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require 'spec_helper'
describe 'Result of a Parslet#parse' do
include Parslet; extend Parslet
describe "regression" do
[
# Behaviour with maybe-nil
[str('foo').maybe >> str('bar'), "bar", "bar"],
[str('bar') >> str('foo').maybe, "bar", 'bar'],
# These might be hard to understand; look at the result of
# str.maybe >> str
# and
# str.maybe >> str first.
[(str('f').maybe >> str('b')).repeat, "bb", "bb"],
[(str('b') >> str('f').maybe).repeat, "bb", 'bb'],
[str('a').as(:a) >> (str('b') >> str('c').as(:a)).repeat, 'abc',
[{:a=>'a'}, {:a=>'c'}]],
[str('a').as(:a).repeat >> str('b').as(:b).repeat, 'ab', [{:a=>'a'}, {:b=>'b'}]],
# Repetition behaviour / named vs. unnamed
[str('f').repeat, '', ''],
[str('f').repeat.as(:f), '', {:f => []}],
# Maybe behaviour / named vs. unnamed
[str('f').maybe, '', ''],
[str('f').maybe.as(:f), '', {:f => nil}],
].each do |parslet, input, result|
context "#{parslet.inspect}" do
it "should parse \"#{input}\" into \"#{result}\"" do
parslet.parse(input).should == result
end
end
end
end
end
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