[spec] hex-escape punctuators #67
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jridgewell
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| </h1> | ||
| <dl class="header"> | ||
| <dt>description</dt> | ||
| <dd>If the code unit represents a RegExp punctuator that needs escaping, or ASCII whitespace, it produces the code units for *"\x"* followed by the relevant escape code. If the code unit represents non-ASCII white space, it produces the code units for *"\u"* followed by the relevant escape code. Otherwise, it returns a List containing the original code unit.</dd> |
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| <dd>If the code unit represents a RegExp punctuator that needs escaping, or ASCII whitespace, it produces the code units for *"\x"* followed by the relevant escape code. If the code unit represents non-ASCII white space, it produces the code units for *"\u"* followed by the relevant escape code. Otherwise, it returns a List containing the original code unit.</dd> | |
| <dd>If _c_ represents a RegExp punctuator that needs escaping or ASCII whitespace, it produces the code points for *"\x"* followed by the relevant escape code. If _c_ represents non-ASCII white space, it produces the code points for *"\u"* followed by the relevant escape code. Otherwise, it returns a singleton List containing _c_.</dd> |
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The _c_ replacements seem good, done; but i think the comma is necessary for it to read properly, and what is a "singleton" List vs any other kind of List?
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A singleton list has one element. This is to be explicit that it's not any old list that contains c (and possibly other things) but the list that contains only c.
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That's a really confusing word to use to me; in JS a singleton is when you have a class with a single shared instance. Is that qualifier necessary, given that it already says "a List containing c"?
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It's not necessary, I just thought it was a cheap way to be more precise. https://en.wikipedia.org/wiki/Singleton_(mathematics)
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I don't see how it adds precision, since the prose already explicitly says it has one item in it.
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isn't "Otherwise, it returns a List containing the original code unit" that?
either way i'd like to land this, and i'm happy to have a PR tweaking it further, or we can do it at 262 time.
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isn't "Otherwise, it returns a List containing the original code unit" that?
I still don't know where this prose you're referring to is.
[a] is a list containing a, and is also a singleton list containing a. [a, b] is another list containing a, but is not a singleton list.
Anyway, it's not important, but for me it seemed like an easy win for precision.
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This PR contains the following updates: | Package | Type | Update | Change | |---|---|---|---| | [core-js](https://github.com/zloirock/core-js) | dependencies | minor | [`3.36.1` -> `3.37.1`](https://renovatebot.com/diffs/npm/core-js/3.36.1/3.37.1) | --- ### Release Notes <details> <summary>zloirock/core-js (core-js)</summary> ### [`v3.37.1`](https://github.com/zloirock/core-js/blob/HEAD/CHANGELOG.md#3371---20240514) [Compare Source](zloirock/core-js@v3.37.0...v3.37.1) - Changes [v3.37.0...v3.37.1](zloirock/core-js@v3.37.0...v3.37.1) - Fixed [`URL.parse`](https://url.spec.whatwg.org/#dom-url-parse) feature detection for some specific cases - Compat data improvements: - [`Set` methods proposal](https://github.com/tc39/proposal-set-methods) added and marked as [supported from FF 127](https://bugzilla.mozilla.org/show_bug.cgi?id=1868423) - [`Symbol.dispose`](https://github.com/tc39/proposal-explicit-resource-management) added and marked as supported from V8 ~ Chromium 125 - [`Math.f16round` and `DataView.prototype.