1
2/* : : generated by proto : : */
3/***********************************************************************
4*                                                                      *
5*               This software is part of the ast package               *
6*          Copyright (c) 1982-2010 AT&T Intellectual Property          *
7*                      and is licensed under the                       *
8*                  Common Public License, Version 1.0                  *
9*                    by AT&T Intellectual Property                     *
10*                                                                      *
11*                A copy of the License is available at                 *
12*            http://www.opensource.org/licenses/cpl1.0.txt             *
13*         (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9)         *
14*                                                                      *
15*              Information and Software Systems Research               *
16*                            AT&T Research                             *
17*                           Florham Park NJ                            *
18*                                                                      *
19*                  David Korn <dgk@research.att.com>                   *
20*                                                                      *
21***********************************************************************/
22
23#ifndef HIST_VERSION
24#if !defined(__PROTO__)
25#include <prototyped.h>
26#endif
27#if !defined(__LINKAGE__)
28#define __LINKAGE__		/* 2004-08-11 transition */
29#endif
30
31/*
32 *	Interface for history mechanism
33 *	written by David Korn
34 *
35 */
36
37#include	<ast.h>
38
39#define HIST_CHAR	'!'
40#define HIST_VERSION	1		/* history file format version no. */
41
42typedef struct
43{
44	Sfdisc_t	histdisc;	/* discipline for history */
45	Sfio_t		*histfp;	/* history file stream pointer */
46	char		*histname;	/* name of history file */
47	int32_t		histind;	/* current command number index */
48	int		histsize;	/* number of accessible history lines */
49#ifdef _HIST_PRIVATE
50	_HIST_PRIVATE
51#endif /* _HIST_PRIVATE */
52} History_t;
53
54typedef struct
55{
56	int hist_command;
57	int hist_line;
58	int hist_char;
59} Histloc_t;
60
61/* the following are readonly */
62extern __MANGLE__ const char	hist_fname[];
63
64extern __MANGLE__ int _Hist;
65#define	hist_min(hp)	((_Hist=((int)((hp)->histind-(hp)->histsize)))>=0?_Hist:0)
66#define	hist_max(hp)	((int)((hp)->histind))
67/* these are the history interface routines */
68extern __MANGLE__ int		sh_histinit __PROTO__((__V_ *));
69extern __MANGLE__ void 		hist_cancel __PROTO__((History_t*));
70extern __MANGLE__ void 		hist_close __PROTO__((History_t*));
71extern __MANGLE__ int		hist_copy __PROTO__((char*, int, int, int));
72extern __MANGLE__ void 		hist_eof __PROTO__((History_t*));
73extern __MANGLE__ Histloc_t	hist_find __PROTO__((History_t*,char*,int, int, int));
74extern __MANGLE__ void 		hist_flush __PROTO__((History_t*));
75extern __MANGLE__ void 		hist_list __PROTO__((History_t*,Sfio_t*, off_t, int, char*));
76extern __MANGLE__ int		hist_match __PROTO__((History_t*,off_t, char*, int*));
77extern __MANGLE__ off_t		hist_tell __PROTO__((History_t*,int));
78extern __MANGLE__ off_t		hist_seek __PROTO__((History_t*,int));
79extern __MANGLE__ char 		*hist_word __PROTO__((char*, int, int));
80#if SHOPT_ESH
81    extern __MANGLE__ Histloc_t	hist_locate __PROTO__((History_t*,int, int, int));
82#endif	/* SHOPT_ESH */
83
84#endif /* HIST_VERSION */
85