[ http://issues.apache.org/jira/browse/XALANJ-2004?page=all ]
Brian Minchau updated XALANJ-2004:
----------------------------------
Fix Version: 2.7
> Seems a Xalan bug
> -----------------
>
> Key: XALANJ-2004
> URL: http://issues.apache.org/jira/browse/XALANJ-2004
> Project: XalanJ2
> Type: Bug
> Components: Xalan
> Versions: 2.6
> Environment: Windows 2000 Prof, Xalan-J 2.6.0, JDK 1.4(the bundled Xalan
> disabled)
> Reporter: Mukul Gandhi
> Fix For: 2.7
>
> Hello,
> I seem to have discovered a Xalan bug(Xalan-J 2.6.0)! I found it while
> solving a problem posted at a public newsgroup..
> The problem posted was -
> Subject: Grouping by two or any number
> --------------------------------------
> I have the following xml
> <Parent>
> <node>a</node>
> <node>s</node>
> <node>d</node>
> <node>f</node>
> <node>g</node>
> <node>h</node>
> <node>j</node>
> <node>k</node>
> <node>l</node>
> </Parent>
> Need to print in following format (into groups of two; or could be any other
> group-size)
> group 1 - a,s
> group 2 - d,f
> group 3 - g,h
> group 4 - j,k
> group 5 - l
> To solve this problem, I wrote the following stylesheet -
> <?xml version="1.0"?>
> <xsl:stylesheet
> xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
> version="1.0">
>
> <xsl:output method="text" />
> <xsl:param name="group-size" select="3" />
>
> <xsl:template match="/Parent">
> <!-- calculate the no of "node" elements, which are left as a fraction;
> which are to be displayed in the last group -->
> <xsl:variable name="n" select="count(node) -
> (floor((count(node) div $group-size)) * $group-size)"
> />
>
> <xsl:for-each select="node">
> <!-- determine group boundary; this if test stops at the last "node"
> element of the group -->
> <xsl:if test="(position() mod $group-size) = 0">
> group <xsl:value-of select="floor(position()
> div $group-size)" /><xsl:text> - </xsl:text>
> <!-- display group members -->
> <xsl:for-each select=". |
> preceding-sibling::node[position() <= ($group-size
> - 1)]">
> <xsl:value-of select="." /><xsl:if
> test="(position() mod $group-size) !=
> 0"><xsl:text>,</xsl:text></xsl:if>
> </xsl:for-each>
> <xsl:text>
</xsl:text>
> </xsl:if>
> <!-- this if test processes the last group; whose number of group
> members will be less than the group-size -->
> <xsl:if test="((position() = last()) and
> ((position() mod $group-size) != 0))">
> group <xsl:value-of select="floor(position()
> div $group-size) + 1" /><xsl:text> - </xsl:text>
> <xsl:for-each select=". |
> preceding-sibling::node[position() < $n]">
> <xsl:value-of select="." /><xsl:if
> test="position() !=
> last()"><xsl:text>,</xsl:text></xsl:if>
> </xsl:for-each>
> <xsl:text>
</xsl:text>
> </xsl:if>
> </xsl:for-each>
> </xsl:template>
>
> </xsl:stylesheet>
> I invoke Xalan like this:
> java org.apache.xalan.xslt.Process -in file.xml -xsl
> file.xsl -PARAM group-size 2
> The output is fine for -PARAM group-size values of
> 1,2,3 & 4. But for -PARAM group-size values of 5 and
> above, the ouput is not coming as expected. For e.g.,
> for -PARAM group-size 5, the output received is -
> group 1 - a,s,d,f,g
> group 2 - h,
> I tested the same XSL with Saxon 8 and MSXSL 4,
> and both produce correct result for all the cases(i.e. for any group-size).
> Both Saxon and MSXSL produce the following output for
> group-size=5 -
> group 1 - a,s,d,f,g
> group 2 - h,j,k,l
> Could it be a Xalan bug?
> Regards,
> Mukul
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