ed.h revision 59243
1/* $Header: /src/pub/tcsh/ed.h,v 3.28 1998/11/24 18:17:21 christos Exp $ */ 2/* 3 * ed.h: Editor declarations and globals 4 */ 5/*- 6 * Copyright (c) 1980, 1991 The Regents of the University of California. 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed by the University of 20 * California, Berkeley and its contributors. 21 * 4. Neither the name of the University nor the names of its contributors 22 * may be used to endorse or promote products derived from this software 23 * without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35 * SUCH DAMAGE. 36 */ 37#ifndef _h_ed 38#define _h_ed 39 40#ifndef EXTERN 41# define EXTERN extern 42#endif 43 44#define TABSIZE 8 /* usually 8 spaces/tab */ 45#define MAXMACROLEVELS 10 /* max number of nested kbd macros */ 46 47#ifndef WINNT 48# define NT_NUM_KEYS 256 49#endif /* WINNT */ 50 51extern int errno; 52 53/****************************************************************************/ 54/* stuff for the different states returned by the character editor routines */ 55/****************************************************************************/ 56 57#define CCRETVAL char /* size needed for the different char editor */ 58 /* return values */ 59 60#define KEYCMD unsigned char /* size needed to index into CcFuncTbl */ 61 /* Must be unsigned */ 62 63typedef CCRETVAL(*PFCmd) __P((int)); /* pointer to function returning CCRETVAL */ 64 65struct KeyFuncs { /* for the "bind" shell command */ 66 char *name; /* function name for bind command */ 67 int func; /* function numeric value */ 68 char *desc; /* description of function */ 69}; 70 71extern PFCmd CcFuncTbl[]; /* table of available commands */ 72extern KEYCMD CcKeyMap[]; /* keymap table, each index into above tbl */ 73extern KEYCMD CcAltMap[]; /* Alt keymap table */ 74extern KEYCMD CcEmacsMap[]; /* keymap table for Emacs default bindings */ 75extern KEYCMD CcViCmdMap[]; /* for Vi command mode defaults */ 76extern struct KeyFuncs FuncNames[]; /* string names vs. CcFuncTbl indices */ 77 78extern KEYCMD NumFuns; /* number of KEYCMDs in above table */ 79 80#define CC_ERROR 100 /* there should NOT be 100 different... */ 81#define CC_FATAL 101 /* fatal error: inconsistant, must 82 * reset */ 83#define CC_NORM 0 84#define CC_NEWLINE 1 85#define CC_EOF 2 86#define CC_COMPLETE 3 87#define CC_LIST_CHOICES 4 88#define CC_LIST_GLOB 5 89#define CC_EXPAND_GLOB 6 90#define CC_HELPME 9 91#define CC_CORRECT 10 92#define CC_WHICH 11 93#define CC_ARGHACK 12 94#define CC_CORRECT_L 13 95#define CC_REFRESH 14 96#define CC_EXPAND_VARS 15 97#define CC_NORMALIZE_PATH 16 98#define CC_LIST_ALL 17 99#define CC_COMPLETE_ALL 18 100#define CC_COMPLETE_FWD 19 101#define CC_COMPLETE_BACK 20 102#define CC_NORMALIZE_COMMAND 21 103 104typedef struct { 105 Char *buf; 106 int len; 107} CStr; 108 109typedef union Xmapval { /* value passed to the Xkey routines */ 110 KEYCMD cmd; 111 CStr str; 112} XmapVal; 113 114#define XK_NOD -1 /* Internal tree node */ 115#define XK_CMD 0 /* X-key was an editor command */ 116#define XK_STR 1 /* X-key was a string macro */ 117#define XK_EXE 2 /* X-key was a unix command */ 118 119/****************************/ 120/* Editor state and buffers */ 121/****************************/ 122 123EXTERN KEYCMD *CurrentKeyMap; /* current command key map */ 124EXTERN int inputmode; /* insert, replace, replace1 mode */ 125EXTERN Char GettingInput; /* true if getting an input line (mostly) */ 126EXTERN Char NeedsRedraw; /* for editor and twenex error messages */ 127EXTERN Char InputBuf[INBUFSIZE]; /* the real input data */ 128EXTERN Char *LastChar, *Cursor; /* point to the next open space */ 129EXTERN Char *InputLim; /* limit of size of InputBuf */ 130EXTERN Char MetaNext; /* flags for ^V and ^[ functions */ 131EXTERN Char AltKeyMap; /* Using alternative command map (for vi mode) */ 132EXTERN Char VImode; /* true if running in vi mode (PWP 6-27-88) */ 133EXTERN Char *Mark; /* the emacs "mark" (dot is