1290 lines
30 KiB
Smalltalk
1290 lines
30 KiB
Smalltalk
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Class {
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#name : 'FirstFollowNextTests',
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#superclass : 'TestCase',
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#category : 'PetitIslands-Tests'
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}
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{ #category : 'support' }
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FirstFollowNextTests >> assert: set allMatches: string [
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self assert: (set allSatisfy: [:e | e end matches: string])
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]
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{ #category : 'support' }
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FirstFollowNextTests >> assert: set allSatisfy: aBlock [
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self assert: (set allSatisfy: aBlock)
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]
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{ #category : 'support' }
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FirstFollowNextTests >> assert: set anyMatches: string [
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self assert: (set anySatisfy: [:e | e end matches: string])
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]
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{ #category : 'support' }
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FirstFollowNextTests >> assert: set anySatisfy: aBlock [
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self assert: (set anySatisfy: aBlock)
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]
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{ #category : 'support' }
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FirstFollowNextTests >> assert: set noneMatches: string [
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self assert: (set noneSatisfy: [:e | e end matches: string])
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]
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{ #category : 'support' }
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FirstFollowNextTests >> assert: set noneSatisfy: aBlock [
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self assert: (set noneSatisfy: aBlock)
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]
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{ #category : 'support' }
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FirstFollowNextTests >> assert: set size: anInteger [
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self assert: (set size = anInteger )
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]
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{ #category : 'support' }
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FirstFollowNextTests >> first: aParser [
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^ aParser firstSet
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]
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{ #category : 'support' }
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FirstFollowNextTests >> first: aParser terminalPredicate: predicate [
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^ aParser firstSetPredicate: predicate
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]
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{ #category : 'support' }
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FirstFollowNextTests >> follow: aParser in: rootParser [
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^ rootParser followSets at: aParser
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]
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{ #category : 'support' }
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FirstFollowNextTests >> identifier [
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^ ((#letter asParser / $# asParser), (#letter asParser / #digit asParser) star) flatten
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]
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{ #category : 'support' }
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FirstFollowNextTests >> next: aParser in: rootParser [
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^ rootParser nextSets at: aParser
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]
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{ #category : 'test first' }
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FirstFollowNextTests >> testFirst1 [
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| p first |
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p := nil asParser / 'a' asParser.
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self assert: (self first: p) anyMatches: ''.
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self assert: (self first: p) anyMatches: 'a'.
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]
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{ #category : 'test first' }
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FirstFollowNextTests >> testFirst2 [
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| p first |
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p := 'a' asParser optional, 'b' asParser.
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self assert: (self first: p) anyMatches: 'a'.
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self assert: (self first: p) anyMatches: 'b'.
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]
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{ #category : 'test first' }
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FirstFollowNextTests >> testFirst3 [
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| p first |
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p := ('a' asParser optional, 'b' asParser asParser optional), 'c' asParser.
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self assert: (self first: p) anyMatches: 'a'.
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self assert: (self first: p) anyMatches: 'b'.
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]
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{ #category : 'test first' }
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FirstFollowNextTests >> testFirst4 [
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| p first |
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p := ('a' asParser plus) optional, 'b' asParser.
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self assert: (self first: p) anyMatches: 'a'.
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self assert: (self first: p) anyMatches: 'b'.
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]
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{ #category : 'test first' }
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FirstFollowNextTests >> testFirstChoice1 [
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| p first |
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p := nil asParser / '' asParser.
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self assert: (self first: p) anySatisfy: [:e | e matches: ''].
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]
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{ #category : 'test first' }
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FirstFollowNextTests >> testFirstChoice2 [
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| p first |
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p := 'a' asParser / nil asParser.
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first := (self first: p).
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self assert: first anySatisfy: [:e | e matches: 'a'].
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self assert: first anySatisfy: [:e | e matches: ''].
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]
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{ #category : 'test first' }
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FirstFollowNextTests >> testFirstChoice3 [
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| p first |
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p := 'a' asParser / nil asParser / 'b' asParser.
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first := (self first: p).
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self assert: first anySatisfy: [:e | e matches: 'a'].
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self assert: first anySatisfy: [:e | e matches: 'b'].
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self assert: first anySatisfy: [:e | e matches: ''].
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]
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{ #category : 'test first' }
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FirstFollowNextTests >> testFirstComplex1 [
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| p first root |
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p := 'a' asParser / nil asParser.
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root := p, 'c' asParser.
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first := (self first: root).
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self assert: first size: 2.
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self assert: first anySatisfy: [:e | e matches: 'a'].
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self assert: first anySatisfy: [:e | e matches: 'c'].
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self assert: first noneSatisfy: [:e | e matches: ''].
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]
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{ #category : 'test first' }
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FirstFollowNextTests >> testFirstComplex2 [
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| p first root |
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p := 'a' asParser / nil asParser / 'b' asParser.
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root := p, 'c' asParser.
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first := (self first: root).
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self assert: first size: 3.
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self assert: first anySatisfy: [:e | e matches: 'a'].
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self assert: first anySatisfy: [:e | e matches: 'b'].
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self assert: first anySatisfy: [:e | e matches: 'c'].
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]
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{ #category : 'test first' }
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FirstFollowNextTests >> testFirstComplex3 [
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| p first root |
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p := 'a' asParser / nil asParser / 'b' asParser.
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root := p, 'c' asParser not.
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first := (self first: root).
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self assert: first anySatisfy: [:e | e matches: 'a'].
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self assert: first anySatisfy: [:e | e matches: 'b'].
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self assert: first anySatisfy: [:e | e matches: ''].
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self assert: first noneSatisfy: [:e | e end matches: 'c'].
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]
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{ #category : 'test first' }
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FirstFollowNextTests >> testFirstComplex4 [
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| p first root |
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p := 'a' asParser / nil asParser / 'b' asParser.
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root := (p, 'c' asParser not) wrapped.
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first := (self first: root).
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self assert: first anySatisfy: [:e | e matches: 'a'].
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self assert: first anySatisfy: [:e | e matches: 'b'].
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self assert: first anySatisfy: [:e | e matches: ''].
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self assert: first noneSatisfy: [:e | e end matches: 'c'].
