Commit Graph
2 Commits
Author SHA1 Message Date
piegamesandCommentator2.0 56dee9186f libexpr: Warn on incorrect string escapes
In Nixpkgs, there are several strings like "\d\.\d" which attempt to be
a regex but are just literally "d.d". The escaping rules are silly and
we should warn our users about that.

Co-authored-by: Commentator2.0 <lix@crystal-cavern.systems>
Change-Id: I779b0757358fc9adc34dc140e1670b83abc93b67
2026-01-31 15:32:27 +01:00
piegamesandCommentator2.0 f1fbd1d095 libexpr: Warn on incorrect string usage
The indentation stripping semantics of strings are fairly bad and have a
few gotchas where they behave unintuitively. But the good news is, that
these cases are easy to catch and can be avoided.
This commit adds a warning in the parser when such strings are detected.

Unfortunately Nixpkgs uses this kind of a lot, so we won't be able to
actually enable this warning for a while to come.

Co-authored-by: Commentator2.0 <lix@crystal-cavern.systems>
Change-Id: I3b3b68c2eee4cd70959d3f4ca643cb6caf3a2217
2026-01-31 15:32:27 +01:00