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.. _iri-section:
IRI
=====
`IRIs <http://www.w3.org/TR/SVG/linking.html#IRIandURI>`_, including ones that are set with
`FuncIRI <http://www.w3.org/TR/SVG/types.html#DataTypeFuncIRI>`_
syntax, are passed to the user code the same way as other :ref:`strings <passing-string>` in SVG++.
The only setting in *IRI Policy* configures whether to distinguish
local references to document fragment (IRIs prefixed with "#") from non-local IRI references.
If ``policy::iri::distinguish_local`` used (as by default), then local reference to document fragment
is passed as pair of parameters: {``tag::iri_fragment()``, *<fragment string>*}.
If ``policy::iri::raw`` is set, then any IRI is passed as single :ref:`string <passing-string>`.
:ref:`Named class template parameter <named-params>` for *IRI Policy* is ``iri_policy``.
Example of using default *IRI Policy* (``src/samples/sample_iri.cpp``):
.. literalinclude:: ../../src/samples/sample_iri.cpp
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