"

 COPYRIGHT (c) 2006 by eXept Software AG

              All Rights Reserved

 This software is furnished under a license and may be used

 only in accordance with the terms of that license and with the

 inclusion of the above copyright notice.   This software may not

 be provided or otherwise made available to, or used by, any

 other person.  No title to or ownership of the software is

 hereby transferred.

"

"{ Package: 'stx:libbasic' }"

"{ NameSpace: Smalltalk }"

Object subclass:#CmdLineParser

	classVariableNames:''

	poolDictionaries:''

	category:'System-Support-Command line'

!

!CmdLineParser class methodsFor:'documentation'!

copyright

"

 COPYRIGHT (c) 2006 by eXept Software AG

              All Rights Reserved

 This software is furnished under a license and may be used

 only in accordance with the terms of that license and with the

 inclusion of the above copyright notice.   This software may not

 be provided or otherwise made available to, or used by, any

 other person.  No title to or ownership of the software is

 hereby transferred.

"

! !

!CmdLineParser class methodsFor:'parsing'!

parse: argv for: object

    ^self new parse: argv for: object

    "Created: / 28-01-2009 / 12:06:04 / Jan Vrany <vranyj1@fel.cvut.cz>"

! !

!CmdLineParser methodsFor:'accessing'!

cmdlineOptionHelp

    ^CmdLineOption new

        short: $a;

        long: 'help';

        description: 'Prints short summary of available options';

        action:[self printHelp]

    "Created: / 08-06-2009 / 14:54:11 / Jan Vrany <vranyj1@fel.cvut.cz>"

!

options

    ^ options

!

options:something

    options := something.

! !

!CmdLineParser methodsFor:'building'!

on: spec description: description do: action

    | option |

    option := CmdLineOption new.

    option spec: spec.

    option description: description.

    option action: action.

    options isNil ifTrue:[options := OrderedCollection new].

    options add: option.

    "Created: / 14-06-2016 / 06:43:37 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

on: spec do: action

    ^ self on: spec description: nil do: action

    "Created: / 14-06-2016 / 07:02:56 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!CmdLineParser methodsFor:'error reporting'!

error: message option: option

    <resource: #skipInDebuggerWalkback>

    ^CmdLineOptionError new

        errorString: message;

        parameter: option;

        raise

    "Created: / 08-06-2009 / 14:22:19 / Jan Vrany <vranyj1@fel.cvut.cz>"

!

errorOptionHasNoArgument:option 

    self error:'option has no argument' option:option

    "Created: / 08-06-2009 / 14:27:49 / Jan Vrany <vranyj1@fel.cvut.cz>"

!

errorOptionRequiresArgument:option 

    self error:'option requires an argument' option:option

! !

!CmdLineParser methodsFor:'initialization'!

collectOptionsFrom: anObject

    options := CmdLineOption optionsFor: anObject

    "Created: / 08-06-2009 / 13:06:23 / Jan Vrany <vranyj1@fel.cvut.cz>"

    "Modified: / 06-11-2011 / 21:40:11 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!CmdLineParser methodsFor:'parsing'!

    "

    "

    "Created: / 28-01-2009 / 12:08:29 / Jan Vrany <vranyj1@fel.cvut.cz>"

    "Modified: / 08-06-2009 / 13:26:26 / Jan Vrany <vranyj1@fel.cvut.cz>"

!

parse: argv for: object

     "

      Parses argv array. Returns array of unparsed (i.e. non-option)

      arguments. Options are obtained from given object

     "

    ^self 

        collectOptionsFrom: object;

        parse: argv

    "Created: / 28-01-2009 / 11:50:27 / Jan Vrany <vranyj1@fel.cvut.cz>"

    "Modified: / 08-06-2009 / 13:07:59 / Jan Vrany <vranyj1@fel.cvut.cz>"

!

parse:argv options: opts

    "

      Parses argv array. Returns array of unparsed (i.e. non-option)

      arguments. Options are obtained from given object

    "

    options := opts.

    ^self parse: argv

    "Created: / 29-05-2009 / 15:51:41 / Jan Vrany <vranyj1@fel.cvut.cz>"

    "Modified: / 08-06-2009 / 13:08:12 / Jan Vrany <vranyj1@fel.cvut.cz>"

! !

!CmdLineParser methodsFor:'printing & storing'!

printHelp

    ^self printHelpOn: Stdout

    "Created: / 08-06-2009 / 14:55:52 / Jan Vrany <vranyj1@fel.cvut.cz>"

!

printHelpOn: stream

    stream nextPutAll:'help...'; cr.

    "Created: / 08-06-2009 / 14:56:00 / Jan Vrany <vranyj1@fel.cvut.cz>"

! !

!CmdLineParser methodsFor:'private'!

optionByLong:longName 

    ^ options 

        detect:[:option | option long = longName ]

        ifNone:[ 

            longName = 'help' 

                ifTrue:[self cmdlineOptionHelp]

    "Created: / 30-01-2009 / 09:15:24 / Jan Vrany <vranyj1@fel.cvut.cz>"

    "Modified: / 08-06-2009 / 14:57:42 / Jan Vrany <vranyj1@fel.cvut.cz>"

!

optionByShort:shortName 

    ^ options 

        detect:[:option | option short = shortName ]

        ifNone:

            [ shortName == $h 

                ifTrue:[self cmdlineOptionHelp]

    "Created: / 30-01-2009 / 09:16:51 / Jan Vrany <vranyj1@fel.cvut.cz>"

    "Modified: / 08-06-2009 / 14:58:14 / Jan Vrany <vranyj1@fel.cvut.cz>"

!

    |arg option param|

    arg := argv at:index.

        2 to:arg size do:[:subIndex | 

            option := self optionByShort:(arg at:subIndex).

        | equalPos |

        (equalPos := arg indexOf:$=) == 0 ifTrue:[

            "/no arg specified

                    option hasParam ifTrue:[self errorOptionRequiresArgument:option].

        ] ifFalse: [

            option := self optionByLong:(arg copyFrom:3 to: equalPos - 1).

            param := arg copyFrom: equalPos + 1.

! !

!CmdLineParser class methodsFor:'documentation'!

version

    ^'$Header: /cvs/stx/stx/libbasic/CmdLineParser.st,v 1.5 2015-02-13 22:48:41 cg Exp $'

!

version_HG

    ^ '$Changeset: <not expanded> $'

!

version_SVN

    ^ '$Id: CmdLineParser.st,v 1.5 2015-02-13 22:48:41 cg Exp $'

! !