Annotation of src/usr.bin/mandoc/tbl_data.c, Revision 1.29
1.29 ! schwarze 1: /* $OpenBSD: tbl_data.c,v 1.28 2015/10/06 18:30:44 schwarze Exp $ */
1.1 schwarze 2: /*
1.4 schwarze 3: * Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.29 ! schwarze 4: * Copyright (c) 2011, 2015, 2017 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: */
1.19 schwarze 18: #include <sys/types.h>
19:
1.1 schwarze 20: #include <assert.h>
21: #include <ctype.h>
22: #include <stdlib.h>
23: #include <string.h>
1.4 schwarze 24: #include <time.h>
1.1 schwarze 25:
1.4 schwarze 26: #include "mandoc.h"
1.16 schwarze 27: #include "mandoc_aux.h"
1.4 schwarze 28: #include "libmandoc.h"
29: #include "libroff.h"
30:
1.20 schwarze 31: static void getdata(struct tbl_node *, struct tbl_span *,
1.9 schwarze 32: int, const char *, int *);
1.17 schwarze 33: static struct tbl_span *newspan(struct tbl_node *, int,
1.9 schwarze 34: struct tbl_row *);
1.4 schwarze 35:
1.17 schwarze 36:
1.20 schwarze 37: static void
1.17 schwarze 38: getdata(struct tbl_node *tbl, struct tbl_span *dp,
1.4 schwarze 39: int ln, const char *p, int *pos)
1.1 schwarze 40: {
1.4 schwarze 41: struct tbl_dat *dat;
42: struct tbl_cell *cp;
1.24 schwarze 43: int sv;
1.4 schwarze 44:
1.25 schwarze 45: /* Advance to the next layout cell, skipping spanners. */
46:
1.24 schwarze 47: cp = dp->last == NULL ? dp->layout->first : dp->last->layout->next;
48: while (cp != NULL && cp->pos == TBL_CELL_SPAN)
1.4 schwarze 49: cp = cp->next;
50:
1.6 schwarze 51: /*
52: * Stop processing when we reach the end of the available layout
53: * cells. This means that we have extra input.
54: */
55:
1.24 schwarze 56: if (cp == NULL) {
1.23 schwarze 57: mandoc_msg(MANDOCERR_TBLDATA_EXTRA, tbl->parse,
58: ln, *pos, p + *pos);
1.6 schwarze 59: /* Skip to the end... */
60: while (p[*pos])
61: (*pos)++;
1.20 schwarze 62: return;
1.6 schwarze 63: }
64:
1.24 schwarze 65: dat = mandoc_calloc(1, sizeof(*dat));
1.4 schwarze 66: dat->layout = cp;
67: dat->pos = TBL_DATA_NONE;
1.24 schwarze 68: dat->spans = 0;
69: for (cp = cp->next; cp != NULL; cp = cp->next)
70: if (cp->pos == TBL_CELL_SPAN)
71: dat->spans++;
1.6 schwarze 72: else
73: break;
1.17 schwarze 74:
1.24 schwarze 75: if (dp->last == NULL)
76: dp->first = dat;
77: else
1.4 schwarze 78: dp->last->next = dat;
1.24 schwarze 79: dp->last = dat;
1.4 schwarze 80:
81: sv = *pos;
82: while (p[*pos] && p[*pos] != tbl->opts.tab)
83: (*pos)++;
84:
85: /*
86: * Check for a continued-data scope opening. This consists of a
87: * trailing `T{' at the end of the line. Subsequent lines,
88: * until a standalone `T}', are included in our cell.
89: */
1.1 schwarze 90:
1.24 schwarze 91: if (*pos - sv == 2 && p[sv] == 'T' && p[sv + 1] == '{') {
1.4 schwarze 92: tbl->part = TBL_PART_CDATA;
1.20 schwarze 93: return;
1.4 schwarze 94: }
1.1 schwarze 95:
1.24 schwarze 96: dat->string = mandoc_strndup(p + sv, *pos - sv);
1.1 schwarze 97:
1.4 schwarze 98: if (p[*pos])
99: (*pos)++;
1.1 schwarze 100:
101: if ( ! strcmp(dat->string, "_"))
1.4 schwarze 102: dat->pos = TBL_DATA_HORIZ;
1.1 schwarze 103: else if ( ! strcmp(dat->string, "="))
1.4 schwarze 104: dat->pos = TBL_DATA_DHORIZ;
1.1 schwarze 105: else if ( ! strcmp(dat->string, "\\_"))
1.4 schwarze 106: dat->pos = TBL_DATA_NHORIZ;
1.1 schwarze 107: else if ( ! strcmp(dat->string, "\\="))
1.4 schwarze 108: dat->pos = TBL_DATA_NDHORIZ;
1.1 schwarze 109: else
1.4 schwarze 110: dat->pos = TBL_DATA_DATA;
111:
1.24 schwarze 112: if ((dat->layout->pos == TBL_CELL_HORIZ ||
113: dat->layout->pos == TBL_CELL_DHORIZ ||
114: dat->layout->pos == TBL_CELL_DOWN) &&
115: dat->pos == TBL_DATA_DATA && *dat->string != '\0')
116: mandoc_msg(MANDOCERR_TBLDATA_SPAN,
117: tbl->parse, ln, sv, dat->string);
1.1 schwarze 118: }
119:
1.4 schwarze 120: int
1.22 schwarze 121: tbl_cdata(struct tbl_node *tbl, int ln, const char *p, int pos)
