int
main(int argc, const char *argv[]) {
FILE *fp;
const char *fname;
sauchar_t *T;
saidx_t *SA;
LFS_OFF_T n;
clock_t start, finish;
saint_t needclose = 1;
/* Check arguments. */
if((argc == 1) ||
(strcmp(argv[1], "-h") == 0) ||
(strcmp(argv[1], "--help") == 0)) { print_help(argv[0], EXIT_SUCCESS); }
if(argc != 2) { print_help(argv[0], EXIT_FAILURE); }
/* Open a file for reading. */
if(strcmp(argv[1], "-") != 0) {
#if HAVE_FOPEN_S
if(fopen_s(&fp, fname = argv[1], "rb") != 0) {
#else
if((fp = LFS_FOPEN(fname = argv[1], "rb")) == NULL) {
#endif
fprintf(stderr, "%s: Cannot open file `%s': ", argv[0], fname);
perror(NULL);
exit(EXIT_FAILURE);
}
} else {
#if HAVE__SETMODE && HAVE__FILENO
if(_setmode(_fileno(stdin), _O_BINARY) == -1) {
fprintf(stderr, "%s: Cannot set mode: ", argv[0]);
perror(NULL);
exit(EXIT_FAILURE);
}
#endif
fp = stdin;
fname = "stdin";
needclose = 0;
}
/* Get the file size. */
if(LFS_FSEEK(fp, 0, SEEK_END) == 0) {
n = LFS_FTELL(fp);
rewind(fp);
if(n < 0) {
fprintf(stderr, "%s: Cannot ftell `%s': ", argv[0], fname);
perror(NULL);
exit(EXIT_FAILURE);
}
if(0x7fffffff <= n) {
fprintf(stderr, "%s: Input file `%s' is too big.\n", argv[0], fname);
exit(EXIT_FAILURE);
}
} else {
fprintf(stderr, "%s: Cannot fseek `%s': ", argv[0], fname);
perror(NULL);
exit(EXIT_FAILURE);
}
/* Allocate 5n bytes of memory. */
T = (sauchar_t *)malloc((size_t)n * sizeof(sauchar_t));
SA = (saidx_t *)malloc((size_t)n * sizeof(saidx_t));
if((T == NULL) || (SA == NULL)) {
fprintf(stderr, "%s: Cannot allocate memory.\n", argv[0]);
exit(EXIT_FAILURE);
}
/* Read n bytes of data. */
if(fread(T, sizeof(sauchar_t), (size_t)n, fp) != (size_t)n) {
fprintf(stderr, "%s: %s `%s': ",
argv[0],
(ferror(fp) || !feof(fp)) ? "Cannot read from" : "Unexpected EOF in",
argv[1]);
perror(NULL);
exit(EXIT_FAILURE);
}
if(needclose & 1) { fclose(fp); }
/* Construct the suffix array. */
//~ fprintf(stderr, "%s: %" PRIdOFF_T " bytes ... ", fname, n);
//~ start = clock();
if(divsufsort(T, SA, (saidx_t)n) != 0) {
fprintf(stderr, "%s: Cannot allocate memory.\n", argv[0]);
exit(EXIT_FAILURE);
}
//~ finish = clock();
//~ fprintf(stderr, "%.4f sec\n", (double)(finish - start) / (double)CLOCKS_PER_SEC);
/* Check the suffix array. */
//~ if(sufcheck(T, SA, (saidx_t)n, 1) != 0) { exit(EXIT_FAILURE); }
/* Deallocate memory. */
free(SA);
free(T);
return 0;
}
int
main(int argc, const char *argv[]) {
FILE *fp;
const char *P;
sauchar_t *T;
saidx_t *SA;
LFS_OFF_T n;
size_t Psize;
saidx_t i, size, left;
if((argc == 1) ||
(strcmp(argv[1], "-h") == 0) ||
(strcmp(argv[1], "--help") == 0)) { print_help(argv[0], EXIT_SUCCESS); }
if(argc != 4) { print_help(argv[0], EXIT_FAILURE); }
P = argv[1];
Psize = strlen(P);
/* Open a file for reading. */
#if HAVE_FOPEN_S
if(fopen_s(&fp, argv[2], "rb") != 0) {
#else
if((fp = LFS_FOPEN(argv[2], "rb")) == NULL) {
#endif
fprintf(stderr, "%s: Cannot open file `%s': ", argv[0], argv[2]);
perror(NULL);
exit(EXIT_FAILURE);
}
/* Get the file size. */
if(LFS_FSEEK(fp, 0, SEEK_END) == 0) {
n = LFS_FTELL(fp);
rewind(fp);
if(n < 0) {
fprintf(stderr, "%s: Cannot ftell `%s': ", argv[0], argv[2]);
perror(NULL);
exit(EXIT_FAILURE);
}
} else {
fprintf(stderr, "%s: Cannot fseek `%s': ", argv[0], argv[2]);
perror(NULL);
exit(EXIT_FAILURE);
}
/* Allocate 5n bytes of memory. */
T = (sauchar_t *)malloc((size_t)n * sizeof(sauchar_t));
SA = (saidx_t *)malloc((size_t)n * sizeof(saidx_t));
if((T == NULL) || (SA == NULL)) {
fprintf(stderr, "%s: Cannot allocate memory.\n", argv[0]);
exit(EXIT_FAILURE);
}
/* Read n bytes of data. */
if(fread(T, sizeof(sauchar_t), (size_t)n, fp) != (size_t)n) {
fprintf(stderr, "%s: %s `%s': ",
argv[0],
(ferror(fp) || !feof(fp)) ? "Cannot read from" : "Unexpected EOF in",
argv[2]);
perror(NULL);
exit(EXIT_FAILURE);
}
fclose(fp);
/* Open the SA file for reading. */
#if HAVE_FOPEN_S
if(fopen_s(&fp, argv[3], "rb") != 0) {
#else
if((fp = LFS_FOPEN(argv[3], "rb")) == NULL) {
#endif
fprintf(stderr, "%s: Cannot open file `%s': ", argv[0], argv[3]);
perror(NULL);
exit(EXIT_FAILURE);
}
/* Read n * sizeof(saidx_t) bytes of data. */
if(fread(SA, sizeof(saidx_t), (size_t)n, fp) != (size_t)n) {
fprintf(stderr, "%s: %s `%s': ",
argv[0],
(ferror(fp) || !feof(fp)) ? "Cannot read from" : "Unexpected EOF in",
argv[3]);
perror(NULL);
exit(EXIT_FAILURE);
}
fclose(fp);
/* Search and print */
size = sa_search(T, (saidx_t)n,
(const sauchar_t *)P, (saidx_t)Psize,
SA, (saidx_t)n, &left);
for(i = 0; i < size; ++i) {
fprintf(stdout, "%" PRIdSAIDX_T "\n", SA[left + i]);
}
/* Deallocate memory. */
free(SA);
free(T);
return 0;
}
