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bfi.c
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bfi.c
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/*
* Brainf*ck interpreter.
*
* Copyright (c) 2019 Zeling Feng
*
* MIT License
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED *AS IS*, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "bf.h"
#include "jit.h"
static void die(const char *msg)
{
perror(msg);
exit(1);
}
void usage(const char *name)
{
printf("%s [-j] [-n npage] [file]\n", name);
exit(2);
}
int main(int argc, char **argv)
{
FILE *src;
bf_t bf;
int opt, jit = 0, npage = 2;
while ((opt = getopt(argc, argv, "jp:")) != -1) {
switch (opt) {
case 'j':
jit = 1;
break;
case 'p':
npage = atoi(optarg);
if (npage <= 0) {
puts("npage must be positive");
usage(argv[0]);
}
break;
default:
printf("Unrecognized option: %c\n", opt);
usage(argv[0]);
}
}
if (optind >= argc) {
src = stdin;
} else {
src = fopen(argv[optind], "r");
if (!src) {
die("fopen");
}
}
if (jit) {
bf_init_jit(&bf);
} else {
bf_init(&bf);
}
if (bf_load_file(&bf, src) < 0) {
die("bf_load_file");
}
if (bf_run(&bf, npage) < 0) {
die("bf_run");
}
bf_free(&bf);
return 0;
}