ReNamer:Pascal Script:Quick guide

Basic control flow in a pascal script

PROGRAM

        ProgramName (FileList);

CONST

        <Constant declarations>

<ttTYPE

        <Type declarations>

VAR

        <Variable declarations>

        <definitions of subprogram>

<ttBEGIN

        <Executable statements>

END.

Control Structures

All the typical control structures (building blocks) occurring in Pascal Script are described in the following table.

The table shows a flow chart and Pascal Script code required to implement that logic. You can simnply copy and paste these blocks and then edit them to finish your script.

In actual implementation, just substitute the following:

• Replace <condition> with an actual Pascal statement that tests for a condition.
• Replace <Action> with code block that takes action relevant to the condition.
  

Control structure	Pascal script	Flowchart
If-then	if <condition> then begin <Action> end;	[[Image:]]
If-then-else	if <condition> then begin <Action-1> end else begin <Action-2> end;	[[Image:]]
for	for I:=x to y do begin <Action> end;	[[Image:]]
while	while <condition> do begin <Action> end;	[[Image:]]
case/switch (exclusive)	case x of 1: begin <Action-1> Break end; 2: begin <Action-2> Break end; //repeat for other cases else begin <Default Action> end; end;	[[Image:]]
case/switch (fall-through)	case x of 1: begin <Action-1> end; 2: begin <Action-2> end; //repeat for other cases else begin <Default Action> end; end;	[[Image:]]
Repeat until	repeat <Action> until <condition>;	[[Image:]]
Break
Continue
Exit