Regular Expressions 101

Pro

^start of line

httpthe literal text http (case sensitive)

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

:paththe literal text :path (case sensitive)

\?the literal ? (63₁₀ / 77₈ / 3F₁₆)

id=the literal text id= (case sensitive)

Group 1([^&]+)

Negated Character Class[^&]+

+matches at least one character outside the set below:

&the literal & (38₁₀ / 46₈ / 26₁₆)

Non-Capturing Group(?:.*?(?:&gl=([^&\s]+).*)?)?

?repeats the group contents below at most once:

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

Non-Capturing Group(?:&gl=([^&\s]+).*)?

?repeats the group contents below at most once:

&gl=the literal text &gl= (case sensitive)

Group 2([^&\s]+)

Negated Character Class[^&\s]+

+matches at least one character outside the set below:

&the literal & (38₁₀ / 46₈ / 26₁₆)

\sany whitespace character

.*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

Detailed match information will be displayed here automatically.

25 tokens

^https?:path\?id=([^&]+)(?:.*?(?:&gl=([^&\s]+).*)?)?$

New

https:path?id=azAZ09._&blahk=blahv&gl=value&ddd=eee
https:path?id=azAZ09._&gl=value&ddd=eee
https:path?id=azAZ09._&blahk=blah&ddd=eee

https:path?id=azAZ09._&blahk=blahv&gl=value&ddd=eee
https:path?id=azAZ09._&gl=value&ddd=eee
https:path?id=azAZ09._&blahk=blah&ddd=eee