The substring-before() function
Smartsite 7.4 - ...
The substring-before() XPath 2.0 function returns the part of arg1 that precedes the first occurrence of arg2.
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string fn:substring-before(arg1, string arg2) |
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Parameters:
- arg1: a node reference or string literal.
- string arg2.
Example
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<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:xf="http://www.w3.org/2002/xforms"
xmlns:fn="http://www.w3.org/2005/xpath-functions">
<head>
<title>Example</title>
<xf:model>
<xf:instance>
<data xmlns="">
<alphabet>abcdefghi</alphabet>
</data>
</xf:instance>
</xf:model>
</head>
<body>
<xf:group>
<xf:output value="fn:substring-before(alphabet, 'def')" />
<xf:output value="fn:substring-before('abcdef', 'def')" />
</xf:group>
</body>
</html>
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The result will be:
abc
abc
abc
Namespace
This function is available within the XPath 2.0 namespace (http://www.w3.org/2005/xpath-functions).