feat: add support for special characters and UTF8 characters in selectors

Author: fczbkk

src/css-selector-generator.coffee

@@ -32,6 +32,8 @@ class CssSelectorGenerator
   sanitizeItem: (item) ->
     escape item
       .replace /\%/g, '\\'
+      # special characters *+-./
+      .replace /\*\+\-\.\//g, '\\$&'
 
   validateId: (id) ->
     # ID must exist

test/src/css-selector-generator.spec.coffee

@@ -111,6 +111,16 @@ describe 'CSS Selector Generator', ->
       it 'should sanitize ID selector', ->
         expect(x.sanitizeItem 'aaa:bbb').toEqual 'aaa\\3Abbb'
 
+      it 'should escape special characters in ID selector', ->
+        expect(x.sanitizeItem 'aaa*bbb').toEqual 'aaa\*bbb'
+        expect(x.sanitizeItem 'aaa+bbb').toEqual 'aaa\+bbb'
+        expect(x.sanitizeItem 'aaa-bbb').toEqual 'aaa\-bbb'
+        expect(x.sanitizeItem 'aaa.bbb').toEqual 'aaa\.bbb'
+        expect(x.sanitizeItem 'aaa/bbb').toEqual 'aaa\/bbb'
+
+      it 'should escape ID selector containing UTF8 characters', ->
+        expect(x.sanitizeItem 'aaa✓bbb').toEqual 'aaa\\u2713bbb'
+
       it 'should ignore ID attribute begining with a number', ->
         expect(x.validateId '111aaa').toBe false