text / tests / benchmarks / StripBrackets.hs

The default branch has multiple heads

-- From Petr Prokhorenkov.

import Data.Text as T
import Data.Text.IO as T

stripBrackets :: T.Text -> T.Text
stripBrackets text = snd $ T.mapAccumL f 0 text where
   f depth c = let
       depth' = depth + d' c
       c' | depth > 0 || depth' > 0 = ' '
          | otherwise = c
       in
       (depth', c')

   d' '{' = 1
   d' '[' = 1
   d' '}' = -1
   d' ']' = -1
   d' _   = 0

main = T.interact stripBrackets
Tip: Filter by directory path e.g. /media app.js to search for public/media/app.js.
Tip: Use camelCasing e.g. ProjME to search for ProjectModifiedEvent.java.
Tip: Filter by extension type e.g. /repo .js to search for all .js files in the /repo directory.
Tip: Separate your search with spaces e.g. /ssh pom.xml to search for src/ssh/pom.xml.
Tip: Use ↑ and ↓ arrow keys to navigate and return to view the file.
Tip: You can also navigate files with Ctrl+j (next) and Ctrl+k (previous) and view the file with Ctrl+o.
Tip: You can also navigate files with Alt+j (next) and Alt+k (previous) and view the file with Alt+o.