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An [[Identifier]] is the name given to a [[Variables|variable]] that the scripter can choose: It is the name that ''identifies'' the variable. | |||
== Rules == | == Rules == | ||
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Binding rules for identifiers: | Binding rules for identifiers: | ||
* Identifiers may consist of any ASCII text characters (a-z, A-Z), numbers (0-9) and underscores (_) | * Identifiers may consist of any ASCII text characters (a-z, A-Z), numbers (0-9) and underscores (_). | ||
* Identifiers '''must not''' start with a number (e.g "9myVariable" is invalid) | * Identifiers '''must not''' start with a number (e.g "9myVariable" is invalid). | ||
* Identifiers of [[Variables|local variables]] '''must''' start with an underscore | * Identifiers of [[Variables|local variables]] '''must''' start with an underscore. | ||
* Identifiers are '''case-insensitive'''. | * Identifiers are '''case-insensitive'''. | ||
* Identifiers '''cannot be the same as reserved words''' (e.g [[:Category:Scripting Commands|commands]] and [[:Category:Functions|functions]]). | * Identifiers '''cannot be the same as reserved words''' (e.g [[:Category:Scripting Commands|commands]] and [[:Category:Functions|functions]]). | ||
== Recommendations == | == Recommendations == | ||
It is recommended to write '''local variable identifiers''' in {{Wikipedia|Camel_case|camel case}} syntax. This makes identifiers more readable: | It is recommended to write '''local variable identifiers''' in {{Wikipedia|Camel_case|camel case}} syntax. This makes identifiers more readable: | ||
<code>[[private]] _myVariableName = 5;</code> | <code>[[private]] _myVariableName = 5;</code> | ||
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A less encountered naming format is separating all sub-words with underscores: | A less encountered naming format is separating all sub-words with underscores: | ||
<code>_my_variable_name = 5;</code> | <code>_my_variable_name = 5;</code> | ||
== See also == | == See also == | ||
* [[Variables]] | * [[Variables]] | ||
[[Category: Syntax]] | [[Category: Syntax]] | ||
Revision as of 15:35, 30 December 2020
An Identifier is the name given to a variable that the scripter can choose: It is the name that identifies the variable.
Rules
| Valid | Invalid |
|---|---|
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Binding rules for identifiers:
- Identifiers may consist of any ASCII text characters (a-z, A-Z), numbers (0-9) and underscores (_).
- Identifiers must not start with a number (e.g "9myVariable" is invalid).
- Identifiers of local variables must start with an underscore.
- Identifiers are case-insensitive.
- Identifiers cannot be the same as reserved words (e.g commands and functions).
Recommendations
It is recommended to write local variable identifiers in camel case syntax. This makes identifiers more readable:
private _myVariableName = 5;
It is also recommended to prefix global variable identifiers with your tag in order to avoid any potential conflict between addons, scripts and missions:
// Tag_identifier
UNIQUETAG_player = player;
A less encountered naming format is separating all sub-words with underscores:
_my_variable_name = 5;