feat: redirection rules

src/utils/ast/ast_word.c

@@ -0,0 +1,45 @@
+#include "ast_word.h"
+
+#include <stdbool.h>
+#include <stdlib.h>
+#include <string.h>
+
+struct ast *ast_create_word(char *word)
+{
+    struct ast_word *ast_node = malloc(sizeof(struct ast_word));
+    if (ast_node == NULL)
+        return NULL;
+
+    ast_node->type = AST_WORD;
+    ast_node->word = strdup(word);
+    struct ast *res = ast_create(AST_WORD, ast_node);
+    if (res == NULL)
+    {
+        free(ast_node);
+        return NULL;
+    }
+
+    return res;
+}
+
+struct ast_word *ast_get_word(struct ast *node)
+{
+    if (node == NULL || node->type != AST_WORD)
+        return NULL;
+
+    return node->data;
+}
+
+bool ast_is_word(struct ast *node)
+{
+    return node && node->type == AST_WORD;
+}
+
+void ast_free_word(struct ast_word *ast_node)
+{
+    if (ast_node == NULL)
+        return;
+
+    free(ast_node->word);
+    free(ast_node);
+}