From dd848e3dab803670ffc26f72ed43028193372ccf Mon Sep 17 00:00:00 2001
From: Fatih Arslan <ftharsln@gmail.com>
Date: Mon, 5 Oct 2015 13:03:46 +0300
Subject: [PATCH] scanner: peek instead of next.

---
 scanner/scanner.go | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/scanner/scanner.go b/scanner/scanner.go
index 8fe0651..1a8a60c 100644
--- a/scanner/scanner.go
+++ b/scanner/scanner.go
@@ -212,11 +212,8 @@ func (s *Scanner) scanMantissa(ch rune) rune {
 
 func (s *Scanner) scanFraction(ch rune) rune {
 	if ch == '.' {
-		ch = s.next()
-		msCh := s.scanMantissa(ch)
-		if msCh == ch {
-			s.unread()
-		}
+		ch = s.peek() // we peek just to see if we can move forward
+		ch = s.scanMantissa(ch)
 	}
 	return ch
 }