Regular Expressions 101

^start of line

\/{3}the literal / (47₁₀ / 57₈ / 2F₁₆) , repeated exactly 3 times

@the literal text @

Group tag(?<tag>\w+)

\w+any word character, repeated at least once

Non-Capturing Group(?:[ \t]+{(?<type>[^{}]*)})?

?repeats the group contents below at most once:

Character Class[ \t]+

+matches at least one character from the set below:

the literal (32₁₀ / 40₈ / 20₁₆)

\ta tab character (ASCII 9)

{the literal { (123₁₀ / 173₈ / 7B₁₆)

Group type(?<type>[^{}]*)

Negated Character Class[^{}]*

*matches any number of characters outside the set below:

{the literal { (123₁₀ / 173₈ / 7B₁₆)

}the literal } (125₁₀ / 175₈ / 7D₁₆)

Character Class[ \t]+

+matches at least one character from the set below:

the literal (32₁₀ / 40₈ / 20₁₆)

\ta tab character (ASCII 9)

Group name(?<name>\w+)

\w+any word character, repeated at least once

Non-Capturing Group(?:[ \t]+(?<desc>.*(?:\n(?!\/{3} @\w).*)*))?

?repeats the group contents below at most once:

Character Class[ \t]+

+matches at least one character from the set below:

the literal (32₁₀ / 40₈ / 20₁₆)

\ta tab character (ASCII 9)

Group desc(?<desc>.*(?:\n(?!\/{3} @\w).*)*)

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

Non-Capturing Group(?:\n(?!\/{3} @\w).*)*

*repeats the group contents below any number of times:

\na line-feed (newline) character (ASCII 10)

Negative Lookahead(?!\/{3} @\w)

\/{3}the literal / (47₁₀ / 57₈ / 2F₁₆) , repeated exactly 3 times

@the literal text @

\wany word character

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

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

Detailed match information will be displayed here automatically.

25 tokens

Regular Expression

^\/{3} @(?<tag>\w+)(?:[ \t]+{(?<type>[^{}]*)})?[ \t]+(?<name>\w+)(?:[ \t]+(?<desc>.*(?:\n(?!\/{3} @\w).*)*))?

New

/// @tag {type} name description
/// description continue
/// another description line
/// @tag {type} name description
/// description continue
/// @tag name description just one line.
/// @tag {type} name