'
This commit is contained in:
parent
5f4d6af9c0
commit
afe78e4401
7 changed files with 131 additions and 93 deletions
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@ -27,7 +27,7 @@ size_t hash(const char *key)
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return hash;
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}
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struct hash_map *hashMapInit(size_t size)
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struct hash_map *hashmap_init(size_t size)
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{
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struct pair_list **data = calloc(size, sizeof(struct pair_list));
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struct hash_map *map = malloc(sizeof(struct hash_map));
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@ -36,8 +36,8 @@ struct hash_map *hashMapInit(size_t size)
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return map;
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}
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bool hashMapInsert(struct hash_map *hash_map, const char *key, char *value,
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bool *updated)
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bool hashmap_insert(struct hash_map *hash_map, char *key, void *value,
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bool *updated)
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{
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if (hash_map == NULL || hash_map->data == NULL || hash_map->size == 0)
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{
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@ -79,7 +79,7 @@ bool hashMapInsert(struct hash_map *hash_map, const char *key, char *value,
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return true;
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}
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void hashMapFree(struct hash_map *hash_map)
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void hashmap_free(struct hash_map *hash_map)
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{
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if (hash_map == NULL)
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return;
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@ -100,7 +100,10 @@ void hashMapFree(struct hash_map *hash_map)
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free(hash_map);
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}
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void hashMapDump(struct hash_map *hash_map)
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// WARNING
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// Will only work with string values
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// DO NOT attempt to call it with anything else
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void hashmap_dump(struct hash_map *hash_map)
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{
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for (size_t i = 0; i < hash_map->size; i++)
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{
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@ -109,12 +112,14 @@ void hashMapDump(struct hash_map *hash_map)
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if (entry != NULL)
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{
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is_null = false;
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printf("%s: %s", entry->key, entry->value);
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char *val = entry->value;
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printf("%s: %s", entry->key, val);
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entry = entry->next;
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}
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while (entry != NULL)
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{
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printf(", %s: %s", entry->key, entry->value);
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char *val = entry->value;
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printf(", %s: %s", entry->key, val);
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entry = entry->next;
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}
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if (!is_null)
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@ -122,7 +127,7 @@ void hashMapDump(struct hash_map *hash_map)
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}
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}
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const char *hashMapGet(const struct hash_map *hash_map, const char *key)
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void *hashmap_get(const struct hash_map *hash_map, char *key)
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{
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if (hash_map == NULL || hash_map->data == NULL || hash_map->size == 0)
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return NULL;
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@ -139,7 +144,7 @@ const char *hashMapGet(const struct hash_map *hash_map, const char *key)
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return entry->value;
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}
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bool hashMapRemove(struct hash_map *hash_map, const char *key)
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bool hashmap_remove(struct hash_map *hash_map, char *key)
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{
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if (hash_map == NULL || hash_map->size == 0 || hash_map->data == NULL)
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return false;
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@ -1,13 +1,17 @@
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#ifndef HASH_MAP_H
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#define HASH_MAP_H
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#ifndef HASH_MAPS_H
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#define HASH_MAPS_H
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#include <stdbool.h>
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#include <stddef.h>
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// WARNING I made the choice to discard the const qualifier of the key argument
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// To add the possibility to free it.
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// Note that key should *NEVER* be changed once it has been added to the hashmap
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struct pair_list
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{
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const char *key;
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char *value;
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char *key;
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void *value;
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struct pair_list *next;
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};
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@ -18,12 +22,12 @@ struct hash_map
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};
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size_t hash(const char *str);
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struct hash_map *hashMapInit(size_t size);
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bool hashMapInsert(struct hash_map *hash_map, const char *key, char *value,
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struct hash_map *hashmap_init(size_t size);
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bool hashmap_insert(struct hash_map *hash_map, char *key, void *value,
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bool *updated);
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void hashMapFree(struct hash_map *hash_map);
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void hashMapDump(struct hash_map *hash_map);
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const char *hashMapGet(const struct hash_map *hash_map, const char *key);
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bool hashMapRemove(struct hash_map *hash_map, const char *key);
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void hashmap_free(struct hash_map *hash_map);
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void hashmap_dump(struct hash_map *hash_map);
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void *hashmap_get(const struct hash_map *hash_map, char *key);
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bool hashmap_remove(struct hash_map *hash_map, char *key);
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#endif /* ! HASH_MAP_H */
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#endif /* ! HASH_MAPS_H */
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@ -7,13 +7,13 @@
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#include <unistd.h>
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// Helps to match a string (excludes blanks and special characters)
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int isChar(char c)
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int ischar(char c)
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{
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return c != '\0' && !isblank(c) && c != ':' && c != '=' && c != '#'
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&& c != '\n';
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}
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int skipBlanks(char *buf, size_t buf_len)
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int skipblanks(char *buf, size_t buf_len)
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{
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size_t i = 0;
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while (i < buf_len && (isblank(buf[i]) || buf[i] == '\n'))
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@ -22,7 +22,7 @@ int skipBlanks(char *buf, size_t buf_len)
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}
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// Returns 1 if line is blank
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int isBlankLine(struct line *l)
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int isblankline(struct line *l)
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{
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size_t line_size = l->length;
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char *buf = l->buffer;
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@ -42,12 +42,12 @@ int isBlankLine(struct line *l)
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// Returns the next word from buf until buf_len,
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// and the numbers of read characters in *read_chars
