255 lines
8.7 KiB
C
255 lines
8.7 KiB
C
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/* $Header: /src/pub/tcsh/ed.h,v 3.28 1998/11/24 18:17:21 christos Exp $ */
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/*
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* ed.h: Editor declarations and globals
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*/
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/*-
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* Copyright (c) 1980, 1991 The Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _h_ed
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#define _h_ed
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#ifndef EXTERN
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# define EXTERN extern
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#endif
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#define TABSIZE 8 /* usually 8 spaces/tab */
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#define MAXMACROLEVELS 10 /* max number of nested kbd macros */
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#ifndef WINNT
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# define NT_NUM_KEYS 256
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#endif /* WINNT */
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extern int errno;
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/****************************************************************************/
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/* stuff for the different states returned by the character editor routines */
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/****************************************************************************/
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#define CCRETVAL char /* size needed for the different char editor */
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/* return values */
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#define KEYCMD unsigned char /* size needed to index into CcFuncTbl */
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/* Must be unsigned */
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typedef CCRETVAL(*PFCmd) __P((int)); /* pointer to function returning CCRETVAL */
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struct KeyFuncs { /* for the "bind" shell command */
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char *name; /* function name for bind command */
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int func; /* function numeric value */
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char *desc; /* description of function */
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};
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extern PFCmd CcFuncTbl[]; /* table of available commands */
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extern KEYCMD CcKeyMap[]; /* keymap table, each index into above tbl */
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extern KEYCMD CcAltMap[]; /* Alt keymap table */
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extern KEYCMD CcEmacsMap[]; /* keymap table for Emacs default bindings */
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extern KEYCMD CcViCmdMap[]; /* for Vi command mode defaults */
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extern struct KeyFuncs FuncNames[]; /* string names vs. CcFuncTbl indices */
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extern KEYCMD NumFuns; /* number of KEYCMDs in above table */
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#define CC_ERROR 100 /* there should NOT be 100 different... */
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#define CC_FATAL 101 /* fatal error: inconsistant, must
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* reset */
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#define CC_NORM 0
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#define CC_NEWLINE 1
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#define CC_EOF 2
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#define CC_COMPLETE 3
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#define CC_LIST_CHOICES 4
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#define CC_LIST_GLOB 5
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#define CC_EXPAND_GLOB 6
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#define CC_HELPME 9
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#define CC_CORRECT 10
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#define CC_WHICH 11
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#define CC_ARGHACK 12
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#define CC_CORRECT_L 13
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#define CC_REFRESH 14
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#define CC_EXPAND_VARS 15
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#define CC_NORMALIZE_PATH 16
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#define CC_LIST_ALL 17
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#define CC_COMPLETE_ALL 18
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#define CC_COMPLETE_FWD 19
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#define CC_COMPLETE_BACK 20
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#define CC_NORMALIZE_COMMAND 21
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typedef struct {
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Char *buf;
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int len;
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} CStr;
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typedef union Xmapval { /* value passed to the Xkey routines */
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KEYCMD cmd;
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CStr str;
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} XmapVal;
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#define XK_NOD -1 /* Internal tree node */
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#define XK_CMD 0 /* X-key was an editor command */
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#define XK_STR 1 /* X-key was a string macro */
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#define XK_EXE 2 /* X-key was a unix command */
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/****************************/
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/* Editor state and buffers */
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/****************************/
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EXTERN KEYCMD *CurrentKeyMap; /* current command key map */
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EXTERN int inputmode; /* insert, replace, replace1 mode */
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EXTERN Char GettingInput; /* true if getting an input line (mostly) */
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EXTERN Char NeedsRedraw; /* for editor and twenex error messages */
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EXTERN Char InputBuf[INBUFSIZE]; /* the real input data */
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EXTERN Char *LastChar, *Cursor; /* point to the next open space */
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EXTERN Char *InputLim; /* limit of size of InputBuf */
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EXTERN Char MetaNext; /* flags for ^V and ^[ functions */
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EXTERN Char AltKeyMap; /* Using alternative command map (for vi mode) */
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EXTERN Char VImode; /* true if running in vi mode (PWP 6-27-88) */
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EXTERN Char *Mark; /* the emacs "mark" (dot is Cursor) */
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EXTERN Char DoingArg; /* true if we have an argument */
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EXTERN int Argument; /* "universal" argument value */
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EXTERN KEYCMD LastCmd; /* previous command executed */
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EXTERN Char KillBuf[INBUFSIZE]; /* kill buffer */
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EXTERN Char *LastKill; /* points to end of kill buffer */
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EXTERN Char UndoBuf[INBUFSIZE];
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EXTERN Char *UndoPtr;
