From d195cc757c312692b34bf011ff1de75db4b6ca98 Mon Sep 17 00:00:00 2001
From: Garrett D'Amore <garrett@damore.org>
Date: Mon, 18 Mar 2019 23:41:32 -0700
Subject: [PATCH] fixes #264 tcell breaks grapheme clusters

---
 _demos/unicode.go |  6 +++---
 cell.go           | 18 ++----------------
 2 files changed, 5 insertions(+), 19 deletions(-)

diff --git a/_demos/unicode.go b/_demos/unicode.go
index ee046fb..15cc8aa 100644
--- a/_demos/unicode.go
+++ b/_demos/unicode.go
@@ -1,4 +1,4 @@
-// Copyright 2015 The TCell Authors
+// Copyright 2019 The TCell Authors
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use file except in compliance with the License.
@@ -22,7 +22,7 @@ import (
 
 	"github.com/gdamore/tcell"
 	"github.com/gdamore/tcell/encoding"
-	"github.com/mattn/go-runewidth"
+	runewidth "github.com/mattn/go-runewidth"
 )
 
 var row = 0
@@ -127,7 +127,7 @@ func main() {
 	putln(s, "ZWJ:       \U0001f9db\u200d\u2640 (female vampire)")
 	putln(s, "ZWJ:       \U0001f9db\u200d\u2642 (male vampire)")
 	putln(s, "Family:    \U0001f469\u200d\U0001f467\u200d\U0001f467 (woman girl girl)\n")
-
+	putln(s, "Region:    \U0001f1fa\U0001f1f8 (USA! USA!)\n")
 	putln(s, "")
 	putln(s, "Box:")
 	putln(s, string([]rune{
diff --git a/cell.go b/cell.go
index 957b62f..c7f8f1a 100644
--- a/cell.go
+++ b/cell.go
@@ -1,4 +1,4 @@
-// Copyright 2015 The TCell Authors
+// Copyright 2019 The TCell Authors
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use file except in compliance with the License.
@@ -15,7 +15,7 @@
 package tcell
 
 import (
-	"github.com/mattn/go-runewidth"
+	runewidth "github.com/mattn/go-runewidth"
 )
 
 type cell struct {
@@ -49,20 +49,6 @@ func (cb *CellBuffer) SetContent(x int, y int,
 		c := &cb.cells[(y*cb.w)+x]
 
 		c.currComb = append([]rune{}, combc...)
-		i := 0
-		for i < len(c.currComb) {
-			r := c.currComb[i]
-			if r == '\u200d' {
-				i += 2
-				continue
-			}
-			if runewidth.RuneWidth(r) != 0 {
-				// not a combining character, yank it
-				c.currComb = append(c.currComb[:i-1], c.currComb[i+1:]...)
-				continue
-			}
-			i++
-		}
 
 		if c.currMain != mainc {
 			c.width = runewidth.RuneWidth(mainc)