First draft

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Tissevert 2020-08-19 18:45:46 +02:00
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CHANGELOG.md Normal file
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# Revision history for alphabetDistance
## 0.1.0.0 -- YYYY-mm-dd
* First version. Released on an unsuspecting world.

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LICENSE
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Copyright (c) <year> <owner> . All rights reserved. Copyright (c) 2020, Tissevert
Redistribution and use in source and binary forms, with or without modification, All rights reserved.
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, Redistribution and use in source and binary forms, with or without
this list of conditions and the following disclaimer. modification, are permitted provided that the following conditions are met:
2. Redistributions in binary form must reproduce the above copyright notice, * Redistributions of source code must retain the above copyright
this list of conditions and the following disclaimer in the documentation notice, this list of conditions and the following disclaimer.
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors * Redistributions in binary form must reproduce the above
may be used to endorse or promote products derived from this software without copyright notice, this list of conditions and the following
specific prior written permission. disclaimer in the documentation and/or other materials provided
with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * Neither the name of Tissevert nor the names of other
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE contributors may be used to endorse or promote products derived
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE from this software without specific prior written permission.
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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# alphabetDistance # alphabetDistance
A library to implement a norm and a distance on strings useful to quantify intervals in dictionaries. A library to implement a norm and a distance on strings useful to quantify intervals in dictionaries.

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Setup.hs Normal file
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import Distribution.Simple
main = defaultMain

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cabal-version: >=1.10
-- Initial package description 'alphabetDistance.cabal' generated by 'cabal
-- init'. For further documentation, see
-- http://haskell.org/cabal/users-guide/
name: alphabetDistance
version: 0.1.0.0
synopsis: A library to implement a norm and a distance on strings useful to quantify intervals in dictionaries
-- description:
homepage: https://git.marvid.fr/~Tissevert/alphabetDistance
-- bug-reports:
license: BSD3
license-file: LICENSE
author: Tissevert
maintainer: tissevert+devel@marvid.fr
-- copyright:
category: Text
build-type: Simple
extra-source-files: CHANGELOG.md
library
exposed-modules: Text.AlphabetDistance
-- other-modules:
-- other-extensions:
build-depends: base >=4.11 && <4.12
hs-source-dirs: lib
default-language: Haskell2010
test-suite alphabetDistance-test
default-language: Haskell2010
type: exitcode-stdio-1.0
hs-source-dirs: test
main-is: MyLibTest.hs
build-depends: base >=4.11 && <4.12

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module Text.AlphabetDistance (
distance
, norm
) where
import Data.Char (toLower)
rank :: Char -> Int
rank c = 1 + fromEnum (toLower c) - fromEnum 'a'
norm :: String -> Float
norm "" = 0
norm (c:cs) = (fromIntegral (rank c) + norm cs) / 27
distance :: String -> String -> Float
distance "" "" = 0
distance "" s = norm s
distance s "" = norm s
distance (ca:sa) (cb:sb) = (abs $ fromIntegral (rank ca - rank cb) + distance sa sb) / 27

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module Main (main) where
main :: IO ()
main = putStrLn "Test suite not yet implemented."