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tests-regexp-2018.js
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if (typeof exports !== "undefined") {
var test = require("./driver.js").test
var testFail = require("./driver.js").testFail
}
//------------------------------------------------------------------------------
// Named capture groups
//------------------------------------------------------------------------------
test("/(a)/", {}, { ecmaVersion: 2018 })
test("/(?:a)/", {}, { ecmaVersion: 2018 })
testFail("/(?a/", "Invalid regular expression: /(?a/: Invalid group (1:1)", { ecmaVersion: 2018 })
testFail("/(?a)/", "Invalid regular expression: /(?a)/: Invalid group (1:1)", { ecmaVersion: 2018 })
testFail("/(?</", "Invalid regular expression: /(?</: Invalid capture group name (1:1)", { ecmaVersion: 2018 })
testFail("/(?<)/", "Invalid regular expression: /(?<)/: Invalid capture group name (1:1)", { ecmaVersion: 2018 })
testFail("/(?<a)/", "Invalid regular expression: /(?<a)/: Invalid capture group name (1:1)", { ecmaVersion: 2018 })
test("/(?<a>)/", {}, { ecmaVersion: 2018 })
test("/\\k/", {}, { ecmaVersion: 2017 })
test("/\\k/", {}, { ecmaVersion: 2018 })
testFail("/\\k/u", "Invalid regular expression: /\\k/: Invalid escape (1:1)", { ecmaVersion: 2017 })
testFail("/\\k/u", "Invalid regular expression: /\\k/: Invalid named reference (1:1)", { ecmaVersion: 2018 })
test("/\\k<a>/", {}, { ecmaVersion: 2017 })
test("/\\k<a>/", {}, { ecmaVersion: 2018 })
testFail("/\\k<a>/u", "Invalid regular expression: /\\k<a>/: Invalid escape (1:1)", { ecmaVersion: 2017 })
testFail("/\\k<a>/u", "Invalid regular expression: /\\k<a>/: Invalid named capture referenced (1:1)", { ecmaVersion: 2018 })
testFail("/(?<a>a)\\k</", "Invalid regular expression: /(?<a>a)\\k</: Invalid group (1:1)", { ecmaVersion: 2017 })
testFail("/(?<a>a)\\k</", "Invalid regular expression: /(?<a>a)\\k</: Invalid capture group name (1:1)", { ecmaVersion: 2018 })
testFail("/(?<a>a)\\k</u", "Invalid regular expression: /(?<a>a)\\k</: Invalid group (1:1)", { ecmaVersion: 2017 })
testFail("/(?<a>a)\\k</u", "Invalid regular expression: /(?<a>a)\\k</: Invalid capture group name (1:1)", { ecmaVersion: 2018 })
testFail("/(?<a>a)\\k<a/", "Invalid regular expression: /(?<a>a)\\k<a/: Invalid group (1:1)", { ecmaVersion: 2017 })
testFail("/(?<a>a)\\k<a/", "Invalid regular expression: /(?<a>a)\\k<a/: Invalid capture group name (1:1)", { ecmaVersion: 2018 })
testFail("/(?<a>a)\\k<a/u", "Invalid regular expression: /(?<a>a)\\k<a/: Invalid group (1:1)", { ecmaVersion: 2017 })
testFail("/(?<a>a)\\k<a/u", "Invalid regular expression: /(?<a>a)\\k<a/: Invalid capture group name (1:1)", { ecmaVersion: 2018 })
testFail("/(?<a>a)\\k<a>/", "Invalid regular expression: /(?<a>a)\\k<a>/: Invalid group (1:1)", { ecmaVersion: 2017 })
test("/(?<a>a)\\k<a>/", {}, { ecmaVersion: 2018 })
testFail("/(?<a>a)\\k<a>/u", "Invalid regular expression: /(?<a>a)\\k<a>/: Invalid group (1:1)", { ecmaVersion: 2017 })
test("/(?<a>a)\\k<a>/u", {}, { ecmaVersion: 2018 })
