Expressions
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Expressions
Expressions are important building blocks in an EasyUO script. They can be used to create relatively advanced integer mathematics.
An expression is any of the following:
- a literal
- a variable
- an expression enclosed with parenthesis
- an unary operator followed by an expression
- an expression followed by a binary operator and an expression
set %var 1337 ; literal numeric value set %name cheffe ; literal string value set %temp %var set %faux ! #true ; unary operator set %var %var + 1 ; binary operator set %calculus ( 2 + 2 ) * ( 3 - 1 ) ; parenthesis enclosed expressions
Statements
An EasyUO script is a sequence of statements. A statement is any of the following:
- a command
- a block
- a control structure
A command typically takes the form: <command_name> <parameters>
Example:
set %var 2 + 2
A block is a sequence of statements grouped within brackets. Opening and closing brackets must occurs on a distinct line (Hence one could argue that both "{" and "}" are statements by themselves). Blocks are almost exclusively used in conjunction with control structures.
{
set %var 2 + 2
display ok %var
}
Control structure are defined individually elsewhere in the documentation.
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