gEDA-bug: [ geda-Patches-1661760 ] New refdes numbering tool

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Patches item #1661760, was opened at 2007-02-16 11:54
Message generated for change (Tracker Item Submitted) made by Item Submitter
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Category: utilities
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Nobody/Anonymous (nobody)
Summary: New refdes numbering tool

Initial Comment:
As promised at the code sprint, I've developed a new refdes numbering tool.  I'm tentatively calling it grefdes and it tries very hard to just "Do the Right Thing"(TM).

By default, grefdes is gentle and preserves all existing refdes.  As designers who have gone through layout know, it is extremely inconvenient to have a PCB layed out and then have all the reference designators change underneath essentially putting everything in the wrong place.  For the same reason, new unassigned refdes are added at the end of the range.  When ECOs are done on a board it is easier for the layout engineer to have the parts show up as new refdes and in an unplaced location off the board.  If existing refdes are reused then the layout engineer might not notice that R2, which was already placed, now has terribly long traces.

Here's the output from grefdes --help

////////////////////////////////////////////////////////////////////////////////////////
USAGE : grefdes [--test] [--renum||--reuse||--clear] [--pgskip #] sch1 [...schN]
USAGE : grefdes --help
USAGE : grefdes --version
////////////////////////////////////////////////////////////////////////////////////////

grefdes reads a set of gschem schematic files and numbers the reference designators.
By default, existing reference designators are preserved and unassigned refdes are 
given numbers above the existing range.  The original schematics are modified and 
overwritten unless the --test option is set.

Options:

  --help        Displays this help message.

  --clear       Clear all reference designators to their unassigned(X?) form.

  --pgskip [#]  When this flag is used, components on the first schematic sheet
                are numbered starting with 101.  On the second sheet, they start
                with 201, etc.  Specifying a value sets the gap between pages.
                For example, --pgskip 10 will start with 11, 21, 31, etc.

  --renum       Force all reference designators to be renumbered.  
                Existing refdes are overwritten.

  --reuse       Reuse gaps in the refdes range for newly assigned designators.
                Given a schematic with U1,U3,U10 any new refdes would be added
                at U2, U4-U9, and U11-.

  --test        Perform all operations but leave results in new files whose names are 
                generated by appending ".renum" to the original file name. 
                The default is to overwrite the original schematic.

  --version     Display the program version


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