Adding wikipedia command.

examples/wikipedia.py

@@ -0,0 +1,33 @@
+#!/usr/bin/env python
+
+from bottle import redirect
+from cony import rich_help
+
+
+@rich_help('--help')
+def cmd_wikipedia(term):
+	'''Wikipedia page search.'''
+
+	template = """
+		<p />Search Wikipedia for the given term.  If no term is specified,
+		the home page is opened.  Otherwise, the term is searched for on
+		Wikipedia, which may result in a redirect to an exact page match,
+		or to a list of search results.
+		</p>
+
+		<p>If the term "slash" (/) followed by one of the language-specific
+		Wikipedia sub-sites, such as "/en" or "/ru", go directly to that
+		page.</p>
+
+		%rebase layout title = 'Wikipedia Help'
+		"""
+
+	if term == '--help' or term == '?' or term == '-?':
+		return dict(template = template)
+	elif not term:
+		redirect('http://www.wikipedia.org/')
+	elif term[0] == '/' and len(term) == 3:
+		redirect('http://%s.wikipedia.org/' % term[1:])
+	else:
+		redirect('http://www.wikipedia.org/w/index.php?search=%s'
+				% term.replace(' ', '+'))