gistfile2.as

// Usage example:
var r = new Regex( ~/<%(.*?)%>/sm );
for( m in r.match( str ) )
	trace( "Inside tags: " + m[1] + ", Entire match: " + m[0] );

Regex.hx

class Regex {

    var exp : EReg;
    var str : String;

    public function new( r : EReg ) {
        exp = r;
    }

    public function match( s : String ) {
        str = s;
        return this;
    }

    public function matchedLeft() {
        return exp.matchedLeft();
    }

    public function matchedRight() {
        return exp.matchedRight();
    }

    public function hasNext() {
        return exp.match( str );
    }

    public function next() {
        var match = new Array<String>();
        var i = 0, m = exp.matched( i );
        while( m != null ) {
            match[i] = m;
            m = exp.matched( ++i );
        }
        str = exp.matchedRight();
        return match;
    }

}