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+/* $NetBSD: tc1.c,v 1.5 2010/04/18 21:17:47 christos Exp $ */
+
+/*-
+ * Copyright (c) 1992, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "config.h"
+#ifndef lint
+__COPYRIGHT("@(#) Copyright (c) 1992, 1993\n\
+ The Regents of the University of California. All rights reserved.\n");
+#endif /* not lint */
+
+#if !defined(lint) && !defined(SCCSID)
+#if 0
+static char sccsid[] = "@(#)test.c 8.1 (Berkeley) 6/4/93";
+#else
+__RCSID("$NetBSD: tc1.c,v 1.5 2010/04/18 21:17:47 christos Exp $");
+#endif
+#endif /* not lint && not SCCSID */
+
+/* from src/sys/sys/cdefs.h */
+#ifndef __UNCONST
+# define __UNCONST(a) ((void *)(unsigned long)(const void *)(a))
+#endif
+
+/*
+ * test.c: A little test program
+ */
+#include <stdio.h>
+#include <string.h>
+#include <signal.h>
+#include <sys/wait.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <dirent.h>
+#include <locale.h>
+
+#include "histedit.h"
+
+static int continuation = 0;
+volatile sig_atomic_t gotsig = 0;
+
+static unsigned char complete(EditLine *, int);
+ int main(int, char **);
+static char *prompt(EditLine *);
+static void sig(int);
+
+static char *
+prompt(EditLine *el)
+{
+ static char a[] = "\1\033[7m\1Edit$\1\033[0m\1 ";
+ static char b[] = "Edit> ";
+
+ return (continuation ? b : a);
+}
+
+static void
+sig(int i)
+{
+ gotsig = i;
+}
+
+static unsigned char
+complete(EditLine *el, int ch)
+{
+ DIR *dd = opendir(".");
+ struct dirent *dp;
+ const char* ptr;
+ const LineInfo *lf = el_line(el);
+ int len;
+ int res = CC_ERROR;
+
+ /*
+ * Find the last word
+ */
+ for (ptr = lf->cursor - 1;
+ !isspace((unsigned char)*ptr) && ptr > lf->buffer; ptr--)
+ continue;
+ len = lf->cursor - ++ptr;
+
+ for (dp = readdir(dd); dp != NULL; dp = readdir(dd)) {
+ if (len > strlen(dp->d_name))
+ continue;
+ if (strncmp(dp->d_name, ptr, len) == 0) {
+ if (el_insertstr(el, &dp->d_name[len]) == -1)
+ res = CC_ERROR;
+ else
+ res = CC_REFRESH;
+ break;
+ }
+ }
+
+ closedir(dd);
+ return res;
+}
+
+int
+main(int argc, char *argv[])
+{
+ EditLine *el = NULL;
+ int num;
+ const char *buf;
+ Tokenizer *tok;
+#if 0
+ int lastevent = 0;
+#endif
+ int ncontinuation;
+ History *hist;
+ HistEvent ev;
+
+ (void) setlocale(LC_CTYPE, "");
+ (void) signal(SIGINT, sig);
+ (void) signal(SIGQUIT, sig);
+ (void) signal(SIGHUP, sig);
+ (void) signal(SIGTERM, sig);
+
+ hist = history_init(); /* Init the builtin history */
+ /* Remember 100 events */
+ history(hist, &ev, H_SETSIZE, 100);
+
+ tok = tok_init(NULL); /* Initialize the tokenizer */
+
+ /* Initialize editline */
+ el = el_init(*argv, stdin, stdout, stderr);
+
+ el_set(el, EL_EDITOR, "vi"); /* Default editor is vi */
+ el_set(el, EL_SIGNAL, 1); /* Handle signals gracefully */
+ el_set(el, EL_PROMPT_ESC, prompt, '\1');/* Set the prompt function */
+
+ /* Tell editline to use this history interface */
+ el_set(el, EL_HIST, history, hist);
+
+ /* Add a user-defined function */
+ el_set(el, EL_ADDFN, "ed-complete", "Complete argument", complete);
+
+ /* Bind tab to it */
+ el_set(el, EL_BIND, "^I", "ed-complete", NULL);
+
+ /*
+ * Bind j, k in vi command mode to previous and next line, instead
+ * of previous and next history.
