ipc/ip.h

   1 /*-
   2  * Copyright (c) 1996
   3  *      Keith Bostic.  All rights reserved.
   4  *
   5  * See the LICENSE file for redistribution information.
   6  *
   7  *      $Id: ip.h,v 8.21 2000/06/24 18:54:50 skimo Exp $ (Berkeley) $Date: 2000/06/24 18:54:50 $
   8  */
   9
  10 extern int vi_ifd;              /* Input file descriptor. */
  11 extern int vi_ofd;              /* Output file descriptor. */
  12
  13 typedef struct _ip_private {
  14         int      i_fd;          /* Input file descriptor. */
  15         int      o_fd;          /* Output file descriptor. */
  16
  17         int      argc;
  18         char    **argv;
  19
  20         size_t   row;           /* Current row. */
  21         size_t   col;           /* Current column. */
  22
  23         db_recno_t       sb_total;      /* scrollbar: total lines in file. */
  24         db_recno_t       sb_top;        /* scrollbar: top line on screen. */
  25         size_t   sb_num;        /* scrollbar: number of lines on screen. */
  26
  27         size_t   iblen;         /* Input buffer length. */
  28         size_t   iskip;         /* Returned input buffer. */
  29         char     ibuf[256];     /* Input buffer. */
  30
  31 #define IP_SCR_VI_INIT  0x0001  /* Vi screen initialized. */
  32         u_int32_t flags;
  33 } IP_PRIVATE;
  34
  35 #define IPP(sp)         ((IP_PRIVATE *)((sp)->gp->ip_private))
  36 #define GIPP(gp)        ((IP_PRIVATE *)((gp)->ip_private))
  37
  38 /* The screen line relative to a specific window. */
  39 #define RLNO(sp, lno)   (sp)->roff + (lno)
  40 #define RCNO(sp, cno)   (sp)->coff + (cno)
  41
  42 #define IPO_CODE_LEN    1       /* Length of a code value. */
  43 #define IPO_INT_LEN     4       /* Length of an integer. */
  44
  45 /* A structure that can hold the information for any frame. */
  46 typedef struct _ip_buf {
  47         int code;               /* Event code. */
  48         const char *str1;       /* String #1. */
  49         u_int32_t len1;         /* String #1 length. */
  50         const char *str2;       /* String #1. */
  51         u_int32_t len2;         /* String #1 length. */
  52         u_int32_t val1;         /* Value #1. */
  53         u_int32_t val2;         /* Value #2. */
  54         u_int32_t val3;         /* Value #3. */
  55 } IP_BUF;
  56
  57 /*
  58  * Screen/editor IP_CODE's.
  59  *
  60  * The program structure depends on the event loop being able to return
  61  * IPO_EOF/IPO_ERR multiple times -- eventually enough things will end
  62  * due to the events that vi will reach the command level for the screen,
  63  * at which point the exit flags will be set and vi will exit.
  64  *
  65  * IP events sent from the screen to vi.
