C++ reading out an unknown length array

[StephanTW]

 

Basicly I am wondering if there is a way to read out an array that looks like this:

 

[["rhs_weap_ak103","rhs_acc_dtk2","rhs_acc_2dpZenit","rhs_acc_1p29",["rhs_30Rnd_762x39mm_polymer",30],[],""],["rhs_weap_rpg7","","","rhs_acc_pgo7v3",["rhs_rpg7_PG7VS_mag",1],[],""],["rhs_weap_pya","","","",["rhs_mag_9x19_17",17],[],""],["rhs_uniform_flora_patchless",[["rhs_30Rnd_762x39mm_bakelite_U",1,30],["ACE_morphine",1]]],["rhs_6b23_6sh92_headset",[["rhs_30Rnd_762x39mm",1,30],["ACE_morphine",1]]],["rhs_sidor",[["rhs_30Rnd_762x39mm",1,30],["ACE_morphine",1]]],"rhs_6b47_bala","rhsusf_oakley_goggles_clr",["rhssaf_zrak_rd7j","","","",[],[],""],["ItemMap","","TFAR_fadak","ItemCompass","ItemWatch","rhs_1PN138"]]

where the only bit of the multi level array that can be almost any length is

["rhs_30Rnd_762x39mm",1,30],["ACE_morphine",1]

in the 3 locations it is mentioned in the first code bit.
I am a complete beginner with coding and haven't found anything similar, so maybe I am just looking for something that can't be done .
and for those wondering its a load-out export for arma 3.
 

[kurapika]

Is this array data being read from an interface of is it literally the above array as a string from a file?

[Forbidden Wafer]

41 minutes ago, StephanTW said:

Basicly I am wondering if there is a way to read out an array that looks like this:

I am a complete beginner with coding and haven't found anything similar, so maybe I am just looking for something that can't be done .
and for those wondering its a load-out export for arma 3.
 

There are a few ways you could handle this. Some really bizarre regex is one of them. What I would do is the old C way, but using some new C++ features (e.g. stringstream):

// this isn't real code, just the idea

char gigantic_string_from_arma = "[["rhs_weap_ak103","rhs_acc_dtk2","rhs_acc_2dpZenit","rhs_acc_1p29",["rhs_30Rnd_762x39mm_polymer",30],[],""],["rhs_weap_rpg7","","","rhs_acc_pgo7v3",["rhs_rpg7_PG7VS_mag",1],[],""],["rhs_weap_pya","","","",["rhs_mag_9x19_17",17],[],""],["rhs_uniform_flora_patchless",[["rhs_30Rnd_762x39mm_bakelite_U",1,30],["ACE_morphine",1]]],["rhs_6b23_6sh92_headset",[["rhs_30Rnd_762x39mm",1,30],["ACE_morphine",1]]],["rhs_sidor",[["rhs_30Rnd_762x39mm",1,30],["ACE_morphine",1]]],"rhs_6b47_bala","rhsusf_oakley_goggles_clr",["rhssaf_zrak_rd7j","","","",[],[],""],["ItemMap","","TFAR_fadak","ItemCompass","ItemWatch","rhs_1PN138"]]";

unsigned position = 0;
unsigned stack = 0;
bool is_string = false;
std::stringstream temp_str;
std::string str;
int num;

while (position != gigantic_string_from_arma.size());
{
  char c = gigantic_string_from_arm[position]; // get each character
  switch(c)
  {
  	case "[": //if '[', a new list is starting, so increment the stack/depth variable
    	stack++;
        break;
    case "]": // if ']', an open list is ending, so decrement the stack/depth variable
    	stack--;
        break;
    case "\"": // if an escaped double quote appears, it can be either the beginning or the end of a string
      {
          if (is_string) // is_string keeps track if the current character is part of a string
          {
              str = temp_string.str(); // get final string from stringstream (e.g. rhs_weap_ak103)
              temp_string.clear(); 
              //here you have the strings that you want to save and the depth of them in the stack/structure
          }
          is_string = !is_string; // invert is_string, to indicate when the string started and later when it ended
      }
      break;
    case ",": // commas separate different types of values
    	{
	    if (temp_string.size() > 0) // if the current character was part of a string, it should have matched an escaped double quote and temp_string been cleared at this point, so this is definitely not a string
            {
            	num = strtoi(temp_string.str()); // convert temp_string to an integer
                temp_string.clear();
                //here you have the number that you want to save and the depth of them in the stack/structure
            }
        }
    	break;
    default: // when the character is not a token
    	temp_string << c; // write char to string
  }
  postion++; // moves the offset of the gigantic_string to the next character
}

