regex101: JavaScript Match Workspace

^start of line

Group protocol(?<protocol>jsr:|npm:|node:)

1st Alternativejsr:

jsr:the literal text jsr: (case sensitive)

2nd Alternativenpm:

npm:the literal text npm: (case sensitive)

3rd Alternativenode:

node:the literal text node: (case sensitive)

Group 2(\/*(@(?<scope>[^\/\s]+)\/)?(?<pkg>[^@\/\s]+)(@(?<version>[^\/\r\n\t\f\v]+))?)?

?repeats the group contents below at most once:

\/*the literal / (47₁₀ / 57₈ / 2F₁₆) , repeated any number of times

Group 3(@(?<scope>[^\/\s]+)\/)?

?repeats the group contents below at most once:

@the literal @ (64₁₀ / 100₈ / 40₁₆)

Group scope(?<scope>[^\/\s]+)

Negated Character Class[^\/\s]+

+matches at least one character outside the set below:

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

\sany whitespace character

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Group pkg(?<pkg>[^@\/\s]+)

Negated Character Class[^@\/\s]+

+matches at least one character outside the set below:

@the literal @ (64₁₀ / 100₈ / 40₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

\sany whitespace character

Group 6(@(?<version>[^\/\r\n\t\f\v]+))?

?repeats the group contents below at most once:

@the literal @ (64₁₀ / 100₈ / 40₁₆)

Group version(?<version>[^\/\r\n\t\f\v]+)

Negated Character Class[^\/\r\n\t\f\v]+

+matches at least one character outside the set below:

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

\ra carriage return (ASCII 13)

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

\ta tab character (ASCII 9)

\fa form-feed character (ASCII 12)

\va vertical tab character (ASCII 11)

Group pathname(?<pathname>\/.*)?

?repeats the group contents below at most once:

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

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

$end of line

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

^(?<protocol>jsr:|npm:|node:)(\/*(@(?<scope>[^\/\s]+)\/)?(?<pkg>[^@\/\s]+)(@(?<version>[^\/\r\n\t\f\v]+))?)?(?<pathname>\/.*)?$

New

npm:/@scope/package@version/pathname
npm:package@version/pathname
npm:package
npm:package/pathname
npm:package@version
npm:package@version/pathname
npm:/package
npm:/package/pathname
npm:/package@version
npm:/package@version/pathname
npm:@scope/package
npm:@scope/package/pathname
npm:@scope/package@version
npm:@scope/package@version/pathname
npm:/@scope/package
npm:/@scope/package/pathname
npm:/@scope/package@version
npm:/@scope/package@version/pathname
npm://////package/pathname
jsr:package
jsr:package/pathname
jsr:package@version
jsr:package@version/pathname
jsr:/package
jsr:/package/pathname
jsr:/package@version
jsr:/package@version/pathname
jsr:@scope/package
jsr:@scope/package/pathname
jsr:@scope/package@version
jsr:@scope/package@version/pathname
jsr:/@scope/package
jsr:/@scope/package/pathname
jsr:/@scope/package@version
jsr:/@scope/package@version/pathname
jsr://////package/pathname
jsr:@scope/package@~2.2.0/pathname/file.ts
jsr:@scope/package@>2.1/pathname/dirname/
jsr:@scope/package@1.0.0 - 1.2.0/pathname/file.ts
jsr:package@^2 <2.2 || > 2.3
jsr:@scope/package@>=1.0.0-rc.0 <1.0.1