Hello,
just a quick question. Short scan over a few regexp tutorials didn't lead me to an answer.
$a="aaaa";
@a=$a=~m/aa/g;
print join ( "-", @a );
outputs:
aa-aa
But with another pov one could find 3 occurences of 'aa' in 'aaaa' but I think this is a question of how matching is defined in perl.
Is there a way to manipulate the regexp above to match 3 times in the given string or do I have to write my own sub for this task?
Any suggestion to do this the "perl way"?
Thanks!
PS: A friend came up with the following, non-experimental :) suggestion
$regexp="a{2}";
$a="aaaa";
@a=$a=~m/(?=($regexp))./g;
print join ( "-", @a );
Greetings
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:
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, 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, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
| |
For: |
|
Use: |
| & | | & |
| < | | < |
| > | | > |
| [ | | [ |
| ] | | ] |
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.