Initial revision

diff --git a/v7/src/microcode/comlin.c b/v7/src/microcode/comlin.c
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diff --git a/v7/src/microcode/comlin.h b/v7/src/microcode/comlin.h
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+/* -*-C-*-
+
+Copyright (c) 1987 Massachusetts Institute of Technology
+
+This material was developed by the Scheme project at the Massachusetts
+Institute of Technology, Department of Electrical Engineering and
+Computer Science.  Permission to copy this software, to redistribute
+it, and to use it for any purpose is granted, subject to the following
+restrictions and understandings.
+
+1. Any copy made of this software must include this copyright notice
+in full.
+
+2. Users of this software agree to make their best efforts (a) to
+return to the MIT Scheme project any improvements or extensions that
+they make, so that these may be included in future releases; and (b)
+to inform MIT of noteworthy uses of this software.
+
+3. All materials developed as a consequence of the use of this
+software shall duly acknowledge such use, in accordance with the usual
+standards of acknowledging credit in academic research.
+
+4. MIT has made no warrantee or representation that the operation of
+this software will be error-free, and MIT is under no obligation to
+provide any services, by way of maintenance, update, or otherwise.
+
+5. In conjunction with products arising from the use of this material,
+there shall be no use of the name of the Massachusetts Institute of
+Technology nor of any adaptation thereof in any advertising,
+promotional, or sales literature without prior written consent from
+MIT in each case. */
+
+/* $Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/microcode/comlin.h,v 1.1 1988/02/10 16:06:31 jinx Rel $
+ *
+ * This file contains definitions for the scheme command parser.
+ *
+ */
+\f
+#ifndef boolean
+#define boolean        int
+#define true   1
+#define false  0
+#endif
+
+typedef char *string;
+
+/* Argument List Keyword Descriptor Structure */
+
+#define LAST_KYWRD     0
+#define BOOLEAN_KYWRD  1
+#define INT_KYWRD      2
+#define DOUBLE_KYWRD   3
+#define STRING_KYWRD   4
+
+#define BOOLEAN_LVALUE(struc)  ((boolean *) ((struc).data))
+#define INT_LVALUE(struc)      ((int *) ((struc).data))
+#define DOUBLE_LVALUE(struc)   ((double *) ((struc).data))
+#define STRING_LVALUE(struc)   ((string *) ((struc).data))
+
+struct keyword_struct
+{
+  int          type_tag;
+  string       keyword;
+  long         *data;
+  string       format;
+  boolean      *supplied_p;
+};
+
+#define KEYWORD(str, var, type, format, sup)                           \
+{                                                                      \
+  type,                                                                        \
+  ((string) str),                                                      \
+  ((long *) var),                                                      \
+  format,                                                              \
+  sup                                                                  \
+}
+
+#define END_KEYWORD()  KEYWORD("", NULL, LAST_KYWRD, NULL, NULL)
+
+/* Fake boolean and string formats */
+
+#define BFRMT  ((string) NULL)
+#define SFRMT  ((string) NULL)
+
+/* Exports */
+
+extern char *program_name;
+
+extern void parse_keywords();
+