X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~mdw/git/lisp/blobdiff_plain/512c44e0714c4f1375e8c585b67951644fcf5268..b3bc37457df55c92cabc8aeeb42bc67d3fb8af12:/collect.lisp

diff --git a/collect.lisp b/collect.lisp
index 5fc1cb9..28986e0 100644
--- a/collect.lisp
+++ b/collect.lisp
@@ -37,10 +37,10 @@   (defun make-collector ()
 
 (defmacro collecting (vars &body body)
   "Collect items into lists.  The VARS are a list of collection variables --
-their values are unspecified, except that they may be passed to `collect' and
-`collect-tail'  If VARS is empty then *collecting-anon-list-name* is used.
-VARS may be an atom instead of a singleton list.  The form produces multiple
-values, one for each list constructed."
+   their values are unspecified, except that they may be passed to `collect'
+   and `collect-tail' If VARS is empty then *collecting-anon-list-name* is
+   used.  VARS may be an atom instead of a singleton list.  The form produces
+   multiple values, one for each list constructed."
   (cond ((null vars) (setf vars (list *collecting-anon-list-name*)))
 	((atom vars) (setf vars (list vars))))
   `(let ,(mapcar (lambda (v) `(,v (make-collector))) vars)
@@ -49,15 +49,15 @@ (defmacro collecting (vars &body body)
 
 (defmacro with-collection (vars collection &body body)
   "Collect items into lists VARS according to the form COLLECTION; then
-evaluate BODY with VARS bound to those lists."
+   evaluate BODY with VARS bound to those lists."
   `(multiple-value-bind
-       ,(listify vars)
+   ,(listify vars)
        (collecting ,vars ,collection)
      ,@body))
 
 (defmacro collect (x &optional (name *collecting-anon-list-name*))
   "Add item X to the `collecting' list NAME (or *collecting-anon-list-name*
-by default)."
+   by default)."
   (with-gensyms tmp
     `(let ((,tmp (cons ,x nil)))
        (setf (cddr ,name) ,tmp)
@@ -65,8 +65,8 @@ (defmacro collect (x &optional (name *collecting-anon-list-name*))
 
 (defmacro collect-tail (x &optional (name *collecting-anon-list-name*))
   "Make item X be the tail of `collecting' list NAME (or
-*collecting-anon-list-name* by default).  It is an error to continue trying
-to add stuff to the list."
+   *collecting-anon-list-name* by default).  It is an error to continue
+   trying to add stuff to the list."
   `(progn
      (setf (cddr ,name) ,x)
      (setf (cdr ,name) nil)))