Obtain arguments from a string seperated by a space and convert an argument in an array format to an-CodePudding

I have arguments that will be passed by the user for a command. Each argument for a command will be seperated with a space, which will represent a new argument. Example: "arg1 arg2 arg3" converts to ["arg1", "arg2", "arg3"] where the output is a JS array. This can be done with a simple .split(" ").

However, my problem begin when trying to format an array as a command argument. My goal is to allow the user to enter an agument in the format of an array (e.g. Starts with [ may contain multiple elements seperated by a , and ends with a ]) so for example: "arg1 [elem1, elem2] arg3" converts to ["arg1", ["elem1", "elem2"], "arg3"] where the inner and outer array is a JS array.

I have tried using JSON.Parse() however, each element would require the user to have " at the start of each element which is too complex for the user and non essential to be inputting. Also, the elements may not always intend to be a string and may be Boolean, Number or a custom type.

As of currently, this has been my best solution but misses some requirements and also is non functional when an array has a space inside.

s.split(/[\[\]]|\s /).filter(arg => arg.length > 1);

I have come up with some other solutions but all are missing one thing or another in the required specification set above. A solution that can handle nested arrays would be nice however it is non-essential and could make the solution alot more complex than it needs to be.

CodePudding user response：

Let's assume no funny characters as the input. Also nesting now allowed.

var str = "arg1 [ elem1  , elem2,elem3  ]  arg3";
console.log(str)

str = str.replace(/\s*,\s*/g, ',');
str = str.replace(/\[\s*/g, '[');
str = str.replace(/\s*\]/g, ']');

var arr = str.split(/\s /);
arr = arr.map(function(elem) {
  return elem.charAt(0) == '[' ? elem.slice(1, -1).split(",") : elem;
})

console.log(arr)