PetitCommonMark/software/petitislands/FirstFollowNextTests.class.st

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Class {
#name : 'FirstFollowNextTests',
#superclass : 'TestCase',
#category : 'PetitIslands-Tests'
}
{ #category : 'support' }
FirstFollowNextTests >> assert: set allMatches: string [
self assert: (set allSatisfy: [:e | e end matches: string])
]
{ #category : 'support' }
FirstFollowNextTests >> assert: set allSatisfy: aBlock [
self assert: (set allSatisfy: aBlock)
]
{ #category : 'support' }
FirstFollowNextTests >> assert: set anyMatches: string [
self assert: (set anySatisfy: [:e | e end matches: string])
]
{ #category : 'support' }
FirstFollowNextTests >> assert: set anySatisfy: aBlock [
self assert: (set anySatisfy: aBlock)
]
{ #category : 'support' }
FirstFollowNextTests >> assert: set noneMatches: string [
self assert: (set noneSatisfy: [:e | e end matches: string])
]
{ #category : 'support' }
FirstFollowNextTests >> assert: set noneSatisfy: aBlock [
self assert: (set noneSatisfy: aBlock)
]
{ #category : 'support' }
FirstFollowNextTests >> assert: set size: anInteger [
self assert: (set size = anInteger )
]
{ #category : 'support' }
FirstFollowNextTests >> first: aParser [
^ aParser firstSet
]
{ #category : 'support' }
FirstFollowNextTests >> first: aParser terminalPredicate: predicate [
^ aParser firstSetPredicate: predicate
]
{ #category : 'support' }
FirstFollowNextTests >> follow: aParser in: rootParser [
^ rootParser followSets at: aParser
]
{ #category : 'support' }
FirstFollowNextTests >> identifier [
^ ((#letter asParser / $# asParser), (#letter asParser / #digit asParser) star) flatten
]
{ #category : 'support' }
FirstFollowNextTests >> next: aParser in: rootParser [
^ rootParser nextSets at: aParser
]
{ #category : 'test first' }
FirstFollowNextTests >> testFirst1 [
| p first |
p := nil asParser / 'a' asParser.
self assert: (self first: p) anyMatches: ''.
self assert: (self first: p) anyMatches: 'a'.
]
{ #category : 'test first' }
FirstFollowNextTests >> testFirst2 [
| p first |
p := 'a' asParser optional, 'b' asParser.
self assert: (self first: p) anyMatches: 'a'.
self assert: (self first: p) anyMatches: 'b'.
]
{ #category : 'test first' }
FirstFollowNextTests >> testFirst3 [
| p first |
p := ('a' asParser optional, 'b' asParser asParser optional), 'c' asParser.
self assert: (self first: p) anyMatches: 'a'.
self assert: (self first: p) anyMatches: 'b'.
]
{ #category : 'test first' }
FirstFollowNextTests >> testFirst4 [
| p first |
p := ('a' asParser plus) optional, 'b' asParser.
self assert: (self first: p) anyMatches: 'a'.
self assert: (self first: p) anyMatches: 'b'.
]
{ #category : 'test first' }
FirstFollowNextTests >> testFirstChoice1 [
| p first |
p := nil asParser / '' asParser.
self assert: (self first: p) anySatisfy: [:e | e matches: ''].
]
{ #category : 'test first' }
FirstFollowNextTests >> testFirstChoice2 [
| p first |
p := 'a' asParser / nil asParser.
first := (self first: p).
self assert: first anySatisfy: [:e | e matches: 'a'].
self assert: first anySatisfy: [:e | e matches: ''].
]
{ #category : 'test first' }
FirstFollowNextTests >> testFirstChoice3 [
| p first |
p := 'a' asParser / nil asParser / 'b' asParser.
first := (self first: p).
self assert: first anySatisfy: [:e | e matches: 'a'].
self assert: first anySatisfy: [:e | e matches: 'b'].
self assert: first anySatisfy: [:e | e matches: ''].
]
{ #category : 'test first' }
FirstFollowNextTests >> testFirstComplex1 [
| p first root |
p := 'a' asParser / nil asParser.
root := p, 'c' asParser.
first := (self first: root).
self assert: first size: 2.
self assert: first anySatisfy: [:e | e matches: 'a'].
self assert: first anySatisfy: [:e | e matches: 'c'].
self assert: first noneSatisfy: [:e | e matches: ''].
]
{ #category : 'test first' }
FirstFollowNextTests >> testFirstComplex2 [
| p first root |
p := 'a' asParser / nil asParser / 'b' asParser.
root := p, 'c' asParser.
first := (self first: root).
self assert: first size: 3.
self assert: first anySatisfy: [:e | e matches: 'a'].
self assert: first anySatisfy: [:e | e matches: 'b'].
self assert: first anySatisfy: [:e | e matches: 'c'].
]
{ #category : 'test first' }
FirstFollowNextTests >> testFirstComplex3 [
| p first root |
p := 'a' asParser / nil asParser / 'b' asParser.
root := p, 'c' asParser not.
first := (self first: root).
self assert: first anySatisfy: [:e | e matches: 'a'].
self assert: first anySatisfy: [:e | e matches: 'b'].
self assert: first anySatisfy: [:e | e matches: ''].
self assert: first noneSatisfy: [:e | e end matches: 'c'].