test("/(?<a>a)\\1/", {}, { ecmaVersion: 2018 })
test("/(?<a>a)\\1/u", {}, { ecmaVersion: 2018 })
test("/(?<a>a)\\2/", {}, { ecmaVersion: 2018 })
testFail("/(?<a>a)\\2/u", "Invalid regular expression: /(?<a>a)\\2/: Invalid escape (1:1)", { ecmaVersion: 2018 })
testFail("/(?<a>a)\\k<b>/", "Invalid regular expression: /(?<a>a)\\k<b>/: Invalid named capture referenced (1:1)", { ecmaVersion: 2018 })
testFail("/(?<a>a)\\k<b>/u", "Invalid regular expression: /(?<a>a)\\k<b>/: Invalid named capture referenced (1:1)", { ecmaVersion: 2018 })
testFail("/(?<a>a)(?<a>a)/", "Invalid regular expression: /(?<a>a)(?<a>a)/: Duplicate capture group name (1:1)", { ecmaVersion: 2018 })
testFail("/(?<a>a)(?<a>a)/u", "Invalid regular expression: /(?<a>a)(?<a>a)/: Duplicate capture group name (1:1)", { ecmaVersion: 2018 })
testFail("/(?<a>a)(?<\\u{61}>a)/u", "Invalid regular expression: /(?<a>a)(?<\\u{61}>a)/: Duplicate capture group name (1:1)", { ecmaVersion: 2018 })
testFail("/(?<a>a)(?<\\u0061>a)/u", "Invalid regular expression: /(?<a>a)(?<\\u0061>a)/: Duplicate capture group name (1:1)", { ecmaVersion: 2018 })
test("/(?<a>a)(?<b>a)/", {}, { ecmaVersion: 2018 })
test("/(?<a>a)(?<b>a)/u", {}, { ecmaVersion: 2018 })
test("/\\k<a>(?<a>a)/", {}, { ecmaVersion: 2018 })
test("/\\k<a>(?<a>a)/u", {}, { ecmaVersion: 2018 })
test("/\\1(?<a>a)/", {}, { ecmaVersion: 2018 })
test("/\\1(?<a>a)/u", {}, { ecmaVersion: 2018 })
test("/(?<$abc>a)\\k<$abc>/u", {}, { ecmaVersion: 2018 })
test("/(?<あ>a)\\k<あ>/u", {}, { ecmaVersion: 2018 })
test("/(?<𠮷>a)\\k<\\u{20bb7}>/u", {}, { ecmaVersion: 2018 })
test("/(?<\\uD842\\uDFB7>a)\\k<\\u{20bb7}>/u", {}, { ecmaVersion: 2018 })
test("/(?<\\u{20bb7}>a)\\k<\\uD842\\uDFB7>/u", {}, { ecmaVersion: 2018 })
testFail("/(?<☀>a)\\k<☀>/u", "Invalid regular expression: /(?<☀>a)\\k<☀>/: Invalid capture group name (1:1)", { ecmaVersion: 2018 })
testFail("/(?<\\u0020>a)\\k<\\u0020>/u", "Invalid regular expression: /(?<\\u0020>a)\\k<\\u0020>/: Invalid capture group name (1:1)", { ecmaVersion: 2018 })
test("/(?<abc>a)\\k<\\u0061\\u0062\\u0063>/u", {}, { ecmaVersion: 2018 })
test("/(?<\\u0061\\u0062\\u0063>a)\\k<abc>/u", {}, { ecmaVersion: 2018 })
test("/(?<\\u0061\\u0062\\u0063>a)\\k<\\u{61}\\u{62}\\u{63}>/u", {}, { ecmaVersion: 2018 })
testFail("/(?<\\u0061\\u0062\\u0063>a)\\k<abd>/u", "Invalid regular expression: /(?<\\u0061\\u0062\\u0063>a)\\k<abd>/: Invalid named capture referenced (1:1)", { ecmaVersion: 2018 })
testFail("/(?<11>a)\\k<11>/u", "Invalid regular expression: /(?<11>a)\\k<11>/: Invalid capture group name (1:1)", { ecmaVersion: 2018 })
test("/(?<a1>a)\\k<a1>/u", {}, { ecmaVersion: 2018 })
//------------------------------------------------------------------------------
// Unicode property escapes
//------------------------------------------------------------------------------
test("/\\p/", {}, { ecmaVersion: 2017 })
testFail("/\\p/u", "Invalid regular expression: /\\p/: Invalid escape (1:1)", { ecmaVersion: 2017 })
test("/\\p/", {}, { ecmaVersion: 2018 })
