CLCS
Function

make-string-input-stream

make-string-input-stream string &optional start end ⇒ string-stream

Arguments and Values

stringa string.
start, endbounding index designators of string. The defaults for start and end are 0 and nil, respectively.
string-streaman input string stream.

Description

Returns an input string stream. This stream will supply, in order, the characters in the substring of string bounded by start and end. After the last character has been supplied, the string stream will then be at end of file.

Examples

 (let ((string-stream (make-string-input-stream "1 one ")))
   (list (read string-stream nil nil)
         (read string-stream nil nil)
         (read string-stream nil nil)))
⇒  (1 ONE NIL)

 (read (make-string-input-stream "prefixtargetsuffix" 6 12)) ⇒  TARGET