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Subject: RE: [docbook-apps] Re: VirtualBox DocBook 5.0 VM


I'm using DocBook 5, which uses xml:id. Unfortunately, Xerces cannot handle xml:id, which means it doesn't support XPointers on its own.
 
I'll do as you suggest and try to debug the catalog. I'm not having any problems with the catalog using Saxon-Xerces.
 
Regards,
Jeff


From: DeanNelson@aol.com [mailto:DeanNelson@aol.com]
Sent: 2012-03-12 06:19
To: Jeff Powanda; bobs@sagehill.net
Cc: docbook-apps@lists.oasis-open.org
Subject: Re: [docbook-apps] Re: VirtualBox DocBook 5.0 VM

Jeff,
 
Are you using Docbook 4 or 5? Also, are you using a current version of the XSL stylesheets? Is there a reference that tells you that Saxon doesn't resolve XPointers?
 
Here is what I know from my own tools. Saxon/Xerxes and XSLTproc handle XPointers. I use them in every doc I generate. I use XSLTPROC for my production, but maintain my Saxon tools as well because they will sometimes gives me more info on a problem than xsltproc. I do use profiling and have not seen anything like what you are describing lately.
 
When I was first setting up my tools, I had a dickens of a time using catalogs. Sometimes they would thrash for a while and error out. So I turned on catalog debugging and painstakingly went through each line the debugging produced and massaged it until I was sure of what it was doing. You may be seeing some of the same issues with your own catalog. If so, turn on the debugging and weed out the "circulars"
 
Now, if you are using Docbook 5, then I should bow out of this discussion since I have not made that leap yet.
 
Regards
Dean Nelson
 
In a message dated 3/12/2012 12:08:20 A.M. Pacific Daylight Time, jpowanda@vocera.com writes:
The problem I'm having is unrelated to olinks, although I'm not sure what it is.
 
All I know is that I have problems generating larger (~400 pages) books with xsltproc using a profiling stylesheet. If I generate a small book (50 pages), it generates without any problems, even if the book has XIncludes with XPointers, profiling, and olinks.
 
If I generate a large book, the catalog resolver chugs along endlessly to resolve generic addresses to local paths. Not sure why. Perhaps there's infinite recursion going on. xsltproc eventually runs out of memory. Curious to see if anyone else observed infinite recursion problems with xsltproc. This doesn't happen with Saxon-Xerces (but Xerces has other problems with XPointers).
 
After reading this old post about infinite recursion (http://mail.gnome.org/archives/xslt/2002-December/msg00026.html) I set the inherit.keywords parameter to 0, but that didn't solve the problem:
 
<!-- Fixes a problem with xsltproc and profiling -->
<xsl:param name="inherit.keywords">0</xsl:param>

Curious to hear how you got Saxon-Xerces to work with XPointers, since Xerces doesn't support xml:id. Do you preprocess the book with xmllint or another tool?

 
Regards,
Jeff
 


From: Bob Stayton [mailto:bobs@sagehill.net]
Sent: 2012-03-10 04:22
To: DeanNelson@aol.com; Jeff Powanda; tom.browder@gmail.com
Cc: docbook-apps@lists.oasis-open.org
Subject: Re: [docbook-apps] Re: VirtualBox DocBook 5.0 VM

I'm curious too about the olink problem you mentioned.  Olink collection and olink resolution should both take place after any XIncludes have been processed and resolved, so I'm not clear how an XInclude with an XPointer would create a problem.  Can you provide any more specifics about that problem?
 
Bob Stayton
Sagehill Enterprises
bobs@sagehill.net
 
 
----- Original Message -----
Sent: Saturday, March 10, 2012 3:23 PM
Subject: Re: [docbook-apps] Re: VirtualBox DocBook 5.0 VM

Jeff,
Maybe I am not understanding the depth of the issue because I use XIncludes and XPointers and they work for me both in xsltproc and Saxon/Xerces (I maintain both in my development environment).
 
I have also used profiling in the past and had no problem. However, maybe you have come across an issue that I have not seen yet.
 
