Regular Expressions 101

<the literal < (60₁₀ / 74₈ / 3C₁₆)

Non-Capturing Group(?:(?<closeTag>\/)?(?<tagName>[A-Za-z]+)(?<tagAttributes>(\s*(?:\w+)\s*=\s*(["|']).*?\5)*)\s*(?<selfClosingTag>\/)?>)

Group closeTag(?<closeTag>\/)?

?repeats the group contents below at most once:

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Group tagName(?<tagName>[A-Za-z]+)

Character Class[A-Za-z]+

+matches at least one character from the set below:

A-Zone character from A (65₁₀) to Z (90₁₀) (case sensitive)

a-zone character from a (97₁₀) to z (122₁₀) (case sensitive)

Group tagAttributes(?<tagAttributes>(\s*(?:\w+)\s*=\s*(["|']).*?\5)*)

Group 4(\s*(?:\w+)\s*=\s*(["|']).*?\5)*

*repeats the group contents below any number of times:

\s*any whitespace character, repeated any number of times

Non-Capturing Group(?:\w+)

\w+any word character, repeated at least once

\s*any whitespace character, repeated any number of times

=the literal = (61₁₀ / 75₈ / 3D₁₆)

\s*any whitespace character, repeated any number of times

Group 5(["|'])

Character Class["|']

"the literal " (34₁₀ / 42₈ / 22₁₆)

|the literal | (124₁₀ / 174₈ / 7C₁₆)

'the literal ' (39₁₀ / 47₈ / 27₁₆)

.*?any character (except for line terminators), repeated any number of times

\5the text saved by group 5

\s*any whitespace character, repeated any number of times

Group selfClosingTag(?<selfClosingTag>\/)?

?repeats the group contents below at most once:

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

>the literal > (62₁₀ / 76₈ / 3E₁₆)

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

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25 tokens

Regular Expression

<(?:(?<closeTag>\/)?(?<tagName>[A-Za-z]+)(?<tagAttributes>(\s*(?:\w+)\s*=\s*(["|']).*?\5)*)\s*(?<selfClosingTag>\/)?>)

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