X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcode%2Ftarget-format.lisp;h=df74380e35f2e42e23d7e22b9e980cc2375c472c;hb=b6ed0e20d468099b62d27095db7d18f76d8886d2;hp=91b83092db41129e2ead39e5258fed566e48068c;hpb=d6d76c98535bddabd73c6338f8393b6e698f297f;p=sbcl.git

diff --git a/src/code/target-format.lisp b/src/code/target-format.lisp
index 91b8309..df74380 100644
--- a/src/code/target-format.lisp
+++ b/src/code/target-format.lisp
@@ -78,8 +78,7 @@
                       (function
                        (typecase character
                          (base-char
-                       (svref *format-directive-interpreters*
-                              (char-code character)))
+                          (svref *format-directive-interpreters* (char-code character)))
                          (character nil)))
                       (*default-format-error-offset*
                        (1- (format-directive-end directive))))
@@ -228,12 +227,16 @@
             (prin1 (next-arg) stream)
             (write-char (next-arg) stream)))))
 
+;;; "printing" as defined in the ANSI CL glossary, which is normative.
+(defun char-printing-p (char)
+  (and (not (eql char #\Space))
+       (graphic-char-p char)))
+
 (defun format-print-named-character (char stream)
-  (let* ((name (char-name char)))
-    (cond (name
-           (write-string (string-capitalize name) stream))
-          (t
-           (write-char char stream)))))
+  (cond ((not (char-printing-p char))
+         (write-string (string-capitalize (char-name char)) stream))
+        (t
+         (write-char char stream))))
 
 (def-format-interpreter #\W (colonp atsignp params)
   (interpret-bind-defaults () params