Comments (3)
I think this is probably occurring because Participle allows you to use references like \1
in the destination state, to refer to captured groups from the parent state. Because you have a capture group that doesn't capture anything, it's failing. It needs to cater to that case though.
from participle.
Mm actually sorry, I misread. That might not be it.
Try using a non-capturing group and see if that fixes it: (?:[[:alnum:]]*)
from participle.
If we change pattern of ident to [[:alpha:]][[:alnum:]]* (Just remove the inner group, or add ?: make it non-capture), it will works fine.
Yes, change pattern to non-capture will fix this, actually, it is the workaround I'm using in my real project.
from participle.
Related Issues (20)
- Dependency Dashboard
- Action Required: Fix Renovate Configuration
- Need advice: Wrong branch is picked on non-trivial match HOT 1
- too many iterations panic HOT 1
- Adding a custom lexer rule without overriding current rules.
- Error recovery ideas HOT 4
- Request for help (aka so near and yet so far).
- Railroad diagram command HOT 6
- Feature Request: Custom Rules HOT 9
- Question: Are participle.Parser instances thread-safe? HOT 1
- Handling Booleans bug HOT 3
- PAnic vs return nil in validate function HOT 2
- Issue with a nested structure HOT 1
- JSON parser support
- example not working? HOT 2
- Very weird bug using otherwise OK parsers in Union HOT 5
- Unable to install lexer generator HOT 5
- Issue caputuring a single char quoted by quotation marks
- How can I use the matchLongest lexer option? HOT 2
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from participle.