The function printout allows output to a device attached to a logical name. The logical name must be specified and the device must have been prepared previously for output (e.g., a file must be opened first). To send output to , use a for the logical name.
Syntax
(printout <logical-name> <expression>*)
Any number of expressions may be placed in a printout to be printed. Each expression is evaluated and printed (with no spaces added between each printed expression). The symbol crlf used as an <expression> will force a carriage return/newline and may be placed anywhere in the list of expressions to be printed. The printout function strips quotation marks from around strings when it prints them. Fact-addresses, instance-addresses and external-addresses can be printed by the printout function. This function has no return value.
Example
CLIPS> (printout t "Hello there!" crlf) Hello There! CLIPS> (open "data.txt" mydata "w") TRUE CLIPS> (printout mydata "red green") CLIPS> (close) TRUE CLIPS>