struct hash *read_map(const char *filename)
{
const unsigned int HASH_SIZE = 1000; /* most trees will have fewer nodes */
const double LOAD_THRESHOLD = 0.8;
const unsigned RESIZE_FACTOR = 10;
FILE *map_file = fopen(filename, "r");
if (NULL == map_file) { perror(NULL); exit(EXIT_FAILURE); }
//struct hash *map = create_hash(HASH_SIZE);
struct hash *map = create_dynamic_hash(HASH_SIZE,
LOAD_THRESHOLD, RESIZE_FACTOR);
if (NULL == map) { perror(NULL); exit(EXIT_FAILURE); }
char *line;
while (NULL != (line = read_line(map_file))) {
/* Skip comments and lines that are empty or all whitespace */
if ('#' == line[0] || is_all_whitespace(line)) {
free(line);
continue;
}
char *key, *value;
struct word_tokenizer *wtok = create_word_tokenizer(line);
if (NULL == wtok) { perror(NULL); exit(EXIT_FAILURE); }
key = wt_next(wtok); /* find first whitespace */
if (NULL == key) {
fprintf (stderr,
"Wrong format in line '%s' - aborting.\n",
line);
exit(EXIT_FAILURE);
}
value = wt_next(wtok);
if (NULL == value) {
/* If 2nd token is NULL, replace label with empty
* string */
value = strdup("");
}
if (! hash_set(map, key, (void *) value)) {
perror(NULL);
exit(EXIT_FAILURE);
}
destroy_word_tokenizer(wtok);
free(key); /* copied by hash_set(), so can be free()d now */
free(line);
}
return map;
}
struct hash *read_map(const char *filename)
{
const int HASH_SIZE = 1000; /* most trees will have fewer nodes */
FILE *map_file = fopen(filename, "r");
if (NULL == map_file) { perror(NULL); exit(EXIT_FAILURE); }
struct hash *map = create_hash(HASH_SIZE);
if (NULL == map) { perror(NULL); exit(EXIT_FAILURE); }
char *line;
while (NULL != (line = read_line(map_file))) {
/* Skip comments and lines that are empty or all whitespace */
if ('#' == line[0] || is_all_whitespace(line)) {
free(line);
continue;
}
char *key, *value;
struct word_tokenizer *wtok = create_word_tokenizer(line);
if (NULL == wtok) { perror(NULL); exit(EXIT_FAILURE); }
key = wt_next(wtok); /* find first whitespace */
if (NULL == key) {
fprintf (stderr,
"Wrong format in line %s - aborting.\n",
line);
exit(EXIT_FAILURE);
}
value = wt_next(wtok);
if (NULL == value) {
fprintf (stderr,
"Wrong format in line %s - aborting.\n",
line);
exit(EXIT_FAILURE);
}
if (! hash_set(map, key, (void *) value)) {
perror(NULL);
exit(EXIT_FAILURE);
}
destroy_word_tokenizer(wtok);
free(key); /* copied by hash_set(), so can be free()d now */
free(line);
}
return map;
}
