Teledyne LeCroy LeCroy Analyzers File Based Decoding Manual - Manual (Page 27)

File-based Decoding User Manual Chapter 7: Statements
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Chapter 7: Statements
Statements are the building blocks of a program. A program is made up of list of
statements.
Seven kinds of statements are used in CSL: expression statements, if statements, if-else
statements, while statements, for statements, return statements, and compound
statements.
7.1 Expression Statements
An expression statement describes a value, variable, or function.
<expression >
Here are some examples of the different kinds of expression statements:
Value: x + 3;
Variable: x = 3;
Function: Trace ( x + 3 );
The variable expression statement is also called an assignment statement, because it
assigns a value to a variable.
7.2 if Statements
An if statement follows the form
if <expression> <statement>
For example,
if (3 && 3) Trace("True!");
causes the program to evaluate whether the expression 3 && 3 is nonzero, or True. It
is, so the expression evaluates to True and the Trace statement is executed. On the
other hand, the expression 3 && 0 is not nonzero, so it would evaluate to False, and the
statement wouldn't be executed.
7.3 if-else Statements
The form for an if-else statement is
if <expression> <statement1>
else <statement2>
The following code
if ( 3 - 3 || 2 - 2 ) Trace ( "Yes" );
else Trace ( "No" );
causes “No” to be printed, because 3 - 3 || 2 - 2 evaluates to False (neither
3 - 3
nor 2 - 2 is nonzero).