contrib/tcsh-6/ed.h

   1 /* $Header: /p/tcsh/cvsroot/tcsh/ed.h,v 3.50 2007/07/05 14:13:06 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 MAXMACROLEVELS  10      /* max number of nested kbd macros */
  41
  42 #ifndef WINNT_NATIVE
  43 # define NT_NUM_KEYS    256
  44 #endif /* WINNT_NATIVE */
  45
  46 #ifdef __QNXNTO__
  47 #undef min
  48 #undef max
  49 #endif
  50
  51 /****************************************************************************/
  52 /* stuff for the different states returned by the character editor routines */
  53 /****************************************************************************/
  54
  55 #define CCRETVAL        char    /* size needed for the different char editor */
  56  /* return values */
  57
  58 #define KEYCMD   unsigned char  /* size needed to index into CcFuncTbl */
  59  /* Must be unsigned                   */
  60
  61 typedef CCRETVAL(*PFCmd) (Char); /* pointer to function returning CCRETVAL */
  62
  63 struct KeyFuncs {               /* for the "bind" shell command */
  64     const char *name;           /* function name for bind command */
  65     int     func;               /* function numeric value */
  66     const char *desc;           /* description of function */
  67 };
  68
  69 extern PFCmd CcFuncTbl[];       /* table of available commands */
  70 extern KEYCMD CcKeyMap[];       /* keymap table, each index into above tbl */
  71 extern KEYCMD CcAltMap[];       /* Alt keymap table */
  72 extern KEYCMD CcEmacsMap[];     /* keymap table for Emacs default bindings */
  73 extern KEYCMD CcViCmdMap[];     /* for Vi command mode defaults */
  74 extern struct KeyFuncs FuncNames[];     /* string names vs. CcFuncTbl indices */
  75
  76 extern KEYCMD NumFuns;          /* number of KEYCMDs in above table */
  77
  78 #define CC_ERROR                100     /* there should NOT be 100 different... */
  79 #define CC_FATAL                101     /* fatal error: inconsistant, must
  80                                          * reset */
  81 #define CC_NORM                 0
  82 #define CC_NEWLINE              1
  83 #define CC_EOF                  2
  84 #define CC_COMPLETE             3
  85 #define CC_LIST_CHOICES         4
  86 #define CC_LIST_GLOB            5
  87 #define CC_EXPAND_GLOB          6
  88 #define CC_HELPME               9
  89 #define CC_CORRECT              10
  90 #define CC_WHICH                11
  91 #define CC_ARGHACK              12
  92 #define CC_CORRECT_L            13
  93 #define CC_REFRESH              14
  94 #define CC_EXPAND_VARS          15
  95 #define CC_NORMALIZE_PATH       16
  96 #define CC_LIST_ALL             17
  97 #define CC_COMPLETE_ALL         18
  98 #define CC_COMPLETE_FWD         19
  99 #define CC_COMPLETE_BACK        20
 100 #define CC_NORMALIZE_COMMAND    21
 101
 102 typedef struct {
 103     Char *buf;
 104     int   len;
 105 } CStr;
 106
 107 typedef union {         /* value passed to the Xkey routines */
 108     KEYCMD cmd;
 109     CStr str;
 110 } XmapVal;
 111
 112 #define XK_NOD  -1              /* Internal tree node */
 113 #define XK_CMD   0              /* X-key was an editor command */
 114 #define XK_STR   1              /* X-key was a string macro */
 115 #define XK_EXE   2              /* X-key was a unix command */
 116
 117 /****************************/
 118 /* Editor state and buffers */
 119 /****************************/
 120
 121 EXTERN KEYCMD *CurrentKeyMap;   /* current command key map */
 122 EXTERN int inputmode;           /* insert, replace, replace1 mode */
 123 EXTERN Char GettingInput;       /* true if getting an input line (mostly) */
 124 EXTERN Char NeedsRedraw;        /* for editor and twenex error messages */
 125 EXTERN Char InputBuf[INBUFSIZE];        /* the real input data *//*FIXBUF*/
 126 EXTERN Char *LastChar, *Cursor; /* point to the next open space */
 127 EXTERN Char *InputLim;          /* limit of size of InputBuf */
 128 EXTERN Char MetaNext;           /* flags for ^V and ^[ functions */
 129 EXTERN Char AltKeyMap;          /* Using alternative command map (for vi mode) */
 130 EXTERN Char VImode;             /* true if running in vi mode (PWP 6-27-88) */
 131 EXTERN Char *Mark;              /* the emacs "mark" (dot is Cursor) */
 132 EXTERN char MarkIsSet;          /* true if the mark has been set explicitly */
 133 EXTERN Char DoingArg;           /* true if we have an argument */
 134 EXTERN int Argument;            /* "universal" argument value */
 135 EXTERN KEYCMD LastCmd;          /* previous command executed */
 136 EXTERN CStr *KillRing;          /* kill ring */
 137 EXTERN int KillRingMax;         /* max length of kill ring */
 138 EXTERN int KillRingLen;         /* current length of kill ring */
 139 EXTERN int KillPos;             /* points to next kill */
 140 EXTERN int YankPos;             /* points to next yank */
 141
 142 EXTERN Char UndoBuf[INBUFSIZE];/*FIXBUF*/
