From 5d69c6a2661bba0a22f3ecfd517e2e9767a38346 Mon Sep 17 00:00:00 2001
From: Cem Keylan <cem@ckyln.com>
Date: Fri, 16 Oct 2020 17:47:01 +0300
Subject: add tools

---
 usr.bin/mandoc/tbl_opts.c | 171 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 171 insertions(+)
 create mode 100644 usr.bin/mandoc/tbl_opts.c

(limited to 'usr.bin/mandoc/tbl_opts.c')

diff --git a/usr.bin/mandoc/tbl_opts.c b/usr.bin/mandoc/tbl_opts.c
new file mode 100644
index 0000000..8f1e77c
--- /dev/null
+++ b/usr.bin/mandoc/tbl_opts.c
@@ -0,0 +1,171 @@
+/*	$OpenBSD: tbl_opts.c,v 1.16 2018/12/14 05:17:45 schwarze Exp $ */
+/*
+ * Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
+ * Copyright (c) 2015 Ingo Schwarze <schwarze@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include <sys/types.h>
+
+#include <ctype.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "mandoc.h"
+#include "tbl.h"
+#include "libmandoc.h"
+#include "tbl_int.h"
+
+#define	KEY_DPOINT	0
+#define	KEY_DELIM	1
+#define	KEY_LINESIZE	2
+#define	KEY_TAB		3
+
+struct	tbl_phrase {
+	const char	*name;
+	int		 key;
+};
+
+static	const struct tbl_phrase keys[] = {
+	{"decimalpoint", 0},
+	{"delim",	 0},
+	{"linesize",	 0},
+	{"tab",		 0},
+	{"allbox",	 TBL_OPT_ALLBOX | TBL_OPT_BOX},
+	{"box",		 TBL_OPT_BOX},
+	{"frame",	 TBL_OPT_BOX},
+	{"center",	 TBL_OPT_CENTRE},
+	{"centre",	 TBL_OPT_CENTRE},
+	{"doublebox",	 TBL_OPT_DBOX},
+	{"doubleframe",  TBL_OPT_DBOX},
+	{"expand",	 TBL_OPT_EXPAND},
+	{"nokeep",	 TBL_OPT_NOKEEP},
+	{"nospaces",	 TBL_OPT_NOSPACE},
+	{"nowarn",	 TBL_OPT_NOWARN},
+};
+
+#define KEY_MAXKEYS ((int)(sizeof(keys)/sizeof(keys[0])))
+
+static	void	 arg(struct tbl_node *, int, const char *, int *, int);
+
+
+static void
+arg(struct tbl_node *tbl, int ln, const char *p, int *pos, int key)
+{
+	int		 len, want;
+
+	while (p[*pos] == ' ' || p[*pos] == '\t')
+		(*pos)++;
+
+	/* Arguments are enclosed in parentheses. */
+
+	len = 0;
+	if (p[*pos] == '(') {
+		(*pos)++;
+		while (p[*pos + len] != ')')
+			len++;
+	}
+
+	switch (key) {
+	case KEY_DELIM:
+		mandoc_msg(MANDOCERR_TBLOPT_EQN,
+		    ln, *pos, "%.*s", len, p + *pos);
+		want = 2;
+		break;
+	case KEY_TAB:
+		want = 1;
+		if (len == want)
+			tbl->opts.tab = p[*pos];
+		break;
+	case KEY_LINESIZE:
+		want = 0;
+		break;
+	case KEY_DPOINT:
+		want = 1;
+		if (len == want)
+			tbl->opts.decimal = p[*pos];
+		break;
+	default:
+		abort();
+	}
+
+	if (len == 0)
+		mandoc_msg(MANDOCERR_TBLOPT_NOARG, ln, *pos,
+		    "%s", keys[key].name);
+	else if (want && len != want)
+		mandoc_msg(MANDOCERR_TBLOPT_ARGSZ, ln, *pos,
+		    "%s want %d have %d", keys[key].name, want, len);
+
+	*pos += len;
+	if (p[*pos] == ')')
+		(*pos)++;
+}
+
+/*
+ * Parse one line of options up to the semicolon.
+ * Each option can be preceded by blanks and/or commas,
+ * and some options are followed by arguments.
+ */
+void
+tbl_option(struct tbl_node *tbl, int ln, const char *p, int *offs)
+{
+	int		 i, pos, len;
+
+	pos = *offs;
+	for (;;) {
+		while (p[pos] == ' ' || p[pos] == '\t' || p[pos] == ',')
+			pos++;
+
+		if (p[pos] == ';') {
+			*offs = pos + 1;
+			return;
+		}
+
+		/* Parse one option name. */
+
+		len = 0;
+		while (isalpha((unsigned char)p[pos + len]))
+			len++;
+
+		if (len == 0) {
+			mandoc_msg(MANDOCERR_TBLOPT_ALPHA,
+			    ln, pos, "%c", p[pos]);
+			pos++;
+			continue;
+		}
+
+		/* Look up the option name. */
+
+		i = 0;
+		while (i < KEY_MAXKEYS &&
+		    (strncasecmp(p + pos, keys[i].name, len) ||
+		     keys[i].name[len] != '\0'))
+			i++;
+
+		if (i == KEY_MAXKEYS) {
+			mandoc_msg(MANDOCERR_TBLOPT_BAD,
+			    ln, pos, "%.*s", len, p + pos);
+			pos += len;
+			continue;
+		}
+
+		/* Handle the option. */
+
+		pos += len;
+		if (keys[i].key)
+			tbl->opts.opts |= keys[i].key;
+		else
+			arg(tbl, ln, p, &pos, i);
+	}
+}
-- 
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