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semantic/app/Parsers.hs
2015-12-24 00:20:47 -05:00

25 lines
787 B
Haskell

module Parsers where
import Diff
import Range
import Parser
import Source hiding ((++))
import Syntax
import TreeSitter
import Control.Comonad.Cofree
import Data.Foldable
parserForType :: String -> Parser
parserForType mediaType = maybe lineByLineParser parseTreeSitterFile $ languageForType mediaType
lineByLineParser :: Parser
lineByLineParser input = return . root . Indexed $ case foldl' annotateLeaves ([], 0) lines of
(leaves, _) -> leaves
where
lines = actualLines input
root syntax = Info (Range 0 $ length input) mempty :< syntax
leaf charIndex line = Info (Range charIndex $ charIndex + length line) mempty :< Leaf (Source.toList line)
annotateLeaves (accum, charIndex) line =
(accum ++ [ leaf charIndex line ]
, charIndex + length line + 1)