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'''Description:'''
{{TOC|side}}
ASCII string, e.g. "My name is Victor Troska"


Strings are written enclosed in double quotes, like "Hello".
A '''string''' is a [[:Category:Data Types|variable type]] that contains text. Possible length and characters depend on the game and its version.


You can make a string out of any type by using [[format]].
{{Feature|informative|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.}}




'''Compatibility Notes:'''
== Properties ==


'''Armed Assault''' and '''Elite'''
{| class="wikitable" style="text-align: center"
!
! {{Name|ofp|short}}
! {{Name|arma1|short}}
! {{Name|arma2|short}}
! {{Name|arma2oa|short}}
! {{Name|tkoh|short}}
! {{Name|arma3|short}} (before v1.56)
! {{Name|arma3|short}} (since v1.56)
|-
! Max length
| 2056
| colspan="5" | No set limit
| 9,999,999 to 10,000,000<br>(same as [[Array]] length)
|-
! Encoding
| {{Link|https://en.wikipedia.org/wiki/ASCII|ASCII}}
| colspan="6" | {{Link|https://en.wikipedia.org/wiki/Unicode|Unicode}}
|-
! {{Link|https://en.wikipedia.org/wiki/Code_page|Code page}}
| product language defined
| colspan="6" | {{Link|https://en.wikipedia.org/wiki/UTF-8|UTF-8}}
|-
! "text"
| colspan="7" | {{Icon|checked}}
|-
! 'text'
| {{Icon|unchecked}}
| colspan="6" | {{Icon|checked}}
|-
! {text}
| {{Icon|checked}}
| colspan="6" | {{Icon|unchecked}}
|}


Since Armed Assault/Elite, strings can also be alternatively enclosed in apostrophes, like 'Hello'.


Before ArmA, strings could be enclosed in curled braces, as there was no difference between strings and code.
== Commands and Functions ==


In ArmA code needs to be distinguished clearly, strings can no longer use { } syntax.
* [[:Category:Command Group: Strings|String Scripting Commands]]
* [[:Category:Function Group: Strings|String Functions]]


Note: Config strings use very similar syntax, but using quotes is optional.


[[Category: Types]]
== Single quote limitation ==
 
Other than double quotes ("text"), single quotes ('text') do not seem to support tabs:
<sqf>
_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"
*/
</sqf>
 
<sqf>
_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
*/
</sqf>
 
<small>Example courtesy of {{Link|http://forums.bistudio.com/member.php?81568-Rydygier|Rydygier}}</small>
 
 
== Examples ==
 
=== Quotes in Quotes ===
 
<sqf>
private _string = "my string ""with"" quotes";
private _string = 'my string "with" quotes';
private _string = 'my string with quotes';
</sqf>
 
=== String Formats ===
 
<sqf>
// Operation Flashpoint
_string = "Hello there" // works
_string = 'Hello there' // does NOT work
_string = {Hello there} // works
</sqf>
 
<sqf>
// since Armed Assault
_string = "Hello there" // works
_string = 'Hello there' // works
_string = {Hello there} // does NOT work
</sqf>
 
=== Operators ===
 
<sqf>private _finalString = "Hello" + " " + "there"; // outputs "Hello there" - the + sign concatenates strings</sqf>
The only basic operator to be used on strings is "plus". You can use "plus" to concatenate two strings.
 
=== Conversion ===
 
<sqf>
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
</sqf>
 
 
[[Category: Data Types]]

Latest revision as of 00:47, 24 February 2023

A string is a variable type that contains text. Possible length and characters depend on the game and its version.

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 TKOH 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" Checked
'text' Unchecked Checked
{text} Checked Unchecked


Commands and Functions


Single quote limitation

Other than double quotes ("text"), single quotes ('text') 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