On Sep 13, 2000, Bernard Dautrevaux <[EMAIL PROTECTED]> wrote:
> $ echo `expr "-" : '-[^=]*=\(.*\)'`
> expr: syntax error
> However the patch sent correct this anyway :-)
Nope, `echo' is also subject to `-' problems.
The right fix is one of:
option=`expr "x$1" : 'x-[^=]=\(.*\)'`
or
option=`echo "x$1" | sed -e '1s/^x//' -e 's/^-[^=]*=//'`
The former is slightly better in handling of backslashes, but the
second wouldn't fail for command-line arguments that are too long,
when using implementations of `expr' that fail if the matched string
is longer 128 bytes or longer.
--
Alexandre Oliva Enjoy Guarana', see http://www.ic.unicamp.br/~oliva/
Red Hat GCC Developer aoliva@{cygnus.com, redhat.com}
CS PhD student at IC-Unicamp oliva@{lsd.ic.unicamp.br, gnu.org}
Free Software Evangelist *Please* write to mailing lists, not to me
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