Buddy,

>I have been searching for a method to input/display ASCII encoded Malayalam 
>text 
>
>in my GNU/Linux system.

You gotta get a lot of things straight.

1) You *CANNOT* encode Malayalam in ASCII: 
http://en.wikipedia.org/wiki/Character_encoding
2) ASCII doesn't support anything other than basic Latin: 
http://en.wikipedia.org/wiki/ASCII
3) Crude methods like ISCII are _obsolete_: 
http://en.wikipedia.org/wiki/Indian_Script_Code_for_Information_Interchange
4) Unicode rules: http://en.wikipedia.org/wiki/ISO_10646

>
>I created loads of such ASCII Malayalam files with Adobe Pagemaker 6.5 and 
>Pagemaker 7.0 in Microsoft Windows for my official purpose. I am not using any 

LOL ^^ (I wonder HOW one would create "ASCII" "Malayalam" files using PM... but 
anyway

>third-party Malayalam editors like ISM Gist or Sreelipi etc. Instead, I can 
>remember most of the ASCII Key codes assigned to all Malayalam letters.

Maybe you're trying to *display* Malayalam text in your console/terminal.

>
>To switch into Gnu/Linux completely, I need a solution about this ASCII texts. 

I humbly request you to *STOP* referring to ASCII. Maybe you might want to use 
an alternate term like "Plain text" file or something: 
http://en.wikipedia.org/wiki/Plain_text

>If any GNU/Linux system supports ASCII files to input and display, I think I 
>can 
>
>use Scribus or LaTex to key-in and lay-out.

All GNU/Linux systems support almost all character sets _including_ ASCII. You 
don't necessarily have to need ASCII to use Sribus or LaTeX or whatever.

>
>Look the following screenshot. I took the screenshot from OpenOffice Word 
>Processor in UBUNTU 10.04. Some Koottaksharangalare not displaying properly. 
>But 
>
>some displays well.

Looks to me like a font problem.  Are they Unicode fonts?

>
>But I am not able to input any Koottaksharangal.
>

You can't. The glyphs are auto generated in complex scripts like Malayalam. 
http://en.wikipedia.org/wiki/Malayalam_script

>Eg:- To input the character "ksha" you need to hold down "alt" key and then 
>press 0163 calculater keys, and when you release the "alt" key "ksha" will 
>appear. But instead of "ksha", here in UBUNTU the following character displays
>"ΔΆ"

I sincerely believe you got this "wrong habit" from Windoze Charmap where you 
hold down alt, and press number to see a character. Points to be clarified:

1) Windoze uses brain-dead ANSI charset (Windows-1252 for the uninitiated) 
http://en.wikipedia.org/wiki/Windows_1252
2) GNU/Linux (mostly) prefers/uses/advocates Unicode

The codepage in this case U+0163 is not in Malayalam range in UCS encoding; 
0D00-0D7F is the Malayalam codepage range.

>
>Can  anybody help me to fix this? Is there any remedy to key-in ASCII text  in 
>Gnu/Linux. Even if ASCII is an obsolete method, there may be a  provision for 
>it 
>
>in GNU System, I hope!

There is no fix. Folks correct me if I'm wrong here.

You are trying to find a solution to a problem that is not a problem at all in 
the first place.

Do read, try to understand what you're dealing with. You need to input complex 
characters in OOo. That's automatically taken care of by the rendering engine: 
http://en.wikipedia.org/wiki/Complex_scripts

Happy Hacking,
Mahesh Aravind



      


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