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|
----------------------------------------------------------------------
-- |
-- Module : (Module)
-- Maintainer : (Maintainer)
-- Stability : (stable)
-- Portability : (portable)
--
-- > CVS $Date $
-- > CVS $Author $
-- > CVS $Revision $
--
-- Compile HelpFile.hs from HelpFile.
-----------------------------------------------------------------------------
module Main where
main = do
s <- readFile "HelpFile"
let s' = mkHsFile (lines s)
writeFile "HelpFile.hs" s'
mkHsFile ss =
helpHeader ++
"module HelpFile where\n\n" ++
"import Operations\n\n" ++
"txtHelpFileSummary =\n" ++
" unlines $ map (concat . take 1 . lines) $ paragraphs txtHelpFile\n\n" ++
"txtHelpCommand c =\n" ++
" case lookup c [(takeWhile (/=',') p,p) | p <- paragraphs txtHelpFile] of\n" ++
" Just s -> s\n" ++
" _ -> \"Command not found.\"\n\n" ++
"txtHelpFile =\n" ++
unlines (map mkOne ss) ++
" []"
mkOne s = " \"" ++ pref s ++ (escs s) ++ "\" ++"
where
pref (' ':_) = "\\n"
pref _ = "\\n" ---
escs [] = []
escs (c:cs) | elem c "\"\\" = '\\':c:escs cs
escs (c:cs) = c:escs cs
helpHeader = unlines [
"----------------------------------------------------------------------",
"-- |",
"-- Module : HelpFile",
"-- Maintainer : Aarne Ranta",
"-- Stability : (stable)",
"-- Portability : (portable)",
"--",
"-- > CVS $Date $",
"-- > CVS $Author $",
"-- > CVS $Revision $",
"--",
"-- Help on shell commands. Generated from HelpFile by 'make help'.",
"-----------------------------------------------------------------------------",
"",
""
]
|
