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# Redmine - project management software
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# Copyright (C) 2006-2015 Jean-Philippe Lang
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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require 'loofah/helpers'
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module Redmine
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module WikiFormatting
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class HtmlParser
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class_attribute :tags
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self.tags = {
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'br' => {:post => "\n"},
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'style' => ''
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}
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def self.to_text(html)
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html = html.gsub(/[\n\r]/, '').squeeze(' ')
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doc = Loofah.document(html)
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doc.scrub!(WikiTags.new(tags))
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doc.scrub!(:newline_block_elements)
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Loofah::Helpers.remove_extraneous_whitespace(doc.text).strip
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end
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class WikiTags < ::Loofah::Scrubber
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def initialize(tags_to_text)
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@direction = :bottom_up
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@tags_to_text = tags_to_text || {}
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end
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def scrub(node)
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formatting = @tags_to_text[node.name]
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case formatting
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when Hash
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node.add_next_sibling Nokogiri::XML::Text.new("#{formatting[:pre]}#{node.content}#{formatting[:post]}", node.document)
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node.remove
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when String
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node.add_next_sibling Nokogiri::XML::Text.new(formatting, node.document)
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node.remove
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else
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CONTINUE
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end
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end
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end
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end
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end
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end
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