Here is the thing. XSLT and XSL-FO are independent. XSL-FO has no more special meaning to XSLT than does MathML or DocBook or SVG. XSLT understands its own elements (including extensions of course). It understands no others.
<fo:page-number/> (or as Ken Holman points out, <page-number/> in the http://www.w3.org/1999/XSL/Format namespace, since we may assign any prefix we like, or none) is not acted on by the XSL-FO formatter to produce a number until after XSLT is done. Period. And note that <fo:page-number/> never actually _is_ a number, and in fact the formatter is not required to even generate a stringified page-number. This is what the XSL Recommendation allows or does not allow you to do. If you feel that there is a compelling use case for being able to do what you want to do, I'd suggest writing it up and submitting it to the [EMAIL PROTECTED] list. Hope this clears things up. Regards, Arved Sandstrom -----Original Message----- From: Wayne Elliott [mailto:[EMAIL PROTECTED] Sent: March 29, 2002 10:15 PM To: [EMAIL PROTECTED] Subject: Re: When a page is not a page Thanks for the tips guys. However <fo:page-number/> does not like being treated like a number, as it does not assign to a variable numerically. This was surprising. The following snippet <fo:block space-after="5mm" text-align="justify"> - <fo:page-number/> - <xsl:variable name="curpage"><fo:page-number/></xsl:variable> <xsl:value-of select="$curpage"/> - <xsl:value-of select="$curpage * 2"/> - <xsl:value-of select="floor($curpage) * 2"/> - <xsl:value-of select="column-number"/> - <xsl:value-of select="(2 * $curpage) + 1"/> - <xsl:number/> </fo:block> produces the following output On page (sheet) 1. - 1 - - NaN - NaN - - NaN - 1 On sheet 2. - 2 - - NaN - NaN - - NaN - 1 i.e On sheet n. - n - - NaN - NaN - - NaN - 1 Expected for sheet n was - n - n - 2n - 2n - 2n? - 2n+1- 1? Not sure why page-number behaves non-numerically. Perhaps it is something to do with the number formatting, e.g 1 = i = a etc. Perhaps there is a low level function that can extract the number part from fo:page-number? What I really need is a way of determining the number of the current column, based on column count and page number,but this also eludes me. WPE ----- Original Message ----- From: "Matthew L. Avizinis" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Saturday, March 30, 2002 9:42 AM Subject: RE: When a page is not a page > I believe this will not work as Wayne intends. > Page numbers will be generated sequentially starting with the > initial-page-number. > So, this might work better: > > <fo:page-sequence initial-page-number="0"> > > then > > <xsl:variable name="currentpage"><fo:page-number/></xsl:variable> > > then > > Then <xsl:value-of select="(2 * $currentpage) + 1"/> for the left page > number > and <xsl:value-of select="(2 * $currentpage) + 2"/> for the right page > number > hth, > > Matthew L. Avizinis <mailto:[EMAIL PROTECTED]> > Gleim Publications, Inc. > 4201 NW 95th Blvd. > Gainesville, FL 32606 > (352)-375-0772 ext. 101 > www.gleim.com <http://www.gleim.com> > > > > -----Original Message----- > > From: David Wood [mailto:[EMAIL PROTECTED] > > Sent: Friday, March 29, 2002 8:03 PM > > To: [EMAIL PROTECTED]; [EMAIL PROTECTED] > > Subject: Re: When a page is not a page > > > > > > Just speculating, but have you tried putting the page-number > > element inside > > a variable? > > > > i.e.: > > > > <xsl:variable name="currentpage"><fo:page-number/></xsl:variable> > > > > Then <xsl:value-of select="$currentpage * 2"/>, etc... > > > > I haven't tried this, but it's just what pops into my head... > > > > -David > > > > At 08:44 AM 3/30/2002 +0800, Wayne Elliott wrote: > > >A picture paints a thousand words... > > > > > > ----------------------------------- > > > | ............... : .............. | > > > | ............... : .............. | > > > | ............... : .............. | > > > | ............... : .............. | > > > | ............... : .............. | > > > | ............... : .............. | > > > | ............... : .............. | > > > | ............... : .............. | > > > | ............... : .............. | > > > | ............... : .............. | > > > | ............... : .............. | > > > | ............... : .............. | > > > | 1 : 2 | > > > ----------------------------------- > > > > > >The picture above represents a single sheet of A4 (Letter) > > >paper. However it also represents two pages in a book, and > > >if the page is folded down the dotted line it even starts to > > >look like a book. My problem is this; I need the page number > > >sequence as displayed in the picture - ie. 2 pages per page (sheet) > > > > > >I have no trouble laying out the text flow correctly using > > >stuff like > > > > > > <fo:simple-page-master master-name="content" > > > page-height="{$pageheight}mm" > > > page-width="{$pagewidth}mm" > > > margin-left="{$marginleft}mm" > > > margin-right="{$marginright}mm" > > > margin-top="{$margintop}mm" > > > margin-bottom="{$marginbottom}mm"> > > > > > > <fo:region-before extent="10mm"/> > > > > > > <fo:region-after extent="10mm"/> > > > > > > > > > <fo:region-body margin-top="10mm" > > > margin-bottom="10mm" > > > column-count="2" > > > column-gap="20mm"/> > > > > > > > > > > > > </fo:simple-page-master> > > > > > >and I defined a static region for the page number values > > >using the following > > > > > > <fo:static-content flow-name="xsl-region-after" > > > font-family="serif" > > > font-size="9pt"> > > > > > > <fo:table table-layout="fixed"> > > > <fo:table-column column-width="120mm"/> > > > <fo:table-column column-width="120mm"/> > > > <fo:table-body> > > > <fo:table-row> > > > <fo:table-cell> > > > <fo:block text-align="center"> > > > <fo:page-number/> <!-- 2x --> > > > </fo:block> > > > </fo:table-cell> > > > <fo:table-cell> > > > <fo:block text-align="center"> > > > <fo:page-number/> <!-- 2x + 1 --> > > > </fo:block> > > > </fo:table-cell> > > > </fo:table-row> > > > </fo:table-body> > > > </fo:table> > > > > > > </fo:static-content> > > > > > >but I do not know how to get the <fo:page-number/> to play > > >the game and give me more than one page number per page. > > > > > >Perhaps I am wrong in my approach and there is a way of > > >specifying two page regions per page/sheet, but I have > > >not found it yet. > > > > > >Any ideas? > > > > > >WPE > >
