Significant overhaul in libman. Macros are now block- and line-scoped (with

next-line scope extensions possible).  man.7 reflects block and line scoping,
and also includes a REFERENCE section that will be used as a template for the
big mdoc reference.  Many fixes in next-line behaviour for both inline and
block macros.  Added some macros for compatibility (from me.7).  Corrected
quoted-literal handling for libman.

1 files changed, 99 insertions, 0 deletions

diff --git a/man_argv.c b/man_argv.c
new file mode 100644
index 00000000..1b72aa3b
--- /dev/null
+++ b/man_argv.c
@@ -0,0 +1,99 @@
+/*	$Id: man_argv.c,v 1.1 2009/08/13 11:45:29 kristaps Exp $ */
+/*
+ * Copyright (c) 2008, 2009 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 <sys/types.h>
+
+#include <assert.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "libman.h"
+
+
+int
+man_args(struct man *m, int line, int *pos, char *buf, char **v)
+{
+
+	assert(*pos);
+	assert(' ' != buf[*pos]);
+
+	if (0 == buf[*pos])
+		return(ARGS_EOLN);
+
+	*v = &buf[*pos];
+
+	/* 
+	 * Process a quoted literal.  A quote begins with a double-quote
+	 * and ends with a double-quote NOT preceded by a double-quote.
+	 * Whitespace is NOT involved in literal termination.
+	 */
+
+	if ('\"' == buf[*pos]) {
+		*v = &buf[++(*pos)];
+
+		for ( ; buf[*pos]; (*pos)++) {
+			if ('\"' != buf[*pos])
+				continue;
+			if ('\"' != buf[*pos + 1])
+				break;
+			(*pos)++;
+		}
+
+		if (0 == buf[*pos]) {
+			if ( ! man_pwarn(m, line, *pos, WTQUOTE))
+				return(ARGS_ERROR);
+			return(ARGS_QWORD);
+		}
+
+		buf[(*pos)++] = 0;
+
+		if (0 == buf[*pos])
+			return(ARGS_QWORD);
+
+		while (' ' == buf[*pos])
+			(*pos)++;
+
+		if (0 == buf[*pos])
+			if ( ! man_pwarn(m, line, *pos, WTSPACE))
+				return(ARGS_ERROR);
+
+		return(ARGS_QWORD);
+	}
+
+	/* 
+	 * A non-quoted term progresses until either the end of line or
+	 * a non-escaped whitespace.
+	 */
+
+	for ( ; buf[*pos]; (*pos)++)
+		if (' ' == buf[*pos] && '\\' != buf[*pos - 1])
+			break;
+
+	if (0 == buf[*pos])
+		return(ARGS_WORD);
+
+	buf[(*pos)++] = 0;
+
+	while (' ' == buf[*pos])
+		(*pos)++;
+
+	if (0 == buf[*pos])
+		if ( ! man_pwarn(m, line, *pos, WTSPACE))
+			return(ARGS_ERROR);
+
+	return(ARGS_WORD);
+}
+