 

[StephanTW]

Just now, kurapika said:

Is this array data being read from an interface of is it literally the above array as a string from a file?

probs should have stated, but the array I export from the game and paste into the c++ file

[kurapika]

7 minutes ago, StephanTW said:

probs should have stated, but the array I export from the game and paste into the c++ file

Okay, so basically you need some kind of deserialization to map the 'text' data into an actual C++ data structure. But to be honest: this is quite an advanced task for a complete beginner, especially when using C++.

You may get faster on the tracks using a scripting language at this point (except you're explicitly learning C++, then you should read something about on how C++ JSON deserializer/serializer work, but again: this is no easy stuff for beginners.).

[StephanTW]

7 minutes ago, Forbidden Wafer said:

There are a few ways you could handle this. Some really bizarre regex is one of them. What I would do is the old C way, but using some new C++ features (e.g. stringstream):

 

okay, I see what you did there, but i don't suppose you'd be able to then assign the outputs as a letter or letter-number combo.

mhh what I am trying to basicly do is have it read it out and then put the items in a certain place in the arma 3 unit config layout...
Whats the max code length for this subforum, though 2k lines even for me feels too big for here

 

[kurapika]

1 minute ago, StephanTW said:

okay, I see what you did there, but i don't suppose you'd be able to then assign the outputs as a letter or letter-number combo.

mhh what I am trying to basicly do is have it read it out and then put the items in a certain place in the arma 3 unit config layout...
Whats the max code length for this subforum, though 2k lines even for me feels too big for here

 

Use GitHub Gists

[StephanTW]

1 minute ago, kurapika said:

Okay, so basically you need some kind of deserialization to map the 'text' data into an actual C++ data structure. But to be honest: this is quite an advanced task for a complete beginner, especially when using C++.

You may get faster on the tracks using a scripting language at this point (except you're explicitly learning C++, then you should read something about on how C++ JSON deserializer/serializer work, but again: this is no easy stuff for beginners.).

somehow I always manage to start with just a small thing and think you know this could be done easier without manually copy and pasting things and it always somehow leads to advanced stuff XD

[Forbidden Wafer]

Just now, StephanTW said:

okay, I see what you did there, but i don't suppose you'd be able to then assign the outputs as a letter or letter-number combo.

Not sure what you mean by that. You have the strings, the numbers, the order in which they appear and list depth.

[kurapika]

1 minute ago, StephanTW said:

somehow I always manage to start with just a small thing and think you know this could be done easier without manually copy and pasting things and it always somehow leads to advanced stuff XD

I know exactly how you feel And it's cool to have ambitious goals. But don't surrender if it'll not work on the first (or second, or third) try

[StephanTW]

 

3 minutes ago, Forbidden Wafer said:

Not sure what you mean by that. You have the strings, the numbers, the order in which they appear and list depth.

https://community.bistudio.com/wiki/Arma_3:_Characters_And_Gear_Encoding_Guide

 

if you scroll down to Character configuration part of the link you see that
 

weapons[] = {arifle_MX_ACO_pointer_F, hgun_P07_F, Throw, Put};	

now what i would prefer it to be is that  i could make it
 

weapons[] = {mg, sa, Throw, Put};	

where mg = arifle_MX_ACO_pointer_F and sa = hgun_P07_F
but then ofcourse the arifle_MX_ACO_pointer_F  and hgun_P07_F would be whatever they are in the array.
if this makes sense

[noodle with crab]

This is NOT an "array".

This is a snippet of JSON, so use JSON tool to read it is the best solution.

Please see https://github.com/nlohmann/json and use json.hpp to parse it. This is called "deserialize" a json string.