 143 EXTERN Char *UndoPtr;
 144 EXTERN int  UndoSize;
 145 EXTERN int  UndoAction;
 146
 147 EXTERN struct Strbuf HistBuf; /* = Strbuf_INIT; history buffer */
 148 EXTERN int Hist_num;            /* what point up the history we are at now. */
 149 /* buffer for which command and others */
 150 EXTERN struct Strbuf SavedBuf; /* = Strbuf_INIT; */
 151 EXTERN size_t LastSaved;        /* points to end of saved buffer */
 152 EXTERN size_t CursSaved;        /* points to the cursor point in saved buf */
 153 EXTERN int HistSaved;           /* Hist_num is saved in this */
 154 EXTERN char RestoreSaved;       /* true if SavedBuf should be restored */
 155 EXTERN int IncMatchLen;         /* current match length during incremental search */
 156 EXTERN char Expand;             /* true if we are expanding a line */
 157 extern Char HistLit;            /* true if history lines are shown literal */
 158 EXTERN Char CurrentHistLit;     /* Literal status of current show history line */
 159 extern int Tty_raw_mode;
 160
 161 /*
 162  * These are truly extern
 163  */
 164 extern int MacroLvl;
 165 extern Char *litptr;     /* Entries start at offsets divisible by LIT_FACTOR */
 166 #define LIT_FACTOR 4
 167 extern int didsetty;
 168
 169 EXTERN Char *KeyMacro[MAXMACROLEVELS];
 170
 171 /* CHAR_DBWIDTH in Display and Vdisplay means the non-first column of a character
 172    that is wider than one "regular" position. The cursor should never point
 173    in the middle of a multiple-column character. */
 174 EXTERN Char **Display;          /* display buffer seed vector */
 175 EXTERN int CursorV,             /* real cursor vertical (line) */
 176         CursorH,                /* real cursor horisontal (column) */
 177         TermV,                  /* number of real screen lines
 178                                  * (sizeof(DisplayBuf) / width */
 179         TermH;                  /* screen width */
 180 EXTERN Char **Vdisplay; /* new buffer */
 181
 182 /* Variables that describe terminal ability */
 183 EXTERN int T_Lines, T_Cols;     /* Rows and Cols of the terminal */
 184 EXTERN Char T_CanIns;           /* true if I can insert characters */
 185 EXTERN Char T_CanDel;           /* dito for delete characters */
 186 EXTERN char T_Tabs;             /* true if tty interface is passing tabs */
 187 EXTERN char T_Margin;
 188 #define MARGIN_AUTO  1          /* term has auto margins */
 189 #define MARGIN_MAGIC 2          /* concept glitch */
 190 EXTERN speed_t T_Speed;         /* Tty input Baud rate */
 191 EXTERN Char T_CanCEOL;          /* true if we can clear to end of line */
 192 EXTERN Char T_CanUP;            /* true if this term can do reverse linefeen */
 193 EXTERN char T_HasMeta;          /* true if we have a meta key */
 194
 195 /* note the extra characters in the Strchr() call in this macro */
 196 #define isword(c)       (Isalpha(c)||Isdigit(c)||Strchr(word_chars,c))
 197 #define min(x,y)        (((x)<(y))?(x):(y))
 198 #define max(x,y)        (((x)>(y))?(x):(y))
 199
 200 #define MODE_INSERT     0
 201 #define MODE_REPLACE    1
 202 #define MODE_REPLACE_1  2
 203
 204 #define EX_IO   0       /* while we are executing       */
 205 #define ED_IO   1       /* while we are editing         */
 206 #define TS_IO   2       /* new mode from terminal       */
 207 #define QU_IO   2       /* used only for quoted chars   */
 208 #define NN_IO   3       /* The number of entries        */
 209
 210 #if defined(POSIX) || defined(TERMIO)
 211 # define M_INPUT        0
 212 # define M_OUTPUT       1
 213 # define M_CONTROL      2
 214 # define M_LINED        3
 215 # define M_CHAR         4
 216 # define M_NN           5
 217 #else /* GSTTY */
 218 # define M_CONTROL      0
 219 # define M_LOCAL        1
 220 # define M_CHAR         2
 221 # define M_NN           3
 222 #endif /* TERMIO */
 223 typedef struct {
 224     const char *t_name;
 225     unsigned int  t_setmask;
 226     unsigned int  t_clrmask;
 227 } ttyperm_t[NN_IO][M_NN];
 228
 229 extern ttyperm_t ttylist;
 230 #include "ed.term.h"
 231 #include "ed.decls.h"
 232
 233 #ifndef POSIX
 234 /*
 235  * We don't prototype these, cause some systems have them wrong!
 236  */
 237 extern int   tgetent    ();
 238 extern char *tgetstr    ();
 239 extern int   tgetflag   ();
 240 extern int   tgetnum    ();
 241 extern char *tgoto      ();
 242 # define PUTPURE putpure
 243 # define PUTRAW putraw
 244 #else
 245 extern int   tgetent    (char *, const char *);
 246 extern char *tgetstr    (const char *, char **);
 247 extern int   tgetflag   (const char *);
 248 extern int   tgetnum    (const char *);
 249 extern char *tgoto      (const char *, int, int);
 250 extern void  tputs      (const char *, int, void (*)(int));
 251 # define PUTPURE ((void (*)(int)) putpure)
 252 # define PUTRAW ((void (*)(int)) putraw)
 253 #endif
 254
 255 #endif /* _h_ed */