🚀 go-pugleaf

I'm building a Text File Viewer that can display text files within a
JEditorPane with the html/text attribute set. I'm doing  it like that
becouse I want to use HTML tags to mark some text in color.
The problem starts when I display the file - The JEditorPane does not
recognize the \n for end of line. I need to go over the file and replace
the \n with <br> tags.
When I use select() to select some text, after I do all the calculations
to find the right place (the tags take space even though they are not
seen), I always miss the position by the line number.
for example : if I want to select the word "hello" on the 3rd line, the
selection will start by the second l.
I checked my algorithm and didn't find anything that can couse such a
thing. If you think you know the reason please tell me (guesses are also
welcomed).
Also if anyone knows of a good tutorial\explanation about JEditorPane
(not the sun tutorial) please send me the URL.

Thanks,
Yoni.