netbsd's original tr/extern.h as tr.h

diff --git a/commands/simple/tr.h b/commands/simple/tr.h
new file mode 100644 (file)
index 0000000..b0bd04e
--- /dev/null
+++ b/commands/simple/tr.h
@@ -0,0 +1,48 @@
+/*     $NetBSD: extern.h,v 1.6 2003/08/07 11:16:46 agc Exp $   */
+
+/*-
+ * Copyright (c) 1991, 1993
+ *     The Regents of the University of California.  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.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
+ *
+ *     @(#)extern.h    8.1 (Berkeley) 6/6/93
+ */
+
+typedef struct {
+       enum { STRING1, STRING2 } which;
+       enum { EOS, INFINITE, NORMAL, RANGE, SEQUENCE, SET } state;
+       int      cnt;                   /* character count */
+       int      lastch;                /* last character */
+       int     equiv[2];               /* equivalence set */
+       int     *set;                   /* set of characters */
+       unsigned char   *str;           /* user's string */
+} STR;
+
+#include <limits.h>
+#define        NCHARS  (UCHAR_MAX + 1)         /* Number of possible characters. */
+#define        OOBCH   (UCHAR_MAX + 1)         /* Out of band character value. */
+
+int     next __P((STR *));