kicad-developers team mailing list archive

[Dick Hollenbeck <dick@...>]

Brian Sidebotham wrote:
> > 2009/10/27 Brian Sidebotham <brian.sidebotham@...>:
> >
> > > Hi Guys,
> > >
> > > Please find attached two screenshots showing the inconsistent label
> > > directions between normal labels and global labels, and a patch to fix
> > > this problem.
>
> Hmm, I've been looking at this but I can't really see a way of
> supporting this without breaking previous schematics.
>
> Has anyone got any suggestions about how to do this change without
> breaking old schematics?

Have you approached the issue from the perspective of:

a schematic conversion is done at time of first load, and the converted 
schematic uses an altogether new representation, such as a word vs. what 
was formerly a number or single character?

The schematic loader then has to be able to recognize either of these 
representations for awhile.

And when saving you use the new represenation. This does not break old 
schematics, which everyone probably agrees we should never do.

I have not spent any time on this, but it is a general idea that might 
be helpful. As these file formats evolve, we are trying to get them to 
be more self documenting anyway.

Dick