Annotation of src/usr.bin/mandoc/tbl_data.c, Revision 1.24
1.24 ! schwarze 1: /* $OpenBSD: tbl_data.c,v 1.23 2015/01/28 17:30:37 schwarze Exp $ */
1.1 schwarze 2: /*
1.4 schwarze 3: * Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.21 schwarze 4: * Copyright (c) 2011, 2015 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:
1.24 ! schwarze 45: cp = dp->last == NULL ? dp->layout->first : dp->last->layout->next;
1.4 schwarze 46:
1.17 schwarze 47: /*
1.12 schwarze 48: * Skip over spanners, since
1.5 schwarze 49: * we want to match data with data layout cells in the header.
50: */
1.4 schwarze 51:
1.24 ! schwarze 52: while (cp != NULL && cp->pos == TBL_CELL_SPAN)
1.4 schwarze 53: cp = cp->next;
54:
1.6 schwarze 55: /*
56: * Stop processing when we reach the end of the available layout
57: * cells. This means that we have extra input.
58: */
59:
1.24 ! schwarze 60: if (cp == NULL) {
1.23 schwarze 61: mandoc_msg(MANDOCERR_TBLDATA_EXTRA, tbl->parse,
62: ln, *pos, p + *pos);
1.6 schwarze 63: /* Skip to the end... */
64: while (p[*pos])
65: (*pos)++;
1.20 schwarze 66: return;
1.6 schwarze 67: }
68:
1.24 ! schwarze 69: dat = mandoc_calloc(1, sizeof(*dat));
1.4 schwarze 70: dat->layout = cp;
71: dat->pos = TBL_DATA_NONE;
1.24 ! schwarze 72: dat->spans = 0;
! 73: for (cp = cp->next; cp != NULL; cp = cp->next)
! 74: if (cp->pos == TBL_CELL_SPAN)
! 75: dat->spans++;
1.6 schwarze 76: else
77: break;
1.17 schwarze 78:
1.24 ! schwarze 79: if (dp->last == NULL)
! 80: dp->first = dat;
! 81: else
1.4 schwarze 82: dp->last->next = dat;
1.24 ! schwarze 83: dp->last = dat;
1.4 schwarze 84:
85: sv = *pos;
86: while (p[*pos] && p[*pos] != tbl->opts.tab)
87: (*pos)++;
88:
89: /*
90: * Check for a continued-data scope opening. This consists of a
91: * trailing `T{' at the end of the line. Subsequent lines,
92: * until a standalone `T}', are included in our cell.
93: */
1.1 schwarze 94:
1.24 ! schwarze 95: if (*pos - sv == 2 && p[sv] == 'T' && p[sv + 1] == '{') {
1.4 schwarze 96: tbl->part = TBL_PART_CDATA;
1.20 schwarze 97: return;
1.4 schwarze 98: }
1.1 schwarze 99:
1.24 ! schwarze 100: dat->string = mandoc_strndup(p + sv, *pos - sv);
1.1 schwarze 101:
1.4 schwarze 102: if (p[*pos])
103: (*pos)++;
1.1 schwarze 104:
105: if ( ! strcmp(dat->string, "_"))
1.4 schwarze 106: dat->pos = TBL_DATA_HORIZ;
1.1 schwarze 107: else if ( ! strcmp(dat->string, "="))
1.4 schwarze 108: dat->pos = TBL_DATA_DHORIZ;
1.1 schwarze 109: else if ( ! strcmp(dat->string, "\\_"))
1.4 schwarze 110: dat->pos = TBL_DATA_NHORIZ;
1.1 schwarze 111: else if ( ! strcmp(dat->string, "\\="))
1.4 schwarze 112: dat->pos = TBL_DATA_NDHORIZ;
1.1 schwarze 113: else
1.4 schwarze 114: dat->pos = TBL_DATA_DATA;
115:
1.24 ! schwarze 116: if ((dat->layout->pos == TBL_CELL_HORIZ ||
! 117: dat->layout->pos == TBL_CELL_DHORIZ ||
! 118: dat->layout->pos == TBL_CELL_DOWN) &&
! 119: dat->pos == TBL_DATA_DATA && *dat->string != '\0')
! 120: mandoc_msg(MANDOCERR_TBLDATA_SPAN,
! 121: tbl->parse, ln, sv, dat->string);
1.1 schwarze 122: }
123:
1.4 schwarze 124: int
1.22 schwarze 125: tbl_cdata(struct tbl_node *tbl, int ln, const char *p, int pos)
1.4 schwarze 126: {
127: struct tbl_dat *dat;
1.17 schwarze 128: size_t sz;
1.4 schwarze 129:
130: dat = tbl->last_span->last;
1.5 schwarze 131:
132: if (p[pos] == 'T' && p[pos + 1] == '}') {
133: pos += 2;
134: if (p[pos] == tbl->opts.tab) {
135: tbl->part = TBL_PART_DATA;
136: pos++;
1.20 schwarze 137: getdata(tbl, tbl->last_span, ln, p, &pos);
138: return(1);
1.24 ! schwarze 139: } else if (p[pos] == '\0') {
