regex101: Golang Match Workspace

httpthe literal text http (case sensitive)

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

://the literal text ://

Non-Capturing Group(?:\S+/){4}

{4}repeats the group contents below exactly 4 times:

\S+any non-whitespace character, repeated at least once

/the literal / (47₁₀ / 57₈ / 2F₁₆)

Group 1([0-9a-f]{40})

Character Class[0-9a-f]{40}

{40}matches exactly 40 characters from the set below:

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

a-fone character from a (97₁₀) to f (102₁₀) (case sensitive)

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

?repeats the group contents below at most once:

/the literal / (47₁₀ / 57₈ / 2F₁₆)

Negated Character Class[^#\s]+

+matches at least one character outside the set below:

#the literal # (35₁₀ / 43₈ / 23₁₆)

\sany whitespace character

Group 3(#\S+)?

?repeats the group contents below at most once:

#the literal # (35₁₀ / 43₈ / 23₁₆)

\S+any non-whitespace character, repeated at least once

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

https?://(?:\S+/){4}([0-9a-f]{40})(/[^#\s]+)?(#\S+)?

New

https://try.gitea.io/silverwind/longlonglonglonglonglong/commit/e971bffacc0bdcfcbbfd00fc1a72ebbae645f478

https://try.gitea.io/silverwind/longlonglonglonglonglong/commit/e971bffacc0bdcfcbbfd00fc1a72ebbae645f478.

(https://try.gitea.io/silverwind/longlonglonglonglonglong/commit/e971bffacc0bdcfcbbfd00fc1a72ebbae645f478)

https://try.gitea.io/silverwind/longlonglonglonglonglong/src/commit/e971bffacc0bdcfcbbfd00fc1a72ebbae645f478#hash

https://try.gitea.io/silverwind/longlonglonglonglonglong/src/commit/e971bffacc0bdcfcbbfd00fc1a72ebbae645f478/long.json

https://try.gitea.io/silverwind/longlonglonglonglonglong/src/commit/e971bffacc0bdcfcbbfd00fc1a72ebbae645f478/long.json.

https://try.gitea.io/silverwind/longlonglonglonglonglong/src/commit/e971bffacc0bdcfcbbfd00fc1a72ebbae645f478/long.json#hash.

Regular Expressions 101

Regular Expression

Extraction