regex101: PCRE (Legacy) Substitution Workspace

1st Alternative(,\s*\"attr\" *: *\".*\"|(?=\s*\}))

Group 1(,\s*\"attr\" *: *\".*\"|(?=\s*\}))

1st Alternative,\s*\"attr\" *: *\".*\"

,the literal , (44₁₀ / 54₈ / 2C₁₆)

\s*any whitespace character, repeated any number of times

\"the literal " (34₁₀ / 42₈ / 22₁₆)

attrthe literal text attr (case sensitive)

\"the literal " (34₁₀ / 42₈ / 22₁₆)

*the literal (32₁₀ / 40₈ / 20₁₆) , repeated any number of times

:the literal : (58₁₀ / 72₈ / 3A₁₆)

*the literal (32₁₀ / 40₈ / 20₁₆) , repeated any number of times

\"the literal " (34₁₀ / 42₈ / 22₁₆)

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

\"the literal " (34₁₀ / 42₈ / 22₁₆)

2nd Alternative(?=\s*\})

Positive Lookahead(?=\s*\})

\s*any whitespace character, repeated any number of times

\}the literal } (125₁₀ / 175₈ / 7D₁₆)

2nd Alternative(\s*\"attr\" *: *\".*\"(,|(?=\s*\})))

Group 2(\s*\"attr\" *: *\".*\"(,|(?=\s*\})))

\s*any whitespace character, repeated any number of times

\"the literal " (34₁₀ / 42₈ / 22₁₆)

attrthe literal text attr (case sensitive)

\"the literal " (34₁₀ / 42₈ / 22₁₆)

*the literal (32₁₀ / 40₈ / 20₁₆) , repeated any number of times

:the literal : (58₁₀ / 72₈ / 3A₁₆)

*the literal (32₁₀ / 40₈ / 20₁₆) , repeated any number of times

\"the literal " (34₁₀ / 42₈ / 22₁₆)

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

\"the literal " (34₁₀ / 42₈ / 22₁₆)

Group 3(,|(?=\s*\}))

1st Alternative,

,the literal , (44₁₀ / 54₈ / 2C₁₆)

2nd Alternative(?=\s*\})

Positive Lookahead(?=\s*\})

\s*any whitespace character, repeated any number of times

\}the literal } (125₁₀ / 175₈ / 7D₁₆)

Global pattern flags

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

25 tokens

Regular Expression

(,\s*\"attr\" *: *\".*\"|(?=\s*\}))|(\s*\"attr\" *: *\".*\"(,|(?=\s*\})))

New

{"attr": "singlematch"}
{
	"attr": "MYVALUE",
    "anotherAttr0": "foobar",
	"attr": "MYVALUE2",
	"attr":"witthourspace",
	"attr": 23,
    "anotherAttr1": false,
	"attr": "notin arow",
    "anotherAttr2": "300",
	"attr": "MYVALUE3"
}
{"attr":"single match no space"}
{ "attr" : "Weird spacing"}
{
	"attr": "Simple json isn't collapsed but, that's fine"
}
{
	"attr2": "bob",
}
{}
{
"a":1,
"b":2,
}
{
	"attr": "fred",
	"attr": "Joe",
	"attr": "Hey!"
}
{
"a":2,
	"attr":"test",
	"bob":2,
}

Substitution

{"attr": "singlematch"}
{
	"attr": "MYVALUE",
    "anotherAttr0": "foobar",
	"attr": "MYVALUE2",
	"attr":"witthourspace",
	"attr": 23,
    "anotherAttr1": false,
	"attr": "notin arow",
    "anotherAttr2": "300",
	"attr": "MYVALUE3"
}
{"attr":"single match no space"}
{ "attr" : "Weird spacing"}
{
	"attr": "Simple json isn't collapsed but, that's fine"
}
{
	"attr2": "bob",
}
{}
{
"a":1,
"b":2,
}
{
	"attr": "fred",
	"attr": "Joe",
	"attr": "Hey!"
}
{
"a":2,
	"attr":"test",
	"bob":2,
}