Expose a isCjkCharacter text utility

spec/text-utils-spec.coffee

@@ -74,3 +74,23 @@ describe 'text utilities', ->
       expect(textUtils.isKoreanCharacter("ㄼ")).toBe(true)
 
       expect(textUtils.isKoreanCharacter("O")).toBe(false)
+
+  describe ".isCjkCharacter(character)", ->
+    it "returns true when the character is either a korean, half-width or double-width character", ->
+      expect(textUtils.isCjkCharacter("我")).toBe(true)
+      expect(textUtils.isCjkCharacter("私")).toBe(true)
+      expect(textUtils.isCjkCharacter("Ｂ")).toBe(true)
+      expect(textUtils.isCjkCharacter("，")).toBe(true)
+      expect(textUtils.isCjkCharacter("￠")).toBe(true)
+      expect(textUtils.isCjkCharacter("ﾊ")).toBe(true)
+      expect(textUtils.isCjkCharacter("ﾋ")).toBe(true)
+      expect(textUtils.isCjkCharacter("ﾬ")).toBe(true)
+      expect(textUtils.isCjkCharacter("￭")).toBe(true)
+      expect(textUtils.isCjkCharacter("우")).toBe(true)
+      expect(textUtils.isCjkCharacter("가")).toBe(true)
+      expect(textUtils.isCjkCharacter("ㅢ")).toBe(true)
+      expect(textUtils.isCjkCharacter("ㄼ")).toBe(true)
+
+      expect(textUtils.isDoubleWidthCharacter("a")).toBe(false)
+      expect(textUtils.isDoubleWidthCharacter("O")).toBe(false)
+      expect(textUtils.isDoubleWidthCharacter("z")).toBe(false)

src/text-utils.coffee

@@ -89,6 +89,11 @@ isKoreanCharacter = (character) ->
   0xA960 <= charCode <= 0xA97F or
   0xD7B0 <= charCode <= 0xD7FF
 
+isCjkCharacter = (character) ->
+  isDoubleWidthCharacter(character) or
+  isHalfWidthCharacter(character) or
+  isKoreanCharacter(character)
+
 # Does the given string contain at least surrogate pair, variation sequence,
 # or combined character?
 #
@@ -102,4 +107,4 @@ hasPairedCharacter = (string) ->
     index++
   false
 
-module.exports = {isPairedCharacter, hasPairedCharacter, isDoubleWidthCharacter, isHalfWidthCharacter, isKoreanCharacter}
+module.exports = {isPairedCharacter, hasPairedCharacter, isDoubleWidthCharacter, isHalfWidthCharacter, isKoreanCharacter, isCjkCharacter}