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