Annotation of src/usr.bin/mandoc/tbl_opts.c, Revision 1.12
1.12 ! schwarze 1: /* $OpenBSD: tbl_opts.c,v 1.11 2015/01/28 15:02:25 schwarze Exp $ */
1.1 schwarze 2: /*
1.2 schwarze 3: * Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.9 schwarze 4: * Copyright (c) 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: */
1.7 schwarze 18: #include <sys/types.h>
19:
1.1 schwarze 20: #include <ctype.h>
21: #include <stdio.h>
22: #include <stdlib.h>
23: #include <string.h>
24:
25: #include "mandoc.h"
1.4 schwarze 26: #include "libmandoc.h"
1.1 schwarze 27: #include "libroff.h"
28:
1.10 schwarze 29: #define KEY_DPOINT 0
30: #define KEY_DELIM 1
31: #define KEY_LINESIZE 2
32: #define KEY_TAB 3
1.1 schwarze 33:
34: struct tbl_phrase {
35: const char *name;
36: int key;
37: };
38:
1.10 schwarze 39: static const struct tbl_phrase keys[] = {
40: {"decimalpoint", 0},
41: {"delim", 0},
42: {"linesize", 0},
43: {"tab", 0},
44: {"allbox", TBL_OPT_ALLBOX | TBL_OPT_BOX},
45: {"box", TBL_OPT_BOX},
46: {"frame", TBL_OPT_BOX},
47: {"center", TBL_OPT_CENTRE},
48: {"centre", TBL_OPT_CENTRE},
49: {"doublebox", TBL_OPT_DBOX},
50: {"doubleframe", TBL_OPT_DBOX},
51: {"expand", TBL_OPT_EXPAND},
52: {"nokeep", TBL_OPT_NOKEEP},
53: {"nospaces", TBL_OPT_NOSPACE},
54: {"nowarn", TBL_OPT_NOWARN},
55: };
1.1 schwarze 56:
1.10 schwarze 57: #define KEY_MAXKEYS ((int)(sizeof(keys)/sizeof(keys[0])))
1.1 schwarze 58:
1.10 schwarze 59: static void arg(struct tbl_node *, int, const char *, int *, int);
1.1 schwarze 60:
1.5 schwarze 61:
1.9 schwarze 62: static void
1.10 schwarze 63: arg(struct tbl_node *tbl, int ln, const char *p, int *pos, int key)
1.1 schwarze 64: {
1.9 schwarze 65: int len, want;
1.1 schwarze 66:
1.10 schwarze 67: while (p[*pos] == ' ' || p[*pos] == '\t')
1.1 schwarze 68: (*pos)++;
69:
1.9 schwarze 70: /* Arguments are enclosed in parentheses. */
1.1 schwarze 71:
1.9 schwarze 72: len = 0;
73: if (p[*pos] == '(') {
74: (*pos)++;
75: while (p[*pos + len] != ')')
76: len++;
1.1 schwarze 77: }
78:
79: switch (key) {
1.5 schwarze 80: case KEY_DELIM:
1.12 ! schwarze 81: mandoc_vmsg(MANDOCERR_TBLOPT_EQN, tbl->parse,
! 82: ln, *pos, "%.*s", len, p + *pos);
1.9 schwarze 83: want = 2;
1.1 schwarze 84: break;
1.5 schwarze 85: case KEY_TAB:
1.9 schwarze 86: want = 1;
87: if (len == want)
88: tbl->opts.tab = p[*pos];
89: break;
1.5 schwarze 90: case KEY_LINESIZE:
1.9 schwarze 91: want = 0;
92: break;
1.5 schwarze 93: case KEY_DPOINT:
1.9 schwarze 94: want = 1;
95: if (len == want)
96: tbl->opts.decimal = p[*pos];
97: break;
1.1 schwarze 98: default:
99: abort();
100: /* NOTREACHED */
101: }
102:
1.9 schwarze 103: if (len == 0)
104: mandoc_msg(MANDOCERR_TBLOPT_NOARG,
1.10 schwarze 105: tbl->parse, ln, *pos, keys[key].name);
1.9 schwarze 106: else if (want && len != want)
107: mandoc_vmsg(MANDOCERR_TBLOPT_ARGSZ,
1.10 schwarze 108: tbl->parse, ln, *pos, "%s want %d have %d",
109: keys[key].name, want, len);
1.1 schwarze 110:
1.9 schwarze 111: *pos += len;
112: if (p[*pos] == ')')
113: (*pos)++;
1.1 schwarze 114: }
115:
1.9 schwarze 116: /*
117: * Parse one line of options up to the semicolon.
118: * Each option can be preceded by blanks and/or commas,
119: * and some options are followed by arguments.
120: */
121: void
1.11 schwarze 122: tbl_option(struct tbl_node *tbl, int ln, const char *p, int *offs)
1.1 schwarze 123: {
1.9 schwarze 124: int i, pos, len;
1.1 schwarze 125:
1.11 schwarze 126: pos = *offs;
1.9 schwarze 127: for (;;) {
1.10 schwarze 128: while (p[pos] == ' ' || p[pos] == '\t' || p[pos] == ',')
1.9 schwarze 129: pos++;
1.1 schwarze 130:
1.11 schwarze 131: if (p[pos] == ';') {
132: *offs = pos + 1;
1.9 schwarze 133: return;
1.11 schwarze 134: }
1.1 schwarze 135:
1.9 schwarze 136: /* Parse one option name. */
1.1 schwarze 137:
1.9 schwarze 138: len = 0;
139: while (isalpha((unsigned char)p[pos + len]))
140: len++;
141:
142: if (len == 0) {
143: mandoc_vmsg(MANDOCERR_TBLOPT_ALPHA,
144: tbl->parse, ln, pos, "%c", p[pos]);
145: pos++;
146: continue;
147: }
1.1 schwarze 148:
1.9 schwarze 149: /* Look up the option name. */
1.1 schwarze 150:
1.9 schwarze 151: i = 0;
152: while (i < KEY_MAXKEYS &&
153: (strncasecmp(p + pos, keys[i].name, len) ||
154: keys[i].name[len] != '\0'))
155: i++;
156:
157: if (i == KEY_MAXKEYS) {
158: mandoc_vmsg(MANDOCERR_TBLOPT_BAD, tbl->parse,
159: ln, pos, "%.*s", len, p + pos);
160: pos += len;
1.1 schwarze 161: continue;
1.9 schwarze 162: }
1.1 schwarze 163:
1.9 schwarze 164: /* Handle the option. */
1.1 schwarze 165:
1.9 schwarze 166: pos += len;
1.5 schwarze 167: if (keys[i].key)
1.1 schwarze 168: tbl->opts.opts |= keys[i].key;
1.9 schwarze 169: else
1.10 schwarze 170: arg(tbl, ln, p, &pos, i);
1.1 schwarze 171: }
172: }
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