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Subject: [xsl] recursion troubles --Xalan, Saxon, msxml, xt -- From: Eric Vermetten <EVermetten@xxxxxxxxxxxxx> Date: Mon, 12 Feb 2001 21:28:14 -0000 |
Hello all, This maybe something more on the implementation side of XSLT, but it applies to several different XSLT products. I have the following 2 files: <!--++++____ t.xsl ____++++--> <?xml version="1.0"?> <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0"> <xsl:output method="xml"/> <xsl:template match="/"> <xsl:element name="wrap" > <xsl:apply-templates /> </xsl:element> </xsl:template> <xsl:template name="reverse"> <xsl:param name="index" /> <xsl:if test="$index != 0"> <xsl:call-template name="reverse"> <xsl:with-param name="index" select="$index - 1" /> </xsl:call-template> <xsl:value-of select="concat($index,'|')" /> </xsl:if> </xsl:template> <xsl:template match="text()"> <xsl:call-template name="reverse"> <xsl:with-param name="index" select="string-length(.)"/> </xsl:call-template> </xsl:template> </xsl:stylesheet> <!--++++____ t.xml ____++++--> <?xml version="1.0"?> <wrap><a>01234567890123456789</a></wrap> The number of characters in the content of the a element is put in the first column. Instant Saxon 6.0.2. 1-251 correct output 252 *no* output: the NT command line just silently reappears 253 java.lang.StackOverflowError 254 *no* output: the NT command line just silently reappears 255,256 java.lang.StackOverflowError --this is were I stopped Bug for 252 and 254? Xalan 1.2.2. 1-859 correct output 860 EXCEPTION_STACK_OVERFLOW exception 861 HotSpot Virtual Machine Error, EXCEPTION_STACK_OVERFLOW suggests making a bug report (which I did) 862 EXCEPTION_STACK_OVERFLOW exception, --this is where I stopped Bug for 861 msxml prod release -no evil empires here- 1 - 4000 correct output xt, xt.dll from XMetal 1.0 1 - 4000 corect output Why are those Java based processors having such a hard time with keeping their runtime stack in order? Why is there such a big difference between instant Saxon and Xalan? Both are java based. Shouldn't the runtime stack space only be limited by available memory? Can someone give me some explanation? Thanks in advance, Eric Vermetten XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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