]
{ #category : 'test first' }
FirstFollowNextTests >> testFirstComplex4 [
| p first root |
p := 'a' asParser / nil asParser / 'b' asParser.
root := (p, 'c' asParser not) wrapped.
first := (self first: root).
self assert: first anySatisfy: [:e | e matches: 'a'].
self assert: first anySatisfy: [:e | e matches: 'b'].
self assert: first anySatisfy: [:e | e matches: ''].
self assert: first noneSatisfy: [:e | e end matches: 'c'].
]
{ #category : 'test first' }
FirstFollowNextTests >> testFirstNegate1 [
| p first |
p := 'a' asParser negate, 'b' asParser.
self assert: (p parse: 'bb') isPetitFailure not.
self assert: (p parse: 'cb') isPetitFailure not.
self assert: (self first: p) noneSatisfy: [:each | each matches: 'a' ].
self assert: (self first: p) anySatisfy: [:each | each matches: 'b' ].
self assert: (self first: p) anySatisfy: [:each | each matches: 'c' ].
]
{ #category : 'test first' }
FirstFollowNextTests >> testFirstNot [
| p |
p := 'a' asParser not, 'b' asParser.
self assert: (p parse: 'b') isPetitFailure not.
self assert: (self first: p) size: 1.
self assert: (self first: p) noneSatisfy: [:each | each matches: 'a' ].
self assert: (self first: p) anySatisfy: [:each | each matches: 'b' ].
self assert: (self first: p) anySatisfy: [:each | each matches: 'c' ].
]
{ #category : 'test first' }
FirstFollowNextTests >> testFirstOptional [
| p first result |
p := 'a' asParser optional.
result := (self first: p).
self assert: result anySatisfy: [:e | e matches: '' ].
self assert: result anySatisfy: [:e | e matches: 'a'].
]
{ #category : 'test first' }
FirstFollowNextTests >> testFirstRepeat1 [
| p first |
p := ('a' asParser / nil asParser) plus.
first := self first: p.
self assert: first anyMatches: 'a'.
self assert: first anyMatches: ''.
]
{ #category : 'test first' }
FirstFollowNextTests >> testFirstRepeat2 [
| p first |
p := 'a' asParser star, 'b' asParser.
first := self first: p.
self assert: first anyMatches: 'a'.
self assert: first anyMatches: 'b'.
self assert: first noneMatches: ''
]
{ #category : 'test first' }
FirstFollowNextTests >> testFirstRepeat3 [
| p first |
p := 'a' asParser negate, 'a' asParser.
first := self first: p.
self assert: first noneMatches: 'a'.
]
{ #category : 'test first' }
FirstFollowNextTests >> testFirstRepeat4 [
| p first |
p := 'a' asParser negate star, 'b' asParser.
first := self first: p.
self assert: first size: 2.
self assert: first noneMatches: 'a'.
]
{ #category : 'test first' }
FirstFollowNextTests >> testFirstSequence1 [
| p first |
p := 'a' asParser, 'b' asParser .
first := self first: p.
self assert: first size: 1.
self assert: first allMatches: 'a'.
self assert: first noneMatches: 'b'.
]
{ #category : 'test first' }
FirstFollowNextTests >> testFirstSequence2 [
| p first |
p := nil asParser, 'a' asParser, 'b' asParser .
first := self first: p.
self assert: first size: 1.
self assert: first allMatches: 'a'.
self assert: first noneMatches: 'b'.
self assert: first noneMatches: ''.
]
{ #category : 'test first' }
FirstFollowNextTests >> testFirstSequence3 [
| p first |
p := nil asParser, nil asParser.
self assert: (self first: p) anySatisfy: [:e | e end matches: ''].
]
{ #category : 'test first' }
FirstFollowNextTests >> testFirstSequence4 [
| p first |
p := ((nil asParser / 'a' asParser) plus), 'b' asParser.
first := self first: p.
self assert: first anyMatches: 'b'.
self assert: first anyMatches: 'a'.
self assert: first noneMatches: ''.
]
{ #category : 'test first' }
FirstFollowNextTests >> testFirstSequence5 [
| p first |
p := ((nil asParser / 'a' asParser) star), 'b' asParser.
first := self first: p.
self assert: first anyMatches: 'b'.
self assert: first anyMatches: 'a'.
self assert: first noneMatches: ''.
]
{ #category : 'test first' }
FirstFollowNextTests >> testFirstTerminal2 [
| p |
p := 'a' asParser not.
self assert: (self first: p) noneMatches: 'a'.
]
{ #category : 'test first' }
FirstFollowNextTests >> testFirstTerminal3 [
| p |
p := 'a' asParser and.
self assert: (self first: p) anyMatches: 'a'
]
{ #category : 'test first' }
FirstFollowNextTests >> testFirstTerminal4 [
| p |
p := nil asParser.
self assert: (self first: p) anySatisfy: [:e | e end matches: ''].
]
{ #category : 'test follow' }
FirstFollowNextTests >> testFollowNot1 [
| p followSet terminal |
terminal := 'a' asParser.
p := terminal, 'b' asParser not.
followSet := self follow: terminal in: p.
self assert: followSet anySatisfy: [:e | e matches: 'c' ].
self assert: followSet anySatisfy: [:e | (e matches: 'b') not ].
]
{ #category : 'test follow' }
FirstFollowNextTests >> testFollowSet1 [
| result p root followSet |
p := 'a' asParser.
root := (p star, 'b' asParser).
followSet := self follow: p in: root.
self assert: followSet anySatisfy: [:e | e literal = 'a'].
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' ].
]