Add a lexer for Lean 4 #2618
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Add a lexer for Lean 4 #2618
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…f53542814c79469711ceff19fbf/doc/latex/lean4.py This is based off an old version of the Lean 3 lexer.
There is no need for `re.UNICODE` any more, or `u` prefixes.
The version and url information no longer lives in the docstring.
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This allows a lean4 version of the lean3 test to be committed
* Use `Whitespace` not `Text` for Whitespace * Use a single token for an entire multiline comment, not one per character * Fix brace-matching for `@[attr]` syntax * Add docstring highlighting
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Julian
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Nice! This looks pretty good. I'm sure I've missed a thing or two, but I tried to double check the keyword list and give a cursory look over the token list which pretty much looks good!
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Maybe also add a line to the |
This also corrects the integer parser to not include field projections
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Nice. This LGTM at this point I think (with or without the operator tweaking)!
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| (r'\d+', Number.Integer), | ||
| (r'"', String.Double, 'string'), | ||
| (r'[~?][a-z][\w\']*:', Name.Variable), | ||
| (r'\S', Name.Builtin.Pseudo), |
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Arbitrary notation defined by the user; without it, all such notation would be marked as invalid
jeanas
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This looks generally good, only a couple minor questions above. |
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Thanks! I've made a small follow-up in #2626; it would be great if they could both land in the coming release. |
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Sure, this will all be in 2.18. |
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An improved `lean4` lexer is now part of pygments. This depends on pygments/pygments#2618 (now merged), and [a subsequent release](https://github.com/pygments/pygments/milestone/23)
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This is taken from https://github.com/leanprover/lean4/blob/d92948bc20b12f53542814c79469711ceff19fbf/doc/latex/lean4.py, with subsequent commits showing the changes made on top of this file
For that reason, I'd prefer if the history could be preserved; though I'd be happy to rewrite it if you want fewer commits / different message conventions.
The test file I'd added is the lean4 translation of the test file that was being used for Lean 3.
Since lean3 and lean4 files share a file extension, this adds
analyse_textmethods that discriminate based onimport Foovsimport foo; this is the same heuristic used by GitHub linguist.cc @Kha