Xkb caps lock behavior

["bert_v" <bert.verhaeghe@gmail.com>]

Hi all,

I have the following problem. I need to change the keyboard behavior
for X with pc105 model and be layout for the CAPS_LOCK key.
When CAPS_LOCK is locked, not only the alfanumeric keys (a, z, ..)
should produce (A,Z, ...) but also the other keys (&, é, :, =, ...)
should produce (1, 2, +, /) just as the SHIFT key does. Hence CAPS_LOCK
is actually SHIFT_LOCK.

Could this be done by specifying a rule or options in xorg.conf or
should the XKB files need to be changed?

Thx in advance.