def __init__(self, file):
"""Represents an XML under validation.
The XML can be retrieved given its filesystem path,
an URL, a file-object or an etree instance.
The XML is validated against the JATS Publishing tag set
and the SPS Style.
:param file: Path to the XML file, URL or etree.
"""
if isinstance(file, etree._ElementTree):
self.lxml = file
else:
self.lxml = etree.parse(file)
self.xmlschema = XMLSchema('SciELO-journalpublishing1.xsd')
self.schematron = XMLSchematron('sps.sch')
self.ppl = StyleCheckingPipeline()
