string.rb in geo_calc-0.7.6

- old
+ new

@@ -1,5 +1,7 @@
+class GeoDirectionMisMatch < StandardError; end;
+
 class String
   def to_rad
     parse_dms.to_rad
   end
 
@@ -17,23 +19,25 @@
     a.to_lat_lng
   end
 
   def to_lng_lat  
     a = geo_clean.split(',')
-    a = (a.last.is_a?(String) && a.last =~ /[N|S]$/) ? a.reverse : a
+    a = (a.last.is_a?(String) && a.last =~ /[N|S]$/) ? a.reverse : a    
     a.to_lng_lat
   end
   
   def to_lat
     raise "An empty String has no latitude" if self.empty?
     s = geo_clean
+    raise GeoDirectionMisMatch, "Direction E and W signify longitude and thus can't be converted to latitude, was: #{self}" if s =~ /[W|E]$/
     s = s.parse_dms if s.respond_to? :parse_dms
     s.to_f.to_lat
   end
 
   def to_lng
     raise "An empty String has no latitude" if self.empty?
-    s = geo_clean
+    s = geo_clean                 
+    raise GeoDirectionMisMatch, "Direction N and S signify latitude and thus can't be converted to longitude, was: #{self}" if s =~ /[N|S]$/
     s = s.parse_dms if s.respond_to? :parse_dms    
     s.to_f.to_lng
   end
 end
\ No newline at end of file