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/*
* UNDO system
* Copyright
* (C) 1992 Joseph H. Allen
*
* This file is part of JOE (Joe's Own Editor)
*/
#ifndef JUPP_UNDO_H
#define JUPP_UNDO_H
#ifdef EXTERN_B_C
__IDSTRING(rcsid_undo_h, "$MirOS: contrib/code/jupp/undo.h,v 1.6 2020/03/27 06:38:59 tg Exp $");
#endif
extern int inundo;
extern int justkilled;
UNDO *undomk(B *b);
void undorm(UNDO *undo);
int uundo(BW *bw);
int uredo(BW *bw);
void umclear(void);
void undomark(void);
void undoins(UNDO *undo, P *p, long int size);
void undodel(UNDO *undo, long int where, B *b);
int uyank(BW *bw);
int uyankpop(BW *bw);
int uyapp(BW *bw);
int unotmod(BW *bw);
int ucopy(BW *bw);
#endif
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