Add mes and mescc-tools-extra

mescc-tools-extra contains two important tools:
- cp
- chmod

mes first builds itself from a mes 0.21 seed as used by guix, and then
builds a mes 0.22 and then mes 0.22 using that created mes 0.22.

It does /not/ use bootstrap.sh as we don't have a proper shell at this
point, it has been manually adapted for kaem.

sysa/mes-0.22/tests/match.test

@@ -0,0 +1,119 @@
+#! /bin/sh
+# -*-scheme-*-
+exec ${MES-bin/mes} --no-auto-compile -L ${0%/*} -L module -C module -e '(tests match)' -s "$0" "$@"
+!#
+
+;;; -*-scheme-*-
+
+;;; GNU Mes --- Maxwell Equations of Software
+;;; Copyright © 2016,2018 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
+;;;
+;;; This file is part of GNU Mes.
+;;;
+;;; GNU Mes is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Mes is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Mes.  If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (tests match)
+  #:use-module (mes mes-0)
+  #:use-module (mes test))
+
+(mes-use-module (mes match))
+(mes-use-module (mes test))
+
+(cond-expand
+ (guile
+  (use-modules (ice-9 match)))
+  (mes))
+
+(pass-if "first dummy" #t)
+(pass-if-not "second dummy" #f)
+
+(pass-if "match symbol"
+  (seq?
+   (match 'bla
+     ('bla 'bla))
+   'bla))
+
+(pass-if "match no symbol"
+  (sequal?
+   (match 'foo
+     ('bla 'bla)
+     (_ "no match: foo"))
+   "no match: foo"))
+
+(pass-if "match symbol?"
+  (seq?
+   (match 'foo
+     ((? symbol?) 'symbol)
+     (_ "no match: symbol")
+     )
+   'symbol))
+
+(pass-if "match list"
+  (sequal?
+   (match '(0)
+     ((0) '(0))
+     (_ "no match: (0)"))
+   '(0)))
+
+(pass-if "match list 2"
+  (sequal?
+   (match (list 1 2 3) ((1 b c) (list b c)))
+   '(2 3)))
+
+(pass-if "match unquote"
+  (sequal?
+   (match (list 1 2 3) (`(1 ,b ,c) (list b c)))
+   '(2 3)))
+
+(pass-if "match x-hygiene"
+  (seq?
+   (match '(0 1 2)
+     ((0 x y) (+ x y))
+     (_ "no match: 0 1 2"))
+   3))
+
+(pass-if "match ellipsis"
+  (sequal?
+   (match '(1 2)
+     ((t ...) t)
+     (_ "no match: (1 2)"))
+   '(1 2)))
+
+(pass-if-equal "match nyacc 0"
+               '(rest)
+               (match '(first rest)
+                 ((first . rest)
+                  rest)))
+
+(pass-if-equal "match nyacc 1"
+               '(#\. rest)
+               (match '(first #\. rest)
+                 (('first . rest)
+                  rest)))
+
+(let ((tkl0-simple '((ident . type) rest)))
+  (pass-if-equal "match nyacc simple"
+                 (cons (cdar tkl0-simple) (cdr tkl0-simple))
+                 (match tkl0-simple
+                   ((('ident . val) . rest)
+                    (cons val rest)))))
+
+(let ((tkl0 '((ident . "type") #\. #\] (arg . "0") #\[ (ident . "g_cells"))))
+  (pass-if-equal "match nyacc tkl0"
+                 (cdr tkl0)
+                 (match tkl0
+                   ((('ident . val) . rest)
+                    rest))))
+
+(result 'report (if mes? 2 0))