Annotation of mandoc/tbl_opts.c, Revision 1.21
1.21 ! schwarze 1: /* $Id: tbl_opts.c,v 1.20 2015/01/28 17:32:07 schwarze Exp $ */
1.1 kristaps 2: /*
1.12 schwarze 3: * Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.17 schwarze 4: * Copyright (c) 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"
1.14 schwarze 19:
20: #include <sys/types.h>
1.11 kristaps 21:
1.3 kristaps 22: #include <ctype.h>
1.1 kristaps 23: #include <stdio.h>
24: #include <stdlib.h>
25: #include <string.h>
26:
1.3 kristaps 27: #include "mandoc.h"
1.10 kristaps 28: #include "libmandoc.h"
1.1 kristaps 29: #include "libroff.h"
30:
1.18 schwarze 31: #define KEY_DPOINT 0
32: #define KEY_DELIM 1
33: #define KEY_LINESIZE 2
34: #define KEY_TAB 3
1.1 kristaps 35:
36: struct tbl_phrase {
37: const char *name;
38: int key;
39: };
40:
1.18 schwarze 41: static const struct tbl_phrase keys[] = {
42: {"decimalpoint", 0},
43: {"delim", 0},
44: {"linesize", 0},
45: {"tab", 0},
46: {"allbox", TBL_OPT_ALLBOX | TBL_OPT_BOX},
47: {"box", TBL_OPT_BOX},
48: {"frame", TBL_OPT_BOX},
49: {"center", TBL_OPT_CENTRE},
50: {"centre", TBL_OPT_CENTRE},
51: {"doublebox", TBL_OPT_DBOX},
52: {"doubleframe", TBL_OPT_DBOX},
53: {"expand", TBL_OPT_EXPAND},
54: {"nokeep", TBL_OPT_NOKEEP},
55: {"nospaces", TBL_OPT_NOSPACE},
56: {"nowarn", TBL_OPT_NOWARN},
57: };
1.1 kristaps 58:
1.18 schwarze 59: #define KEY_MAXKEYS ((int)(sizeof(keys)/sizeof(keys[0])))
1.1 kristaps 60:
1.18 schwarze 61: static void arg(struct tbl_node *, int, const char *, int *, int);
1.1 kristaps 62:
1.13 schwarze 63:
1.17 schwarze 64: static void
1.18 schwarze 65: arg(struct tbl_node *tbl, int ln, const char *p, int *pos, int key)
1.1 kristaps 66: {
1.17 schwarze 67: int len, want;
1.1 kristaps 68:
1.18 schwarze 69: while (p[*pos] == ' ' || p[*pos] == '\t')
1.3 kristaps 70: (*pos)++;
1.1 kristaps 71:
1.17 schwarze 72: /* Arguments are enclosed in parentheses. */
1.3 kristaps 73:
1.17 schwarze 74: len = 0;
75: if (p[*pos] == '(') {
76: (*pos)++;
77: while (p[*pos + len] != ')')
78: len++;
1.1 kristaps 79: }
80:
81: switch (key) {
1.13 schwarze 82: case KEY_DELIM:
1.20 schwarze 83: mandoc_vmsg(MANDOCERR_TBLOPT_EQN, tbl->parse,
84: ln, *pos, "%.*s", len, p + *pos);
1.17 schwarze 85: want = 2;
1.1 kristaps 86: break;
1.13 schwarze 87: case KEY_TAB:
1.17 schwarze 88: want = 1;
89: if (len == want)
90: tbl->opts.tab = p[*pos];
91: break;
1.13 schwarze 92: case KEY_LINESIZE:
1.17 schwarze 93: want = 0;
94: break;
1.13 schwarze 95: case KEY_DPOINT:
1.17 schwarze 96: want = 1;
97: if (len == want)
98: tbl->opts.decimal = p[*pos];
99: break;
1.1 kristaps 100: default:
101: abort();
102: }
103:
1.17 schwarze 104: if (len == 0)
105: mandoc_msg(MANDOCERR_TBLOPT_NOARG,
1.18 schwarze 106: tbl->parse, ln, *pos, keys[key].name);
1.17 schwarze 107: else if (want && len != want)
108: mandoc_vmsg(MANDOCERR_TBLOPT_ARGSZ,
1.18 schwarze 109: tbl->parse, ln, *pos, "%s want %d have %d",
110: keys[key].name, want, len);
1.1 kristaps 111:
1.17 schwarze 112: *pos += len;
113: if (p[*pos] == ')')
114: (*pos)++;
1.1 kristaps 115: }
116:
1.17 schwarze 117: /*
118: * Parse one line of options up to the semicolon.
119: * Each option can be preceded by blanks and/or commas,
120: * and some options are followed by arguments.
121: */
122: void
1.19 schwarze 123: tbl_option(struct tbl_node *tbl, int ln, const char *p, int *offs)
1.1 kristaps 124: {
1.17 schwarze 125: int i, pos, len;
1.1 kristaps 126:
1.19 schwarze 127: pos = *offs;
1.17 schwarze 128: for (;;) {
1.18 schwarze 129: while (p[pos] == ' ' || p[pos] == '\t' || p[pos] == ',')
1.17 schwarze 130: pos++;
1.1 kristaps 131:
1.19 schwarze 132: if (p[pos] == ';') {
133: *offs = pos + 1;
1.17 schwarze 134: return;
1.19 schwarze 135: }
1.3 kristaps 136:
1.17 schwarze 137: /* Parse one option name. */
1.3 kristaps 138:
1.17 schwarze 139: len = 0;
140: while (isalpha((unsigned char)p[pos + len]))
141: len++;
142:
143: if (len == 0) {
144: mandoc_vmsg(MANDOCERR_TBLOPT_ALPHA,
145: tbl->parse, ln, pos, "%c", p[pos]);
146: pos++;
147: continue;
148: }
1.3 kristaps 149:
1.17 schwarze 150: /* Look up the option name. */
1.3 kristaps 151:
1.17 schwarze 152: i = 0;
153: while (i < KEY_MAXKEYS &&
154: (strncasecmp(p + pos, keys[i].name, len) ||
155: keys[i].name[len] != '\0'))
156: i++;
157:
158: if (i == KEY_MAXKEYS) {
159: mandoc_vmsg(MANDOCERR_TBLOPT_BAD, tbl->parse,
160: ln, pos, "%.*s", len, p + pos);
161: pos += len;
1.1 kristaps 162: continue;
1.17 schwarze 163: }
1.3 kristaps 164:
1.17 schwarze 165: /* Handle the option. */
1.3 kristaps 166:
1.17 schwarze 167: pos += len;
1.13 schwarze 168: if (keys[i].key)
1.5 kristaps 169: tbl->opts.opts |= keys[i].key;
1.17 schwarze 170: else
1.18 schwarze 171: arg(tbl, ln, p, &pos, i);
1.1 kristaps 172: }
173: }
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