handsome-json/lib/format.js

make your json strings handsome

// Generated by CoffeeScript 1.10.0
var format, render;

render = function(element, last, name, depth) {
  var i, indent, j, key, l, len, rendered, string, value;
  if (last == null) {
    last = false;
  }
  if (name == null) {
    name = null;
  }
  if (depth == null) {
    depth = 0;
  }
  rendered = '';
  indent = '  '.repeat(depth);
  if (name !== null) {
    rendered += indent + "\"" + name + "\": ";
  } else {
    rendered += "" + indent;
  }
  if (element instanceof Array) {
    rendered += "[\n";
    i = 0;
    l = false;
    for (j = 0, len = element.length; j < len; j++) {
      value = element[j];
      i += 1;
      if (i === element.length) {
        l = true;
      }
      rendered += render(value, l, null, depth + 1);
    }
    rendered += indent + "]";
  } else if (element instanceof Object) {
    rendered += "{\n";
    i = 0;
    l = false;
    for (key in element) {
      value = element[key];
      i += 1;
      if (i === Object.keys(element).length) {
        l = true;
      }
      rendered += render(value, l, key, depth + 1);
    }
    rendered += indent + "}";
  } else {
    if (typeof element === 'string') {
      string = element.replace(/\n/g, "\\n").replace(/\r/g, "\\r").replace(/"/g, '\\"');
      rendered += "\"" + string + "\"";
    } else if (typeof element === 'bool') {
      rendered += element === true ? 'true' : 'false';
    } else {
      rendered += "" + element;
    }
  }
  if (!last) {
    rendered += ",\n";
  } else {
    rendered += "\n";
  }
  return rendered;
};

format = function(json) {
  var error, error1, parsed;
  try {
    parsed = JSON.parse(json);
  } catch (error1) {
    error = error1;
    throw new Error('invalid JSON string');
  }
  return render(parsed, true).trim();
};

module.exports = format;