From 49d1574575f4e351c481de6e9511631eb96d3bdb Mon Sep 17 00:00:00 2001
From: Ted Unangst <tedu@tedunangst.com>
Date: Thu, 25 Apr 2019 10:59:57 -0400
Subject: [PATCH] only need to dupe string for zalgo if zerowidth present

---
 skulduggery.go | 29 ++++++++++++++++++++---------
 1 file changed, 20 insertions(+), 9 deletions(-)

diff --git a/skulduggery.go b/skulduggery.go
index fded8c3..d39f74f 100644
--- a/skulduggery.go
+++ b/skulduggery.go
@@ -70,19 +70,30 @@ func unpucker(s string) string {
 		return string(x)
 	}
 	s = re_alltheshitz.ReplaceAllStringFunc(s, fixer)
-	x := make([]byte, 0, len(s))
+
 	zw := false
 	for _, c := range s {
 		if runewidth.RuneWidth(c) == 0 {
-			if zw {
-				continue
-			}
 			zw = true
-		} else {
-			zw = false
+			break
 		}
-		q := string(c)
-		x = append(x, []byte(q)...)
 	}
-	return string(x)
+	if zw {
+		x := make([]byte, 0, len(s))
+		zw = false
+		for _, c := range s {
+			if runewidth.RuneWidth(c) == 0 {
+				if zw {
+					continue
+				}
+				zw = true
+			} else {
+				zw = false
+			}
+			q := string(c)
+			x = append(x, []byte(q)...)
+		}
+		return string(x)
+	}
+	return s
 }