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Manpage of VT\-IS\-UTF8

VT\-IS\-UTF8

Section: Linux User's Manual (1)
Updated: 10 Aug 1998
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NAME

vt-is-UTF8 - check whether current VT is in UTF8- or byte-mode.

 

SYNOPSIS

vt-is-UTF8 [-h|--help] [-V|--version] [-q|--quiet]

 

DESCRIPTION

vt-is-UTF8 checks whether the current VT is in UTF8 mode, by writing (and erasing afterwards) a 3-byte-long UTF8 sequence, and looking how much chars where displayed by the console driver.

A message telling in which mode the console is is then written to stdout (except if the --quiet option was given).

If the --quiet option is not given, the value returned is 1 if an error occurs, else 0.

 

OPTIONS

-h --help
display version number, a short help message and exit.

-V --version
display version number and exit.

-q --quiet
do not print on stdout in with mode we are, but return the state as exit-status 1 if in UTF8-mode, 0 if in byte-mode. In case of error, 0 is returned and a message is displayed on stderr.

 

BUGS

The check should be done by directly asking the kernel, which is not possible as of kernels 2.0.x.

As of kernel 2.0.35, the byte-mode is sometimes erroneously detected as UTF8-mode, after switching from a 512-chars font to a 256-chars font. This is probably a console-driver bug.

 

SEE ALSO

unicode_start(1), unicode_stop(1).


 

Index

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
BUGS
SEE ALSO

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