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remove magic numbers

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This commit is contained in:
Joey Hess 2010-12-30 15:12:55 -04:00
parent a89a6f2114
commit c274aadabc
1 changed files with 5 additions and 2 deletions
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7
CmdLine.hs
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@ -57,9 +57,12 @@ usage header cmds options =
cmddescs = unlines $ map (indent . showcmd) cmds
showcmd c =
cmdname c ++
pad 11 (cmdname c) ++
pad (commandlen + 1) (cmdname c) ++
cmdparams c ++
pad 13 (cmdparams c) ++
pad (commandparamlen + 2) (cmdparams c) ++
cmddesc c
indent l = " " ++ l
pad n s = replicate (n - length s) ' '
longest l = foldl max 0 $ map length l
commandlen = longest $ map cmdname cmds
commandparamlen = longest $ map cmdparams cmds