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tweak

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This commit is contained in:
Joey Hess 2010-12-30 15:15:22 -04:00
parent c274aadabc
commit 1c451fe362
1 changed files with 3 additions and 5 deletions
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8
CmdLine.hs
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@ -57,12 +57,10 @@ usage header cmds options =
cmddescs = unlines $ map (indent . showcmd) cmds cmddescs = unlines $ map (indent . showcmd) cmds
showcmd c = showcmd c =
cmdname c ++ cmdname c ++
pad (commandlen + 1) (cmdname c) ++ pad (longest cmdname + 1) (cmdname c) ++
cmdparams c ++ cmdparams c ++
pad (commandparamlen + 2) (cmdparams c) ++ pad (longest cmdparams + 2) (cmdparams c) ++
cmddesc c cmddesc c
indent l = " " ++ l indent l = " " ++ l
pad n s = replicate (n - length s) ' ' pad n s = replicate (n - length s) ' '
longest l = foldl max 0 $ map length l longest f = foldl max 0 $ map (length . f) cmds
commandlen = longest $ map cmdname cmds
commandparamlen = longest $ map cmdparams cmds