tc1.c revision 1.4
1 /* $NetBSD: tc1.c,v 1.4 2010/04/15 00:50:46 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 35 #include "config.h" 36 #ifndef lint 37 __COPYRIGHT("@(#) Copyright (c) 1992, 1993\n\ 38 The Regents of the University of California. All rights reserved.\n"); 39 #endif /* not lint */ 40 41 #if !defined(lint) && !defined(SCCSID) 42 #if 0 43 static char sccsid[] = "@(#)test.c 8.1 (Berkeley) 6/4/93"; 44 #else 45 __RCSID("$NetBSD: tc1.c,v 1.4 2010/04/15 00:50:46 christos Exp $"); 46 #endif 47 #endif /* not lint && not SCCSID */ 48 49 /* 50 * test.c: A little test program 51 */ 52 #include <stdio.h> 53 #include <string.h> 54 #include <signal.h> 55 #include <sys/wait.h> 56 #include <ctype.h> 57 #include <stdlib.h> 58 #include <unistd.h> 59 #include <dirent.h> 60 #include <locale.h> 61 62 #include "histedit.h" 63 64 static int continuation = 0; 65 volatile sig_atomic_t gotsig = 0; 66 67 static unsigned char complete(EditLine *, int); 68 int main(int, char **); 69 static char *prompt(EditLine *); 70 static void sig(int); 71 72 static char * 73 prompt(EditLine *el) 74 { 75 static char a[] = "\1\e[7m\1Edit$\1\e[0m\1 "; 76 static char b[] = "Edit> "; 77 78 return (continuation ? b : a); 79 } 80 81 static void 82 sig(int i) 83 { 84 gotsig = i; 85 } 86 87 static unsigned char 88 complete(EditLine *el, int ch) 89 { 90 DIR *dd = opendir("."); 91 struct dirent *dp; 92 const char* ptr; 93 const LineInfo *lf = el_line(el); 94 int len; 95 96 /* 97 * Find the last word 98 */ 99 for (ptr = lf->cursor - 1; 100 !isspace((unsigned char)*ptr) && ptr > lf->buffer; ptr--) 101 continue; 102 len = lf->cursor - ++ptr; 103 104 for (dp = readdir(dd); dp != NULL; dp = readdir(dd)) { 105 if (len > strlen(dp->d_name)) 106 continue; 107 if (strncmp(dp->d_name, ptr, len) == 0) { 108 closedir(dd); 109 if (el_insertstr(el, &dp->d_name[len]) == -1) 110 return (CC_ERROR); 111 else 112 return (CC_REFRESH); 113 } 114 } 115 116 closedir(dd); 117 return (CC_ERROR); 118 } 119 120 int 121 main(int argc, char *argv[]) 122 { 123 EditLine *el = NULL; 124 int num; 125 const char *buf; 126 Tokenizer *tok; 127 #if 0 128 int lastevent = 0; 129 #endif 130 int ncontinuation; 131 History *hist; 132 HistEvent ev; 133 134 (void) setlocale(LC_CTYPE, ""); 135 (void) signal(SIGINT, sig); 136 (void) signal(SIGQUIT, sig); 137 (void) signal(SIGHUP, sig); 138 (void) signal(SIGTERM, sig); 139 140 hist = history_init(); /* Init the builtin history */ 141 /* Remember 100 events */ 142 history(hist, &ev, H_SETSIZE, 100); 143 144 tok = tok_init(NULL); /* Initialize the tokenizer */ 145 146 /* Initialize editline */ 147 el = el_init(*argv, stdin, stdout, stderr); 148 149 el_set(el, EL_EDITOR, "vi"); /* Default editor is vi */ 150 el_set(el, EL_SIGNAL, 1); /* Handle signals gracefully */ 151 el_set(el, EL_PROMPT_ESC, prompt, '\1');/* Set the prompt function */ 152 153 /* Tell editline to use this history interface */ 154 el_set(el, EL_HIST, history, hist); 155 156 /* Add a user-defined function */ 157 el_set(el, EL_ADDFN, "ed-complete", "Complete argument", complete); 158 159 /* Bind tab to it */ 160 el_set(el, EL_BIND, "^I", "ed-complete", NULL); 161 162 /* 163 * Bind j, k in vi command mode to previous and next line, instead 164 * of previous and next history. 