In order for m/<some stuff>/g to return multiple matches, you need to either evaluate it in a list context or repetitively evaluate the same match in scalar context.

The scalar match can be done with with a while loop, as shown in other replies. Note that the same string must be matched, so if you used 

sub foo { $mystring }

while (foo =~ m/blah../g) {

[download]

, you would get the first match over and over, since each time you are matching on a different copy of the string. The list context match can be done with foreach for iteration, e.g.: 

$/=undef;
for (<> =~ /\((.*?)\)/g) { print $1, "\n" }

[download]

while _repeatedly_ evaluates its condition in scalar context, foreach repeatedly executes its body for values of the list obtained by evaluating the argument _once_ in list context. Btw, this means you do not want to use foreach if your list is way too big for your memory...

In reply to Re: variables in global match in regex by GreyGlass
in thread variables in global match in regex by BrassMonkey

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • 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:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.