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<program>

Every XMLang program has to be a valid XML document. The root element of the document is <program>, which contains the program's code.

This is the simplest XMLang program, which prints Hello, world! to the standard output:

<program>
    <print>Hello, world!</print>
</program>

The <program> element can contain any number of elements, which are executed in the order they appear in the document. It is a block - <return> can be used to stop its execution. The returned value of the <program> element is discarded.

The <program> element is only valid as the root element of the document. It cannot be used anywhere else in the document.