[hk__2]

Frak [1] does something like that and was written with syntax higlighters in mind.

[1]: https://github.com/noprompt/frak

edit: typo

[jaytaylor]

Wow, this is an interesting idea for a library, thanks @hk__2 for sharing!

TLDR; frak transforms collections of strings into regular expressions for matching those strings. It is available as a command line utility and for the browser as a JavaScript library.

[sooheon]

I think emacs has the equivalent built in: `(rx (or "foo" "bar" "baz" "quux"))` gives you: `;; => "\\(?:ba[rz]\\|foo\\|quux\\)"`

[Klathmon]

Wow that's almost exactly what I had in mind.

I might take a look at this later and see if incorporating this or something like it has any kind of meaningful impact.