Cursor) */ 134EXTERN Char DoingArg; /* true if we have an argument */ 135EXTERN int Argument; /* "universal" argument value */ 136EXTERN KEYCMD LastCmd; /* previous command executed */ 137EXTERN Char KillBuf[INBUFSIZE]; /* kill buffer */ 138EXTERN Char *LastKill; /* points to end of kill buffer */ 139 140EXTERN Char UndoBuf[INBUFSIZE]; 141EXTERN Char *UndoPtr; 142EXTERN int UndoSize; 143EXTERN int UndoAction; 144 145EXTERN Char HistBuf[INBUFSIZE]; /* history buffer */ 146EXTERN Char *LastHist; /* points to end of history buffer */ 147EXTERN int Hist_num; /* what point up the history we are at now. */ 148EXTERN Char WhichBuf[INBUFSIZE]; /* buffer for which command */ 149EXTERN Char *LastWhich; /* points to end of which buffer */ 150EXTERN Char *CursWhich; /* points to the cursor point in which buf */ 151EXTERN int HistWhich; /* Hist_num is saved in this */ 152EXTERN char Expand; /* true if we are expanding a line */ 153extern Char HistLit; /* true if history lines are shown literal */ 154EXTERN Char CurrentHistLit; /* Literal status of current show history line */ 155 156/* 157 * These are truly extern 158 */ 159extern int MacroLvl; 160 161EXTERN Char *KeyMacro[MAXMACROLEVELS]; 162 163EXTERN Char **Display; /* display buffer seed vector */ 164EXTERN int CursorV, /* real cursor vertical (line) */ 165 CursorH, /* real cursor horisontal (column) */ 166 TermV, /* number of real screen lines 167 * (sizeof(DisplayBuf) / width */ 168 TermH; /* screen width */ 169EXTERN Char **Vdisplay; /* new buffer */ 170 171/* Variables that describe terminal ability */ 172EXTERN int T_Lines, T_Cols; /* Rows and Cols of the terminal */ 173EXTERN Char T_CanIns; /* true if I can insert characters */ 174EXTERN Char T_CanDel; /* dito for delete characters */ 175EXTERN Char T_Tabs; /* true if tty interface is passing tabs */ 176EXTERN Char T_Margin; 177#define MARGIN_AUTO 1 /* term has auto margins */ 178#define MARGIN_MAGIC 2 /* concept glitch */ 179EXTERN speed_t T_Speed; /* Tty input Baud rate */ 180EXTERN Char T_CanCEOL; /* true if we can clear to end of line */ 181EXTERN Char T_CanUP; /* true if this term can do reverse linefeen */ 182EXTERN Char T_HasMeta; /* true if we have a meta key */ 183 184/* note the extra characters in the Strchr() call in this macro */ 185#define isword(c) (Isalpha(c)||Isdigit(c)||Strchr(word_chars,c)) 186#define min(x,y) (((x)<(y))?(x):(y)) 187#define max(x,y) (((x)>(y))?(x):(y)) 188 189/* 190 * Terminal dependend data structures 191 */ 192typedef struct { 193#ifdef WINNT 194 int dummy; 195#else /* !WINNT */ 196# if defined(POSIX) || defined(TERMIO) 197# ifdef POSIX 198 struct termios d_t; 199# else 200 struct termio d_t; 201# endif /* POSIX */ 202# else /* SGTTY */ 203# ifdef TIOCGETP 204 struct sgttyb d_t; 205# endif /* TIOCGETP */ 206# ifdef TIOCGETC 207 struct tchars d_tc; 208# endif /* TIOCGETC */ 209# ifdef TIOCGPAGE 210 struct ttypagestat d_pc; 211# endif /* TIOCGPAGE */ 212# ifdef TIOCLGET 213 int d_lb; 214# endif /* TIOCLGET */ 215# endif /* POSIX || TERMIO */ 216# ifdef TIOCGLTC 217 struct ltchars d_ltc; 218# endif /* TIOCGLTC */ 219#endif /* WINNT */ 220} ttydata_t; 221 222#define MODE_INSERT 0 223#define MODE_REPLACE 1 224#define MODE_REPLACE_1 2 225 226#define EX_IO 0 /* while we are executing */ 227#define ED_IO 1 /* while we are editing */ 228#define TS_IO 2 /* new mode from terminal */ 229#define QU_IO 2 /* used only for quoted chars */ 230#define NN_IO 3 /* The number of entries */ 231 232#if defined(POSIX) || defined(TERMIO) 233# define M_INPUT 0 234# define M_OUTPUT 1 235# define M_CONTROL 2 236# define M_LINED 3 237# define M_CHAR 4 238# define M_NN 5 239#else /* GSTTY */ 240# define M_CONTROL 0 241# define M_LOCAL 1 242# define M_CHAR 2 243# define M_NN 3 244#endif /* TERMIO */ 245typedef struct { 246 char *t_name; 247 int t_setmask; 248 int t_clrmask; 249} ttyperm_t[NN_IO][M_NN]; 250 251extern ttyperm_t ttylist; 252#include "ed.decls.h" 253 254#endif /* _h_ed */ 255