Question

Given this XML data:

 <root>   <item>apple</item>   <item>orange</item>   <item>banana</item> </root> 

I can use this XSLT markup:

 ... <xsl:for-each select='root/item'>   <xsl:value-of select='.'/>, </xsl:for-each> ... 

to get this result:

apple, orange, banana,

but how do I produce a list where the last comma is not present? I assume it can be done doing something along the lines of:

 ... <xsl:for-each select='root/item'>   <xsl:value-of select='.'/>   <xsl:if test='...'>,</xsl:if> </xsl:for-each> ... 

but what should the test expression be?

I need some way to figure out how long the list is and where I currently am in the list, or, alternatively, if I am currently processing the last element in the list (which means I don’t care how long it is or what the current position is).

Answer 1

Take a look at the position(), count() and last() functions; e.g., test='position() < last()'.