1 /* $NetBSD: histedit.h,v 1.49 2012/05/31 13:16:39 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 * @(#)histedit.h 8.2 (Berkeley) 1/3/94 35 */ 36 37 /* 38 * histedit.h: Line editor and history interface. 39 */ 40 #ifndef _HISTEDIT_H_ 41 #define _HISTEDIT_H_ 42 43 #define LIBEDIT_MAJOR 2 44 #define LIBEDIT_MINOR 11 45 46 #include <sys/types.h> 47 #include <stdio.h> 48 49 #ifdef __cplusplus 50 extern "C" { 51 #endif 52 53 /* 54 * ==== Editing ==== 55 */ 56 57 typedef struct editline EditLine; 58 59 /* 60 * For user-defined function interface 61 */ 62 typedef struct lineinfo { 63 const char *buffer; 64 const char *cursor; 65 const char *lastchar; 66 } LineInfo; 67 68 /* 69 * EditLine editor function return codes. 70 * For user-defined function interface 71 */ 72 #define CC_NORM 0 73 #define CC_NEWLINE 1 74 #define CC_EOF 2 75 #define CC_ARGHACK 3 76 #define CC_REFRESH 4 77 #define CC_CURSOR 5 78 #define CC_ERROR 6 79 #define CC_FATAL 7 80 #define CC_REDISPLAY 8 81 #define CC_REFRESH_BEEP 9 82 83 /* 84 * Initialization, cleanup, and resetting 85 */ 86 EditLine *el_init(const char *, FILE *, FILE *, FILE *); 87 void el_end(EditLine *); 88 void el_reset(EditLine *); 89 90 /* 91 * Get a line, a character or push a string back in the input queue 92 */ 93 const char *el_gets(EditLine *, int *); 94 int el_getc(EditLine *, char *); 95 void el_push(EditLine *, const char *); 96 97 /* 98 * Beep! 99 */ 100 void el_beep(EditLine *); 101 102 /* 103 * High level function internals control 104 * Parses argc, argv array and executes builtin editline commands 105 */ 106 int el_parse(EditLine *, int, const char **); 107 108 /* 109 * Low level editline access functions 110 */ 111 int el_set(EditLine *, int, ...); 112 int el_get(EditLine *, int, ...); 113 unsigned char _el_fn_complete(EditLine *, int); 114 115 /* 116 * el_set/el_get parameters 117 * 118 * When using el_wset/el_wget (as opposed to el_set/el_get): 119 * Char is wchar_t, otherwise it is char. 120 * prompt_func is el_wpfunc_t, otherwise it is el_pfunc_t . 121 122 * Prompt function prototypes are: 123 * typedef char *(*el_pfunct_t) (EditLine *); 124 * typedef wchar_t *(*el_wpfunct_t) (EditLine *); 125 * 126 * For operations that support set or set/get, the argument types listed are for 127 * the "set" operation. For "get", each listed type must be a pointer. 128 * E.g. EL_EDITMODE takes an int when set, but an int* when get. 129 * 130 * Operations that only support "get" have the correct argument types listed. 131 */ 132 #define EL_PROMPT 0 /* , prompt_func); set/get */ 133 #define EL_TERMINAL 1 /* , const char *); set/get */ 134 #define EL_EDITOR 2 /* , const Char *); set/get */ 135 #define EL_SIGNAL 3 /* , int); set/get */ 136 #define EL_BIND 4 /* , const Char *, ..., NULL); set */ 137 #define EL_TELLTC 5 /* , const Char *, ..., NULL); set */ 138 #define EL_SETTC 6 /* , const Char *, ..., NULL); set */ 139 #define EL_ECHOTC 7 /* , const Char *, ..., NULL); set */ 140 #define EL_SETTY 8 /* , const Char *, ..., NULL); set */ 141 #define EL_ADDFN 9 /* , const Char *, const Char, set */ 142 /* el_func_t); */ 143 #define EL_HIST 10 /* , hist_fun_t, const void *); set */ 144 #define EL_EDITMODE 11 /* , int); set/get */ 145 #define EL_RPROMPT 12 /* , prompt_func); set/get */ 146 #define EL_GETCFN 13 /* , el_rfunc_t); set/get */ 147 #define EL_CLIENTDATA 14 /* , void *); set/get */ 148 #define EL_UNBUFFERED 15 /* , int); set/get */ 149 #define EL_PREP_TERM 16 /* , int); set */ 150 #define EL_GETTC 17 /* , const Char *, ..., NULL); get */ 151 #define EL_GETFP 18 /* , int, FILE **); get */ 152 #define EL_SETFP 19 /* , int, FILE *); set */ 153 #define EL_REFRESH 20 /* , void); set */ 154 #define EL_PROMPT_ESC 21 /* , prompt_func, Char); set/get */ 155 #define EL_RPROMPT_ESC 22 /* , prompt_func, Char); set/get */ 156 #define EL_RESIZE 23 /* , el_zfunc_t, void *); set */ 157 158 #define EL_BUILTIN_GETCFN (NULL) 159 160 /* 161 * Source named file or $PWD/.editrc or $HOME/.editrc 162 */ 163 int el_source(EditLine *, const char *); 164 165 /* 166 * Must be called when the terminal changes size; If EL_SIGNAL 167 * is set this is done automatically otherwise it is the responsibility 168 * of the application 169 */ 170 void el_resize(EditLine *); 171 172 /* 173 * User-defined function interface. 