this post was submitted on 12 Jul 2023
2 points (100.0% liked)

Haskell

6 readers
1 users here now

**The Haskell programming language community.** Daily news and info about all things Haskell related: practical stuff, theory, types, libraries, jobs, patches, releases, events and conferences and more... ### Links - Get Started with Haskell

founded 2 years ago
2
How Megaparsec combines error information (kbin.social)
submitted 2 years ago* (last edited 2 years ago) by [email protected] to c/[email protected]
4 comments fedilink hide all child comments
 

How is error information combined when parsers are combined? For example, using <|> to combine parsers, I would expect the set of expected characters for an error to be the union of the sets of expected characters from the individual parsers. (I'm finding it hard to pin down the behaviour of <|> or even to find the relevant source code.)

no comments (yet)
sorted by: hot top controversial new old
there doesn't seem to be anything here