tidy up the imports, move the graphical error to a generic gerr() function in util.py and add a function for injecting URL regexps

terminatorlib/terminal.py

@@ -10,31 +10,85 @@ import gobject
 import gtk
 import pango
 
+from cwd import get_pid_cwd, get_default_cwd
+from util import dbg, err, gerr
+from config import Config
+
 try:
     import vte
 except ImportError:
-    ERROR = gtk.MessageDialog(None,
-                              gtk.DIALOG_MODAL,
-                              gtk.MESSAGE_ERROR,
-                              gtk.BUTTONS_OK,
-                              'You need to install python bindings for libvte')
-    ERROR.run()
+    gerr('You need to install python bindings for libvte')
     sys.exit(1)
 
-from cwd import get_pid_cwd, get_default_cwd
-
 class Terminal(gtk.VBox):
     """Class implementing the VTE widget and its wrappings"""
 
     vte = None
+    matches = None
+    config = None
 
     def __init__(self):
         """Class initialiser"""
         gtk.VBox.__init__(self)
+        self.matches = {}
+
+        self.config = Config()
 
         self.vte = vte.Terminal()
         self.vte.set_size(80, 24)
         self.vte._expose_data = None
         self.vte.show()
 
+        self.update_url_matches(self.config['try_posix_regexp'])
+
+    def update_url_matches(self, posix = True):
+        """Update the regexps used to match URLs"""
+        userchars = "-A-Za-z0-9"
+        passchars = "-A-Za-z0-9,?;.:/!%$^*&~\"#'"
+        hostchars = "-A-Za-z0-9"
+        pathchars = "-A-Za-z0-9_$.+!*(),;:@&=?/~#%'\""
+        schemes   = "(news:|telnet:|nntp:|file:/|https?:|ftps?:|webcal:)"
+        user      = "[" + userchars + "]+(:[" + passchars + "]+)?"
+        urlpath   = "/[" + pathchars + "]*[^]'.}>) \t\r\n,\\\"]"
+
+        if posix:
+            dbg ('update_url_matches: Trying POSIX URL regexps.  Set \
+                    try_posix_regexp = False in config to only try GNU \
+                    if you get (harmless) VTE warnings.')
+            lboundry = "[[:<:]]"
+            rboundry = "[[:>:]]"
+        else: # GNU
+            dbg ('update_url_matches: Trying GNU URL regexps.  Set \
+                    try_posix_regexp = True in config if URLs are not \
+                    detected.')
+            lboundry = "\\<"
+            rboundry = "\\>"
+
+        self.matches['full_uri'] = self._vte.match_add(lboundry + schemes + 
+                "//(" + user + "@)?[" + hostchars  +".]+(:[0-9]+)?(" + 
+                urlpath + ")?" + rboundry + "/?")
+
+        if self.matches['full_uri'] == -1:
+            if posix:
+                err ('update_url_matches: POSIX match failed, trying GNU')
+                self.update_url_matches(posix = False)
+            else:
+                err ('update_url_matches: Failed adding URL match patterns')
+        else:
+            self.matches['voip'] = self._vte.match_add(lboundry + 
+                    '(callto:|h323:|sip:)' + "[" + userchars + "+][" + 
+                    userchars + ".]*(:[0-9]+)?@?[" + pathchars + "]+" + 
+                    rboundry)
+            self.matches['addr_only'] = self._vte.match_add (lboundry + 
+                    "(www|ftp)[" + hostchars + "]*\.[" + hostchars + 
+                    ".]+(:[0-9]+)?(" + urlpath + ")?" + rboundry + "/?")
+            self.matches['email'] = self._vte.match_add (lboundry + 
+                    "(mailto:)?[a-zA-Z0-9][a-zA-Z0-9.+-]*@[a-zA-Z0-9][a-zA-Z0-9-]*\.[a-zA-Z0-9][a-zA-Z0-9-]+[.a-zA-Z0-9-]*" + rboundry)
+            self.matches['nntp'] = self._vte.match_add (lboundry + 
+                    '''news:[-A-Z\^_a-z{|}~!"#$%&'()*+,./0-9;:=?`]+@[-A-Za-z0-9.]+(:[0-9]+)?''' + rboundry)
+            # if the url looks like a Launchpad changelog closure entry 
+            # LP: #92953 - make it a url to http://bugs.launchpad.net
+            self.matches['launchpad'] = self._vte.match_add (
+                    '\\bLP:? #?[0-9]+\\b')
+
 # vim: set expandtab ts=4 sw=4: