Annotation of mandoc/tbl_data.c, Revision 1.23
1.23 ! kristaps 1: /* $Id: tbl_data.c,v 1.22 2011/02/06 22:02:58 kristaps Exp $ */
1.1 kristaps 2: /*
1.20 schwarze 3: * Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
4: * Copyright (c) 2011 Ingo Schwarze <schwarze@openbsd.org>
1.1 kristaps 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: */
1.11 kristaps 18: #ifdef HAVE_CONFIG_H
19: #include "config.h"
20: #endif
21:
1.1 kristaps 22: #include <assert.h>
23: #include <ctype.h>
24: #include <stdlib.h>
25: #include <string.h>
1.6 kristaps 26: #include <time.h>
1.1 kristaps 27:
28: #include "mandoc.h"
29: #include "libmandoc.h"
30: #include "libroff.h"
31:
1.22 kristaps 32: static int data(struct tbl_node *, struct tbl_span *,
33: int, const char *, int *);
34: static struct tbl_span *newspan(struct tbl_node *, int,
35: struct tbl_row *);
1.1 kristaps 36:
1.11 kristaps 37: static int
1.8 kristaps 38: data(struct tbl_node *tbl, struct tbl_span *dp,
1.1 kristaps 39: int ln, const char *p, int *pos)
40: {
41: struct tbl_dat *dat;
1.3 kristaps 42: struct tbl_cell *cp;
1.16 kristaps 43: int sv, spans;
1.1 kristaps 44:
1.3 kristaps 45: cp = NULL;
46: if (dp->last && dp->last->layout)
47: cp = dp->last->layout->next;
48: else if (NULL == dp->last)
49: cp = dp->layout->first;
50:
1.12 kristaps 51: /*
52: * Skip over spanners and vertical lines to data formats, since
53: * we want to match data with data layout cells in the header.
54: */
1.3 kristaps 55:
56: while (cp && (TBL_CELL_VERT == cp->pos ||
1.12 kristaps 57: TBL_CELL_DVERT == cp->pos ||
58: TBL_CELL_SPAN == cp->pos))
1.3 kristaps 59: cp = cp->next;
60:
1.16 kristaps 61: /*
62: * Stop processing when we reach the end of the available layout
63: * cells. This means that we have extra input.
64: */
65:
66: if (NULL == cp) {
67: TBL_MSG(tbl, MANDOCERR_TBLEXTRADAT, ln, *pos);
68: /* Skip to the end... */
69: while (p[*pos])
70: (*pos)++;
71: return(1);
72: }
73:
1.1 kristaps 74: dat = mandoc_calloc(1, sizeof(struct tbl_dat));
1.3 kristaps 75: dat->layout = cp;
1.11 kristaps 76: dat->pos = TBL_DATA_NONE;
1.7 kristaps 77:
1.16 kristaps 78: assert(TBL_CELL_SPAN != cp->pos);
79:
80: for (spans = 0, cp = cp->next; cp; cp = cp->next)
81: if (TBL_CELL_SPAN == cp->pos)
82: spans++;
83: else
84: break;
85:
86: dat->spans = spans;
1.1 kristaps 87:
88: if (dp->last) {
89: dp->last->next = dat;
90: dp->last = dat;
91: } else
92: dp->last = dp->first = dat;
93:
94: sv = *pos;
1.8 kristaps 95: while (p[*pos] && p[*pos] != tbl->opts.tab)
1.1 kristaps 96: (*pos)++;
97:
1.11 kristaps 98: /*
99: * Check for a continued-data scope opening. This consists of a
100: * trailing `T{' at the end of the line. Subsequent lines,
101: * until a standalone `T}', are included in our cell.
102: */
103:
104: if (*pos - sv == 2 && 'T' == p[sv] && '{' == p[sv + 1]) {
105: tbl->part = TBL_PART_CDATA;
106: return(0);
107: }
108:
1.23 ! kristaps 109: assert(*pos - sv >= 0);
! 110:
! 111: dat->string = mandoc_malloc((size_t)(*pos - sv + 1));
! 112: memcpy(dat->string, &p[sv], (size_t)(*pos - sv));
1.1 kristaps 113: dat->string[*pos - sv] = '\0';
114:
115: if (p[*pos])
116: (*pos)++;
117:
118: if ( ! strcmp(dat->string, "_"))
1.5 kristaps 119: dat->pos = TBL_DATA_HORIZ;
1.1 kristaps 120: else if ( ! strcmp(dat->string, "="))
1.5 kristaps 121: dat->pos = TBL_DATA_DHORIZ;
1.1 kristaps 122: else if ( ! strcmp(dat->string, "\\_"))
1.5 kristaps 123: dat->pos = TBL_DATA_NHORIZ;
1.1 kristaps 124: else if ( ! strcmp(dat->string, "\\="))
1.5 kristaps 125: dat->pos = TBL_DATA_NDHORIZ;
126: else
127: dat->pos = TBL_DATA_DATA;
1.11 kristaps 128:
1.10 kristaps 129: if (TBL_CELL_HORIZ == dat->layout->pos ||
1.19 kristaps 130: TBL_CELL_DHORIZ == dat->layout->pos ||
131: TBL_CELL_DOWN == dat->layout->pos)
1.10 kristaps 132: if (TBL_DATA_DATA == dat->pos && '\0' != *dat->string)
133: TBL_MSG(tbl, MANDOCERR_TBLIGNDATA, ln, sv);
1.11 kristaps 134:
135: return(1);
136: }
137:
1.13 kristaps 138: /* ARGSUSED */
