ed.h revision 100616
1/* $Header: /src/pub/tcsh/ed.h,v 3.33 2002/07/06 22:28:13 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. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33#ifndef _h_ed 34#define _h_ed 35 36#ifndef EXTERN 37# define EXTERN extern 38#endif 39 40#define TABSIZE 8 /* usually 8 spaces/tab */ 41#define MAXMACROLEVELS 10 /* max number of nested kbd macros */ 42 43#ifndef WINNT_NATIVE 44# define NT_NUM_KEYS 256 45#endif /* WINNT_NATIVE */ 46 47/****************************************************************************/ 48/* stuff for the different states returned by the character editor routines */ 49/****************************************************************************/ 50 51#define CCRETVAL char /* size needed for the different char editor */ 52 /* return values */ 53 54#define KEYCMD unsigned char /* size needed to index into CcFuncTbl */ 55 /* Must be unsigned */ 56 57typedef CCRETVAL(*PFCmd) __P((int)); /* pointer to function returning CCRETVAL */ 58 59struct KeyFuncs { /* for the "bind" shell command */ 60 char *name; /* function name for bind command */ 61 int func; /* function numeric value */ 62 char *desc; /* description of function */ 63}; 64 65extern PFCmd CcFuncTbl[]; /* table of available commands */ 66extern KEYCMD CcKeyMap[]; /* keymap table, each index into above tbl */ 67extern KEYCMD CcAltMap[]; /* Alt keymap table */ 68extern KEYCMD CcEmacsMap[]; /* keymap table for Emacs default bindings */ 69extern KEYCMD CcViCmdMap[]; /* for Vi command mode defaults */ 70extern struct KeyFuncs FuncNames[]; /* string names vs. CcFuncTbl indices */ 71 72extern KEYCMD NumFuns; /* number of KEYCMDs in above table */ 73 74#define CC_ERROR 100 /* there should NOT be 100 different... */ 75#define CC_FATAL 101 /* fatal error: inconsistant, must 76 * reset */ 77#define CC_NORM 0 78#define CC_NEWLINE 1 79#define CC_EOF 2 80#define CC_COMPLETE 3 81#define CC_LIST_CHOICES 4 82#define CC_LIST_GLOB 5 83#define CC_EXPAND_GLOB 6 84#define CC_HELPME 9 85#define CC_CORRECT 10 86#define CC_WHICH 11 87#define CC_ARGHACK 12 88#define CC_CORRECT_L 13 89#define CC_REFRESH 14 90#define CC_EXPAND_VARS 15 91#define CC_NORMALIZE_PATH 16 92#define CC_LIST_ALL 17 93#define CC_COMPLETE_ALL 18 94#define CC_COMPLETE_FWD 19 95#define CC_COMPLETE_BACK 20 96#define CC_NORMALIZE_COMMAND 21 97 98typedef struct { 99 Char *buf; 100 int len; 101} CStr; 102 103typedef union Xmapval { /* value passed to the Xkey routines */ 104 KEYCMD cmd; 105 CStr str; 106} XmapVal; 107 108#define XK_NOD -1 /* Internal tree node */ 109#define XK_CMD 0 /* X-key was an editor command */ 110#define XK_STR 1 /* X-key was a string macro */ 111#define XK_EXE 2 /* X-key was a unix command */ 112 113/****************************/ 114/* Editor state and buffers */ 115/****************************/ 116 117EXTERN KEYCMD *CurrentKeyMap; /* current command key map */ 118EXTERN int inputmode; /* insert, replace, replace1 mode */ 119EXTERN Char GettingInput; /* true if getting an input line (mostly) */ 120EXTERN Char NeedsRedraw; /* for editor and twenex error messages */ 121EXTERN Char InputBuf[INBUFSIZE]; /* the real input data */ 122EXTERN Char *LastChar, *Cursor; /* point to the next open space */ 123EXTERN Char *InputLim; /* limit of size of InputBuf */ 124EXTERN Char MetaNext; /* flags for ^V and ^[ functions */ 125EXTERN Char AltKeyMap; /* Using alternative command map (for vi mode) */ 126EXTERN Char VImode; /* true if running in vi mode (PWP 