diff --git a/test/annexB/built-ins/RegExp/RegExp-invalid-control-escape-character-class.js b/test/annexB/built-ins/RegExp/RegExp-invalid-control-escape-character-class.js new file mode 100644 index 0000000000000000000000000000000000000000..6a3d4480341794409ddc60b5addd8aca31dcb4d0 --- /dev/null +++ b/test/annexB/built-ins/RegExp/RegExp-invalid-control-escape-character-class.js @@ -0,0 +1,53 @@ +// Copyright 2017 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +esid: prod-annexB-ClassEscape +description: > + Character classes containing an invalid control escape behave like [\\c] +info: > + ClassEscape :: [~U] `c` + + The production ClassEscape :: `c` evaluates as follows: + 1. Return the CharSet containing the characters `\` and `c`. +---*/ + +function* invalidControls() { + // Check ASCII characters which are not in the extended range or syntax + // characters + for (let alpha = 0x00; alpha <= 0x7F; alpha++) { + let letter = String.fromCharCode(alpha); + if (!letter.match(/[0-9A-Za-z_\$(|)\[\]\/\\^]/)) { + yield letter; + } + } + yield ""; +} + +for (let letter of invalidControls()) { + var source = "[\\c" + letter + "]"; + var re = new RegExp(source); + + if (letter.length > 0) { + var char = letter.charCodeAt(0); + var str = String.fromCharCode(char % 32); + var arr = re.exec(str); + if (str !== letter && arr !== null) { + $ERROR(`Character ${letter} unreasonably wrapped around as a control character`); + } + + arr = re.exec(letter); + if (arr === null) { + $ERROR(`Character ${letter} missing from character class ${source}`); + } + } + arr = re.exec("\\") + if (arr === null) { + $ERROR(`Character \\ missing from character class ${source}`); + } + arr = re.exec("c") + if (arr === null) { + $ERROR(`Character c missing from character class ${source}`); + } +} +