A string is a variable type that contains text. Possible length and characters depend on the game and its version.
Note
The encoding should be mostly transparent. The input files can be encoded both in UTF-16 or UTF-8, the toString and toArray functions always convert from/to UTF-16 representation.
Properties
| OFP | ArmA | Arma 2 | Arma 2:OA | Take On Helicopters | Arma 3 (before v1.56) | Arma 3 (since v1.56) | |
|---|---|---|---|---|---|---|---|
| Max length | 2056 | No set limit | 9,999,999 to 10,000,000 (same as Array length) |
||||
| Encoding | ASCII | Unicode | |||||
| Code page | product language defined | UTF-8 | |||||
| "text" | ✓ | ||||||
| 'text' | ✗ | ✓ | |||||
| {text} | ✓ | ✗ |
Commands and Functions
Single quote limitation
Strings can be written with both double quotes ("text") and single quotes ('text'). While they are identical, there are slightly differences in how they are treated:
- Single quote strings are parsed by the preprocessor and may cause undesired results.
- Single quote strings do not seem to support tabs:
_string = "
";
copyToClipboard _string;
diag_log format ["%1 %2 %3 x%4x", toArray _string, toArray copyFromClipboard, toArray (_string select [0]), _string];
/*
return is good: "[9,10,9] [9,10,9] [9,10,9] x
x"
*/
_string = '
';
copyToClipboard _string;
diag_log format ["%1 %2 %3 x%4x", toArray _string, toArray copyFromClipboard, toArray (_string select [0]), _string];
/*
return: "[9,10] [9,10] [9,10] x
x" - second tab vanished
*/
Example courtesy of Rydygier
Examples
Quotes in Quotes
private _string = "my string ""with"" quotes";
private _string = 'my string "with" quotes';
private _string = 'my string with quotes';
String Formats
// Operation Flashpoint
_string = "Hello there" // works
_string = 'Hello there' // does NOT work
_string = {Hello there} // works
// since Armed Assault
_string = "Hello there" // works
_string = 'Hello there' // works
_string = {Hello there} // does NOT work
Operators
private _finalString = "Hello" + " " + "there"; // outputs "Hello there" - the + sign concatenates strings
The only basic operator to be used on strings is "plus". You can use "plus" to concatenate two strings.
Conversion
private _value = 42; // this is a Number
hint _value; // error - hint takes a String, not a Number
hint format ["%1", _value]; // ok
hint str _value; // ok - since Armed Assault