Subject: [xsl] copying with substitution of text content (WAS: test for element or attribute AND superfluous namespace declarations) From: Georges Schmitz <georges.schmitz@xxxxxxxxx> Date: Wed, 11 Dec 2002 20:04:26 +0100 |
Michael Kay wrote: >>I'm using a copy template (recursively) that matches >>"@*|node()" and would like to decide what to do >>(<xsl:choose>) depending on the text content of the current >>node (nodes with arbitrary names, so no fix testing possible!). > > It would be better to have separate template rules for elements and > attributes, rather than using one rule that then does an <xsl:choose>.
OK, I have to admit that the original design of my stylesheet was rather lousy and that testing a node of being an attribute or element can be avoided easily in my case.
*1st INPUT* =========== <INSERT into="kennungen"> <FIELDS>kennung, path, lastarchiv, groesse, belegt, nutzung, voll, bereich, status, loeschbar, fkoerbe, dokutypkz, sektorsize, dokformat </FIELDS> <VALUES>:1,:2,:3,:4,:5,:6,:7,:8, :9,:10,:11,:12,:13,:14</VALUES> </INSERT>
(Hint: "<FIELDS>" is tokenized with a "exslt" function and binding number can be retrieved by a template called "pick.key-binding")
*2nd INPUT* =========== <Kennungen name="[kennung]" area="[bereich]" basketFlag="[fkoerbe]" docTypeMark="[dokutypkz]" docFormat="[dokformat]" erasable="[loeschbar]"> <Path>[path]</Path> <Archive>[lastarchiv]</Archive> <Status>[status]</Status> <CapacityInfo capacity="[groesse]" occupied="[belegt]" sectorSize="[sektorsize]" inUse="[nutzung]" complete="[voll]"/> </Kennungen>
*3 OUTPUT* this should be the result ========================== <Kennungen name=":1" area=":8" basketFlag=":11" docTypeMark=":12" docFormat=":14" erasable=":10"> <Path>:2</Path> <Archive>:3</Archive> <Status>:9</Status> <CapacityInfo capacity=":4" occupied=":5" sectorSize=":13" inUse=":6" complete=":7"/> </Kennungen>
With the following fragment of stylesheet, I get nearly a perfect result, except that my text nodes (of elements) still keep the old content
<xsl:template match="node()" mode="copy.template" > <xsl:copy> <xsl:for-each select="@*"> <xsl:attribute name="{name()}"> <xsl:variable name="attr.content"> <xsl:value-of select="substring(.,2,string-length(.)-2)"/> </xsl:variable> <xsl:call-template name="pick.key-binding"> <xsl:with-param name="key" select="$attr.content"/> </xsl:call-template> </xsl:attribute> </xsl:for-each> <xsl:variable name="element.content"> <xsl:value-of select="substring(text(),2,string-length(text())-2)"/> </xsl:variable> <xsl:call-template name="pick.key-binding"> <xsl:with-param name="key" select="$element.content"/> </xsl:call-template> <xsl:apply-templates mode="copy.template"/> </xsl:copy> </xsl:template>
With this approach, I no more need to test for attributes or elements, but there remains a problem with copying elements:
*NEW QUESTION* ==============
_WAS: superfluous namespace declarations with xsl:element_ Michael Kay wrote: >>I have to manipulate the text content of these nodes (for the ones, >>that have "[]" around themselves, I use a separate lookup table, >>replacing the actual [value] by the one I found). > > I don't understand the detail of what you want to do, but > > <xsl:copy> > ... some instructions here ... > </xsl:copy> > > is more-or-less equivalent to: > > <xsl:element name="{name()}"> > ... some instructions here ... > </xsl:element> > > The only differences are in the way that namespaces are handled, which > probably won't affect you.
David Carlisle wrote: > yes, you can still use xsl:copy. > >> I don't think this is possible with xsl:copy - or am I wrong? > > no - yes :-)
After David Carlisle and Michael Key encouraged me both to use <xsl:copy>, my question remains mostly the same: how can I avoid with <xsl:copy> that the old text content shows up in my elements (like <Path>:2[path]</Path>)? Is there some built-in template, that should be overwritten? Or have I to fallback on <xsl:element> in the end again.
Some last advice should help ;-) Georges
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