Annotation of mandoc/tbl_data.c, Revision 1.19
1.19 ! kristaps 1: /* $Id: tbl_data.c,v 1.18 2011/01/10 15:31:00 kristaps Exp $ */
1.1 kristaps 2: /*
3: * Copyright (c) 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
4: *
5: * Permission to use, copy, modify, and distribute this software for any
6: * purpose with or without fee is hereby granted, provided that the above
7: * copyright notice and this permission notice appear in all copies.
8: *
9: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16: */
1.11 kristaps 17: #ifdef HAVE_CONFIG_H
18: #include "config.h"
19: #endif
20:
1.1 kristaps 21: #include <assert.h>
22: #include <ctype.h>
23: #include <stdlib.h>
24: #include <string.h>
1.6 kristaps 25: #include <time.h>
1.1 kristaps 26:
27: #include "mandoc.h"
28: #include "libmandoc.h"
29: #include "libroff.h"
30:
1.11 kristaps 31: static int data(struct tbl_node *, struct tbl_span *,
1.1 kristaps 32: int, const char *, int *);
33:
1.11 kristaps 34: static int
1.8 kristaps 35: data(struct tbl_node *tbl, struct tbl_span *dp,
1.1 kristaps 36: int ln, const char *p, int *pos)
37: {
38: struct tbl_dat *dat;
1.3 kristaps 39: struct tbl_cell *cp;
1.16 kristaps 40: int sv, spans;
1.1 kristaps 41:
1.3 kristaps 42: cp = NULL;
43: if (dp->last && dp->last->layout)
44: cp = dp->last->layout->next;
45: else if (NULL == dp->last)
46: cp = dp->layout->first;
47:
1.12 kristaps 48: /*
49: * Skip over spanners and vertical lines to data formats, since
50: * we want to match data with data layout cells in the header.
51: */
1.3 kristaps 52:
53: while (cp && (TBL_CELL_VERT == cp->pos ||
1.12 kristaps 54: TBL_CELL_DVERT == cp->pos ||
55: TBL_CELL_SPAN == cp->pos))
1.3 kristaps 56: cp = cp->next;
57:
1.16 kristaps 58: /*
59: * Stop processing when we reach the end of the available layout
60: * cells. This means that we have extra input.
61: */
62:
63: if (NULL == cp) {
64: TBL_MSG(tbl, MANDOCERR_TBLEXTRADAT, ln, *pos);
65: /* Skip to the end... */
66: while (p[*pos])
67: (*pos)++;
68: return(1);
69: }
70:
1.1 kristaps 71: dat = mandoc_calloc(1, sizeof(struct tbl_dat));
1.3 kristaps 72: dat->layout = cp;
1.11 kristaps 73: dat->pos = TBL_DATA_NONE;
1.7 kristaps 74:
1.16 kristaps 75: assert(TBL_CELL_SPAN != cp->pos);
76:
77: for (spans = 0, cp = cp->next; cp; cp = cp->next)
78: if (TBL_CELL_SPAN == cp->pos)
79: spans++;
80: else
81: break;
82:
83: dat->spans = spans;
1.1 kristaps 84:
85: if (dp->last) {
86: dp->last->next = dat;
87: dp->last = dat;
88: } else
89: dp->last = dp->first = dat;
90:
91: sv = *pos;
1.8 kristaps 92: while (p[*pos] && p[*pos] != tbl->opts.tab)
1.1 kristaps 93: (*pos)++;
94:
1.11 kristaps 95: /*
96: * Check for a continued-data scope opening. This consists of a
97: * trailing `T{' at the end of the line. Subsequent lines,
98: * until a standalone `T}', are included in our cell.
