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Make truncate() Unicode-aware

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This commit is contained in:
Jacques Distler 2009-12-14 17:41:28 -06:00
parent 2c5e5a0015
commit d3e79ea84a
4 changed files with 41 additions and 9 deletions
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13
app/helpers/application_helper.rb
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@ -1,5 +1,6 @@
# The methods added to this helper will be available to all templates in the application.
module ApplicationHelper
require 'stringsupport'
# Accepts a container (hash, array, enumerable, your type) and returns a string of option tags. Given a container
# where the elements respond to first and last (such as a two-element array), the "lasts" serve as option values and
@ -111,15 +112,17 @@ module ApplicationHelper
PageRenderer.new(page.revisions.last).display_content
end
def truncate(text, length = 30, truncate_string = '...')
return text if text.length <= length
len = length - truncate_string.length
def truncate(text, *args)
options = args.extract_options!
options.reverse_merge!(:length => 30, :omission => "...")
return text if text.num_chars <= options[:length]
len = options[:length] - options[:omission].as_utf8.num_chars
t = ''
text.split.collect do |word|
if t.length + word.length <= len
if t.num_chars + word.num_chars <= len
t << word + ' '
else
return t.chop + truncate_string
return t.chop + options[:omission]
end
end
end