for establishing validation stages or to provide different validators for different "validation audiences". Since version 2.0, lxml.etree features pre-ISO-Schematron support, using the class lxml.etree. In the figure below, the locations where white space that’s part of the XML syntax may appear are marked with a ( Now when the XML specification says any white space, they don’t really mean it. The standards leave some aspects of white space handling up to the implementers, or at least that’s what the implementers would have us believe.I suspect some implementers choose to ignore parts of the standards they don’t like or can’t accommodate easily in their toolsets.Schematron automatically converts these parameters to stylesheet parameters so you need not worry to set string parameters using quotes or to use XSLT.strparam().If you ever need to pass an XPath as argument to the XSLT stylesheet you can pass in an etree.This is provided by the lxml.isoschematron package that implements the Schematron class, with an API compatible to the other validators'.
XML은 SGML의 단순화된 부분집합으로, 다른 많은 종류의 데이터를 기술하는 데 사용할 수 있다.
XML allows for unbounded white space wherever white space is permitted in the XML syntax.
This is useful for pretty printing an XML document.
Again, no validation is performed unless explicitly requested.
XML schema is supported in a similar way, but requires an explicit schema to be provided: As described above, the parser support for DTDs depends on internal or external subsets of the XML file.