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Re: List of effective pages?

Subject: Re: List of effective pages?
From: Jingjun Long <longjingjun@xxxxxxxxx>
Date: Sun, 16 Jan 2011 16:45:52 +0800
Re:  List of effective pages?
Unlike word or FrameMaker, there is no page information in XML data. When asking for LEP, it really means asking for a page-based solution.

To support this, one idea is to have page information, use PI or element in a different namespace, inside the XML data. Your stylesheet do page break according to this page PIs or elements when composing. So that you can maintene individual revision number, revision date, change description, change status, page number and so on for each page. This will be able to support alpha page, page 138A/B, since you can save page number on each page in the xml data. Via this way, generate LEP is not difficult: go through the whole manual and find out all pages in the XML data and list each page's status in a table. You can also maintain change description for each page and can generate revision highlights.

There are still problems to solve: if the user add content or remove content and the page break in original place will be incorrect. They should be adjusted manually or automatically.

I implement this using XSL-FO on top of RenderX and Arbortext PE. When implementing, the key problem to solve is to know which content/elements in which page. In RenderX, the approache is to look into and process the intermedia file, XEP. In arbortext, the approach is to generate a intermedia file which page information and elements information in it by doing a compose. Please have a look at linenum function and formatcompletehook/formatcontinuehook.

According to my experience, It is a challenge task to implement a page-based solution when the customer decided to go XML-based publishing.

Hope this helps,
Jingjun Long

d: 1/16/2011 9:08 AM, Dan Vint ei:
At 03:56 PM 1/15/2011, G. Ken Holman wrote:
At 2011-01-15 14:43 -0800, Dan Vint wrote:
Not looking for the code or anything right now, but I need to put together a plan for a new project. I'm working in a milspec environment and they require that changes be tracked by release for when/what changed that page.

So first release everything is baseline and no problem. With subsequent minor revisions, paragraphs and such will be modified. We will track those changes with markup and a revision level. I need to maintain the original page breaks as well so that I don't get information reflowing between releases. Major additions would create a new point page as well.

The footer for these changed pages will reflect the latest change that was made and I need to produce a list of pages (a table up front) that lists every page and its current revision.

Typically this would then be produced as a change package (just the updated pages) for loose leaf publishing but they haven't required that yet.

Typically this has been done with FOSIs and either Arbortext publishing or Datalogics composer, I would like to do this with FO if possible.

XSL-FO doesn't support loose leaf publishing because there is no knowledge of page breaks from one publishing run to the next. No database of page images either.

You might make some progress with an intermediate form like XEP's, and comparing one to the next, but then I'm unclear how you would create change pages, say page 138A/B between pages 137/138 and 139/140. How would you "restart" page 139 in the following run at the exact same point where page 139 started on the previous run?

What I have seen with FOSI implementations is they put a PI at the page break from the first run.. When I first started this email I was only thinking about the LEP itself and capturing the information about what changed. I had forgotten about the point pages until I was writing.

I figure this was going to be difficult.

Thankfully when my customers with LEP requirements have come to me for XSL-FO they've been willing to abandon the LEP in favour of getting to use XSL-FO. In each case they were abandoning loose-leaf for complete electronic products. If you have change markup on the way in then using markers one can tell that on a given page there is changed content by adding something in the header/footer that the page has changed, but you can't preserve the page breaks that follow changed content.

If you can't convince your client to abandon loose-leaf, I think you'll have to use something other than XSL-FO.

I have a hybrid product as it is and I'm making recommendations to drop some features. I wasn't sure if this was one I wanted to (or could) tackle with FO. I'll have to check with Arbortext, they may have some extensions to help with this.

Thanks for the help.


. . . . . . . . . . . Ken

Contact us for world-wide XML consulting & instructor-led training
Crane Softwrights Ltd. http://www.CraneSoftwrights.com/s/
G. Ken Holman mailto:gkholman@xxxxxxxxxxxxxxxxxxxx
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Danny Vint

Panoramic Photography

voice: 619-938-3610

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