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Replace take... functions with many...

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They are less efficient but they are giving me issues because they don't
fail. Once this is working I'll look into optimizing.

Also disable skipping comments until I figure out how to skip both
comments and space at the same time.
This commit is contained in:
Danny Navarro 2015-09-14 13:04:06 +02:00
parent 62adfd89cd
commit c0b6fc8a05
1 changed files with 12 additions and 11 deletions
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23
Data/GraphQL/Parser.hs
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@ -5,7 +5,7 @@ import Prelude hiding (takeWhile)
import Control.Applicative (Alternative, (<|>), empty, many, optional) import Control.Applicative (Alternative, (<|>), empty, many, optional)
import Data.Char import Data.Char
import Data.Text (Text) import Data.Text (Text, pack)
import Data.Attoparsec.Text import Data.Attoparsec.Text
( Parser ( Parser
, (<?>) , (<?>)
@ -14,6 +14,7 @@ import Data.Attoparsec.Text
, double , double
, endOfLine , endOfLine
, isEndOfLine , isEndOfLine
, letter
, many1 , many1
, manyTill , manyTill
, option , option
@ -36,8 +37,10 @@ import Data.GraphQL.AST
-- XXX: Handle starting `_` and no number at the beginning: -- XXX: Handle starting `_` and no number at the beginning:
-- https://facebook.github.io/graphql/#sec-Names -- https://facebook.github.io/graphql/#sec-Names
-- TODO: Use takeWhile1 instead for efficiency. With takeWhile1 there is no
-- parsing failure.
name :: Parser Name name :: Parser Name
name = tok $ takeWhile1 isAlphaNum name = tok $ pack <$> many1 (satisfy isAlphaNum)
-- * Document -- * Document
@ -144,14 +147,14 @@ typeCondition = namedType
-- * Values -- * Values
-- This will try to pick the first type it can parse. If you are working with -- This will try to pick the first type it can parse. If you are working with
-- explicit types use the `typedValue` parser. -- explicit types use the `typedValue` parser.
value :: Parser Value value :: Parser Value
value = -- TODO: Handle arbitrary precision. value = -- TODO: Handle arbitrary precision.
ValueInt <$> signed decimal ValueInt <$> signed decimal
<|> ValueFloat <$> signed double <|> ValueFloat <$> signed double
<|> ValueBoolean <$> bool <|> ValueBoolean <$> bool
-- TODO: Handle escape characters, unicode, etc -- TODO: Handle escape characters, unicode, etc
<|> ValueString <$ "\"" <*> takeWhile isAlphaNum <* "\"" <|> ValueString <$ "\"" <*> (pack <$> many anyChar) <* "\""
-- `true` and `false` have been tried before -- `true` and `false` have been tried before
<|> ValueEnum <$> name <|> ValueEnum <$> name
<|> ValueList <$> listValue <|> ValueList <$> listValue
@ -315,13 +318,11 @@ optempty = option mempty
-- ** WhiteSpace -- ** WhiteSpace
-- --
whiteSpace :: Parser () whiteSpace :: Parser ()
whiteSpace = comments whiteSpace =
<|> skipWhile (\c -> isSpace c skipMany (satisfy (\c -> isSpace c || ',' == c || isEndOfLine c))
|| ',' == c
|| isEndOfLine c)
comments :: Parser () skipComments :: Parser ()
comments = skipMany comment skipComments = skipMany comment
comment :: Parser Text comment :: Parser Text
comment = "#" *> takeTill isEndOfLine comment = "#" *> (pack <$> manyTill anyChar endOfLine)