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module GF.Infra.CompactPrint where
import Data.Char
compactPrint = compactPrintCustom keywordGF (const False)
compactPrintGFCC = compactPrintCustom (const False) keywordGFCC
compactPrintCustom pre post = dps . concat . map (spaceIf pre post) . words
dps = dropWhile isSpace
spaceIf pre post w = case w of
_ | pre w -> "\n" ++ w
_ | post w -> w ++ "\n"
c:cs | isAlpha c || isDigit c -> " " ++ w
_ -> w
keywordGF w = elem w ["cat","fun","lin","lincat","lindef","oper","param"]
keywordGFCC w =
last w == ';' ||
elem w ["flags","fun","cat","lin","oper","lincat","lindef","printname","param"]
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