AlliedModders - Merge two KeyValues trees

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- - Merge two KeyValues trees (https://forums.alliedmods.net/showthread.php?t=329507)

OneMore

12-27-2020 08:54

Merge two KeyValues trees

Hi guys,

Please advise the easiest way to join two KeyValues trees stored in two separate files with the same root name to one KeyValyes structure.

I mean:

Code:

First kv file file1.txt

"root node"

{

   "key1"

   {

      "subkey1" "subvalue1"

   }

}

Code:

Second kv file file2.txt

"root node"

{

   "key2"

   {

      "subkey2" "subvalue2"

   }

}

I want to have:

Code:

new_kv

"root node"

{

   "key1"

   {

      "subkey1" "subvalue1"

   }

   "key2"

   {

      "subkey2" "subvalue2"

   }

}

Ilusion9

12-27-2020 09:11

Re: Merge two KeyValues trees

Try this:

PHP Code:


		
			

    KeyValues kv1 = new KeyValues("root node");
    KeyValues kv2 = new KeyValues("root node");
    kv1.ImportFromFile("file1.txt");
    kv2.ImportFromFile("file2.txt");
    
    char key[256];
    char value[256];
    
    if (kv2.GotoFirstSubKey(false))
    {
        do
        {
            kv2.GetSectionName(key, sizeof(key));
            kv1.JumpToKey(key, true);
            
            if (kv2.GotoFirstSubKey(false))
            {
                do
                {
                    
                    kv2.GetSectionName(key, sizeof(key));
                    kv2.GetString(NULL_STRING, value, sizeof(value));
                    
                    kv1.SetString(key, value);
                    
                } while (kv2.GotoNextKey(false));
                
                kv.GoBack();
            }
            
            kv1.Rewind();
            
        } while (kv2.GotoNextKey(false));
    }

    delete kv1;
    delete kv2;

Now kv1 is kv1 + kv2 and you can use kv1.ExportToFile.

OneMore

12-27-2020 09:20

Re: Merge two KeyValues trees

Thanks!

Is it the easiest way? I mean quite a lot of code :(
I read about a trick with keyname "#base" here: https://forums.alliedmods.net/showthread.php?t=279853
It looks more simple. However, I haven't managed to achieve my result :(

Anyway, thanks a lot for the clean and complete code!

Ilusion9

12-28-2020 06:10

Re: Merge two KeyValues trees

https://sm.alliedmods.net/new-api/Ke...ImportFromFile
Imports a file in KeyValues format. The file is read into the current position of the tree.

Try this:

PHP Code:


		
			


KeyValues kv = new KeyValues("root node");

kv.ImportFromFile("file1.txt");

kv.ImportFromFile("file2.txt");

kv.ExportToFile("merged.txt");

delete kv;

OneMore

12-28-2020 10:24

Re: Merge two KeyValues trees

Quote:

Originally Posted by Ilusion9 (Post 2730415)

Try this: ...

This is it! Great thanks!

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