parsoid crate: "JSON error: data did not match any variant of untagged enum TransclusionPart"
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	Legoktm
	Feb 23 2023, 6:04 AM

Description

Trying to call code.filter_templates()? on https://en.wikipedia.org/api/rest_v1/page/html/Talk%3ASignaling_of_the_New_York_City_Subway gives:

Error: JSON error: data did not match any variant of untagged enum TransclusionPart at line 1 column 811

This is caused by the stray {{{2|}}} in <small>—''The preceding [[Wikipedia:Sign your posts on talk pages|unsigned]] comment was added by'' [[User:Rock nj|Rock nj]] ([[User talk:Rock nj|talk]] • [[Special:Contributions/Rock nj|contribs]]) {{{2|}}}.</small>

Documentation for this is actually at https://www.mediawiki.org/wiki/Specs/HTML/2.7.0#Parameter_Substitution_at_the_top-level which says "This section is only present for the sake of completeness. Unexpanded parameter markup is unlikely to be useful in top-level content, and if found, it is either a draft, syntax error, or a copy-paste without being fixed up." - obviously it's an error but we shouldn't be crashing on it.

Details

	Title	Reference	Author	Source Branch	Dest Branch
	Handle "templatearg" in a multi-part template	repos/mwbot-rs/mwbot!26	legoktm	templatearg	main

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Legoktm triaged this task as High priority.Feb 23 2023, 6:04 AM

Legoktm created this task.

Restricted Application added a subscriber: Aklapper. · View Herald TranscriptFeb 23 2023, 6:04 AM

The JSON structure is:

Object {
    "templatearg": Object {
        "i": Number(1),
        "params": Object {
            "1": Object {
                "wt": String(""),
            },
        },
        "target": Object {
            "wt": String("2"),
        },
    },
},

legoktm opened https://gitlab.wikimedia.org/repos/mwbot-rs/mwbot/-/merge_requests/26

Handle "templatearg" in a multi-part template

gerritbot added a project: Patch-For-Review.Feb 23 2023, 6:18 AM

I think this merits a backport to the 0.7.x stable series.

legoktm merged https://gitlab.wikimedia.org/repos/mwbot-rs/mwbot/-/merge_requests/26

Handle "templatearg" in a multi-part template

Merged and released in parsoid 0.7.6 and 0.8.0-alpha.5.

Maintenance_bot removed a project: Patch-For-Review.Feb 24 2023, 12:11 AM

parsoid crate: "JSON error: data did not match any variant of untagged enum TransclusionPart" Closed, ResolvedPublicActions

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parsoid crate: "JSON error: data did not match any variant of untagged enum TransclusionPart"
Closed, ResolvedPublic
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