Mail Archives: cygwin/2006/03/28/08:58:50
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According to Igor Peshansky on 3/27/2006 9:54 PM:
>
> Incidentally, since this subject came up: ls has a "--show-control-chars"
> option, but rm, mv, cp, and a bunch of other tools don't. So, if you run
> rm in interactive mode, it doesn't display filenames properly.
Interesting question; I don't recall ever seeing this topic asked before
here or upstream, so I don't know where to search either. I'll do some
upstream asking, to see what might be improved.
Meanwhile, looking in the source code, most of the coreutils use a wrapper
function quote(), which uses quoting style 'locale' without recourse. On
the other hand, ls first reads the QUOTING_STYLE environment variable;
then uses -b to select 'escape', -N to select 'literal', -Q to select 'c',
or --quoting-style to select a particular style; falling back to a default
of 'literal' (for now, with a threat of changing the default to 'shell' in
the future). Then ls does a post-pass depending on
- --show-control-characters that converts control characters to '?'. The
difference in default quoting style is the reason that rm and friends
display octal sequences instead of literal accented characters for
characters that fail the isprint test (outside of 0x20 - 0x7e).
- --
Life is short - so eat dessert first!
Eric Blake ebb9 AT byu DOT net
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