Kevin Gibbons

Rewriting `.ts` module specifiers to `.js` without a plugin

4

The TypeScript team seems set on making a decision I think is going to lead to a lot of pain for beginners: they are categorically against rewrite module specifiers. This...

Impossible to validate missing arguments for a flag when `multiple` is set

1

As in https://github.com/75lb/command-line-args/issues/112, I was surprised to find that parsing a flag with a type when the argument is omitted does not error, instead returning `null`. That issue points to...

The [wiki](https://github.com/75lb/command-line-args/wiki/Terminate-parsing-with-a-double-hypen#solution-use-stopatfirstunknown-with---) discusses how to correctly handle a double hyphen / double dash (`--`), but the suggested solution doesn't work when `defaultOption` is set, particularly alongside `multiple`: ```js 'use strict';...

emitting non-strings

2

For ecmarkup, I need to associate the generated HTML productions with their original `Production` objects. The obvious way to do that is to make an emitter which creates JSDom nodes...

Repro: ```js 'use strict'; let { CoreAsyncHost, Grammar, GrammarkdownEmitter } = require('grammarkdown'); let source = ` Foo : Bar `; (async () => { const grammarHost = CoreAsyncHost.forFile(source); const grammar...

fix typo in docs

1

I think the HTML probably needs to be rebuilt too, but I couldn't figure out how to do it. There's no script in `package.json` which is suggestive of "this will...

Motivation / problem being solved?

9

The README doesn't really explain what problem this proposal is setting out to solve, which makes it hard to evaluate.

e.g. enter `S -> A`. "Verify" says "A" is in the language of the grammar, but because test cases get lowercased, "A" will not match in the box. Preferred solution...

[Treefuzz](https://github.com/bakkot/treefuzz) implements the algorithm [used in this project](https://github.com/bakkot/cfgrammar-tool/blob/master/generate.js), but generalizes it and is cleaner.

JS correctness issue when overriding RegExp .exec to be incoherent

1

(tested with 1.11.24.0 on Mac OS) This is one of those "I went looking for dumb edge cases" bugs. It didn't come up in real code - it requires code...