From e1161d8a3fbeac9d7533b7553a92850ee8c3e809 Mon Sep 17 00:00:00 2001
From: Kristaps Dzonsons <kristaps@bsd.lv>
Date: Mon, 28 Mar 2011 23:52:13 +0000
Subject: Have libman and libmdoc use mandoc_getcontrol() to determine whether
 a macro has been invoked.  libroff is next.

---
 mandoc.c | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

(limited to 'mandoc.c')

diff --git a/mandoc.c b/mandoc.c
index 52ec4017..3d1d0f99 100644
--- a/mandoc.c
+++ b/mandoc.c
@@ -506,3 +506,28 @@ mandoc_hyph(const char *start, const char *c)
 	return(1);
 }
 
+/*
+ * Find out whether a line is a macro line or not.  If it is, adjust the
+ * current position and return one; if it isn't, return zero and don't
+ * change the current position.
+ */
+int
+mandoc_getcontrol(const char *cp, int *ppos)
+{
+	int		pos;
+
+	pos = *ppos;
+
+	if ('\\' == cp[pos] && '.' == cp[pos + 1])
+		pos += 2;
+	else if ('.' == cp[pos] || '\'' == cp[pos])
+		pos++;
+	else
+		return(0);
+
+	while (' ' == cp[pos] || '\t' == cp[pos])
+		pos++;
+
+	*ppos = pos;
+	return(1);
+}
-- 
cgit