From d4eecf1476f28e831c1b9420b4f5cbae06d4e990 Mon Sep 17 00:00:00 2001
From: "Rong Sen Ng (motss)" <wes.ngrongsen@gmail.com>
Date: Sun, 14 Jul 2019 01:42:10 +0800
Subject: [PATCH] =?UTF-8?q?=F0=9F=90=9B=20Fix=20RegExp=20bug=20when=20norm?=
 =?UTF-8?q?alizing=20repeated=20characters=20in=20a=20string?=
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---
 normalize_diacritics/helpers.ts        |  2 +-
 normalize_diacritics/normalize.test.ts | 10 +++++++++-
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/normalize_diacritics/helpers.ts b/normalize_diacritics/helpers.ts
index 223c378..b062639 100644
--- a/normalize_diacritics/helpers.ts
+++ b/normalize_diacritics/helpers.ts
@@ -244,6 +244,6 @@ export const diacritics: Diacritics[] = [
 // tslint:enable:max-line-length
 
 export function removeDiacritics(s: string) {
-  const normalized = diacritics.find(n => n.diacritics.test(s));
+  const normalized = diacritics.find(n => (new RegExp(n.diacritics)).test(s));
   return null == normalized ? s : normalized.letter;
 }
diff --git a/normalize_diacritics/normalize.test.ts b/normalize_diacritics/normalize.test.ts
index 4d62441..46a7e35 100644
--- a/normalize_diacritics/normalize.test.ts
+++ b/normalize_diacritics/normalize.test.ts
@@ -56,11 +56,19 @@ async function willNormalizeNonAccentedCharacter() {
   assertStrictEq(await normalize("\u00d8"), "O");
 }
 
+async function willNormalizeRepeatedCharacters() {
+  assertStrictEq(await normalize("éééé"), "eeee");
+  assertStrictEq(await normalize("åååå"), "aaaa");
+  assertStrictEq(await normalize("éåéåéåéå"), "eaeaeaea");
+  assertStrictEq(await normalize("åéåéåéåé"), "aeaeaeae");
+}
+
 prepareTest([
   willSkipNormalizationForEmptyCharacter,
   willNormalizeSingleCharacter,
   willNormalizeAccentedCharacters,
   willNormalizeAccentedCharactersWithoutUsingNativeFunction,
   willReturnOriginalCharacterWhenNoMatchFound,
-  willNormalizeNonAccentedCharacter
+  willNormalizeNonAccentedCharacter,
+  willNormalizeRepeatedCharacters,
 ], "normalize_diacritics");