Want to replace the string a number using regex

Question

I have a json string which has the below value

"appId": 434832826

I want to add double quotes around the number so that the json becomes valid.

I tried replaceAll(":\\\s\\\d+", ":\"$0\"");

But it is replacing the value as

"appId":": 434832826"

I am not sure if this isthe correct regex. An help is much appreciated. Thanks in advance

Better use appropiate JSON functions, depending on the language used. — Jan
– Jan, Commented Feb 1, 2016 at 14:00
I am unable to parse this String to JSON due to errors in the json. So actually speaking I am doing these operations on a String — Sathiya Narayanan
– Sathiya Narayanan, Commented Feb 1, 2016 at 14:01
Put the number in a capturing group and use this - e.g. replaceAll(":\\\s*(\\\d+)", ":\"$1\""); — Jan
– Jan, Commented Feb 1, 2016 at 14:03

Jan · Accepted Answer · 2016-02-01 14:08:30Z

2

Put the number in a capturing group and use the following regex:

replaceAll(":\\\s*(\\\d+)", ":\"$1\"");

answered Feb 1, 2016 at 14:08

Jan

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Comments

hek2mgl · Accepted Answer · 2016-02-01 14:06:31Z

2

You can use jq:

jq '.appId|=tostring' input.json

Imagine you have the following json:

{
    "appId": 434832826,
    "foo": "bar"
}

The above command would produce:

{
  "appId": "434832826",
  "foo": "bar"
}

answered Feb 1, 2016 at 14:06

hek2mgl

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