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Subject: RE: [office-collab] Changing the start-tag of an element
I was just amused about one feature of switching between paragraph or heading. When you switch to heading, you now have something that may show up in the TOC (but in some sense, it is an insertion in the context of the TOC, not a change) and also impact numberings in the body and the TOC. Just another place to be adroit about how secondary effects because of dependencies are handled. Not sure there is much to say about this at the format level, but it is an invitation for an implementation to be cool about it. -----Original Message----- From: Dennis E. Hamilton [mailto:dennis.hamilton@acm.org] Sent: Wednesday, April 27, 2011 09:33 To: 'Tristan Mitchell' Cc: 'office-collab@lists.oasis-open.org' Subject: RE: [office-collab] Changing the start-tag of an element I agree that it should not be a bucket replacement. It's not how the user sees it and is clearly unnatural. I would think one would treat it as an exceptional kind of style change (and since style changes are attribute changes) and maybe bundle it with ACT:attribute-change since the progression there needs to be consistent with the changes in the start tag. When working out ACT it might be useful to have an ACT:tag-change rather than attribute-change, and include both start-tag substitutions and attribute modifications of all kinds. It is unfortunate that end-tags do not have attributes, because this would have allowed helpful markers where ODF? alters and inserts/deletes/moves end tags as part insertions and deletions and/or their rejection. Perhaps helpers that track end-tag manipulations could be recorded in the start tags as well, though this may be over-loading and over-constraining the situation. I'm just speculating about that prospect, because the actual invariant conditions for insertion and removal and acceptance/rejection of need to be nailed down first to know what value additional markers or attributes can provide. I note, in passing, that there are different levels of abstraction for some of these. For example, editing the text of a caption should be a text change and not have it matter that it is in the interior of a shape or table object. Also, editing accessibility information may have to be different, depending on whether that is in an attribute value rather than element content, etc., whether it is a link to a content object that is what is actually edited, etc. It may not be suitable to apply a single mechanism to all of these cases, even though we don't want to proliferate mechanisms unnecessarily. - Dennis -----Original Message----- From: Tristan Mitchell [mailto:tristan.mitchell@deltaxml.com] Sent: Wednesday, April 27, 2011 01:16 To: dennis.hamilton@acm.org Cc: office-collab@lists.oasis-open.org Subject: Re: [office-collab] Changing the start-tag of an element Hi Dennis, From what I have tried out (using OOo 3.2.1 on Mac OS X), changing a paragraph with a paragraph style into a paragraph with a heading style does not cause any changes to be recorded in OOo. The underlying XML as you say, changes from a text:p to a text:h as well as changing the style name attribute. This element name change will need to be considered, either using the remove-leaving-content / insert-around-content mechanism or with a bucket replacement mechanism. The issue I have with the bucket replacement is that it also causes all of the text content to be deleted and inserted, unless of course a specialized element / attribute can be used to inform the application that this should not be the case. Regards, Tristan On 27 Apr 2011, at 03:20, Dennis E. Hamilton wrote: > I take it back. Changing between a heading style and a paragraph style in either direction will definitely change the start tag of an element. It is possible to convert a <text:a> to something else, but that might be a matter of just unwrapping the interior of the <text:a> or turning it into a <text:span>. These is not specifically a consequence of a change of attribute, although it might involve an attribute change at the same time. > > I don't know if OO.o an LOffice show these as style changes or not, but that is what it looks like to the user, who has no idea about the start tag. > > - Dennis > > -----Original Message----- > From: Dennis E. Hamilton [mailto:dennis.hamilton@acm.org] > <http://lists.oasis-open.org/archives/office-collab/201104/msg00103.ht > ml> > Sent: Tuesday, April 26, 2011 13:15 > To: 'John Haug'; office-collab@lists.oasis-open.org > Subject: RE: [office-collab] How to define restrictions: was 'Convergence of proposals' > > [ ... ] > > Change tracking that changes the start tag of an element to be a different local name is pretty uncommon. I don't think that can happen in ODF, although it is routine to change end tags and to add end tags somewhere beyond the ending point of a change (insertion or deletion). So I don't think element-name changing will have to be dealt with as part of ACT on the attributes of an element. > > There might be some changes where there is a relationship between attributes of the element and what the element content is and that might be messy with regard to maintaining validity of the document. That has to be checked for. I can't think of a case off hand but I think there may be some cases, especially where content is switched from in-line to out-of-line based on an attribute pattern, and the out-of-line method can be peculiar (use of DDE with a filter, for example). This means there has to be synchronization of the attribute change and content changing in some cases, if such changes are permitted as ACT trackable. > > [ ... ] > > > --------------------------------------------------------------------- > To unsubscribe from this mail list, you must leave the OASIS TC that > generates this mail. Follow this link to all your TCs in OASIS at: > https://www.oasis-open.org/apps/org/workgroup/portal/my_workgroups.php > -- Tristan Mitchell, DeltaXML Ltd "Change control for XML" T: +44 1684 869 035 E: tristan.mitchell@deltaxml.com http://www.deltaxml.com Registered in England 02528681 Reg. Office: Monsell House, WR8 0QN, UK --------------------------------------------------------------------- To unsubscribe from this mail list, you must leave the OASIS TC that generates this mail. Follow this link to all your TCs in OASIS at: https://www.oasis-open.org/apps/org/workgroup/portal/my_workgroups.php
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