src/vs/workbench/contrib/codeEditor/browser/inspectEditorTokens/inspectEditorTokens.ts/renderTokenText
function renderTokenText(tokenText: string): string {
	if (tokenText.length > 40) {
		tokenText = tokenText.substr(0, 20) + '…' + tokenText.substr(tokenText.length - 20);
	}
	let result: string = '';
	for (let charIndex = 0, len = tokenText.length; charIndex < len; charIndex++) {
		const charCode = tokenText.charCodeAt(charIndex);
		switch (charCode) {
			case CharCode.Tab:
				result += '\u2192'; // &rarr;
				break;

			case CharCode.Space:
				result += '\u00B7'; // &middot;
				break;

			default:
				result += String.fromCharCode(charCode);
		}
	}
	return result;
}