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pipes-parse builds upon
pipes library to
provide shared streaming parsing utilities.
- Install the Haskell Platform
cabal install pipes-parse
cabal install lens-family-core
Then fire up
Prelude> import Pipes Prelude Pipes> import Pipes.Parse as Parse Prelude Pipes Parse> import Lens.Family.State.Strict as Lens
... and draw the first group of consecutive equal elements:
Prelude Pipes Parse Lens> evalStateT (zoom group drawAll) (each [1, 1, 2, 3]) [1,1]
The official tutorial is on Hackage.
Leftovers: Save unused input for later consumption
Leftover propagation: Leftovers are propagated backwards perfectly
Connect and Resume: Use
StateTto save unused input for later
Termination Safety: Detect and recover from end of input
pipes-parse provides the core idioms for how to parse streams using
Stream-specific parsers are provided in downstream libraries, such as
The core mechanism behind
pipes-parse is stable. I may accept requests for
additional generic parsers, but the central idioms will not change. Most
development work concentrates on downstream libraries to provide stream-specific
Use the same resources as the core
pipes library to learn more, contribute, or
How to contribute
Build derived libraries
License (BSD 3-clause)
Copyright (c) 2013 Gabriel Gonzalez All rights reserved.
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
Neither the name of Gabriel Gonzalez nor the names of other contributors may be used to endorse or promote products derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*Note that all licence references and agreements mentioned in the pipes-parse README section above are relevant to that project's source code only.