Regex Crossword

Fill each cell so every row and column regex matches.

e9 · everything runtime

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Each row has a regex on the left; each column has a regex on top. Type uppercase letters so every row regex matches its row and every column regex matches its column. Clues turn green when matched.

Standard JavaScript regex, anchored to the full string. Useful syntax: [A-Z]+, alternation (AB|CD), negation [^XYZ]+, backreferences (.)\1.