Andreas Kling 9d6f00d918 LibJS: Behave like major engines when substituting missing capture group ...

When a substitution refers to a 2-digit capture group that doesn't exist
we need to check if the first digit refers to an existing capture group.
In other words, '$10' should be treated as capture group #1, followed by
the literal '0' if 1 is a valid capture group but 10 is not.

This makes the Dromaeo "dom-query" subtest run to completion.

2023-08-29 10:33:48 +02:00

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