regex101: JavaScript Match Workspace

Group 1([a-z0-9-]+\:\/+)

Character Class[a-z0-9-]+

+matches at least one character from the set below:

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

0-9one character from 0 (48₁₀) to 9 (57₁₀)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

\:the literal : (58₁₀ / 72₈ / 3A₁₆)

\/+the literal / (47₁₀ / 57₈ / 2F₁₆) , repeated at least once

Group 2([^\/\s]+)

Negated Character Class[^\/\s]+

+matches at least one character outside the set below:

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

\sany whitespace character

Group 3([a-z0-9\-@\^=%&;\/~\+]*)

Character Class[a-z0-9\-@\^=%&;\/~\+]*

*matches any number of characters from the set below:

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

0-9one character from 0 (48₁₀) to 9 (57₁₀)

\-the literal - (45₁₀ / 55₈ / 2D₁₆)

@the literal @ (64₁₀ / 100₈ / 40₁₆)

\^the literal ^ (94₁₀ / 136₈ / 5E₁₆)

=the literal = (61₁₀ / 75₈ / 3D₁₆)

%the literal % (37₁₀ / 45₈ / 25₁₆)

&the literal & (38₁₀ / 46₈ / 26₁₆)

;the literal ; (59₁₀ / 73₈ / 3B₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

~the literal ~ (126₁₀ / 176₈ / 7E₁₆)

\+the literal + (43₁₀ / 53₈ / 2B₁₆)

Character Class[\?]?

?matches at most one character from the set below:

\?the literal ? (63₁₀ / 77₈ / 3F₁₆)

Group 4([^ \#\r\n]*)

Negated Character Class[^ \#\r\n]*

*matches any number of characters outside the set below:

the literal (32₁₀ / 40₈ / 20₁₆)

\#the literal # (35₁₀ / 43₈ / 23₁₆)

\ra carriage return (ASCII 13)

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

#?optionally matches the literal # (35₁₀ / 43₈ / 23₁₆)

Group 5([^ \#\r\n]*)

Negated Character Class[^ \#\r\n]*

*matches any number of characters outside the set below:

the literal (32₁₀ / 40₈ / 20₁₆)

\#the literal # (35₁₀ / 43₈ / 23₁₆)

\ra carriage return (ASCII 13)

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

Global pattern flags

i modifier: insensitive. Matches without distinguishing uppercase and lowercase letters

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

Search reference

Regular Expression

([a-z0-9-]+\:\/+)([^\/\s]+)([a-z0-9\-@\^=%&;\/~\+]*)[\?]?([^ \#\r\n]*)#?([^ \#\r\n]*)

New

Bob: Hey there, have you checked https://www.facebook.com ?
(ignore) https://github.com/justsml?tab=activity#top (ignore this too)
smb:///winbox/dfs/ - ipp://printer
a a:// . Bob: Hey there, have you checked https://www.facebook.com ?
(ignore) https://github.com/justsml?tab=activity#top (ignore this too)
smb:///winbox/dfs/ - ipp://printer
a a:// . 
chrome-extension://flags
ms-help://good-luck.html
iris.beep://really/dots  // <- Matching period and dash chars at **only the beginning** of the string is difficult (unless we can anchor the beginning of line w/ ^)  & would make the regex over 100 chars in length.
s3://buckets-o-fun
pkcs11://because-pkcs7-is-shit
.iris.beep://really/dots

Regular Expressions 101

Regular Expression

Substitution