fixed ]$ and ]~ (pop from Q-Reg stack to special Q-Registers)

* This was setting only the teco_doc but wasn't calling the necessary
  set_string() methods.
* The idiom [$ FG...$ ]$ to change the working directory temporarily
  now works.
* Similarily you can now write [~ ^U~...$ ]~ to change the clipboard
  temporarily.
* Added test suite cases. The clipboard is not tested since
  it's not supported everywhere and would interfer with the host system.
* Resolved lots of redundancies in qreg.c.
  The clipboard and workingdir Q-Regs have lots in common.
  This is now abstracted in the "external" Q-Reg base "class"
  (ie. via initializer TECO_INIT_QREG_EXTERNAL()).
  It uses vtable calls which is slightly more inefficient than per
  register implementations, but avoiding redundancies is probably more
  important.

0 files changed, 0 insertions, 0 deletions