tc1.c revision 276881
1/* $NetBSD: tc1.c,v 1.6 2014/06/18 20:12:15 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 43static char sccsid[] = "@(#)test.c 8.1 (Berkeley) 6/4/93"; 44#else 45__RCSID("$NetBSD: tc1.c,v 1.6 2014/06/18 20:12:15 christos Exp $"); 46#endif 47#endif /* not lint && not SCCSID */ 48__FBSDID("$FreeBSD: head/lib/libedit/TEST/tc1.c 276881 2015-01-09 07:40:56Z bapt $"); 49 50/* 51 * test.c: A little test program 52 */ 53#include <stdio.h> 54#include <string.h> 55#include <signal.h> 56#include <sys/wait.h> 57#include <ctype.h> 58#include <stdlib.h> 59#include <unistd.h> 60#include <dirent.h> 61#include <locale.h> 62 63#include "histedit.h" 64 65static int continuation = 0; 66volatile sig_atomic_t gotsig = 0; 67 68static unsigned char complete(EditLine *, int); 69 int main(int, char **); 70static char *prompt(EditLine *); 71static void sig(int); 72 73static char * 74prompt(EditLine *el) 75{ 76 static char a[] = "\1\033[7m\1Edit$\1\033[0m\1 "; 77 static char b[] = "Edit> "; 78 79 return (continuation ? b : a); 80} 81 82static void 83sig(int i) 84{ 85 gotsig = i; 86} 87 88static unsigned char 89complete(EditLine *el, int ch) 90{ 91 DIR *dd = opendir("."); 92 struct dirent *dp; 93 const char* ptr; 94 const LineInfo *lf = el_line(el); 95 int len; 96 int res = CC_ERROR; 97 98 /* 99 * Find the last word 100 */ 101 for (ptr = lf->cursor - 1; 102 !isspace((unsigned char)*ptr) && ptr > lf->buffer; ptr--) 103 continue; 104 len = lf->cursor - ++ptr; 105 106 for (dp = readdir(dd); dp != NULL; dp = readdir(dd)) { 107 if (len > strlen(dp->d_name)) 108 continue; 109 if (strncmp(dp->d_name, ptr, len) == 0) { 110 if (el_insertstr(el, &dp->d_name[len]) == -1) 111 res = CC_ERROR; 112 else 113 res = CC_REFRESH; 114 break; 115 } 116 } 117 118 closedir(dd); 119 return res; 120} 121 122int 123main(int argc, char *argv[]) 124{ 125 EditLine *el = NULL; 126 int num; 127 const char *buf; 128 Tokenizer *tok; 129#if 0 130 int lastevent = 0; 131#endif 132 int ncontinuation; 133 History *hist; 134 HistEvent ev; 135 136 (void) setlocale(LC_CTYPE, ""); 137 (void) signal(SIGINT, sig); 138 (void) signal(SIGQUIT, sig); 139 (void) signal(SIGHUP, sig); 140 (void) signal(SIGTERM, sig); 141 142 hist = history_init(); /* Init the builtin history */ 143 /* Remember 100 events */ 144 history(hist, &ev, H_SETSIZE, 100); 145 146 tok = tok_init(NULL); /* Initialize the tokenizer */ 147 148 /* Initialize editline */ 149 el = el_init(*argv, stdin, stdout, stderr); 150 151 el_set(el, EL_EDITOR, "vi"); /* Default editor is vi */ 152 el_set(el, EL_SIGNAL, 1); /* Handle signals gracefully */ 153 el_set(el, EL_PROMPT_ESC, prompt, '\1');/* Set the prompt function */ 154 155 /* Tell editline to use this history interface */ 156 el_set(el, EL_HIST, history, hist); 157 158 /* Add a user-defined function */ 159 el_set(el, EL_ADDFN, "ed-complete", "Complete argument", complete); 160 161 /* Bind tab to it */ 162 el_set(el, EL_BIND, "^I", "ed-complete", NULL); 163 164 /* 165 * Bind j, k in vi command mode to previous and next line, instead 166 * of previous and next history. 