Any (list|of|fixed|words), no matter how long or whether sorted or not will be pre-compiled into a trie.

I remember an upper limit for trie optimization, are you saying it was removed?

Re^6: Efficient matching with accompanying data (trie limit 15000 ) ... http://perldoc.perl.org/perlvar.html#${^RE_TRIE_MAXBUF}

In reply to Re^4: Warning about playing with matches by Anonymous Monk
in thread Warning about playing with matches by ExReg

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