feat: text censor (service updated to match censor patter instead of spliting input)

src/pages/tools/string/censor/service.ts

@@ -4,46 +4,46 @@ export function censorText(input: string, options: InitialValuesType): string {
   if (!input) return '';
   if (!options.wordsToCensor) return input;
 
-  if (options.censoredBySymbol && !isSymbol(options.censorSymbol[0])) {
+  if (options.censoredBySymbol && !isSymbol(options.censorSymbol)) {
     throw new Error('Enter a valid censor symbol (non-alphanumeric or emoji)');
   }
 
-  // Split text into words and punctuation using Unicode-aware regex
-  const regex = /([\s\p{P}])/gu;
-  const textWords = input.split(regex);
-
-  // Normalize censor words (trim and lowercase)
   const wordsToCensor = options.wordsToCensor
     .split('\n')
-    .map((word) => word.trim().toLowerCase())
+    .map((word) => word.trim())
     .filter((word) => word.length > 0);
 
-  const censoredText = textWords
-    .map((word) => {
-      const lowerWord = word.toLowerCase();
-      if (wordsToCensor.includes(lowerWord)) {
-        if (options.censoredBySymbol) {
-          return options.eachLetter
-            ? options.censorSymbol.repeat(word.length)
-            : options.censorSymbol;
-        } else {
-          return options.censorWord;
-        }
-      }
-      return word;
-    })
-    .join('');
+  let censoredText = input;
+
+  for (const word of wordsToCensor) {
+    const escapedWord = escapeRegex(word);
+    const pattern = new RegExp(`\\b${escapedWord}\\b`, 'giu');
+
+    const replacement = options.censoredBySymbol
+      ? options.eachLetter
+        ? options.censorSymbol.repeat(word.length)
+        : options.censorSymbol
+      : options.censorWord;
+
+    censoredText = censoredText.replace(pattern, replacement);
+  }
 
   return censoredText;
 }
 
 /**
- * Determines if a character is a symbol or emoji.
- * Accepts single characters that are non-letter and non-number,
- * or extended pictographic characters (like emojis).
+ * Escapes RegExp special characters in a string
+ */
+function escapeRegex(str: string): string {
+  return str.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
+}
+
+/**
+ * Determines if a string is a valid symbol or emoji (multi-codepoint supported).
  */
 function isSymbol(input: string): boolean {
   return (
-    /^[^\p{L}\p{N}]+$/u.test(input) || /\p{Extended_Pictographic}/u.test(input)
+    /^[^\p{L}\p{N}]+$/u.test(input) || // Not a letter or number
+    /\p{Extended_Pictographic}/u.test(input) // Emoji or pictographic symbol
   );
 }