[Function] Replace string

[7erra 629]

---------------------------------

UPDATE 29.01.2022

With Arma 3 2.06+ it is now possible to use regexReplace instead: https://community.bistudio.com/wiki/regexReplace

Performance:

["12345 123456", "123", "abc"] call TER_fnc_editString;

Execution Time: 0.0093 ms  |  Cycles: 10000/10000  |  Total Time: 93 ms

"12345 123456" regexReplace ["123/g", "abc"]

Execution Time: 0.0016 ms  |  Cycles: 10000/10000  |  Total Time: 16 ms

---------------------------------

 

Hello everyone,

I just wanted to share a small function. It can replace certain parts of a string with your own string.

/*
	Author: Terra
	
	Description:
	 Substitute a certain part of a string with another string.
	
	Parameters:
	1: STRING - Source string
	2: STRING - Part to edit
	3: STRING - Substitution
	
	Returns: STRING
	
	Example: 
		["12345 123456", "123", "abc"] call TER_fnc_editString;
		Returns: "abc45 abc456"
*/
TER_fnc_editString = 
{
  params ["_str", "_toFind", "_subsitution"];
  _char = count _toFind;
  _no = _str find _toFind;
  while {-1 != _str find _toFind} do {
      _no = _str find _toFind;
      _splitStr = _str splitString "";
      _splitStr deleteRange [(_no +1), _char -1];
      _splitStr set [_no, _subsitution];
      _str = _splitStr joinString "";
  };
  _str
};

 

 

Additional information:

Spoiler

Other topics:

http://kronzky.info/snippets/strings/index.htm - A collection of string manipulating functions. Sadly it seems not avaliable anymore.

 ^ - Other options for similar results

 

_________________________________________________________________________________________________________

 

You can also add the function to the function library:

// description.ext:

// Functions
class CfgFunctions
{
	class TER
	{
		class mainFnc
		{
			class editString {file = "filePaht\editString.sqf";};
		};
	};
	
};
//////////////////////////////////////////////////////////////////////////////////////
// editString.sqf:
/*
	Author: Terra
	
	Description:
	 Substitute a certain part of a string with another string.
	
	Parameters:
	1: STRING - Source string
	2: STRING - Part to edit
	3: STRING - Substitution
	
	Returns: STRING
	
	Example: 
		["12345 123456", "123", "abc"] call TER_fnc_editString;
		Returns: "abc45 abc456"
*/
params ["_str", "_toFind", "_subsitution"];
_char = count _toFind;
_no = _str find _toFind;
while {-1 != _str find _toFind} do {
	_no = _str find _toFind;
	_splitStr = _str splitString "";
	_splitStr deleteRange [(_no +1), _char -1];
	_splitStr set [_no, _subsitution];
	_str = _splitStr joinString "";
};
_str

Have fun editing,

 

Terra

 

Edited January 29, 2022 by 7erra
regexReplace

[7erra 629]

New version: v1.1

• ADDED: Edit more than one part of your source string
• FIXED: "Safety switch" so the function doesn't run infinitely and crash the game

 

/*
	Author: Terra
	
	Description:
	 Substitute a certain part of a string with another string.
	
	Parameters:
	1: STRING - Source string
	2: STRING - Part to edit
		* ARRAY OF STRINGS - Multiple parts to edit
	3: STRING - Substitution
	4: (Optional) NUMBER - maximum substitutions
		* Default: 10
	5: (Optional) CASE - Enable maximum limit of substitutions (WARNING: Substituting an expression with the same expression will lead to infinite loops)
		* Default: true
	
	Returns: STRING
*/
_TER_fnc_editString =
{
  params ["_str", "_toFind", "_subsitution", ["_numLimit",10,[1]], ["_limit",true,[true]]];
  if (typeName _toFind != typeName []) then {_toFind = [_toFind]};
  {
      _char = count _x;
      _no = _str find _x;
      private _loop = 0;
      while {-1 != _str find _x && _loop < _numLimit} do {
          _no = _str find _x;
          _splitStr = _str splitString "";
          _splitStr deleteRange [(_no +1), _char -1];
          _splitStr set [_no, _subsitution];
          _str = _splitStr joinString "";
          if (_limit) then {_loop = _loop +1;};
      };
  } forEach (_toFind);
  _str
};

Examples:

Spoiler

Example 1: 
        ["12345 123456", "123", "abc"] call TER_fnc_editString;
        Returns: "abc45 abc456"
    
    Example 2:
        ["123456 123456 TEST", ["12", "56", "TEST"], "abc"] call TER_fnc_editString;
        Returns: "abc34abc abc34abc abc"
    
    Example 3:
        ["123 123", "123", " 123"] call TER_fnc_editString;
        Returns: "          123 123" // 10 substitutions
        
        ["123 123", "123", " 123", 20] call TER_fnc_editString;
        Returns: "                    123 123" // 20 substitutions
        
        ["123 123", "123", " 123", 10, false] call TER_fnc_editString;
        ! Infinite loop and crash !

 

Have fun editing,

 

Terra