Annotation of mandoc/tbl_data.c, Revision 1.34
1.34 ! schwarze 1: /* $Id: tbl_data.c,v 1.33 2015/01/21 00:47:04 schwarze Exp $ */
1.1 kristaps 2: /*
1.20 schwarze 3: * Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.34 ! schwarze 4: * Copyright (c) 2011, 2015 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: #include "config.h"
1.32 schwarze 19:
20: #include <sys/types.h>
1.11 kristaps 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"
1.29 schwarze 29: #include "mandoc_aux.h"
1.1 kristaps 30: #include "libmandoc.h"
31: #include "libroff.h"
32:
1.33 schwarze 33: static void getdata(struct tbl_node *, struct tbl_span *,
1.22 kristaps 34: int, const char *, int *);
1.30 schwarze 35: static struct tbl_span *newspan(struct tbl_node *, int,
1.22 kristaps 36: struct tbl_row *);
1.1 kristaps 37:
1.30 schwarze 38:
1.33 schwarze 39: static void
1.30 schwarze 40: getdata(struct tbl_node *tbl, struct tbl_span *dp,
1.1 kristaps 41: int ln, const char *p, int *pos)
42: {
43: struct tbl_dat *dat;
1.3 kristaps 44: struct tbl_cell *cp;
1.16 kristaps 45: int sv, spans;
1.1 kristaps 46:
1.3 kristaps 47: cp = NULL;
48: if (dp->last && dp->last->layout)
49: cp = dp->last->layout->next;
50: else if (NULL == dp->last)
51: cp = dp->layout->first;
52:
1.30 schwarze 53: /*
1.25 schwarze 54: * Skip over spanners, since
1.12 kristaps 55: * we want to match data with data layout cells in the header.
56: */
1.3 kristaps 57:
1.25 schwarze 58: while (cp && 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) {
1.30 schwarze 67: mandoc_msg(MANDOCERR_TBLEXTRADAT, tbl->parse,
68: ln, *pos, NULL);
1.16 kristaps 69: /* Skip to the end... */
70: while (p[*pos])
71: (*pos)++;
1.33 schwarze 72: return;
1.16 kristaps 73: }
74:
1.1 kristaps 75: dat = mandoc_calloc(1, sizeof(struct tbl_dat));
1.3 kristaps 76: dat->layout = cp;
1.11 kristaps 77: dat->pos = TBL_DATA_NONE;
1.7 kristaps 78:
1.16 kristaps 79: assert(TBL_CELL_SPAN != cp->pos);
80:
81: for (spans = 0, cp = cp->next; cp; cp = cp->next)
82: if (TBL_CELL_SPAN == cp->pos)
83: spans++;
84: else
85: break;
1.30 schwarze 86:
1.16 kristaps 87: dat->spans = spans;
1.1 kristaps 88:
89: if (dp->last) {
90: dp->last->next = dat;
91: dp->last = dat;
92: } else
93: dp->last = dp->first = dat;
94:
95: sv = *pos;
1.8 kristaps 96: while (p[*pos] && p[*pos] != tbl->opts.tab)
1.1 kristaps 97: (*pos)++;
98:
1.11 kristaps 99: /*
100: * Check for a continued-data scope opening. This consists of a
101: * trailing `T{' at the end of the line. Subsequent lines,
102: * until a standalone `T}', are included in our cell.
103: */
104:
105: if (*pos - sv == 2 && 'T' == p[sv] && '{' == p[sv + 1]) {
106: tbl->part = TBL_PART_CDATA;
1.33 schwarze 107: return;
1.11 kristaps 108: }
109:
1.23 kristaps 110: assert(*pos - sv >= 0);
111:
112: dat->string = mandoc_malloc((size_t)(*pos - sv + 1));
113: memcpy(dat->string, &p[sv], (size_t)(*pos - sv));
1.1 kristaps 114: dat->string[*pos - sv] = '\0';
115:
116: if (p[*pos])
117: (*pos)++;
118:
119: if ( ! strcmp(dat->string, "_"))
1.5 kristaps 120: dat->pos = TBL_DATA_HORIZ;
1.1 kristaps 121: else if ( ! strcmp(dat->string, "="))
1.5 kristaps 122: dat->pos = TBL_DATA_DHORIZ;
1.1 kristaps 123: else if ( ! strcmp(dat->string, "\\_"))
1.5 kristaps 124: dat->pos = TBL_DATA_NHORIZ;
1.1 kristaps 125: else if ( ! strcmp(dat->string, "\\="))
1.5 kristaps 126: dat->pos = TBL_DATA_NDHORIZ;
127: else
128: dat->pos = TBL_DATA_DATA;
1.11 kristaps 129:
1.10 kristaps 130: if (TBL_CELL_HORIZ == dat->layout->pos ||
1.30 schwarze 131: TBL_CELL_DHORIZ == dat->layout->pos ||
132: TBL_CELL_DOWN == dat->layout->pos)
1.10 kristaps 133: if (TBL_DATA_DATA == dat->pos && '\0' != *dat->string)
1.30 schwarze 134: mandoc_msg(MANDOCERR_TBLIGNDATA,
135: tbl->parse, ln, sv, NULL);
1.11 kristaps 136:
1.33 schwarze 137: return;
1.11 kristaps 138: }
139:
140: int
141: tbl_cdata(struct tbl_node *tbl, int ln, const char *p)
