utils.web: Provide access to the raw httpUrlRe/urlRe strings

Using the compiled regexps for a PluginRegexp method's __doc__ doesn't work.

Closes Sourceforge #2879862

Signed-off-by: James Vega <jamessan@users.sourceforge.net>

plugins/ShrinkUrl/plugin.py

@@ -136,7 +136,7 @@ class ShrinkUrl(callbacks.PluginRegexp):
                 if m is not None:
                     m.tag('shrunken')
     shrinkSnarfer = urlSnarfer(shrinkSnarfer)
-    shrinkSnarfer.__doc__ = utils.web.httpUrlRe
+    shrinkSnarfer.__doc__ = utils.web._httpUrlRe
 
     def _getLnUrl(self, url):
         url = utils.web.urlquote(url)

plugins/Web/plugin.py

@@ -105,7 +105,7 @@ class Web(callbacks.PluginRegexp):
                 s = format('Title: %s (at %s)', title, domain)
                 irc.reply(s, prefixNick=False)
     titleSnarfer = urlSnarfer(titleSnarfer)
-    titleSnarfer.__doc__ = utils.web.httpUrlRe
+    titleSnarfer.__doc__ = utils.web._httpUrlRe
 
     def headers(self, irc, msg, args, url):
         """<url>

src/utils/web.py

@@ -47,15 +47,16 @@ urlencode = urllib.urlencode
 class Error(Exception):
     pass
 
-octet = r'(?:2(?:[0-4]\d|5[0-5])|1\d\d|\d{1,2})'
-ipAddr = r'%s(?:\.%s){3}' % (octet, octet)
+_octet = r'(?:2(?:[0-4]\d|5[0-5])|1\d\d|\d{1,2})'
+_ipAddr = r'%s(?:\.%s){3}' % (_octet, _octet)
 # Base domain regex off RFC 1034 and 1738
-label = r'[0-9a-z][-0-9a-z]*[0-9a-z]?'
-domain = r'%s(?:\.%s)*\.[a-z][-0-9a-z]*[a-z]?' % (label, label)
-urlRe = re.compile(r'(\w+://(?:%s|%s)(?::\d+)?(?:/[^\])>\s]*)?)'
-                   % (domain, ipAddr), re.I)
-httpUrlRe = re.compile(r'(https?://(?:%s|%s)(?::\d+)?(?:/[^\])>\s]*)?)'
-                       % (domain, ipAddr), re.I)
+_label = r'[0-9a-z][-0-9a-z]*[0-9a-z]?'
+_domain = r'%s(?:\.%s)*\.[a-z][-0-9a-z]*[a-z]?' % (_label, _label)
+_urlRe = r'(\w+://(?:%s|%s)(?::\d+)?(?:/[^\])>\s]*)?)' % (_domain, _ipAddr)
+urlRe = re.compile(_urlRe, re.I)
+_httpUrlRe = r'(https?://(?:%s|%s)(?::\d+)?(?:/[^\])>\s]*)?)' % (_domain,
+                                                                 _ipAddr)
+httpUrlRe = re.compile(_httpUrlRe, re.I)
 
 REFUSED = 'Connection refused.'
 TIMED_OUT = 'Connection timed out.'