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    lang


    The lang function determines whether the context node matches the given language and returns boolean true or false.

    Syntax

    lang( string )
    

    Arguments

    string
    The language code or localization (language and country) code to be matched.

    Returns

    true if the context node matches the given languages. Otherwise, false.

    Notes

    • A node's language is determined by its xml:lang attribute. If the current node does not have an xml:lang attribute, then the value of the xml:lang attribute of the nearest ancestor that has an xml:lang attribute will determine the current node's language. If the language cannot be determined (no ancestor has an xml:lang attribute), this function will return false.
    • If the given string does not specify a country code, this function will match nodes of that language with any country code. The converse is not true.

    Given this fragment of XML:

    <p xml:lang="en">I went up a floor.</p>
    <p xml:lang="en-GB">I took the lift.</p>
    <p xml:lang="en-US">I rode the elevator.</p>

    And this part of an XSL template:

    <xsl:value-of select="count(//p[lang('en')])" />
    <xsl:value-of select="count(//p[lang('en-GB')])" /> 
    <xsl:value-of select="count(//p[lang('en-US')])" />
    <xsl:value-of select="count(//p[lang('de')])" />
    

    The output might be:

    3
    1
    1
    0
    

    Defined

    XPath 1.0 4.3

    Gecko support

    Supported.

    Document Tags and Contributors

    Contributors to this page: Sheppy, Fredchat, Jonnyq, Shoot, Mgjbot, Ptak82
    Last updated by: Sheppy,