An XML Patch Operations Framework Utilizing XPath Selectors Jari - PowerPoint PPT Presentation

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An XML Patch Operations Framework Utilizing XPath Selectors Jari Urpalainen IETF63 Paris Changes I-D name change: XCAP -> XML Supports a full set of XPath 1.0 datamodel nodes (except the root node) Deterministic model to handle

An XML Patch Operations Framework Utilizing XPath Selectors Jari Urpalainen IETF63 Paris
Changes ● I-D name change: XCAP -> XML ● Supports a full set of XPath 1.0 datamodel nodes (except the root node) ● Deterministic model to handle whitespace text nodes in <add> and <remove> ● ABNF replaced with the W3C Schema patterns (regular expressions) ● Selection of elements with attached default namespace simplified
Issues ● Clarify namespace prefix selections ● Add id(“xxx”) as an allowable location path ● Clarify CDATA handling ● Will be discussed on the mailing list
Conclusions ● Proof-of-concept implementation will be available in Sourceforge (libxmlpatch) – LGPL license – built on top of libxml2 library – ~500 lines of C code – CDATA not yet handled correctly; index numbers may be wrong or CDATA content format may change ● Ready for a WG item?

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