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/***********************************************************************
* *
* This software is part of the ast package *
* Copyright (c) 1982-2012 AT&T Intellectual Property *
* and is licensed under the *
* Eclipse Public License, Version 1.0 *
* by AT&T Intellectual Property *
* *
* A copy of the License is available at *
* http://www.eclipse.org/org/documents/epl-v10.html *
* (with md5 checksum b35adb5213ca9657e911e9befb180842) *
* *
* Information and Software Systems Research *
* AT&T Research *
* Florham Park NJ *
* *
* David Korn <dgk@research.att.com> *
* *
***********************************************************************/
#pragma prototyped
#ifndef SEARCHSIZE
/*
* edit.h - common data structure for vi and emacs edit options
*
* David Korn
* AT&T Labs
*
*/
#define SEARCHSIZE 80
#include "FEATURE/options"
#include "FEATURE/locale"
#if !SHOPT_VSH && !SHOPT_ESH
# define ed_winsize() (SEARCHSIZE)
#else
#if !KSHELL
# include <setjmp.h>
# include <sig.h>
# include <ctype.h>
#endif /* KSHELL */
#include "FEATURE/setjmp"
#include "terminal.h"
#define STRIP 0377
#define LOOKAHEAD 80
#if SHOPT_MULTIBYTE
# ifndef ESS_MAXCHAR
# include "national.h"
# endif /* ESS_MAXCHAR */
typedef wchar_t genchar;
# define CHARSIZE (sizeof(wchar_t)<=2?3:sizeof(wchar_t))
#else
typedef char genchar;
# define CHARSIZE 1
#endif /* SHOPT_MULTIBYTE */
#define TABSIZE 8
#define PRSIZE 160
#define MAXLINE 1024 /* longest edit line permitted */
typedef struct _edit_pos
{
unsigned short line;
unsigned short col;
} Edpos_t;
#if SHOPT_EDPREDICT
typedef struct Histmatch
{
struct Histmatch *next;
int index;
short len;
short count;
char data[1];
} Histmatch_t;
#endif /* SHOPT_EDPREDICT */
typedef struct edit
{
sigjmp_buf e_env;
int e_intr;
int e_kill;
int e_erase;
int e_werase;
int e_eof;
int e_lnext;
int e_fchar;
int e_plen; /* length of prompt string */
char e_crlf; /* zero if cannot return to beginning of line */
char e_nocrnl; /* don't put a new-line with ^L */
char e_keytrap; /* set when in keytrap */
int e_llimit; /* line length limit */
int e_hline; /* current history line number */
int e_hloff; /* line number offset for command */
int e_hismin; /* minimum history line number */
int e_hismax; /* maximum history line number */
int e_raw; /* set when in raw mode or alt mode */
int e_cur; /* current line position */
int e_eol; /* end-of-line position */
int e_pcur; /* current physical line position */
int e_peol; /* end of physical line position */
int e_mode; /* edit mode */
int e_lookahead; /* index in look-ahead buffer */
int e_repeat;
int e_saved;
int e_fcol; /* first column */
int e_ucol; /* column for undo */
int e_wsize; /* width of display window */
char *e_outbase; /* pointer to start of output buffer */
char *e_outptr; /* pointer to position in output buffer */
char *e_outlast; /* pointer to end of output buffer */
genchar *e_inbuf; /* pointer to input buffer */
char *e_prompt; /* pointer to buffer containing the prompt */
genchar *e_ubuf; /* pointer to the undo buffer */
genchar *e_killbuf; /* pointer to delete buffer */
char e_search[SEARCHSIZE]; /* search string */
genchar *e_Ubuf; /* temporary workspace buffer */
genchar *e_physbuf; /* temporary workspace buffer */
int e_lbuf[LOOKAHEAD];/* pointer to look-ahead buffer */
int e_fd; /* file descriptor */
int e_ttyspeed; /* line speed, also indicates tty parms are valid */
int e_tabcount;
#ifdef _hdr_utime
ino_t e_tty_ino;
dev_t e_tty_dev;
char *e_tty;
#endif
#if SHOPT_OLDTERMIO
char e_echoctl;
char e_tcgeta;
struct termio e_ott;
#endif
#if SHOPT_MULTIBYTE
int e_curchar;
int e_cursize;
#endif
int *e_globals; /* global variables */
genchar *e_window; /* display window image */
char e_inmacro; /* processing macro expansion */
#if KSHELL
char e_vi_insert[2]; /* for sh_keytrap */
int32_t e_col; /* for sh_keytrap */
#else
char e_prbuff[PRSIZE]; /* prompt buffer */
#endif /* KSHELL */
struct termios e_ttyparm; /* initial tty parameters */
struct termios e_nttyparm; /* raw tty parameters */
struct termios e_savetty; /* saved terminal state */
int e_savefd; /* file descriptor for saved terminal state */
