"{ Package: 'squeak:petitparser' }"
PPLiteralParser subclass:#PPLiteralSequenceParser
instanceVariableNames:'size'
classVariableNames:''
poolDictionaries:''
category:'PetitParser-Parsers'
!
PPLiteralSequenceParser comment:'A parser accepts a sequence of literal objects, such as a String. This is an optimization to avoid having to compose longer sequences from PPSequenceParser.'
!
!PPLiteralSequenceParser methodsFor:'accessing'!
size
"Answer the sequence size of the receiver."
^ size
! !
!PPLiteralSequenceParser methodsFor:'initialization'!
initializeOn: anObject message: aString
super initializeOn: anObject message: aString.
size := literal size
! !
!PPLiteralSequenceParser methodsFor:'operators'!
caseInsensitive
"Answer a parser that can parse the receiver case-insensitive."
literal asUppercase = literal asLowercase ifTrue: [ ^ self ].
^ PPPredicateSequenceParser on: [ :value | literal sameAs: value ] message: message size: size
! !
!PPLiteralSequenceParser methodsFor:'parsing'!
parseOn: aStream
| position result |
position := aStream position.
result := aStream next: size.
literal = result ifTrue: [ ^ result ].
aStream position: position.
^ PPFailure message: message at: aStream position
! !
!PPLiteralSequenceParser class methodsFor:'documentation'!
version_SVN
^ '$Id: PPLiteralSequenceParser.st,v 1.1 2011-08-18 18:56:17 cg Exp $'
! !