1 files changed, 0 insertions, 68 deletions
diff --git a/share/txr/stdlib/txr-case.tl b/share/txr/stdlib/txr-case.tl
deleted file mode 100644
index 5a507fb1..00000000
--- a/share/txr/stdlib/txr-case.tl
+++ /dev/null
@@ -1,68 +0,0 @@
-;; Copyright 2015-2020
-;; Kaz Kylheku <kaz@kylheku.com>
-;; Vancouver, Canada
-;; All rights reserved.
-;;
-;; Redistribution and use in source and binary forms, with or without
-;; modification, are permitted provided that the following conditions are met:
-;;
-;; 1. Redistributions of source code must retain the above copyright notice, this
-;;    list of conditions and the following disclaimer.
-;;
-;; 2. Redistributions in binary form must reproduce the above copyright notice,
-;;    this list of conditions and the following disclaimer in the documentation
-;;    and/or other materials provided with the distribution.
-;;
-;; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
-;; ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-;; WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-;; DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
-;; FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-;; DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
-;; SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
-;; CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-;; OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-;; OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-(defmacro txr-if (name args input : then else)
-  (let ((syms (keep-if [andf true symbolp [notf keywordp] [notf (op eq t)]]
-                       args))
-        (arg-exprs [mapcar [iffi symbolp (ret ^',@1)] args])
-        (result (gensym "res-"))
-        (bindings (gensym "bindings-"))
-        (insym (gensym "input-")))
-    ^(let* ((,insym ,input)
-            (,result (match-fun ',name (list ,*arg-exprs)
-                                (if (stringp ,insym) (list ,insym) ,insym)
-                                nil)))
-       (if ,result
-         (let ((,bindings (car ,result)))
-           (let (,*[mapcar (ret ^(,@1 (cdr (assoc ',@1 ,bindings))))
-                           syms])
-             ,then))
-         ,else))))
-
-(defmacro txr-when (name args input . body)
-  ^(txr-if ,name ,args ,input (progn ,*body)))
-
-(defmacro txr-case-impl (:form f sym . clauses)
-  (tree-case clauses
-    (((name args . body) . other-clauses)
-     (if (eq name t) :
-       ^(txr-if ,name ,args ,sym
-          (progn ,*body)
-          (txr-case-impl ,sym ,*other-clauses))))
-    (((sym . rest) . other-clauses)
-     (if (eq sym t)
-       (if other-clauses
-         (compile-error f "clauses after (t ...) clause ignored")
-         ^(progn ,*rest))
-       (compile-error f "bad syntax: ~s" (car clauses))))
-    (() ())
-    (atom
-       (compile-error f "unexpected atom in syntax: ~s" atom))))
-
-(defmacro txr-case (input-expr . clauses)
-  (let ((input (gensym "input-")))
-    ^(let ((,input ,input-expr))
-       (txr-case-impl ,input ,*clauses))))