mirror of https://github.com/tc39/test262.git
77 lines
3.8 KiB
JavaScript
77 lines
3.8 KiB
JavaScript
|
// Copyright 2019 Ron Buckton. All rights reserved.
|
|||
|
|
// This code is governed by the BSD license found in the LICENSE file.
|
|||
|
|
|
|||
|
|
/*---
|
|||
|
|
description: Basic matching cases with non-unicode matches.
|
|||
|
|
includes: [compareArray.js, propertyHelper.js, deepEqual.js]
|
|||
|
|
esid: sec-regexpbuiltinexec
|
|||
|
|
features: [regexp-match-indices]
|
|||
|
|
info: |
|
|||
|
|
Runtime Semantics: RegExpBuiltinExec ( R, S )
|
|||
|
|
...
|
|||
|
|
4. Let _lastIndex_ be ? ToLength(? Get(_R_, `"lastIndex")).
|
|||
|
|
...
|
|||
|
|
25. Let _indices_ be a new empty List.
|
|||
|
|
26. Let _match_ be the Match { [[StartIndex]]: _lastIndex_, [[EndIndex]]: _e_ }.
|
|||
|
|
27. Add _match_ as the last element of _indices_.
|
|||
|
|
...
|
|||
|
|
33. For each integer _i_ such that _i_ > 0 and _i_ <= _n_, in ascending order, do
|
|||
|
|
...
|
|||
|
|
f. Else,
|
|||
|
|
i. Let _captureStart_ be _captureI_'s _startIndex_.
|
|||
|
|
ii. Let _captureEnd_ be _captureI_'s _endIndex_.
|
|||
|
|
...
|
|||
|
|
iv. Let _capture_ be the Match { [[StartIndex]]: _captureStart_, [[EndIndex]]: _captureEnd_ }.
|
|||
|
|
v. Append _capture_ to _indices_.
|
|||
|
|
...
|
|||
|
|
34. Let _indicesArray_ be MakeIndicesArray( _S_, _indices_, _groupNames_).
|
|||
|
|
---*/
|
|||
|
|
|
|||
|
|
|
|||
|
|
assert.deepEqual([[1, 2], [1, 2]], "bab".match(/(a)/).indices);
|
|||
|
|
assert.deepEqual([[0, 3], [1, 2]], "bab".match(/.(a)./).indices);
|
|||
|
|
assert.deepEqual([[0, 3], [1, 2], [2, 3]], "bab".match(/.(a)(.)/).indices);
|
|||
|
|
assert.deepEqual([[0, 3], [1, 3]], "bab".match(/.(\w\w)/).indices);
|
|||
|
|
assert.deepEqual([[0, 3], [0, 3]], "bab".match(/(\w\w\w)/).indices);
|
|||
|
|
assert.deepEqual([[0, 3], [0, 2], [2, 3]], "bab".match(/(\w\w)(\w)/).indices);
|
|||
|
|
assert.deepEqual([[0, 2], [0, 2], undefined], "bab".match(/(\w\w)(\W)?/).indices);
|
|||
|
|
|
|||
|
|
let groups = /(?<a>.)(?<b>.)(?<c>.)\k<c>\k<b>\k<a>/.exec("abccba").indices.groups;
|
|||
|
|
assert.compareArray([0, 1], groups.a);
|
|||
|
|
assert.compareArray([1, 2], groups.b);
|
|||
|
|
assert.compareArray([2, 3], groups.c);
|
|||
|
|
verifyProperty(groups, "a", {
|
|||
|
|
enumerable: true,
|
|||
|
|
writable: true,
|
|||
|
|
configurable: true
|
|||
|
|
});
|
|||
|
|
verifyProperty(groups, "b", {
|
|||
|
|
enumerable: true,
|
|||
|
|
writable: true,
|
|||
|
|
configurable: true
|
|||
|
|
});
|
|||
|
|
verifyProperty(groups, "c", {
|
|||
|
|
enumerable: true,
|
|||
|
|
writable: true,
|
|||
|
|
configurable: true
|
|||
|
|
});
|
|||
|
|
|
|||
|
|
// "𝐁" is U+1d401 MATHEMATICAL BOLD CAPITAL B
|
|||
|
|
// - Also representable as the code point "\u{1d401}"
|
|||
|
|
// - Also representable as the surrogate pair "\uD835\uDC01"
|
|||
|
|
|
|||
|
|
// Verify assumptions:
|
|||
|
|
assert.sameValue("𝐁".length, 2, 'The length of "𝐁" is 2');
|
|||
|
|
assert.sameValue("\u{1d401}".length, 2, 'The length of "\\u{1d401}" is 2');
|
|||
|
|
assert.sameValue("\uD835\uDC01".length, 2, 'The length of "\\uD835\\uDC01" is 2');
|
|||
|
|
assert.sameValue("𝐁".match(/./)[0].length, 1, 'The length of a single code unit match against "𝐁" is 1 (without /u flag)');
|
|||
|
|
assert.sameValue("\u{1d401}".match(/./)[0].length, 1, 'The length of a single code unit match against "\\u{1d401}" is 1 (without /u flag)');
|
|||
|
|
assert.sameValue("\uD835\uDC01".match(/./)[0].length, 1, 'The length of a single code unit match against "\\ud835\\udc01" is 1 (without /u flag)');
|
|||
|
|
|
|||
|
|
assert.compareArray([0, 1], "𝐁".match(/./).indices[0], 'Indices for non-unicode match against "𝐁" (without /u flag)');
|
|||
|
|
assert.compareArray([0, 1], "\u{1d401}".match(/./).indices[0], 'Indices for non-unicode match against "\\u{1d401}" (without /u flag)');
|
|||
|
|
assert.compareArray([0, 1], "\uD835\uDC01".match(/./).indices[0], 'Indices for non-unicode match against "\\ud835\\udc01" (without /u flag)');
|
|||
|
|
assert.compareArray([0, 1], "𝐁".match(/(?<a>.)/).indices.groups.a, 'Indices for non-unicode match against "𝐁" in groups.a (without /u flag)');
|
|||
|
|
assert.compareArray([0, 1], "\u{1d401}".match(/(?<a>.)/).indices.groups.a, 'Indices for non-unicode match against "\\u{1d401}" in groups.a (without /u flag)');
|
|||
|
|
assert.compareArray([0, 1], "\uD835\uDC01".match(/(?<a>.)/).indices.groups.a, 'Indices for non-unicode match against "\\ud835\\udc01" in groups.a (without /u flag)');
|