UniBasic Commands Reference - Rocket Software

Parameter Description
: Normally, when a user types something and presses ENTER in response
to an INPUT statement, UniData issues a line feed. The : parameter
inhibits this line feed.
,-l UniData checks the type-ahead buffer. The following values are returned
in var:
1 – Data is present in the buffer.
0 – No data is present in the type-ahead buffer.
Use the -1 parameter to periodically check for input in an application that
runs continuously.
FOR |
WAITING
time.expr
Examples
In the following example, the program segment reads the first value established by
the DATA statement and assigns it to the variable TEST. In this case, the value 10 is
read.
DATA 10,20,30,40,50
INPUT TEST
Specifies the length of time to wait for input. If you do not enter the input
before the wait period expires, var does not change, and the ELSE clause
executes. If no ELSE nor THEN clause exists, the session terminates at
the end of the wait period.
UNFILTERED Sets INPUT to capture raw characters (such as backspace, up arrow,
down arrow, or ENTER) from the keyboard.
THEN
statements
ELSE
statements
Specifies statements to execute when input is received within the time
specified in the FOR | WAITING clause and input is not an empty string.
Specifies statements to execute if no input is received by the time
specified in the FOR | WAITING clause or if the input is an empty string.
INPUT Parameters (continued)
In the next example, the program statement prints the prompt “Enter name:”. The
INPUT statement then enables the user to enter any number of characters, stopping
only when the user presses ENTER. The first 10 characters the user enters are
assigned to the variable NAME.
PRINT "Enter name: "; INPUT NAME,10_
INPUT 1-384