Add local CLEAR macro in READ-FORMS

code/read.lisp

@@ -127,12 +127,12 @@
           ;; the cache residue and cache suffix that are now before
           ;; the current stream position.
           unless (eq kind :whitespace)
-            do (loop for residue = (residue cache)
-                     while (and (not (null residue))
-                                (position< (first residue) analyzer))
-                     do (pop-from-residue cache))
-               (when (null (residue cache))
-                 (loop for suffix = (suffix cache)
-                       while (and (not (null suffix))
-                                  (position< (first suffix) analyzer))
-                       do (pop-from-suffix cache))))))
+            do (macrolet ((clear (reader popper)
+                            `(loop :for remaining = (,reader cache)
+                                   :while (and (not (null remaining))
+                                               (position< (first remaining)
+                                                          analyzer))
+                                   :do (,popper cache))))
+                 (clear residue pop-from-residue)
+                 (when (null (residue cache))
+                   (clear suffix pop-from-suffix))))))