LI-COR LI-6400, Manual

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Programming with LPL
Functions
22-12 Using the LI-6400
22
¥
A short-cut character
They are: a, b, f, n, r, t, or "
Functions
The general form of a function definition is to follow the function name with
braces, between which are the commands that the function is to perform:
:FCT reset_all
{
Reset_menus Reset_parameters
Reset_data Reset_lists
}
The Function ÒMainÓ
An LPL program can have many functions, and the one named
Main
(if any)
is by convention the one that is executed. If there is no function named
Main
,
execution begins with the first function that was declared. Note that as far as
the operating system is concerned,
Main
(or whatever the name happens to be)
will be the ONLY function executed. If there are other functions defined in a
program, they are not executed unless they are called from
Main
, directly or
indirectly. When
Main
is finally done, the program is done.
The Stack
The stack can be thought of as a list of objects, and as new items are added to
the list, they are added to the
top , pushing all other items down. As items are
removed from the list, they are also removed from the top. Many of the built-
Table 22-7. Backslash (\) Shortcuts
Sequence Result
\a Bell character (decimal 7)
\b Back space character (decimal 8)
\f Form feed character (decimal 12)
\n Newline character (decimal 10)
\r Carriage return (decimal 13)
\t Tab character (decimal 9)
\" Double quote character (decimal 34)