protobuf-to-xsd

protobuf-to-xsd is XSLT transformation to convert FileDescriptorSet protocol buffer to XSD schema with requirements (see xsd-attributes.xslt):

• use XML attributes for simple types (like strings)
• correct handling of required and optional for attributes with use="required" and use="optional" XSD attributes
• correct handling of optional for elements with minOccurs="0" attribute
• specify elements in any order (using <xs:all /> instead of common <xs:sequential />)
• correct handling of repeated with maxOccurs="unbounded"

It is based on protogen utility written by Marc Gravell.

Usage

Try it out with simple command:

protogen.exe -i:descriptor.proto -o:descriptor.xsd -t:xsd-attributes -d

Set your protocol buffer message definition file instead of descriptor.proto.

License

xsd-attributes.xslt is distributes under MIT license, see license text inside file.

protogen is distributed under Apache License, Version 2.0.

The core Protocol Buffers technology is provided courtesy of Google.