diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/rbot/core/utils/extends.rb | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/lib/rbot/core/utils/extends.rb b/lib/rbot/core/utils/extends.rb new file mode 100644 index 00000000..b1da19c5 --- /dev/null +++ b/lib/rbot/core/utils/extends.rb @@ -0,0 +1,69 @@ +#-- vim:sw=2:et +#++ +# +# Extensions to standard classes, to be used by the various plugins +# Please note that global symbols have to be prefixed by :: because this plugin +# will be read into an anonymous module + +# Extensions to the Array class +# +class ::Array + + # This method returns a random element from the array, or nil if the array is + # empty + # + def pick_one + return nil if self.empty? + self[rand(self.length)] + end +end + +# Extensions to the String class +# +# TODO make ircify_html() accept an Hash of options, and make riphtml() just +# call ircify_html() with stronger purify options. +# +class ::String + + # This method will return a purified version of the receiver, with all HTML + # stripped off and some of it converted to IRC formatting + # + def ircify_html + txt = self + + # bold and strong -> bold + txt.gsub!(/<\/?(?:b|strong)\s*>/, "#{Bold}") + + # italic, emphasis and underline -> underline + txt.gsub!(/<\/?(?:i|em|u)\s*>/, "#{Underline}") + + ## This would be a nice addition, but the results are horrible + ## Maybe make it configurable? + # txt.gsub!(/<\/?a( [^>]*)?>/, "#{Reverse}") + + # Paragraph and br tags are converted to whitespace. + txt.gsub!(/<\/?(p|br)\s*\/?\s*>/, ' ') + txt.gsub!("\n", ' ') + + # All other tags are just removed + txt.gsub!(/<[^>]+>/, '') + + # Remove double formatting options, since they only waste bytes + txt.gsub!(/#{Bold}\s*#{Bold}/,"") + txt.gsub!(/#{Underline}\s*#{Underline}/,"") + + # And finally whitespace is squeezed + txt.gsub!(/\s+/, ' ') + + # Decode entities and strip whitespace + return Utils.decode_html_entities(txt).strip! + end + + # This method will strip all HTML crud from the receiver + # + def riphtml + self.gsub(/<[^>]+>/, '').gsub(/&/,'&').gsub(/"/,'"').gsub(/</,'<').gsub(/>/,'>').gsub(/&ellip;/,'...').gsub(/'/, "'").gsub("\n",'') + end +end + + |