Change
$ref =~ s/(\$\S)/\$sym->{'$1'}/g
to
$ref =~ s/(\$\S+)/\$sym->{'$1'}/g

Of course, that won't work too well if the person uses
$x+$y=7
instead of
$x + $y = 7
so you might want to use
$ref =~ s/(\$\w+)/\$sym->{'$1'}/g

I presume you will later eval this string? I don't think that's a very good idea. I would indeed recommend using a parser.

In reply to Re: Regular expression match and substitution by ikegami
in thread Regular expression match and substitution by pip9ball

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