Regular Expressions 101

^start of string

Character Class[a-zA-Z0-9ČŠŽĐ']

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

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

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

Čthe literal Č (268₁₀ / 414₈ / 10C₁₆) (case insensitive)

Šthe literal Š (352₁₀ / 540₈ / 160₁₆) (case insensitive)

Žthe literal Ž (381₁₀ / 575₈ / 17D₁₆) (case insensitive)

Đthe literal Đ (272₁₀ / 420₈ / 110₁₆) (case insensitive)

'the literal ' (39₁₀ / 47₈ / 27₁₆)

Non-Capturing Group(?:[A-Z0-9 ČŠŽĐ']{0,31}[A-Z0-9ČŠŽĐ'])?

?repeats the group contents below at most once:

Character Class[A-Z0-9 ČŠŽĐ']{0,31}

{0,31}matches between 0 and 31 characters from the set below:

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

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

the literal (32₁₀ / 40₈ / 20₁₆)

Čthe literal Č (268₁₀ / 414₈ / 10C₁₆) (case insensitive)

Šthe literal Š (352₁₀ / 540₈ / 160₁₆) (case insensitive)

Žthe literal Ž (381₁₀ / 575₈ / 17D₁₆) (case insensitive)

Đthe literal Đ (272₁₀ / 420₈ / 110₁₆) (case insensitive)

'the literal ' (39₁₀ / 47₈ / 27₁₆)

Character Class[A-Z0-9ČŠŽĐ']

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

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

Čthe literal Č (268₁₀ / 414₈ / 10C₁₆) (case insensitive)

Šthe literal Š (352₁₀ / 540₈ / 160₁₆) (case insensitive)

Žthe literal Ž (381₁₀ / 575₈ / 17D₁₆) (case insensitive)

Đthe literal Đ (272₁₀ / 420₈ / 110₁₆) (case insensitive)

'the literal ' (39₁₀ / 47₈ / 27₁₆)

$end of string

Global pattern flags

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

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

^[a-zA-Z0-9ČŠŽĐ'](?:[A-Z0-9 ČŠŽĐ']{0,31}[A-Z0-9ČŠŽĐ'])?$

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