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// WARNING allocates the result on the heap
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size_t readWord(char *buf, size_t buf_len, char **word)
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size_t readword(char *buf, size_t buf_len, char **word)
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{
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size_t i = 0;
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size_t res_size = STRING_BUFFER_SIZE;
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char *res = malloc(sizeof(char) * res_size);
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while (i < buf_len && isChar(buf[i]))
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while (i < buf_len && ischar(buf[i]))
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{
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// Reallocate more space if necessary
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if (i >= res_size - 1)
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@ -18,9 +18,9 @@ struct line
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FILE* file_stream; // Full file stream
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};
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int isChar(char c);
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int isBlankLine(struct line *l);
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int skipBlanks(char *buf, size_t buf_len);
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size_t readWord(char *buf, size_t buf_len, char **word);
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int ischar(char c);
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int isblankline(struct line *l);
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int skipblanks(char *buf, size_t buf_len);
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size_t readword(char *buf, size_t buf_len, char **word);
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#endif // LINES_H
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@ -123,5 +123,5 @@ int main(int argc, char **argv)
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if (filename == NULL)
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errx(GENERIC_ERR, "No Makefile found");
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make(filename, flags);
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make(filename, flags, argv[0]);
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}
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@ -15,50 +15,81 @@
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// Static variables
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struct hash_map *variables = NULL;
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struct hash_map *rules = NULL;
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char *program_name;
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// ==== Misc ====
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static void hashmap_deep_free(struct hash_map *hash_map)
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{
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if (hash_map == NULL)
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return;
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if (hash_map->data == NULL)
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return;
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for (size_t i = 0; i < hash_map->size; i++)
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{
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struct pair_list *entry = hash_map->data[i];
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while (entry != NULL)
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{
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struct pair_list *next = entry->next;
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free(entry->key);
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free(entry->value);
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free(entry);
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entry = next;
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}
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}
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free(hash_map->data);
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free(hash_map);
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}
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static void free_all()
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{
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hashmap_deep_free(rules);
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hashmap_deep_free(variables);
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}
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// static void dump_database()
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// {
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// hashmap_dump(variables);
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// hashmap_dump(rules);
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// }
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// ==== Parsing ====
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// Registers a new variable and returns its pointer
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// Registers a new rule in the hashmap
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// WARNING Allocates memory on the heap,
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// the variables hashmap should be freed before exit
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static struct variable *createVariable(char *name)
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// the rules hashmap should be freed before exit
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static void register_rule(char *name, struct list *dependencies,
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struct list *recipe)
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{
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struct variable *res = malloc(sizeof(struct variable));
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res->name = name;
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res->value = NULL;
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struct rule *rule = malloc(sizeof(struct rule));
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rule->name = name;
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rule->dependencies = dependencies;
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rule->recipe = recipe;
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int err = hashMapInsert(variables, name, NULL, NULL);
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int err = hashmap_insert(variables, name, rule, NULL);
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if (!err)
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{
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errx(1, "Internal Error: Couln't add entry for '%s' in the hashmap",
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name);
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}
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}
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// Registers a new variable in the hashmap
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// WARNING Allocates memory on the heap,
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// the variables hashmap should be freed before exit
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static void register_variable(char *name, char *value)
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{
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int err = hashmap_insert(variables, name, value, NULL);
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if (!err)
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{
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// free(name);
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free(res);
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errx(2, "Internal Error: Couln't add entry for '%s' in the hashmap",
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name);
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}
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return res;
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}
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// Registers a new rule and returns its pointer
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// WARNING Allocates memory on the heap,
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// the rules hashmap should be freed before exit
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static struct rule *createRule(char *name)
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{
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struct rule *res = malloc(sizeof(struct rule));
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res->name = name;
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res->dependencies = NULL;
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res->recipe = NULL;
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int err = hashMapInsert(variables, name, NULL, NULL);
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if (!err)
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errx(1, "Internal Error: Couln't add entry for '%s' in the hashmap",
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name);
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return res;
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}
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// Parse dependencies from buf and returns them inside a chained list
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static struct list *readDependencies(struct line *l, size_t offset)
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static struct list *read_deps(struct line *l, size_t offset)
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{
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size_t i = offset;
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size_t buf_size = l->length;
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@ -67,11 +98,11 @@ static struct list *readDependencies(struct line *l, size_t offset)
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while (i < buf_size)
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{
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i += skipBlanks(buf + i, buf_size - i);
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i += skipblanks(buf + i, buf_size - i);
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// Read word
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char *dep_name;
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i += readWord(buf + i, buf_size - i, &dep_name);
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i += readword(buf + i, buf_size - i, &dep_name);
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if (dep_name != NULL)