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]
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{ #category : 'test first' }
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FirstFollowNextTests >> testFirstNegate1 [
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| p first |
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p := 'a' asParser negate, 'b' asParser.
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self assert: (p parse: 'bb') isPetitFailure not.
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self assert: (p parse: 'cb') isPetitFailure not.
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self assert: (self first: p) noneSatisfy: [:each | each matches: 'a' ].
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self assert: (self first: p) anySatisfy: [:each | each matches: 'b' ].
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self assert: (self first: p) anySatisfy: [:each | each matches: 'c' ].
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]
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{ #category : 'test first' }
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FirstFollowNextTests >> testFirstNot [
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| p |
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p := 'a' asParser not, 'b' asParser.
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self assert: (p parse: 'b') isPetitFailure not.
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self assert: (self first: p) size: 1.
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self assert: (self first: p) noneSatisfy: [:each | each matches: 'a' ].
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self assert: (self first: p) anySatisfy: [:each | each matches: 'b' ].
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self assert: (self first: p) anySatisfy: [:each | each matches: 'c' ].
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]
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{ #category : 'test first' }
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FirstFollowNextTests >> testFirstOptional [
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| p first result |
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p := 'a' asParser optional.
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result := (self first: p).
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self assert: result anySatisfy: [:e | e matches: '' ].
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self assert: result anySatisfy: [:e | e matches: 'a'].
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]
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{ #category : 'test first' }
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FirstFollowNextTests >> testFirstRepeat1 [
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| p first |
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p := ('a' asParser / nil asParser) plus.
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first := self first: p.
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self assert: first anyMatches: 'a'.
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self assert: first anyMatches: ''.
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]
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{ #category : 'test first' }
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FirstFollowNextTests >> testFirstRepeat2 [
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| p first |
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p := 'a' asParser star, 'b' asParser.
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first := self first: p.
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self assert: first anyMatches: 'a'.
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self assert: first anyMatches: 'b'.
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self assert: first noneMatches: ''
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]
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{ #category : 'test first' }
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FirstFollowNextTests >> testFirstRepeat3 [
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| p first |
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p := 'a' asParser negate, 'a' asParser.
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first := self first: p.
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self assert: first noneMatches: 'a'.
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]
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{ #category : 'test first' }
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FirstFollowNextTests >> testFirstRepeat4 [
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| p first |
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p := 'a' asParser negate star, 'b' asParser.
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first := self first: p.
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self assert: first size: 2.
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self assert: first noneMatches: 'a'.
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]
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{ #category : 'test first' }
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FirstFollowNextTests >> testFirstSequence1 [
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| p first |
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p := 'a' asParser, 'b' asParser .
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first := self first: p.
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self assert: first size: 1.
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self assert: first allMatches: 'a'.
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self assert: first noneMatches: 'b'.
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]
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{ #category : 'test first' }
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FirstFollowNextTests >> testFirstSequence2 [
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| p first |
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p := nil asParser, 'a' asParser, 'b' asParser .
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first := self first: p.
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self assert: first size: 1.
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self assert: first allMatches: 'a'.
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self assert: first noneMatches: 'b'.
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self assert: first noneMatches: ''.
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]
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{ #category : 'test first' }
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FirstFollowNextTests >> testFirstSequence3 [
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| p first |
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p := nil asParser, nil asParser.
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self assert: (self first: p) anySatisfy: [:e | e end matches: ''].
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]
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{ #category : 'test first' }
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FirstFollowNextTests >> testFirstSequence4 [
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| p first |
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p := ((nil asParser / 'a' asParser) plus), 'b' asParser.
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first := self first: p.
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self assert: first anyMatches: 'b'.
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self assert: first anyMatches: 'a'.
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self assert: first noneMatches: ''.
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]
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{ #category : 'test first' }
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FirstFollowNextTests >> testFirstSequence5 [
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| p first |
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p := ((nil asParser / 'a' asParser) star), 'b' asParser.
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first := self first: p.
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self assert: first anyMatches: 'b'.
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self assert: first anyMatches: 'a'.
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self assert: first noneMatches: ''.
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]
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{ #category : 'test first' }
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FirstFollowNextTests >> testFirstTerminal2 [
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| p |
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p := 'a' asParser not.
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self assert: (self first: p) noneMatches: 'a'.
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]
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{ #category : 'test first' }
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FirstFollowNextTests >> testFirstTerminal3 [
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| p |
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p := 'a' asParser and.
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self assert: (self first: p) anyMatches: 'a'
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]
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{ #category : 'test first' }
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FirstFollowNextTests >> testFirstTerminal4 [
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| p |
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p := nil asParser.
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self assert: (self first: p) anySatisfy: [:e | e end matches: ''].
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]
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{ #category : 'test follow' }
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FirstFollowNextTests >> testFollowNot1 [
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| p followSet terminal |
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|
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terminal := 'a' asParser.
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p := terminal, 'b' asParser not.
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followSet := self follow: terminal in: p.
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self assert: followSet anySatisfy: [:e | e matches: 'c' ].
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self assert: followSet anySatisfy: [:e | (e matches: 'b') not ].
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]
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{ #category : 'test follow' }
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||
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FirstFollowNextTests >> testFollowSet1 [
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||
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| result p root followSet |
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||
|
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p := 'a' asParser.
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||
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root := (p star, 'b' asParser).
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||
|
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followSet := self follow: p in: root.
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||
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self assert: followSet anySatisfy: [:e | e literal = 'a'].
