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- # frozen_string_literal: true
-
- # Redmine - project management software
- # Copyright (C) 2006-2017 Jean-Philippe Lang
- #
- # This program is free software; you can redistribute it and/or
- # modify it under the terms of the GNU General Public License
- # as published by the Free Software Foundation; either version 2
- # of the License, or (at your option) any later version.
- #
- # This program is distributed in the hope that it will be useful,
- # but WITHOUT ANY WARRANTY; without even the implied warranty of
- # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- # GNU General Public License for more details.
- #
- # You should have received a copy of the GNU General Public License
- # along with this program; if not, write to the Free Software
- # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
-
- require 'loofah/helpers'
-
- module Redmine
- module WikiFormatting
- class HtmlParser
-
- class_attribute :tags
- self.tags = {
- 'br' => {:post => "\n"},
- 'style' => ''
- }
-
- def self.to_text(html)
- html = html.gsub(/[\n\r]/, '').squeeze(' ')
-
- doc = Loofah.document(html)
- doc.scrub!(WikiTags.new(tags))
- doc.scrub!(:newline_block_elements)
-
- Loofah.remove_extraneous_whitespace(doc.text).strip
- end
-
- class WikiTags < ::Loofah::Scrubber
- def initialize(tags_to_text)
- @direction = :bottom_up
- @tags_to_text = tags_to_text || {}
- end
-
- def scrub(node)
- formatting = @tags_to_text[node.name]
- case formatting
- when Hash
- node.add_next_sibling Nokogiri::XML::Text.new("#{formatting[:pre]}#{node.content}#{formatting[:post]}", node.document)
- node.remove
- when String
- node.add_next_sibling Nokogiri::XML::Text.new(formatting, node.document)
- node.remove
- else
- CONTINUE
- end
- end
- end
- end
- end
- end
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