Regular Expressions 101

^start of line

Character Class[A-Ma-h]{32}

{32}matches exactly 32 characters from the set below:

A-Mone character from A (65₁₀) to M (77₁₀) (case sensitive)

a-hone character from a (97₁₀) to h (104₁₀) (case sensitive)

Character Class[a-zA-Z0-9=]{6}

{6}matches exactly 6 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)

=the literal = (61₁₀ / 75₈ / 3D₁₆)

Group 1(.)

.any character (except for line terminators)

Character Class[a-zA-Z0-9=]{23}

{23}matches exactly 23 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)

=the literal = (61₁₀ / 75₈ / 3D₁₆)

\1the text saved by group 1

Character Class[a-zA-Z0-9=]{39}

{39}matches exactly 39 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)

=the literal = (61₁₀ / 75₈ / 3D₁₆)

$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

Regular Expression

^[A-Ma-h]{32}[a-zA-Z0-9=]{6}(.)[a-zA-Z0-9=]{23}\1[a-zA-Z0-9=]{39}$

New

BhcdbKEdGCbdCGHGaFEAEDEacaCAeDcbHvJoHw=urCPsFfGCeYPIzfPuFNHB61=oeaGMzlRmrlwBtvm6Fl0V6kiyRCkct1hCOCkpHd
aCchdcdHAHdaffGGbbhFcKAKACfbcGKDM18dMveVcaRXfK6aD7RoYKRVflMwPiedD26TYWjCcWvwS1CPfWkqPZrbDWZojiqbtaZAMO
DaeechbAEGcAhHDKKEFFGDDdcDbFhGbGHvJoHw=urCPsFfGCeYPIzfPuFNHB61=oeaGMzlRmrlwBtvm6Fl0V6kiUR1Rce1hIOCkpHd

Regular Expression

Substitution