regex101: Python Match Workspace

Pro

^start of line

irnthe literal text irn (case sensitive)

Character Class[\r\n]+

+matches at least one character from the set below:

\ra carriage return (ASCII 13)

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

Non-Capturing Group(?:(\w+)[\r\n]+)?

?repeats the group contents below at most once:

Group 1(\w+)

\w+a Unicode word character, repeated at least once

Character Class[\r\n]+

+matches at least one character from the set below:

\ra carriage return (ASCII 13)

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

Group 2([a-zA-Z0-9\r\n]{64,65})

Character Class[a-zA-Z0-9\r\n]{64,65}

{64,65}matches between 64 and 65 characters from the set below:

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

A-Zone character from A (65₁₀) to Z (90₁₀) (case sensitive)

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

\ra carriage return (ASCII 13)

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

$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

25 tokens

Regular Expression

^irn[\r\n]+(?:(\w+)[\r\n]+)?([a-zA-Z0-9\r\n]{64,65})$

New

irn
1b6d13bbbe6e0e4bd8e5d7619bf7997672
bc42d1d2442b531a487f9061df2626

irn
1b6d13bbbe6e0e4bd8e5d7619bf7997672bc42d1d2442b531a487f9061df2626

irn
no
1b6d13bbbe6e0e4bd8e5d7619bf7997672
bc42d1d2442b531a487f9061df2626

irn
no
1b6d13bbbe6e0e4bd8e5d7619bf7997672bc42d1d2442b531a487f9061df2626

Extraction

irn
1b6d13bbbe6e0e4bd8e5d7619bf7997672
bc42d1d2442b531a487f9061df2626

irn
1b6d13bbbe6e0e4bd8e5d7619bf7997672bc42d1d2442b531a487f9061df2626

irn
no
1b6d13bbbe6e0e4bd8e5d7619bf7997672
bc42d1d2442b531a487f9061df2626

irn
no
1b6d13bbbe6e0e4bd8e5d7619bf7997672bc42d1d2442b531a487f9061df2626