{ getFloat16, setFloat16 }`](https://github.com/tc39/proposal-float16array) added and marked as [supported from Deno 1.43](denoland/deno#23490) - [`URL.parse`](https://url.spec.whatwg.org/#dom-url-parse) added and marked as [supported from Chromium 126](https://chromestatus.com/feature/6301071388704768) - [`URL.parse`](https://url.spec.whatwg.org/#dom-url-parse) added and marked as [supported from NodeJS 22.0](nodejs/node#52280) - [`URL.parse`](https://url.spec.whatwg.org/#dom-url-parse) added and marked as [supported from Deno 1.43](denoland/deno#23318) - Added [Rhino 1.7.15](https://github.com/mozilla/rhino/releases/tag/Rhino1\_7\_15\_Release) compat data, many features marked as supported - Added [NodeJS 22.0](https://nodejs.org/en/blog/release/v22.0.0) compat data mapping - Added [Deno 1.43](https://github.com/denoland/deno/releases/tag/v1.43.0) compat data mapping - Added Electron 31 compat data mapping - Updated [Opera Android 82](https://forums.opera.com/topic/71513/opera-for-android-82) compat data mapping - Added Samsung Internet 26 compat data mapping - Added Oculus Quest Browser 33 compat data mapping ### [`v3.37.0`](https://github.com/zloirock/core-js/blob/HEAD/CHANGELOG.md#3370---20240417) [Compare Source](zloirock/core-js@v3.36.1...v3.37.0) - Changes [v3.36.1...v3.37.0](zloirock/core-js@v3.36.1...v3.37.0) - [New `Set` methods proposal](https://github.com/tc39/proposal-set-methods): - Built-ins: - `Set.prototype.intersection` - `Set.prototype.union` - `Set.prototype.difference` - `Set.prototype.symmetricDifference` - `Set.prototype.isSubsetOf` - `Set.prototype.isSupersetOf` - `Set.prototype.isDisjointFrom` - Moved to stable ES, [April 2024 TC39 meeting](tc39/proposals@bda5a6b) - Added `es.` namespace modules, `/es/` and `/stable/` namespaces entries - [Explicit Resource Management stage 3 proposal](https://github.com/tc39/proposal-explicit-resource-management): - Some minor updates like [explicit-resource-management/217](tc39/proposal-explicit-resource-management#217) - Added [`Math.sumPrecise` stage 2.7 proposal](https://github.com/tc39/proposal-math-sum/): - Built-ins: - `Math.sumPrecise` - [`Promise.try` proposal](https://github.com/tc39/proposal-promise-try): - Built-ins: - `Promise.try` - Added optional arguments support, [promise-try/16](tc39/proposal-promise-try#16) - Moved to stage 2.7, [April 2024 TC39 meeting](tc39/proposals@301fc9c) - [`RegExp.escape` stage 2 proposal](https://github.com/tc39/proposal-regex-escaping): - Moved to hex-escape semantics, [regex-escaping/67](tc39/proposal-regex-escaping#67) - It's not the final change of the way of escaping, waiting for [regex-escaping/77](tc39/proposal-regex-escaping#77) soon - [Pattern matching stage 1 proposal](https://github.com/tc39/proposal-pattern-matching): - Built-ins: - `Symbol.customMatcher` - Once again, [the used well-known symbol was renamed](tc39/proposal-pattern-matching#295) - Added new entries for that - Added [Extractors stage 1 proposal](https://github.com/tc39/proposal-extractors): - Built-ins: - `Symbol.customMatcher` - Since the `Symbol.customMatcher` well-known symbol from the pattern matching proposal is also used in the exactors proposal, added an entry also for this proposal - Added [`URL.parse`](https://url.spec.whatwg.org/#dom-url-parse), [url/825](whatwg/url#825) - Engines bugs fixes: - Added a fix of [Safari `{ Object, Map }.groupBy` bug that does not support iterable primitives](https://bugs.webkit.org/show_bug.cgi?id=271524) - Added a fix of [Safari bug with double call of constructor in `Array.fromAsync`](https://bugs.webkit.org/show_bug.cgi?id=271703) - Compat data improvements: - [`URL.parse`](https://url.spec.whatwg.org/#dom-url-parse) added and marked as supported [from FF 126](https://bugzilla.mozilla.org/show_bug.cgi?id=1887611) - [`URL.parse`](https://url.spec.whatwg.org/#dom-url-parse) added and marked as supported [from Bun 1.1.4](oven-sh/bun#10129) - [`URL.canParse`](https://url.spec.whatwg.org/#dom-url-canparse) fixed and marked as supported [from Bun 1.1.0](oven-sh/bun#9710) - [New `Set` methods](https://github.com/tc39/proposal-set-methods) fixed in JavaScriptCore and marked as supported from Bun 1.1.1 - Added Opera Android 82 compat data mapping </details> --- ### Configuration 📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined). 🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied. ♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox. 🔕 **Ignore**: Close this PR and you won't be reminded about this update again. --- - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box --- This PR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate). <!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNy4wLjAiLCJ1cGRhdGVkSW5WZXIiOiIzNy4wLjAiLCJ0YXJnZXRCcmFuY2giOiJkZXZlbG9wIn0=--> Reviewed-on: https://git.vylpes.xyz/RabbitLabs/Droplet/pulls/306 Co-authored-by: Renovate Bot <renovate@vylpes.com> Co-committed-by: Renovate Bot <renovate@vylpes.com>
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Fixes #65