1 # redMine - project management software
2 # Copyright (C) 2006-2007 Jean-Philippe Lang
4 # This program is free software; you can redistribute it and/or
5 # modify it under the terms of the GNU General Public License
6 # as published by the Free Software Foundation; either version 2
7 # of the License, or (at your option) any later version.
9 # This program is distributed in the hope that it will be useful,
10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 # GNU General Public License for more details.
14 # You should have received a copy of the GNU General Public License
15 # along with this program; if not, write to the Free Software
16 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
19 def highlight_tokens(text, tokens)
20 return text unless text && tokens && !tokens.empty?
21 regexp = Regexp.new "(#{tokens.join('|')})", Regexp::IGNORECASE
23 text.split(regexp).each_with_index do |words, i|
24 if result.length > 1200
25 # maximum length of the preview reached
29 result << (i.even? ? h(words.length > 100 ? "#{words[0..44]} ... #{words[-45..-1]}" : words) : content_tag('span', h(words), :class => 'highlight'))