[XSL-LIST Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: What is the Core of XSLT?
On Sat, Mar 29, 2014 at 5:35 PM, Abel Braaksma (Exselt) <abel@xxxxxxxxxx> wrote: > I don't think (but would be happy to be proven wrong) that this can be > implemented in XSLT 1.0 without xsl:choose or xsl:if. However, in XSLT > 2.0 you can do this (other solutions possible): > > <xsl:template name="calculator"> > <xsl:variable name="operator-node"> > <operator><xsl:value-of select="$operator" /></operator> > </xsl:variable> > <xsl:apply-templates select="$operator-node/operator" /> > </xsl:template> > > <xsl:template match="operator[text() = '*']"> > <xsl:value-of select="$left * $right" /> > </xsl:template> > > <xsl:template match="operator[text() = '+']"> > <xsl:value-of select="$left + $right" /> > </xsl:template> > > <xsl:template match="operator"> > <xsl:text>Oops! Wrong operator!</xsl:text> > </xsl:template> > I am glad that you will be happy: :) Do you see any <xsl:choose> or <xsl:if> in the code below? <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> <xsl:output method="text"/> <xsl:param name="left" select="3"/> <xsl:param name="right" select="2"/> <xsl:param name="operator" select="'*'" /> <xsl:template match="/"> <xsl:call-template name="calculator2"/> </xsl:template> <xsl:template name="calculator2"> <xsl:apply-templates select="self::node()[$operator = '*']" mode="mult"/> <xsl:apply-templates select="self::node()[$operator = '+']" mode="add"/> <xsl:apply-templates select= "self::node()[not($operator = '+') and not($operator = '*') ]" mode="error"/> </xsl:template> <xsl:template match="/" mode="add"> <xsl:value-of select="$left + $right"/> </xsl:template> <xsl:template match="/" mode="mult"> <xsl:value-of select="$left * $right"/> </xsl:template> <xsl:template match="/" mode="error">Oops! Wrong operator!</xsl:template> </xsl:stylesheet> When this transformation is applied on any XML document, the wanted, correct result is produced: 6 -- Cheers, Dimitre Novatchev --------------------------------------- Truly great madness cannot be achieved without significant intelligence. --------------------------------------- To invent, you need a good imagination and a pile of junk ------------------------------------- Never fight an inanimate object ------------------------------------- To avoid situations in which you might make mistakes may be the biggest mistake of all ------------------------------------ Quality means doing it right when no one is looking. ------------------------------------- You've achieved success in your field when you don't know whether what you're doing is work or play ------------------------------------- To achieve the impossible dream, try going to sleep. ------------------------------------- Facts do not cease to exist because they are ignored. ------------------------------------- Typing monkeys will write all Shakespeare's works in 200yrs.Will they write all patents, too? :) ------------------------------------- I finally figured out the only reason to be alive is to enjoy it.
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