使用多个嵌套定界符分割字符串

Question

I have a problem with this string:

{1 (Test)}{2 ({3 (A)}{4 (B)}{5 (C)})}{100 (AAA{101 (X){102 (Y)}{103 (Z)})}

I want to split it using { for the first delimiter and } for the last delimiter, but as you can see I have nested brackets.

How can I split this string to have something like this:

1 (Test)
2 ({3 (A)}{4 (B)}{5 (C)})
100 (AAA{101 (X){102 (Y)}{103 (Z)})

And after that I will need to split it again for the nested brackets.

Answer 1

You can split a string using /([\\{\\}])/ regexp and scan the resulting array to extract tokens and depth level.

var string = "{1 (Test)}{2 ({3 (A)}{4 (B)}{5 (C)})}{100 (AAA{101 (X){102 (Y)}{103 (Z)})}";
var tokens = string.split(/([\{\}])/), result = [], depth = 0;

tokens.forEach(function scan(token){
   if(!token) return;
   if(token === "{") {
       depth++;
       return;
   }
   if(token === "}") {
      depth--;
      return;
   }
   result.push({depth: depth, token: token});

}); 
console.dir(result);

Answer 2

use below code

var a = '{1 (Test)}{2 ({3 (A)}{4 (B)}{5 (C)})}{100 (AAA{101 (X){102 (Y)}{103 (Z)})}';
b = a.replace(/\{/g,'');
c = b.replace(/\}/g,'\n')
console.log(c);

//Results

1 (Test)
2 (3 (A)
4 (B)
5 (C)
100 (AAA101 (X)
102 (Y)
103 (Z))

Answer 3

You can also use the code below to break it into multi-dimensional array;

 let logic = '(another((checker)check)john)(smith)(jane(does(smith(kline))))'; function getLevel(text) { if (Array.isArray(text)) return text.map(t => getLevel(t)); var d = null, str_split = text.split(/([\\(\\)])/).filter(t => t.trim()), result = [], tr = '', depth = 0, groups = []; if (str_split.length <= 1) return text; for (let i = 0; i < str_split.length; i++) { tr = str_split[i]; //console.log(tr); if (tr === '(') { if (d === null) { if (result.length) groups.push(result.join('')); d = depth; result = []; } depth++; } if (tr === ')') { depth--; } result.push(tr); if (d !== null && d === depth && tr === ')') { let fr = result.join(''); if (fr === text && RegExp('^\\\\(').test(fr) && RegExp('\\\\)$').test(fr)) { let ntext = text.replace(/(^\\(|\\)$)/g, ''); fr = getLevel(ntext); } groups.push(fr); d = null; result = []; } } if (result.length) groups.push(result.join('')); return groups.map(g => getLevel(g)); } let gr = getLevel(logic); console.log(JSON.stringify(gr)); //Expected output: [[["another",[[["checker"],"check"]],"john"]],["smith"],[["jane",[["does",[["smith",["kline"]]]]]]]]