![]() ![]() It returns the next character to be read from input-stream, without actually removing it from the input stream. Peek-char & optional peek-type input-stream eof-error-p eof-value recursive-p It puts the character most recently read from the input-stream, onto the front of input-stream. Unread-char character & optional input-stream It takes one character from input-stream and returns it as a character object. Read-char & optional input-stream eof-error-p eof-value recursive-p It reads in a line of text terminated by a newline. Read-line & optional input-stream eof-error-p eof-value recursive-p It is used in some specialized situations where it is desirable to determine precisely what character terminated the extended token. Read-preserving-whitespace & optional in-stream eof-error-p eof-value recursive-p It reads in the printed representation of a Lisp object from input-stream, builds a corresponding Lisp object, and returns the object. Read & optional input-stream eof-error-p eof-value recursive-p The following table provides the most commonly used input functions of LISP − Sr.No. In this section, we will look into some of the most commonly used input-output functions provided in LISP. We have already used the format function, and print function for output. Common LISP provides numerous input-output functions. ![]()
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