lisp file i/o

C언어로 치면 feopn() / fclose() / fseek() / fread()

xlisp.exe의 경로에 생성됨.
ubuntu의 clisp는 실행된 "현재경로"에 생성됨.

> (setq out-stream (open "my-temp-file"))                     error: file does not exist - "my-temp-file"                   1> (setq out-stream (open "my-temp-file" :direction :output)) #<Character-Output-Stream 4:"my-temp-file">                   1> (close out-stream)                                         t                                                             1> (setq out-stream (open "my-temp-file"))                    #<Character-Input-Stream 4:"my-temp-file">                    1> (close out-stream)                                         t                                                             1>                                                             [링크 : http://psg.com/~dlamkins/sl/chapter03-11.html]

open a file stream (open <fname> &key :direction :element-type :if-exists :if-does-not-exist) close a file stream (close <stream>) check for existance of a file (probe-file <fname>) delete a file (delete-file <fname>) get length of file (file-length <stream>) get or set file position (file-position <stream> [<expr>]) read a byte from a stream (read-byte <stream>[<eofp>[<eof>]]) write a byte to a stream (write-byte <byte> <stream>)