DAMN, i still don't get it, i really don't want to ask some AI to do it but damn, i'm finding it REALLY difficult, is like the 4th article i read, i hope this is the one and that i can get going for fucks sake

include/parser.h

@@ -9,9 +9,13 @@ typedef struct {
     size_t pos;
 } ASTNodeSlice;
 
-ASTNode *nud(ASTNodeSlice *slice, size_t pos);
-ASTNode *led(ASTNodeSlice *slice, size_t pos, size_t right_precedence);
+ASTNode ASTNodeSlice_peek(ASTNodeSlice slice);
+ASTNode ASTNodeSlice_next(ASTNodeSlice slice);
+
+ASTNode *nud(ASTNodeSlice *slice);
+ASTNode *led(ASTNodeSlice *slice, size_t right_precedence);
 
 size_t node_lbp(ASTNode node);
 size_t node_rbp(ASTNode node);
 AST parse(ASTNodeArray arr);
+AST parse_expr(ASTNodeSlice *arr);