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CHAPTER 7

CATC Scripting Language for USB Statements

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.

Expression Statements

An expression statement describes a value, variable, or function.

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.

if Statements

An if statement follows the form

if <expression><statement>

For example,

if (3 && 3) Trace("True!");

will cause the program to evaluate whether the expression 3&&3is nonzero, or

True. It is, so the expression evaluates to True and the Trace statement will be

executed. On the other hand, the expression 3&&0is not nonzero, so it would

evaluate to False, and the statement wouldn't be executed.

if-else Statements

The form for an if-else statement is

if <expression><statement1>

else <statement2>

The following code

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Teledyne-lecroy USB Script Decode Manual Bedienungsanleitung Seite 27