+ */
+ el_set(el, EL_BIND, "-a", "k", "ed-prev-line", NULL);
+ el_set(el, EL_BIND, "-a", "j", "ed-next-line", NULL);
+
+ /*
+ * Source the user's defaults file.
+ */
+ el_source(el, NULL);
+
+ while ((buf = el_gets(el, &num)) != NULL && num != 0) {
+ int ac, cc, co;
+#ifdef DEBUG
+ int i;
+#endif
+ const char **av;
+ const LineInfo *li;
+ li = el_line(el);
+#ifdef DEBUG
+ (void) fprintf(stderr, "==> got %d %s", num, buf);
+ (void) fprintf(stderr, " > li `%.*s_%.*s'\n",
+ (li->cursor - li->buffer), li->buffer,
+ (li->lastchar - 1 - li->cursor),
+ (li->cursor >= li->lastchar) ? "" : li->cursor);
+
+#endif
+ if (gotsig) {
+ (void) fprintf(stderr, "Got signal %d.\n", gotsig);
+ gotsig = 0;
+ el_reset(el);
+ }
+
+ if (!continuation && num == 1)
+ continue;
+
+ ac = cc = co = 0;
+ ncontinuation = tok_line(tok, li, &ac, &av, &cc, &co);
+ if (ncontinuation < 0) {
+ (void) fprintf(stderr, "Internal error\n");
+ continuation = 0;
+ continue;
+ }
+#ifdef DEBUG
+ (void) fprintf(stderr, " > nc %d ac %d cc %d co %d\n",
+ ncontinuation, ac, cc, co);
+#endif
+#if 0
+ if (continuation) {
+ /*
+ * Append to the right event in case the user
+ * moved around in history.
+ */
+ if (history(hist, &ev, H_SET, lastevent) == -1)
+ err(1, "%d: %s", lastevent, ev.str);
+ history(hist, &ev, H_ADD , buf);
+ } else {
+ history(hist, &ev, H_ENTER, buf);
+ lastevent = ev.num;
+ }
+#else
+ /* Simpler */
+ history(hist, &ev, continuation ? H_APPEND : H_ENTER, buf);
+#endif
+
+ continuation = ncontinuation;
+ ncontinuation = 0;
+ if (continuation)
+ continue;
+#ifdef DEBUG
+ for (i = 0; i < ac; i++) {
+ (void) fprintf(stderr, " > arg# %2d ", i);
+ if (i != cc)
+ (void) fprintf(stderr, "`%s'\n", av[i]);
+ else
+ (void) fprintf(stderr, "`%.*s_%s'\n",
+ co, av[i], av[i] + co);
+ }
+#endif
+
+ if (strcmp(av[0], "history") == 0) {
+ int rv;
+
+ switch (ac) {
+ case 1:
+ for (rv = history(hist, &ev, H_LAST); rv != -1;
+ rv = history(hist, &ev, H_PREV))
+ (void) fprintf(stdout, "%4d %s",
+ ev.num, ev.str);
+ break;
+
+ case 2:
+ if (strcmp(av[1], "clear") == 0)
+ history(hist, &ev, H_CLEAR);
+ else
+ goto badhist;
+ break;
+
+ case 3:
+ if (strcmp(av[1], "load") == 0)
+ history(hist, &ev, H_LOAD, av[2]);
+ else if (strcmp(av[1], "save") == 0)
+ history(hist, &ev, H_SAVE, av[2]);
+ break;
+
+ badhist:
+ default:
+ (void) fprintf(stderr,
+ "Bad history arguments\n");
+ break;
+ }
+ } else if (el_parse(el, ac, av) == -1) {
+ switch (fork()) {
+ case 0:
+ execvp(av[0], (char *const *)__UNCONST(av));
+ perror(av[0]);
+ _exit(1);
+ /*NOTREACHED*/
+ break;
+
+ case -1:
+ perror("fork");
+ break;
+
+ default:
+ if (wait(&num) == -1)
+ perror("wait");
+ (void) fprintf(stderr, "Exit %x\n", num);
+ break;
+ }
+ }
+
+ tok_reset(tok);
+ }
+
+ el_end(el);
+ tok_end(tok);
+ history_end(hist);
+
+ return (0);
+}