36 lines
679 B
Smalltalk
36 lines
679 B
Smalltalk
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Class {
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#name : #PPPreceedsParser,
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#superclass : #PPDelegateParser,
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#instVars : [
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'length'
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],
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#category : #'PetitMarkdown-Parser'
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}
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{ #category : #accessing }
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PPPreceedsParser >> length [
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^ length
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]
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{ #category : #accessing }
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PPPreceedsParser >> length: anObject [
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length := anObject
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]
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{ #category : #'as yet unclassified' }
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PPPreceedsParser >> parseOn: aPPContext [
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| memento result |
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(aPPContext position < length) ifTrue: [
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^ PPFailure message: 'not enough space to preceed' context: aPPContext
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].
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memento := aPPContext position.
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aPPContext skip: length negated.
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result := parser parseOn: aPPContext.
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aPPContext position: memento.
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^ result
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]
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