regex101: PCRE (Legacy) Match Workspace

Group 1(^(\/\*)|([ \t'"](\/\*)))

1st Alternative^(\/\*)

^start of line

Group 2(\/\*)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

\*the literal * (42₁₀ / 52₈ / 2A₁₆)

2nd Alternative([ \t'"](\/\*))

Group 3([ \t'"](\/\*))

Character Class[ \t'"]

the literal (32₁₀ / 40₈ / 20₁₆)

\ta tab character (ASCII 9)

'the literal ' (39₁₀ / 47₈ / 27₁₆)

"the literal " (34₁₀ / 42₈ / 22₁₆)

Group 4(\/\*)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

\*the literal * (42₁₀ / 52₈ / 2A₁₆)

Negative Lookahead(?!\/)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Group 5(.|[\r\n]|\n)+?

+?repeats the group contents below at least once:

1st Alternative.

.any character (except for line terminators)

2nd Alternative[\r\n]

Character Class[\r\n]

\ra carriage return (ASCII 13)

\na line-feed (newline) character (ASCII 10)

3rd Alternative\n

\na line-feed (newline) character (ASCII 10)

\*the literal * (42₁₀ / 52₈ / 2A₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

\n?optionally matches a line-feed (newline) character (ASCII 10)

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

Search reference

Regular Expression

(^(\/\*)|([ \t'"](\/\*)))(?!\/)(.|[\r\n]|\n)+?\*\/\n?\n?

Test String
New

/* 'aa/' */

/*!test*/

/* someone said 'hello' */

/* "hello"*/

/***test****/

/******
'test'
****/

/****
test
****/

// let's try a single quote here "test"

/*
test
*/

/*'test'*/

/*
     test
*/

/*
	'test ' */

/** @require 'aa/*' */

.test
	content ''/* test */

.test content "/* test */"

.test content /* test */

@require 'aaa/*'

@require 'bbb/*' /* test */

@require 'ccc/*'

@require 'ccc/* ab */' /* test */

@require 'ddd/*' /*test  '*/
@require "ddd/*" /*test  '*/

@require 'eee/*'
// test again

@require 'fff/*'

@require 'ggg/*'


@require 'hhh/*'


@require 'iii/*'

@require 'jjj/*' /* 
test */

@require 'kk/**/*'

Regular Expressions 101

Regular Expression

Test String
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Regular Expression

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