Annotation of mandoc/tbl_data.c, Revision 1.15
1.15 ! kristaps 1: /* $Id: tbl_data.c,v 1.14 2011/01/07 14:59:52 kristaps Exp $ */
1.1 kristaps 2: /*
3: * Copyright (c) 2009, 2010 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: */
1.11 kristaps 17: #ifdef HAVE_CONFIG_H
18: #include "config.h"
19: #endif
20:
1.1 kristaps 21: #include <assert.h>
22: #include <ctype.h>
23: #include <stdlib.h>
24: #include <string.h>
1.6 kristaps 25: #include <time.h>
1.1 kristaps 26:
27: #include "mandoc.h"
28: #include "libmandoc.h"
29: #include "libroff.h"
30:
1.11 kristaps 31: static int data(struct tbl_node *, struct tbl_span *,
1.1 kristaps 32: int, const char *, int *);
33:
1.11 kristaps 34: static int
1.8 kristaps 35: data(struct tbl_node *tbl, struct tbl_span *dp,
1.1 kristaps 36: int ln, const char *p, int *pos)
37: {
38: struct tbl_dat *dat;
1.3 kristaps 39: struct tbl_cell *cp;
1.1 kristaps 40: int sv;
41:
1.3 kristaps 42: cp = NULL;
43: if (dp->last && dp->last->layout)
44: cp = dp->last->layout->next;
45: else if (NULL == dp->last)
46: cp = dp->layout->first;
47:
1.12 kristaps 48: /*
49: * Skip over spanners and vertical lines to data formats, since
50: * we want to match data with data layout cells in the header.
51: */
1.3 kristaps 52:
53: while (cp && (TBL_CELL_VERT == cp->pos ||
1.12 kristaps 54: TBL_CELL_DVERT == cp->pos ||
55: TBL_CELL_SPAN == cp->pos))
1.3 kristaps 56: cp = cp->next;
57:
1.1 kristaps 58: dat = mandoc_calloc(1, sizeof(struct tbl_dat));
1.3 kristaps 59: dat->layout = cp;
1.11 kristaps 60: dat->pos = TBL_DATA_NONE;
1.7 kristaps 61:
62: if (NULL == dat->layout)
63: TBL_MSG(tbl, MANDOCERR_TBLEXTRADAT, ln, *pos);
1.1 kristaps 64:
65: if (dp->last) {
66: dp->last->next = dat;
67: dp->last = dat;
68: } else
69: dp->last = dp->first = dat;
70:
71: sv = *pos;
1.8 kristaps 72: while (p[*pos] && p[*pos] != tbl->opts.tab)
1.1 kristaps 73: (*pos)++;
74:
1.11 kristaps 75: /*
76: * Check for a continued-data scope opening. This consists of a
77: * trailing `T{' at the end of the line. Subsequent lines,
78: * until a standalone `T}', are included in our cell.
79: */
80:
81: if (*pos - sv == 2 && 'T' == p[sv] && '{' == p[sv + 1]) {
82: tbl->part = TBL_PART_CDATA;
83: return(0);
84: }
85:
1.1 kristaps 86: dat->string = mandoc_malloc(*pos - sv + 1);
87: memcpy(dat->string, &p[sv], *pos - sv);
88: dat->string[*pos - sv] = '\0';
89:
90: if (p[*pos])
91: (*pos)++;
92:
93: if ( ! strcmp(dat->string, "_"))
1.5 kristaps 94: dat->pos = TBL_DATA_HORIZ;
1.1 kristaps 95: else if ( ! strcmp(dat->string, "="))
1.5 kristaps 96: dat->pos = TBL_DATA_DHORIZ;
1.1 kristaps 97: else if ( ! strcmp(dat->string, "\\_"))
1.5 kristaps 98: dat->pos = TBL_DATA_NHORIZ;
1.1 kristaps 99: else if ( ! strcmp(dat->string, "\\="))
1.5 kristaps 100: dat->pos = TBL_DATA_NDHORIZ;
101: else
102: dat->pos = TBL_DATA_DATA;
1.10 kristaps 103:
1.11 kristaps 104: if (NULL == dat->layout)
105: return(1);
106:
1.10 kristaps 107: if (TBL_CELL_HORIZ == dat->layout->pos ||
108: TBL_CELL_DHORIZ == dat->layout->pos)
109: if (TBL_DATA_DATA == dat->pos && '\0' != *dat->string)
110: TBL_MSG(tbl, MANDOCERR_TBLIGNDATA, ln, sv);
1.11 kristaps 111:
112: return(1);
113: }
114:
