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$ perl -E 'say "|$_|" for split /-| /, "A B-C"' |A| |B| |C|
$ perl -E 'say "|$_|" for split /(-| )/, "A B-C"' |A| ... |B| |-| |C|
$ perl -E 'say "|$_|" for split /(-|)/, "A B-C"' |A| ... |B| |-| |C|
$ perl -E 'say "|$_|" for split / /, "A B-C"' |A| ... $ perl -E 'say "|$_|" for split " ", "A B-C"' |A| |B-C|
$ perl -E 'say "|$_|" for split //, "A B-C"' |A| ... |B| |-| |C|
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