el.h revision 1.34
1 /* $NetBSD: el.h,v 1.34 2016/02/24 17:13:22 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 52 #define EL_BUFSIZ ((size_t)1024) /* Maximum line size */ 53 54 #define HANDLE_SIGNALS 0x01 55 #define NO_TTY 0x02 56 #define EDIT_DISABLED 0x04 57 #define UNBUFFERED 0x08 58 #define CHARSET_IS_UTF8 0x10 59 #define NARROW_HISTORY 0x40 60 61 typedef unsigned char el_action_t; /* Index to command array */ 62 63 typedef struct coord_t { /* Position on the screen */ 64 int h; 65 int v; 66 } coord_t; 67 68 typedef struct el_line_t { 69 Char *buffer; /* Input line */ 70 Char *cursor; /* Cursor position */ 71 Char *lastchar; /* Last character */ 72 const Char *limit; /* Max position */ 73 } el_line_t; 74 75 /* 76 * Editor state 77 */ 78 typedef struct el_state_t { 79 int inputmode; /* What mode are we in? */ 80 int doingarg; /* Are we getting an argument? */ 81 int argument; /* Numeric argument */ 82 int metanext; /* Is the next char a meta char */ 83 el_action_t lastcmd; /* Previous command */ 84 el_action_t thiscmd; /* this command */ 85 Char thisch; /* char that generated it */ 86 } el_state_t; 87 88 /* 89 * Until we come up with something better... 90 */ 91 #define el_malloc(a) malloc(a) 92 #define el_realloc(a,b) realloc(a, b) 93 #define el_free(a) free(a) 94 95 #include "tty.h" 96 #include "prompt.h" 97 #include "keymacro.h" 98 #include "terminal.h" 99 #include "refresh.h" 100 #include "chared.h" 101 #include "search.h" 102 #include "hist.h" 103 #include "fcns.h" /* el_func_t is needed for map.h */ 104 #include "map.h" 105 #include "sig.h" 106 #include "read.h" 107 108 struct editline { 109 Char *el_prog; /* the program name */ 110 FILE *el_infile; /* Stdio stuff */ 111 FILE *el_outfile; /* Stdio stuff */ 112 FILE *el_errfile; /* Stdio stuff */ 113 int el_infd; /* Input file descriptor */ 114 int el_outfd; /* Output file descriptor */ 115 int el_errfd; /* Error file descriptor */ 116 int el_flags; /* Various flags. */ 117 int el_errno; /* Local copy of errno */ 118 coord_t el_cursor; /* Cursor location */ 119 Char **el_display; /* Real screen image = what is there */ 120 Char **el_vdisplay; /* Virtual screen image = what we see */ 121 void *el_data; /* Client data */ 122 el_line_t el_line; /* The current line information */ 123 el_state_t el_state; /* Current editor state */ 124 el_terminal_t el_terminal; /* Terminal dependent stuff */ 125 el_tty_t el_tty; /* Tty dependent stuff */ 126 el_refresh_t el_refresh; /* Refresh stuff */ 127 el_prompt_t el_prompt; /* Prompt stuff */ 128 el_prompt_t el_rprompt; /* Prompt stuff */ 129 el_chared_t el_chared; /* Characted editor stuff */ 130 el_map_t el_map; /* Key mapping stuff */ 131 el_keymacro_t el_keymacro; /* Key binding stuff */ 132 el_history_t el_history; /* History stuff */ 133 el_search_t el_search; /* Search stuff */ 134 el_signal_t el_signal; /* Signal handling stuff */ 135 el_read_t el_read; /* Character reading stuff */ 136 #ifdef WIDECHAR 137 ct_buffer_t el_scratch; /* Scratch conversion buffer */ 138 ct_buffer_t el_lgcyconv; /* Buffer for legacy wrappers */ 139 LineInfo el_lgcylinfo; /* Legacy LineInfo buffer */ 140 #endif 141 }; 142 143 protected int el_editmode(EditLine *, int, const Char **); 144 145 #ifdef DEBUG 146 #define EL_ABORT(a) do { \ 147 fprintf(el->el_errfile, "%s, %d: ", \ 148 __FILE__, __LINE__); \ 149 fprintf a; \ 150 abort(); \ 151 } while( /*CONSTCOND*/0); 152 #else 153 #define EL_ABORT(a) abort() 154 #endif 155 #endif /* _h_el */ 156
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