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// Add to list
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res = list_append(res, dep_name);
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@ -81,7 +112,7 @@ static struct list *readDependencies(struct line *l, size_t offset)
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return res;
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// Unknown chars
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if (!isChar(buf[i]) && !isblank(buf[i]) && buf[i] != '\0'
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if (!ischar(buf[i]) && !isblank(buf[i]) && buf[i] != '\0'
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&& buf[i] != '\n')
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{
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printf("DEBUG: line: %s", l->buffer);
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@ -97,7 +128,7 @@ static struct list *readDependencies(struct line *l, size_t offset)
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// Searches the following lines for recipes and returns them in the form of a
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// list
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// WARNING begins to read the following line
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static struct list *readRecipe(struct line *l)
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static struct list *read_recipe(struct line *l)
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{
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FILE *stream = l->file_stream;
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char *buf = l->buffer;
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@ -111,7 +142,7 @@ static struct list *readRecipe(struct line *l)
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l->number++;
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// Skip blank lines and comments
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if (isBlankLine(l))
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if (isblankline(l))
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continue;
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else if (buf[0] != '\t') // Not a recipe
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{
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@ -134,7 +165,7 @@ static struct list *readRecipe(struct line *l)
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}
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// Reads the value after a variable declaration
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static char *readValue(char *buf, size_t buf_size)
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static char *read_value(char *buf, size_t buf_size)
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{
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size_t i = 0;
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size_t str_buf_size = STRING_BUFFER_SIZE;
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@ -164,48 +195,49 @@ static char *readValue(char *buf, size_t buf_size)
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// Takes a buffer containing the line to parse and it length
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// As well as the line number in the file for error handling
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static void parseLine(struct line *current_line)
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static void parse_line(struct line *current_line)
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{
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char *buf = current_line->buffer;
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size_t line_size = current_line->length;
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size_t i = 0;
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i += skipBlanks(buf + i, line_size - i);
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i += skipblanks(buf + i, line_size - i);
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// Read name
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char *name;
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i += readWord(buf + i, line_size - i, &name);
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i += readword(buf + i, line_size - i, &name);
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// if (name == NULL)
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// errx(1, "Il s'est passé quoi là ? \nUnexpected character at %lu:%lu",
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// current_line->number, i);
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i += skipBlanks(buf + i, line_size - i);
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i += skipblanks(buf + i, line_size - i);
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// Potential elements
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struct rule *new_rule;
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struct variable *new_variable;
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struct list *dependencies;
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struct list *recipe;
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char *value;
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// Definition type
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switch (buf[i])
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{
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// Variable
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case '=':
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new_variable = createVariable(name);
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new_variable->value = readValue(buf + i, line_size);
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value = read_value(buf + i, line_size);
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register_variable(name, value);
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break;
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// Rule
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case ':':
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new_rule = createRule(name);
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new_rule->dependencies = readDependencies(current_line, i + 1);
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new_rule->recipe = readRecipe(current_line);
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dependencies = read_deps(current_line, i + 1);
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recipe = read_recipe(current_line);
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register_rule(name, dependencies, recipe);
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// Check for EOF
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if (current_line->length == -1)
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return;
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parseLine(current_line);
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parse_line(current_line);
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// TODO: check for loooooops
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break;
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@ -228,7 +260,7 @@ static void parseLine(struct line *current_line)
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// free(name);
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}
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void makeParse(char *path)
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void make_parse(char *path)
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{
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// Open file
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FILE *stream = fopen(path, "r");
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@ -236,8 +268,8 @@ void makeParse(char *path)
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errx(2, "Could not open file: %s", path);
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// Init hash maps
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variables = hashMapInit(HASHMAP_SIZE);
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rules = hashMapInit(HASHMAP_SIZE);
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variables = hashmap_init(HASHMAP_SIZE);
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rules = hashmap_init(HASHMAP_SIZE);
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if (variables == NULL || rules == NULL)
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errx(1, "Internal error: Failed to initiate hash maps");
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@ -260,7 +292,7 @@ void makeParse(char *path)
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current_line.buffer = buf;
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current_line.length = nread;
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parseLine(¤t_line);
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parse_line(¤t_line);
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current_line.number += 1;
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}
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@ -274,18 +306,14 @@ void makeParse(char *path)
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// ==== MAKE ====
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void make(char *path, int flags)
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void make(char *path, int flags, char *argv0)
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{
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program_name = argv0;
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if (flags & FLAGS_PRINT)
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errx(GENERIC_ERR, "Not Implemented");
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makeParse(path);
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make_parse(path);
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// dump_database();
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free_all();
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}
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// ==== Misc ====
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// static void free_all()
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// {
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// hashMapFree(rules);
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// hashMapFree(variables);
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// }
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@ -37,6 +37,7 @@ struct rule
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struct list *recipe;
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};
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void make(char *path, int flags);
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void make(char *path, int flags, char* program_name);
|
||||
void make_parse(char *path);
|
||||
|
||||
#endif // ! MINIMAKE_H
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue