===================================================================
RCS file: /cvs/texi2mdoc/util.c,v
retrieving revision 1.18
retrieving revision 1.19
diff -u -p -r1.18 -r1.19
--- texi2mdoc/util.c	2015/02/28 08:41:59	1.18
+++ texi2mdoc/util.c	2015/02/28 13:16:44	1.19
@@ -1,4 +1,4 @@
-/*	$Id: util.c,v 1.18 2015/02/28 08:41:59 kristaps Exp $ */
+/*	$Id: util.c,v 1.19 2015/02/28 13:16:44 kristaps Exp $ */
 /*
  * Copyright (c) 2015 Kristaps Dzonsons <kristaps@bsd.lv>
  *
@@ -591,7 +591,7 @@ parseword(struct texi *p, size_t *pos, char extra)
  * index after the command name.
  */
 enum texicmd
-texicmd(struct texi *p, size_t pos, size_t *end, struct teximacro **macro)
+texicmd(const struct texi *p, size_t pos, size_t *end, struct teximacro **macro)
 {
 	size_t	 i, len, toksz;
 
@@ -824,6 +824,23 @@ parseeoln(struct texi *p, size_t *pos)
 
 	if (*pos < BUFSZ(p) && '\n' == BUF(p)[*pos])
 		advance(p, pos);
+}
+
+/*
+ * Peek to see if there's a command after subsequent whitespace.
+ * If so, return the macro identifier.
+ * This DOES NOT work with user-defined macros.
+ */
+enum texicmd
+peekcmd(const struct texi *p, size_t pos)
+{
+	size_t		end;
+
+	while (pos < BUFSZ(p) && ismspace(BUF(p)[pos]))
+		pos++;
+	if (pos == BUFSZ(p) || '@' != BUF(p)[pos])
+		return(TEXICMD__MAX);
+	return(texicmd(p, pos, &end, NULL));
 }
 
 /*