Re: ESC[4m does not produce underline OOPS
On Fri, Mar 01, 2013 at 11:46:42AM -0800, Thomas D. Dean wrote:
On 03/01/13 11:35, Thomas D. Dean wrote:
The ANSI standard lists ESC[4m as the code to produce an underline
export TERM=ansi80x25
printf \033[4masdfasdfasdf
produces green text, not underline text as stated in the standard.
If I put the same in c code, it works
#include stdio.h
int main() {
fputs(\033[4masdfasdf,stdout);
return 0;
}
I get underlined text.
I ran the C example in an xterm on Ubuntu!
The question remains.
Why does this produce color rather than underlined text?
The standard says ESC[32m should produce green text and ESC[4m
should produce underlined text.
It's normally about now that a Mr Thomas Dickey magically appears with
his wisdom, perhaps you could cc him (his address is on the net, but get
a more recent one, I don't think he uses his invisible island address
anymore, although I could be wrong.
--
If you're not careful, the newspapers will have you hating the people
who are being oppressed, and loving the people who are doing the
oppressing. --- Malcolm X
--
To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org
with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Archive: http://lists.debian.org/20130302110421.GD9278@tal
Re: ESC[4m does not produce underline OOPS
On 03/01/13 11:35, Thomas D. Dean wrote:
The ANSI standard lists ESC[4m as the code to produce an underline
export TERM=ansi80x25
printf \033[4masdfasdfasdf
produces green text, not underline text as stated in the standard.
If I put the same in c code, it works
#include stdio.h
int main() {
fputs(\033[4masdfasdf,stdout);
return 0;
}
I get underlined text.
I ran the C example in an xterm on Ubuntu!
The question remains.
Why does this produce color rather than underlined text?
The standard says ESC[32m should produce green text and ESC[4m should
produce underlined text.
Tom Dean
--
To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org
with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Archive: http://lists.debian.org/513105a2.8000...@speakeasy.org
Re: ESC[4m does not produce underline OOPS
On 02/03/13 08:46, Thomas D. Dean wrote:
On 03/01/13 11:35, Thomas D. Dean wrote:
The ANSI standard lists ESC[4m as the code to produce an underline
export TERM=ansi80x25
printf \033[4masdfasdfasdf
produces green text, not underline text as stated in the standard.
If I put the same in c code, it works
#include stdio.h
int main() {
fputs(\033[4masdfasdf,stdout);
return 0;
}
I get underlined text.
I ran the C example in an xterm on Ubuntu!
The question remains.
Why does this produce color rather than underlined text?
The standard says ESC[32m should produce green text and ESC[4m should
produce underlined text.
Are you doing this on a (colour) linux console, rather than an xterm?
Apparently it can't do underline, and simulates it with a different
colour instead. See 'man console_codes', or here:
https://www.kernel.org/doc/man-pages/online/page/man4/console_codes.4.html
I don't think setting TERM will make any difference; it's your program
that has to interpret that (usually via terminfo and associated
libraries) and send the correct escape sequences - but you're sending
them yourself anyway.
Richard
--
To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org
with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Archive: http://lists.debian.org/5131398c.9090...@walnut.gen.nz
Re: ESC[4m does not produce underline OOPS
Richard Hector wrote:
On 02/03/13 08:46, Thomas D. Dean wrote:
On 03/01/13 11:35, Thomas D. Dean wrote:
The ANSI standard lists ESC[4m as the code to produce an underline
export TERM=ansi80x25
printf \033[4masdfasdfasdf
produces green text, not underline text as stated in the standard.
If I put the same in c code, it works
#include stdio.h
int main() {
fputs(\033[4masdfasdf,stdout);
return 0;
}
I get underlined text.
I ran the C example in an xterm on Ubuntu!
The question remains.
Why does this produce color rather than underlined text?
The standard says ESC[32m should produce green text and ESC[4m should
produce underlined text.
Are you doing this on a (colour) linux console, rather than an xterm?
Apparently it can't do underline, and simulates it with a different
colour instead. See 'man console_codes', or here:
https://www.kernel.org/doc/man-pages/online/page/man4/console_codes.4.html
404 File not found.
Hugo
I don't think setting TERM will make any difference; it's your program
that has to interpret that (usually via terminfo and associated
libraries) and send the correct escape sequences - but you're sending
them yourself anyway.
--
To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org
with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Archive: http://lists.debian.org/kgrhfg$ols$1...@ger.gmane.org
Re: ESC[4m does not produce underline OOPS
On Mar 1, 2013, at 5:34 PM, Hugo Vanwoerkom wrote: 404 File not found. Google 'console_codes(4) - Linux manual page'. -- Glenn English -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/7ff07ec2-5efb-434b-bf3e-5f425256c...@slsware.com
Re: ESC[4m does not produce underline OOPS
On 03/01/13 16:56, Glenn English wrote: The linux console is a HDMI display attached to a RaspberryPi. I changed to ncurses5. Looks like the display does not support underline. Thanks, Tom Dean -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/513174f0.6030...@speakeasy.org
Re: ESC[4m does not produce underline OOPS
On 02/03/13 13:34, Hugo Vanwoerkom wrote:
Richard Hector wrote:
On 02/03/13 08:46, Thomas D. Dean wrote:
On 03/01/13 11:35, Thomas D. Dean wrote:
The ANSI standard lists ESC[4m as the code to produce an underline
export TERM=ansi80x25
printf \033[4masdfasdfasdf
produces green text, not underline text as stated in the standard.
If I put the same in c code, it works
#include stdio.h
int main() {
fputs(\033[4masdfasdf,stdout);
return 0;
}
I get underlined text.
I ran the C example in an xterm on Ubuntu!
The question remains.
Why does this produce color rather than underlined text?
The standard says ESC[32m should produce green text and ESC[4m should
produce underlined text.
Are you doing this on a (colour) linux console, rather than an xterm?
Apparently it can't do underline, and simulates it with a different
colour instead. See 'man console_codes', or here:
https://www.kernel.org/doc/man-pages/online/page/man4/console_codes.4.html
404 File not found.
Sorry - fail with copy/paste and attempting to fix annoying line wraps -
which only appear in my mailer.
https://www.kernel.org/doc/man-pages/online/pages/man4/console_codes.4.html
ie s/page/pages/
Richard
--
To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org
with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Archive: http://lists.debian.org/513180ba.4010...@walnut.gen.nz
