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