write-string, write-line (original) (raw)

ANSI Common Lisp 21 Streams 21.2 Dictionary of Streams

Syntax:

write-string string &optional output-stream &key start end string

write-line string &optional output-stream &key start end string

Arguments and Values:

string - a string.

output-stream -- an output stream designator. The default is standard output.

start, end - bounding index designators of string. The defaults for start and end are 0 and nil, respectively.

Description:

write-string writes the characters of the subsequence of string bounded by start and _end_to output-stream.write-line does the same thing, but then outputs a newline afterwards.

Examples:

(prog1 (write-string "books" nil :end 4) (write-string "worms")) bookworms "books" (progn (write-char #*) (write-line "test12" standard-output :end 5) (write-line "*test2") (write-char #*) nil) *test1 test2 NIL

Affected By:

*standard-output*,*terminal-io*.

See Also:

read-line, write-char

Notes:

write-line and write-string return string, not the substring bounded by start and end.

(write-string string) ==(dotimes (i (length string) (write-char (char string i)))

(write-line string) ==(prog1 (write-string string) (terpri))

Allegro CL Implementation Details:

None.