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Import: haskell: Properly highlight promoted data constructors #21

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May 11, 2019
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Import: haskell: Properly highlight promoted data constructors #21

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haskell: Properly highlight promoted data constructors 
Unfortunately there is a bit of ambiguity with char literals.
For instance, the data constructor `A'` would be `'A'` in promoted form.
This will still be highlighted as as char literal but this is the best
we can do without more context.
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@bgamari
bgamari committed Nov 1, 2018
commit be79c58ac13042496ad50b167ab5217296e65150
1 change: 1 addition & 0 deletions lib/rouge/lexers/haskell.rb
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Expand Up @@ -61,6 +61,7 @@ def self.detect?(text)
# rule /^[_a-z][\w']*/, Name::Function
rule /[_a-z][\w']*/, Name
rule /[A-Z][\w']*/, Keyword::Type
rule /'[A-Z]\w[\w']*/, Keyword::Type # promoted data constructor

# lambda operator
rule %r(\\(?![:!#\$\%&*+.\\/<=>?@^\|~-]+)), Name::Function
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