use strict;
my $str = '<form action="#" method="post">
<div>
<label for="name">Text Input:</label>
<input type="text" name="name" id="name" value="" tabindex="1" />
</div>
<div>
<h4>Radio Button Choice</h4>
<label for="radio-choice-1">Choice 1</label>
<input type="radio" name="radio-choice-1" id="radio-choice-1" tabindex="2" value="choice-1" />
<label for="radio-choice-2">Choice 2</label>
<input type="radio" name="radio-choice-2" id="radio-choice-2" tabindex="3" value="choice-2" />
</div>
<div>
<label for="select-choice">Select Dropdown Choice:</label>
<select name="select-choice" id="select-choice">
<option value="Choice 1">Choice 1</option>
<option value="Choice 2">Choice 2</option>
<option value="Choice 3">Choice 3</option>
</select>
</div>
<div>
<label for="textarea">Textarea:</label>
<textarea cols="40" rows="8" name="textarea" id="textarea"></textarea>
</div>
<div>
<label for="checkbox">Checkbox:</label>
<input type="checkbox" name="checkbox" id="checkbox" />
</div>
<div>
<input type="submit" value="Submit" />
</div>
</form>';
my $regex = qr/<(?!\/*strong\W|\/*h1\W|\/*input\W|\/*b\W).*?>/mp;
if ( $str =~ /$regex/g ) {
print "Whole match is ${^MATCH} and its start/end positions can be obtained via \$-[0] and \$+[0]\n";
# print "Capture Group 1 is $1 and its start/end positions can be obtained via \$-[1] and \$+[1]\n";
# print "Capture Group 2 is $2 ... and so on\n";
}
# ${^POSTMATCH} and ${^PREMATCH} are also available with the use of '/p'
# Named capture groups can be called via $+{name}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Perl, please visit: http://perldoc.perl.org/perlre.html