From: jsancho <devnull@localhost>
Date: Mon, 9 Nov 2009 19:13:14 +0000 (+0000)
Subject: (no commit message)
X-Git-Url: https://git.jsancho.org/?a=commitdiff_plain;h=d1022020ba95506abae1fa0ec131a62f12c6cd81;p=gacela.git

---

diff --git a/gacela_misc.lisp b/gacela_misc.lisp
index a3991d5..16e8ab8 100755
--- a/gacela_misc.lisp
+++ b/gacela_misc.lisp
@@ -68,6 +68,15 @@
 			(t (power (* p 2) n)))))
 	  (power 1 n)))
 
+(defmacro secured-eval (form &optional output-stream)
+  `(let ((error-handler #'si::universal-error-handler)
+	 (result-eval))
+     (defun si::universal-error-handler (error-name correctable function-name continue-format-string error-format-string &rest args)
+       ,(when output-stream `(format ,output-stream error-format-string)))
+     (setq result-eval (eval ,form))
+     (setf (symbol-function 'si::universal-error-handler) error-handler)
+     result-eval))
+
 ;Geometry
 (defun dotp (dot)
   (match-pattern dot '(0 0)))