How can I apply regular expression to filter a string

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How can I apply regular expression to filter only

from the following string

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Is simply dummy text of the printing and typesetting industry. 


Lorem Ipsum has been the industry's standard dummy text ever since the 1500s.

or Without using regular expression and Dom is there anyways to get the same

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3 comments

  1. That’s a shortcode and you can easily use the WordPress Shortcode API to handle those shortcodes:

    function video_shortcode( $atts, $content = null ) {
  // do whatever you want to to
}
add_shortcode('video', 'video_shortcode');

    In the $atts array you will have a list of all of your attributes from the video shortcode:

    array(
    "src" => "http://duel.evotechaustin.com/wp-content/uploads/2010/09/kramer.m4v",
    "width" => "480",
    "height" => "360",
    "id" => "b-test",
    "class" => "player"
)

  2. preg_match("/[video[^]]+]/i", $subject, $matches);

    $matches[0] contains

    [video src="http://duel.evotechaustin.com/wp-content/uploads/2010/09/kramer.m4v" width="480" height="360" id="b-test" class="player"]

  3. Use substring and indexOf

    for example, 

    htmlString = document.getElementById('div').innerHtml();
startIndex = htmlString.indexOf("[video");
endIndex = htmlString.indexOf("]", startIndex);
output = htmlString.substring(startIndex, endIndex);