Decision Structures

Decision structures allow users to control the flow of the scripting logic.  Decision structures execute specific blocks of script based on one or more conditions.

INSTR = "if" EXPR "then" BLOCK |

// If bFileExists is true then deletes file

If bFileExists=True Then DeleteFile(File);

// If bFileExists is true then …

If bFileExists=True Then

Begin

//…It deletes file

DeleteFile(File);

//…It creates a directory

CreateDir ('c:\files');

//…It creates a file

CreateFile(File);

End;

INSTR = "if" EXPR "then" BLOCK "else" BLOCK |

-        Example 1:

// If bFileExists is true then deletes file otherwise create file

If bFileExists=True Then DeleteFile(File) Else CreateFile(File);

-        Example 2:

// If bFileExists is true then …

If bFileExists=True Then

// Delete file

DeleteFile(File)

//…otherwise…

Else

Begin

//…It creates a directory

CreateDir ('c:\files');

//…It creates a file

CreateFile(File);

End;