  66  */
  67 #define CODE_OOB         0      /* Illegal code. */
  68 #define VI_C_BOL         1      /* Cursor to start of line. */
  69 #define VI_C_BOTTOM      2      /* Cursor to bottom. */
  70 #define VI_C_DEL         3      /* Cursor delete. */
  71 #define VI_C_DOWN        4      /* Cursor down N lines: IPO_INT. */
  72 #define VI_C_EOL         5      /* Cursor to end of line. */
  73 #define VI_C_INSERT      6      /* Cursor: enter insert mode. */
  74 #define VI_C_LEFT        7      /* Cursor left. */
  75 #define VI_C_PGDOWN      8      /* Cursor down N pages: IPO_INT. */
  76 #define VI_C_PGUP        9      /* Cursor up N lines: IPO_INT. */
  77 #define VI_C_RIGHT      10      /* Cursor right. */
  78 #define VI_C_SEARCH     11      /* Cursor: search: IPO_INT, IPO_STR. */
  79 #define VI_C_SETTOP     12      /* Cursor: set screen top line: IPO_INT. */
  80 #define VI_C_TOP        13      /* Cursor to top. */
  81 #define VI_C_UP         14      /* Cursor up N lines: IPO_INT. */
  82 #define VI_EDIT         15      /* Edit a file: IPO_STR. */
  83 #define VI_EDITOPT      16      /* Edit option: 2 * IPO_STR, IPO_INT. */
  84 #define VI_EDITSPLIT    17      /* Split to a file: IPO_STR. */
  85 #define VI_EOF          18      /* End of input (NOT ^D). */
  86 #define VI_ERR          19      /* Input error. */
  87 #define VI_INTERRUPT    20      /* Interrupt. */
  88 #define VI_MOUSE_MOVE   21      /* Mouse click move: IPO_INT, IPO_INT. */
  89 #define VI_QUIT         22      /* Quit. */
  90 #define VI_RESIZE       23      /* Screen resize: IPO_INT, IPO_INT. */
  91 #define VI_SEL_END      24      /* Select end: IPO_INT, IPO_INT. */
  92 #define VI_SEL_START    25      /* Select start: IPO_INT, IPO_INT. */
  93 #define VI_SIGHUP       26      /* SIGHUP. */
  94 #define VI_SIGTERM      27      /* SIGTERM. */
  95 #define VI_STRING       28      /* Input string: IPO_STR. */
  96 #define VI_TAG          29      /* Tag. */
  97 #define VI_TAGAS        30      /* Tag to a string: IPO_STR. */
  98 #define VI_TAGSPLIT     31      /* Split to a tag. */
  99 #define VI_UNDO         32      /* Undo. */
 100 #define VI_WQ           33      /* Write and quit. */
 101 #define VI_WRITE        34      /* Write. */
 102 #define VI_WRITEAS      35      /* Write as another file: IPO_STR. */
 103
 104 #define VI_SEARCH_EXT   0x001   /* VI_C_SEARCH: ignore case. */
 105 #define VI_SEARCH_IC    0x002   /* VI_C_SEARCH: ignore case. */
 106 #define VI_SEARCH_ICL   0x004   /* VI_C_SEARCH: ignore case if lower-case. */
 107 #define VI_SEARCH_INCR  0x008   /* VI_C_SEARCH: incremental search. */
 108 #define VI_SEARCH_LIT   0x010   /* VI_C_SEARCH: literal string. */
 109 #define VI_SEARCH_REV   0x020   /* VI_C_SEARCH: reverse direction. */
 110 #define VI_SEARCH_WR    0x040   /* VI_C_SEARCH: wrap at sof/eof. */
 111
 112 /*
 113  * IP events sent from vi to the screen.
 114  */
 115 #define SI_ADDSTR        1      /* Add a string: IPO_STR. */
 116 #define SI_ATTRIBUTE     2      /* Set screen attribute: 2 * IPO_INT. */
 117 #define SI_BELL          3      /* Beep/bell/flash the terminal. */
 118 #define SI_BUSY_OFF      4      /* Display a busy message: IPO_STR. */
 119 #define SI_BUSY_ON       5      /* Display a busy message: IPO_STR. */
 120 #define SI_CLRTOEOL      6      /* Clear to the end of the line. */
 121 #define SI_DELETELN      7      /* Delete a line. */
 122 #define SI_DISCARD       8      /* Discard the screen. */
 123 #define SI_EDITOPT       9      /* Edit option: 2 * IPO_STR, IPO_INT. */
 124 #define SI_INSERTLN     10      /* Insert a line. */
 125 #define SI_MOVE         11      /* Move the cursor: 2 * IPO_INT. */
 126 #define SI_QUIT         12      /* Quit. */
 127 #define SI_REDRAW       13      /* Redraw the screen. */
 128 #define SI_REFRESH      14      /* Refresh the screen. */
 129 #define SI_RENAME       15      /* Rename the screen: IPO_STR. */
 130 #define SI_REPLY        16      /* Reply: IPO_INT (0/1), IPO_STR. */
 131 #define SI_REWRITE      17      /* Rewrite a line: IPO_INT. */
 132 #define SI_SCROLLBAR    18      /* Reset the scrollbar: 3 * IPO_INT. */
 133 #define SI_SELECT       19      /* Select area: IPO_STR. */
 134 #define SI_SPLIT        20      /* Split the screen. */
 135 #define SI_EVENT_MAX    20
 136
 137 #include "extern.h"