I want to perform a series of operations on elements that matched the name "A" or "B". I'm thinking of something like this below, but it doesn't work.
<xsl:template match= " 'A' or 'B'" >
<!-- whatever I want to do here -->
</xsl:template>
Couldn't find the appropriate XSLT language reference for it. Please help! Thanks!!
The below information was gleaned from: http://www.cafeconleche.org/books/bible2/chapters/ch17.html#d1e2090
I will paraphrase, please search for the text "Using the or operator |" in that document.
The syntax is:
<xsl:template match="A|B">
<!-- Do your stuff> -->
</xsl:template>
Generally A | B is the right way to do this. But the pipe character is basically a union of two complete XPath expressions. It can be annoying to use it in a case like this:
/red/yellow/blue/green/gold | red/orange/blue/green/gold
since you're repeating the entirety of the expression except for the one small piece of it's that changing.
In cases like this, it often makes sense to use a predicate and the name() function instead:
/red/*[name() = 'yellow' or name()='orange']/blue/green/gold
This technique gives you access to a much broader range of logical operations. It's also (conceivably) faster, as the XPath navigator only has to traverse the nodes it's testing once.