Perl implements its own printf formatting. But if it follows the ANSI/ISO C specification for what %#X does, it is per spec: any non-zero output is prefixed with 0x.

To always have the prifix, just mention it in the string: "0x%X".

I like your idea of using interpolation instead of join.

—John

In reply to Re: Re: golf anyone? (hexdump) by John M. Dlugosz
in thread golf anyone? (hexdump) by John M. Dlugosz

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