Xquery append text to tag values depending of the element type

问题

I need to get the values of some elements and then some text needs to be added depending on the element, for example:

<elementType>a</elementType> 
<otherElementType>b</otherElementType> 
<elementType>c</elementType> 
<elementType>d</elementType>

$doc//*[self::elementType or self::otherElementType]/string()

"a"
"b"
"c"
"d"

this returns the values but I don´t know how to get the values like this:

"a is an elementType"
"b is an otherElementType"
"c is an elementType"
"d is an elementType"

回答1:

Use:

//*[self::elementType or self::otherElementType]
              /concat(., ' is a ', name(), '&#xA;')

When this expression is evaluated against the following XML document (the provided malformed fragment -- corrected):

<t>
    <elementType>a</elementType>
    <otherElementType>b</otherElementType>
    <elementType>c</elementType>
    <elementType>d</elementType>
</t>

The wanted, correct result is produced:

a is a elementType
 b is a otherElementType
 c is a elementType
 d is a elementType

回答2:

You might like to look at XSLT with its rule-based processing, which seems to match the way you are thinking about your requirements:

Use

<xsl:apply-templates select="*"/>

to process all the elements, and then separate template rules to say how each kind of element is to be processed:

<xsl:template match="elementType">
  do one thing
</xsl:template>

<xsl:template match="otherElementType">
  do a different thing
</xsl:template>

来源：https://stackoverflow.com/questions/12241824/xquery-append-text-to-tag-values-depending-of-the-element-type

标签

xml

xquery