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30990006a9
This reduces chances of errors where consumers of strings mutate inputs and reduces memory usage of the app. Test suite passes now, but there may be some stuff left, so we will run a few sites on a branch prior to merging
27 lines
738 B
Ruby
27 lines
738 B
Ruby
# frozen_string_literal: true
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class QuoteComparer
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def self.whitespace
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" \t\r\n".freeze
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end
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def initialize(topic_id, post_number, text)
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@topic_id = topic_id
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@post_number = post_number
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@text = text
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@parent_post = Post.where(topic_id: @topic_id, post_number: @post_number).first
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end
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# This algorithm is far from perfect, but it follows the Discourse
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# philosophy of "catch the obvious cases, leave moderation for the
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# complicated ones"
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def modified?
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return true if @text.blank? || @parent_post.blank?
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parent_text = Nokogiri::HTML::fragment(@parent_post.cooked).text.delete(QuoteComparer.whitespace)
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text = @text.delete(QuoteComparer.whitespace)
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!parent_text.include?(text)
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end
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end
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