lib/fig/grammar.treetop in fig-0.1.22 vs lib/fig/grammar.treetop in fig-0.1.23

@@ -97,10 +97,10 @@
   rule string
     '"' value:(!'"' . )* '"' ws
   end
 
   rule descriptor
-    ((package:[a-zA-Z0-9.-]+ ("/" version:[a-zA-Z0-9.\-]+)? (":" config:config_name)? ws) / 
+    ((package:[a-zA-Z0-9.-]+ ("/" version:[a-zA-Z0-9_\-.]+)? (":" config:config_name)? ws) / 
     (":" config:config_name ws)) {
       def get_version
         elements.each do |element|
           if element.respond_to?(:version)
             return element.version.text_value