1 /*- 2 * Copyright (c) 1991, 1993, 1994 3 * The Regents of the University of California. All rights reserved. 4 * Copyright (c) 1991, 1993, 1994, 1995, 1996 5 * Keith Bostic. All rights reserved. 6 * 7 * See the LICENSE file for redistribution information. 8 * 9 * $Id: key.h,v 10.56 2013/11/13 12:15:27 zy Exp $ 10 */ 11 12 #include "multibyte.h" 13 14 #ifdef USE_WIDECHAR 15 #define FILE2INT5(sp,buf,n,nlen,w,wlen) \ 16 sp->conv.file2int(sp, n, nlen, &buf, &wlen, &w) 17 #define INT2FILE(sp,w,wlen,n,nlen) \ 18 sp->conv.int2file(sp, w, wlen, &sp->cw, &nlen, &n) 19 #define CHAR2INT5(sp,buf,n,nlen,w,wlen) \ 20 sp->conv.sys2int(sp, n, nlen, &buf, &wlen, &w) 21 #define INT2CHAR(sp,w,wlen,n,nlen) \ 22 sp->conv.int2sys(sp, w, wlen, &sp->cw, &nlen, &n) 23 #define INPUT2INT5(sp,cw,n,nlen,w,wlen) \ 24 sp->conv.input2int(sp, n, nlen, &(cw), &wlen, &w) 25 #define CONST 26 #define INTISWIDE(c) (wctob(c) == EOF) 27 #define CHAR_WIDTH(sp, ch) wcwidth(ch) 28 #define CAN_PRINT(sp, ch) (CHAR_WIDTH(sp, ch) > 0) 29 #else 30 #define FILE2INT5(sp,buf,n,nlen,w,wlen) \ 31 (w = n, wlen = nlen, 0) 32 #define INT2FILE(sp,w,wlen,n,nlen) \ 33 (n = w, nlen = wlen, 0) 34 #define CHAR2INT5(sp,buf,n,nlen,w,wlen) \ 35 (w = n, wlen = nlen, 0) 36 #define INT2CHAR(sp,w,wlen,n,nlen) \ 37 (n = w, nlen = wlen, 0) 38 #define INPUT2INT5(sp,buf,n,nlen,w,wlen) \ 39 (w = n, wlen = nlen, 0) 40 #define CONST const 41 #define INTISWIDE(c) 0 42 #define CHAR_WIDTH(sp, ch) 1 43 #define CAN_PRINT(sp, ch) isprint(ch) 44 #endif 45 #define FILE2INT(sp,n,nlen,w,wlen) \ 46 FILE2INT5(sp,sp->cw,n,nlen,w,wlen) 47 #define CHAR2INT(sp,n,nlen,w,wlen) \ 48 CHAR2INT5(sp,sp->cw,n,nlen,w,wlen) 49 50 /* The maximum number of columns any character can take up on a screen. */ 51 #define MAX_CHARACTER_COLUMNS 7 52 53 /* 54 * Event types. 55 * 56 * The program structure depends on the event loop being able to return 57 * E_EOF/E_ERR multiple times -- eventually enough things will end due 58 * to the events that vi will reach the command level for the screen, at 59 * which point the exit flags will be set and vi will exit. 60 */ 61 typedef enum { 62 E_NOTUSED = 0, /* Not set. */ 63 E_CHARACTER, /* Input character: e_c set. */ 64 E_EOF, /* End of input (NOT ^D). */ 65 E_ERR, /* Input error. */ 66 E_INTERRUPT, /* Interrupt. */ 67 E_REPAINT, /* Repaint: e_flno, e_tlno set. */ 68 E_SIGHUP, /* SIGHUP. */ 69 E_SIGTERM, /* SIGTERM. */ 70 E_STRING, /* Input string: e_csp, e_len set. */ 71 E_TIMEOUT, /* Timeout. */ 72 E_WRESIZE, /* Window resize. */ 73 } e_event_t; 74 75 /* 76 * Character values. 77 */ 78 typedef enum { 79 K_NOTUSED = 0, /* Not set. */ 80 K_BACKSLASH, /* \ */ 81 K_CARAT, /* ^ */ 82 K_CNTRLD, /* ^D */ 83 K_CNTRLR, /* ^R */ 84 K_CNTRLT, /* ^T */ 85 K_CNTRLZ, /* ^Z */ 86 K_COLON, /* : */ 87 K_CR, /* \r */ 88 K_ESCAPE, /* ^[ */ 89 K_FORMFEED, /* \f */ 90 K_HEXCHAR, /* ^X */ 91 K_NL, /* \n */ 92 K_RIGHTBRACE, /* } */ 93 K_RIGHTPAREN, /* ) */ 94 K_TAB, /* \t */ 95 K_VERASE, /* set from tty: default ^H */ 96 K_VKILL, /* set from tty: default ^U */ 97 K_VLNEXT, /* set from tty: default ^V */ 98 K_VWERASE, /* set from tty: default ^W */ 99 K_ZERO /* 0 */ 100 } e_key_t; 101 102 struct _event { 103 TAILQ_ENTRY(_event) q; /* Linked list of events. */ 104 e_event_t e_event; /* Event type. */ 105 union { 106 struct { /* Input character. */ 107 CHAR_T c; /* Character. */ 108 e_key_t value; /* Key type. */ 109 110 #define CH_ABBREVIATED 0x01 /* Character is from an abbreviation. */ 111 #define CH_MAPPED 0x02 /* Character is from a map. */ 112 #define CH_NOMAP 0x04 /* Do not map the character. */ 113 #define CH_QUOTED 0x08 /* Character is already quoted. */ 114 u_int8_t flags; 115 } _e_ch; 116 #define e_ch _u_event._e_ch /* !!! The structure, not the char. */ 117 #define e_c _u_event._e_ch.c 118 #define e_value _u_event._e_ch.value 119 #define e_flags _u_event._e_ch.flags 120 121 struct { /* Screen position, size. */ 122 size_t lno1; /* Line number. */ 123 size_t cno1; /* Column number. */ 124 size_t lno2; /* Line number. */ 125 size_t cno2; /* Column number. */ 126 } _e_mark; 127 #define e_lno _u_event._e_mark.lno1 /* Single location. */ 128 #define e_cno _u_event._e_mark.cno1 129 #define e_flno _u_event._e_mark.lno1 /* Text region. */ 130 #define e_fcno _u_event._e_mark.cno1 131 #define e_tlno _u_event._e_mark.lno2 132 #define e_tcno _u_event._e_mark.cno2 133 134 struct { /* Input string. */ 135 CHAR_T *asp; /* Allocated string. */ 136 CHAR_T *csp; /* String. */ 137 size_t len; /* String length. */ 138 } _e_str; 139 #define e_asp _u_event._e_str.asp 140 #define e_csp _u_event._e_str.csp 141 #define e_len _u_event._e_str.len 142 } _u_event; 143 }; 144 145 typedef struct _keylist { 146 e_key_t value; /* Special value. */ 147 int ch; /* Key. */ 148 } KEYLIST; 149 extern KEYLIST keylist[]; 150 151 /* Return if more keys in queue. */ 152 #define KEYS_WAITING(sp) ((sp)->gp->i_cnt != 0) 153 #define MAPPED_KEYS_WAITING(sp) \ 154 (KEYS_WAITING(sp) && \ 155 F_ISSET(&sp->gp->i_event[sp->gp->i_next].e_ch, CH_MAPPED)) 156 157 /* 158 * Ex/vi commands are generally separated by whitespace characters. We 159 * can't use the standard isspace(3) macro because it returns true for 160 * characters like ^K in the ASCII character set. The POSIX isblank(3) 161 * has the same problem for non-ASCII locale, so we need a standalone one. 162 * 163 * XXX 164 * Note side effect, ch is evaluated multiple times. 165 */ 166 #define cmdskip(ch) ((ch) == ' ' || (ch) == '\t') 167 168 /* The "standard" tab width, for displaying things to users. */ 169 #define STANDARD_TAB 6 170 171 /* Various special characters, messages. */ 172 #define CH_BSEARCH '?' /* Backward search prompt. */ 173 #define CH_CURSOR ' ' /* Cursor character. */ 174 #define CH_ENDMARK '$' /* End of a range. */ 175 #define CH_EXPROMPT ':' /* Ex prompt. */ 176 #define CH_FSEARCH '/' /* Forward search prompt. */ 177 #define CH_HEX '\030' /* Leading hex character. */ 178 #define CH_LITERAL '\026' /* ASCII ^V. */ 179 #define CH_NO 'n' /* No. */ 180 #define CH_NOT_DIGIT 'a' /* A non-isdigit() character. */ 181 #define CH_QUIT 'q' /* Quit. */ 182 #define CH_YES 'y' /* Yes. */ 183 184 /* 185 * Checking for interrupts means that we look at the bit that gets set if the 186 * screen code supports asynchronous events, and call back into the event code 187 * so that non-asynchronous screens get a chance to post the interrupt. 