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Update Crystal lexer #1650

Merged
merged 7 commits into from Jan 4, 2021
Merged

Update Crystal lexer #1650

merged 7 commits into from Jan 4, 2021

Commits on Dec 28, 2020

  1. crystal: drop all classes from builtins; these aren't normally highli… 

    …ghted

("normally" meaning all other highlighter tools)
    @oprypin
    oprypin committed Dec 28, 2020
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  2. crystal: fix percent-strings, drop Ruby-specific arbitrary delimiters 

    It seems that Ruby supports strings such as `%*text*` where `*` can be anything. But Crystal never had anything like that. It does, however, keep `%|text|`, so add a case for that.
    @oprypin
    oprypin committed Dec 28, 2020
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  3. crystal: update keywords and builtins

    @oprypin
    oprypin committed Dec 28, 2020
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  4. crystal: fix string literals and escape sequences 

    Update list of escapes. Support Unicode escape sequences.

Also remove the Ruby-specific `:@foo` symbol syntax, Crystal doesn't have it.
    @oprypin
    oprypin committed Dec 28, 2020
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  5. crystal: uppercase identifiers aren't always constants 

    Make `FOO::Bar` be highlighted like `Foo::Bar` would be, rather than like `FOO`
    @oprypin
    oprypin committed Dec 28, 2020
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  6. crystal: annotations can be namespaced 

    Highlight the entire inside part of `@[Foo::Bar]`, not just the `Foo` part

(these used to be named 'attributes' but the official name is 'annotations' now, so I also change that)
    @oprypin
    oprypin committed Dec 28, 2020
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  7. fixup! crystal: fix percent-strings, drop Ruby-specific arbitrary del… 

    …imiters
    @oprypin
    oprypin committed Dec 28, 2020
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