Regular Expressions 101

Explanation

Pro

^start of line

Positive Lookahead(?=.*[а-я])

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

Character Class[а-я]

а-яone character from а (1072₁₀) to я (1103₁₀) (case sensitive)

Positive Lookahead(?=.*[А-Я])

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

Character Class[А-Я]

А-Яone character from А (1040₁₀) to Я (1071₁₀) (case sensitive)

Character Class[а-яА-Я]+

+matches at least one character from the set below:

а-яone character from а (1072₁₀) to я (1103₁₀) (case sensitive)

А-Яone character from А (1040₁₀) to Я (1071₁₀) (case sensitive)

$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.

26 tokens

^(?=.*[а-я])(?=.*[А-Я])[а-яА-Я]+$

qwerty1
QWERTY1q
qwERTy
QWERTY1
QWER TY1q

Мама
авТо
гриБ
Яблоко
яБлоко
ябЛоко
яблОко
яблоКо
яблокО


агент007
стриж
ГТО
Три богатыря

qwerty1
QWERTY1q
qwERTy
QWERTY1
QWER TY1q

Мама
авТо
гриБ
Яблоко
яБлоко
ябЛоко
яблОко
яблоКо
яблокО


агент007
стриж
ГТО
Три богатыря