-;;; print.lisp ---
+;;; print.lisp ---
;; Copyright (C) 2012, 2013 David Vazquez
;; Copyright (C) 2012 Raimon Grau
;;; Printer
-(defun prin1-to-string (form)
+(defvar *print-escape* t)
+
+(defun write-to-string (form)
(cond
((symbolp form)
(multiple-value-bind (symbol foundp)
((integerp form) (integer-to-string form))
((floatp form) (float-to-string form))
((characterp form)
- (concat "#\\"
+ (concat "#\\"
(case form
(#\newline "newline")
(#\space "space")
(concat "#<FUNCTION>"))))
((listp form)
(concat "("
- (join-trailing (mapcar #'prin1-to-string (butlast form)) " ")
+ (join-trailing (mapcar #'write-to-string (butlast form)) " ")
(let ((last (last form)))
(if (null (cdr last))
- (prin1-to-string (car last))
- (concat (prin1-to-string (car last)) " . " (prin1-to-string (cdr last)))))
+ (write-to-string (car last))
+ (concat (write-to-string (car last)) " . " (write-to-string (cdr last)))))
")"))
((arrayp form)
(concat "#" (if (zerop (length form))
"()"
- (prin1-to-string (vector-to-list form)))))
+ (write-to-string (vector-to-list form)))))
((packagep form)
(concat "#<PACKAGE " (package-name form) ">"))
(t
(concat "#<javascript object>"))))
+(defun prin1-to-string (form)
+ (let ((*print-escape* t))
+ (write-to-string form)))
+
+(defun princ-to-string (form)
+ (let ((*print-escape* nil))
+ (write-to-string form)))
+
(defun write-line (x)
(write-string x)
(write-string *newline*)
(defun print (x)
(write-line (prin1-to-string x))
x)
+
+(defun format (destination fmt &rest args)
+ (let ((len (length fmt))
+ (i 0)
+ (res "")
+ (arguments args))
+ (while (< i len)
+ (let ((c (char fmt i)))
+ (if (char= c #\~)
+ (let ((next (char fmt (incf i))))
+ (cond
+ ((char= next #\~)
+ (setq res (concat res "~")))
+ ((char= next #\%)
+ (setq res (concat res *newline*)))
+ (t
+ (setq res (concat res (format-special next (car arguments))))
+ (setq arguments (cdr arguments)))))
+ (setq res (concat res (char-to-string c))))
+ (incf i)))
+ (if destination
+ (progn
+ (write-string res)
+ nil)
+ res)))
+
+
+(defun format-special (chr arg)
+ (case chr
+ (#\S (prin1-to-string arg))
+ (#\a (princ-to-string arg))))