testFail("/\\p/u", "Invalid regular expression: /\\p/: Invalid property name (1:1)", { ecmaVersion: 2018 })
test("/\\p{/", {}, { ecmaVersion: 2017 })
testFail("/\\p{/u", "Invalid regular expression: /\\p{/: Invalid escape (1:1)", { ecmaVersion: 2017 })
test("/\\p{/", {}, { ecmaVersion: 2018 })
testFail("/\\p{/u", "Invalid regular expression: /\\p{/: Invalid property name (1:1)", { ecmaVersion: 2018 })
test("/\\p{ASCII/", {}, { ecmaVersion: 2017 })
testFail("/\\p{ASCII/u", "Invalid regular expression: /\\p{ASCII/: Invalid escape (1:1)", { ecmaVersion: 2017 })
test("/\\p{ASCII/", {}, { ecmaVersion: 2018 })
testFail("/\\p{ASCII/u", "Invalid regular expression: /\\p{ASCII/: Invalid property name (1:1)", { ecmaVersion: 2018 })
test("/\\p{ASCII}/", {}, { ecmaVersion: 2017 })
testFail("/\\p{ASCII}/u", "Invalid regular expression: /\\p{ASCII}/: Invalid escape (1:1)", { ecmaVersion: 2017 })
test("/\\p{ASCII}/", {}, { ecmaVersion: 2018 })
test("/\\p{ASCII}/u", {}, { ecmaVersion: 2018 })
test("/\\p{Emoji}/u", {}, { ecmaVersion: 2018 })
testFail("/\\p{General_Category}/u", "Invalid regular expression: /\\p{General_Category}/: Invalid property name (1:1)", { ecmaVersion: 2018 })
testFail("/\\p{General_Category=}/u", "Invalid regular expression: /\\p{General_Category=}/: Invalid property name (1:1)", { ecmaVersion: 2018 })
testFail("/\\p{General_Category/u", "Invalid regular expression: /\\p{General_Category/: Invalid property name (1:1)", { ecmaVersion: 2018 })
testFail("/\\p{General_Category=/u", "Invalid regular expression: /\\p{General_Category=/: Invalid property name (1:1)", { ecmaVersion: 2018 })
testFail("/\\p{General_Category=Letter/u", "Invalid regular expression: /\\p{General_Category=Letter/: Invalid property name (1:1)", { ecmaVersion: 2018 })
test("/\\p{General_Category=Letter}/u", {}, { ecmaVersion: 2018 })
testFail("/\\p{General_Category=Hiragana}/u", "Invalid regular expression: /\\p{General_Category=Hiragana}/: Invalid property value (1:1)", { ecmaVersion: 2018 })
test("/\\p{Script=Hiragana}/u", {}, { ecmaVersion: 2018 })
testFail("/[\\p{Script=Hiragana}-\\p{Script=Katakana}]/u", "Invalid regular expression: /[\\p{Script=Hiragana}-\\p{Script=Katakana}]/: Invalid character class (1:1)", { ecmaVersion: 2018 })
test("/[\\p{Script=Hiragana}\\-\\p{Script=Katakana}]/u", {}, { ecmaVersion: 2018 })
//------------------------------------------------------------------------------
// Lookbehind assertions
//------------------------------------------------------------------------------
testFail("/(?<a)/", "Invalid regular expression: /(?<a)/: Invalid group (1:1)", { ecmaVersion: 2017 })
testFail("/(?<a)/u", "Invalid regular expression: /(?<a)/: Invalid group (1:1)", { ecmaVersion: 2017 })
testFail("/(?<a)/", "Invalid regular expression: /(?<a)/: Invalid capture group name (1:1)", { ecmaVersion: 2018 })
testFail("/(?<a)/u", "Invalid regular expression: /(?<a)/: Invalid capture group name (1:1)", { ecmaVersion: 2018 })
testFail("/(?<=a)/", "Invalid regular expression: /(?<=a)/: Invalid group (1:1)", { ecmaVersion: 2017 })
