Skip Tavakkolian <[email protected]> once said:
> I don't believe there is a good way of preserving quotes (') in $*. I
> ran into this while trying to:
>
> % window winwatch -e '^(winwatch|stats|faces)' # will not work
> % window winwatch -e '''^(winwatch|stats|faces)''' # works
>
> I think this comes down to how quotes are handled in $*:
>
> % tail -1 /rc/bin/window # the relevant line
> if not echo new -cd `{pwd} $* >> `{getwctl}
>
> having to stack quotes manually makes interactions like cut-paste
> awkward/unusable.
The problem is programs being lazy about what they give to rc(1).
For example, writing
new [opitions] cmd args ...
to the wctl file of rio(4) will execute
rc -c 'cmd args ...'
and this will fail if the string passed to -c is not properly quoted.
I wrote a small tool to help with this a long time ago and modified
various programs like window(1) to use it. It's called rcquote.
% cat `{src -n rcquote | sed 's,:[0-9]+$,,'}
#include <u.h>
#include <libc.h>
void
main(int argc, char *argv[])
{
int i;
argv++,argc--;
if(argc == 0)
exits(nil);
doquote = needsrcquote;
quotefmtinstall();
for(i = 0; i < argc; i++)
print("%q%c", argv[i], i == argc-1 ? '\n' : ' ');
exits(nil);
}
% echo winwatch -e '^(winwatch|stats|faces)'
winwatch -e ^(winwatch|stats|faces)
% rcquote winwatch -e '^(winwatch|stats|faces)'
winwatch -e '^(winwatch|stats|faces)'
Cheers,
Anthony
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