*** empty log message ***

1 files changed, 256 insertions, 0 deletions

diff --git a/argv.c b/argv.c
new file mode 100644
index 00000000..1af8ce65
--- /dev/null
+++ b/argv.c
@@ -0,0 +1,256 @@
+/* $Id$ */
+/*
+ * Copyright (c) 2008 Kristaps Dzonsons <kristaps@kth.se>
+ *
+ * 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 <assert.h>
+#include <ctype.h>
+#include <err.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "private.h"
+
+
+static	int		 parse_next(struct mdoc *, int, 
+				int *, char *, char **);
+
+
+static int
+parse_next(struct mdoc *mdoc, int tok, 
+		int *pos, char *buf, char **v)
+{
+
+	if (0 == buf[*pos])
+		return(0);
+
+	if ('\"' != buf[*pos]) {
+		*v = &buf[*pos];
+
+		while (buf[*pos] && ! isspace(buf[*pos]))
+			(*pos)++;
+
+		if (0 == buf[*pos])
+			return(1);
+
+		buf[(*pos)++] = 0;
+		if (0 == buf[*pos])
+			return(1);
+
+		while (buf[*pos] && isspace(buf[*pos]))
+			(*pos)++;
+
+		if (buf[*pos])
+			return(1);
+
+		if ( ! mdoc_warn(mdoc, tok, *pos, WARN_SYNTAX_WS_EOLN))
+			return(-1);
+		return(1);
+	} 
+
+	if ('-' == buf[*pos]) 
+		if ( ! mdoc_warn(mdoc, tok, *pos, WARN_SYNTAX_ARGLIKE))
+			return(-1);
+
+	*v = &buf[++(*pos)];
+
+	while (buf[*pos] && '\"' != buf[*pos])
+		(*pos)++;
+
+	if (0 == buf[*pos]) {
+		(void)mdoc_err(mdoc, tok, *pos, ERR_SYNTAX_UNQUOTE);
+		return(-1);
+	}
+
+	buf[(*pos)++] = 0;
+	if (0 == buf[*pos])
+		return(1);
+
+	while (buf[*pos] && isspace(buf[*pos]))
+		(*pos)++;
+
+	if (buf[*pos])
+		return(1);
+
+	if ( ! mdoc_warn(mdoc, tok, *pos, WARN_SYNTAX_WS_EOLN))
+		return(-1);
+	return(1);
+}
+
+
+int
+mdoc_argv_lookup(int tok, const char *argv)
+{
+
+	switch (tok) {
+	case (MDOC_Bl):
+		if (xstrcmp(argv, "ragged"))
+			return(MDOC_Ragged);
+		else if (xstrcmp(argv, "unfilled"))
+			return(MDOC_Unfilled);
+		else if (xstrcmp(argv, "literal"))
+			return(MDOC_Literal);
+		else if (xstrcmp(argv, "file"))
+			return(MDOC_File);
+		else if (xstrcmp(argv, "offset"))
+			return(MDOC_Offset);
+		else if (xstrcmp(argv, "bullet"))
+			return(MDOC_Bullet);
+		else if (xstrcmp(argv, "dash"))
+			return(MDOC_Dash);
+		else if (xstrcmp(argv, "hyphen"))
+			return(MDOC_Hyphen);
+		else if (xstrcmp(argv, "item"))
+			return(MDOC_Item);
+		else if (xstrcmp(argv, "enum"))
+			return(MDOC_Enum);
+		else if (xstrcmp(argv, "tag"))
+			return(MDOC_Tag);
+		else if (xstrcmp(argv, "diag"))
+			return(MDOC_Diag);
+		else if (xstrcmp(argv, "hang"))
+			return(MDOC_Hang);
+		else if (xstrcmp(argv, "ohang"))
+			return(MDOC_Ohang);
+		else if (xstrcmp(argv, "inset"))
+			return(MDOC_Inset);
+		else if (xstrcmp(argv, "column"))
+			return(MDOC_Column);
+		else if (xstrcmp(argv, "width"))
+			return(MDOC_Width);
+		else if (xstrcmp(argv, "compact"))
+			return(MDOC_Compact);
+
+		break;
+	default:
+		abort();
+		/* NOTREACHED */
+	}
+
+	return(MDOC_ARG_MAX);
+}
+
+
+int
+mdoc_argv_parse(struct mdoc *mdoc, int tok, int arg, 
+		struct mdoc_arg *v, int *pos, char *buf)
+{
+	char		*p;
+	int		 c, ppos, i;
+
+	v->arg = arg;
+	ppos = *pos;
+
+	switch (arg) {
+	case(MDOC_Compact):
+		/* FALLTHROUGH */
+	case(MDOC_Ragged):
+		/* FALLTHROUGH */
+	case(MDOC_Unfilled):
+		/* FALLTHROUGH */
+	case(MDOC_Literal):
+		/* FALLTHROUGH */
+	case(MDOC_File):
+		/* FALLTHROUGH */
+	case(MDOC_Bullet):
+		/* FALLTHROUGH */
+	case(MDOC_Dash):
+		/* FALLTHROUGH */
+	case(MDOC_Hyphen):
+		/* FALLTHROUGH */
+	case(MDOC_Item):
+		/* FALLTHROUGH */
+	case(MDOC_Enum):
+		/* FALLTHROUGH */
+	case(MDOC_Tag):
+		/* FALLTHROUGH */
+	case(MDOC_Diag):
+		/* FALLTHROUGH */
+	case(MDOC_Hang):
+		/* FALLTHROUGH */
+	case(MDOC_Ohang):
+		/* FALLTHROUGH */
+	case(MDOC_Inset):
+		v->sz = 0;
+		v->value = NULL;
+		break;
+
+	case(MDOC_Width):
+		/* FALLTHROUGH */
+	case(MDOC_Offset):
+		/*
+		 * This has a single value for an argument.
+		 */
+		c = parse_next(mdoc, tok, pos, buf, &p);
+		if (-1 == c)
+			return(0);
+		else if (0 == c)
+			return(mdoc_err(mdoc, tok, ppos, ERR_SYNTAX_ARGVAL));
+			
+		v->sz = 1;
+		v->value = xcalloc(1, sizeof(char *));
+		v->value[0] = p;
+		break;
+
+	case(MDOC_Column):
+		/*
+		 * This has several value for a single argument.  We
+		 * pre-allocate a pointer array and don't let it exceed
+		 * this size.
+		 */
+		v->sz = 0;
+		v->value = xcalloc(MDOC_LINEARG_MAX, sizeof(char *));
+		for (i = 0; i < MDOC_LINEARG_MAX; i++) {
+			c = parse_next(mdoc, tok, pos, buf, &p);
+			if (-1 == c) {
+				free(v->value);
+				return(0);
+			} else if (0 == c)
+				break;
+			v->value[i] = p;
+		}
+		if (0 == i) {
+			free(v->value);
+			return(mdoc_err(mdoc, tok, ppos, ERR_SYNTAX_ARGVAL));
+		} else if (MDOC_LINEARG_MAX == i)
+			return(mdoc_err(mdoc, tok, ppos, ERR_SYNTAX_ARGMANY));
+
+		v->sz = i;
+		break;
+	default:
+		abort();
+		/* NOTREACHED */
+	}
+
+	return(1);
+}
+
+
+void
+mdoc_argv_free(int sz, struct mdoc_arg *arg)
+{
+	int		 i;
+
+	for (i = 0; i < sz; i++) {
+		if (0 == arg[i].sz) {
+			assert(NULL == arg[i].value);
+			continue;
+		}
+		assert(arg[i].value);
+		free(arg[i].value);
+	}
+}