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Re: Combining multiple =~ s/

by rsFalse (Chaplain)
on Mar 11, 2021 at 08:28 UTC ( #11129442=note: print w/replies, xml ) Need Help??


in reply to Combining multiple =~ s/

One more way.
#!/usr/bin/perl use warnings; use strict; my %huge_trans = ( zero => 0, one => 1, ones => 11, two => 2, three => 3, # ... million => 1_000_000, ); my $rx_word = qr/\b\w+\b/i; print <> =~ s!($rx_word)! $huge_trans{lc $1} // $1 !ger;
Imagine you have huge dictionary for translation. Then this way should work faster.
Previously suggested way with alternations should also work fast, because Trie-optimization should kick-in.

Upd. BTW, it is not about "combining regex'es", it's only a use of a hash. All words, i.e. hash keys, must be simple words, not regexes.

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