Check occurrence XSLT

Question

I want to check occurrence of certain text. Below is my XSLT:

<?xml version="1.0"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" version="1.0"
encoding="UTF-8" indent="yes"/>

<xsl:template match="/">

<!-- Notify PANTONE - If YES -->
<xsl:if test="contains(xmlreport/PageInfo/PageAttribute/PageColor,'PANTONE')">
<PantonePage><note>Yes</note></PantonePage>
</xsl:if>

<!-- Notify PANTONE - If NO -->
<xsl:if test="not(contains(xmlreport/PageInfo/PageAttribute/PageColor,'PANTONE'))">
<PantonePage><note>No</note></PantonePage>
</xsl:if>

</xsl:template>
</xsl:stylesheet>

My desire output should be either:

<pantone>Yes</pantone>

or

<pantone>No</pantone>

In the original XML, PANTONE might be PANTONE Red U, PANTONE Green U. When tested the above XSLT, the answer is always NO.

Below is my XML:

<?xml version="1.0" encoding="UTF-8"?>
<xmlreport>
  <PageInfo>
    <PageAttribute>
      <PageNum>1</PageNum>
      <TrimSize>
        <H>220 mm</H>
        <W>150 mm</W>
      </TrimSize>
      <MediaSize>
        <H>225 mm</H>
        <W>160 mm</W>
      </MediaSize>
      <PageColor>PANTONE Red U</PageColor>
    </PageAttribute>
    <PageAttribute>
      <PageNum>2</PageNum>
      <TrimSize>
        <H>220 mm</H>
        <W>150 mm</W>
      </TrimSize>
      <MediaSize>
        <H>225 mm</H>
        <W>160 mm</W>
      </MediaSize>
      <PageColor>Black</PageColor>
    </PageAttribute>
    <PageAttribute>
      <PageNum>3</PageNum>
      <TrimSize>
        <H>220 mm</H>
        <W>150 mm</W>
      </TrimSize>
      <MediaSize>
        <H>225 mm</H>
        <W>160 mm</W>
      </MediaSize>
      <PageColor>Cyan Magenta Yellow Black</PageColor>
    </PageAttribute>
  <PageInfo>
<xmlreport>

The PageAttribute will be repeated depending on number of pages.

Answer 1

The reason why your attempt doesn't work is that contains() is a string function and the expression:

contains(xmlreport/PageInfo/PageAttribute/PageColor,'PANTONE')"

tests only the string value of the first node of the set.

Try instead:

<xsl:template match="/">
    <PantonePage>
        <note>
            <xsl:choose>
                <xsl:when test="xmlreport/PageInfo/PageAttribute[contains(PageColor, 'PANTONE')]">Yes</xsl:when>
                <xsl:otherwise>No</xsl:otherwise>
            </xsl:choose>
        </note>
    </PantonePage>
</xsl:template>

Or - if you can accept a result of true/false instead of Yes/No - simply:

<xsl:template match="/">
    <PantonePage>
        <note>
            <xsl:value-of select="boolean(xmlreport/PageInfo/PageAttribute[contains(PageColor, 'PANTONE')])"/>
        </note>
    </PantonePage>
</xsl:template>

Answer 2

Edited stylesheet based on provided sample xml

I changed the approach now knowing the business rules more clearly that you expect multiple page attributes within a page info element. Michael's answer definitely accounts for a single value being returns if any of the pages are pantone and is completely correct. The difference in the approach below is that is provides a structure to identify which of the pages are Pantone in case others who stumble on these answers are looking for that business rule by page.

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
    <xsl:output method="xml" version="1.0" encoding="UTF-8" indent="yes"/>  
    <xsl:template match="/">
        <results>
            <xsl:apply-templates />
        </results>
    </xsl:template>
    <xsl:template match="xmlreport/PageInfo/PageAttribute">
        <Page>
            <PageNum><xsl:number/></PageNum>
            <Pantone>
                <xsl:choose>
                    <xsl:when test="contains(PageColor,'PANTONE')">Yes</xsl:when>
                    <xsl:otherwise>No</xsl:otherwise>
                </xsl:choose>
            </Pantone>
        </Page>
    </xsl:template>
</xsl:stylesheet>

Running this against your provided sample XML yields:

<results>
    <Page>
        <PageNum>1</PageNum>
        <Pantone>Yes</Pantone>
    </Page>
    <Page>
        <PageNum>2</PageNum>
        <Pantone>No</Pantone>
    </Page>
    <Page>
        <PageNum>3</PageNum>
        <Pantone>No</Pantone>
    </Page>
</results>