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KCL Boolean Logic (& and |) and keyword parsing fix #4194

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guptaarnav
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@guptaarnav guptaarnav commented Oct 17, 2024

Implemented boolean logical and (&) and boolean logical or (|). Closes #4188

Fixed a bug in the parsing of keywords; the unambiguous_keywords function looks ahead after a possible keyword candidate for more characters (letters, numbers, -, or _) to see if its an identifier instead of a keyword. This parsing was causing incorrect behavior if there is no token after the word being parsed, e.g. "true" (with EOF afterwards) would be parsed as an identifier because there are no characters to look ahead. This is resolved now.

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@adamchalmers
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adamchalmers commented Oct 17, 2024

I just changed how AST nodes are serialized, could you please merge/rebase main and then rerun the parser snapshot tests? Your snapshots should be less verbose now.

adamchalmers and others added 4 commits October 17, 2024 16:41
This will make our snapshots and JSON representations easier to read (making our tests less verbose).
* Add syntax highlighting for comparison operators

* A snapshot a day keeps the bugs away! 📷🐛 (OS: ubuntu-latest)

* Confirm

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Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
Neater code, and better error messages.
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lf94 commented Oct 29, 2024

@adamchalmers I'll need you to carry this one

@lf94 lf94 mentioned this pull request Oct 29, 2024
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Add Boolean 'and' and 'or' to kcl stdlib
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