fix: recognize exact banned words before stripping affixes

CHANGELOG.md

@@ -26,6 +26,7 @@
 - Release publishing now validates the tag/version and runs formatting, lint, and tests before publishing the verified build.
 
 ### Fixed
+- Recognize exact banned-word matches before stripping affixes, so listed words such as `فلسطين` are obfuscated while retaining existing affix-based similarity matching.
 - Calculate `similarityScore` lengths and edit distance after lowercasing so Unicode case expansion cannot produce negative scores or incorrect similarity ratios.
 - Prevent invalid levels from hanging `tashfeer`, `tashfeerBannedWords`, and `toOldArabicAndTashfeerBannedWords`: non-number values throw `TypeError`; negative, fractional, and non-finite numbers throw `RangeError`. Random-index generation handles empty input and caps the requested count at the word length ([#35](https://github.com/Seen-Arabic/Arabic-Services-JavaScript/issues/35), [PR #36](https://github.com/Seen-Arabic/Arabic-Services-JavaScript/pull/36)).
 - Attempt browser bundle uploads after a successful build even if npm publishing fails ([commit 598035a](https://github.com/Seen-Arabic/Arabic-Services-JavaScript/commit/598035a)).

src/scripts/tashfeer.ts

@@ -192,7 +192,7 @@ function bannedSimilarityRatio(string: string): number {
  */
 function checkIfBannedWord(string: string): boolean {
 	const std_ratio = 70;
-	return bannedSimilarityRatio(removeArabicAffixes(string)) >= std_ratio;
+	return BANNED_WORDS.includes(string) || bannedSimilarityRatio(removeArabicAffixes(string)) >= std_ratio;
 }
 
 /**

tests/scripts.test.ts

@@ -335,6 +335,14 @@ describe('#similarityScore', () => {
 });
 
 describe('#tashfeerBannedWords', () => {
+	it.each(['فلسطين', 'غزة', 'حرية'])('should obfuscate %s while preserving surrounding non-banned words', (word) => {
+		const sentence = `هذه ${word} جميلة`;
+		const obfuscated = ArabicServices.tashfeerBannedWords(sentence);
+		expect(obfuscated).not.toContain(word);
+		expect(obfuscated.startsWith('هذه ')).toBe(true);
+		expect(obfuscated.endsWith(' جميلة')).toBe(true);
+	});
+
 	it('should perform tashfeer obfuscation on banned words only', () => {
 		const sentence = 'جيش العدو يقتل الأطفال';
 		const result = ArabicServices.tashfeerBannedWords(sentence);