SQF Syntax

SQF syntax was introduced in Operation Flashpoint: Resistance and is the common syntax since Armed Assault. An alternative syntax is the SQS syntax (deprecated since Armed Assault).

Rules

Binding rules:

• Curled braces ({ }) group code to blocks
• Commands and blocks are followed by semicolons (;)

The latter rule tells the game engine where one command ends and the next starts.

Example:

STATEMENT 1;
STATEMENT 2;

BLOCK
{
    STATEMENT 3;
    STATEMENT 4; 
};

While SQS syntax is line based, SQF syntax is based on structured expressions. End-of-line has no special meaning - it is considered to be equivalent to space or tab, and is therefore not required, even when ending a statement.

Comments

A comment is any free text which is ignored by the game engine. In SQF syntax you can write comments using the command comment.

Example:

comment "This is a comment";

If a file is loaded with preprocessFile, you may also define C-like comments:

Line comment

A line comment starts with // and makes the rest of the line a comment.

Block comment

A block comment starts with /* and ends with */. All text in between is considered a comment.

Examples:

// This is a line comment

/*
This is
a very long
block comment
*/

Language Constructs

Read the article Control Structures for information about the control structures available in SQF syntax.

See also

• SQS syntax
• Function