Subject: Re: [xsl] key(), generate-id question From: "Endre Magyari" <endre@xxxxxxxxx> Date: Mon, 11 Nov 2002 20:59:22 +0200 |
Dear Americo, Thank you! One question: Do you rely on the strictly ascending order of the id values? I will try it now, Thanks! Endre ----- Original Message ----- From: "Américo Albuquerque" <aalbuquerque@xxxxxxxxxxxxxxxx> To: <xsl-list@xxxxxxxxxxxxxxxxxxxxxx> Sent: Monday, November 11, 2002 8:39 PM Subject: RE: [xsl] key(), generate-id question > Hi Endre. > > Ttry this. > > <xsl:template match="page"> > <xsl:copy> > <xsl:apply-templates select="element[@_id] | element[not(@_id)]"/> > </xsl:copy> > </xsl:template> > > <xsl:template match="element"> > <element> > <xsl:attribute name="xmi.id"> > <xsl:choose> > <xsl:when test="@_id"> > <xsl:value-of select="@_id"/> > </xsl:when> > <xsl:otherwise> > <xsl:call-template name="generate-id"/> > </xsl:otherwise> > </xsl:choose> > </xsl:attribute> > </element> > </xsl:template> > > <xsl:template name="generate-id"> > <xsl:variable name="last" > select="number(substring-after(preceding-sibling::element[@_id][1]/@_id, > 'id'))"/> > <xsl:variable name="this" > select="count(preceding-sibling::element[not(@_id)])+1"/> > <xsl:variable name="temp" select="concat('00000',$last+$this)"/> > <xsl:value-of > select="concat('id',substring($temp,string-length($temp)-5))"/> > </xsl:template> > > they work with this xml: > <page> > <element _id="id000001"/> > <element _id="id000002"/> > <element _id="id000003"/> > <element /> > <element /> > </page> > > And produce this: > <page> > <element _id="id000001"/> > <element _id="id000002"/> > <element _id="id000003"/> > <element _id="id000004"/> > <element _id="id000005"/> > </page> > > If the structure of your xml is diferent (probably is) then you can > change the 'element' in the templates by 'node()' > Hope that this helps you. > > > -----Original Message----- > From: owner-xsl-list@xxxxxxxxxxxxxxxxxxxxxx > [mailto:owner-xsl-list@xxxxxxxxxxxxxxxxxxxxxx] On Behalf Of Endre > Magyari > Sent: Monday, November 11, 2002 7:30 AM > To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx > Subject: Re: [xsl] key(), generate-id question > > > > You can't control how generate-id() works, but you could do something > > like write a named template that will generate the ID. For example, > > you could count the number of preceding elements that don't have an > > _ID attribute and then add that value to the numeric part of the > > nearest preceding element that *does* have an _ID attribute. All > > doable with normal XSLT functions. > > > Based on this, as far as now I could do an enumeration of all the _id > values (as numbers) from the document, but I have no idea how to select > the one with the maximal value out of them. And Also, I have no idea > how/where to store the new id values being assigned. The problem is that > I've no experience with declarative languages. I can not get used to the > idea that a variable can not vary. What I would do is that (if > curr_value > max) max = curr_value. But how to do this here? Any help is > greatly appreciated. > > <!-- ID Generator--> > <xsl:template name="idgen"> > <xsl:for-each select="node()"> > <xsl:for-each select="@_id"> > <xsl:number value="substring-after(current(),'id')"/>; > </xsl:for-each> > </xsl:for-each> > </xsl:template> > > Thank you, > Endre > > > XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list > > > > XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list > XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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