188 * 189 * INTERRUPT_CHECK is the number of lines "operated" on before checking for 190 * interrupts. 191 */ 192 #define INTERRUPT_CHECK 100 193 #define INTERRUPTED(sp) \ 194 (F_ISSET((sp)->gp, G_INTERRUPTED) || \ 195 (!v_event_get(sp, NULL, 0, EC_INTERRUPT) && \ 196 F_ISSET((sp)->gp, G_INTERRUPTED))) 197 #define CLR_INTERRUPT(sp) \ 198 F_CLR((sp)->gp, G_INTERRUPTED) 199 200 /* Flags describing types of characters being requested. */ 201 #define EC_INTERRUPT 0x001 /* Checking for interrupts. */ 202 #define EC_MAPCOMMAND 0x002 /* Apply the command map. */ 203 #define EC_MAPINPUT 0x004 /* Apply the input map. */ 204 #define EC_MAPNODIGIT 0x008 /* Return to a digit. */ 205 #define EC_QUOTED 0x010 /* Try to quote next character */ 206 #define EC_RAW 0x020 /* Any next character. XXX: not used. */ 207 #define EC_TIMEOUT 0x040 /* Timeout to next character. */ 208 209 /* Flags describing text input special cases. */ 210 #define TXT_ADDNEWLINE 0x00000001 /* Replay starts on a new line. */ 211 #define TXT_AICHARS 0x00000002 /* Leading autoindent chars. */ 212 #define TXT_ALTWERASE 0x00000004 /* Option: altwerase. */ 213 #define TXT_APPENDEOL 0x00000008 /* Appending after EOL. */ 214 #define TXT_AUTOINDENT 0x00000010 /* Autoindent set this line. */ 215 #define TXT_BACKSLASH 0x00000020 /* Backslashes escape characters. */ 216 #define TXT_BEAUTIFY 0x00000040 /* Only printable characters. */ 217 #define TXT_BS 0x00000080 /* Backspace returns the buffer. */ 218 #define TXT_CEDIT 0x00000100 /* Can return TERM_CEDIT. */ 219 #define TXT_CNTRLD 0x00000200 /* Control-D is a command. */ 220 #define TXT_CNTRLT 0x00000400 /* Control-T is an indent special. */ 221 #define TXT_CR 0x00000800 /* CR returns the buffer. */ 222 #define TXT_DOTTERM 0x00001000 /* Leading '.' terminates the input. */ 223 #define TXT_EMARK 0x00002000 /* End of replacement mark. */ 224 #define TXT_EOFCHAR 0x00004000 /* ICANON set, return EOF character. */ 225 #define TXT_ESCAPE 0x00008000 /* Escape returns the buffer. */ 226 #define TXT_FILEC 0x00010000 /* Option: filec. */ 227 #define TXT_INFOLINE 0x00020000 /* Editing the info line. */ 228 #define TXT_MAPINPUT 0x00040000 /* Apply the input map. */ 229 #define TXT_NLECHO 0x00080000 /* Echo the newline. */ 230 #define TXT_NUMBER 0x00100000 /* Number the line. */ 231 #define TXT_OVERWRITE 0x00200000 /* Overwrite characters. */ 232 #define TXT_PROMPT 0x00400000 /* Display a prompt. */ 233 #define TXT_RECORD 0x00800000 /* Record for replay. */ 234 #define TXT_REPLACE 0x01000000 /* Replace; don't delete overwrite. */ 235 #define TXT_REPLAY 0x02000000 /* Replay the last input. */ 236 #define TXT_RESOLVE 0x04000000 /* Resolve the text into the file. */ 237 #define TXT_SEARCHINCR 0x08000000 /* Incremental search. */ 238 #define TXT_SHOWMATCH 0x10000000 /* Option: showmatch. */ 239 #define TXT_TTYWERASE 0x20000000 /* Option: ttywerase. */ 240 #define TXT_WRAPMARGIN 0x40000000 /* Option: wrapmargin. */ 241