Bug-fix in mdoc_argv.

Added some documentation to macro.c.
Version-up.

3 files changed, 22 insertions, 7 deletions

diff --git a/Makefile b/Makefile
index 7b2f0256..98f9257d 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 .SUFFIXES:	.html .sgml
 
-VERSION	= 1.4.7
-VDATE	= 9 March 2009
+VERSION	= 1.4.8
+VDATE	= 10 March 2009
 
 BINDIR		= $(PREFIX)/bin
 INCLUDEDIR	= $(PREFIX)/include
diff --git a/argv.c b/argv.c
index afed9b76..f90beffd 100644
--- a/argv.c
+++ b/argv.c
@@ -226,7 +226,7 @@ mdoc_argv(struct mdoc *mdoc, int line, int tok,
 		struct mdoc_arg **v, int *pos, char *buf)
 {
 	int		  i;
-	char		 *p;
+	char		 *p, sv;
 	struct mdoc_argv tmp;
 	struct mdoc_arg	 *arg;
 
@@ -251,8 +251,15 @@ mdoc_argv(struct mdoc *mdoc, int line, int tok,
 		(*pos)++;
 	}
 
-	if (buf[*pos])
+	/* 
+	 * XXX: save the nullified byte as we'll restore it if this
+	 * doesn't end up being a command after all.
+	 */
+
+	if (buf[*pos]) {
+		sv = buf[*pos];
 		buf[(*pos)++] = 0;
+	}
 
 	(void)memset(&tmp, 0, sizeof(struct mdoc_argv));
 	tmp.line = line;
@@ -265,6 +272,8 @@ mdoc_argv(struct mdoc *mdoc, int line, int tok,
 	 */
 
 	if (MDOC_ARG_MAX == (tmp.arg = argv_a2arg(tok, p))) {
+		/* Restore saved byte. */
+		buf[*pos - 1] = sv;
 		if ( ! pwarn(mdoc, line, i, WARGVPARM))
 			return(ARGV_ERROR);
 		return(ARGV_WORD);
@@ -575,7 +584,7 @@ args(struct mdoc *mdoc, int line,
 
 			return(ARGS_WORD);
 		} 
-
+		
 		/* Do non-tabsep look-ahead here. */
 		
 		if ( ! (ARGS_TABSEP & fl))
diff --git a/macro.c b/macro.c
index 201f03d6..378dcef8 100644
--- a/macro.c
+++ b/macro.c
@@ -30,6 +30,8 @@
  * macro. 
  */
 
+/* FIXME: .Fl, .Ar, .Cd handling of `|'. */
+
 static int	  macro_obsolete(MACRO_PROT_ARGS);
 static int	  macro_constant(MACRO_PROT_ARGS);
 static int	  macro_constant_scoped(MACRO_PROT_ARGS);
@@ -798,7 +800,7 @@ macro_text(MACRO_PROT_ARGS)
 	for (;;) {
 		la = *pos;
 		w = mdoc_args(mdoc, line, pos, buf, tok, &p);
-		assert(ARGS_PHRASE != c);
+		assert(ARGS_PHRASE != w);
 
 		if (ARGS_ERROR == w)
 			return(0);
@@ -807,9 +809,13 @@ macro_text(MACRO_PROT_ARGS)
 		if (ARGS_PUNCT == w)
 			break;
 
+		/* Quoted words shouldn't be looked-up. */
+
 		c = ARGS_QWORD == w ? MDOC_MAX :
 			lookup(mdoc, line, la, tok, p);
 
+		/* MDOC_MAX (not a macro) or -1 (error). */
+
 		if (MDOC_MAX != c && -1 != c) {
 			if (0 == lastpunct && ! rewind_elem(mdoc, tok))
 				return(0);
@@ -822,7 +828,7 @@ macro_text(MACRO_PROT_ARGS)
 		} else if (-1 == c)
 			return(0);
 
-		/* FIXME: .Fl and .Ar handling of `|'. */
+		/* Non-quote-enclosed punctuation. */
 
 		if (ARGS_QWORD != w && mdoc_isdelim(p)) {
 			if (0 == lastpunct && ! rewind_elem(mdoc, tok))