string-kit - npm Package Compare versions

Comparing version 0.14.3 to 0.15.0

lib/unicode.js

@@ -199,3 +199,3 @@ /*
 
-// Check if a character is a full-width char or not.
+// Check if a character is a full-width char or not
 unicode.isFullWidth = char => unicode.isFullWidthCodePoint( char.codePointAt( 0 ) ) ;
@@ -210,6 +210,7 @@
 	Check if a codepoint represent a full-width char or not.
-
-	Borrowed from Node.js source, from readline.js.
 */
 unicode.codePointWidth = code => {
+	// Assuming all emoji are wide here
+	if ( unicode.isEmojiCodePoint( code ) ) { return 2 ; }
+
 	// Code points are derived from:
@@ -219,29 +220,30 @@ // http://www.unicode.org/Public/UNIDATA/EastAsianWidth.txt
 		code <= 0x115f ||	// Hangul Jamo
-			0x2329 === code || // LEFT-POINTING ANGLE BRACKET
-			0x232a === code || // RIGHT-POINTING ANGLE BRACKET
-			// CJK Radicals Supplement .. Enclosed CJK Letters and Months
-			( 0x2e80 <= code && code <= 0x3247 && code !== 0x303f ) ||
-			// Enclosed CJK Letters and Months .. CJK Unified Ideographs Extension A
-			0x3250 <= code && code <= 0x4dbf ||
-			// CJK Unified Ideographs .. Yi Radicals
-			0x4e00 <= code && code <= 0xa4c6 ||
-			// Hangul Jamo Extended-A
-			0xa960 <= code && code <= 0xa97c ||
-			// Hangul Syllables
-			0xac00 <= code && code <= 0xd7a3 ||
-			// CJK Compatibility Ideographs
-			0xf900 <= code && code <= 0xfaff ||
-			// Vertical Forms
-			0xfe10 <= code && code <= 0xfe19 ||
-			// CJK Compatibility Forms .. Small Form Variants
-			0xfe30 <= code && code <= 0xfe6b ||
-			// Halfwidth and Fullwidth Forms
-			0xff01 <= code && code <= 0xff60 ||
-			0xffe0 <= code && code <= 0xffe6 ||
-			// Kana Supplement
-			0x1b000 <= code && code <= 0x1b001 ||
-			// Enclosed Ideographic Supplement
-			0x1f200 <= code && code <= 0x1f251 ||
-			// CJK Unified Ideographs Extension B .. Tertiary Ideographic Plane
-			0x20000 <= code && code <= 0x3fffd ) ) {
+		code === 0x2329 || // LEFT-POINTING ANGLE BRACKET
+		code === 0x232a || // RIGHT-POINTING ANGLE BRACKET
+		// CJK Radicals Supplement .. Enclosed CJK Letters and Months
+		( 0x2e80 <= code && code <= 0x3247 && code !== 0x303f ) ||
+		// Enclosed CJK Letters and Months .. CJK Unified Ideographs Extension A
+		( 0x3250 <= code && code <= 0x4dbf ) ||
+		// CJK Unified Ideographs .. Yi Radicals
+		( 0x4e00 <= code && code <= 0xa4c6 ) ||
+		// Hangul Jamo Extended-A
+		( 0xa960 <= code && code <= 0xa97c ) ||
+		// Hangul Syllables
+		( 0xac00 <= code && code <= 0xd7a3 ) ||
+		// CJK Compatibility Ideographs
+		( 0xf900 <= code && code <= 0xfaff ) ||
+		// Vertical Forms
+		( 0xfe10 <= code && code <= 0xfe19 ) ||
+		// CJK Compatibility Forms .. Small Form Variants
+		( 0xfe30 <= code && code <= 0xfe6b ) ||
+		// Halfwidth and Fullwidth Forms
+		( 0xff01 <= code && code <= 0xff60 ) ||
+		( 0xffe0 <= code && code <= 0xffe6 ) ||
+		// Kana Supplement
+		( 0x1b000 <= code && code <= 0x1b001 ) ||
+		// Enclosed Ideographic Supplement
+		( 0x1f200 <= code && code <= 0x1f251 ) ||
+		// CJK Unified Ideographs Extension B .. Tertiary Ideographic Plane
+		( 0x20000 <= code && code <= 0x3fffd )
+	) ) {
 		return 2 ;
@@ -266,1 +268,21 @@ }
 
+
+
+// Check if a character is an emoji or not
+unicode.isEmoji = char => unicode.isEmojiCodePoint( char.codePointAt( 0 ) ) ;
+
+// Some doc found here: https://stackoverflow.com/questions/30470079/emoji-value-range
+unicode.isEmojiCodePoint = code =>
+	// Miscellaneous symbols
+	( 0x2600 <= code && code <= 0x26ff ) ||
+	// Dingbats
+	( 0x2700 <= code && code <= 0x27bf ) ||
+	// Emoji
+	( 0x1f000 <= code && code <= 0x1f1ff ) ||
+	( 0x1f300 <= code && code <= 0x1f3fa ) ||
+	( 0x1f400 <= code && code <= 0x1faff ) ;
+
+// Emoji modifier (Fitzpatrick): https://en.wikipedia.org/wiki/Miscellaneous_Symbols_and_Pictographs#Emoji_modifiers
+unicode.isEmojiModifier = char => unicode.isEmojiModifierCodePoint( char.codePointAt( 0 ) ) ;
+unicode.isEmojiModifierCodePoint = code => 0x1f3fb <= code && code <= 0x1f3ff ;
+

package.json

 {
   "name": "string-kit",
-  "version": "0.14.3",
+  "version": "0.15.0",
   "engines": {
@@ -5,0 +5,0 @@ "node": ">=14.15.0"

test/unicode-test.js

@@ -171,2 +171,3 @@ /*
 	it( "unicode.isFullWidth() should return true if the char is full-width" , () => {
+		expect( string.unicode.isFullWidth( '…' ) ).to.be( false ) ;
 		expect( string.unicode.isFullWidth( 'a' ) ).to.be( false ) ;
@@ -178,2 +179,4 @@ expect( string.unicode.isFullWidth( 'aa' ) ).to.be( false ) ;
 		expect( string.unicode.isFullWidth( '䷆' ) ).to.be( false ) ;
+		expect( string.unicode.isFullWidth( '🔴' ) ).to.be( true ) ;
+		expect( string.unicode.isFullWidth( '😀' ) ).to.be( true ) ;
 
@@ -185,2 +188,12 @@ expect( string.unicode.isFullWidth( '＠＠' ) ).to.be( true ) ;
 
+	it( "unicode.isEmoji() should return true if the char is an emoji" , () => {
+		expect( string.unicode.isEmoji( 'a' ) ).to.be( false ) ;
+		expect( string.unicode.isEmoji( '＠' ) ).to.be( false ) ;
+		expect( string.unicode.isEmoji( '𝌆' ) ).to.be( false ) ;
+		expect( string.unicode.isEmoji( '備' ) ).to.be( false ) ;
+		expect( string.unicode.isEmoji( '䷆' ) ).to.be( false ) ;
+		expect( string.unicode.isEmoji( '🔴' ) ).to.be( true ) ;
+		expect( string.unicode.isEmoji( '😀' ) ).to.be( true ) ;
+	} ) ;
+
 	it( ".toFullWidth() should transform a character to its full-width variant, if it exist" , () => {
@@ -187,0 +200,0 @@ expect( string.unicode.toFullWidth( '@' ) ).to.be( '＠' ) ;

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