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|
|
self assert: followSet anySatisfy: [:e | e literal = 'b'].
|
||
|
|
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test follow' }
|
||
|
|
FirstFollowNextTests >> testFollowSet10 [
|
||
|
|
| island1 followSet p root island2 block |
|
||
|
|
|
||
|
|
island1 := ('class' asParser, self identifier) sea.
|
||
|
|
island2 := ('extends' asParser, self identifier) sea.
|
||
|
|
block := '{}' asParser sea.
|
||
|
|
|
||
|
|
root := (island1, island2 optional, block) star.
|
||
|
|
|
||
|
|
followSet := self follow: block in: root.
|
||
|
|
|
||
|
|
self assert: followSet anySatisfy: [:e | e end matches: 'class'].
|
||
|
|
self assert: followSet anySatisfy: [:e | e end matches: ''].
|
||
|
|
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test follow' }
|
||
|
|
FirstFollowNextTests >> testFollowSet11 [
|
||
|
|
| island1 followSet p root island2 block |
|
||
|
|
|
||
|
|
island1 := ('class' asParser, self identifier) sea.
|
||
|
|
island2 := ('extends' asParser, self identifier) sea.
|
||
|
|
block := '{}' asParser sea.
|
||
|
|
|
||
|
|
root := (island1, island2 optional, block) plus.
|
||
|
|
|
||
|
|
followSet := self follow: block in: root.
|
||
|
|
|
||
|
|
self assert: followSet anySatisfy: [:e | e end matches: 'class'].
|
||
|
|
self assert: followSet anySatisfy: [:e | e end matches: ''].
|
||
|
|
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test follow' }
|
||
|
|
FirstFollowNextTests >> testFollowSet12 [
|
||
|
|
| parser followSet |
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
parser := 'a' asParser.
|
||
|
|
followSet := self follow: parser in: parser.
|
||
|
|
|
||
|
|
self assert: followSet anySatisfy: [:e | e end matches: '' ].
|
||
|
|
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test follow' }
|
||
|
|
FirstFollowNextTests >> testFollowSet13 [
|
||
|
|
| parser followSet a b c |
|
||
|
|
|
||
|
|
a := 'a' asParser.
|
||
|
|
b := 'b' asParser optional.
|
||
|
|
c := 'c' asParser.
|
||
|
|
|
||
|
|
|
||
|
|
parser := a, b, c.
|
||
|
|
followSet := self follow: c in: parser.
|
||
|
|
self assert: followSet anySatisfy: [:e | e end matches: '' ].
|
||
|
|
|
||
|
|
followSet := self follow: b in: parser.
|
||
|
|
self assert: followSet anySatisfy: [:e | e end matches: 'c' ].
|
||
|
|
|
||
|
|
followSet := self follow: a in: parser.
|
||
|
|
self assert: followSet anySatisfy: [:e | e end matches: 'b' ].
|
||
|
|
self assert: followSet anySatisfy: [:e | e end matches: 'c' ].
|
||
|
|
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test follow' }
|
||
|
|
FirstFollowNextTests >> testFollowSet14 [
|
||
|
|
| parser followSet a b c |
|
||
|
|
|
||
|
|
a := 'a' asParser.
|
||
|
|
b := 'b' asParser optional.
|
||
|
|
c := 'c' asParser.
|
||
|
|
|
||
|
|
|
||
|
|
parser := a plus, b, c.
|
||
|
|
|
||
|
|
followSet := self follow: a in: parser.
|
||
|
|
self assert: followSet anySatisfy: [:e | e end matches: 'a' ].
|
||
|
|
self assert: followSet anySatisfy: [:e | e end matches: 'b' ].
|
||
|
|
self assert: followSet anySatisfy: [:e | e end matches: 'c' ].
|
||
|
|
self assert: followSet noneSatisfy: [:e | e end matches: '' ].
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test follow' }
|
||
|
|
FirstFollowNextTests >> testFollowSet2 [
|
||
|
|
| result p follow root followSets followSet |
|
||
|
|
|
||
|
|
p := 'a' asParser.
|
||
|
|
follow := 'b' asParser, 'c' asParser.
|
||
|
|
|
||
|
|
root := (p, follow).
|
||
|
|
|
||
|
|
followSet := self follow: p in: root.
|
||
|
|
|
||
|
|
self assert: followSet size: 1.
|
||
|
|
self assert: followSet anySatisfy: [:e | e end matches: 'b'].
|
||
|
|
self assert: followSet noneSatisfy: [:e | e matches: 'c'].
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test follow' }
|
||
|
|
FirstFollowNextTests >> testFollowSet3 [
|
||
|
|
| result p follow root followSets followSet |
|
||
|
|
|
||
|
|
p := 'a' asParser.
|
||
|
|
follow := ('b' asParser, 'c' asParser) / ('d' asParser).
|
||
|
|
|
||
|
|
|
||
|
|
root := (p, follow).
|
||
|
|
|
||
|
|
followSet := self follow: p in: root.
|
||
|
|
|
||
|
|
self assert: followSet anySatisfy: [:e | e end matches: 'b' ].
|
||
|
|
self assert: followSet anySatisfy: [:e | e end matches: 'd' ].
|
||
|
|
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test follow' }
|
||
|
|
FirstFollowNextTests >> testFollowSet4 [
|
||
|
|
| result p follow root followSets followSet |
|
||
|
|
|
||
|
|
p := 'a' asParser.
|
||
|
|
follow := ('b' asParser, 'c' asParser).
|
||
|
|
|
||
|
|
|
||
|
|
root := (p star, follow).
|
||
|
|
|
||
|
|
followSet := self follow: p in: root.
|
||
|
|
|
||
|
|
self assert: followSet anySatisfy: [:e | e end matches: 'b' ].
|
||
|
|
self assert: followSet anySatisfy: [:e | e end matches: 'a' ].
|
||
|
|
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test follow' }
|
||
|
|
FirstFollowNextTests >> testFollowSet5 [
|
||
|
|
| result p root followSets followSet follow1 follow2 |
|
||
|
|
|
||
|
|
p := 'a' asParser.
|
||
|
|
follow1 := ('b' asParser, 'c' asParser) / nil asParser.
|
||
|
|
follow2 := 'd' asParser.
|
||
|
|
|
||
|
|
|
||
|
|
root := (p, follow1, follow2).
|
||
|
|
|
||
|
|
followSet := self follow: p in: root.
|
||
|
|
|
||
|
|
self assert: followSet anySatisfy: [:e | e end matches: 'b' ].
|
||
|
|
self assert: followSet anySatisfy: [:e | e end matches: 'd' ].
|
||
|
|
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test follow' }
|
||
|
|
FirstFollowNextTests >> testFollowSet6 [
|
||
|
|
| result p root followSets followSet follow follow1 follow2 |
|
||
|
|
|
||
|
|
p := 'a' asParser.
