Stuff

+# The "PC-style" modifier scheme was introduced in xterm patch #94 (1999/3/27) 
+# and revised in patch #167 (2002/8/24). 
+# 
+# The original assignments from patch #94 for cursor-keys had some technical 
+# issues: 
+# 
+#      A parameter for a function-key to represent a modifier is just more 
+#      bits.  But for a cursor-key it may change the behavior of the 
+#      application.  For instance, emacs decodes the first parameter of a 
+#      cursor-key as a repeat count. 
+# 
+#      A parameterized string should (really) not begin with SS3 (\EO). 
+#      Rather, CSI (\E[) should be used. 
+# 
+# For these reasons, the original assignments were deprecated.  For 
+# compatibility reasons, they are still available as a setting of xterm's 
+# modifyCursorKeys resource.  These fragments list the modified cursor-keys 
+# that might apply to xterm+pcfkeys with different values of that resource.