Navigation: Click-Script Guide > Expressions >
Logical Expressions
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Navigation: Click-Script Guide > Expressions > Logical Expressions |
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Logic expressions are used in almost every items of your setup project. You can define conditions to install your files, to do that you must write a logical expression. Also, there are many click-script actions that use logic expressions.
Comparison Operators
exp1 = exp2 |
Results true if the expressions are equal. |
exp1 != exp2 |
Results true if the expressions are different. |
exp1 > exp2 |
Results true if the expression 1 is greater than the expression 2. |
exp1 < exp2 |
Results true if the expression 1 is less than the expression 2. |
exp1 >= exp2 |
Results true if the expression 1 is greater than the expression 2, or the expressions are equal. |
exp1 >= exp2 |
Results true if the expression 1 is less than the expression 2, or the expressions are equal. |
Logical Operators
exp1 && exp2 |
Results true if the expression 1 and expression 2 are true. |
exp1 || exp2 |
Results true if the expression 1 is true or expression 2 is true. |
!exp1 |
Results true if the expression 1 is false. |
Expressions
VisualSetup supports two types of expression for comparison. You can compare either string expressions or numeric expressions.
String expressions must to be defined in quotes:
"my string %Var1%" = "%Var2%" "%Array[%i% + 1]%" = "Europe" |
Numeric expressions are defined without quotes:
%Indexes[%i%]% > 25 (35 * %j%) - 5 != 30 + %k% |
For further information on string and numeric expressions, read:
To define complex logical expressions you can use the logical operators. See some examples below:
("%City[%i%]" != "Madrid") && ("%City[%i%]" != "Barcelona") ((%i% = 1) || (%j% = 1)) && (%k% = 1) && ("%City[%i% + %j%]%" = "London") |