1.13 kristaps 115: /* ARGSUSED */
1.11 kristaps 116: int
117: tbl_cdata(struct tbl_node *tbl, int ln, const char *p)
118: {
119: struct tbl_dat *dat;
120: size_t sz;
1.14 kristaps 121: int pos;
1.11 kristaps 122:
1.14 kristaps 123: pos = 0;
1.11 kristaps 124:
125: dat = tbl->last_span->last;
126: dat->pos = TBL_DATA_DATA;
1.14 kristaps 127:
128: if (p[pos] == 'T' && p[pos + 1] == '}') {
129: pos += 2;
130: if (p[pos] == tbl->opts.tab) {
131: tbl->part = TBL_PART_DATA;
132: pos++;
133: return(data(tbl, tbl->last_span, ln, p, &pos));
134: } else if ('\0' == p[pos]) {
135: tbl->part = TBL_PART_DATA;
136: return(1);
137: }
138:
139: /* Fallthrough: T} is part of a word. */
140: }
1.11 kristaps 141:
142: if (dat->string) {
143: sz = strlen(p) + strlen(dat->string) + 2;
144: dat->string = mandoc_realloc(dat->string, sz);
145: strlcat(dat->string, " ", sz);
146: strlcat(dat->string, p, sz);
147: } else
148: dat->string = mandoc_strdup(p);
149:
150: return(0);
1.1 kristaps 151: }
152:
1.2 kristaps 153: int
1.8 kristaps 154: tbl_data(struct tbl_node *tbl, int ln, const char *p)
1.1 kristaps 155: {
156: struct tbl_span *dp;
1.3 kristaps 157: struct tbl_row *rp;
1.1 kristaps 158: int pos;
159:
160: pos = 0;
161:
162: if ('\0' == p[pos]) {
163: TBL_MSG(tbl, MANDOCERR_TBL, ln, pos);
1.4 kristaps 164: return(0);
1.1 kristaps 165: }
166:
1.3 kristaps 167: /*
168: * Choose a layout row: take the one following the last parsed
169: * span's. If that doesn't exist, use the last parsed span's.
1.15 ! kristaps 170: * If there's no last parsed span, use the first row. Lastly,
! 171: * if the last span was a horizontal line, use the same layout
! 172: * (it doesn't "consume" the layout).
! 173: *
! 174: * In the end, this can be NULL!
1.3 kristaps 175: */
176:
177: if (tbl->last_span) {
178: assert(tbl->last_span->layout);
1.15 ! kristaps 179: if (tbl->last_span->pos == TBL_SPAN_DATA)
! 180: rp = tbl->last_span->layout->next;
! 181: else
! 182: rp = tbl->last_span->layout;
1.3 kristaps 183: if (NULL == rp)
184: rp = tbl->last_span->layout;
185: } else
186: rp = tbl->first_row;
187:
1.1 kristaps 188: dp = mandoc_calloc(1, sizeof(struct tbl_span));
1.9 kristaps 189: dp->tbl = &tbl->opts;
1.3 kristaps 190: dp->layout = rp;
1.9 kristaps 191: dp->head = tbl->first_head;
1.1 kristaps 192:
1.2 kristaps 193: if (tbl->last_span) {
194: tbl->last_span->next = dp;
195: tbl->last_span = dp;
1.9 kristaps 196: } else {
1.2 kristaps 197: tbl->last_span = tbl->first_span = dp;
1.9 kristaps 198: dp->flags |= TBL_SPAN_FIRST;
199: }
1.2 kristaps 200:
1.1 kristaps 201: if ( ! strcmp(p, "_")) {
1.5 kristaps 202: dp->pos = TBL_SPAN_HORIZ;
1.2 kristaps 203: return(1);
1.1 kristaps 204: } else if ( ! strcmp(p, "=")) {
1.5 kristaps 205: dp->pos = TBL_SPAN_DHORIZ;
1.2 kristaps 206: return(1);
1.1 kristaps 207: }
1.5 kristaps 208:
209: dp->pos = TBL_SPAN_DATA;
1.1 kristaps 210:
1.11 kristaps 211: /* This returns 0 when TBL_PART_CDATA is entered. */
212:
1.1 kristaps 213: while ('\0' != p[pos])
1.11 kristaps 214: if ( ! data(tbl, dp, ln, p, &pos))
215: return(0);
1.1 kristaps 216:
1.2 kristaps 217: return(1);
1.1 kristaps 218: }
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