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4
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"{ Package: 'stx:goodies/petitparser' }"
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0
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Object subclass:#PPToken
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instanceVariableNames:'collection start stop'
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classVariableNames:''
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poolDictionaries:''
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category:'PetitParser-Core'
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!
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!PPToken class methodsFor:'instance creation'!
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new
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self error: 'Token can only be created using a dedicated constructor.'
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!
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on: aSequenceableCollection
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^ self on: aSequenceableCollection start: 1 stop: aSequenceableCollection size
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!
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on: aSequenceableCollection start: aStartInteger stop: aStopInteger
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30
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^ self basicNew
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0
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initializeOn: aSequenceableCollection
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start: aStartInteger stop: aStopInteger
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! !
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!PPToken methodsFor:'accessing'!
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collection
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"Answer the underlying collection of this token."
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^ collection
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!
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size
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"Answer the size of this token."
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^ stop - start + 1
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start
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"Answer the start position of this token in the underlying collection."
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^ start
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stop
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"Answer the stop position of this token in the underlying collection."
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30
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49 |
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0
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^ stop
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!
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value
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"Answer the contents of this token."
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^ collection copyFrom: start to: stop
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! !
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!PPToken methodsFor:'comparing'!
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= anObject
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^ self class = anObject class and: [ self value = anObject value ]
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!
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hash
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^ self value hash
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! !
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!PPToken methodsFor:'copying'!
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copyFrom: aStartInteger to: aStopInteger
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^ self class on: collection start: start + aStartInteger - 1 stop: stop + aStopInteger - 3
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! !
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!PPToken methodsFor:'initialization'!
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initializeOn: aSequenceableCollection start: aStartInteger stop: aStopInteger
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collection := aSequenceableCollection.
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start := aStartInteger.
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stop := aStopInteger
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! !
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!PPToken methodsFor:'printing'!
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printOn: aStream
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super printOn: aStream.
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aStream nextPut: $(; nextPutAll: self value; nextPut: $)
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! !
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89 |
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!PPToken methodsFor:'private'!
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91 |
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newline
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"Parser a platform independent newline sequence. LF: Unix, CR+LF: Windows, and CR: Apple."
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^ (Character lf asParser)
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/ (Character cr asParser , Character lf asParser optional)
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! !
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!PPToken methodsFor:'querying'!
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column
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"Answer the column number of this token in the underlying collection."
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30
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103 |
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0
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| position |
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position := 0.
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(self newline , [ :stream |
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start <= stream position
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ifTrue: [ ^ start - position ].
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position := stream position ] asParser
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/ #any asParser) star
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parse: collection.
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^ start - position
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!
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114 |
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line
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"Answer the line number of this token in the underlying collection."
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30
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117 |
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0
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| line |
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line := 1.
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(self newline , [ :stream |
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start <= stream position
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ifTrue: [ ^ line ].
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line := line + 1 ] asParser
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/ #any asParser) star
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parse: collection.
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^ line
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! !
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128 |
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!PPToken class methodsFor:'documentation'!
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130 |
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30
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version
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132 |
^ '$Header: /cvs/stx/stx/goodies/petitparser/PPToken.st,v 1.3 2012-05-04 22:03:13 vrany Exp $'
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!
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134 |
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version_CVS
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^ '$Header: /cvs/stx/stx/goodies/petitparser/PPToken.st,v 1.3 2012-05-04 22:03:13 vrany Exp $'
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!
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138 |
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0
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139 |
version_SVN
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30
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^ '§Id: PPToken.st 2 2010-12-17 18:44:23Z vranyj1 §'
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0
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141 |
! !
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