|
||
|
|
follow1 := ('b' asParser, 'c' asParser) / nil asParser.
|
||
|
|
follow2 := 'd' asParser.
|
||
|
|
|
||
|
|
follow := (follow1, follow2).
|
||
|
|
|
||
|
|
root := (p, follow).
|
||
|
|
|
||
|
|
followSet := self follow: p in: root.
|
||
|
|
|
||
|
|
self assert: followSet anySatisfy: [:e | e end matches: 'b' ].
|
||
|
|
self assert: followSet anySatisfy: [:e | e end matches: 'd' ].
|
||
|
|
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test follow' }
|
||
|
|
FirstFollowNextTests >> testFollowSet7 [
|
||
|
|
| result p root followSets followSet r1 r2 follow1 follow2 |
|
||
|
|
|
||
|
|
p := 'a' asParser.
|
||
|
|
follow1 := ('b' asParser, 'c' asParser) / nil asParser.
|
||
|
|
follow2 := 'd' asParser / nil asParser .
|
||
|
|
|
||
|
|
r1 := (p, follow1).
|
||
|
|
r2 := (r1, follow2).
|
||
|
|
|
||
|
|
root := r2.
|
||
|
|
|
||
|
|
followSet := self follow: p in: root.
|
||
|
|
|
||
|
|
self assert: followSet anySatisfy: [:e | e end matches: 'b' ].
|
||
|
|
self assert: followSet anySatisfy: [:e | e end matches: 'd' ].
|
||
|
|
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test follow' }
|
||
|
|
FirstFollowNextTests >> testFollowSet8 [
|
||
|
|
| result p root followSets followSet follow |
|
||
|
|
|
||
|
|
p := 'a' asParser.
|
||
|
|
follow := PPEndOfFileParser new.
|
||
|
|
|
||
|
|
root := p, follow.
|
||
|
|
|
||
|
|
followSet := self follow: p in: root.
|
||
|
|
|
||
|
|
self assert: followSet anySatisfy: [:e | e end matches: ''].
|
||
|
|
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test follow' }
|
||
|
|
FirstFollowNextTests >> testFollowSet9 [
|
||
|
|
| island1 followSet p root island2 block |
|
||
|
|
|
||
|
|
island1 := ('class' asParser, self identifier) sea.
|
||
|
|
island2 := (':' asParser, self identifier) sea.
|
||
|
|
block := '{' asParser, '}' asParser sea.
|
||
|
|
|
||
|
|
root := (island1, island2 optional, block) sea.
|
||
|
|
|
||
|
|
followSet := self follow: island1 in: root.
|
||
|
|
|
||
|
|
self assert: followSet anySatisfy: [:e | e end matches: '{'].
|
||
|
|
self assert: followSet anySatisfy: [:e | e end matches: ':'].
|
||
|
|
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test follow' }
|
||
|
|
FirstFollowNextTests >> testFollowSetChoice1 [
|
||
|
|
| result p root followSets followSet follow |
|
||
|
|
|
||
|
|
p := 'a' asParser.
|
||
|
|
follow := 'b' asParser / 'c' asParser .
|
||
|
|
|
||
|
|
root := p, follow.
|
||
|
|
|
||
|
|
followSet := self follow: p in: root.
|
||
|
|
|
||
|
|
self assert: followSet anySatisfy: [:e | (e parse: 'b') isPetitFailure not].
|
||
|
|
self assert: followSet anySatisfy: [:e | (e parse: 'c') isPetitFailure not].
|
||
|
|
self assert: followSet noneSatisfy: [:e | (e parse: 'a') isPetitFailure not].
|
||
|
|
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test follow' }
|
||
|
|
FirstFollowNextTests >> testFollowSetChoice2 [
|
||
|
|
| result p root followSet follow b c |
|
||
|
|
|
||
|
|
follow := 'a' asParser / 'd' asParser.
|
||
|
|
b := 'b' asParser.
|
||
|
|
c := 'c' asParser.
|
||
|
|
p := b / c.
|
||
|
|
|
||
|
|
root := p, follow.
|
||
|
|
|
||
|
|
followSet := self follow: p in: root.
|
||
|
|
|
||
|
|
self assert: followSet anySatisfy: [:e | (e parse: 'a') isPetitFailure not].
|
||
|
|
self assert: followSet anySatisfy: [:e | (e parse: 'd') isPetitFailure not].
|
||
|
|
|
||
|
|
followSet := self follow: p in: root.
|
||
|
|
|
||
|
|
self assert: followSet anySatisfy: [:e | (e parse: 'a') isPetitFailure not].
|
||
|
|
self assert: followSet noneSatisfy: [:e | (e parse: 'c') isPetitFailure not].
|
||
|
|
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test follow' }
|
||
|
|
FirstFollowNextTests >> testFollowSetOptional1 [
|
||
|
|
| result p root followSets followSet follow follow1 follow2 |
|
||
|
|
|
||
|
|
p := 'a' asParser.
|
||
|
|
follow1 := 'b' asParser optional.
|
||
|
|
follow2 := 'c' asParser.
|
||
|
|
|
||
|
|
root := p, follow1, follow2.
|
||
|
|
|
||
|
|
followSet := self follow: p in: root.
|
||
|
|
|
||
|
|
self assert: followSet anySatisfy: [:e | e end matches: 'b'].
|
||
|
|
self assert: followSet anySatisfy: [:e | e end matches: 'c'].
|
||
|
|
self assert: followSet noneSatisfy: [:e | e end matches: ''].
|
||
|
|
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test follow' }
|
||
|
|
FirstFollowNextTests >> testFollowSetRepeat1 [
|
||
|
|
| p followSet terminal |
|
||
|
|
|
||
|
|
terminal := 'a' asParser.
|
||
|
|
p := terminal plus.
|
||
|
|
|
||
|
|
followSet := self follow: terminal in: p.
|
||
|
|
self assert: followSet anySatisfy: [:e | e end matches: 'a' ].
|
||
|
|
self assert: followSet anySatisfy: [:e | e end matches: '' ].
|
||
|
|
|
||
|
|
followSet := self follow: p in: p.
