Hi Peter Clifton,
Not sure if your changes would affect the following,
but just in case:
1) Currently, gEDA supports multiple attributes of
the same attribute name with different attriute
values assigned to a single symbol instance.
e.g.,
source=page1.sch
source=page2.sch
.... etc
2) Attribute values can contain most text characters
including "=".
I am curious if the above 2 items would be affected.
Best Regards,
Paul Tan
-----Original Message-----
From: Peter Clifton <[EMAIL PROTECTED]>
To: geda-dev <[EMAIL PROTECTED]>
Sent: Sun, 11 Nov 2007 12:32 pm
Subject: gEDA-dev: Attrib API notes
Attached is some notes on the gEDA attribute API I made when looking to
see if some things could be cut down. There is a fair bit of
code-duplication still, and I didn't finish the job in making the
simplifications.
Some brief notes on what a new API might have are below:
"""
Attribute API..
Query by name, for a particular attrib in a list of attributes (glist of
ATTRIB, or just plain "OBJECT"s which store the name=value stuff)
Helper to execute the above - for an object which might have attributes
- for a list of objects which might have
attributes
<-- THIS IS GOING ANYWAY IN FAVOUR OF glists
- for a glist of objects which might have
attributes
When we want to find the 'n'th copy of a given attribute, is that per
object, or for the entire list?
What use-cases are there using API for getting the 'n'th attribute with
a given name - could we return a list?
"""
--
Peter Clifton
Electrical Engineering Division,
Engineering Department,
University of Cambridge,
9, JJ Thomson Avenue,
Cambridge
CB3 0FA
Tel: +44 (0)7729 980173 - (No signal in the lab!)
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