util.rb in jeffrafter-marvin-0.1.20081120

- old
+ new
@@ -1,29 +1,46 @@
 module Marvin
   module Util
       
+      GLOB_PATTERN_MAP = {
+        '*' => '.*',
+        '?' => '.',
+        '[' => '[',
+        ']' => ']'
+      }
+      
       # Return the channel-name version of a string by
       # appending "#" to the front if it doesn't already
       # start with it.
       def channel_name(name)
         return name.to_s[0..0] == "#" ? name.to_s : "##{name}"
       end
       alias chan channel_name
       
       def arguments(input)
-        prefix, *ending = input.split(":")
+        prefix, ending = input.split(":", 2)
         prefix = prefix.split(" ")
-        prefix << ending.join(":").strip
+        prefix << ending unless ending.blank?
         return prefix
       end
 
       # Specifies the last parameter of a response, used to
       # specify parameters which have spaces etc (for example,
       # the actual message part of a response).
       def last_param(section)
-        section && ":#{section.to_s.strip} "
+        section && ":#{section.to_s.strip}"
       end
       alias lp last_param
+      
+      # Converts a glob-like pattern into a regular
+      # expression for easy / fast matching. Code is
+      # from PLEAC at http://pleac.sourceforge.net/pleac_ruby/patternmatching.html
+      def glob2pattern(glob_string)
+          inner_pattern = glob_string.gsub(/(.)/) do |c|
+            GLOB_PATTERN_MAP[c] || Regexp::escape(c)
+          end
+        return Regexp.new("^#{inner_pattern}$")
+      end
      
       extend self
      
   end
 end
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