1.4 schwarze 122: {
123: struct tbl_dat *dat;
1.17 schwarze 124: size_t sz;
1.4 schwarze 125:
126: dat = tbl->last_span->last;
1.5 schwarze 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++;
1.27 schwarze 133: while (p[pos] != '\0')
134: getdata(tbl, tbl->last_span, ln, p, &pos);
1.28 schwarze 135: return 1;
1.24 schwarze 136: } else if (p[pos] == '\0') {
1.5 schwarze 137: tbl->part = TBL_PART_DATA;
1.28 schwarze 138: return 1;
1.5 schwarze 139: }
140:
141: /* Fallthrough: T} is part of a word. */
142: }
1.4 schwarze 143:
1.6 schwarze 144: dat->pos = TBL_DATA_DATA;
1.29 ! schwarze 145: dat->block = 1;
1.6 schwarze 146:
1.24 schwarze 147: if (dat->string != NULL) {
1.23 schwarze 148: sz = strlen(p + pos) + strlen(dat->string) + 2;
1.4 schwarze 149: dat->string = mandoc_realloc(dat->string, sz);
1.18 schwarze 150: (void)strlcat(dat->string, " ", sz);
1.23 schwarze 151: (void)strlcat(dat->string, p + pos, sz);
1.4 schwarze 152: } else
1.23 schwarze 153: dat->string = mandoc_strdup(p + pos);
1.4 schwarze 154:
1.24 schwarze 155: if (dat->layout->pos == TBL_CELL_DOWN)
1.23 schwarze 156: mandoc_msg(MANDOCERR_TBLDATA_SPAN, tbl->parse,
157: ln, pos, dat->string);
1.6 schwarze 158:
1.28 schwarze 159: return 0;
1.4 schwarze 160: }
1.1 schwarze 161:
1.7 schwarze 162: static struct tbl_span *
1.9 schwarze 163: newspan(struct tbl_node *tbl, int line, struct tbl_row *rp)
1.7 schwarze 164: {
165: struct tbl_span *dp;
166:
1.24 schwarze 167: dp = mandoc_calloc(1, sizeof(*dp));
1.9 schwarze 168: dp->line = line;
1.13 schwarze 169: dp->opts = &tbl->opts;
1.7 schwarze 170: dp->layout = rp;
1.21 schwarze 171: dp->prev = tbl->last_span;
1.7 schwarze 172:
1.21 schwarze 173: if (dp->prev == NULL) {
174: tbl->first_span = dp;
1.8 schwarze 175: tbl->current_span = NULL;
1.21 schwarze 176: } else
177: dp->prev->next = dp;
178: tbl->last_span = dp;
1.7 schwarze 179:
1.28 schwarze 180: return dp;
1.7 schwarze 181: }
182:
1.20 schwarze 183: void
1.22 schwarze 184: tbl_data(struct tbl_node *tbl, int ln, const char *p, int pos)
1.1 schwarze 185: {
186: struct tbl_span *dp;
1.4 schwarze 187: struct tbl_row *rp;
188:
1.17 schwarze 189: /*
1.4 schwarze 190: * Choose a layout row: take the one following the last parsed
191: * span's. If that doesn't exist, use the last parsed span's.
1.6 schwarze 192: * If there's no last parsed span, use the first row. Lastly,
193: * if the last span was a horizontal line, use the same layout
194: * (it doesn't "consume" the layout).
1.4 schwarze 195: */
196:
1.24 schwarze 197: if (tbl->last_span != NULL) {
1.7 schwarze 198: if (tbl->last_span->pos == TBL_SPAN_DATA) {
199: for (rp = tbl->last_span->layout->next;
1.24 schwarze 200: rp != NULL && rp->first != NULL;
201: rp = rp->next) {
1.7 schwarze 202: switch (rp->first->pos) {
1.17 schwarze 203: case TBL_CELL_HORIZ:
1.9 schwarze 204: dp = newspan(tbl, ln, rp);
1.7 schwarze 205: dp->pos = TBL_SPAN_HORIZ;
206: continue;
1.17 schwarze 207: case TBL_CELL_DHORIZ:
1.9 schwarze 208: dp = newspan(tbl, ln, rp);
1.7 schwarze 209: dp->pos = TBL_SPAN_DHORIZ;
210: continue;
211: default:
212: break;
213: }
214: break;
215: }
216: } else
1.6 schwarze 217: rp = tbl->last_span->layout;
218:
1.24 schwarze 219: if (rp == NULL)
1.4 schwarze 220: rp = tbl->last_span->layout;
221: } else
222: rp = tbl->first_row;
1.6 schwarze 223:
224: assert(rp);
1.4 schwarze 225:
1.9 schwarze 226: dp = newspan(tbl, ln, rp);
1.1 schwarze 227:
228: if ( ! strcmp(p, "_")) {
1.4 schwarze 229: dp->pos = TBL_SPAN_HORIZ;
1.20 schwarze 230: return;
1.1 schwarze 231: } else if ( ! strcmp(p, "=")) {
1.4 schwarze 232: dp->pos = TBL_SPAN_DHORIZ;
1.20 schwarze 233: return;
1.1 schwarze 234: }
235:
1.4 schwarze 236: dp->pos = TBL_SPAN_DATA;
1.1 schwarze 237:
1.24 schwarze 238: while (p[pos] != '\0')
1.20 schwarze 239: getdata(tbl, dp, ln, p, &pos);
1.1 schwarze 240: }