BSD 4_4 release

[unix-history] / usr / src / contrib / ed / ed.h

/*-
* Copyright (c) 1992, 1993
*      The Regents of the University of California.  All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Rodney Ruddock of the University of Guelph.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
*    must display the following acknowledgement:
*      This product includes software developed by the University of
*      California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
*    may be used to endorse or promote products derived from this software
*    without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*      @(#)ed.h        8.1 (Berkeley) 5/31/93
*/

#define FILENAME_LEN    PATH_MAX
#define JMP_SET         (int)0
#define INTERUPT        (int)1
#define HANGUP          (int)2
#define SIGINT_ACTION   longjmp(ctrl_position, INTERUPT)
#define SIGINT_ALACTION longjmp(ctrl_position2, INTERUPT)
#define SIGINT_ILACTION longjmp(ctrl_position3, INTERUPT)
#define SIGHUP_ACTION   longjmp(ctrl_position, HANGUP)
#define NN_MAX_START    510
#ifndef STDIN_FILENO
#define STDIN_FILENO 0
#endif
#ifndef STDOUT_FILENO
#define STDOUT_FILENO 1
#endif

typedef struct A {
       struct A *above, *below;
#ifdef STDIO
       long handle;
#endif
#ifdef DBI
       recno_t handle;
#endif
#ifdef MEMORY
       char *handle;
#endif
       size_t len;
} LINE;

struct MARK {
       LINE *address;
};

struct u_layer {
       LINE *val, **cell;
       struct u_layer *below;
};

struct d_layer {
       LINE *begin, *end;
       struct d_layer *next;
};

extern int nn_max, nn_max_flag, Start_default, End_default, address_flag;
extern LINE *nn_max_start, *nn_max_end, *Start, *End, *current;
extern char *text, *prompt_string, help_msg[];
extern LINE **gut;
extern struct MARK mark_matrix[];
extern char *filename_current, *buf;
extern int zsnum;  /* z sticky number */
extern LINE *top, *bottom; /* ...of the buffer */
extern int ss, explain_flag, name_set, exit_code;
extern int filename_flag, add_flag, join_flag, gut_num;
extern long change_flag;
extern int pat_err, flag, g_flag, GV_flag, printsfx;

#ifdef STDIO
extern FILE *fhtmp;
extern int file_seek;
extern char *template;
#endif

#ifdef DBI
extern DB *dbhtmp;
extern char *template;
#endif

extern struct u_layer *u_stk;
extern LINE *u_current, *u_top, *u_bottom;
extern int u_set, line_length;
extern struct d_layer *d_stk;

extern int sigint_flag, sighup_flag, sigspecial, sigspecial2, sigspecial3;
extern jmp_buf ctrl_position, ctrl_position2, ctrl_position3;

#define RE_SEC 10
extern regex_t RE_comp;
extern regmatch_t RE_match[];
extern int RE_sol, RE_flag;
extern char *RE_patt;