Benjamin Mako Hill 3d6bf34c8e add --content-sizes: decompose revision content into prose and structured characters ...

A single mwparserfromhell tree walk per revision emits two nullable
int64 columns. prose_chars counts rendered content outside any template
or tag: text nodes, wikilink labels (or targets when unlabeled),
external link labels, and heading titles. structured_chars counts the
same kinds of content inside template parameter values or tag contents,
with each character assigned by its nearest enclosing container. Markup
syntax, template and tag names, parameter names, attributes, bare URLs,
and HTML comments count in neither, so syntax overhead is derivable as
the total size minus the two columns.

Deleted revisions and parse timeouts yield nulls through the same
machinery as the other parser-based columns and do not change which
revisions are processed. Note that mwparserfromhell parses bold and
italic markup as tags, so emphasized text counts as structured.

Includes hand-computed fixture tests for the counting rules and an
end-to-end test on a dump with deleted revisions verifying nulls and
the invariant prose_chars + structured_chars <= revision size.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

2026-08-06 18:09:29 -07:00

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