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EXTERN int UndoSize;
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EXTERN int UndoAction;
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EXTERN Char HistBuf[INBUFSIZE]; /* history buffer */
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EXTERN Char *LastHist; /* points to end of history buffer */
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EXTERN int Hist_num; /* what point up the history we are at now. */
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EXTERN Char WhichBuf[INBUFSIZE]; /* buffer for which command */
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EXTERN Char *LastWhich; /* points to end of which buffer */
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EXTERN Char *CursWhich; /* points to the cursor point in which buf */
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EXTERN int HistWhich; /* Hist_num is saved in this */
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EXTERN char Expand; /* true if we are expanding a line */
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extern Char HistLit; /* true if history lines are shown literal */
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EXTERN Char CurrentHistLit; /* Literal status of current show history line */
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/*
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* These are truly extern
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*/
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extern int MacroLvl;
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EXTERN Char *KeyMacro[MAXMACROLEVELS];
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EXTERN Char **Display; /* display buffer seed vector */
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EXTERN int CursorV, /* real cursor vertical (line) */
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CursorH, /* real cursor horisontal (column) */
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TermV, /* number of real screen lines
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* (sizeof(DisplayBuf) / width */
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TermH; /* screen width */
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EXTERN Char **Vdisplay; /* new buffer */
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/* Variables that describe terminal ability */
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EXTERN int T_Lines, T_Cols; /* Rows and Cols of the terminal */
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EXTERN Char T_CanIns; /* true if I can insert characters */
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EXTERN Char T_CanDel; /* dito for delete characters */
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EXTERN Char T_Tabs; /* true if tty interface is passing tabs */
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EXTERN Char T_Margin;
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#define MARGIN_AUTO 1 /* term has auto margins */
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#define MARGIN_MAGIC 2 /* concept glitch */
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EXTERN speed_t T_Speed; /* Tty input Baud rate */
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EXTERN Char T_CanCEOL; /* true if we can clear to end of line */
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EXTERN Char T_CanUP; /* true if this term can do reverse linefeen */
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EXTERN Char T_HasMeta; /* true if we have a meta key */
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/* note the extra characters in the Strchr() call in this macro */
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#define isword(c) (Isalpha(c)||Isdigit(c)||Strchr(word_chars,c))
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#define min(x,y) (((x)<(y))?(x):(y))
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#define max(x,y) (((x)>(y))?(x):(y))
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/*
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* Terminal dependend data structures
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*/
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typedef struct {
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#ifdef WINNT
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int dummy;
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#else /* !WINNT */
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# if defined(POSIX) || defined(TERMIO)
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# ifdef POSIX
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struct termios d_t;
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# else
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struct termio d_t;
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# endif /* POSIX */
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# else /* SGTTY */
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# ifdef TIOCGETP
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struct sgttyb d_t;
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# endif /* TIOCGETP */
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# ifdef TIOCGETC
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struct tchars d_tc;
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# endif /* TIOCGETC */
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# ifdef TIOCGPAGE
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struct ttypagestat d_pc;
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# endif /* TIOCGPAGE */
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# ifdef TIOCLGET
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int d_lb;
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# endif /* TIOCLGET */
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# endif /* POSIX || TERMIO */
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# ifdef TIOCGLTC
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struct ltchars d_ltc;
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# endif /* TIOCGLTC */
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#endif /* WINNT */
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} ttydata_t;
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#define MODE_INSERT 0
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#define MODE_REPLACE 1
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#define MODE_REPLACE_1 2
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#define EX_IO 0 /* while we are executing */
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#define ED_IO 1 /* while we are editing */
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#define TS_IO 2 /* new mode from terminal */
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#define QU_IO 2 /* used only for quoted chars */
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#define NN_IO 3 /* The number of entries */
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#if defined(POSIX) || defined(TERMIO)
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# define M_INPUT 0
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# define M_OUTPUT 1
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# define M_CONTROL 2
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# define M_LINED 3
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# define M_CHAR 4
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# define M_NN 5
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#else /* GSTTY */
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# define M_CONTROL 0
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# define M_LOCAL 1
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# define M_CHAR 2
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# define M_NN 3
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#endif /* TERMIO */
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typedef struct {
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char *t_name;
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int t_setmask;
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int t_clrmask;
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} ttyperm_t[NN_IO][M_NN];
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extern ttyperm_t ttylist;
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#include "ed.decls.h"
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#endif /* _h_ed */
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