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MissingH.Parsec | Portability | portable | Stability | provisional | Maintainer | John Goerzen <jgoerzen@complete.org> |
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Description |
Written by John Goerzen, jgoerzen@complete.org
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Synopsis |
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Generalized Utilities
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These functions are generalized versions of
ones you might see in the Char parser.
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type GeneralizedToken a = (SourcePos, a) |
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type GeneralizedTokenParser a st b = GenParser (GeneralizedToken a) st b |
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togtok :: a -> GenParser b st (GeneralizedToken a) |
Generate (return) a GeneralizedToken.
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tokeng :: Show a => (a -> Maybe b) -> GeneralizedTokenParser a st b |
Retrieve the next token from a GeneralizedToken stream.
The given function should return the value to use, or Nothing
to cause an error.
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satisfyg :: Show a => (a -> Bool) -> GeneralizedTokenParser a st a |
A shortcut to tokeng; the test here is just a function that returns
a Bool. If the result is true; return that value -- otherwise, an error.
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oneOfg :: (Eq a, Show a) => [a] -> GeneralizedTokenParser a st a |
Matches one item in a list and returns it.
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noneOfg :: (Eq a, Show a) => [a] -> GeneralizedTokenParser a st a |
Matches one item not in a list and returns it.
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specificg :: (Eq a, Show a) => a -> GeneralizedTokenParser a st a |
Matches one specific token and returns it.
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allg :: Show a => GeneralizedTokenParser a st [a] |
Matches all items and returns them
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Other Utilities
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notMatching :: GenParser a b c -> String -> GenParser a b () |
Running notMatching p msg will try to apply parser p.
If it fails, returns (). If it succeds, cause a failure and raise
the given error message. It will not consume input in either case.
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Produced by Haddock version 0.8 |