|
||
|
|
self assert: followSet anySatisfy: [:e | e end matches: '' ].
|
||
|
|
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test follow' }
|
||
|
|
FirstFollowNextTests >> testFollowSetStar1 [
|
||
|
|
| a b p followSet |
|
||
|
|
|
||
|
|
a := 'a' asParser star.
|
||
|
|
b := 'b' asParser.
|
||
|
|
p := a, b.
|
||
|
|
followSet := self follow: a in: p.
|
||
|
|
|
||
|
|
self assert: followSet size: 1.
|
||
|
|
self assert: followSet anySatisfy: [:e | e end matches: 'b'].
|
||
|
|
self assert: followSet noneSatisfy: [:e | e end matches: ''].
|
||
|
|
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test follow' }
|
||
|
|
FirstFollowNextTests >> testFollowSetStar3 [
|
||
|
|
| a b p followSet n |
|
||
|
|
|
||
|
|
a := 'a' asParser star.
|
||
|
|
p := a.
|
||
|
|
followSet := self follow: a in: p.
|
||
|
|
|
||
|
|
self assert: followSet noneSatisfy: [:e | e end matches: 'a'].
|
||
|
|
self assert: followSet anySatisfy: [:e | e end matches: ''].
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test follow' }
|
||
|
|
FirstFollowNextTests >> testFollowSetStar4 [
|
||
|
|
| a b p followSet |
|
||
|
|
|
||
|
|
a := 'a' asParser.
|
||
|
|
b := 'b' asParser.
|
||
|
|
p := a star, b.
|
||
|
|
followSet := self follow: a in: p.
|
||
|
|
|
||
|
|
self assert: followSet size: 2.
|
||
|
|
self assert: followSet anySatisfy: [:e | e end matches: 'a'].
|
||
|
|
self assert: followSet anySatisfy: [:e | e end matches: 'b'].
|
||
|
|
self assert: followSet noneSatisfy: [:e | e end matches: ''].
|
||
|
|
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test follow' }
|
||
|
|
FirstFollowNextTests >> testFollowSetStar5 [
|
||
|
|
| a b p followSet n |
|
||
|
|
|
||
|
|
a := 'a' asParser.
|
||
|
|
b := 'b' asParser.
|
||
|
|
n := nil asParser.
|
||
|
|
p := a star, (b / n).
|
||
|
|
followSet := self follow: a in: p.
|
||
|
|
|
||
|
|
|
||
|
|
self assert: followSet anySatisfy: [:e | e end matches: 'a'].
|
||
|
|
self assert: followSet anySatisfy: [:e | e end matches: 'b'].
|
||
|
|
self assert: followSet anySatisfy: [:e | e end matches: ''].
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test follow' }
|
||
|
|
FirstFollowNextTests >> testFollowSetStar6 [
|
||
|
|
| a b p followSet n |
|
||
|
|
|
||
|
|
a := 'a' asParser.
|
||
|
|
p := a star.
|
||
|
|
followSet := self follow: a in: p.
|
||
|
|
|
||
|
|
|
||
|
|
self assert: followSet anySatisfy: [:e | e end matches: 'a'].
|
||
|
|
self assert: followSet anySatisfy: [:e | e end matches: ''].
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test isNullable' }
|
||
|
|
FirstFollowNextTests >> testIsNullable01 [
|
||
|
|
self assert: 'a' asParser acceptsEpsilon not.
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test isNullable' }
|
||
|
|
FirstFollowNextTests >> testIsNullable02 [
|
||
|
|
self assert: 'a' asParser wrapped acceptsEpsilon not.
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test isNullable' }
|
||
|
|
FirstFollowNextTests >> testIsNullable03 [
|
||
|
|
self assert: nil asParser acceptsEpsilon.
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test isNullable' }
|
||
|
|
FirstFollowNextTests >> testIsNullable04 [
|
||
|
|
self assert: nil asParser wrapped acceptsEpsilon.
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test isNullable' }
|
||
|
|
FirstFollowNextTests >> testIsNullable05 [
|
||
|
|
self assert: 'a' asParser not acceptsEpsilon not.
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test isNullable' }
|
||
|
|
FirstFollowNextTests >> testIsNullable06 [
|
||
|
|
self assert: 'a' asParser and acceptsEpsilon not.
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test isNullable' }
|
||
|
|
FirstFollowNextTests >> testIsNullable07 [
|
||
|
|
self assert: 'a' asParser wrapped not acceptsEpsilon not.
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test isNullable' }
|
||
|
|
FirstFollowNextTests >> testIsNullable08 [
|
||
|
|
self assert: 'a' asParser wrapped and acceptsEpsilon not.
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test isNullable' }
|
||
|
|
FirstFollowNextTests >> testIsNullable09 [
|
||
|
|
self assert: 'a' asParser optional acceptsEpsilon.
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test isNullable' }
|
||
|
|
FirstFollowNextTests >> testIsNullable10 [
|
||
|
|
self assert: 'a' asParser wrapped optional acceptsEpsilon.
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test isNullable' }
|
||
|
|
FirstFollowNextTests >> testIsNullable11 [
|
||
|
|
self assert: 'a' asParser wrapped not optional acceptsEpsilon.
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test isNullable' }
|
||
|
|
FirstFollowNextTests >> testIsNullable12 [
|
||
|
|
self assert: 'a' asParser optional wrapped acceptsEpsilon.
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test isNullable' }
|
||
|
|
FirstFollowNextTests >> testIsNullableChoice1 [
|
||
|
|
| a b c p |
|
||
|
|
a := 'a' asParser.
|
||
|
|
b := 'b' asParser.
|
||
|
|
c := 'c' asParser.
|
||
|
|
|
||
|
|
p := a / b / c.
|
||
|
|
|
||
|
|
self assert: p acceptsEpsilon not.
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test isNullable' }
|
||
|
|
FirstFollowNextTests >> testIsNullableChoice2 [
|
||
|
|
| a b c p |
|
||
|
|
a := 'a' asParser.
|
||
|
|
b := 'b' asParser optional.
|
||
|
|
c := 'c' asParser.
|
||
|
|
|
||
|
|
p := a / b / c.
|
||
|
|
|
||
|
|
self assert: p acceptsEpsilon.
