using fn: functions in xsl [closed]

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How is this us开发者_开发百科ed?

usiing the example of fn:replace(string,pattern,replace)

is ist used as

  <xsl:value-of select="raplce(Bella Italia', 'l', '*')"/>

or

  <xsl:value-of select="fn:raplce(Bella Italia', 'l', '*')"/>

Any help would be much appreciated.

Regards

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From the XSLT 2.0 spec:

The default function namespace is the standard function namespace, defined in [Functions and Operators]. This means that it is not necessary to declare this namespace in the stylesheet, nor is it necessary to use the prefix fn (or any other prefix) in calls to the core functions.

However if you do use the fn prefix, then you must declare it as mapped to the standard function namespace, e.g.

xmlns:fn="http://www.w3.org/2005/xpath-functions"