regex101: json make strict

Pro

Group 1([:\[,])

Character Class[:\[,]

:the literal : (58₁₀ / 72₈ / 3A₁₆)

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

,the literal , (44₁₀ / 54₈ / 2C₁₆)

Negative Lookahead(?![+-]?\d+\.?\d*)

Character Class[+-]?

?matches at most one character from the set below:

+the literal + (43₁₀ / 53₈ / 2B₁₆)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

\d+a digit, repeated at least once

\.?optionally matches the literal . (46₁₀ / 56₈ / 2E₁₆)

\d*a digit, repeated any number of times

Negative Lookahead(?!false|true)

1st Alternativefalse

falsethe literal text false (case sensitive)

2nd Alternativetrue

truethe literal text true (case sensitive)

Negative Lookahead(?!".*?")

"the literal " (34₁₀ / 42₈ / 22₁₆)

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

"the literal " (34₁₀ / 42₈ / 22₁₆)

Group 2([^\{\[\r\n]*?)

Negated Character Class[^\{\[\r\n]*?

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

\{the literal { (123₁₀ / 173₈ / 7B₁₆)

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

\ra carriage return (ASCII 13)

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

Group 3([,\]\}])

Character Class[,\]\}]

,the literal , (44₁₀ / 54₈ / 2C₁₆)

\]the literal ] (93₁₀ / 135₈ / 5D₁₆)

\}the literal } (125₁₀ / 175₈ / 7D₁₆)

Global pattern flags

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

25 tokens

Regular Expression

([:\[,])(?![+-]?\d+\.?\d*)(?!false|true)(?!".*?")([^\{\[\r\n]*?)([,\]\}])

New

"bla":12.0,
"bla":+12.0,
"bla":-12.0,
"bla":+12,
"bla":false,
"bla":true,
"bla":+12.0.0,
"bla":"string",
"bla":path,
"bla":pathWith0.2,
"bla":,
"bla":{"inner":false,"bli":"s","blu":path},
"bla":[path1,path2,path3},

Extraction

"bla":12.0,
"bla":+12.0,
"bla":-12.0,
"bla":+12,
"bla":false,
"bla":true,
"bla":+12.0.0,
"bla":"string",
"bla":path,
"bla":pathWith0.2,
"bla":,
"bla":{"inner":false,"bli":"s","blu":path},
"bla":[path1,path2,path3},