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require 'spec_helper'
# edge cases with `...-&&...` and `...&&-...` are checked in ./ranges_spec.rb
RSpec.describe('CharacterSet::Intersection parsing') do
include_examples 'parse', /[a&&z]/,
[0] => [CharacterSet, count: 1],
[0, 0] => [CharacterSet::Intersection, count: 2],
[0, 0, 0] => [CharacterSet::IntersectedSequence, count: 1],
[0, 0, 0, 0] => [:literal, text: 'a'],
[0, 0, 1] => [CharacterSet::IntersectedSequence, count: 1],
[0, 0, 1, 0] => [:literal, text: 'z']
include_examples 'parse', /[a-z&&[^a]]/,
[0] => [CharacterSet, count: 1],
[0, 0] => [CharacterSet::Intersection, count: 2],
[0, 0, 0] => [CharacterSet::IntersectedSequence, count: 1],
[0, 0, 0, 0] => [CharacterSet::Range, count: 2],
[0, 0, 1] => [CharacterSet::IntersectedSequence, count: 1],
[0, 0, 1, 0] => [CharacterSet, count: 1, negative?: true]
include_examples 'parse', /[a&&a-z]/,
[0] => [CharacterSet, count: 1],
[0, 0] => [CharacterSet::Intersection, count: 2],
[0, 0, 0] => [CharacterSet::IntersectedSequence, count: 1],
[0, 0, 0, 0] => [:literal, text: 'a'],
[0, 0, 1] => [CharacterSet::IntersectedSequence, count: 1],
[0, 0, 1, 0] => [CharacterSet::Range, count: 2]
include_examples 'parse', /[a&&\w]/,
[0] => [CharacterSet, count: 1],
[0, 0] => [CharacterSet::Intersection, count: 2],
[0, 0, 1] => [CharacterSet::IntersectedSequence, count: 1],
[0, 0, 1, 0] => [:word, text: '\w']
include_examples 'parse', /[\h&&\w&&efg]/,
[0] => [CharacterSet, count: 1],
[0, 0] => [CharacterSet::Intersection, count: 3],
[0, 0, 0] => [CharacterSet::IntersectedSequence, count: 1],
[0, 0, 0, 0] => [:hex, text: '\h'],
[0, 0, 1] => [CharacterSet::IntersectedSequence, count: 1],
[0, 0, 1, 0] => [:word, text: '\w'],
[0, 0, 2] => [CharacterSet::IntersectedSequence, count: 3],
[0, 0, 2, 0] => [:literal, text: 'e'],
[0, 0, 2, 1] => [:literal, text: 'f'],
[0, 0, 2, 2] => [:literal, text: 'g']
# Some edge-case patterns are evaluated with #match to make sure that
# their matching behavior still reflects the way they are parsed.
# #capturing_stderr is used to skip any warnings generated by this.
specify('intersections behavior remains unchanged') do
capturing_stderr do
expect(/[a&&z]/).not_to match 'a'
expect(/[a&&z]/).not_to match '&'
expect(/[a&&z]/).not_to match 'z'
expect(/[a-z&&[^a]]/).not_to match 'a'
expect(/[a-z&&[^a]]/).not_to match '&'
expect(/[a-z&&[^a]]/).to match 'b'
expect(/[a&&a-z]/).to match 'a'
expect(/[a&&a-z]/).not_to match '&'
expect(/[a&&a-z]/).not_to match 'b'
expect(/[a&&\w]/).to match 'a'
expect(/[a&&\w]/).not_to match '&'
expect(/[a&&\w]/).not_to match 'b'
expect(/[\h&&\w&&efg]/).to match 'e'
expect(/[\h&&\w&&efg]/).to match 'f'
expect(/[\h&&\w&&efg]/).not_to match 'a'
expect(/[\h&&\w&&efg]/).not_to match 'g'
end
end
end
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