--- rxvt-unicode/src/urxvt.pm	2006/01/12 12:05:28	1.88
+++ rxvt-unicode/src/urxvt.pm	2006/01/13 01:09:37	1.91
@@ -119,14 +119,27 @@
    ...
 
 For example, the following will transform selections of the form
-C<word:number> into C<vi +$number $word>:
+C<filename:number>, often seen in compiler messages, into C<vi +$filename
+$word>:
 
-   URxvt.selection-autotransform.0: s/^(S+):(d+):?$/vi +$2 $1\\x0d/
+   URxvt.selection-autotransform.0: s/^(\\S+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
 
 And this example matches the same,but replaces it with vi-commands you can
-paste directory into your (vi :) editor:
+paste directly into your (vi :) editor:
 
-   URxvt.selection-autotransform.0: s/^(S+):(d+):?$/\\x1b:e $1\\x0d:$2\\x0d/
+   URxvt.selection-autotransform.0: s/^(S+):(d+):?$/\\x1b:e \\Q$1\\E\\x0d:$2\\x0d/
+
+Of course, this can be modified to suit your needs and your editor :)
+
+To expand the example above to typical perl error messages ("XXX at
+FILENAME line YYY."), you need a slightly more elaborate solution:
+
+   URxvt.selection.pattern-0: ( at .*? line \\d+\\.)
+   URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)\\.$/\x1b:e \\Q$1\E\\x0d:$2\\x0d/
+
+The first line tells the selection code to treat the unchanging part of
+every error message as a selection pattern, and the second line transforms
+the message into vi commands to load the file.
 
 =item mark-urls