Bug #3229: Saxon 9.7 fails to compile xsl:output/@json-node-output-method - Saxon - Saxonica Developer Community

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Bug #3229

closed

Saxon 9.7 fails to compile xsl:output/@json-node-output-method

Added by Nick Nunes over 7 years ago. Updated over 7 years ago.

Status:

Closed

Priority:

Low

Assignee:

Michael Kay

Category:

XSLT conformance

Sprint/Milestone:

Start date:

2017-05-19

Due date:

% Done:

100%

Estimated time:

Legacy ID:

Applies to branch:

9.7

Fix Committed on Branch:

9.7, trunk

Fixed in Maintenance Release:

9.7.0.19

Platforms:

Description

The attached stylesheet demonstrates this problem. The full error message is:

Static error in xsl:output/@json-node-output-method on line 7 column 60 of json-node-output-method.xsl:

XTSE0090: Attribute @json-node-output-method is not allowed on element xsl:output

Errors were reported during stylesheet compilation

From my read of the specification even if @json-node-output-method is not supported it should only be ignored, not rejected as invalid:

Unless the processor implements the XPath 3.1 Feature, the method values json and adaptive must be rejected as invalid, and the attributes allow-duplicate-names and json-node-output-method must be ignored.

https://www.w3.org/TR/xslt-30/#element-output

Files

json-node-output-method.xsl (457 Bytes) json-node-output-method.xsl

Nick Nunes, 2017-05-19 23:12

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Updated by Nick Nunes over 7 years ago

File json-node-output-method.xsl json-node-output-method.xsl added

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Updated by Michael Kay over 7 years ago

Category set to XSLT conformance
Status changed from New to In Progress
Assignee set to Michael Kay

My first reaction is that I'm surprised this should survive testing. I can't find any XSLT 3.0 test case that uses xsl:output/@json-node-output-method, and yet (a) it's defined in the schema-for-xslt30, and (b) we have a test that all element/attribute combinations defined in the schema actually appear in some test stylesheet document. So there's a problem with the way we're testing completeness of the test suite...

You're right that this attribute (together with the other late addition for JSON, allow-duplicate-names) isn't recognized on xsl:output in 9.7.

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Updated by Michael Kay over 7 years ago

In fact the test suite does contain a test output-0702 that uses xsl:output/@json-node-output-method, but the test was only added on 2016-12-16, and we generally test Saxon 9.7 against a snapshot of the test suite taken when Saxon 9.7 was first released. Saxon 9.7 is indeed failing this test.

I think that the 9.7 serializer does support this property so it should just be a question of enabling it on xsl:output.

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Updated by Michael Kay over 7 years ago

Status changed from In Progress to Resolved
Applies to branch 9.7, 9.8 added
Fix Committed on Branch 9.7, 9.8 added

Fixed XSLOutput so it now recognizes and validates json-node-output-method.

To make JSON serialization work with various s9api API combinations, I also amended the Xslt30Transformer to ensure that controller.buildTree() is set to false when the output method is JSON or Adaptive.

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