char e_macro[4]; /* macro buffer */
void *e_vi; /* vi specific data */
void *e_emacs; /* emacs specific data */
Shell_t *sh; /* interpreter pointer */
char *e_stkptr; /* saved stack pointer */
int e_stkoff; /* saved stack offset */
char **e_clist; /* completion list after <ESC>= */
int e_nlist; /* number of elements on completion list */
int e_multiline; /* allow multiple lines for editing */
int e_winsz; /* columns in window */
Edpos_t e_curpos; /* cursor line and column */
Namval_t *e_default; /* variable containing default value */
Namval_t *e_term; /* TERM variable */
char e_termname[80]; /* terminal name */
#if SHOPT_EDPREDICT
Histmatch_t **hlist;
Histmatch_t *hfirst;
unsigned short nhlist;
unsigned short hoff;
unsigned short hmax;
char *hpat;
char *hstak;
#endif /* SHOPT_EDPREDICT */
} Edit_t;
#undef MAXWINDOW
#define MAXWINDOW 300 /* maximum width window */
#define FAST 2
#define SLOW 1
#define ESC cntl('[')
#define UEOF -2 /* user eof char synonym */
#define UINTR -3 /* user intr char synonym */
#define UERASE -4 /* user erase char synonym */
#define UKILL -5 /* user kill char synonym */
#define UWERASE -6 /* user word erase char synonym */
#define ULNEXT -7 /* user next literal char synonym */
#if ( 'a' == 97) /* ASCII? */
# define cntl(x) (x&037)
#else
# define cntl(c) (c=='D'?55:(c=='E'?45:(c=='F'?46:(c=='G'?'\a':(c=='H'?'\b': \
(c=='I'?'\t':(c=='J'?'\n':(c=='T'?60:(c=='U'?61:(c=='V'?50: \
(c=='W'?38:(c=='Z'?63:(c=='['?39:(c==']'?29: \
(c<'J'?c+1-'A':(c+10-'J'))))))))))))))))
#endif
#if !KSHELL
# define STRIP 0377
# define GMACS 1
# define EMACS 2
# define VIRAW 4
# define EDITVI 8
# define NOHIST 16
# define EDITMASK 15
# define is_option(m) (opt_flag&(m))
extern char opt_flag;
# ifdef SYSCALL
# define read(fd,buff,n) syscall(3,fd,buff,n)
# else
# define read(fd,buff,n) rEAd(fd,buff,n)
# endif /* SYSCALL */
#endif /* KSHELL */
extern void ed_crlf(Edit_t*);
extern void ed_putchar(Edit_t*, int);
extern void ed_ringbell(void);
extern void ed_setup(Edit_t*,int, int);
extern void ed_flush(Edit_t*);
extern int ed_getchar(Edit_t*,int);
extern int ed_virt_to_phys(Edit_t*,genchar*,genchar*,int,int,int);
extern int ed_window(void);
extern void ed_ungetchar(Edit_t*,int);
extern int ed_viread(void*, int, char*, int, int);
extern int ed_read(void*, int, char*, int, int);
extern int ed_emacsread(void*, int, char*, int, int);
extern Edpos_t ed_curpos(Edit_t*, genchar*, int, int, Edpos_t);
extern int ed_setcursor(Edit_t*, genchar*, int, int, int);
#if KSHELL
extern int ed_macro(Edit_t*,int);
extern int ed_expand(Edit_t*, char[],int*,int*,int,int);
extern int ed_fulledit(Edit_t*);
extern void *ed_open(Shell_t*);
#endif /* KSHELL */
# if SHOPT_MULTIBYTE
extern int ed_internal(const char*, genchar*);
extern int ed_external(const genchar*, char*);
extern void ed_gencpy(genchar*,const genchar*);
extern void ed_genncpy(genchar*,const genchar*,int);
extern int ed_genlen(const genchar*);
extern int ed_setwidth(const char*);
# endif /* SHOPT_MULTIBYTE */
#if SHOPT_EDPREDICT
extern int ed_histgen(Edit_t*, const char*);
extern void ed_histlist(Edit_t*, int);
#endif /* SHOPT_EDPREDICT */
extern const char e_runvi[];
#if !KSHELL
extern const char e_version[];
#endif /* KSHELL */
#if SHOPT_HISTEXPAND
/* flags */
#define HIST_EVENT 0x1 /* event designator seen */
#define HIST_QUESTION 0x2 /* question mark event designator */
#define HIST_HASH 0x4 /* hash event designator */
#define HIST_WORDDSGN 0x8 /* word designator seen */
#define HIST_QUICKSUBST 0x10 /* quick substition designator seen */
#define HIST_SUBSTITUTE 0x20 /* for substition loop */
#define HIST_NEWLINE 0x40 /* newline in squashed white space */
/* modifier flags */
#define HIST_PRINT 0x100 /* print new command */
#define HIST_QUOTE 0x200 /* quote resulting history line */
#define HIST_QUOTE_BR 0x400 /* quote every word on space break */
#define HIST_GLOBALSUBST 0x800 /* apply substition globally */
#define HIST_ERROR 0x1000 /* an error ocurred */
/* flags to be returned */
#define HIST_FLAG_RETURN_MASK (HIST_EVENT|HIST_PRINT|HIST_ERROR)
extern int hist_expand(const char *, char **);
#endif
#endif
#endif
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