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@@ -160,7 +160,7 @@ sexprSum :: Num a => WellFormedSExpr a -> a
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If you are using GHC 7.10, several of these will be powerful
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bidirectional pattern synonyms that allow both constructing and
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-pattern-matchhing on s-expressions in non-trivial ways:
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+pattern-matching on s-expressions in non-trivial ways:
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~~~~.haskell
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>>> import Data.SCargot.Repr.Basic
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@@ -220,6 +220,15 @@ Right [SCons (SAtom (Ident "foo")) (SCons (SAtom (Num 1)) SNil)]
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"(0 bar)"
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~~~~
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+Several common atom types appear in the module
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+[`Data.SCargot.Common`](https://hackage.haskell.org/package/s-cargot-0.1.0.0/docs/Data-SCargot-Common.html),
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+including various kinds of identifiers and number literals. The
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+long-term plan for S-Cargot is to include more and more kinds of
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+built-in atoms, in order to make putting together an S-Expression
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+parser even easier. If you have a common syntax for an atom type
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+that you think should be represented there, please
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+[suggest it in an issue](https://github.com/aisamanra/s-cargot/issues)!
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+
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## Carrier Types
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As pointed out above, there are three different carrier types that are
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@@ -293,6 +302,27 @@ For example, the following adds C++-style comments to an S-expression format:
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Right [SCons (SAtom "a") (SCons (SAtom "b") SNil)]
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~~~~
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+The
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+[`Data.SCargot.Comments`](https://hackage.haskell.org/package/s-cargot/docs/Data-SCargot-Comments.html)
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+module defines some helper functions for creating comment syntaxes, so the
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+`cppComment` parser above could be defined as simply
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+
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+~~~~.haskell
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+>>> let cppComment = lineComment "//"
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+>>> decode (setComment cppComment basicParser) "(a //comment\n b)\n"
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+Right [SCons (SAtom "a") (SCons (SAtom "b") SNil)]
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+~~~~
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+
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+Additionally, a handful of common comment syntaxes are defined in
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+[`Data.SCargot.Comments`](https://hackage.haskell.org/package/s-cargot/docs/Data-SCargot-Comments.html),
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+including C-style, Haskell-style, and generic scripting-language-style
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+comments, so in practice, we could write the above example as
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+
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+~~~~.haskell
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+>>> decode (withCLikeLineComments basicParser) "(a //comment\n b)\n"
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+Right [SCons (SAtom "a") (SCons (SAtom "b") SNil)]
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+~~~~
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+
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## Reader Macros
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A _reader macro_ is a Lisp macro---a function that operates on syntactic
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Getty Ritter