Rename hasSurrogatePairs() to hasSurrogatePair()

spec/stdlib/text-utils-spec.coffee

@@ -7,6 +7,12 @@ describe 'text utilities', ->
       expect(textUtils.getCharacterCount('a\uD835\uDF97b\uD835\uDF97c')).toBe 5
       expect(textUtils.getCharacterCount('\uD835\uDF97')).toBe 1
 
+  describe '.hasSurrogatePair(string)', ->
+    it 'returns true when the string contains a surrogate pair', ->
+      expect(textUtils.hasSurrogatePair('abc')).toBe false
+      expect(textUtils.hasSurrogatePair('a\uD835\uDF97b\uD835\uDF97c')).toBe true
+      expect(textUtils.hasSurrogatePair('\uD835\uDF97')).toBe true
+
   describe '.isSurrogatePair(string, index)', ->
     it 'returns true when the index is the start of a high/low surrogate pair', ->
       expect(textUtils.isSurrogatePair('a\uD835\uDF97b\uD835\uDF97c', 0)).toBe false

src/app/token.coffee

@@ -4,7 +4,7 @@ textUtils = require 'text-utils'
 module.exports =
 class Token
   value: null
-  hasSurrogatePairs: false
+  hasSurrogatePair: false
   scopes: null
   isAtomic: null
   isHardTab: null
@@ -14,7 +14,7 @@ class Token
   constructor: ({@value, @scopes, @isAtomic, @bufferDelta, @isHardTab}) ->
     @screenDelta = @value.length
     @bufferDelta ?= @screenDelta
-    @hasSurrogatePairs = textUtils.hasSurrogatePairs(@value)
+    @hasSurrogatePair = textUtils.hasSurrogatePair(@value)
 
   ### Public ###
 
@@ -30,7 +30,7 @@ class Token
     [new Token(value: value1, scopes: @scopes), new Token(value: value2, scopes: @scopes)]
 
   breakOutAtomicTokens: (tabLength, breakOutLeadingWhitespace) ->
-    if @hasSurrogatePairs
+    if @hasSurrogatePair
       outputTokens = []
 
       for token in @breakOutSurrogatePairs()

src/stdlib/text-utils.coffee

@@ -27,8 +27,7 @@ isSurrogatePair = (string, index) ->
 # Returns a {Number}.
 getCharacterCount = (string) ->
   count = string.length
-  for index in [0...string.length] when isSurrogatePair(string, index)
-    count--
+  count-- for index in [0...string.length] when isSurrogatePair(string, index)
   count
 
 # Does the given string contain at least one surrogate pair?
@@ -36,7 +35,7 @@ getCharacterCount = (string) ->
 # string - The {String} to check for the presence of surrogate pairs.
 #
 # Returns a {Boolean}.
-hasSurrogatePairs = (string) ->
+hasSurrogatePair = (string) ->
   string.length isnt getCharacterCount(string)
 
-module.exports = {getCharacterCount, isSurrogatePair, hasSurrogatePairs}
+module.exports = {getCharacterCount, isSurrogatePair, hasSurrogatePair}