regex101: PCRE (Legacy) Match Workspace

Comment: ©Yuri Khmelenko

Comment: Ограничитель 1

Group 1((\<)|(\()|(\[)|(\{)| ((?=[[:ascii:]])[^\s\w\\\)\]\}\>]))

1st Alternative(\<)

Group 2(\<)

\<the literal < (60₁₀ / 74₈ / 3C₁₆)

2nd Alternative(\()

Group 3(\()

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

3rd Alternative(\[)

Group 4(\[)

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

4th Alternative(\{)

Group 5(\{)

\{the literal { (123₁₀ / 173₈ / 7B₁₆)

5th Alternative ((?=[[:ascii:]])[^\s\w\\\)\]\}\>])

Group 6((?=[[:ascii:]])[^\s\w\\\)\]\}\>])

Positive Lookahead(?=[[:ascii:]])

Character Class[[:ascii:]]

[:ascii:]a character with ASCII value 0 through 127

Negated Character Class[^\s\w\\\)\]\}\>]

\sany whitespace character

\wany word character

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

\]the literal ] (93₁₀ / 135₈ / 5D₁₆)

\}the literal } (125₁₀ / 175₈ / 7D₁₆)

\>the literal > (62₁₀ / 76₈ / 3E₁₆)

Comment: Шаблон

Group 7((?#ignore comments like this in the regular expression) (?(6) (?(?=(?:(?!\6).|(?<=\\)\6)*[^\\][\(][\?][\#]) (?:(?!\6).|(?<=\\)\6)*[^\\][\(][\?][\#] [^\)]*(?-1))) .*?)

Comment: ignore comments like this in the regular expression

Condition(?(6) (?(?=(?:(?!\6).|(?<=\\)\6)*[^\\][\(][\?][\#]) (?:(?!\6).|(?<=\\)\6)*[^\\][\(][\?][\#] [^\)]*(?-1)))

Uses the first branch if group 6 matched

If the condition is true, match this branch: (?(?=(?:(?!\6).|(?<=\\)\6)*[^\\][\(][\?][\#]) (?:(?!\6).|(?<=\\)\6)*[^\\][\(][\?][\#] [^\)]*(?-1))

Condition(?(?=(?:(?!\6).|(?<=\\)\6)*[^\\][\(][\?][\#]) (?:(?!\6).|(?<=\\)\6)*[^\\][\(][\?][\#] [^\)]*(?-1))

Uses the first branch if the lookaround matches

Positive Lookahead(?=(?:(?!\6).|(?<=\\)\6)*[^\\][\(][\?][\#])

Non-Capturing Group(?:(?!\6).|(?<=\\)\6)*

*repeats the group contents below any number of times:

1st Alternative(?!\6).

Negative Lookahead(?!\6)

\6the text saved by group 6

.any character

2nd Alternative(?<=\\)\6

Positive Lookbehind(?<=\\)

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

\6the text saved by group 6

Negated Character Class[^\\]

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

Character Class[\(]

Character Class[\?]

Character Class[\#]

If the condition is true, match this branch: (?:(?!\6).|(?<=\\)\6)*[^\\][\(][\?][\#] [^\)]*(?-1)

.*?any character, repeated any number of times

Comment: Ограничитель 2

Comment: экранизированные обратные слеши +

Comment: неэкранизированный ограничитель

Condition(?(2)(?<!(?<!(?<!(?<!(?<!(?<!(?<!(?<!\\)\\)\\)\\)\\)\\)\\)\\)\>)

Condition(?(3)(?<!(?<!(?<!(?<!(?<!(?<!(?<!(?<!\\)\\)\\)\\)\\)\\)\\)\\)\))

Condition(?(4)(?<!(?<!(?<!(?<!(?<!(?<!(?<!(?<!\\)\\)\\)\\)\\)\\)\\)\\)\])

Condition(?(5)(?<!(?<!(?<!(?<!(?<!(?<!(?<!(?<!\\)\\)\\)\\)\\)\\)\\)\\)\})

Condition(?(6)(?<!(?<!(?<!(?<!(?<!(?<!(?<!(?<!\\)\\)\\)\\)\\)\\)\\)\\)\6)

Comment: Модификаторы шаблонов

Comment: PHP [mixXsuUAJ] JavaScript [gmi] python [gmixsu]

Group 8((?(6)(?:[mixXsuUAJ]*)|(?(?=.*?[mixXsuUAJ]+)[mixXsuUAJ]+)))

Global pattern flags

x modifier: extended. Ignores unescaped whitespace and comments outside character classes

s modifier: single line. Allows a dot to match line terminators

g modifier: global. Finds all matches instead of stopping after the first

Search reference

Regular Expression

#©Yuri Khmelenko  
#Ограничитель 1
((\<)|(\()|(\[)|(\{)|
((?=[[:ascii:]])[^\s\w\\\)\]\}\>]))
#Шаблон
((?#ignore comments like this in the regular expression)                
(?(6)
(?(?=(?:(?!\6).|(?<=\\)\6)*[^\\][\(][\?][\#])
     (?:(?!\6).|(?<=\\)\6)*[^\\][\(][\?][\#]   
     [^\)]*(?-1)))
.*?)
#Ограничитель 2
#экранизированные обратные слеши + 
#неэкранизированный ограничитель
(?(2)(?<!(?<!(?<!(?<!(?<!(?<!(?<!(?<!\\)\\)\\)\\)\\)\\)\\)\\)\>)
(?(3)(?<!(?<!(?<!(?<!(?<!(?<!(?<!(?<!\\)\\)\\)\\)\\)\\)\\)\\)\))
(?(4)(?<!(?<!(?<!(?<!(?<!(?<!(?<!(?<!\\)\\)\\)\\)\\)\\)\\)\\)\]) 
(?(5)(?<!(?<!(?<!(?<!(?<!(?<!(?<!(?<!\\)\\)\\)\\)\\)\\)\\)\\)\})
(?(6)(?<!(?<!(?<!(?<!(?<!(?<!(?<!(?<!\\)\\)\\)\\)\\)\\)\\)\\)\6)
#Модификаторы шаблонов
#PHP [mixXsuUAJ] JavaScript [gmi] python [gmixsu]
((?(6)(?:[mixXsuUAJ]*)|(?(?=.*?[mixXsuUAJ]+)[mixXsuUAJ]+)))

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