src/vs/editor/common/core/wordCharacterClassifier.ts/WordCharacterClassifier/constructor
class WordCharacterClassifier:	constructor(wordSeparators: string) {
		super(WordCharacterClass.Regular);

		for (let i = 0, len = wordSeparators.length; i < len; i++) {
			this.set(wordSeparators.charCodeAt(i), WordCharacterClass.WordSeparator);
		}

		this.set(CharCode.Space, WordCharacterClass.Whitespace);
		this.set(CharCode.Tab, WordCharacterClass.Whitespace);
	}