Remove cariage return from the qq string
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This commit is contained in:
Eugen Wissner 2023-08-05 18:04:23 +02:00
parent 9b11300d23
commit 5ac02fc505
3 changed files with 37 additions and 4 deletions

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@ -85,6 +85,7 @@ test-suite graphql-test
Language.GraphQL.Execute.CoerceSpec
Language.GraphQL.Execute.OrderedMapSpec
Language.GraphQL.ExecuteSpec
Language.GraphQL.THSpec
Language.GraphQL.Type.OutSpec
Language.GraphQL.Validate.RulesSpec
Schemas.HeroSchema

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@ -12,17 +12,26 @@ import Language.Haskell.TH (Exp(..), Lit(..))
stripIndentation :: String -> String
stripIndentation code = reverse
$ dropNewlines
$ dropWhile isLineBreak
$ reverse
$ unlines
$ indent spaces <$> lines withoutLeadingNewlines
$ indent spaces <$> lines' withoutLeadingNewlines
where
indent 0 xs = xs
indent count (' ' : xs) = indent (count - 1) xs
indent _ xs = xs
withoutLeadingNewlines = dropNewlines code
dropNewlines = dropWhile $ flip any ['\n', '\r'] . (==)
withoutLeadingNewlines = dropWhile isLineBreak code
spaces = length $ takeWhile (== ' ') withoutLeadingNewlines
lines' "" = []
lines' string =
let (line, rest) = break isLineBreak string
reminder =
case rest of
[] -> []
'\r' : '\n' : strippedString -> lines strippedString
_ : strippedString -> lines strippedString
in line : reminder
isLineBreak = flip any ['\n', '\r'] . (==)
-- | Removes leading and trailing newlines. Indentation of the first line is
-- removed from each line of the string.

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@ -0,0 +1,23 @@
{- This Source Code Form is subject to the terms of the Mozilla Public License,
v. 2.0. If a copy of the MPL was not distributed with this file, You can
obtain one at https://mozilla.org/MPL/2.0/. -}
{-# LANGUAGE QuasiQuotes #-}
module Language.GraphQL.THSpec
( spec
) where
import Language.GraphQL.TH (gql)
import Test.Hspec (Spec, describe, it, shouldBe)
spec :: Spec
spec =
describe "gql" $
it "replaces CRNL with NL" $
let expected = "line1\nline2"
actual = [gql|
line1
line2
|]
in actual `shouldBe` expected