Regards,
Dean Nelson
 
In a message dated 3/10/2012 1:06:20 P.M. Pacific Standard Time, jpowanda@vocera.com writes:
I'm using single-pass profiling. I've tried using two-pass profiling, and that allows me to generate our larger books with xsltproc, but when I do that the olinks to any XIncludes that use XPointers don't get resolved correctly. XPointers remain a problem for me whether I use xsltproc or Saxon-Xerces-J (which doesn't support xml:id syntax). Not sure what I should do, other than avoid using XPointers.
 
Regards,
Jeff


From: DeanNelson@aol.com [mailto:DeanNelson@aol.com]
Sent: 2012-03-10 07:52
To: Jeff Powanda; tom.browder@gmail.com
Cc: docbook-apps@lists.oasis-open.org
Subject: Re: [docbook-apps] Re: VirtualBox DocBook 5.0 VM

Jeff,
I use XIncludes, and not olinks or profiling (on the file I just used). The only difference in the switches is that I use --novalid which skips the  skips the Dtd loading phase.
 
Are you using single pass profiling or two-pass?
 
Dean
 
In a message dated 3/9/2012 10:57:20 P.M. Pacific Standard Time, jpowanda@vocera.com writes:
Hmm, my docs are tiny compared to that. Are you using XIncludes, olinks, and profiling?

Here's how I'm calling xsltproc in my build.bat file:

call xsltproc.exe
    --nonet
    --xinclude
    --stringparam profile.condition %conditions%
    --stringparam olink.debug 0
    --stringparam collect.xref.targets "no"
    --output %output_file% 
    --stringparam insert.xref.page.number yes
    --stringparam insert.olink.page.number maybe 
    --stringparam target.database.document %olink_file% 
    --stringparam current.docid %doc_id%
    %xsl_file%
    %book_file%

Regards,
Jeff

________________________________

From: DeanNelson@aol.com [mailto:DeanNelson@aol.com]
Sent: 2012-03-09 03:06
To: DeanNelson@aol.com; Jeff Powanda; tom.browder@gmail.com
Cc: docbook-apps@lists.oasis-open.org
Subject: Re: [docbook-apps] Re: VirtualBox DocBook 5.0 VM


One more bit of info. I just ran a 1200 page doc (XP/2Gb/xsltproc) and it used about 230 MB of memory to churn through that doc.

In a message dated 3/9/2012 2:44:36 P.M. Pacific Standard Time, DeanNelson@aol.com writes:

        Jeff,
    I routinely process books over 400 pages (XP/2Gb/xsltproc) and rarely see a memory error. However, when I DO see one, it is because I have done something wacky in the XSL or have done something in the XML that was "legal" but not supported in the XSL. Rare though.
   
    What command line switches are you using?
   
    Regards,
    Dean Nelson
   
    In a message dated 3/9/2012 2:22:48 P.M. Pacific Standard Time, jpowanda@vocera.com writes:

       
        I'm using the Windows version of xsltproc.
       
        xsltproc worked fine on our smaller manuals (~50 pages), but it wasn't able to handle our largest books (~400 pages). I need to be able to build all the manuals on the writers' machines, which are Windows 7 or Windows XP laptops with only 2 GB of RAM. Xsltproc couldn't seem to handle those constraints. Saxon+Xerces can.
       
        If other people are using xsltproc under similar constraints on Windows and it's working fine, perhaps I'm doing something wrong.
       
        Regards,
        Jeff
       
       
       
        -----Original Message-----
        From: Tom Browder [mailto:tom.browder@gmail.com]
        Sent: 2012-03-09 09:31
        To: Jeff Powanda
        Cc: Docbook Apps Help list
        Subject: Re: [docbook-apps] Re: VirtualBox DocBook 5.0 VM
       
        On Fri, Mar 9, 2012 at 11:25, Jeff Powanda <jpowanda@vocera.com> wrote:
        > Ok, thanks. I switched from xsltproc a few years ago when it was
        > unable to process our largest manuals (it ran out  of memory).
       
        Was that a Windows version, or *unix?
       
        Size of manual?
       
        I'm sure libxslt folks would love to hear about that whichever system it was on.
       
        -Tom
       
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