Function calls

In USoft Blend, in contexts where an XPath expression is legal, you can use parenthesised expressions that call one of the following:

From a syntax point of view, a call to a USoft Blend function may be recognised by the presence of an explicit namespace prefix as, for example, "dates:" in:

By contrast, a call to an XPath function may be recognised by the absence of an explicit namespace prefix as, for example, in:

When USoft Blend directives are executed, they call underlying programmed functions that access the source code that implements USoft Blend.

You can see how this is done by inspecting the XSLT stylesheet :

usoft-install-dir\xsl\Util\Batch.1.0.xsl

Alternatively, you can get a full list of USoft Blend functions by using the "functions" Blend command line option:

> usoft-bindir\ublendit.exe functions

The most important USoft Blend functions are documented in the Functions section.

In a USoft Blend context, in an XPath expression content, all the 27 XPath 1.0 functions are implicitly available:

Node set functions	String functions	Boolean functions	Number functions
count()	concat()	boolean()	ceiling()
id()	contains()	false()	floor()
last()	normalize-space()	lang()	number()
local-name()	starts-with()	not()	round()
name()	string()	true()	sum()
namespace-uri()	string-length()
position()	substring()
	substring-after()
	substring-before()
	translate()