mirror of
https://github.com/tc39/test262.git
synced 2025-10-31 03:34:08 +01:00
75 lines
3.8 KiB
JavaScript
75 lines
3.8 KiB
JavaScript
// Copyright 2023 Ron Buckton. All rights reserved.
|
|
// This code is governed by the BSD license found in the LICENSE file.
|
|
|
|
/*---
|
|
author: Ron Buckton
|
|
description: >
|
|
ignoreCase (`i`) modifier can be removed via `(?i:)` or `(?i-:)`.
|
|
info: |
|
|
Runtime Semantics: CompileAtom
|
|
The syntax-directed operation CompileAtom takes arguments direction (forward or backward) and modifiers (a Modifiers Record) and returns a Matcher.
|
|
|
|
Atom :: `(` `?` RegularExpressionFlags `-` RegularExpressionFlags `:` Disjunction `)`
|
|
1. Let addModifiers be the source text matched by the first RegularExpressionFlags.
|
|
2. Let removeModifiers be the source text matched by the second RegularExpressionFlags.
|
|
3. Let newModifiers be UpdateModifiers(modifiers, CodePointsToString(addModifiers), CodePointsToString(removeModifiers)).
|
|
4. Return CompileSubpattern of Disjunction with arguments direction and newModifiers.
|
|
|
|
UpdateModifiers ( modifiers, add, remove )
|
|
The abstract operation UpdateModifiers takes arguments modifiers (a Modifiers Record), add (a String), and remove (a String) and returns a Modifiers. It performs the following steps when called:
|
|
|
|
1. Let dotAll be modifiers.[[DotAll]].
|
|
2. Let ignoreCase be modifiers.[[IgnoreCase]].
|
|
3. Let multiline be modifiers.[[Multiline]].
|
|
4. If add contains "s", set dotAll to true.
|
|
5. If add contains "i", set ignoreCase to true.
|
|
6. If add contains "m", set multiline to true.
|
|
7. If remove contains "s", set dotAll to false.
|
|
8. If remove contains "i", set ignoreCase to false.
|
|
9. If remove contains "m", set multiline to false.
|
|
10. Return the Modifiers Record { [[DotAll]]: dotAll, [[IgnoreCase]]: ignoreCase, [[Multiline]]: multiline }.
|
|
|
|
esid: sec-compileatom
|
|
features: [regexp-modifiers]
|
|
---*/
|
|
|
|
var re1 = /(?-i:fo)o/i;
|
|
assert(!re1.test("FOO"), "Pattern should not match as modified group does not ignore case");
|
|
assert(!re1.test("FOo"), "Pattern should not match as modified group does not ignore case");
|
|
assert(re1.test("foo"), "Pattern should not ignore case in modified group");
|
|
assert(re1.test("foO"), "Pattern should not ignore case in modified group");
|
|
|
|
var re2 = new RegExp("(?-i:fo)o", "i");
|
|
assert(!re2.test("FOO"), "Pattern should not match as modified group does not ignore case");
|
|
assert(!re2.test("FOo"), "Pattern should not match as modified group does not ignore case");
|
|
assert(re2.test("foo"), "Pattern should not ignore case in modified group");
|
|
assert(re2.test("foO"), "Pattern should not ignore case in modified group");
|
|
|
|
var re3 = /b(?-i:ar)/i;
|
|
assert(!re3.test("BAR"), "Pattern should not match as modified group does not ignore case");
|
|
assert(!re3.test("bAR"), "Pattern should not match as modified group does not ignore case");
|
|
assert(re3.test("bar"), "Pattern should not ignore case in modified group");
|
|
assert(re3.test("Bar"), "Pattern should not ignore case in modified group");
|
|
|
|
var re4 = new RegExp("b(?-i:ar)", "i");
|
|
assert(!re4.test("BAR"), "Pattern should not match as modified group does not ignore case");
|
|
assert(!re4.test("bAR"), "Pattern should not match as modified group does not ignore case");
|
|
assert(re4.test("bar"), "Pattern should not ignore case in modified group");
|
|
assert(re4.test("Bar"), "Pattern should not ignore case in modified group");
|
|
|
|
var re5 = /b(?-i:a)z/i;
|
|
assert(re5.test("baz"), "a should match a in baz");
|
|
assert(!re5.test("bAz"), "A should not match a in baz");
|
|
assert(re5.test("Baz"), "B should match b in baz");
|
|
assert(re5.test("baZ"), "Z should match z in baz");
|
|
assert(re5.test("BaZ"), "should match baz");
|
|
assert(!re5.test("BAZ"), "should not match baz");
|
|
|
|
var re6 = new RegExp("b(?-i:a)z", "i");
|
|
assert(re6.test("baz"), "a should match a in baz");
|
|
assert(!re6.test("bAz"), "A should not match a in baz");
|
|
assert(re6.test("Baz"), "B should match b in baz");
|
|
assert(re6.test("baZ"), "Z should match z in baz");
|
|
assert(re6.test("BaZ"), "should match baz");
|
|
assert(!re6.test("BAZ"), "should not match baz");
|