regex101: JavaScript Substitution Workspace

1st Alternative("(?:\\[\s\S]|[^"])*")

Group 1("(?:\\[\s\S]|[^"])*")

"the literal " (34₁₀ / 42₈ / 22₁₆)

Non-Capturing Group(?:\\[\s\S]|[^"])*

*repeats the group contents below any number of times:

1st Alternative\\[\s\S]

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

Character Class[\s\S]

\sany whitespace character

\Sany non-whitespace character

2nd Alternative[^"]

Negated Character Class[^"]

"the literal " (34₁₀ / 42₈ / 22₁₆)

2nd Alternative((?:\/\/|#)[^\n]*)

Group 2((?:\/\/|#)[^\n]*)

Non-Capturing Group(?:\/\/|#)

1st Alternative\/\/

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

2nd Alternative#

#the literal # (35₁₀ / 43₈ / 23₁₆)

Negated Character Class[^\n]*

*matches any number of characters outside the set below:

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

3rd Alternative(\/\*[\s\S]*?\*\/)

Group 3(\/\*[\s\S]*?\*\/)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

\*the literal * (42₁₀ / 52₈ / 2A₁₆)

Character Class[\s\S]*?

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

\sany whitespace character

\Sany non-whitespace character

\*the literal * (42₁₀ / 52₈ / 2A₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Global pattern flags

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

26 tokens

Regular Expression

("(?:\\[\s\S]|[^"])*")|((?:\/\/|#)[^\n]*)|(\/\*[\s\S]*?\*\/)

New

//first line

	{"aaa": "qwerty",//00
	"bbb": 1234 //comment (not pure JSON syntax)
	,"ccc": true # alternative comment style
	,"dd\"d":/*multiline\" comm\ent*/ /*comm2\*/null,
	"ee//e": "example of any symbols in key including inactive comments",
	"jsonComm":/*is*/"data format",/*which contains*///comments
	"multiline1" /*: 1, //- example of multiline comments
	"multiline2": 2,
	"multiline3":= 1234,*/ :[36.8,false/*,34*/,
		"/**/",[1,2,3,4,[//56789
		5,6,[[/*0*/7,{"x":/*xx*/"x"}],8]],{}]  ],
	"mayBeAnyStructure":{"a":1/**/,"b":2},
 "lineEnd\\" 
 :"end"
}//after json
  
 /*2*/

Extraction

//first line

	{"aaa": "qwerty",//00
	"bbb": 1234 //comment (not pure JSON syntax)
	,"ccc": true # alternative comment style
	,"dd\"d":/*multiline\" comm\ent*/ /*comm2\*/null,
	"ee//e": "example of any symbols in key including inactive comments",
	"jsonComm":/*is*/"data format",/*which contains*///comments
	"multiline1" /*: 1, //- example of multiline comments
	"multiline2": 2,
	"multiline3":= 1234,*/ :[36.8,false/*,34*/,
		"/**/",[1,2,3,4,[//56789
		5,6,[[/*0*/7,{"x":/*xx*/"x"}],8]],{}]  ],
	"mayBeAnyStructure":{"a":1/**/,"b":2},
 "lineEnd\\" 
 :"end"
}//after json
  
 /*2*/