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crumbtoo
2023-11-28 12:19:04 -07:00
parent 8b61856977
commit b05f17de13
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docs/src/commentary/layout-lexing.rst
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@@ -21,8 +21,7 @@ potential roadblocks on my mind before making an attempt were:
* Context-sensitive keywords; Haskell allows for some words to be used as identifiers in
appropriate contexts, such as :code:`family`, :code:`role`, :code:`as`.
Reading a note_ found in `GHC's lexer
<https://gitlab.haskell.org/ghc/ghc/-/blob/master/compiler/GHC/Parser/Lexer.x#L1133>`_,
Reading a note_ found in `GHC's lexer`_,
it appears that keywords are only considered in bodies for which their use is
relevant, e.g. :code:`family` and :code:`role` in type declarations,
:code:`as` after :code:`case`; :code:`if`, :code:`then`, and :code:`else` in
@@ -33,6 +32,7 @@ potential roadblocks on my mind before making an attempt were:
section code in a way that *felt* different.
.. _note: https://gitlab.haskell.org/ghc/ghc/-/wikis/commentary/coding-style#2-using-notes
.. _GHC's lexer: https://gitlab.haskell.org/ghc/ghc/-/blob/master/compiler/GHC/Parser/Lexer.x#L1133
After a bit of thought and research, whitespace sensitivity in the form of
*layouts* as Haskell and I will refer to them as, are easily the scariest thing