6-27-88) */ 127EXTERN Char *Mark; /* the emacs "mark" (dot is Cursor) */ 128EXTERN Char DoingArg; /* true if we have an argument */ 129EXTERN int Argument; /* "universal" argument value */ 130EXTERN KEYCMD LastCmd; /* previous command executed */ 131EXTERN CStr *KillRing; /* kill ring */ 132EXTERN int KillRingMax; /* max length of kill ring */ 133EXTERN int KillRingLen; /* current length of kill ring */ 134EXTERN int KillPos; /* points to next kill */ 135EXTERN int YankPos; /* points to next yank */ 136 137EXTERN Char UndoBuf[INBUFSIZE]; 138EXTERN Char *UndoPtr; 139EXTERN int UndoSize; 140EXTERN int UndoAction; 141 142EXTERN Char HistBuf[INBUFSIZE]; /* history buffer */ 143EXTERN Char *LastHist; /* points to end of history buffer */ 144EXTERN int Hist_num; /* what point up the history we are at now. */ 145EXTERN Char WhichBuf[INBUFSIZE]; /* buffer for which command */ 146EXTERN Char *LastWhich; /* points to end of which buffer */ 147EXTERN Char *CursWhich; /* points to the cursor point in which buf */ 148EXTERN int HistWhich; /* Hist_num is saved in this */ 149EXTERN char Expand; /* true if we are expanding a line */ 150extern Char HistLit; /* true if history lines are shown literal */ 151EXTERN Char CurrentHistLit; /* Literal status of current show history line */ 152 153/* 154 * These are truly extern 155 */ 156extern int MacroLvl; 157 158EXTERN Char *KeyMacro[MAXMACROLEVELS]; 159 160EXTERN Char **Display; /* display buffer seed vector */ 161EXTERN int CursorV, /* real cursor vertical (line) */ 162 CursorH, /* real cursor horisontal (column) */ 163 TermV, /* number of real screen lines 164 * (sizeof(DisplayBuf) / width */ 165 TermH; /* screen width */ 166EXTERN Char **Vdisplay; /* new buffer */ 167 168/* Variables that describe terminal ability */ 169EXTERN int T_Lines, T_Cols; /* Rows and Cols of the terminal */ 170EXTERN Char T_CanIns; /* true if I can insert characters */ 171EXTERN Char T_CanDel; /* dito for delete characters */ 172EXTERN Char T_Tabs; /* true if tty interface is passing tabs */ 173EXTERN Char T_Margin; 174#define MARGIN_AUTO 1 /* term has auto margins */ 175#define MARGIN_MAGIC 2 /* concept glitch */ 176EXTERN speed_t T_Speed; /* Tty input Baud rate */ 177EXTERN Char T_CanCEOL; /* true if we can clear to end of line */ 178EXTERN Char T_CanUP; /* true if this term can do reverse linefeen */ 179EXTERN Char T_HasMeta; /* true if we have a meta key */ 180 181/* note the extra characters in the Strchr() call in this macro */ 182#define isword(c) (Isalpha(c)||Isdigit(c)||Strchr(word_chars,c)) 183#define min(x,y) (((x)<(y))?(x):(y)) 184#define max(x,y) (((x)>(y))?(x):(y)) 185 186#define MODE_INSERT 0 187#define MODE_REPLACE 1 188#define MODE_REPLACE_1 2 189 190#define EX_IO 0 /* while we are executing */ 191#define ED_IO 1 /* while we are editing */ 192#define TS_IO 2 /* new mode from terminal */ 193#define QU_IO 2 /* used only for quoted chars */ 194#define NN_IO 3 /* The number of entries */ 195 196#if defined(POSIX) || defined(TERMIO) 197# define M_INPUT 0 198# define M_OUTPUT 1 199# define M_CONTROL 2 200# define M_LINED 3 201# define M_CHAR 4 202# define M_NN 5 203#else /* GSTTY */ 204# define M_CONTROL 0 205# define M_LOCAL 1 206# define M_CHAR 2 207# define M_NN 3 208#endif /* TERMIO */ 209typedef struct { 210 char *t_name; 211 int t_setmask; 212 int t_clrmask; 213} ttyperm_t[NN_IO][M_NN]; 214 215extern ttyperm_t ttylist; 216#include "ed.term.h" 217#include "ed.decls.h" 218 219#endif /* _h_ed */ 220