1.11 kristaps 139: int
140: tbl_cdata(struct tbl_node *tbl, int ln, const char *p)
141: {
142: struct tbl_dat *dat;
143: size_t sz;
1.14 kristaps 144: int pos;
1.11 kristaps 145:
1.14 kristaps 146: pos = 0;
1.11 kristaps 147:
148: dat = tbl->last_span->last;
1.14 kristaps 149:
150: if (p[pos] == 'T' && p[pos + 1] == '}') {
151: pos += 2;
152: if (p[pos] == tbl->opts.tab) {
153: tbl->part = TBL_PART_DATA;
154: pos++;
155: return(data(tbl, tbl->last_span, ln, p, &pos));
156: } else if ('\0' == p[pos]) {
157: tbl->part = TBL_PART_DATA;
158: return(1);
159: }
160:
161: /* Fallthrough: T} is part of a word. */
162: }
1.17 kristaps 163:
164: dat->pos = TBL_DATA_DATA;
1.11 kristaps 165:
166: if (dat->string) {
167: sz = strlen(p) + strlen(dat->string) + 2;
168: dat->string = mandoc_realloc(dat->string, sz);
169: strlcat(dat->string, " ", sz);
170: strlcat(dat->string, p, sz);
171: } else
172: dat->string = mandoc_strdup(p);
1.19 kristaps 173:
174: if (TBL_CELL_DOWN == dat->layout->pos)
175: TBL_MSG(tbl, MANDOCERR_TBLIGNDATA, ln, pos);
1.11 kristaps 176:
177: return(0);
1.1 kristaps 178: }
179:
1.20 schwarze 180: static struct tbl_span *
1.22 kristaps 181: newspan(struct tbl_node *tbl, int line, struct tbl_row *rp)
1.20 schwarze 182: {
183: struct tbl_span *dp;
184:
185: dp = mandoc_calloc(1, sizeof(struct tbl_span));
1.22 kristaps 186: dp->line = line;
1.20 schwarze 187: dp->tbl = &tbl->opts;
188: dp->layout = rp;
189: dp->head = tbl->first_head;
190:
191: if (tbl->last_span) {
192: tbl->last_span->next = dp;
193: tbl->last_span = dp;
194: } else {
195: tbl->last_span = tbl->first_span = dp;
1.21 schwarze 196: tbl->current_span = NULL;
1.20 schwarze 197: dp->flags |= TBL_SPAN_FIRST;
198: }
199:
200: return(dp);
201: }
202:
1.2 kristaps 203: int
1.8 kristaps 204: tbl_data(struct tbl_node *tbl, int ln, const char *p)
1.1 kristaps 205: {
206: struct tbl_span *dp;
1.3 kristaps 207: struct tbl_row *rp;
1.1 kristaps 208: int pos;
209:
210: pos = 0;
211:
212: if ('\0' == p[pos]) {
213: TBL_MSG(tbl, MANDOCERR_TBL, ln, pos);
1.4 kristaps 214: return(0);
1.1 kristaps 215: }
216:
1.3 kristaps 217: /*
218: * Choose a layout row: take the one following the last parsed
219: * span's. If that doesn't exist, use the last parsed span's.
1.15 kristaps 220: * If there's no last parsed span, use the first row. Lastly,
221: * if the last span was a horizontal line, use the same layout
222: * (it doesn't "consume" the layout).
1.3 kristaps 223: */
224:
225: if (tbl->last_span) {
226: assert(tbl->last_span->layout);
1.20 schwarze 227: if (tbl->last_span->pos == TBL_SPAN_DATA) {
228: for (rp = tbl->last_span->layout->next;
229: rp && rp->first; rp = rp->next) {
230: switch (rp->first->pos) {
231: case (TBL_CELL_HORIZ):
1.22 kristaps 232: dp = newspan(tbl, ln, rp);
1.20 schwarze 233: dp->pos = TBL_SPAN_HORIZ;
234: continue;
235: case (TBL_CELL_DHORIZ):
1.22 kristaps 236: dp = newspan(tbl, ln, rp);
1.20 schwarze 237: dp->pos = TBL_SPAN_DHORIZ;
238: continue;
239: default:
240: break;
241: }
242: break;
243: }
244: } else
1.15 kristaps 245: rp = tbl->last_span->layout;
1.18 kristaps 246:
1.3 kristaps 247: if (NULL == rp)
248: rp = tbl->last_span->layout;
249: } else
250: rp = tbl->first_row;
1.18 kristaps 251:
252: assert(rp);
1.3 kristaps 253:
1.22 kristaps 254: dp = newspan(tbl, ln, rp);
1.2 kristaps 255:
1.1 kristaps 256: if ( ! strcmp(p, "_")) {
1.5 kristaps 257: dp->pos = TBL_SPAN_HORIZ;
1.2 kristaps 258: return(1);
1.1 kristaps 259: } else if ( ! strcmp(p, "=")) {
1.5 kristaps 260: dp->pos = TBL_SPAN_DHORIZ;
1.2 kristaps 261: return(1);
1.1 kristaps 262: }
1.5 kristaps 263:
264: dp->pos = TBL_SPAN_DATA;
1.1 kristaps 265:
1.11 kristaps 266: /* This returns 0 when TBL_PART_CDATA is entered. */
267:
1.1 kristaps 268: while ('\0' != p[pos])
1.11 kristaps 269: if ( ! data(tbl, dp, ln, p, &pos))
270: return(0);
1.1 kristaps 271:
1.2 kristaps 272: return(1);
1.1 kristaps 273: }
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