Annotation of mandoc/tbl_data.c, Revision 1.37
1.37 ! schwarze 1: /* $Id: tbl_data.c,v 1.36 2015/01/28 17:32:07 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;
1.37 ! schwarze 45: int sv;
1.1 kristaps 46:
1.37 ! schwarze 47: cp = dp->last == NULL ? dp->layout->first : dp->last->layout->next;
1.3 kristaps 48:
1.30 schwarze 49: /*
1.25 schwarze 50: * Skip over spanners, since
1.12 kristaps 51: * we want to match data with data layout cells in the header.
52: */
1.3 kristaps 53:
1.37 ! schwarze 54: while (cp != NULL && cp->pos == TBL_CELL_SPAN)
1.3 kristaps 55: cp = cp->next;
56:
1.16 kristaps 57: /*
58: * Stop processing when we reach the end of the available layout
59: * cells. This means that we have extra input.
60: */
61:
1.37 ! schwarze 62: if (cp == NULL) {
1.36 schwarze 63: mandoc_msg(MANDOCERR_TBLDATA_EXTRA, tbl->parse,
64: ln, *pos, p + *pos);
1.16 kristaps 65: /* Skip to the end... */
66: while (p[*pos])
67: (*pos)++;
1.33 schwarze 68: return;
1.16 kristaps 69: }
70:
1.37 ! schwarze 71: dat = mandoc_calloc(1, sizeof(*dat));
1.3 kristaps 72: dat->layout = cp;
1.11 kristaps 73: dat->pos = TBL_DATA_NONE;
1.37 ! schwarze 74: dat->spans = 0;
! 75: for (cp = cp->next; cp != NULL; cp = cp->next)
! 76: if (cp->pos == TBL_CELL_SPAN)
! 77: dat->spans++;
1.16 kristaps 78: else
79: break;
1.30 schwarze 80:
1.37 ! schwarze 81: if (dp->last == NULL)
! 82: dp->first = dat;
! 83: else
1.1 kristaps 84: dp->last->next = dat;
1.37 ! schwarze 85: dp->last = dat;
1.1 kristaps 86:
87: sv = *pos;
1.8 kristaps 88: while (p[*pos] && p[*pos] != tbl->opts.tab)
1.1 kristaps 89: (*pos)++;
90:
1.11 kristaps 91: /*
92: * Check for a continued-data scope opening. This consists of a
93: * trailing `T{' at the end of the line. Subsequent lines,
94: * until a standalone `T}', are included in our cell.
95: */
96:
1.37 ! schwarze 97: if (*pos - sv == 2 && p[sv] == 'T' && p[sv + 1] == '{') {
1.11 kristaps 98: tbl->part = TBL_PART_CDATA;
1.33 schwarze 99: return;
1.11 kristaps 100: }
101:
1.37 ! schwarze 102: dat->string = mandoc_strndup(p + sv, *pos - sv);
1.1 kristaps 103:
104: if (p[*pos])
105: (*pos)++;
106:
107: if ( ! strcmp(dat->string, "_"))
1.5 kristaps 108: dat->pos = TBL_DATA_HORIZ;
1.1 kristaps 109: else if ( ! strcmp(dat->string, "="))
1.5 kristaps 110: dat->pos = TBL_DATA_DHORIZ;
1.1 kristaps 111: else if ( ! strcmp(dat->string, "\\_"))
1.5 kristaps 112: dat->pos = TBL_DATA_NHORIZ;
1.1 kristaps 113: else if ( ! strcmp(dat->string, "\\="))
1.5 kristaps 114: dat->pos = TBL_DATA_NDHORIZ;
115: else
116: dat->pos = TBL_DATA_DATA;
1.11 kristaps 117:
1.37 ! schwarze 118: if ((dat->layout->pos == TBL_CELL_HORIZ ||
! 119: dat->layout->pos == TBL_CELL_DHORIZ ||
! 120: dat->layout->pos == TBL_CELL_DOWN) &&
! 121: dat->pos == TBL_DATA_DATA && *dat->string != '\0')
! 122: mandoc_msg(MANDOCERR_TBLDATA_SPAN,
! 123: tbl->parse, ln, sv, dat->string);
1.11 kristaps 124: }
125:
126: int
1.35 schwarze 127: tbl_cdata(struct tbl_node *tbl, int ln, const char *p, int pos)
1.11 kristaps 128: {
129: struct tbl_dat *dat;
1.30 schwarze 130: size_t sz;
1.11 kristaps 131:
132: dat = tbl->last_span->last;
1.14 kristaps 133:
134: if (p[pos] == 'T' && p[pos + 1] == '}') {
135: pos += 2;
136: if (p[pos] == tbl->opts.tab) {
137: tbl->part = TBL_PART_DATA;
138: pos++;
1.33 schwarze 139: getdata(tbl, tbl->last_span, ln, p, &pos);
140: return(1);
1.37 ! schwarze 141: } else if (p[pos] == '\0') {
1.14 kristaps 142: tbl->part = TBL_PART_DATA;
143: return(1);
144: }
145:
