Add print ast

src/ast/ast_utils.c

@@ -5,13 +5,37 @@
 ** _
 */
 
+#include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>
 
 #include "ast.h"
+#include "debug.h"
 #include "u_mem.h"
 #include "u_str.h"
 
+void print_ast(ast_t *ast, ast_ctx_t *ctx, size_t depth)
+{
+    for (size_t i = 0; i < depth; i++)
+        printf(" ");
+    if (depth)
+        printf("- ");
+    printf("(%.*s)\n", (int)ast->tok.sz, ast->tok.str);
+    if (ast->type == N_BIN) {
+        print_ast(ast->binary.left, ctx, depth + 1);
+        print_ast(ast->binary.right, ctx, depth + 1);
+    }
+    if (ast->type == N_CMD) {
+        for (size_t i = 0; i < ast->vector.sz; i++)
+            printf("%*s - (%.*s)\n", (int)depth, "",
+                (int)ast->vector.tokens[i].sz, ast->vector.tokens[i].str);
+    }
+    if (ast->type == N_LST) {
+        for (size_t i = 0; i < ast->list.sz; i++)
+            print_ast(ast->list.nodes[i], ctx, depth + 1);
+    }
+}
+
 bool parser_eat(ast_ctx_t *ctx, token_type_t expected)
 {
     token_type_t prev_tok_type = ctx->act_tok.type;