Initial commit of PetitJava
Name: PetitJava-JanKurs.160
Author: JanKurs
Time: 19-12-2014, 01:00:18.354 PM
UUID: 1cb1b46d-8c68-4751-9720-f0dd742f3e16
"{ Package: 'stx:goodies/petitparser' }"
"{ NameSpace: Smalltalk }"
PPParser subclass:#PPStartOfWordParser
instanceVariableNames:''
classVariableNames:''
poolDictionaries:''
category:'PetitParser-Parsers'
!
!PPStartOfWordParser methodsFor:'as yet unclassified'!
acceptsEpsilon
^ true
!
parseOn: aPPContext
aPPContext atEnd ifTrue: [
^ PPFailure message: 'Start of word expected' context: aPPContext at: aPPContext position
].
(aPPContext position == 0) ifTrue: [
(aPPContext peek isAlphaNumeric) ifTrue: [
^ #startOfWord
] ifFalse: [
^ PPFailure message: 'Start of word expected' context: aPPContext at: aPPContext position
]
].
aPPContext back.
aPPContext peek isAlphaNumeric ifTrue: [
^ PPFailure message: 'Start of word expected' context: aPPContext at: aPPContext position
].
aPPContext next.
^ aPPContext peek isAlphaNumeric ifTrue: [ #startOfWord ] ifFalse: [
PPFailure message: 'Start of word expected' context: aPPContext at: aPPContext position
]
! !