javascript - Format to JSON with regex -


i have read file json appearance, , format similar following:

{     varparent1: {         var1: true,         var2: "this string",         var3: 0,         var4: "another string"     },     varparent2:{         var1: false,         var2: 0,         var3: 92,         var4: "string here",         var5: "string2 here"     } }

i have code in variable, can't edit file, should work variable.

as can see, not valid format json, not being able parse it. need format this:

{     "varparent1": {         "var1": true,         "var2": "this string",         "var3": 0,         "var4": "another string"     },     "varparent2":{         "var1": false,         "var2": 0,         "var3": 92,         "var4": "string here",         "var5": "string2 here"     } }

i have thought logic , have conclusion (i think it's fine): have add '"' start , end of every line , between ":" too. i'm not able regex.

is there easier way?

this:

var json = text.replace(/([a-za-z0-9]+)\:/g, "\"$1\":");

works example, if string value contains colon, you're in trouble.

for more general solution, can start separating string literals rest, apply replace on non-strings, concatenate again:

        var nonstrings = [], strings = [];         var re = /"(?:[^"\\]|\\.)*"/g;         var rs;         var start = 0;         while (rs = re.exec(text)) {             var end = rs.index;             nonstrings.push(text.substring(start,end));             strings.push(rs[0]);             start = end + rs[0].length;         }         nonstrings.push(text.substring(start));         console.log(nonstrings);         console.log(strings);         (var = 0; < nonstrings.length; ++i) {             nonstrings[i] = nonstrings[i].replace(/([a-za-z0-9]+)\:/g, "\"$1\":");         }         var json = nonstrings[0];         (var = 0; < strings.length; ++i) {             json += strings[i] + nonstrings[i+1];         }         console.log(json);

update:

you can simplify merging different passes:

        var re = /"(?:[^"\\]|\\.)*"/g;         var rs;         var start = 0;         var json = "";         while (rs = re.exec(text)) {             var end = rs.index;             json += text.substring(start,end).replace(/([a-za-z0-9]+)\:/g, "\"$1\":") + rs[0];             start = end + rs[0].length;         }         json += text.substring(start).replace(/([a-za-z0-9]+)\:/g, "\"$1\":");         console.log(json);

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