diff options
Diffstat (limited to 'actionview/lib/action_view/helpers/text_helper.rb')
| -rw-r--r-- | actionview/lib/action_view/helpers/text_helper.rb | 31 |
1 files changed, 24 insertions, 7 deletions
diff --git a/actionview/lib/action_view/helpers/text_helper.rb b/actionview/lib/action_view/helpers/text_helper.rb index 7cfbca5b6f..cf5c1b0e81 100644 --- a/actionview/lib/action_view/helpers/text_helper.rb +++ b/actionview/lib/action_view/helpers/text_helper.rb @@ -103,11 +103,14 @@ module ActionView # Highlights one or more +phrases+ everywhere in +text+ by inserting it into # a <tt>:highlighter</tt> string. The highlighter can be specialized by passing <tt>:highlighter</tt> # as a single-quoted string with <tt>\1</tt> where the phrase is to be inserted (defaults to - # '<mark>\1</mark>') + # '<mark>\1</mark>') or passing a block that receives each matched term. # # highlight('You searched for: rails', 'rails') # # => You searched for: <mark>rails</mark> # + # highlight('You searched for: rails', /for|rails/) + # # => You searched <mark>for</mark>: <mark>rails</mark> + # # highlight('You searched for: ruby, rails, dhh', 'actionpack') # # => You searched for: ruby, rails, dhh # @@ -116,15 +119,25 @@ module ActionView # # highlight('You searched for: rails', 'rails', highlighter: '<a href="search?q=\1">\1</a>') # # => You searched for: <a href="search?q=rails">rails</a> + # + # highlight('You searched for: rails', 'rails') { |match| link_to(search_path(q: match, match)) } + # # => You searched for: <a href="search?q=rails">rails</a> def highlight(text, phrases, options = {}) text = sanitize(text) if options.fetch(:sanitize, true) if text.blank? || phrases.blank? text else - highlighter = options.fetch(:highlighter, '<mark>\1</mark>') - match = Array(phrases).map { |p| Regexp.escape(p) }.join('|') - text.gsub(/(#{match})(?![^<]*?>)/i, highlighter) + match = Array(phrases).map do |p| + Regexp === p ? p.to_s : Regexp.escape(p) + end.join('|') + + if block_given? + text.gsub(/(#{match})(?![^<]*?>)/i) { |found| yield found } + else + highlighter = options.fetch(:highlighter, '<mark>\1</mark>') + text.gsub(/(#{match})(?![^<]*?>)/i, highlighter) + end end.html_safe end @@ -155,9 +168,13 @@ module ActionView def excerpt(text, phrase, options = {}) return unless text && phrase - separator = options[:separator] || '' - phrase = Regexp.escape(phrase) - regex = /#{phrase}/i + separator = options.fetch(:separator, nil) || "" + case phrase + when Regexp + regex = phrase + else + regex = /#{Regexp.escape(phrase)}/i + end return unless matches = text.match(regex) phrase = matches[0] |