Re: gEDA-user: Renumbering Reference Designators

[John Doty <jpd@xxxxxxxxx>]

On Jan 14, 2009, at 10:32 PM, Kipton Moravec wrote:

> is there an easy way to change all reference designators
> from <Letter> <Number> to <Letter> <?>  so I can renumber?

sed -e 's/\(refdes=[A-Za-z].\)[0-9]*$/\1?/' old.sch >new.sch

This creates new.sch from old.sch with all of the numeric suffixes on  
the refdeses changed to "?". It works on refdeses composed of one or  
more letters followed by zero or more digits. Any that don't match  
that pattern are left alone.

Composing these isn't as hard as it looks. I learned to use "regular  
expressions" in an evening in 1970, and I bet they have saved me  
thousands of hours of work since. There are so many problems a  
simple, automated text transformation can make short work of.

John Doty              Noqsi Aerospace, Ltd.
http://www.noqsi.com/
jpd@xxxxxxxxx




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