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DTDs exist for the XML file formats supported by libaccounts-glib. Using these DTDs, it is possible to validate the XML data files for errors. This is especially useful during the build or testing process of applications which use libaccounts-glib, so that errors in data files can be caught early.
xmllint is part of libxml2 and
can be used to validate an XML document against a DTD. A sample command to
validate the hypothetical XML file coolprovider.xml is:
1 |
xmllint --noout --dtdvalid /usr/share/xml/accounts/schema/dtd/accounts-provider.dtd coolprovider.xml |
The --noout argument suppresses
printing of the XML document, and
--dtdvalid requests validation against
a DTD, given by the following argument. By default, the libaccounts-glib DTDs
are installed to
$(datadir)/xml/accounts/schema/dtd,
which usually expands to
/usr/share/xml/accounts/schema/dtd.