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test isNullable' }
|
||
|
|
FirstFollowNextTests >> testIsNullableChoice3 [
|
||
|
|
| a b c p |
|
||
|
|
a := 'a' asParser optional.
|
||
|
|
b := 'b' asParser optional.
|
||
|
|
c := 'c' asParser optional.
|
||
|
|
|
||
|
|
p := a / b / c.
|
||
|
|
|
||
|
|
self assert: p acceptsEpsilon.
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test isNullable' }
|
||
|
|
FirstFollowNextTests >> testIsNullableChoice4 [
|
||
|
|
| a b c p |
|
||
|
|
a := 'a' asParser optional wrapped.
|
||
|
|
b := 'b' asParser optional wrapped.
|
||
|
|
c := 'c' asParser optional wrapped.
|
||
|
|
|
||
|
|
p := a / b / c.
|
||
|
|
|
||
|
|
self assert: p acceptsEpsilon.
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test isNullable' }
|
||
|
|
FirstFollowNextTests >> testIsNullableCycle1 [
|
||
|
|
| a p |
|
||
|
|
a := 'a' asParser.
|
||
|
|
p := PPDelegateParser new.
|
||
|
|
|
||
|
|
p setParser: a / p.
|
||
|
|
self assert: p acceptsEpsilon not.
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test isNullable' }
|
||
|
|
FirstFollowNextTests >> testIsNullableCycle2 [
|
||
|
|
| a p e |
|
||
|
|
a := 'a' asParser.
|
||
|
|
e := nil asParser.
|
||
|
|
p := PPDelegateParser new.
|
||
|
|
|
||
|
|
p setParser: (a, p) / e.
|
||
|
|
|
||
|
|
self assert: p acceptsEpsilon.
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test isNullable' }
|
||
|
|
FirstFollowNextTests >> testIsNullableCycle3 [
|
||
|
|
| a p e |
|
||
|
|
a := 'a' asParser.
|
||
|
|
e := nil asParser.
|
||
|
|
p := PPDelegateParser new.
|
||
|
|
|
||
|
|
p setParser: (a, p), e.
|
||
|
|
|
||
|
|
self assert: p acceptsEpsilon not.
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test isNullable' }
|
||
|
|
FirstFollowNextTests >> testIsNullableEOF [
|
||
|
|
| a |
|
||
|
|
a := #eof asParser.
|
||
|
|
self assert: a acceptsEpsilon not.
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test isNullable' }
|
||
|
|
FirstFollowNextTests >> testIsNullableSeq1 [
|
||
|
|
| a b c p |
|
||
|
|
a := 'a' asParser.
|
||
|
|
b := 'b' asParser.
|
||
|
|
c := 'c' asParser.
|
||
|
|
|
||
|
|
p := a, b, c.
|
||
|
|
|
||
|
|
self assert: p acceptsEpsilon not.
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test isNullable' }
|
||
|
|
FirstFollowNextTests >> testIsNullableSeq2 [
|
||
|
|
| a b c p |
|
||
|
|
a := 'a' asParser.
|
||
|
|
b := 'b' asParser optional.
|
||
|
|
c := 'c' asParser.
|
||
|
|
|
||
|
|
p := a, b, c.
|
||
|
|
|
||
|
|
self assert: p acceptsEpsilon not.
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test isNullable' }
|
||
|
|
FirstFollowNextTests >> testIsNullableSeq3 [
|
||
|
|
| a b c p |
|
||
|
|
a := 'a' asParser optional.
|
||
|
|
b := 'b' asParser optional.
|
||
|
|
c := 'c' asParser optional.
|
||
|
|
|
||
|
|
p := a, b, c.
|
||
|
|
|
||
|
|
self assert: p acceptsEpsilon.
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test isNullable' }
|
||
|
|
FirstFollowNextTests >> testIsNullableSeq4 [
|
||
|
|
| a b c p |
|
||
|
|
a := 'a' asParser optional wrapped.
|
||
|
|
b := 'b' asParser optional wrapped.
|
||
|
|
c := 'c' asParser wrapped optional.
|
||
|
|
|
||
|
|
p := a, b, c.
|
||
|
|
|
||
|
|
self assert: p acceptsEpsilon.
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test isNullable' }
|
||
|
|
FirstFollowNextTests >> testIsNullableStartOfLine [
|
||
|
|
| a |
|
||
|
|
a := #startOfLine asParser.
|
||
|
|
self assert: a acceptsEpsilon not.
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test next' }
|
||
|
|
FirstFollowNextTests >> testNext1 [
|
||
|
|
| p nextSet |
|
||
|
|
p := 'a' asParser.
|
||
|
|
|
||
|
|
nextSet := (self next: p in: p).
|
||
|
|
self assert: nextSet anySatisfy: [:e | e end matches: ''].
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test next' }
|
||
|
|
FirstFollowNextTests >> testNext2 [
|
||
|
|
| p nextSet a b |
|
||
|
|
a := 'a' asParser.
|
||
|
|
b := 'b' asParser.
|
||
|
|
|
||
|
|
p := a, b.
|
||
|
|
|
||
|
|
nextSet := (self next: a in: p).
|
||
|
|
self assert: nextSet size: 1.
|
||
|
|
self assert: nextSet anySatisfy: [:e | e end matches: 'b'].
|
||
|
|
|
||
|
|
nextSet := (self next: b in: p).
|
||
|
|
self assert: nextSet anySatisfy: [:e | e end matches: ''].
|
||
|
|
|
||
|
|
nextSet := (self next: p in: p).
|
||
|
|
self assert: nextSet anySatisfy: [:e | e end matches: ''].
