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