165 */ 166 el_set(el, EL_BIND, "-a", "k", "ed-prev-line", NULL); 167 el_set(el, EL_BIND, "-a", "j", "ed-next-line", NULL); 168 169 /* 170 * Source the user's defaults file. 171 */ 172 el_source(el, NULL); 173 174 while ((buf = el_gets(el, &num)) != NULL && num != 0) { 175 int ac, cc, co; 176 #ifdef DEBUG 177 int i; 178 #endif 179 const char **av; 180 const LineInfo *li; 181 li = el_line(el); 182 #ifdef DEBUG 183 (void) fprintf(stderr, "==> got %d %s", num, buf); 184 (void) fprintf(stderr, " > li `%.*s_%.*s'\n", 185 (li->cursor - li->buffer), li->buffer, 186 (li->lastchar - 1 - li->cursor), 187 (li->cursor >= li->lastchar) ? "" : li->cursor); 188 189 #endif 190 if (gotsig) { 191 (void) fprintf(stderr, "Got signal %d.\n", gotsig); 192 gotsig = 0; 193 el_reset(el); 194 } 195 196 if (!continuation && num == 1) 197 continue; 198 199 ac = cc = co = 0; 200 ncontinuation = tok_line(tok, li, &ac, &av, &cc, &co); 201 if (ncontinuation < 0) { 202 (void) fprintf(stderr, "Internal error\n"); 203 continuation = 0; 204 continue; 205 } 206 #ifdef DEBUG 207 (void) fprintf(stderr, " > nc %d ac %d cc %d co %d\n", 208 ncontinuation, ac, cc, co); 209 #endif 210 #if 0 211 if (continuation) { 212 /* 213 * Append to the right event in case the user 214 * moved around in history. 215 */ 216 if (history(hist, &ev, H_SET, lastevent) == -1) 217 err(1, "%d: %s", lastevent, ev.str); 218 history(hist, &ev, H_ADD , buf); 219 } else { 220 history(hist, &ev, H_ENTER, buf); 221 lastevent = ev.num; 222 } 223 #else 224 /* Simpler */ 225 history(hist, &ev, continuation ? H_APPEND : H_ENTER, buf); 226 #endif 227 228 continuation = ncontinuation; 229 ncontinuation = 0; 230 if (continuation) 231 continue; 232 #ifdef DEBUG 233 for (i = 0; i < ac; i++) { 234 (void) fprintf(stderr, " > arg# %2d ", i); 235 if (i != cc) 236 (void) fprintf(stderr, "`%s'\n", av[i]); 237 else 238 (void) fprintf(stderr, "`%.*s_%s'\n", 239 co, av[i], av[i] + co); 240 } 241 #endif 242 243 if (strcmp(av[0], "history") == 0) { 244 int rv; 245 246 switch (ac) { 247 case 1: 248 for (rv = history(hist, &ev, H_LAST); rv != -1; 249 rv = history(hist, &ev, H_PREV)) 250 (void) fprintf(stdout, "%4d %s", 251 ev.num, ev.str); 252 break; 253 254 case 2: 255 if (strcmp(av[1], "clear") == 0) 256 history(hist, &ev, H_CLEAR); 257 else 258 goto badhist; 259 break; 260 261 case 3: 262 if (strcmp(av[1], "load") == 0) 263 history(hist, &ev, H_LOAD, av[2]); 264 else if (strcmp(av[1], "save") == 0) 265 history(hist, &ev, H_SAVE, av[2]); 266 break; 267 268 badhist: 269 default: 270 (void) fprintf(stderr, 271 "Bad history arguments\n"); 272 break; 273 } 274 } else if (el_parse(el, ac, av) == -1) { 275 switch (fork()) { 276 case 0: 277 execvp(av[0], (char *const *)__UNCONST(av)); 278 perror(av[0]); 279 _exit(1); 280 /*NOTREACHED*/ 281 break; 282 283 case -1: 284 perror("fork"); 285 break; 286 287 default: 288 if (wait(&num) == -1) 289 perror("wait"); 290 (void) fprintf(stderr, "Exit %x\n", num); 291 break; 292 } 293 } 294 295 tok_reset(tok); 296 } 297 298 el_end(el); 299 tok_end(tok); 300 history_end(hist); 301 302 return (0); 303 } 304
Indexes created Mon Sep 22 05:09:51 GMT 2025