Benno Schulenberg 0e1d45dc36 tweaks: fold some regexes together, and trim or improve some comments
Also, trim some whitespace and group one rule better.

Also, fix a stray closing parenthesis in the JSON syntax,
and add the missing slash to the possible escaped characters.
(Reference: https://www.json.org/json-en.html.)

Also, improve the ending of multiline strings in the Rust syntax.
2021-10-27 11:25:45 +02:00
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