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Fix some link anchors being recognized as hashtags (#27271)
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@ -35,7 +35,7 @@ class Tag < ApplicationRecord
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HASHTAG_LAST_SEQUENCE = '([[:word:]_]*[[:alpha:]][[:word:]_]*)'
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HASHTAG_NAME_PAT = "#{HASHTAG_FIRST_SEQUENCE}|#{HASHTAG_LAST_SEQUENCE}"
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HASHTAG_RE = %r{(?:^|[^/)\w])#(#{HASHTAG_NAME_PAT})}i
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HASHTAG_RE = %r{(?<![=/)[:word]])#(#{HASHTAG_NAME_PAT})}i
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HASHTAG_NAME_RE = /\A(#{HASHTAG_NAME_PAT})\z/i
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HASHTAG_INVALID_CHARS_RE = /[^[:alnum:]#{HASHTAG_SEPARATORS}]/
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@ -32,44 +32,48 @@ RSpec.describe Tag do
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expect(subject.match('https://en.wikipedia.org/wiki/Ghostbusters_(song)#Lawsuit')).to be_nil
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end
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it 'does not match URLs with hashtag-like anchors after an empty query parameter' do
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expect(subject.match('https://en.wikipedia.org/wiki/Ghostbusters_(song)?foo=#Lawsuit')).to be_nil
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end
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it 'matches #aesthetic' do
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expect(subject.match('this is #aesthetic').to_s).to eq ' #aesthetic'
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expect(subject.match('this is #aesthetic').to_s).to eq '#aesthetic'
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end
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it 'matches digits at the start' do
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expect(subject.match('hello #3d').to_s).to eq ' #3d'
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expect(subject.match('hello #3d').to_s).to eq '#3d'
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end
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it 'matches digits in the middle' do
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expect(subject.match('hello #l33ts35k').to_s).to eq ' #l33ts35k'
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expect(subject.match('hello #l33ts35k').to_s).to eq '#l33ts35k'
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end
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it 'matches digits at the end' do
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expect(subject.match('hello #world2016').to_s).to eq ' #world2016'
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expect(subject.match('hello #world2016').to_s).to eq '#world2016'
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end
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it 'matches underscores at the beginning' do
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expect(subject.match('hello #_test').to_s).to eq ' #_test'
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expect(subject.match('hello #_test').to_s).to eq '#_test'
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end
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it 'matches underscores at the end' do
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expect(subject.match('hello #test_').to_s).to eq ' #test_'
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expect(subject.match('hello #test_').to_s).to eq '#test_'
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end
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it 'matches underscores in the middle' do
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expect(subject.match('hello #one_two_three').to_s).to eq ' #one_two_three'
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expect(subject.match('hello #one_two_three').to_s).to eq '#one_two_three'
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end
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it 'matches middle dots' do
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expect(subject.match('hello #one·two·three').to_s).to eq ' #one·two·three'
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expect(subject.match('hello #one·two·three').to_s).to eq '#one·two·three'
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end
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it 'matches ・unicode in ぼっち・ざ・ろっく correctly' do
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expect(subject.match('testing #ぼっち・ざ・ろっく').to_s).to eq ' #ぼっち・ざ・ろっく'
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expect(subject.match('testing #ぼっち・ざ・ろっく').to_s).to eq '#ぼっち・ざ・ろっく'
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end
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it 'matches ZWNJ' do
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expect(subject.match('just add #نرمافزار and').to_s).to eq ' #نرمافزار'
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expect(subject.match('just add #نرمافزار and').to_s).to eq '#نرمافزار'
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end
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it 'does not match middle dots at the start' do
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@ -77,7 +81,7 @@ RSpec.describe Tag do
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end
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it 'does not match middle dots at the end' do
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expect(subject.match('hello #one·two·three·').to_s).to eq ' #one·two·three'
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expect(subject.match('hello #one·two·three·').to_s).to eq '#one·two·three'
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end
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it 'does not match purely-numeric hashtags' do
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