1.5 schwarze 140: tbl->part = TBL_PART_DATA;
141: return(1);
142: }
143:
144: /* Fallthrough: T} is part of a word. */
145: }
1.4 schwarze 146:
1.6 schwarze 147: dat->pos = TBL_DATA_DATA;
148:
1.24 ! schwarze 149: if (dat->string != NULL) {
1.23 schwarze 150: sz = strlen(p + pos) + strlen(dat->string) + 2;
1.4 schwarze 151: dat->string = mandoc_realloc(dat->string, sz);
1.18 schwarze 152: (void)strlcat(dat->string, " ", sz);
1.23 schwarze 153: (void)strlcat(dat->string, p + pos, sz);
1.4 schwarze 154: } else
1.23 schwarze 155: dat->string = mandoc_strdup(p + pos);
1.4 schwarze 156:
1.24 ! schwarze 157: if (dat->layout->pos == TBL_CELL_DOWN)
1.23 schwarze 158: mandoc_msg(MANDOCERR_TBLDATA_SPAN, tbl->parse,
159: ln, pos, dat->string);
1.6 schwarze 160:
1.4 schwarze 161: return(0);
162: }
1.1 schwarze 163:
1.7 schwarze 164: static struct tbl_span *
1.9 schwarze 165: newspan(struct tbl_node *tbl, int line, struct tbl_row *rp)
1.7 schwarze 166: {
167: struct tbl_span *dp;
168:
1.24 ! schwarze 169: dp = mandoc_calloc(1, sizeof(*dp));
1.9 schwarze 170: dp->line = line;
1.13 schwarze 171: dp->opts = &tbl->opts;
1.7 schwarze 172: dp->layout = rp;
173: dp->head = tbl->first_head;
1.21 schwarze 174: dp->prev = tbl->last_span;
1.7 schwarze 175:
1.21 schwarze 176: if (dp->prev == NULL) {
177: tbl->first_span = dp;
1.8 schwarze 178: tbl->current_span = NULL;
1.7 schwarze 179: dp->flags |= TBL_SPAN_FIRST;
1.21 schwarze 180: } else
181: dp->prev->next = dp;
182: tbl->last_span = dp;
1.7 schwarze 183:
184: return(dp);
185: }
186:
1.20 schwarze 187: void
1.22 schwarze 188: tbl_data(struct tbl_node *tbl, int ln, const char *p, int pos)
1.1 schwarze 189: {
190: struct tbl_span *dp;
1.4 schwarze 191: struct tbl_row *rp;
192:
1.17 schwarze 193: /*
1.4 schwarze 194: * Choose a layout row: take the one following the last parsed
195: * span's. If that doesn't exist, use the last parsed span's.
1.6 schwarze 196: * If there's no last parsed span, use the first row. Lastly,
197: * if the last span was a horizontal line, use the same layout
198: * (it doesn't "consume" the layout).
1.4 schwarze 199: */
200:
1.24 ! schwarze 201: if (tbl->last_span != NULL) {
1.7 schwarze 202: if (tbl->last_span->pos == TBL_SPAN_DATA) {
203: for (rp = tbl->last_span->layout->next;
1.24 ! schwarze 204: rp != NULL && rp->first != NULL;
! 205: rp = rp->next) {
1.7 schwarze 206: switch (rp->first->pos) {
1.17 schwarze 207: case TBL_CELL_HORIZ:
1.9 schwarze 208: dp = newspan(tbl, ln, rp);
1.7 schwarze 209: dp->pos = TBL_SPAN_HORIZ;
210: continue;
1.17 schwarze 211: case TBL_CELL_DHORIZ:
1.9 schwarze 212: dp = newspan(tbl, ln, rp);
1.7 schwarze 213: dp->pos = TBL_SPAN_DHORIZ;
214: continue;
215: default:
216: break;
217: }
218: break;
219: }
220: } else
1.6 schwarze 221: rp = tbl->last_span->layout;
222:
1.24 ! schwarze 223: if (rp == NULL)
1.4 schwarze 224: rp = tbl->last_span->layout;
225: } else
226: rp = tbl->first_row;
1.6 schwarze 227:
228: assert(rp);
1.4 schwarze 229:
1.9 schwarze 230: dp = newspan(tbl, ln, rp);
1.1 schwarze 231:
232: if ( ! strcmp(p, "_")) {
1.4 schwarze 233: dp->pos = TBL_SPAN_HORIZ;
1.20 schwarze 234: return;
1.1 schwarze 235: } else if ( ! strcmp(p, "=")) {
1.4 schwarze 236: dp->pos = TBL_SPAN_DHORIZ;
1.20 schwarze 237: return;
1.1 schwarze 238: }
239:
1.4 schwarze 240: dp->pos = TBL_SPAN_DATA;
1.1 schwarze 241:
1.24 ! schwarze 242: while (p[pos] != '\0')
1.20 schwarze 243: getdata(tbl, dp, ln, p, &pos);
1.1 schwarze 244: }
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