The output can’t be exactly the same across versions 5.8 to 5.14, because in 5.14.0 the (?^...) construct was added to signify default modifiers (see perl5140delta#Regular-Expressions). So, from 5.14 on, the output is:
14:13 >perl 1868_SoPW.pl
(?^msx: \A foo (?^:(?).*u\/ba$) )
But with that caveat, the behaviour is identical across my Strawberry Perl versions 5.12.3, 5.14.4, 5.18.2, 5.20.2, 5.22.0, 5.24.1, and 5.26.0.
My guess — and it’s no more than a guess — is that the documentation is wrong, and should read: Zero or more embedded pattern-match modifiers ...
Hope that helps,
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
Read Where should I post X? if you're not absolutely sure you're posting in the right place.
Please read these before you post! —
Posts may use any of the Perl Monks Approved HTML tags:
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.
| & || & |
| < || < |
| > || > |
| [ || [ |
| ] || ] ||