history.h revision 7c2fbfb345896881c631598ee3852ce9ce33fb07
/* : : generated by proto : : */
/***********************************************************************
* *
* This software is part of the ast package *
* Copyright (c) 1982-2008 AT&T Intellectual Property *
* and is licensed under the *
* Common Public License, Version 1.0 *
* by AT&T Intellectual Property *
* *
* A copy of the License is available at *
* http://www.opensource.org/licenses/cpl1.0.txt *
* (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) *
* *
* Information and Software Systems Research *
* AT&T Research *
* Florham Park NJ *
* *
* David Korn <dgk@research.att.com> *
* *
***********************************************************************/
#ifndef HIST_VERSION
#if !defined(__PROTO__)
#include <prototyped.h>
#endif
#if !defined(__LINKAGE__)
#define __LINKAGE__ /* 2004-08-11 transition */
#endif
/*
* Interface for history mechanism
* written by David Korn
*
*/
#include <ast.h>
#define HIST_CHAR '!'
#define HIST_VERSION 1 /* history file format version no. */
typedef struct
{
Sfdisc_t histdisc; /* discipline for history */
Sfio_t *histfp; /* history file stream pointer */
char *histname; /* name of history file */
int32_t histind; /* current command number index */
int histsize; /* number of accessible history lines */
#ifdef _HIST_PRIVATE
_HIST_PRIVATE
#endif /* _HIST_PRIVATE */
} History_t;
typedef struct
{
int hist_command;
int hist_line;
int hist_char;
} Histloc_t;
/* the following are readonly */
extern __MANGLE__ const char hist_fname[];
extern __MANGLE__ int _Hist;
#define hist_min(hp) ((_Hist=((int)((hp)->histind-(hp)->histsize)))>=0?_Hist:0)
#define hist_max(hp) ((int)((hp)->histind))
/* these are the history interface routines */
extern __MANGLE__ int sh_histinit __PROTO__((__V_ *));
extern __MANGLE__ void hist_cancel __PROTO__((History_t*));
extern __MANGLE__ void hist_close __PROTO__((History_t*));
extern __MANGLE__ int hist_copy __PROTO__((char*, int, int, int));
extern __MANGLE__ void hist_eof __PROTO__((History_t*));
extern __MANGLE__ Histloc_t hist_find __PROTO__((History_t*,char*,int, int, int));
extern __MANGLE__ void hist_flush __PROTO__((History_t*));
extern __MANGLE__ void hist_list __PROTO__((History_t*,Sfio_t*, off_t, int, char*));
extern __MANGLE__ int hist_match __PROTO__((History_t*,off_t, char*, int*));
extern __MANGLE__ off_t hist_tell __PROTO__((History_t*,int));
extern __MANGLE__ off_t hist_seek __PROTO__((History_t*,int));
extern __MANGLE__ char *hist_word __PROTO__((char*, int, int));
#if SHOPT_ESH
extern __MANGLE__ Histloc_t hist_locate __PROTO__((History_t*,int, int, int));
#endif /* SHOPT_ESH */
#endif /* HIST_VERSION */