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![]() Only split doctest lang strings on `,`, ` `, and `\t`. Additionally, to preserve backwards compatibility with pandoc-style langstrings, strip a surrounding `{}`, and remove leading `.`s from each token. Prior to this change, doctest lang strings were split on all non-alphanumeric characters except `-` or `_`, which limited future extensions to doctest lang string tokens, for example using `=` for key-value tokens. This is a breaking change, although it is not expected to be disruptive, because lang strings using separators other than `,` and ` ` are not very common |
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