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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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