Re: Ascii character typeing

[Pascal Bourguignon <pjb@informatimago.com>]

"Sonu" <sanjaykumar.barick@gmail.com> writes:
> hi all, i want to know how can i type ascii characters, for example in
> windows i do this by typing ALT + xxx where "xxx" is the ascii code of
> the character. so i want to know how can i do this in linux, any help
> would be apreciated...

ASCII?  Isn't it already deprecated in favor of unicode?

Any honest keyboard should allow you to entery directly ALL the
character in the ASCII code map:

SP    !   "   #   $   %   &   '   (   )   *   +   ,   -   .   /  
 0   1   2   3   4   5   6   7   8   9   :   ;   <   =   >   ?  
 @   A   B   C   D   E   F   G   H   I   J   K   L   M   N   O  
 P   Q   R   S   T   U   V   W   X   Y   Z   [   \   ]   ^   _  
 `   a   b   c   d   e   f   g   h   i   j   k   l   m   n   o  
 p   q   r   s   t   u   v   w   x   y   z   {   |   }   ~   DEL

Why would you want to type 4 keys to enter one of them when you have
direct access (or at worse, with the SHIFT modifier) to them?



Now, let's speak seriously, nowadays we use unicode characters.
Well, in emacs, you can merely use the ucs input method, where you can
type U or u followed by the four-digit hex number code of the
character.  

M-x set-input-method RET ucs RET 
U00C1  inserts:  Á
U03A9  inserts:  Ω

Then you can switch between the two input methods with C-\

But still, most of the unicode characters are more easily input using
the various emacs input methods.  If you want to type Greek, just
select the greek input method: ηελενα, if you want Russian, use the
yawerty input method: россия, etc.



Otherwise, you'd have to see at the X (xmodmap) level or at the linux
console level whether the keyboard driver include such a feature.
Perhaps you don't really want to enter random codes, but you want some
specific character.  You can design your own keyboard maps (either
linux console or X) to allow you to enter easily all kind of
characters.  



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

"You can tell the Lisp programmers.  They have pockets full of punch
 cards with close parentheses on them." --> http://tinyurl.com/8ubpf