Support control shift u for Unicode input as does GTK. lisp/ChangeLog addition: 2014-08-05 Aidan Kehoe <kehoea@parhasard.net> * keymap.el: * keymap.el (event-apply-modifiers): When a character keysym has case information, apply the shift modifier to it by upcasing it. * keymap.el (synthesize-keysym): Document this a little. * keymap.el (synthesize-unicode-codepoint): New. Like #'synthesize-keysym, but synthesizing a Unicode codepoint. * keymap.el (function-key-map-parent): Bind control shift u to synthesize a Unicode character input, as does GTK+ and as specified by ISO 14755.