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test next' }
|
||
|
|
FirstFollowNextTests >> testNext3 [
|
||
|
|
| p nextSet a b |
|
||
|
|
a := 'a' asParser.
|
||
|
|
b := 'b' asParser.
|
||
|
|
|
||
|
|
p := a / b.
|
||
|
|
|
||
|
|
nextSet := (self next: a in: p).
|
||
|
|
self assert: nextSet anySatisfy: [:e | e end matches: ''].
|
||
|
|
|
||
|
|
nextSet := (self next: b in: p).
|
||
|
|
self assert: nextSet anySatisfy: [:e | e end matches: ''].
|
||
|
|
|
||
|
|
nextSet := (self next: p in: p).
|
||
|
|
self assert: nextSet anySatisfy: [:e | e end matches: ''].
|
||
|
|
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test next' }
|
||
|
|
FirstFollowNextTests >> testNext4 [
|
||
|
|
| p nextSet a b n |
|
||
|
|
a := 'a' asParser.
|
||
|
|
b := 'b' asParser.
|
||
|
|
n := nil asParser.
|
||
|
|
|
||
|
|
p := a, n, b.
|
||
|
|
|
||
|
|
nextSet := (self next: a in: p).
|
||
|
|
self assert: nextSet anySatisfy: [:e | e end matches: 'b'].
|
||
|
|
|
||
|
|
nextSet := (self next: n in: p).
|
||
|
|
self assert: nextSet anySatisfy: [:e | e end matches: 'b'].
|
||
|
|
|
||
|
|
nextSet := (self next: b in: p).
|
||
|
|
self assert: nextSet anySatisfy: [:e | e end matches: ''].
|
||
|
|
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test next' }
|
||
|
|
FirstFollowNextTests >> testNext5 [
|
||
|
|
| p nextSet a b n a1 a2 |
|
||
|
|
a1 := 'a1' asParser wrapped.
|
||
|
|
a2 := 'a2' asParser wrapped.
|
||
|
|
a := (a1 asParser, a2 asParser) wrapped.
|
||
|
|
b := 'b' asParser.
|
||
|
|
n := 'n' asParser optional.
|
||
|
|
|
||
|
|
p := a, n, b.
|
||
|
|
|
||
|
|
nextSet := (self next: a1 in: p).
|
||
|
|
self assert: nextSet anySatisfy: [:e | e end matches: 'a2'].
|
||
|
|
|
||
|
|
nextSet := (self next: a2 in: p).
|
||
|
|
self assert: nextSet anySatisfy: [:e | e end matches: 'b'].
|
||
|
|
self assert: nextSet anySatisfy: [:e | e end matches: 'nb'].
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
nextSet := (self next: a in: p).
|
||
|
|
self assert: nextSet anySatisfy: [:e | e end matches: 'b'].
|
||
|
|
self assert: nextSet anySatisfy: [:e | e end matches: 'nb'].
|
||
|
|
|
||
|
|
nextSet := (self next: n in: p).
|
||
|
|
self assert: nextSet anySatisfy: [:e | e end matches: 'b'].
|
||
|
|
|
||
|
|
nextSet := (self next: b in: p).
|
||
|
|
self assert: nextSet anySatisfy: [:e | e end matches: ''].
|
||
|
|
self assert: nextSet noneSatisfy: [:e | e end matches: 'b'].
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test next' }
|
||
|
|
FirstFollowNextTests >> testNext6 [
|
||
|
|
| p nextSet a b n a1 a2 |
|
||
|
|
a1 := 'a1' asParser wrapped.
|
||
|
|
a2 := 'a2' asParser wrapped / nil asParser.
|
||
|
|
a := (a1 asParser, a2 asParser) wrapped.
|
||
|
|
b := 'b' asParser.
|
||
|
|
n := 'nil' asParser optional.
|
||
|
|
|
||
|
|
p := a, n, b.
|
||
|
|
|
||
|
|
nextSet := (self next: a1 in: p).
|
||
|
|
self assert: nextSet anySatisfy: [:e | e matches: 'a2'].
|
||
|
|
self assert: nextSet anySatisfy: [:e | e matches: 'nilb'].
|
||
|
|
self assert: nextSet anySatisfy: [:e | e matches: 'b'].
|
||
|
|
|
||
|
|
nextSet := (self next: a2 in: p).
|
||
|
|
self assert: nextSet anySatisfy: [:e | e matches: 'nilb'].
|
||
|
|
self assert: nextSet anySatisfy: [:e | e matches: 'b'].
|
||
|
|
|
||
|
|
|
||
|
|
nextSet := (self next: a in: p).
|
||
|
|
self assert: nextSet anySatisfy: [:e | e matches: 'nilb'].
|
||
|
|
self assert: nextSet anySatisfy: [:e | e matches: 'b'].
|
||
|
|
|
||
|
|
nextSet := (self next: n in: p).
|
||
|
|
self assert: nextSet anySatisfy: [:e | e matches: 'b'].
|
||
|
|
|
||
|
|
nextSet := (self next: b in: p).
|
||
|
|
self assert: nextSet anySatisfy: [:e | e end matches: ''].
|
||
|
|
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test next' }
|
||
|
|
FirstFollowNextTests >> testNext7 [
|
||
|
|
| p nextSet a b n c |
|
||
|
|
a := 'a' asParser.
|
||
|
|
b := 'b' asParser.
|
||
|
|
c := 'c' asParser.
|
||
|
|
n := nil asParser.
|
||
|
|
|
||
|
|
p := a, b, a, n, c.
|
||
|
|
|
||
|
|
nextSet := (self next: a in: p).
|
||
|
|
|
||
|
|
self assert: nextSet anySatisfy: [:e | e matches: 'bac'].
|
||
|
|
self assert: nextSet anySatisfy: [:e | e matches: 'c'].
|
||
|
|
|
||
|
|
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test next' }
|
||
|
|
FirstFollowNextTests >> testNext8 [
|
||
|
|
| p nextSet a b n c |
|
||
|
|
a := 'a' asParser.
|
||
|
|
b := 'b' asParser.
|
||
|
|
c := 'c' asParser.
|
||
|
|
n := nil asParser.
|
||
|
|
|
||
|
|
p := a, n, a, b, c.
|
||
|
|
|
||
|
|
nextSet := (self next: a in: p).
|
||
|
|
self assert: nextSet anySatisfy: [:e | e matches: 'abc'].
|
||
|
|
self assert: nextSet anySatisfy: [:e | e matches: 'bc'].
|
||
|
|
|
||
|
|
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test next' }
|
||
|
|
FirstFollowNextTests >> testNextDelegate1 [
|
||
|
|
|
||
|
|
| a nextSet b c p |
|
||
|
|
a := 'a' asParser optional wrapped.
|
||
|
|
b := 'b' asParser optional wrapped.
|
||
|
|
c := 'c' asParser optional wrapped.
|
||
|
|
p := a, b, c.
|
||
|
|
|
||
|
|
nextSet := (self next: a in: p).
|
||
|
|
self assert: nextSet anySatisfy: [:e | e end matches: 'b'].
|
||
|
|
self assert: nextSet anySatisfy: [:e | e end matches: 'c'].
