(gettext.info)The --color option
9.11.1 The `--color' option
The `--color=WHEN' option specifies under which conditions colorized
output should be generated. The WHEN part can be one of the following:
The output will be colorized.
The output will not be colorized.
The output will be colorized if the output device is a tty, i.e.
when the output goes directly to a text screen or terminal
The output will be colorized and be in HTML format.
`--color' is equivalent to `--color=yes'. The default is
Thus, a command like `msgcat vi.po' will produce colorized output
when called by itself in a command window. Whereas in a pipe, such as
`msgcat vi.po | less -R', it will not produce colorized output. To get
colorized output in this situation nevertheless, use the command
`msgcat --color vi.po | less -R'.
The `--color=html' option will produce output that can be viewed in
a browser. This can be useful, for example, for Indic languages,
because the renderic of Indic scripts in browser is usually better than
in terminal emulators.
Note that the output produced with the `--color' option is _not_ a
valid PO file in itself. It contains additional terminal-specific
escape sequences or HTML tags. A PO file reader will give a syntax
error when confronted with such content. Except for the `--color=html'
case, you therefore normally don't need to save output produced with the
`--color' option in a file.
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