142: {
143: struct tbl_dat *dat;
1.30 schwarze 144: size_t sz;
1.14 kristaps 145: int pos;
1.11 kristaps 146:
1.14 kristaps 147: pos = 0;
1.11 kristaps 148:
149: dat = tbl->last_span->last;
1.14 kristaps 150:
151: if (p[pos] == 'T' && p[pos + 1] == '}') {
152: pos += 2;
153: if (p[pos] == tbl->opts.tab) {
154: tbl->part = TBL_PART_DATA;
155: pos++;
1.33 schwarze 156: getdata(tbl, tbl->last_span, ln, p, &pos);
157: return(1);
1.14 kristaps 158: } else if ('\0' == p[pos]) {
159: tbl->part = TBL_PART_DATA;
160: return(1);
161: }
162:
163: /* Fallthrough: T} is part of a word. */
164: }
1.17 kristaps 165:
166: dat->pos = TBL_DATA_DATA;
1.11 kristaps 167:
168: if (dat->string) {
169: sz = strlen(p) + strlen(dat->string) + 2;
170: dat->string = mandoc_realloc(dat->string, sz);
1.31 schwarze 171: (void)strlcat(dat->string, " ", sz);
172: (void)strlcat(dat->string, p, sz);
1.11 kristaps 173: } else
174: dat->string = mandoc_strdup(p);
1.19 kristaps 175:
1.30 schwarze 176: if (TBL_CELL_DOWN == dat->layout->pos)
177: mandoc_msg(MANDOCERR_TBLIGNDATA, tbl->parse,
178: ln, pos, NULL);
1.11 kristaps 179:
180: return(0);
1.1 kristaps 181: }
182:
1.20 schwarze 183: static struct tbl_span *
1.22 kristaps 184: newspan(struct tbl_node *tbl, int line, struct tbl_row *rp)
1.20 schwarze 185: {
186: struct tbl_span *dp;
187:
188: dp = mandoc_calloc(1, sizeof(struct tbl_span));
1.22 kristaps 189: dp->line = line;
1.26 schwarze 190: dp->opts = &tbl->opts;
1.20 schwarze 191: dp->layout = rp;
192: dp->head = tbl->first_head;
1.34 ! schwarze 193: dp->prev = tbl->last_span;
1.20 schwarze 194:
1.34 ! schwarze 195: if (dp->prev == NULL) {
! 196: tbl->first_span = dp;
1.21 schwarze 197: tbl->current_span = NULL;
1.20 schwarze 198: dp->flags |= TBL_SPAN_FIRST;
1.34 ! schwarze 199: } else
! 200: dp->prev->next = dp;
! 201: tbl->last_span = dp;
1.20 schwarze 202:
203: return(dp);
204: }
205:
1.33 schwarze 206: void
1.8 kristaps 207: tbl_data(struct tbl_node *tbl, int ln, const char *p)
1.1 kristaps 208: {
209: struct tbl_span *dp;
1.3 kristaps 210: struct tbl_row *rp;
1.1 kristaps 211: int pos;
212:
1.30 schwarze 213: /*
1.3 kristaps 214: * Choose a layout row: take the one following the last parsed
215: * span's. If that doesn't exist, use the last parsed span's.
1.15 kristaps 216: * If there's no last parsed span, use the first row. Lastly,
217: * if the last span was a horizontal line, use the same layout
218: * (it doesn't "consume" the layout).
1.3 kristaps 219: */
220:
221: if (tbl->last_span) {
222: assert(tbl->last_span->layout);
1.20 schwarze 223: if (tbl->last_span->pos == TBL_SPAN_DATA) {
224: for (rp = tbl->last_span->layout->next;
225: rp && rp->first; rp = rp->next) {
226: switch (rp->first->pos) {
1.30 schwarze 227: case TBL_CELL_HORIZ:
1.22 kristaps 228: dp = newspan(tbl, ln, rp);
1.20 schwarze 229: dp->pos = TBL_SPAN_HORIZ;
230: continue;
1.30 schwarze 231: case TBL_CELL_DHORIZ:
1.22 kristaps 232: dp = newspan(tbl, ln, rp);
1.20 schwarze 233: dp->pos = TBL_SPAN_DHORIZ;
234: continue;
235: default:
236: break;
237: }
238: break;
239: }
240: } else
1.15 kristaps 241: rp = tbl->last_span->layout;
1.18 kristaps 242:
1.3 kristaps 243: if (NULL == rp)
244: rp = tbl->last_span->layout;
245: } else
246: rp = tbl->first_row;
1.18 kristaps 247:
248: assert(rp);
1.3 kristaps 249:
1.22 kristaps 250: dp = newspan(tbl, ln, rp);
1.2 kristaps 251:
1.1 kristaps 252: if ( ! strcmp(p, "_")) {
1.5 kristaps 253: dp->pos = TBL_SPAN_HORIZ;
1.33 schwarze 254: return;
1.1 kristaps 255: } else if ( ! strcmp(p, "=")) {
1.5 kristaps 256: dp->pos = TBL_SPAN_DHORIZ;
1.33 schwarze 257: return;
1.1 kristaps 258: }
1.5 kristaps 259:
260: dp->pos = TBL_SPAN_DATA;
1.1 kristaps 261:
1.33 schwarze 262: pos = 0;
1.1 kristaps 263: while ('\0' != p[pos])
1.33 schwarze 264: getdata(tbl, dp, ln, p, &pos);
1.1 kristaps 265: }
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