From 39aa01718ba7c8a0281614117220d748a9edd4f2 Mon Sep 17 00:00:00 2001
From: Ali Gholami Rudi <ali@rudi.ir>
Date: Mon, 20 Jul 2009 11:17:09 +0430
Subject: [PATCH] vt102: make readutf8() simpler

---
 vt102.c | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/vt102.c b/vt102.c
index a69088f..dc2607e 100644
--- a/vt102.c
+++ b/vt102.c
@@ -14,16 +14,12 @@ static void modeseq(int c, int set);
 static int readutf8(int c)
 {
 	int result;
-	int l = 0;
-	int z = 0x20;
-	int m = 0x1f;
+	int l = 1;
 	if (~c & 0xc0)
 		return c;
-	while (++l < 6 && c & z) {
-		m >>= 1;
-		z >>= 1;
-	}
-	result = m & c;
+	while (l < 6 && c & (0x40 >> l))
+		l++;
+	result = (0x3f >> l) & c;
 	while (l--)
 		result = (result << 6) | (readpty() & 0x3f);
 	return result;
-- 
2.11.4.GIT