Adds validation message for duplicate attributes #392
Merged
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This PR addresses issue #391. It modifies the
annotate
function in the parser so that it appends an error to the node'serrors
array when it detects a duplicate attribute. This does not actually change the rendering behavior of duplicate attributes—it still gives precedence to the last one added. I also added test cases to verify that this works as expected for multiple attributes in the same tag, multiple attributes in the same annotation, and multiple attributes across separate annotations on the same document node.Closes #391