->first;
109: sp->first = dp->next;
110: if (dp->string)
111: free(dp->string);
112: free(dp);
113: }
114: free(sp);
1.1 schwarze 115: }
116:
1.4 schwarze 117: while (NULL != (hp = p->first_head)) {
118: p->first_head = hp->next;
119: free(hp);
1.1 schwarze 120: }
121:
1.4 schwarze 122: free(p);
1.1 schwarze 123: }
124:
1.4 schwarze 125: void
126: tbl_restart(int line, int pos, struct tbl_node *tbl)
1.1 schwarze 127: {
1.4 schwarze 128: if (TBL_PART_CDATA == tbl->part)
129: TBL_MSG(tbl, MANDOCERR_TBLBLOCK, tbl->line, tbl->pos);
1.1 schwarze 130:
1.4 schwarze 131: tbl->part = TBL_PART_LAYOUT;
132: tbl->line = line;
133: tbl->pos = pos;
1.1 schwarze 134:
1.4 schwarze 135: if (NULL == tbl->first_span || NULL == tbl->first_span->first)
136: TBL_MSG(tbl, MANDOCERR_TBLNODATA, tbl->line, tbl->pos);
1.1 schwarze 137: }
138:
1.4 schwarze 139: const struct tbl_span *
1.5 ! schwarze 140: tbl_span(struct tbl_node *tbl)
1.1 schwarze 141: {
1.5 ! schwarze 142: struct tbl_span *span;
1.1 schwarze 143:
1.4 schwarze 144: assert(tbl);
1.5 ! schwarze 145: span = tbl->current_span ? tbl->current_span->next
! 146: : tbl->first_span;
! 147: if (span)
! 148: tbl->current_span = span;
! 149: return(span);
1.1 schwarze 150: }
151:
1.4 schwarze 152: void
153: tbl_end(struct tbl_node *tbl)
1.1 schwarze 154: {
155:
1.4 schwarze 156: if (NULL == tbl->first_span || NULL == tbl->first_span->first)
157: TBL_MSG(tbl, MANDOCERR_TBLNODATA, tbl->line, tbl->pos);
1.1 schwarze 158:
1.4 schwarze 159: if (tbl->last_span)
160: tbl->last_span->flags |= TBL_SPAN_LAST;
1.1 schwarze 161:
1.4 schwarze 162: if (TBL_PART_CDATA == tbl->part)
163: TBL_MSG(tbl, MANDOCERR_TBLBLOCK, tbl->line, tbl->pos);
1.1 schwarze 164: }
165:
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