"{ Package: 'stx:goodies/petitparser' }"!

!Block methodsFor:'*petitparser-core-converting'!

asParser

	^ PPPluggableParser on: self

! !

!BlockContext methodsFor:'*petitparser-core-converting'!

asParser

	^ PPPluggableParser on: self

! !

!Character methodsFor:'arithmetic'!

- aMagnitude

    "Return the Character that is <aMagnitude> lower than the receiver.

     Wrap if the resulting value is not a legal Character value. (JS)

     claus:

        modified to return the difference as integer, if the argument

        is another character. If the argument is a number, a character is

        returned."

    aMagnitude isCharacter ifTrue:[

        ^ asciivalue - aMagnitude asInteger

    ].

    ^ Character codePoint:((asciivalue - aMagnitude asInteger) \\ 16r3FFFFFFF)

    "

     $z - $a

     $d - 3

    "

    "Modified: / 27-06-1996 / 12:35:34 / cg"

    "Modified: / 19-12-2010 / 18:36:56 / Jan Kurs <kurs.jan@post.cz>"

! !

!Character methodsFor:'*petitparser-converting'!

asParser

	^ PPLiteralObjectParser on: self

! !

!Character methodsFor:'arithmetic'!

ppMinus: aCharacter

    "Create a range of characters between the receiver and the argument."

    ^ PPPredicateObjectParser between: self and: aCharacter

    "Created: / 19-12-2010 / 18:13:19 / Jan Kurs <kurs.jan@post.cz>"

! !

!Object methodsFor:'*petitparser-core-converting'!

asParser

	^ PPPredicateObjectParser expect: self

! !

!Object methodsFor:'*petitparser-core-testing'!

isPetitFailure

	^ false

! !

!Object methodsFor:'*petitparser-core-testing'!

isPetitParser

	^ false

! !

!PositionableStream methodsFor:'*petitparser-core-converting'!

asPetitStream

        "Some of my subclasses do not use the instance-variables collection, position and readLimit but instead have a completely different internal representation. In these cases just use the super implementation that is inefficient but should work in all cases."

        "DUNNO WHY, but on: collection from: position to: last set the start to position -1"

        self breakPoint: #petitparser.

        ^ (collection isNil or: [ position  isNil or: [ readLimit isNil ] ])

                ifFalse: [ PPStream on: collection from: (position +1) to: readLimit ]

                ifTrue: [ super asPetitStream ]

"/        ^ (collection isNil or: [ position isNil or: [ readLimit isNil ] ])

"/                ifFalse: [ PPStream on: collection from: position to: readLimit ]

"/                ifTrue: [ super asPetitStream ]

    "Modified: / 18-12-2010 / 17:38:01 / Jan Kurs <kurs.jan@post.cz>"

! !

!SequenceableCollection methodsFor:'*petitparser-core-converting'!

asParser

	^ PPSequenceParser withAll: (self collect: [ :each | each asParser ])

! !

!SequenceableCollection methodsFor:'*petitparser-core-converting'!

asPetitStream

	^ PPStream on: self

! !

!Set methodsFor:'*petitparser-core-converting'!

asParser

	^ PPChoiceParser withAll: (self collect: [ :each | each asParser ])

! !

!Stream methodsFor:'*petitparser-core-converting'!

asPetitStream

	^ self contents asPetitStream

! !

!String methodsFor:'*petitparser-core-converting'!

asParser

	^ PPLiteralSequenceParser on: self

! !

!Symbol methodsFor:'*petitparser-core-converting'!

asParser

	^ PPPredicateObjectParser perform: self

! !

!Symbol methodsFor:'Compatibility-Squeak'!

value:anObject

    ^ anObject perform: self.

    "Created: / 18-12-2010 / 16:47:22 / Jan Kurs <kurs.jan@post.cz>"

! !

!Text methodsFor:'*petitparser-core'!

asPetitStream

	^ string asPetitStream

! !

!UndefinedObject methodsFor:'*petitparser-converting'!

asParser

	^ PPEpsilonParser new

! !

!stx_goodies_petitparser class methodsFor:'documentation'!

extensionsVersion_CVS

    ^ '$Header: /cvs/stx/stx/goodies/petitparser/extensions.st,v 1.4 2012-05-04 22:14:41 vrany Exp $'

! !