Comments (2)
I think the original intent (the description supplanting the automatically generated one) has a use case, when applying .desc() at the "leaf" level. For example, in regex(r'horrible regex').desc('a thing'), we do not want the horrible regex in the expected output. But when applying desc() on a combined parser, we don't want to lose the index. The latter is a real problem because the error message becomes insensitive to component failures; I think that strongly motivates the fix above.
Still, these two cases are in conflict. Perhaps there needs to be two ideas here: the label for the thing and where the expected label comes from?
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Hi @genovese I think your analysis is correct. I haven't looked into it yet - how easy is it to get both accurate location information and the desired specified description in the error message?
Some test cases would be helpful to see exactly the issue. Thanks!
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Related Issues (20)
- >>= for bind HOT 14
- Missing documentation for eof parser? HOT 1
- Improve debugging: peek show next data in errors HOT 5
- Recompute line number for ParseError passed up from .bind
- Improve debugging ergonomics HOT 3
- Inline (explicit) and implicit tracing
- Missing seq import statement in tutorial HOT 1
- Help with parsing that "hangs" HOT 3
- Bug with backtracking and generate? HOT 4
- Parsy 1.3.0 fails to support 'group' keyword of `regex` function HOT 1
- async/await support in generate() HOT 6
- Release HOT 2
- Interested in a version of parsy with type annotations? HOT 3
- Allow providing a default to optional() HOT 2
- maintaining state while parsing HOT 3
- combine fails when nothing is produced by many HOT 2
- alt doesn't use fallback parsers when initial parser has .many()/.sep_by() HOT 1
- Processing list of tokens HOT 1
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