ucd-generate VS unicode-xid

So you're saying that the 'expect()' message when a regex compilation error occurs should be a translation from a terse domain specific language to bloviating prose? :-)

What 'expect()' message would you write for this regex? https://github.com/BurntSushi/ucd-generate/blob/6d3aae3b8005...

I think 'unwrap()' there is perfectly appropriate.

> I think it'd be desirable to have a `.unwrap_with_context("Context: {}")`, and the you'd get `Context: Inner Panic Info`.

Why?

I've also embedded Unicode tables a number of times. It's very easy to do, and I do it enough that I even have a tool to do it. Having tooling and scripts to do it is important for reasons of provenance and also for when the tables need to be updated (every year or so).

ucd-generate for generating Unicode tables. It is what the regex crate uses to generate all of its tables, and it supports many properties already. It also provides a way to represent Unicode character names in a compressed data structure.

Another is unicode-xid. The entire package is literally a constant lookup table. Again, I've embedded Unicode tables in my own programs a number of time. The original tables are machine-readable, and transforming them into code is so simple I usually don't even bother writing a script to do it, just an on-the-fly editor macro.