Make valid JSON from JSON like string - Regex?

Question

I have JSON like string which looks like:

{key1:my.value1,key2:value2}

It could not have any nested object or arrays. I can even prove it will be always like this with regex

var re = /^\{[A-Z0-9._]+:[A-Z0-9._]+(,[A-Z0-9._]+:[A-Z0-9._]+)*\}$/i;
console.log( re.test('{key1:my.value1,key2:value2}') )   // true

It looks really similar but it's not valid JSON so I can not iterate over it.

Question: Is there a way how to make from this JSON like string valid JSON?

I was thinking about some regex or something but really not sure how to make it. Any advise?

Result: From json above my valid JSON should looks like:

{
    "key1": "my.value1",
    "key2": "value2"
}

Are we to assume my, my.value1 and value2 are all defined in the current scope? — Phil
– Phil, Commented Sep 26, 2016 at 10:00
Hi @Phil it's actualy string so values should be always string as well, Please check my edit — Andurit
– Andurit, Commented Sep 26, 2016 at 10:00

Matthias · Accepted Answer · 2016-09-26 10:02:48Z

2

If it's always in that format, I would probably do something like:

Trim the curly Brackets
Split the remaining string by ,, then you get an array like this: ['key:my.value1', 'key2:my.value2']
iterate over all entries in that list, and split each of them by :, which would give you the key/value pairs

If all you need is to iterate over the entires, then you're ready to go. if you want to convert it to json, create a new map and put the key/value pairs to it.

answered Sep 26, 2016 at 10:02

Matthias

2,8751 gold badge24 silver badges37 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Andurit Over a year ago

nice way how to do it :) I peronaly pref @Phill one however you got my thumb up for this solution.

Phil · Accepted Answer · 2016-09-26 10:23:48Z

1

If you're sure of the format, you could simply create a JSON string by wrapping each key:value pair in quotes

var str = '{key1:my.value1,key2:value2}',
    rx = /([A-Z0-9._]+):([A-Z0-9._]+)/gi;

console.log(JSON.parse(str.replace(rx, '"$1":"$2"')));

edited Sep 26, 2016 at 10:23

answered Sep 26, 2016 at 10:08

Phil

166k25 gold badges265 silver badges269 bronze badges

Comments

Keith · Accepted Answer · 2016-09-26 10:22:53Z

1

Would this be ok. ->

function makeJsonString(v) {
    var s = v.split(/({|}|:|,)/g).
        filter(function (e) { return e.length !== 0 }),
        r = '{}:,';
    for (var l = 0; l < s.length; l ++) {
        var x = s[l];
        if (r.indexOf(x) < 0) {
           s[l] = '"' + s[l] + '"';
        }
    }
    return s.join('');
}

var x = makeJsonString('{key1:my.value1,key2:value2}');
//parse check
console.log(JSON.parse(x));

Example -> Fiddle

answered Sep 26, 2016 at 10:22

Keith

24.4k2 gold badges32 silver badges48 bronze badges

Collectives™ on Stack Overflow

Make valid JSON from JSON like string - Regex?

3 Answers 3

1 Comment

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

1 Comment

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related