Changing key bindings of printable chars

Changing key bindings of printable chars

[Paul Batt]

How can I change the key binding of a single printable character key to
another? I need to have "z" and "Z" print "y" and "Y" and vice versa and I
need to have RET do a double-return e.g. two line feeds instead of only one.
(I found many peaces of instruction how to change key bindings of double
key-strokes like C-x but can't just figure out how to do it for a single
printable character key). Thank you.

Re: Changing key bindings of printable chars

[Michael Slass]

"Paul Batt" <paul@pbatt.ch> writes:

>How can I change the key binding of a single printable character key to
>another? I need to have "z" and "Z" print "y" and "Y" and vice versa and I
>need to have RET do a double-return e.g. two line feeds instead of only one.
>(I found many peaces of instruction how to change key bindings of double
>key-strokes like C-x but can't just figure out how to do it for a single
>printable character key). Thank you.
>
>
>
>
>
for Y,y,Z, and z ...
(local-set-key "Y" (lambda () (interactive) (insert "Z")))
... and so on


for return
(local-set-key "\C-m" (lambda () (interactive) (newline 2)))


I'm almost afraid to ask why you want this, but not quite.  Why do you
want this?
-- 
Mike Slass

Re: Changing key bindings of printable chars

[David Vanderschel]

"Paul Batt" <paul@pbatt.ch> wrote in message
news:2k0tudF160v27U1@uni-berlin.de...
> How can I change the key binding of a single printable character key to
> another? I need to have "z" and "Z" print "y" and "Y" and vice versa

Check out keyboard-translate-table in the "Translating
Input" info node for elisp.  The keyboard-translate
function is probably what you need.  (I just made an
interesting mistake testing it:  I did
(keyboard-translate ?z ?y) first, and I could not
easilz ( :) ) do (keyboard-translate ?y ?z) because I
could no longer enter a z!  I solved the problem by
copying one from the buffer.  Word to the wise:
Compose both functions calls before executing either.)

>and I need to have RET do a double-return e.g. two
>line feeds instead of only one.  ...

I am not sure, but I think this probably requires use
of the function-key-map (same info node).  You may be
confusing ^M and ^J.

Regards,
  David V.

Re: Changing key bindings of printable chars

[John Paul Wallington]

Michael Slass <miknrene@drizzle.com> writes:

> "Paul Batt" <paul@pbatt.ch> writes:
>
>>How can I change the key binding of a single printable character key to
>>another? I need to have "z" and "Z" print "y" and "Y" and vice versa and I
[...]
> for Y,y,Z, and z ...
> (local-set-key "Y" (lambda () (interactive) (insert "Z")))

Commands needn't be functions -- they could be simple keyboard macros,
eg:  (global-set-key "Y" "Z")

Re: Changing key bindings of printable chars

[Kevin Rodgers]

John Paul Wallington wrote:
 > Michael Slass <miknrene@drizzle.com> writes:
 >>"Paul Batt" <paul@pbatt.ch> writes:
 >>>How can I change the key binding of a single printable character key to
 >>>another? I need to have "z" and "Z" print "y" and "Y" and vice versa and I
 > [...]
 >
 >>for Y,y,Z, and z ...
 >>(local-set-key "Y" (lambda () (interactive) (insert "Z")))
 >
 > Commands needn't be functions -- they could be simple keyboard macros,
 > eg:  (global-set-key "Y" "Z")

Yes, but that combined with (global-set-key "Z" "Y") to meet Paul's
requirements leads to infinite recursion.

-- 
Kevin Rodgers

Re: Changing key bindings of printable chars

[Paul Batt]

"Michael Slass" <miknrene@drizzle.com> schrieb im Newsbeitrag
news:m3zn6s1qev.fsf@eric.rossnet.com...
> "Paul Batt" <paul@pbatt.ch> writes:
(...)
> I'm almost afraid to ask why you want this, but not quite.  Why do you
> want this?

