Are there two families of escapes sequences?

[Patrick]

Hi Everyone

I've been reading quite a bit and making progress understanding ncurses, 
terminals, locales, UTF-8, gpm etc..

I have a mouse enabled application running right under fbterm, just on 
top of the Linux tty, UTF enabled.

I am still having some trouble with color under fbterm but like all of 
my other problems I am sure it is a matter of configuration.

I found a script called 256colors2.pl which is widely available on the net.

It is not displaying colors right for me. I piped it's output to a file 
and it looks like:

<ESC>]4;16;rgb:00/00/00<ESC>

where the <ESC> is unprintable

I also found a shell script and it is displaying correctly:
for x in 0 1 4 5 7 8; do for i in `seq 30 37`; do for a in `seq 40 47`; 
do echo -ne "\e[$x;$i;$a""m\\\e[$x;$i;$a""m\e[0;37;40m "; done; echo; 
done; done; echo "";

and when it's output is piped to a file it looks like:

<ESC>[0;37;40m

again, where the <ESC> is unprintable


The two formats differ. Are there two families of escape sequences ? One 
seems to fail the other is okay.

I have tried to search but it's not easy as the escape values seem to be 
meaningless to search engines and pages such as wikipedia's don't seem 
to offer any links to a second family of escape sequences.

If anyone could point me to a tutorial, I would really love to read up 
on this so I can debug my own problems better.

Thanks-Patrick

P.S I wanted to mention that my idea about collecting cols and lines 
from xcb when under X is not that great. gpm will call xlib if it is 
running under X. It would be better to patch the gpm code then to 
re-invent the wheel.