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RE: ACTION-512 - Research getting line and column information from XPath

From: Miguel Garcia <miguel.garcia@fundacionctic.org>
Date: Mon, 18 Jun 2007 17:28:25 +0200
Message-ID: <09700B613C4DD84FA9F2FEA52188281902247D88@ayalga.fundacionctic.org>
To: <public-mobileok-checker@w3.org>
Cc: Roland Gülle <roland@7val.com>

Hello,

I have just managed to work Xalan lineNumber function. I view an example of using it at apache mailing-list [1] and they use the . (dot) operator instead of node() as parameter of lineNumber function. I just made a basic example and it worked fine.

CommandLine:
java -jar xalan.jar org.apache.xalan.xslt.Process -L -IN temp/source.xml -XSL temp/xslt.xsl

Xsl:
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="2.0"
		xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
		xmlns:info="org.apache.xalan.lib.NodeInfo"
		extension-element-prefixes="info">

		<xsl:template match="/">
			<xsl:apply-templates/>  
		</xsl:template>
		
		<xsl:template match="//two_one">
			<xsl:value-of select="name()"/>
			<xsl:text> line: </xsl:text>
			<xsl:value-of select="info:lineNumber(.)"/>		
		</xsl:template>
</xsl:stylesheet>

Xml:
<root>
	<one />
	<two>
		<two_one>Texto</two_one>
	</two>
</root>

Miguel

[1] http://mail-archives.apache.org/mod_mbox/xml-xalan-cvs/200202.mbox/%3C20020212183816.82831.qmail@icarus.apache.org%3E

>>-----Mensaje original-----
>>De: public-mobileok-checker-request@w3.org [mailto:public-mobileok-
>>checker-request@w3.org] En nombre de Roland Gülle
>>Enviado el: lunes, 18 de junio de 2007 9:42
>>Para: public-mobileok-checker@w3.org
>>Asunto: ACTION-512 - Research getting line and column information from
>>XPath
>>
>>
>>It seems that there are no XPath column/line Information functions.
>>
>>But with Xalan, it seems that we can use the source location feature
>>[1] that provide the SourceLocator.
>>With the SourceLocator, we can use the NodeInfo lineNumber Xalan
>>function [2].
>>I try to use this direct in the XSLT at the command line, but I get
>>always the error:
>>'There is more than one method matching the function call
>>info:lineNumber, and there is insufficient type information to
>>determine which one should be used'
>>Add the context or nodeList XPath, won't help, so it seems that there
>>are problems with running this on the command-line.
>>
>>Here my test XSLT:
>>-----------------
>><?xml version="1.0" encoding="UTF-8"?>
>><xsl:stylesheet version="2.0"
>>		xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
>>                 xmlns:info="org.apache.xalan.lib.NodeInfo"
>>		extension-element-prefixes="info">
>>
>>		<xsl:template match="/">
>>			<xsl:value-of select="info:lineNumber(node())"/>
>>		</xsl:template>
>></xsl:stylesheet>
>>
>>It is only a command line problem?
>>(I never used Xalan functions in XSLT before, but I noticed in the
>>first CachingTest.xsl that Sean has used this - could someone help me
>>at this problem?)
>>
>>Another resolution could be Expat and GetCurrentColumnNumber /
>>GetCurrentLineNumber, but using the Xalan Source Locator seems to be
>>the preferred way.
>>
>>  Roland
>>
>>
>>[1] http://xml.apache.org/xalan-j/features.html#source_location
>>[2] http://xml.apache.org/xalan-j/apidocs/org/apache/xalan/lib/
>>NodeInfo.html#lineNumber(org.apache.xalan.extensions.ExpressionContext)
Received on Monday, 18 June 2007 15:28:36 GMT

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