lib/libedit/el.h

   1 /*      $NetBSD: el.h,v 1.25 2011/07/29 23:44:44 christos Exp $ */
   2
   3 /*-
   4  * Copyright (c) 1992, 1993
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * This code is derived from software contributed to Berkeley by
   8  * Christos Zoulas of Cornell University.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  * 3. Neither the name of the University nor the names of its contributors
  19  *    may be used to endorse or promote products derived from this software
  20  *    without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  *
  34  *      @(#)el.h        8.1 (Berkeley) 6/4/93
  35  */
  36
  37 /*
  38  * el.h: Internal structures.
  39  */
  40 #ifndef _h_el
  41 #define _h_el
  42 /*
  43  * Local defaults
  44  */
  45 #define KSHVI
  46 #define VIDEFAULT
  47 #define ANCHOR
  48
  49 #include "histedit.h"
  50 #include "chartype.h"
  51 #include <stdio.h>
  52 #include <sys/types.h>
  53
  54 #define EL_BUFSIZ       ((size_t)1024)  /* Maximum line size            */
  55
  56 #define HANDLE_SIGNALS  0x01
  57 #define NO_TTY          0x02
  58 #define EDIT_DISABLED   0x04
  59 #define UNBUFFERED      0x08
  60 #define CHARSET_IS_UTF8 0x10
  61 #define IGNORE_EXTCHARS 0x20            /* Ignore characters read > 0xff */
  62 #define NARROW_HISTORY  0x40
  63 #define NARROW_READ     0x80
  64
  65 typedef int bool_t;                     /* True or not                  */
  66
  67 typedef unsigned char el_action_t;      /* Index to command array       */
  68
  69 typedef struct coord_t {                /* Position on the screen       */
  70         int     h;
  71         int     v;
  72 } coord_t;
  73
  74 typedef struct el_line_t {
  75         Char            *buffer;        /* Input line                   */
  76         Char            *cursor;        /* Cursor position              */
  77         Char            *lastchar;      /* Last character               */
  78         const Char      *limit;         /* Max position                 */
  79 } el_line_t;
  80
  81 /*
  82  * Editor state
  83  */
  84 typedef struct el_state_t {
  85         int             inputmode;      /* What mode are we in?         */
  86         int             doingarg;       /* Are we getting an argument?  */
  87         int             argument;       /* Numeric argument             */
  88         int             metanext;       /* Is the next char a meta char */
  89         el_action_t     lastcmd;        /* Previous command             */
  90         el_action_t     thiscmd;        /* this command                 */
  91         Char            thisch;         /* char that generated it       */
  92 } el_state_t;
  93
  94 /*
  95  * Until we come up with something better...
  96  */
  97 #define el_malloc(a)    malloc(a)
  98 #define el_realloc(a,b) realloc(a, b)
  99 #define el_free(a)      free(a)
 100
 101 #include "tty.h"
 102 #include "prompt.h"
 103 #include "keymacro.h"
 104 #include "terminal.h"
 105 #include "refresh.h"
 106 #include "chared.h"
 107 #include "common.h"
 108 #include "search.h"
 109 #include "hist.h"
 110 #include "map.h"
 111 #include "parse.h"
 112 #include "sig.h"
 113 #include "help.h"
 114 #include "read.h"
 115
 116 struct editline {
 117         Char             *el_prog;      /* the program name             */
 118         FILE             *el_infile;    /* Stdio stuff                  */
 119         FILE             *el_outfile;   /* Stdio stuff                  */
 120         FILE             *el_errfile;   /* Stdio stuff                  */
 121         int               el_infd;      /* Input file descriptor        */
 122         int               el_outfd;     /* Output file descriptor       */
 123         int               el_errfd;     /* Error file descriptor        */
 124         int               el_flags;     /* Various flags.               */
 125         int               el_errno;     /* Local copy of errno          */
 126         coord_t           el_cursor;    /* Cursor location              */
 127         Char            **el_display;   /* Real screen image = what is there */
 128         Char            **el_vdisplay;  /* Virtual screen image = what we see */
 129         void             *el_data;      /* Client data                  */
 130         el_line_t         el_line;      /* The current line information */
 131         el_state_t        el_state;     /* Current editor state         */
 132         el_terminal_t     el_terminal;  /* Terminal dependent stuff     */
 133         el_tty_t          el_tty;       /* Tty dependent stuff          */
 134         el_refresh_t      el_refresh;   /* Refresh stuff                */
 135         el_prompt_t       el_prompt;    /* Prompt stuff                 */
 136         el_prompt_t       el_rprompt;   /* Prompt stuff                 */
 137         el_chared_t       el_chared;    /* Characted editor stuff       */
 138         el_map_t          el_map;       /* Key mapping stuff            */
 139         el_keymacro_t     el_keymacro;  /* Key binding stuff            */
 140         el_history_t      el_history;   /* History stuff                */
 141         el_search_t       el_search;    /* Search stuff                 */
 142         el_signal_t       el_signal;    /* Signal handling stuff        */
 143         el_read_t         el_read;      /* Character reading stuff      */
 144 #ifdef WIDECHAR
 145         ct_buffer_t       el_scratch;   /* Scratch conversion buffer    */
 146         ct_buffer_t       el_lgcyconv;  /* Buffer for legacy wrappers   */
 147         LineInfo          el_lgcylinfo; /* Legacy LineInfo buffer       */
 148 #endif
 149 };
 150
 151 protected int   el_editmode(EditLine *, int, const Char **);
 152
 153 #ifdef DEBUG
 154 #define EL_ABORT(a)     do { \
 155                                 fprintf(el->el_errfile, "%s, %d: ", \
 156                                          __FILE__, __LINE__); \
 157                                 fprintf a; \
 158                                 abort(); \
 159                         } while( /*CONSTCOND*/0);
 160 #else
 161 #define EL_ABORT(a)     abort()
 162 #endif
 163 #endif /* _h_el */