Mike
I expected the question. The Z-Y thing is because I write German in an
English environment occasionally. English and German keyboards have Z and Y
replaced with each other. I could handle this by changing the keyboard
settings in the OS of course, but other (English tongue) people use the
computer also, and I might one day forget to switch back; they'd probably
kill me. Double-RET is because I use refill-mode and longlines-mode and I
found these to work better with an emtpy line between paragraphs (there is
also the idea with "hard" Returns, but this does not help much and besides
that I prefer two line feed paragraphs in plain ascii text anyway). So I
hope to somehow get my own minor mode working with Z and Y replaced and a
double line feed for my texts.
-Paul

Re: Changing key bindings of printable chars

[Michael Slass]

"Paul Batt" <paul@pbatt.ch> writes:

>Mike
>I expected the question. The Z-Y thing is because I write German in an
>English environment occasionally. English and German keyboards have Z and Y
>replaced with each other. I could handle this by changing the keyboard
>settings in the OS of course, but other (English tongue) people use the
>computer also, and I might one day forget to switch back; they'd probably
>kill me. Double-RET is because I use refill-mode and longlines-mode and I
>found these to work better with an emtpy line between paragraphs (there is
>also the idea with "hard" Returns, but this does not help much and besides
>that I prefer two line feed paragraphs in plain ascii text anyway). So I
>hope to somehow get my own minor mode working with Z and Y replaced and a
>double line feed for my texts.
>-Paul

Ok, thanks for satisfying my curiosity :)
Did any of the posted answers work for you?

-- 
Mike Slass

Re: Changing key bindings of printable chars

[Paul Batt]

"Michael Slass" <miknrene@drizzle.com> schrieb im Newsbeitrag
news:m3d63nz1p7.fsf@eric.rossnet.com...
> "Paul Batt" <paul@pbatt.ch> writes:
>
> Ok, thanks for satisfying my curiosity :)
> Did any of the posted answers work for you?

Don't know yet. I'll try next week. If not I'll be glad if I may ask again.
Thanks, so far.
Paul

Re: Changing key bindings of printable chars

[John Paul Wallington]

Kevin Rodgers <ihs_4664@yahoo.com> writes:

>  > Commands needn't be functions -- they could be simple keyboard macros,
>  > eg:  (global-set-key "Y" "Z")
>
> Yes, but that combined with (global-set-key "Z" "Y") to meet Paul's
> requirements leads to infinite recursion.

Doh!  I should have paid attention to what Paul asked.

Re: Changing key bindings of printable chars

[Pascal Bourguignon]

John Paul Wallington <jpw@gnu.org> writes:

> Kevin Rodgers <ihs_4664@yahoo.com> writes:
> 
> >  > Commands needn't be functions -- they could be simple keyboard macros,
> >  > eg:  (global-set-key "Y" "Z")
> >
> > Yes, but that combined with (global-set-key "Z" "Y") to meet Paul's
> > requirements leads to infinite recursion.
> 
> Doh!  I should have paid attention to what Paul asked.

But not:

(global-set-key "Y" (lambda()(interactive"*")(insert "Z")))
(global-set-key "Z" (lambda()(interactive"*")(insert "Y")))
(global-set-key "y" (lambda()(interactive"*")(insert "z")))
(global-set-key "z" (lambda()(interactive"*")(insert "y")))

And note that in anycase, using C-q z gives z and C-q y gives y.

-- 
__Pascal Bourguignon__                     http://www.informatimago.com/

There is no worse tyranny than to force a man to pay for what he does not
want merely because you think it would be good for him. -- Robert Heinlein

Re: Changing key bindings of printable chars

[Kai Grossjohann]

"Paul Batt" <paul@pbatt.ch> writes:

> I expected the question. The Z-Y thing is because I write German in an
> English environment occasionally. English and German keyboards have Z and Y
> replaced with each other.

Perhaps C-u C-\ german RET fits the bill?  It changes some other
keys, too.

Kai