refactor: spread across files

main.c

@@ -0,0 +1,34 @@
+#include <stdio.h>
+
+#define NOB_IMPLEMENTATION
+#include "lisp.h"
+
+int main(int argc, char **argv) {
+    if (argc < 2)
+        return 1;
+
+    argv++;
+    const char *line = *argv++;
+    Nob_String_View view = nob_sv_from_cstr(line);
+
+    Tokens tokens = {0};
+    tokenize(view, &tokens);
+
+#if 0
+    for (size_t i = 0; i < tokens.count; i++) {
+        Token tok = tokens.items[i];
+        printf("Token(kind=%s, data=" SV_Fmt ")\n", token_kind_name(tok.kind),
+               SV_Arg(tok.data));
+    }
+#endif
+
+    Node *result = parse(&tokens);
+    if (result == NULL)
+        return 1;
+
+    result = eval(result);
+    node_print(*result);
+    printf("\n");
+
+    return 0;
+}