167 */ 168 el_set(el, EL_BIND, "-a", "k", "ed-prev-line", NULL); 169 el_set(el, EL_BIND, "-a", "j", "ed-next-line", NULL); 170 171 /* 172 * Source the user's defaults file. 173 */ 174 el_source(el, NULL); 175 176 while ((buf = el_gets(el, &num)) != NULL && num != 0) { 177 int ac, cc, co; 178#ifdef DEBUG 179 int i; 180#endif 181 const char **av; 182 const LineInfo *li; 183 li = el_line(el); 184#ifdef DEBUG 185 (void) fprintf(stderr, "==> got %d %s", num, buf); 186 (void) fprintf(stderr, " > li `%.*s_%.*s'\n", 187 (li->cursor - li->buffer), li->buffer, 188 (li->lastchar - 1 - li->cursor), 189 (li->cursor >= li->lastchar) ? "" : li->cursor); 190 191#endif 192 if (gotsig) { 193 (void) fprintf(stderr, "Got signal %d.\n", (int)gotsig); 194 gotsig = 0; 195 el_reset(el); 196 } 197 198 if (!continuation && num == 1) 199 continue; 200 201 ac = cc = co = 0; 202 ncontinuation = tok_line(tok, li, &ac, &av, &cc, &co); 203 if (ncontinuation < 0) { 204 (void) fprintf(stderr, "Internal error\n"); 205 continuation = 0; 206 continue; 207 } 208#ifdef DEBUG 209 (void) fprintf(stderr, " > nc %d ac %d cc %d co %d\n", 210 ncontinuation, ac, cc, co); 211#endif 212#if 0 213 if (continuation) { 214 /* 215 * Append to the right event in case the user 216 * moved around in history. 217 */ 218 if (history(hist, &ev, H_SET, lastevent) == -1) 219 err(1, "%d: %s", lastevent, ev.str); 220 history(hist, &ev, H_ADD , buf); 221 } else { 222 history(hist, &ev, H_ENTER, buf); 223 lastevent = ev.num; 224 } 225#else 226 /* Simpler */ 227 history(hist, &ev, continuation ? H_APPEND : H_ENTER, buf); 228#endif 229 230 continuation = ncontinuation; 231 ncontinuation = 0; 232 if (continuation) 233 continue; 234#ifdef DEBUG 235 for (i = 0; i < ac; i++) { 236 (void) fprintf(stderr, " > arg# %2d ", i); 237 if (i != cc) 238 (void) fprintf(stderr, "`%s'\n", av[i]); 239 else 240 (void) fprintf(stderr, "`%.*s_%s'\n", 241 co, av[i], av[i] + co); 242 } 243#endif 244 245 if (strcmp(av[0], "history") == 0) { 246 int rv; 247 248 switch (ac) { 249 case 1: 250 for (rv = history(hist, &ev, H_LAST); rv != -1; 251 rv = history(hist, &ev, H_PREV)) 252 (void) fprintf(stdout, "%4d %s", 253 ev.num, ev.str); 254 break; 255 256 case 2: 257 if (strcmp(av[1], "clear") == 0) 258 history(hist, &ev, H_CLEAR); 259 else 260 goto badhist; 261 break; 262 263 case 3: 264 if (strcmp(av[1], "load") == 0) 265 history(hist, &ev, H_LOAD, av[2]); 266 else if (strcmp(av[1], "save") == 0) 267 history(hist, &ev, H_SAVE, av[2]); 268 break; 269 270 badhist: 271 default: 272 (void) fprintf(stderr, 273 "Bad history arguments\n"); 274 break; 275 } 276 } else if (el_parse(el, ac, av) == -1) { 277 switch (fork()) { 278 case 0: 279 execvp(av[0], __DECONST(char **, av)); 280 perror(av[0]); 281 _exit(1); 282 /*NOTREACHED*/ 283 break; 284 285 case -1: 286 perror("fork"); 287 break; 288 289 default: 290 if (wait(&num) == -1) 291 perror("wait"); 292 (void) fprintf(stderr, "Exit %x\n", num); 293 break; 294 } 295 } 296 297 tok_reset(tok); 298 } 299 300 el_end(el); 301 tok_end(tok); 302 history_end(hist); 303 304 return (0); 305} 306