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Subject:	Re: [geda-user] [pcb] mainline: redundant attributes: bug or feature?
To:	geda-user AT delorie DOT com
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	<xna832yyq0 DOT fsf AT envy DOT delorie DOT com>
	<20170815072851 DOT cd3656b5676b6a1371d4d887 AT gmail DOT com>
From:	"Girvin Herr (gherrl AT fastmail DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
Message-ID:	<1d90380a-5ed9-3a5c-d6ab-4cb5d3914ee0@fastmail.com>
Date:	Tue, 15 Aug 2017 11:42:27 -0700
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On 08/14/2017 10:28 PM, Nicklas Karlsson (nicklas DOT karlsson17 AT gmail DOT com) 
[via geda-user AT delorie DOT com] wrote:
>> I suspect my thoughts were this: the user API should require/expect
>> unique keys (hence get-by-value) but the low level stuff should be able
>> to preserve (erroneous) redundant keys when loading/saving a *.pcb file.
>> Making load/store git friendly is a goal in pcb.
> Attribute with same name added several times may in sort of be interpreted as a list of values. In gschem it is possible to add several attributes with same name but it never make sense and it's not possible to know for sure which value is used.
Greetings,
As a user, I might add my 2-cents to this discussion by saying that I 
use multiple instances of the "Comment" symbol attribute in my 
schematics. I would hate to see this capability be removed. Comment 
attributes to not span multiple text lines. Therefore, I need to add as 
many "Comment" attributes as I need lines of text.

Another item may be that earlier someone posted that only the first 
instance of an attribute is used and subsequent instances are ignored. 
Why not the last instance is used and previous instances are ignored, as 
in many other configuration scripts. That way the latest version would 
be used and the system would be more forgiving. A warning, not an error 
should suffice.

Girvin Herr

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