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require 'spec_helper'
RSpec.describe('Expression::Base#parts') do
include_examples 'parse', //, [] => [:root, parts: []]
include_examples 'parse', /a/, [0] => [:literal, parts: ['a']]
include_examples 'parse', /\K/, [0] => [:mark, parts: ['\K']]
include_examples 'parse', /\p{any}/, [0] => [:any, parts: ['\p{any}']]
include_examples 'parse', /[a]/, [0] => [:character, parts: ['[', s(Literal, 'a'), ']']]
include_examples 'parse', /[^a]/, [0] => [:character, parts: ['[^', s(Literal, 'a'), ']']]
include_examples 'parse', /(a)/, [0] => [:capture, parts: ['(', s(Literal, 'a'), ')']]
include_examples 'parse', /(?>a)/, [0] => [:atomic, parts: ['(?>', s(Literal, 'a'), ')']]
include_examples 'parse', /(?=a)/, [0] => [:lookahead, parts: ['(?=', s(Literal, 'a'), ')']]
include_examples 'parse', /(?#a)/, [0] => [:comment, parts: ['(?#a)']]
include_examples 'parse', /(a(b(c)))/,
[0] => [:capture, parts: [
'(',
s(Literal, 'a'),
s(Group::Capture, '(',
s(Literal, 'b'),
s(Group::Capture, '(',
s(Literal, 'c'),
)
),
')'
]]
include_examples 'parse', /a|b|c/,
[] => [:root, parts: [
s(Alternation, '|',
s(Alternative, nil, s(Literal, 'a')),
s(Alternative, nil, s(Literal, 'b')),
s(Alternative, nil, s(Literal, 'c'))
)
]],
[0] => [:alternation, parts: [
s(Alternative, nil, s(Literal, 'a')),
'|',
s(Alternative, nil, s(Literal, 'b')),
'|',
s(Alternative, nil, s(Literal, 'c'))
]]
include_examples 'parse', /[a-z]/,
[] => [:root, parts: [
s(CharacterSet, '[',
s(CharacterSet::Range, '-', s(Literal, 'a'), s(Literal, 'z')),
)
]],
[0] => [:character, parts: [
'[',
s(CharacterSet::Range, '-', s(Literal, 'a'), s(Literal, 'z')),
']'
]],
[0, 0] => [:range, parts: [
s(Literal, 'a'),
'-',
s(Literal, 'z')
]]
include_examples 'parse', /[a&&b&&c]/,
[] => [:root, parts: [
s(CharacterSet, '[',
s(CharacterSet::Intersection, '&&', s(Literal, 'a'), s(Literal, 'b'), s(Literal, 'c')),
)
]],
[0, 0] => [:intersection, parts: [
s(CharacterSet::IntersectedSequence, nil, s(Literal, 'a')),
'&&',
s(CharacterSet::IntersectedSequence, nil, s(Literal, 'b')),
'&&',
s(CharacterSet::IntersectedSequence, nil, s(Literal, 'c'))
]]
include_examples 'parse', /(a)(?(1)T|F)/,
[1] => [Conditional::Expression, parts: [
'(?',
s(Conditional::Condition, '(1)'),
s(Conditional::Branch, nil, s(Literal, 'T')),
'|',
s(Conditional::Branch, nil, s(Literal, 'F')),
')'
]]
end
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