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/* This file is part of GNU Dico
Copyright (C) 2003-2024 Sergey Poznyakoff
GNU Dico is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
GNU Dico is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Dico. If not, see <http://www.gnu.org/licenses/>. */
#include <config.h>
#include <dico.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include "itrsh.h"
void
usage(int code)
{
printf("usage: listop..]\n");
exit(code);
}
dico_iterator_t
list_iterator(void *object)
{
return dico_list_iterator(object);
}
void
print_item(void *item)
{
printf("%s", (char*)item);
}
void
delete(void *object, int argc, char **argv)
{
dico_list_t list = object;
while (--argc) {
if (dico_list_remove(list, *++argv, NULL))
dico_log(L_ERR, errno, "dico_list_remove(%s)", *argv);
}
}
void
add(void *object, int argc, char **argv)
{
dico_list_t list = object;
while (--argc) {
if (dico_list_append(list, strdup(*++argv)))
dico_log(L_ERR, errno, "dico_list_append");
}
}
void
prep(void *object, int argc, char **argv)
{
dico_list_t list = object;
while (--argc) {
if (dico_list_prepend(list, strdup(*++argv)))
dico_log(L_ERR, errno, "dico_list_prepend");
}
}
void
find(void *object, int argc, char **argv)
{
dico_iterator_t itr;
char *arg = argv[1];
char *text;
itr = shell_iterator();
for (text = dico_iterator_first(itr);
text;
text = dico_iterator_next(itr)) {
if (strcmp(arg, text) == 0)
return;
}
dico_log(L_ERR, 0, "%s not in list", arg);
}
void
push(void *object, int argc, char **argv)
{
dico_list_t list = object;
while (--argc)
if (dico_list_push(list, strdup(*++argv)))
dico_log(L_ERR, errno, "dico_list_push");
}
void
pop(void *object, int argc, char **argv)
{
dico_list_t list = object;
char *p = dico_list_pop(list);
if (!p)
dico_log(L_NOTICE, 0, "nothing to pop");
else
printf("%s\n", p);
free(p);
}
void
number(void *object, int argc, char **argv)
{
dico_list_t list = object;
char *p;
size_t n = strtoul(argv[0], &p, 0);
if (*p != 0)
fprintf(stderr, "?\n");
else {
char *text = dico_list_item(list, n);
if (!text) {
if (errno == ENOENT)
dico_log(L_ERR, 0, "dico_list_item: item not found");
else
dico_log(L_ERR, errno, "dico_list_item");
return;
}
printf("%s\n", text);
}
}
static int
string_comp(const void *item, const void *value, void *ignored)
{
return strcmp(item, value);
}
struct itr_shell_command cmdtab[] = {
{ "del", 2, 0, delete, "item...", "delete items" },
{ "add", 2, 0, add, "item...", "add new items" },
{ "prep", 2, 0, prep, "item...", "add new items at the beginning" },
{ "find", 2, 2, find, "item", "find item in the list" },
{ "push", 2, 0, push, "item...", "push items to the list" },
{ "pop", 1, 1, pop, "", "pop item from the list" },
{ NULL, 1, 1, number }
};
static size_t
get_count(void *data)
{
return dico_list_count((dico_list_t)data);
}
int
main(int argc, char **argv)
{
struct itr_shell sh;
dico_list_t list;
dico_set_program_name(argv[0]);
while (--argc) {
char *arg = *++argv;
if (strcmp(arg, "-h") == 0)
usage(0);
else if (strcmp(arg, "--") == 0) {
--argc;
++argv;
break;
} else if (arg[0] == '-') {
dico_log(L_ERR, 0, "unknown option %s", arg);
exit(1);
} else
break;
}
list = dico_list_create();
if (!list) {
perror("dico_list_create");
exit(1);
}
dico_list_set_comparator(list, string_comp, NULL);
while (argc--) {
if (dico_list_append(list, *argv++)) {
perror("dico_list_append");
exit(1);
}
}
memset(&sh, 0, sizeof(sh));
sh.object = list;
sh.get_iterator = list_iterator;
sh.print_item = print_item;
sh.count = get_count;
sh.cmdtab = cmdtab;
shell(&sh);
return 0;
}
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