counting matches in string w/o s/// ?

[Guest_imported]

Hi, everyone<br>I want to count the number of occurrences my pattern matches in a given string without using s///.&nbsp;&nbsp;I don't need to substitute or translate.&nbsp;&nbsp;I just need to count the matches.<br><br>For example:<br><br>$someStr = &quot;hihihi&quot;;<br>$someStr =~ /hi/;&nbsp;&nbsp;# evaluates to true not 3<br>$someStr =~ s/hi/hi/g;&nbsp;&nbsp;# evaluates to 3 but unnecessary substitution and s/// operator will not work with read only values<br><br>any suggestions how to do this efficiently with read only values, too?<br><br>Thanks,<br>Keith

 

[tanderso]

$someStr = &quot;hihihi&quot;;<br>$count = $someStr;<br>$count = int($count =~ s/hi//g <p> Sincerely,<br><a href=mailto: > </a><br><a href=

http://www.oac-design.com>Tom

Anderson</a><br>CEO, Order amid Chaos, Inc.<br>

http://www.oac-design.com

 

[Guest_imported]

Yeah, but you still use s/// ...<br>in fact, you could just do<br><br>$someStr = &quot;hihihi&quot;;<br>$count = ($someStr =~ s/hi/hi/g);<br><br>or <br><br>$someStr = &quot;hihihi&quot;;<br>$count = ($someStr =~ s/(hi)/$1/g);<br><br>but both still use s///;<br><br>I don't think there's an easier way, not that the ones above are hard.&nbsp;&nbsp;If only m// returned the number of matches instead of true or false, that would be much more useful (esp. since 0 evals to false and any other number to true)<br>&nbsp;<br>

 

[tanderso]

Well, it at least keeps the original variable as read-only.&nbsp;&nbsp;The string is left intact while you also compute the integer.&nbsp;&nbsp;What else do you need?&nbsp;&nbsp;I don't think there is another way to do it.<br> <p> Sincerely,<br><a href=mailto: > </a><br><a href=

http://www.oac-design.com>Tom

Anderson</a><br>CEO, Order amid Chaos, Inc.<br>

http://www.oac-design.com