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  1. GetOpt.au3 v1.3 If you've ever dabbled in C (or Python, Perl etc) then you might have heard of getopt() (Wiki entry). Well, I wrote this UDF to get that functionality into AutoIt. Some searching around here on the forum did turn up some other UDFs in this direction, but I decided to write my own port anyway and parallel the implementation in the C library. It's still missing a few things but on a whole it does the job really well. It's now pretty much complete. And I want to share it with you all. So here it is. If you want to handle the command line options passed to your script or program like a master, then this is the UDF for you! Main features: Parses DOS style options as well as GNU style options alike.Handles both short and long options.Define options that must have arguments when used.Define and handle suboptions (-s=foo,bar=quux,baz).Supports + and /- option modifiers.Casts string arguments to AutoIt variants, e.g. -a=yes becomes True.Easy access to any passed operand that's not an option.Some examples of invoking scripts: Script.au3 -a -b=10 --long-option file.txt Script.au3 /A /B:10 /Long-Option file.txtAs you see you can use both styles on the command line (as a matter of fact, at this moment you could even mix them but that wouldn't be good practice). In your script you just set the options you want to detect with _GetOpt_Set() and then iterate through each option with _GetOpt(). The 'file.txt' is available through _GetOpt_Oper(). See GetOpt-Example.au3 below for a step-by-step walkthrough of using GetOpt.au3. The UDF: GetOpt.au3 (+43) GetOpt-Example.au3: A demo of GetOpt.au3 #include <GetOpt.au3> #include <Array.au3> ; For demo purposes only. If 0 = $CmdLine[0] Then ; Create our own example command line. Run(FileGetShortName(@AutoItExe) & ' ' & FileGetShortName(@ScriptFullPath) & ' -a=no -b=42 -c=0.5 /Windows:' & @OSVersion & ' -z --required -s=foo,bar=quux,baz +p /-M -- -w=ignored Hello World!') Exit EndIf _GetOpt_Demo() Func _GetOpt_Demo() Local $sMsg = @ScriptName & ' for GetOpt v' & $GETOPT_VERSION & '.' & @CRLF & 'Parsing: ' & _ArrayToString($CmdLine, ' ', 1) & @CRLF & @CRLF; Message. Local $sOpt, $sSubOpt, $sOper ; Options array, entries have the format [short, long, default value] Local $aOpts[9][3] = [ _ ['-a', '--a-option', True], _ ['-b', '--b-option', False], _ ['-c', '--c-option', 'c option argument'], _ ['/W', '/Windows', 'windows style argument'], _ ; For demo purposes styles are mixed. ['-r', '--required', $GETOPT_REQUIRED_ARGUMENT], _ ; This option requires an argument. ['-s', '--suboption', $GETOPT_REQUIRED_ARGUMENT], _ ; option with suboptions. ['-p', '--plus', Default], _ ['/M', '/Minus', Default], _ ['-h', '--help', True] _ ] ; Suboptions array, entries have the format [suboption, default value] Local $aSubOpts[2][2] = [ _ ['foo', 47], _ ['bar', True] _ ] _GetOpt_Set($aOpts) ; Set options. If 0 < $GetOpt_Opts[0] Then ; If there are any options... While 1 ; ...loop through them one by one. ; Get the next option passing a string with valid options. $sOpt = _GetOpt('abcwr:s:pmh') ; r: means -r option requires an argument. If Not $sOpt Then ExitLoop ; No options or end of loop. ; Check @extended above if you want better error handling. ; The current option is stored in $GetOpt_Opt, it's index (in $GetOpt_Opts) ; in $GetOpt_Ind and it's value in $GetOpt_Arg. Switch $sOpt ; What is the current option? Case '?' ; Unknown options come here. @extended is set to $E_GETOPT_UNKNOWN_OPTION $sMsg &= 'Unknown option: ' & $GetOpt_Ind & ': ' & $GetOpt_Opt $sMsg &= ' with value "' & $GetOpt_Arg & '" (' & VarGetType($GetOpt_Arg) & ').' & @CRLF Case ':' ; Options with missing required arguments come here. @extended is set to $E_GETOPT_MISSING_ARGUMENT $sMsg &= 'Missing