Pinnacle Speakers DEKO500 - Manual (Page 126)

Macro Programming Language 124
Deko500 User’s Guide
C OMMENTS
A comment is text within a macro that does not affect the function of the macro.
Comments make macros easier to analyze and edit, especially if the macro was
written some time ago or written by another programmer. Many programmers
consider a program incomplete without comments. You may find the same to be true
of your macros.
A single-line comment starts with a pound sign ( # ). Deko500 ignores text to the right
of the pound sign.
# This comment is on a line by itself.
command # This one shares a line with a command.
Another way to create a comment is to precede the comment with /* and close it
with */ . Deko500 ignores text between /* and */ . This way, you can create
multiple-line comments.
/* This is a multiple-line comment.
None of this text affects the function
of this macro; Deko500 ignores
every line of it */
C ONDITIONAL C OMMANDS AND L OOPS
Conditional commands instruct Deko500 to execute specific commands only under
certain circumstances. Deko500 supports the conditional commands
if , else and
elseif .
The if command includes a test expression, which evaluates to zero (false) or non-
zero (true). A list of one or more commands, then an end command, follows the if
command:
if expression=
# commands
end
If the expression is true, Deko500 executes the commands between if and end .
The if command is often used with the else command:
if expression=
# commands
else
# commands
end
If the expression is true, Deko500 executes the commands between if and else ;
otherwise, the commands between else and end are executed.
You can introduce more conditional actions by nesting conditions…
if $a==1
type " Hello "