146: /* Fallthrough: T} is part of a word. */
147: }
1.17 kristaps 148:
149: dat->pos = TBL_DATA_DATA;
1.11 kristaps 150:
1.37 ! schwarze 151: if (dat->string != NULL) {
1.36 schwarze 152: sz = strlen(p + pos) + strlen(dat->string) + 2;
1.11 kristaps 153: dat->string = mandoc_realloc(dat->string, sz);
1.31 schwarze 154: (void)strlcat(dat->string, " ", sz);
1.36 schwarze 155: (void)strlcat(dat->string, p + pos, sz);
1.11 kristaps 156: } else
1.36 schwarze 157: dat->string = mandoc_strdup(p + pos);
1.19 kristaps 158:
1.37 ! schwarze 159: if (dat->layout->pos == TBL_CELL_DOWN)
1.36 schwarze 160: mandoc_msg(MANDOCERR_TBLDATA_SPAN, tbl->parse,
161: ln, pos, dat->string);
1.11 kristaps 162:
163: return(0);
1.1 kristaps 164: }
165:
1.20 schwarze 166: static struct tbl_span *
1.22 kristaps 167: newspan(struct tbl_node *tbl, int line, struct tbl_row *rp)
1.20 schwarze 168: {
169: struct tbl_span *dp;
170:
1.37 ! schwarze 171: dp = mandoc_calloc(1, sizeof(*dp));
1.22 kristaps 172: dp->line = line;
1.26 schwarze 173: dp->opts = &tbl->opts;
1.20 schwarze 174: dp->layout = rp;
175: dp->head = tbl->first_head;
1.34 schwarze 176: dp->prev = tbl->last_span;
1.20 schwarze 177:
1.34 schwarze 178: if (dp->prev == NULL) {
179: tbl->first_span = dp;
1.21 schwarze 180: tbl->current_span = NULL;
1.20 schwarze 181: dp->flags |= TBL_SPAN_FIRST;
1.34 schwarze 182: } else
183: dp->prev->next = dp;
184: tbl->last_span = dp;
1.20 schwarze 185:
186: return(dp);
187: }
188:
1.33 schwarze 189: void
1.35 schwarze 190: tbl_data(struct tbl_node *tbl, int ln, const char *p, int pos)
1.1 kristaps 191: {
192: struct tbl_span *dp;
1.3 kristaps 193: struct tbl_row *rp;
1.1 kristaps 194:
1.30 schwarze 195: /*
1.3 kristaps 196: * Choose a layout row: take the one following the last parsed
197: * span's. If that doesn't exist, use the last parsed span's.
1.15 kristaps 198: * If there's no last parsed span, use the first row. Lastly,
199: * if the last span was a horizontal line, use the same layout
200: * (it doesn't "consume" the layout).
1.3 kristaps 201: */
202:
1.37 ! schwarze 203: if (tbl->last_span != NULL) {
1.20 schwarze 204: if (tbl->last_span->pos == TBL_SPAN_DATA) {
205: for (rp = tbl->last_span->layout->next;
1.37 ! schwarze 206: rp != NULL && rp->first != NULL;
! 207: rp = rp->next) {
1.20 schwarze 208: switch (rp->first->pos) {
1.30 schwarze 209: case TBL_CELL_HORIZ:
1.22 kristaps 210: dp = newspan(tbl, ln, rp);
1.20 schwarze 211: dp->pos = TBL_SPAN_HORIZ;
212: continue;
1.30 schwarze 213: case TBL_CELL_DHORIZ:
1.22 kristaps 214: dp = newspan(tbl, ln, rp);
1.20 schwarze 215: dp->pos = TBL_SPAN_DHORIZ;
216: continue;
217: default:
218: break;
219: }
220: break;
221: }
222: } else
1.15 kristaps 223: rp = tbl->last_span->layout;
1.18 kristaps 224:
1.37 ! schwarze 225: if (rp == NULL)
1.3 kristaps 226: rp = tbl->last_span->layout;
227: } else
228: rp = tbl->first_row;
1.18 kristaps 229:
230: assert(rp);
1.3 kristaps 231:
1.22 kristaps 232: dp = newspan(tbl, ln, rp);
1.2 kristaps 233:
1.1 kristaps 234: if ( ! strcmp(p, "_")) {
1.5 kristaps 235: dp->pos = TBL_SPAN_HORIZ;
1.33 schwarze 236: return;
1.1 kristaps 237: } else if ( ! strcmp(p, "=")) {
1.5 kristaps 238: dp->pos = TBL_SPAN_DHORIZ;
1.33 schwarze 239: return;
1.1 kristaps 240: }
1.5 kristaps 241:
242: dp->pos = TBL_SPAN_DATA;
1.1 kristaps 243:
1.37 ! schwarze 244: while (p[pos] != '\0')
1.33 schwarze 245: getdata(tbl, dp, ln, p, &pos);
1.1 kristaps 246: }
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