required argument for option: ' & $GetOpt_Ind & ': ' & $GetOpt_Opt & @CRLF Case 'a', 'b', 'c', 'w', 'p', 'm' $sMsg &= 'Option ' & $GetOpt_Ind & ': ' & $GetOpt_Opt $sMsg &= ' with value "' & $GetOpt_Arg & '" (' & VarGetType($GetOpt_Arg) & ')' If $GETOPT_MOD_PLUS = $GetOpt_Mod Then $sMsg &= ' and invoked with plus modifier (+' & $GetOpt_Opt & ')' ElseIf $GETOPT_MOD_MINUS = $GetOpt_Mod Then $sMsg &= ' and invoked with minus modifier (/-' & $GetOpt_Opt & ')' EndIf $sMsg &= '.' & @CRLF Case 'r' $sMsg &= 'Option ' & $GetOpt_Ind & ': ' & $GetOpt_Opt $sMsg &= ' with required value "' & $GetOpt_Arg & '" (' & VarGetType($GetOpt_Arg) & ')' If $GETOPT_MOD_PLUS = $GetOpt_Mod Then $sMsg &= ' and invoked with plus modifier (+' & $GetOpt_Opt & ')' ElseIf $GETOPT_MOD_MINUS = $GetOpt_Mod Then $sMsg &= ' and invoked with minus modifier (/-' & $GetOpt_Opt & ')' EndIf $sMsg &= '.' & @CRLF Case 's' $sMsg &= 'Option ' & $GetOpt_Ind & ': ' & $GetOpt_Opt $sMsg &= ' with required suboptions:' & @CRLF While 1 ; Loop through suboptions. $sSubOpt = _GetOpt_Sub($GetOpt_Arg, $aSubOpts) If Not $sSubOpt Then ExitLoop ; No suboptions or end of loop. ; Check @extended above if you want better error handling. ; The current suboption is stored in $GetOpt_SubOpt, it's index (in $GetOpt_SubOpts) ; in $GetOpt_SubInd and it's value in $GetOpt_SubArg. Switch $sSubOpt ; What is the current suboption? Case '?' $sMsg &= ' Unknown suboption ' & $GetOpt_SubInd & ': ' & $GetOpt_SubOpt $sMsg &= ' with value "' & $GetOpt_SubArg & '" (' & VarGetType($GetOpt_SubArg) & ').' & @CRLF Case 'foo', 'bar' $sMsg &= ' Suboption ' & $GetOpt_SubInd & ': ' & $GetOpt_SubOpt $sMsg &= ' with value "' & $GetOpt_SubArg & '" (' & VarGetType($GetOpt_SubArg) & ').' & @CRLF EndSwitch WEnd If $GETOPT_MOD_PLUS = $GetOpt_Mod Then $sMsg &= 'And invoked with plus modifier (+' & $GetOpt_Opt & ').' ElseIf $GETOPT_MOD_MINUS = $GetOpt_Mod Then $sMsg &= ' and invoked with minus modifier (/-' & $GetOpt_Opt & ')' EndIf Case 'h' MsgBox(0, 'GetOpt.au3', 'GetOpt.au3 example.' & @CRLF & _ 'Just try out some options and find out what happens!') Exit EndSwitch WEnd Else $sMsg &= 'No options passed.' & @CRLF EndIf $sMsg &= @CRLF If 0 < $GetOpt_Opers[0] Then ; If there are any operands... While 1 ; ...loop through them one by one. $sOper = _GetOpt_Oper() ; Get the next operand. If Not $sOper Then ExitLoop ; no operands or end of loop. ; Check @extended above if you want better error handling. $sMsg &= 'Operand ' & $GetOpt_OperInd & ': ' & $sOper & @CRLF WEnd Else $sMsg &= 'No operands passed.' & @CRLF EndIf MsgBox(0, @ScriptName, $sMsg) ; Let's see what we've got. _ArrayDisplay($GetOpt_Opts, '$GetOpt_Opts') _ArrayDisplay($GetOpt_Opers, '$GetOpt_Opers') _ArrayDisplay($GetOpt_ArgV, '$GetOpt_ArgV') Exit EndFunc Version 1.3: + Added support for -- (marks end of options). + Added support for + option modifiers e.g. +x. + Added support for /- option modifiers e.g. /-X. + Added _GetOpt_Sub to iterate through comma-separated suboptions like -s=a=foo,b=bar. * Changed $GETOPT_REQUIRED_ARGUMENT from keyword Default to Chr(127), keyword can now be used as an option argument. * Standardized comments and function headers. * Tidy-ed up source code. Version 1.2: + Support for required arguments with options, e.g. _GetOpt('ab:c') where -b=foo is valid and -b will return an error. + Added support for /C:foo (colon) when using DOS style. + Added optional auto-casting of arguments from Strings to AutoIt variants, e.g. -a=yes on the CLI would set the $GetOpt_Arg to True and not 'yes'. See __GetOpt_Cast. * Private __GetOpt_DOSToGNU to simplify code. Version 1.1: * Initial public release. If you encounter any bugs or have any suggestions, requests or improvements, then please let me know. Happy coding!
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