Adding code to render charsets

src/js/parser/javascript.js

@@ -6,6 +6,9 @@ import Match from './javascript/match.js';
 import MatchFragment from './javascript/match_fragment.js';
 import Subexp from './javascript/subexp.js';
 import Charset from './javascript/charset.js';
+import CharsetLiteral from './javascript/charset_literal.js';
+import CharsetEscape from './javascript/charset_escape.js';
+import CharsetRange from './javascript/charset_range.js';
 import Literal from './javascript/literal.js';
 import Escape from './javascript/escape.js';
 import AnyCharacter from './javascript/any_character.js';
@@ -21,6 +24,9 @@ parser.Parser.Match = Match;
 parser.Parser.MatchFragment = MatchFragment;
 parser.Parser.Subexp = Subexp;
 parser.Parser.Charset = Charset;
+parser.Parser.CharsetLiteral = CharsetLiteral;
+parser.Parser.CharsetEscape = CharsetEscape;
+parser.Parser.CharsetRange = CharsetRange;
 parser.Parser.Literal = Literal;
 parser.Parser.Escape = Escape;
 parser.Parser.AnyCharacter = AnyCharacter;