'a' '\u0041' '\n' '\t' "" "fo\"obar" """fo"o bar""" """fo"o // comment bar""" "foo /* comment */ bar" 'foo // bar' ---------------------------------------------------- [ ["string", "'a'"], ["string", "'\\u0041'"], ["string", "'\\n'"], ["string", "'\\t'"], ["string", "\"\""], ["string", "\"fo\\\"obar\""], ["string", "\"\"\"fo\"o\r\nbar\"\"\""], ["string", "\"\"\"fo\"o\r\n// comment\r\nbar\"\"\""], ["string", "\"foo /* comment */ bar\""], ["string", "'foo // bar'"] ] ---------------------------------------------------- Checks for characters and strings.