thanks that will be helpful

still i would like to make it use as my plan B cause creating software
to colorize syntax of 3 or 4 programming languages will take lots of
time form me
so i still hope there is an open source ready made library somewhere on
the net
(( well so optimistic :-P  ))

thanks alot i think that will be really helpfull specially the jedit,

thanks alot again

i still want to thank you again your comment really helped after
searching and chasing the thread from Jedit

i got some nice tutorials for syntax coloring i would like to put them
here if any one need them

http://java.sun.com/products/jfc/tsc/articles/text/editor_kit/index.html
http://ostermiller.org/syntax/editor.html

also i found  the API used in JEdit and Jext that is  "jEdit Syntax
Package " developed by  Slava Pestov
http://syntax.jedit.org/
there is a version 2.2.1 which is exactly what i need , the only
difference is it do not support clipboard operations such as copy and
paste, that is really greate i was going to start adding the copy paste
feature to it but i just checked sourceforge for this API

and i found version 2.2.2 which actually supports Copy Paste and other
clipboard operations
http://sourceforge.net/project/showfiles.php?group_id=32650&package_id=24768&rel
ease_id=105717

now i can say my project will be compeleted easily

hope this links will help any one else searching for related stuff

thanks again Chris Uppal and others