Both exceptions, the special treatment of //
by split, are documented in split
. Both may deserve to be mentioned in the tutorial quickly for the profit of the unaware. The last remark by ysth
about the non-equivalence of /^(?#)/
and /^ /x
for split purposes is a subtle thing. More subtle if you compare to the fact that / /x
, / # /x
or even / (?#)/x
have the same treatment as //
when passed to this function. Looks like a case to be fixed either in the docs or in the code of the Perl interpreter itself (if not barred by compatibility issues).
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