Breaking a string into separate parts using various layers of delimiters

Question

Breaking a string into separate parts using various layers of delimiters

I am currently facing an issue with this specific string:

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

My goal is to divide it using { as the initial delimiter and } as the final delimiter. However, there are nested brackets present in the string.

Is there a way for me to split this string so that it appears like this:

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

Furthermore, I will also need to perform another split within the nested brackets afterward.

javascript regex string split slice

Answer 1

Answer №1

To extract tokens and their corresponding depth level from a string, you can utilize the regular expression /([\{\}])/ to split the string into an array of tokens. By iterating through this array, you can determine the depth level of each token.

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

tokens.forEach(function analyzeToken(token) {
    if (!token) return;
    
    if (token === "{") {
        depth++;
        return;
    }
    
    if (token === "}") {
        depth--;
        return;
    }

    results.push({ depth: depth, token: token });
});

console.dir(results);

Answer 2

To extract tokens and their corresponding depth level from a string, you can utilize the regular expression /([\{\}])/ to split the string into an array of tokens. By iterating through this array, you can determine the depth level of each token.

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

tokens.forEach(function analyzeToken(token) {
    if (!token) return;
    
    if (token === "{") {
        depth++;
        return;
    }
    
    if (token === "}") {
        depth--;
        return;
    }

    results.push({ depth: depth, token: token });
});

console.dir(results);

Answer 3

Answer №2

Below is the code snippet that can be used:

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

//Output

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

Answer 4

Below is the code snippet that can be used:

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

//Output

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

Answer 5

Answer №3

If you want to split the code into a multi-dimensional array, you can use the snippet provided below:

let string = '(another((checker)check)john)(smith)(jane(does(smith(kline))))';

function getArray(text) {
  if (Array.isArray(text)) return text.map(t => getArray(t));
  var flag = null,
    arr = text.split(/([\(\)])/).filter(t => t.trim()),
    result = [],
    temp = '',
    depth = 0,
    groups = [];
  if (arr.length <= 1) return text;
  
  for (let i = 0; i < arr.length; i++) {
    temp = arr[i];
    
    if (temp === '(') {
      if (flag === null) {
        if (result.length) groups.push(result.join(''));
        flag = depth;
        result = [];
      }
      depth++;
    }
    
    if (temp === ')') {
      depth--;
    }

    result.push(temp);
    
    if (flag !== null && flag === depth && temp === ')') {
      let fr = result.join('');
      
      if (fr === text && RegExp('^\\(').test(fr) && RegExp('\\)$').test(fr)) {
        let ntext = text.replace(/(^\(|\)$)/g, '');
        fr = getArray(ntext);
      }
      
      groups.push(fr);
      flag = null;
      result = [];
    }
  }
  
  if (result.length) groups.push(result.join(''));
  
  return groups.map(g => getArray(g));
}

let finalArr = getArray(string);
console.log(JSON.stringify(finalArr));

//Expected output: [[["another",[[["checker"],"check"]],"john"]],["smith"],[["jane",[["does",[["smith",["kline"]]]]]]]]

Answer 6

If you want to split the code into a multi-dimensional array, you can use the snippet provided below:

let string = '(another((checker)check)john)(smith)(jane(does(smith(kline))))';

function getArray(text) {
  if (Array.isArray(text)) return text.map(t => getArray(t));
  var flag = null,
    arr = text.split(/([\(\)])/).filter(t => t.trim()),
    result = [],
    temp = '',
    depth = 0,
    groups = [];
  if (arr.length <= 1) return text;
  
  for (let i = 0; i < arr.length; i++) {
    temp = arr[i];
    
    if (temp === '(') {
      if (flag === null) {
        if (result.length) groups.push(result.join(''));
        flag = depth;
        result = [];
      }
      depth++;
    }
    
    if (temp === ')') {
      depth--;
    }

    result.push(temp);
    
    if (flag !== null && flag === depth && temp === ')') {
      let fr = result.join('');
      
      if (fr === text && RegExp('^\\(').test(fr) && RegExp('\\)$').test(fr)) {
        let ntext = text.replace(/(^\(|\)$)/g, '');
        fr = getArray(ntext);
      }
      
      groups.push(fr);
      flag = null;
      result = [];
    }
  }
  
  if (result.length) groups.push(result.join(''));
  
  return groups.map(g => getArray(g));
}

let finalArr = getArray(string);
console.log(JSON.stringify(finalArr));

//Expected output: [[["another",[[["checker"],"check"]],"john"]],["smith"],[["jane",[["does",[["smith",["kline"]]]]]]]]

Breaking a string into separate parts using various layers of delimiters

Answer №1

Answer №2

Answer №3

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