feat(dev): expansion

src/expansion/expansion.c

@@ -115,11 +115,10 @@ static bool expand_var(char **str, size_t pos, const struct hash_map *vars)
     return false;
 }
 
-struct ast_command *expand(struct ast_command *command,
-                           const struct hash_map *vars)
+bool expand(struct ast_command *command, const struct hash_map *vars)
 {
     if (command == NULL)
-        return NULL;
+        return false;
 
     char *str;
     size_t len;
@@ -150,7 +149,7 @@ struct ast_command *expand(struct ast_command *command,
                 // variable expansion
                 bool r = expand_var(&str, i, vars);
                 if (r == false || str == NULL)
-                    return NULL;
+                    return false;
 
                 i--; // -1 because loop will increment i
             }
@@ -160,7 +159,7 @@ struct ast_command *expand(struct ast_command *command,
         {
             // error: quote not closed
             fprintf(stderr, "Error: quote not closed in string: %s\n", str);
-            return NULL;
+            return false;
         }
 
         if (len != strlen(str))
@@ -169,12 +168,12 @@ struct ast_command *expand(struct ast_command *command,
             if (new_str == NULL)
             {
                 // error: realloc fail
-                return NULL;
+                return false;
             }
             l->data = new_str;
         }
 
         l = l->next;
     }
-    return command;
+    return true;
 }

src/expansion/expansion.h

@@ -1,6 +1,7 @@
 #ifndef EXPANSION_H
 #define EXPANSION_H
 
+#include <stdbool.h>
 #include <stddef.h>
 
 #include "../utils/hash_map/hash_map.h"
@@ -20,7 +21,6 @@ size_t parse_var_name(char *str, char **res);
  * @param vars The hash map containing variables.
  * @return A new AST command with variables expanded, or NULL on error.
  */
-struct ast_command *expand(struct ast_command *command,
-                           const struct hash_map *vars);
+bool expand(struct ast_command *command, const struct hash_map *vars);
 
 #endif /* ! EXPANSION_H */