module Main (main) where
main = do
s <- readFile "HelpFile"
let s' = mkHsFile (lines s)
writeFile "GF/Shell/HelpFile.hs" s'
mkHsFile ss =
helpHeader ++
"module GF.Shell.HelpFile where\n\n" ++
"import GF.Data.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
| fromEnum c > 127 = "\\" ++show (fromEnum c)++escs cs
escs (c:cs) = c:escs cs
helpHeader = unlines [
"----------------------------------------------------------------------",
"-- |",
"-- Module : GF.Shell.HelpFile",
"-- Maintainer : Aarne Ranta",
"-- Stability : (stable)",
"-- Portability : (portable)",
"--",
"-- > CVS $Date: 2005/05/12 10:03:34 $",
"-- > CVS $Author: aarne $",
"-- > CVS $Revision: 1.9 $",
"--",
"-- Help on shell commands. Generated from HelpFile by 'make help'.",
"-- PLEASE DON'T EDIT THIS FILE.",
"-----------------------------------------------------------------------------",
"",
""
]