Validating xml file against xsd

Oxygen XML Editor is the premier text editor for XML geeks, and an indispensable tool for O'Reilly's Production group.My team uses Oxygen XML Editor for everything from simple XML editing to Schema validation and XSLT transformations.DTD-validating parsers are most common, but some support XML Schema or RELAX NG as well.Validation of an instance document against a schema can be regarded as a conceptually separate operation from XML parsing.There are historic and current XML schema languages: The main ones (see also the ISO 19757's endorsed languages) are described below.Though there are a number of schema languages available, the primary three languages are Document Type Definitions, W3C XML Schema, and RELAX NG.

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This means which elements can reside in which other elements, which attributes are and are not legal to have on a particular element, and so forth.

A schema is analogous to a grammar for a language; a schema defines what the vocabulary for the language may be and what a valid "sentence" is.

The process of checking to see if a XML document conforms to a schema is called validation, which is separate from XML's core concept of syntactic well-formedness.

All XML documents must be well-formed, but it is not required that a document be valid unless the XML parser is "validating", in which case the document is also checked for conformance with its associated schema.

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