compiler/PEGFsaPredicateTransition.st
author Jan Vrany <jan.vrany@fit.cvut.cz>
Mon, 23 Nov 2015 11:14:30 +0100
changeset 551 00ebb1b85f53
parent 524 f6f68d32de73
permissions -rw-r--r--
Fixed CI scripts on Windows For an unknown reason, unzip on Windows reports status code 50 (presumably "the disk is (or was) full during extraction.") even if there's plenty of space. To workaround this, simply ignore status code 50 on Windows. Sigh.

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

"{ NameSpace: Smalltalk }"

PEGFsaTransition subclass:#PEGFsaPredicateTransition
	instanceVariableNames:'predicate'
	classVariableNames:''
	poolDictionaries:''
	category:'PetitCompiler-FSA'
!

!PEGFsaPredicateTransition methodsFor:'accessing'!

predicate
    ^ predicate
!

predicate: anObject
    predicate := anObject
! !

!PEGFsaPredicateTransition methodsFor:'comparing'!

equals: anotherTransition
    (super equals: anotherTransition) ifFalse: [ ^ false ].
    (predicate asString = anotherTransition predicate asString) ifFalse: [ ^ false ].

    ^ true
! !

!PEGFsaPredicateTransition methodsFor:'gt'!

gtName
    | gtName |
    gtName := self predicate asString.
    priority < 0 ifTrue: [ gtName := gtName, ',', priority asString ].
    ^ gtName
! !

!PEGFsaPredicateTransition methodsFor:'set operations'!

intersection: transition
    | intersection |
    intersection := Array new: 255 withAll: false.
    ^ intersection
! !

!PEGFsaPredicateTransition methodsFor:'testing'!

accepts: character
    self assert: character isCharacter.
    ^ self acceptsCodePoint: character codePoint
!

acceptsCodePoint: codePoint
    self assert: codePoint isInteger.
    ^ predicate value: codePoint
!

isCharacterTransition
    ^ false
!

isEOF
    ^ false
!

isParser
    self halt: 'delete me!!'.
    ^ false
!

isPredicateTransition
    ^ true
!

overlapsWith: transition
    ^ false
! !