174 */ 175 const LineInfo *el_line(EditLine *); 176 int el_insertstr(EditLine *, const char *); 177 void el_deletestr(EditLine *, int); 178 179 180 /* 181 * ==== History ==== 182 */ 183 184 typedef struct history History; 185 186 typedef struct HistEvent { 187 int num; 188 const char *str; 189 } HistEvent; 190 191 /* 192 * History access functions. 193 */ 194 History * history_init(void); 195 void history_end(History *); 196 197 int history(History *, HistEvent *, int, ...); 198 199 #define H_FUNC 0 /* , UTSL */ 200 #define H_SETSIZE 1 /* , const int); */ 201 #define H_GETSIZE 2 /* , void); */ 202 #define H_FIRST 3 /* , void); */ 203 #define H_LAST 4 /* , void); */ 204 #define H_PREV 5 /* , void); */ 205 #define H_NEXT 6 /* , void); */ 206 #define H_CURR 8 /* , const int); */ 207 #define H_SET 7 /* , int); */ 208 #define H_ADD 9 /* , const wchar_t *); */ 209 #define H_ENTER 10 /* , const wchar_t *); */ 210 #define H_APPEND 11 /* , const wchar_t *); */ 211 #define H_END 12 /* , void); */ 212 #define H_NEXT_STR 13 /* , const wchar_t *); */ 213 #define H_PREV_STR 14 /* , const wchar_t *); */ 214 #define H_NEXT_EVENT 15 /* , const int); */ 215 #define H_PREV_EVENT 16 /* , const int); */ 216 #define H_LOAD 17 /* , const char *); */ 217 #define H_SAVE 18 /* , const char *); */ 218 #define H_CLEAR 19 /* , void); */ 219 #define H_SETUNIQUE 20 /* , int); */ 220 #define H_GETUNIQUE 21 /* , void); */ 221 #define H_DEL 22 /* , int); */ 222 #define H_NEXT_EVDATA 23 /* , const int, histdata_t *); */ 223 #define H_DELDATA 24 /* , int, histdata_t *);*/ 224 #define H_REPLACE 25 /* , const char *, histdata_t); */ 225 226 227 228 /* 229 * ==== Tokenization ==== 230 */ 231 232 typedef struct tokenizer Tokenizer; 233 234 /* 235 * String tokenization functions, using simplified sh(1) quoting rules 236 */ 237 Tokenizer *tok_init(const char *); 238 void tok_end(Tokenizer *); 239 void tok_reset(Tokenizer *); 240 int tok_line(Tokenizer *, const LineInfo *, 241 int *, const char ***, int *, int *); 242 int tok_str(Tokenizer *, const char *, 243 int *, const char ***); 244 245 /* 246 * Begin Wide Character Support 247 */ 248 #ifdef __linux__ 249 /* Apparently we need _GNU_SOURCE defined to get access to wcsdup on Linux */ 250 #ifndef _GNU_SOURCE 251 #define _GNU_SOURCE 252 #endif 253 #endif 254 255 #include <wchar.h> 256 #include <wctype.h> 257 258 /* 259 * Wide character versions 260 */ 261 262 /* 263 * ==== Editing ==== 264 */ 265 typedef struct lineinfow { 266 const wchar_t *buffer; 267 const wchar_t *cursor; 268 const wchar_t *lastchar; 269 } LineInfoW; 270 271 const wchar_t *el_wgets(EditLine *, int *); 272 int el_wgetc(EditLine *, wchar_t *); 273 void el_wpush(EditLine *, const wchar_t *); 274 275 int el_wparse(EditLine *, int, const wchar_t **); 276 277 int el_wset(EditLine *, int, ...); 278 int el_wget(EditLine *, int, ...); 279 280 const LineInfoW *el_wline(EditLine *); 281 int el_winsertstr(EditLine *, const wchar_t *); 282 #define el_wdeletestr el_deletestr 283 284 /* 285 * ==== History ==== 286 */ 287 typedef struct histeventW { 288 int num; 289 const wchar_t *str; 290 } HistEventW; 291 292 typedef struct historyW HistoryW; 293 294 HistoryW * history_winit(void); 295 void history_wend(HistoryW *); 296 297 int history_w(HistoryW *, HistEventW *, int, ...); 298 299 /* 300 * ==== Tokenization ==== 301 */ 302 typedef struct tokenizerW TokenizerW; 303 304 /* Wide character tokenizer support */ 305 TokenizerW *tok_winit(const wchar_t *); 306 void tok_wend(TokenizerW *); 307 void tok_wreset(TokenizerW *); 308 int tok_wline(TokenizerW *, const LineInfoW *, 309 int *, const wchar_t ***, int *, int *); 310 int tok_wstr(TokenizerW *, const wchar_t *, 311 int *, const wchar_t ***); 312 313 #ifdef __cplusplus 314 } 315 #endif 316 317 #endif /* _HISTEDIT_H_ */ 318