You don't need to build an array.
use experimental 'signatures';
sub length_at_position_between($s, $p, $n = "\n") {
my ($prev, $next);
while ($s =~ /$n/g) {
$prev = $next;
$next = pos $s;
last if $next > $p;
}
return $next - $prev;
}
print length_at_position_between
("test\nI want length of this line\n test", 12); # 27
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Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
-
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
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Want more info? How to link
or How to display code and escape characters
are good places to start.
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