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Better CLI error message when options are invalid

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This commit is contained in:
Keita Haga 2012-12-16 05:30:57 +09:00
commit 9564e7069b
1 changed files with 8 additions and 3 deletions
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11
compiler/commands.nim
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@ -64,8 +64,13 @@ proc writeCommandLineUsage() =
MsgWriteln(getCommandLineDesc())
helpWritten = true
proc addPrefix(switch: string): string =
if len(switch) == 1: result = "-" & switch
else: result = "--" & switch
proc InvalidCmdLineOption(pass: TCmdLinePass, switch: string, info: TLineInfo) =
LocalError(info, errInvalidCmdLineOption, switch)
if switch == " ": LocalError(info, errInvalidCmdLineOption, "-")
else: LocalError(info, errInvalidCmdLineOption, addPrefix(switch))
proc splitSwitch(switch: string, cmd, arg: var string, pass: TCmdLinePass,
info: TLineInfo) =
@ -97,10 +102,10 @@ proc ProcessOnOffSwitchG(op: TGlobalOptions, arg: string, pass: TCmdlinePass,
else: LocalError(info, errOnOrOffExpectedButXFound, arg)
proc ExpectArg(switch, arg: string, pass: TCmdLinePass, info: TLineInfo) =
if arg == "": LocalError(info, errCmdLineArgExpected, switch)
if arg == "": LocalError(info, errCmdLineArgExpected, addPrefix(switch))
proc ExpectNoArg(switch, arg: string, pass: TCmdLinePass, info: TLineInfo) =
if arg != "": LocalError(info, errCmdLineNoArgExpected, switch)
if arg != "": LocalError(info, errCmdLineNoArgExpected, addPrefix(switch))
proc ProcessSpecificNote(arg: string, state: TSpecialWord, pass: TCmdlinePass,
info: TLineInfo) =