Control structures

With the following control structures, you can control the flow of scripts and conditions:

CheckEvery
Checks validity of a variable. If EVERY is passed as the first parameter, more than one agreement is possible.
- The variable to check is passed as the second parameter.
- value checks the value passed for validity.
- when checks further conditions.
- Statements after when-any are executed when one or more of the conditions are met.
- Statements after when-all are executed when all of the conditions are met.
- Statements after when-none are executed when none of the conditions are met.
Example
```
a = 11

erg = 0

c = false

;

Check("every", a)

   value(1)

      erg = erg + 1 ; if a is equal to 1

   when(c = true)

      erg= erg + 1  ; if c is TRUE

   When-Any        

      message = "any"  ; if a is equal to 1 OR c is TRUE

   When-All

      message = "all"  ; if a is equal to 1 AND c is TRUE

   When-None

      message = "none" ; if a is not equal to 1 AND c is not TRUE

end-check
```
CheckFirst
Checks validity of a variable. If FIRST is passed as the first parameter passed, only the statements after the first agreement are executed.
- The variable to check is passed as the second parameter.
- value checks the value passed for validity.
- when checks further conditions.
- Statements after when-any are executed when one or more of the conditions are met.
- Statements after when-all are executed when all of the conditions are met.
- The statements after when-none are executed when none of the conditions are met.
Example
```
a = 11

erg = 0

c = false

Check("FIRST", a)

   value(1)

      erg = 1    ; if a is equal to 1

   when(c = true)

      erg=2      ; if a is not equal to 1 AND c is TRUE

   When-Any        

      Erg=3      ; if a is equal to 1 OR c is TRUE

   When-All

      Erg=4      ; if a is equal to 1 AND c is TRUE

   When-None

      Erg=5      ; if a is not equal to 1 AND c is not TRUE

end-check
```
If
Checks whether the condition in brackets is valid. If so, the following commands up to End-if are executed.

If the condition in brackets is not valid, the script is continued after the End-if command. Enclose each individual condition in brackets.

Enclose multiple conditions linked by and or or by additional brackets.

Example
```
if (a < 10)

   b = 0

end-if

if ( (a = 10) and (b = 30) )

   c = 0

end-if
```
IfElse

Checks whether the condition in brackets is valid. If so, the following commands up to Else are executed. The script then continues with the statements following the respective End-If command.

If the condition in brackets is not valid, the commands between Else and the respective End-If are executed.

Example
```
if (a < 10)

   b = 0

else

   b = 1

end-if 
```
While
Executes the statements in a loop as long as the condition in parentheses is TRUE. The condition is evaluated before the statements are executed.
```
while (a < 100)

   a = a + 1

end-while
```
Region
Defines a section of a script that you can display or hide using the plus or minus symbols. This makes large scripts more manageable.

Example
```
#region InfoText

...

#endregion
```