testFail("/(?<=a)/u", "Invalid regular expression: /(?<=a)/: Invalid group (1:1)", { ecmaVersion: 2017 })
test("/(?<=a)/", {}, { ecmaVersion: 2018 })
test("/(?<=a)/u", {}, { ecmaVersion: 2018 })
testFail("/(?<!a)/", "Invalid regular expression: /(?<!a)/: Invalid group (1:1)", { ecmaVersion: 2017 })
testFail("/(?<!a)/u", "Invalid regular expression: /(?<!a)/: Invalid group (1:1)", { ecmaVersion: 2017 })
test("/(?<!a)/", {}, { ecmaVersion: 2018 })
test("/(?<!a)/u", {}, { ecmaVersion: 2018 })
testFail("/(?<=a)?/", "Invalid regular expression: /(?<=a)?/: Nothing to repeat (1:1)", { ecmaVersion: 2018 })
testFail("/(?<=a)?/u", "Invalid regular expression: /(?<=a)?/: Nothing to repeat (1:1)", { ecmaVersion: 2018 })
testFail("/(?<=a)+/", "Invalid regular expression: /(?<=a)+/: Nothing to repeat (1:1)", { ecmaVersion: 2018 })
testFail("/(?<=a)+/u", "Invalid regular expression: /(?<=a)+/: Nothing to repeat (1:1)", { ecmaVersion: 2018 })
testFail("/(?<=a)*/", "Invalid regular expression: /(?<=a)*/: Nothing to repeat (1:1)", { ecmaVersion: 2018 })
testFail("/(?<=a)*/u", "Invalid regular expression: /(?<=a)*/: Nothing to repeat (1:1)", { ecmaVersion: 2018 })
testFail("/(?<=a){1}/", "Invalid regular expression: /(?<=a){1}/: Nothing to repeat (1:1)", { ecmaVersion: 2018 })
testFail("/(?<=a){1}/u", "Invalid regular expression: /(?<=a){1}/: Nothing to repeat (1:1)", { ecmaVersion: 2018 })
testFail("/(?<!a)?/", "Invalid regular expression: /(?<!a)?/: Nothing to repeat (1:1)", { ecmaVersion: 2018 })
testFail("/(?<!a)?/u", "Invalid regular expression: /(?<!a)?/: Nothing to repeat (1:1)", { ecmaVersion: 2018 })
testFail("/(?<!a)+/", "Invalid regular expression: /(?<!a)+/: Nothing to repeat (1:1)", { ecmaVersion: 2018 })
testFail("/(?<!a)+/u", "Invalid regular expression: /(?<!a)+/: Nothing to repeat (1:1)", { ecmaVersion: 2018 })
testFail("/(?<!a)*/", "Invalid regular expression: /(?<!a)*/: Nothing to repeat (1:1)", { ecmaVersion: 2018 })
testFail("/(?<!a)*/u", "Invalid regular expression: /(?<!a)*/: Nothing to repeat (1:1)", { ecmaVersion: 2018 })
testFail("/(?<!a){1}/", "Invalid regular expression: /(?<!a){1}/: Nothing to repeat (1:1)", { ecmaVersion: 2018 })
testFail("/(?<!a){1}/u", "Invalid regular expression: /(?<!a){1}/: Nothing to repeat (1:1)", { ecmaVersion: 2018 })
test("/(?<=(?<a>\\w){3})f/u", {}, { ecmaVersion: 2018 })
test("/((?<=\\w{3}))f/u", {}, { ecmaVersion: 2018 })
test("/(?<a>(?<=\\w{3}))f/u", {}, { ecmaVersion: 2018 })
test("/(?<!(?<a>\\d){3})f/u", {}, { ecmaVersion: 2018 })
test("/(?<!(?<a>\\D){3})f|f/u", {}, { ecmaVersion: 2018 })
test("/(?<a>(?<!\\D{3}))f|f/u", {}, { ecmaVersion: 2018 })
test("/(?<=(?<a>\\w){3})f/", {}, { ecmaVersion: 2018 })
test("/((?<=\\w{3}))f/", {}, { ecmaVersion: 2018 })
test("/(?<a>(?<=\\w{3}))f/", {}, { ecmaVersion: 2018 })
test("/(?<!(?<a>\\d){3})f/", {}, { ecmaVersion: 2018 })
test("/(?<a>(?<!\\D{3}))f|f/", {}, { ecmaVersion: 2018 })
test("/(?<=(?<fst>.)|(?<snd>.))/u", {}, { ecmaVersion: 2018 })