Re: Is there a simple way to |^a| and |^x| ?

On 06.06.17 09:26, Tim Chase wrote:
> Ah, I'd misunderstood that it was ignoring the sign and you wanted
> to respect it. But you *wanted* to ignore the sign. Thus, you can
> omit the optional sign:
>
> :'<,'>s/\d\+/\=submatch(0)+22/g
>
> or move the "\zs" after the optional minus-sign
> to get the desired result:
>
> :'<,'>s/property=-\=\zs\d\+/\=submatch(0)+22/g
>
> In both cases, submatch(0) becomes just the number without the sign.
>
> Beware the first one may do odd things in the event you have decimal
> numbers in your file, so it would change "11.1" to "33.23" since you
> don't anchor the left side.

Fortunately the dimensions are all integer mm in this case, so that
would be OK. But the problem with Postscript (or generated CNC gcode for
that matter) is that the tendency to an excess of magic numbers risks
that some of them could be unrelated to the desired redimensioning. The
correct solution is to introduce more variables, then the whole problem
goes away. It just all takes time, and a quick dash for the finish line
was tempting.

Erik

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