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diff --git a/libtecla-1.4.1/keytab.h b/libtecla-1.4.1/keytab.h
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+#ifndef keytab_h
+#define keytab_h
+
+/*
+ * Copyright (c) 2000, 2001 by Martin C. Shepherd.
+ * 
+ * All rights reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, and/or sell copies of the Software, and to permit persons
+ * to whom the Software is furnished to do so, provided that the above
+ * copyright notice(s) and this permission notice appear in all copies of
+ * the Software and that both the above copyright notice(s) and this
+ * permission notice appear in supporting documentation.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
+ * OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
+ * INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
+ * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
+ * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
+ * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ * 
+ * Except as contained in this notice, the name of a copyright holder
+ * shall not be used in advertising or otherwise to promote the sale, use
+ * or other dealings in this Software without prior written authorization
+ * of the copyright holder.
+ */
+
+#include "libtecla.h"
+#include "hash.h"
+#include "strngmem.h"
+
+/*-----------------------------------------------------------------------*
+ * This module defines a binary-search symbol table of key-bindings.     *
+ *-----------------------------------------------------------------------*/
+
+/*
+ * All key-binding functions are defined as follows.
+ *
+ * Input:
+ *  gl    GetLine *  The resource object of this library.
+ *  count     int    A positive repeat count specified by the user,
+ *                   or 1. Action functions should ignore this if
+ *                   repeating the action multiple times isn't
+ *                   appropriate.
+ * Output:
+ *  return    int    0 - OK.
+ *                   1 - Error.
+ */
+#define KT_KEY_FN(fn) int (fn)(GetLine *gl, int count)
+
+typedef KT_KEY_FN(KtKeyFn);
+
+/*
+ * Define an entry of a key-binding binary symbol table.
+ */
+typedef struct {
+  char *keyseq;         /* The key sequence that triggers the macro */
+  int nc;               /* The number of characters in keyseq[] */
+  KtKeyFn *user_fn;     /* A user specified binding (or 0 if none) */
+  KtKeyFn *term_fn;     /* A terminal-specific binding (or 0 if none) */
+  KtKeyFn *norm_fn;     /* The default binding (or 0 if none) */
+  KtKeyFn *keyfn;       /* The function to execute when this key sequence */
+                        /*  is seen. This is the function above which has */
+                        /*  the highest priority. */
+} KeySym;
+
+/*
+ * When allocating or reallocating the key-binding table, how
+ * many entries should be added?
+ */
+#define KT_TABLE_INC 100
+
+/*
+ * Define the size of the hash table that is used to associate action
+ * names with action functions. This should be a prime number.
+ */
+#define KT_HASH_SIZE 113
+
+/*
+ * Define a binary-symbol-table object.
+ */
+typedef struct {
+  int size;           /* The allocated dimension of table[] */
+  int nkey;           /* The current number of members in the table */
+  KeySym *table;      /* The table of lexically sorted key sequences */
+  HashTable *actions; /* The hash table of actions */
+  StringMem *smem;    /* Memory for allocating strings */
+} KeyTab;
+
+KeyTab *_new_KeyTab(void);
+KeyTab *_del_KeyTab(KeyTab *kt);
+
+/*
+ * Enumerate the possible sources of key-bindings.
+ */
+typedef enum {
+  KTB_USER,         /* This is a binding being set by the user */
+  KTB_TERM,         /* This is a binding taken from the terminal settings */
+  KTB_NORM          /* This is the default binding set by the library */
+} KtBinder;
+
+int _kt_set_keybinding(KeyTab *kt, KtBinder binder,
+		       const char *keyseq, const char *action);
+int _kt_set_keyfn(KeyTab *kt, KtBinder binder, const char *keyseq,
+		  KtKeyFn *keyfn);
+
+int _kt_set_action(KeyTab *kt, const char *action, KtKeyFn *fn);
+
+typedef enum {
+  KT_EXACT_MATCH,   /* An exact match was found */
+  KT_AMBIG_MATCH,   /* An ambiguous match was found */
+  KT_NO_MATCH,      /* No match was found */
+  KT_BAD_MATCH      /* An error occurred while searching */
+} KtKeyMatch;
+
+KtKeyMatch _kt_lookup_keybinding(KeyTab *kt, const char *binary_keyseq,
+				 int nc, int *first,int *last);
+
+/*
+ * Remove all key bindings that came from a specified source.
+ */
+void _kt_clear_bindings(KeyTab *kt, KtBinder binder);
+
+/*
+ * When installing an array of keybings each binding is defined by
+ * an element of the following type:
+ */
+typedef struct {
+  const char *keyseq;   /* The sequence of keys that trigger this binding */
+  const char *action;   /* The name of the action function that is triggered */
+} KtKeyBinding;
+
+/*
+ * Merge an array of bindings with existing bindings.
+ */
+int _kt_add_bindings(KeyTab *kt, KtBinder binder, const KtKeyBinding *bindings,
+		     unsigned n);
+
+#endif