99: */
100:
101: if (*pos - sv == 2 && 'T' == p[sv] && '{' == p[sv + 1]) {
102: tbl->part = TBL_PART_CDATA;
103: return(0);
104: }
105:
1.1 kristaps 106: dat->string = mandoc_malloc(*pos - sv + 1);
107: memcpy(dat->string, &p[sv], *pos - sv);
108: dat->string[*pos - sv] = '\0';
109:
110: if (p[*pos])
111: (*pos)++;
112:
113: if ( ! strcmp(dat->string, "_"))
1.5 kristaps 114: dat->pos = TBL_DATA_HORIZ;
1.1 kristaps 115: else if ( ! strcmp(dat->string, "="))
1.5 kristaps 116: dat->pos = TBL_DATA_DHORIZ;
1.1 kristaps 117: else if ( ! strcmp(dat->string, "\\_"))
1.5 kristaps 118: dat->pos = TBL_DATA_NHORIZ;
1.1 kristaps 119: else if ( ! strcmp(dat->string, "\\="))
1.5 kristaps 120: dat->pos = TBL_DATA_NDHORIZ;
121: else
122: dat->pos = TBL_DATA_DATA;
1.11 kristaps 123:
1.10 kristaps 124: if (TBL_CELL_HORIZ == dat->layout->pos ||
1.19 ! kristaps 125: TBL_CELL_DHORIZ == dat->layout->pos ||
! 126: TBL_CELL_DOWN == dat->layout->pos)
1.10 kristaps 127: if (TBL_DATA_DATA == dat->pos && '\0' != *dat->string)
128: TBL_MSG(tbl, MANDOCERR_TBLIGNDATA, ln, sv);
1.11 kristaps 129:
130: return(1);
131: }
132:
1.13 kristaps 133: /* ARGSUSED */
1.11 kristaps 134: int
135: tbl_cdata(struct tbl_node *tbl, int ln, const char *p)
136: {
137: struct tbl_dat *dat;
138: size_t sz;
1.14 kristaps 139: int pos;
1.11 kristaps 140:
1.14 kristaps 141: pos = 0;
1.11 kristaps 142:
143: dat = tbl->last_span->last;
1.14 kristaps 144:
145: if (p[pos] == 'T' && p[pos + 1] == '}') {
146: pos += 2;
147: if (p[pos] == tbl->opts.tab) {
148: tbl->part = TBL_PART_DATA;
149: pos++;
150: return(data(tbl, tbl->last_span, ln, p, &pos));
151: } else if ('\0' == p[pos]) {
152: tbl->part = TBL_PART_DATA;
153: return(1);
154: }
155:
156: /* Fallthrough: T} is part of a word. */
157: }
1.17 kristaps 158:
159: dat->pos = TBL_DATA_DATA;
1.11 kristaps 160:
161: if (dat->string) {
162: sz = strlen(p) + strlen(dat->string) + 2;
163: dat->string = mandoc_realloc(dat->string, sz);
164: strlcat(dat->string, " ", sz);
165: strlcat(dat->string, p, sz);
166: } else
167: dat->string = mandoc_strdup(p);
1.19 ! kristaps 168:
! 169: if (TBL_CELL_DOWN == dat->layout->pos)
! 170: TBL_MSG(tbl, MANDOCERR_TBLIGNDATA, ln, pos);
1.11 kristaps 171:
172: return(0);
1.1 kristaps 173: }
174:
1.2 kristaps 175: int
1.8 kristaps 176: tbl_data(struct tbl_node *tbl, int ln, const char *p)
1.1 kristaps 177: {
178: struct tbl_span *dp;
1.3 kristaps 179: struct tbl_row *rp;
1.1 kristaps 180: int pos;
181:
182: pos = 0;
183:
184: if ('\0' == p[pos]) {
185: TBL_MSG(tbl, MANDOCERR_TBL, ln, pos);
1.4 kristaps 186: return(0);
1.1 kristaps 187: }
188:
1.3 kristaps 189: /*
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.
1.15 kristaps 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).
1.3 kristaps 195: */
196:
197: if (tbl->last_span) {
198: assert(tbl->last_span->layout);
1.15 kristaps 199: if (tbl->last_span->pos == TBL_SPAN_DATA)
200: rp = tbl->last_span->layout->next;
201: else
202: rp = tbl->last_span->layout;
1.18 kristaps 203:
1.3 kristaps 204: if (NULL == rp)
205: rp = tbl->last_span->layout;
206: } else
207: rp = tbl->first_row;
1.18 kristaps 208:
209: assert(rp);
1.3 kristaps 210:
1.1 kristaps 211: dp = mandoc_calloc(1, sizeof(struct tbl_span));
1.9 kristaps 212: dp->tbl = &tbl->opts;
1.3 kristaps 213: dp->layout = rp;
1.9 kristaps 214: dp->head = tbl->first_head;
1.1 kristaps 215:
1.2 kristaps 216: if (tbl->last_span) {
217: tbl->last_span->next = dp;
218: tbl->last_span = dp;
1.9 kristaps 219: } else {
1.2 kristaps 220: tbl->last_span = tbl->first_span = dp;
1.9 kristaps 221: dp->flags |= TBL_SPAN_FIRST;
222: }
1.2 kristaps 223:
1.1 kristaps 224: if ( ! strcmp(p, "_")) {
1.5 kristaps 225: dp->pos = TBL_SPAN_HORIZ;
1.2 kristaps 226: return(1);
1.1 kristaps 227: } else if ( ! strcmp(p, "=")) {
1.5 kristaps 228: dp->pos = TBL_SPAN_DHORIZ;
1.2 kristaps 229: return(1);
1.1 kristaps 230: }
1.5 kristaps 231:
232: dp->pos = TBL_SPAN_DATA;
1.1 kristaps 233:
1.11 kristaps 234: /* This returns 0 when TBL_PART_CDATA is entered. */
235:
1.1 kristaps 236: while ('\0' != p[pos])
1.11 kristaps 237: if ( ! data(tbl, dp, ln, p, &pos))
238: return(0);
1.1 kristaps 239:
1.2 kristaps 240: return(1);
1.1 kristaps 241: }
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