in reply to Mysterious "syntax error"
Because map can take either a block or an expression, and open curly can start a block or an expression (start of an anonymous hash), there's some "guessing" code to deal with the ambiguity, and sometimes it guesses wrong.
You can disambiguate these with:
This is documented in perldata I believe. Or perlref.map {; ... definitely a block ... } ... map +{ ... definitely an anonhash ... }, ...
-- Randal L. Schwartz, Perl hacker
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