bk403nv/usaa24
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

sk1

Browse Source
This commit is contained in:
Bohdan Kapliuk 2025-01-12 17:01:23 +02:00
parent 629d0194ea
commit 6e906c76fc
2 changed files with 28 additions and 49 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
sk1/compressor.c
View File

@ -100,7 +100,7 @@ int decompress_1(const char* input_file_name, const char* output_file_name) {
free(data); free(data);
free(decompressed); free(decompressed);
return 0; return result == 0 ? (int)out_size : -1;
} }
// LZ78 // LZ78

75
sk1/main.c
View File

@ -1,66 +1,45 @@
#include "compressor.h"
#include <stdio.h> #include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
#include <string.h> #include <string.h>
#include "compressor.h"
void print_help() { void print_usage() {
printf("Použitie:\n"); printf("Usage:\n");
printf(" ./compressor -c infile outfile # Kompresia pomocou algoritmu RLE\n"); printf("./compressor -c infile outfile\n");
printf(" ./compressor -d infile outfile # Dekompresia pomocou algoritmu RLE\n"); printf("./compressor -d infile outfile\n");
printf(" ./compressor -c2 infile outfile # Kompresia pomocou algoritmu LZ78\n"); printf("./compressor -h\n");
printf(" ./compressor -d2 infile outfile # Dekompresia pomocou algoritmu LZ78\n");
printf(" ./compressor -h # Zobrazit pomoc\n");
} }
int main(int argc, char* argv[]) { int main(int argc, char* argv[]) {
if (argc < 2) { if (argc < 4) {
fprintf(stderr, "Chyba: Chybaju argumenty. Pouzite -h pre zobrazenie pomoci.\n"); print_usage();
return -1; return 1;
}
if (strcmp(argv[1], "-h") == 0) {
print_help();
return -1;
}
if ((strcmp(argv[1], "-c") == 0 || strcmp(argv[1], "-d") == 0 ||
strcmp(argv[1], "-c2") == 0 || strcmp(argv[1], "-d2") == 0) && argc != 4) {
fprintf(stderr, "Chyba: Nespravny pocet argumentov. Pouzite -h pre zobrazenie pomoci.\n");
return -1;
} }
const char* operation = argv[1];
const char* input_file = argv[2]; const char* input_file = argv[2];
const char* output_file = argv[3]; const char* output_file = argv[3];
int result = 0;
if (strcmp(argv[1], "-c") == 0) { int result = 1;
result = compress_1(input_file, output_file);
if (result < 0) { if (strcmp(operation, "-c") == 0) {
fprintf(stderr, "Chyba: Kompresia zlyhala.\n"); if (compress_1(input_file, output_file) == 0) {
return -1; result = 0;
} else if (compress_2(input_file, output_file) == 0) {
result = 0;
} }
} else if (strcmp(argv[1], "-d") == 0) { } else if (strcmp(operation, "-d") == 0) {
result = decompress_1(input_file, output_file); if (decompress_1(input_file, output_file) == 0) {
if (result < 0) { result = 0;
fprintf(stderr, "Chyba: Dekompresia zlyhala.\n"); } else if (decompress_2(input_file, output_file) == 0) {
return -1; result = 0;
}
} else if (strcmp(argv[1], "-c2") == 0) {
result = compress_2(input_file, output_file);
if (result < 0) {
fprintf(stderr, "Chyba: Kompresia zlyhala.\n");
return -1;
}
} else if (strcmp(argv[1], "-d2") == 0) {
result = decompress_2(input_file, output_file);
if (result < 0) {
fprintf(stderr, "Chyba: Dekompresia zlyhala.\n");
return -1;
} }
} else if (strcmp(operation, "-h") == 0) {
print_usage();
result = 0;
} else { } else {
fprintf(stderr, "Chyba: Neznámy argument. Použite -h pre zobrazenie pomoci.\n"); print_usage();
return -1;
} }
return 0; return result;
} }