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| <code style="display: inline; margin: 0px; padding: 2px;">Status Quo Function</code> is the successor of <code style="display: inline; margin: 0px; padding: 2px;">[[SQS_syntax|Status Quo Script]]</code> which is deprecated since [[Armed Assault]].
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| == Language Structure ==
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| The SQF Language is fairly simple in how it is built.
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| In fact: there are barely any actual language structures at all.
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| The functionality is provided via so called ''operators'' (or more commonly known [[Category:Scripting_Commands_Arma_3|scripting commands]]).
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| Those operators are one of the following types: Nular, Unary or Binary.
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| === Nular Operators ===
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| A Nular Operator is more or less a computed variable. Each time accessed, it will return the current state of something.
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| It is tempting to think of a Nular Operator as nothing more but a magic [[Variables|Global Variable]], but it is important to differentiate!
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| Consider following example in a mission with eg. 5 units:
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| {{codecomment|//Put the result of [[allUnits]] into a [[Variables|variable]].}}
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| _unitsArray = [[allUnits]];
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| {{codecomment|//Display the current array size using [[systemChat]].}}
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| [[systemChat]] [[str]] [[count]] _unitsArray;
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| {{codecomment|//Create a new unit in the player group.}}
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| [[group]] [[player]] [[createUnit]] ["B_RangeMaster_F", [[position]] [[player]], [], 0, "FORM"];
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| {{codecomment|//Output the array size again}}
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| [[systemChat]] [[str]] [[count]] _unitsArray;
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| {{codecomment|//Output the size of [[allUnits]]}}
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| [[systemChat]] [[str]] [[count]] [[allUnits]];
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| Now, what would the output of this look like?
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| System: 5
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| System: 5
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| System: 6
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| As you can see, <code style="display: inline; margin: 0px; padding: 2px;">_unitsArray</code> was not automatically updated. If [[allUnits]] was a [[Variables|Global Variable]], our private variable should have had reflected the change.
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| The reason for this is because [[allUnits]] and other Nular commands just return the current state of something and do not return a reference to eg. an [[Array]] containing all units.
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| It is generated each time, which is why some of theese commands are extensive
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| === Unary Operators ===
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| The Unary Operators are operators that expect an argument on their right side (<code style="display: inline; margin: 0px; padding: 2px;">unary <argument></code>). They always will take the first argument that occurs.
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| A common mistake would be the following:
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| {{codecomment|//Create some array containing three arrays.}}
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| _arr = [[1, 2, 3, 4, 5], [1, 2, 3, 4], [1, 2]];
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| {{codecomment|//Wrongly use the [[select]] command to get the count of the third array.}}
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| [[count]] _arr [[select]] 2; {{codecomment|//Error}}
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| Now, what went wrong?
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| Let's put some brackets in the right places to make the mistake understandible:
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| ([[count]] _arr) [[select]] 2; {{codecomment|//Error}}
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| Due to the nature of Unary operators, count instantly consumes our [[Variables|variable]] ''_arr'' and returns the number ''3''.
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| The ''3'' then is passed to [[select]] which does not knows what to do with a number as left argument and thus errors out.
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| To do it correctly, one would have to put the <code style="display: inline; margin: 0px; padding: 2px;">_arr select 2</code> in brackets.
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| The correct code thus would be:
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| {{codecomment|//Create some array containing three arrays.}}
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| _arr = [[1, 2, 3, 4, 5], [1, 2, 3, 4], [1, 2]];
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| {{codecomment|//Use Brackets to correctly get count of the third array.}}
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| [[count]] (_arr [[select]] 2); {{codecomment|//Good :)}}
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| === Binary Operators ===
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| == Rules Of Precedence ==
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| {|
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| |'''Lowest Precedence''' 1
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| |<code>[[a or b|<nowiki>||</nowiki>]] [[a or b|or]]</code>
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| |-
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| |2
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| |<code>[[and|&&]] [[and]]</code>
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| |-
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| |3
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| |<code>[[==]] [[!=]] [[a_greater_b|>]] [[a_less_b|<]] [[a_less=_b|>=]] [[a_less=_b|<=]] [[config_greater_greater_name|>>]]</code>
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| |-
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| |4
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| |''ALL BINARY OPERATORS''
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| |-
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| |5
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| |<code>[[else]]</code>
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| |-
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| |6
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| |<code>[[a_plus_b|+]] [[a_minus_b|-]] [[max]] [[min]]</code>
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| |-
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| |7
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| |<code>[[a_*_b|*]] [[a_/_b|/]] [[mod|%]] [[mod]] [[atan2]]</code>
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| |-
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| |8
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| |<code>[[a_^_b|^]]</code>
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| |-
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| |9
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| |''ALL UNARY OPERATORS''
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| |-
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| |'''Highest Precedence''' 10
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| |''ALL NULAR OPERATORS, VARIABLES OR VALUES''
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| |}
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| <!-- [[Category: Syntax]] [[Category:Scripting Topics]] -->
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