diff options
Diffstat (limited to 'actionpack/lib/action_view/helpers/text_helper.rb')
| -rw-r--r-- | actionpack/lib/action_view/helpers/text_helper.rb | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/actionpack/lib/action_view/helpers/text_helper.rb b/actionpack/lib/action_view/helpers/text_helper.rb index 1698598edb..d986233796 100644 --- a/actionpack/lib/action_view/helpers/text_helper.rb +++ b/actionpack/lib/action_view/helpers/text_helper.rb @@ -38,15 +38,22 @@ module ActionView (text.chars.length > length ? text.chars[0...l] + truncate_string : text).to_s end - # Highlights +phrase+ everywhere it is found in +text+ by inserting it into + # Highlights one or more +phrases+ everywhere in +text+ by inserting it into # a +highlighter+ string. The highlighter can be specialized by passing +highlighter+ # as a single-quoted string with \1 where the phrase is to be inserted. # # highlight('You searched for: rails', 'rails') - # => You searched for: <strong class="highlight">rails</strong> - def highlight(text, phrase, highlighter = '<strong class="highlight">\1</strong>') - if phrase.blank? then return text end - text.gsub(/(#{Regexp.escape(phrase)})/i, highlighter) unless text.nil? + # # => You searched for: <strong class="highlight">rails</strong> + # + # highlight('You searched for: rails', ['for', 'rails'], '<em>\1</em>') + # # => You searched <em>for</em>: <em>rails</em> + def highlight(text, phrases, highlighter = '<strong class="highlight">\1</strong>') + if text.blank? || phrases.blank? + text + else + match = Array(phrases).map { |p| Regexp.escape(p) }.join('|') + text.gsub(/(#{match})/i, highlighter) + end end # Extracts an excerpt from +text+ that matches the first instance of +phrase+. |