Is there a way to do a case insensitive literal match?

I can pipe a string.lower to a lower-case literal but that seems complicated for this.

16 Replies

You could use a regex like type(/^foo$/i)

francisOP•7mo ago

hm, which is uglier:

  optionOne: /^success$/i,
  optionTwo: type("string.lower").pipe(type("'success'")),

  optionOne: /^success$/i,
  optionTwo: type("string.lower").pipe(type("'success'")),

🤔

ssalbdivad•7mo ago

You could do type("string.lower").to("'success'") They're not equivalent though That one will always return "success" The regex would validate that if it were lowercase it would be success, but it would return the original string Also IMO neither of them are that ugly, I can't really imagine a much cleaner API for something like that 😅

francisOP•7mo ago

hm... and now how about if I wanted to ignore whitespace as well? 🫠 this doesn't seem to do what I expect: let temp = type('string.trim').to('string.lower').to("'success'")

ssalbdivad•7mo ago

In what way does it not do what you expect

francisOP•7mo ago

ah, so, it only applies the first and last operations in the pipeline

ssalbdivad•7mo ago

What does?

francisOP•7mo ago

if I have string.trim first and string.lower second, success validates but Success does not in the inverse case, Success validates but success doesn't

ssalbdivad•7mo ago

That does seem wrong I will look into that

francisOP•7mo ago

here's a one liner to try: type('string.lower').to('string.trim').to("'success'")('Success') vs type('string.lower').to('string.trim').to("'success'")('success ') those should both pass, but only one does this is with latest RC.12

ssalbdivad•7mo ago

I suppose it would be more efficient anyways to just do type("string").pipe(s => s.trim().toLowerCase()).to("'success'")

francisOP•7mo ago

and it's order dependent! if you put string.trim first, it inverts the success and error from the example above

ssalbdivad•7mo ago

Hmm yeah it's something to do with the redundant intermediate validation. This works

const tt = type("string.lower")
    .pipe(s => s.trim())
    .to("'success'")

const tt = type("string.lower")
    .pipe(s => s.trim())
    .to("'success'")

I'm off this weekend but if you want to open an issue I will fix this in the next release

francisOP•7mo ago

I'll add one - thank you!

francisOP•7mo ago

https://github.com/arktypeio/arktype/issues/1144

GitHub

Pipeline of string keywords appears to skip intermediate options · ...

Report a bug 🔎 Search Terms string, keywords, string.lower, string.trim, case 🧩 Context OS: macOS 15.0 CPU: (10) arm64 Apple M1 Pro Memory: 92.36 MB / 16.00 GB Shell: 5.9 - /bin/zsh Binaries: Node:...

ssalbdivad•7mo ago

Thanks!

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Is there a way to do a case insensitive literal match?

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