regex101: Python Match Workspace

Group 1((?:https?:)?\/\/)?

?repeats the group contents below at most once:

Non-Capturing Group(?:https?:)?

?repeats the group contents below at most once:

httpthe literal text http (case sensitive)

s?optionally matches the literal s (115₁₀ / 163₈ / 73₁₆) (case sensitive)

:the literal : (58₁₀ / 72₈ / 3A₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Group 2((?:www|m)\.)?

?repeats the group contents below at most once:

Non-Capturing Group(?:www|m)

1st Alternativewww

wwwthe literal text www (case sensitive)

2nd Alternativem

mthe literal m (109₁₀ / 155₈ / 6D₁₆) (case sensitive)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Group 3((?:youtube\.com|youtu.be))

Non-Capturing Group(?:youtube\.com|youtu.be)

1st Alternativeyoutube\.com

youtubethe literal text youtube (case sensitive)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

comthe literal text com (case sensitive)

2nd Alternativeyoutu.be

yoututhe literal text youtu (case sensitive)

.any Unicode character (except for line terminators)

bethe literal text be (case sensitive)

Group 4(\/(?:[\w\-]+\?v=|embed\/|v\/)?)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Non-Capturing Group(?:[\w\-]+\?v=|embed\/|v\/)?

?repeats the group contents below at most once:

1st Alternative[\w\-]+\?v=

Character Class[\w\-]+

+matches at least one character from the set below:

\wa Unicode word character

\-the literal - (45₁₀ / 55₈ / 2D₁₆)

\?the literal ? (63₁₀ / 77₈ / 3F₁₆)

v=the literal text v= (case sensitive)

2nd Alternativeembed\/

embedthe literal text embed (case sensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

3rd Alternativev\/

vthe literal v (118₁₀ / 166₈ / 76₁₆) (case sensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Group 5([\w\-]+)

Character Class[\w\-]+

+matches at least one character from the set below:

\wa Unicode word character

\-the literal - (45₁₀ / 55₈ / 2D₁₆)

Group 6(\S+)?

?repeats the group contents below at most once:

\S+any character that is not Unicode whitespace, repeated at least once

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Search reference

Regular Expression

((?:https?:)?\/\/)?((?:www|m)\.)?((?:youtube\.com|youtu.be))(\/(?:[\w\-]+\?v=|embed\/|v\/)?)([\w\-]+)(\S+)?

New

 <figure
      class="wp-block-embed-youtube wp-block-embed is-type-video is-provider-youtube wp-embed-aspect-4-3 wp-has-aspect-ratio">
      <div class="wp-block-embed__wrapper">
        <iframe
          title="| Title here |"
          width="1170"
          height="878"
          src="https://www.youtube.com/embed/OWGnQ61kLzw?feature=oembed" // <-- I want to get this link
          frameborder="0"
          allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture"
          allowfullscreen
        ></iframe>
      </div>
    </figure>

Regular Expressions 101

Regular Expression

Substitution