"{ Package: 'squeak:petitparser' }"

PPLiteralParser subclass:#PPLiteralObjectParser
	instanceVariableNames:''
	classVariableNames:''
	poolDictionaries:''
	category:'PetitParser-Parsers'
!

PPLiteralObjectParser comment:'A parser that accepts a single literal object, such as a character. This is the same as the predicate parser ''PPPredicateParser expect: literal'' but slightly more efficient.'
!


!PPLiteralObjectParser methodsFor:'operators'!

caseInsensitive
	"Answer a parser that can parse the receiver case-insensitive."
	
	literal asUppercase = literal asLowercase ifTrue: [ ^ self ].
	^ PPPredicateObjectParser on: [ :value | literal sameAs: value ] message: message
! !

!PPLiteralObjectParser methodsFor:'parsing'!

parseOn: aStream
	^ (aStream atEnd not and: [ literal = aStream uncheckedPeek ])
		ifFalse: [ PPFailure message: message at: aStream position ]
		ifTrue: [ aStream next ]
! !

!PPLiteralObjectParser class methodsFor:'documentation'!

version_SVN
    ^ '$Id: PPLiteralObjectParser.st,v 1.1 2011-08-18 18:56:17 cg Exp $'
! !