s4:heimdal: import lorikeet-heimdal-202201172009 (commit 5a0b45cd723628b3690ea848548b...
[samba.git] / source4 / heimdal / lib / libedit / examples / tc1.c
diff --git a/source4/heimdal/lib/libedit/examples/tc1.c b/source4/heimdal/lib/libedit/examples/tc1.c
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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);
+}