Added google calculator module

plugins/gcalc.py

@@ -0,0 +1,27 @@
+from util import hook
+import urllib, httplib, sys
+
+def doquery(argv):
+    query=urllib.urlencode({'q':argv})
+
+    start='<h2 class=r style="font-size:138%"><b>'
+    end='</b>'
+
+    google=httplib.HTTPConnection("www.google.com")
+    google.request("GET","/search?"+query)
+    search=google.getresponse()
+    data=search.read()
+
+    if data.find(start)==-1: return "Could not calculate " + argv
+    else:
+        begin=data.index(start)
+        result=data[begin+len(start):begin+data[begin:].index(end)]
+        result = result.replace("<font size=-2> </font>",",").replace(" &#215; 10<sup>","E").replace("</sup>","").replace("\xa0",",")
+        return result
+
+@hook.command
+def calc(inp):
+   '''.calc <term> -- returns Google Calculator result'''
+   if not inp or not inp.strip():
+      return calc.__doc__
+   return doquery(inp)