feat: add allowed non-standard text

packages/moderation/src/validators/non-standard-text/index.ts

@@ -50,6 +50,24 @@ const FANCY_RANGES: ReadonlyArray<readonly [number, number]> = [
 	[0x1f100, 0x1f1ad],
 ]
 
+const ALLOWED_FANCY_CODE_POINTS = new Set([
+	0x02d6,
+	0x02d7,
+	0x02d8,
+	0x02d9,
+	0x02da,
+	0x02db,
+	0x02dc,
+	0x02dd,
+	0x207a,
+	0x207b,
+	0x208a,
+	0x208b,
+	0x2120,
+	0x2122,
+	0x2139,
+])
+
 const MARK_PATTERN = /\p{M}/u
 const CONTROL_PATTERN = /\p{Cc}/u
 const FORMAT_PATTERN = /\p{Cf}/u
@@ -261,7 +279,7 @@ export function validateNonStandardText(
 		hasBaseCharacter = !/^\s$/u.test(character)
 
 		if (
-			codePoint !== 0x2122 &&
+			!ALLOWED_FANCY_CODE_POINTS.has(codePoint) &&
 			isInRanges(codePoint, FANCY_RANGES) &&
 			!isPresentedAsEmoji(characters, characterIndex)
 		) {

packages/moderation/src/validators/non-standard-text/tests.ts

@@ -61,6 +61,10 @@ test('detects common fancy alphabets and presentation forms', () => {
 	)
 })
 
+test('allows selected decorative characters from fancy ranges', () => {
+	assert.equal(validateNonStandardText('˖˗˘˙˚˛˜˝⁺⁻₊₋℠ℹ⊹✦').valid, true)
+})
+
 test('allows ordinary emoji and valid emoji joiner sequences', () => {
 	assert.equal(validateNonStandardText('Hello 👋🏽').valid, true)
 	assert.equal(validateNonStandardText('Family: 👨‍👩‍👧‍👦').valid, true)