Regular Expressions 101

Explanation

Pro

Group 1(>|(?:[^><]*?(?:\s| )))

1st Alternative>

>the literal > (62₁₀ / 76₈ / 3E₁₆)

2nd Alternative(?:[^><]*?(?:\s| ))

Non-Capturing Group(?:[^><]*?(?:\s| ))

Negated Character Class[^><]*?

*?matches any number of characters outside the set below:

>the literal > (62₁₀ / 76₈ / 3E₁₆)

<the literal < (60₁₀ / 74₈ / 3C₁₆)

Non-Capturing Group(?:\s| )

1st Alternative\s

\sany whitespace character

2nd Alternative 

 the literal text   (case insensitive)

Group 2(~(?!p\d+)[А-Яа-яЁёA-Za-z][А-Яа-яЁёA-Za-z0-9_]{1,20}?)

~the literal ~ (126₁₀ / 176₈ / 7E₁₆)

Negative Lookahead(?!p\d+)

pthe literal p (112₁₀ / 160₈ / 70₁₆) (case insensitive)

\d+a digit, repeated at least once

Character Class[А-Яа-яЁёA-Za-z]

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

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

Ёthe literal Ё (1025₁₀ / 2001₈ / 401₁₆) (case insensitive)

ёthe literal ё (1105₁₀ / 2121₈ / 451₁₆) (case insensitive)

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

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

Character Class[А-Яа-яЁёA-Za-z0-9_]{1,20}?

{1,20}?matches between 1 and 20 characters from the set below:

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

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

Ёthe literal Ё (1025₁₀ / 2001₈ / 401₁₆) (case insensitive)

ёthe literal ё (1105₁₀ / 2121₈ / 451₁₆) (case insensitive)

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

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

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

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

Positive Lookahead(?=,|\.|\s| |<)

1st Alternative,

,the literal , (44₁₀ / 54₈ / 2C₁₆)

2nd Alternative\.

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

3rd Alternative\s

\sany whitespace character

4th Alternative 

 the literal text   (case insensitive)

5th Alternative<

<the literal < (60₁₀ / 74₈ / 3C₁₆)

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

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

Match Information

Detailed match information will be displayed here automatically.

Quick Reference

26 tokens

Regular Expression

(>|(?:[^><]*?(?:\s|&nbsp;)))(~(?!p\d+)[А-Яа-яЁёA-Za-z][А-Яа-яЁёA-Za-z0-9_]{1,20}?)(?=,|\.|\s|&nbsp;|<)

New

[quote]var gg = 5;
var crashed = <span style="color: red">~gg</span>; [color=red]//так выглядит побитовое отрицание, вернет -6[/color][/quote]

Substitution

[quote]var gg = 5;
var crashed = <span style="color: red">~gg</span>; [color=red]//так выглядит побитовое отрицание, вернет -6[/color][/quote]