On 06/04/2014 03:48 PM, Tomasz Wlostowski wrote: > On 04.06.2014 21:35, Wayne Stambaugh wrote: >> On 6/4/2014 2:33 PM, Lorenzo Marcantonio wrote: >>> On Wed, Jun 04, 2014 at 02:20:12PM -0400, Wayne Stambaugh wrote: >>>> user confusion. Where would you save them in the old kicad_pcb file >>>> format after you made changes? If Pcbnew where a read only application, >>>> then this would be less of an issue. >>> >>> That's why I questioned if it would be desiderable... >>> >>> The only thing I think would be possible to keep *backward* >>> compatibility is using optional forms, so if you don't use that feature >>> the file remain compatible (no strange layers and the file still loads). >>> I changed the quotation rules for the sexp in a backward compatible way >>> and now they are both LISP and kicad compatible. >> >> Backwards compatibility is not optional. We should always be able read >> older board and footprint file formats. That was one of the things that >> drove the design of the current layer parsing of legacy boards and the >> design of the new layer sexpr format. > Hi Wayne. > > I understood Jean-Pierre's statement as "old version must be able to > read files written by a newer version".
Old version software must only support old version files, anything else is fools gold. New software must support old files and new. _______________________________________________ Mailing list: https://launchpad.net/~kicad-developers Post to : kicad-developers@lists.launchpad.net Unsubscribe : https://launchpad.net/~kicad-developers More help : https://help.launchpad.net/ListHelp
