- From: Henry S. Thompson <ht@inf.ed.ac.uk>
- Date: Thu, 22 Nov 2007 17:29:22 +0000
- To: public-xml-processing-model-comments@w3.org
- Cc: Deborah_Pickett@moldflow.com
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The following excerpt from the minutes of the f2f [1] bears on the
possible resolution of this topic:
Comment 15
If the href attribute of a p:import statement has a URI that begins
http://www.w3.org/ns/xproc/ then it may declare atomic steps in the p:
namespace. A processor that recognizes that URI may choose not to read
it.
It is a static error if a pipeline contains a step that isn't
declared. Consequence: you cannot write a backwards-compatible
pipeline that includes a new compound step.
It is a dynamic error to attempt to evaluate a step for which you do
not have an implementation.
Ignore unknown options in the forwards-compatible case
Changed signature counts as a static error (except for optional options)
we won't make backwards-incompatible changes to steps without changing
their names.
ht
[1] http://lists.w3.org/Archives/Public/public-xml-processing-model-wg/2007Nov/0031.html
- --
Henry S. Thompson, HCRC Language Technology Group, University of Edinburgh
Half-time member of W3C Team
2 Buccleuch Place, Edinburgh EH8 9LW, SCOTLAND -- (44) 131 650-4440
Fax: (44) 131 650-4587, e-mail: ht@inf.ed.ac.uk
URL: http://www.ltg.ed.ac.uk/~ht/
[mail really from me _always_ has this .sig -- mail without it is forged spam]
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Received on Thursday, 22 November 2007 17:29:31 UTC