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test next' }
|
||
|
|
FirstFollowNextTests >> testNextRepeat1 [
|
||
|
|
| p nextSet a b n c |
|
||
|
|
a := 'a' asParser star.
|
||
|
|
|
||
|
|
nextSet := (self next: a in: a).
|
||
|
|
self assert: nextSet size: 1.
|
||
|
|
self assert: nextSet anySatisfy: [:e | e end matches: '']
|
||
|
|
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test next' }
|
||
|
|
FirstFollowNextTests >> testNextRepeat2 [
|
||
|
|
| p nextSet a b astar |
|
||
|
|
a := 'a' asParser.
|
||
|
|
b := 'b' asParser.
|
||
|
|
astar := a star.
|
||
|
|
|
||
|
|
p := astar, b.
|
||
|
|
|
||
|
|
nextSet := (self next: astar in: p).
|
||
|
|
|
||
|
|
self assert: nextSet size: 1.
|
||
|
|
self assert: nextSet anySatisfy: [:e | e end matches: 'b'].
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test next' }
|
||
|
|
FirstFollowNextTests >> testNextRepeat3 [
|
||
|
|
| p nextSet a b astar |
|
||
|
|
a := 'a' asParser.
|
||
|
|
b := 'b' asParser.
|
||
|
|
|
||
|
|
p := a star, b.
|
||
|
|
|
||
|
|
nextSet := (self next: a in: p).
|
||
|
|
|
||
|
|
self assert: nextSet size: 2.
|
||
|
|
self assert: nextSet anySatisfy: [:e | e end matches: 'b'].
|
||
|
|
self assert: nextSet anySatisfy: [:e | e end matches: 'a'].
|
||
|
|
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test next' }
|
||
|
|
FirstFollowNextTests >> testNextRepeat4 [
|
||
|
|
| a nextSet b p root |
|
||
|
|
a := 'a' asParser.
|
||
|
|
b := 'b' asParser optional.
|
||
|
|
|
||
|
|
p := a, b.
|
||
|
|
root := p plus.
|
||
|
|
|
||
|
|
nextSet := (self next: a in: root).
|
||
|
|
self assert: nextSet size = 3.
|
||
|
|
self assert: nextSet anySatisfy: [ :e | e matches: 'a'].
|
||
|
|
self assert: nextSet anySatisfy: [ :e | e matches: 'ab'].
|
||
|
|
self assert: nextSet anySatisfy: [ :e | e acceptsEpsilon ].
|
||
|
|
|
||
|
|
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test next' }
|
||
|
|
FirstFollowNextTests >> testNextSequence [
|
||
|
|
| a p nextSet b c |
|
||
|
|
a := 'a' asParser.
|
||
|
|
b := 'b' asParser.
|
||
|
|
c := 'c' asParser.
|
||
|
|
|
||
|
|
p := a, b, c.
|
||
|
|
|
||
|
|
nextSet := (self next: a in: p).
|
||
|
|
self assert: nextSet noneSatisfy: [:e | e matches: 'b' ].
|
||
|
|
self assert: nextSet noneSatisfy: [:e | e matches: 'c' ].
|
||
|
|
self assert: nextSet anySatisfy: [:e | e matches: 'bc' ].
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test next' }
|
||
|
|
FirstFollowNextTests >> testNextSequence2 [
|
||
|
|
| a p nextSet b c |
|
||
|
|
a := 'a' asParser.
|
||
|
|
b := 'b' asParser.
|
||
|
|
c := 'c' asParser.
|
||
|
|
|
||
|
|
p := (a, b) wrapped, c.
|
||
|
|
|
||
|
|
nextSet := (self next: a in: p).
|
||
|
|
self assert: nextSet anySatisfy: [:e | e matches: 'b' ].
|
||
|
|
self assert: nextSet noneSatisfy: [:e | e matches: 'c' ].
|
||
|
|
self assert: nextSet anySatisfy: [:e | e matches: 'bc' ].
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test next' }
|
||
|
|
FirstFollowNextTests >> testNextSequence3 [
|
||
|
|
| a p nextSet b c |
|
||
|
|
a := 'a' asParser.
|
||
|
|
b := 'b' asParser.
|
||
|
|
c := 'c' asParser.
|
||
|
|
|
||
|
|
p := (a, b sea) wrapped, c.
|
||
|
|
|
||
|
|
nextSet := (self next: a in: p).
|
||
|
|
self assert: nextSet size = 2.
|
||
|
|
|
||
|
|
self assert: nextSet anySatisfy: [:e | e matches: 'b' ].
|
||
|
|
self assert: nextSet anySatisfy: [:e | e matches: 'c' ].
|
||
|
|
|
||
|
|
|
||
|
|
]
|
||
|
|
|
||
|
|
{ #category : 'test next' }
|
||
|
|
FirstFollowNextTests >> testNextSequence4 [
|
||
|
|
| a p nextSet b c d |
|
||
|
|
a := 'a' asParser.
|
||
|
|
b := 'b' asParser.
|
||
|
|
c := 'c' asParser.
|
||
|
|
d := 'd' asParser.
|
||
|
|
|
||
|
|
p := (a, b sea, c sea) wrapped, d.
|
||
|
|
|
||
|
|
nextSet := (self next: a in: p).
|
||
|
|
self assert: nextSet size = 2.
|
||
|
|
|
||
|
|
self assert: nextSet anySatisfy: [:e | e matches: 'bc' ].
|
||
|
|
self assert: nextSet anySatisfy: [:e | e matches: 'd' ].
|
||
|
|
|
||
|
|
|
||
|
|
]
|