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/*
* SPL - The SPL Programming Language
* Copyright (C) 2004, 2005 Clifford Wolf <clifford@clifford.at>
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* mod_prime.c: A simple example for CLIB handled namespaces
*/
/**
* Example Module for hosted namespaces
*/
#define _GNU_SOURCE
#include <stdlib.h>
#include <string.h>
#include "spl.h"
#include "compat.h"
/**
* This is an example hosted namespace. Numeric keys which are prime do point
* to true values, other numerical keys point to false values and non-numerical
* keys are undeclared. Example:
*
* debug "declared prime['foo'] = " ~ declared prime['foo'];
* debug "prime[5] = " ~ prime[5];
* debug "prime[6] = " ~ prime[6];
*
* This is just an example for writing modules which provide hosted namespaces.
* It is not really meant to be used in any applications.
*/
// namespace prime;
extern void SPL_ABI(spl_mod_prime_init)(struct spl_vm *vm, struct spl_module *mod, int restore);
extern void SPL_ABI(spl_mod_prime_done)(struct spl_vm *vm, struct spl_module *mod);
static void handler_primenode(struct spl_task *task UNUSED, struct spl_vm *vm UNUSED,
struct spl_node *node UNUSED, struct spl_hnode_args *args, void *data UNUSED)
{
if (args->action == SPL_HNODE_ACTION_LOOKUP)
{
const char *key = args->key;
while ( *key == '?' ) key++;
if (*key < '0' || *key > '9') return;
int keyval = atoi(key);
if (keyval < 2) {
args->value = SPL_NEW_INT(0);
return;
}
for (int i=2; i<keyval; i++)
if ( keyval%i == 0 ) {
args->value = SPL_NEW_INT(0);
return;
}
args->value = SPL_NEW_INT(1);
return;
}
if (args->action == SPL_HNODE_ACTION_CREATE)
{
const char *key = args->key;
while ( *key == '?' ) key++;
printf("You tried 'prime.[%s] = %d'. Please do not define your own prime numbers!\n", key, spl_get_int(args->value));
fflush(stdout);
return;
}
if (args->action == SPL_HNODE_ACTION_DELETE)
{
printf("You called method 'delete' in prime namespace. Primes are read-only!\n");
fflush(stdout);
}
// printf("You called unhandled action '%d' in prime namespace.\n", args->action);
// fflush(stdout);
}
void SPL_ABI(spl_mod_prime_init)(struct spl_vm *vm, struct spl_module *mod, int restore)
{
spl_hnode_reg(vm, "prime", handler_primenode, 0);
if ( !restore )
spl_hnode(vm, vm->root, "prime", "prime", mod);
}
void SPL_ABI(spl_mod_prime_done)(struct spl_vm *vm UNUSED, struct spl_module *mod UNUSED)
{
return;
}
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