From 75daad53eaabc9b1314433e638ce05f3d7ae998d Mon Sep 17 00:00:00 2001
From: Aryadev Chavali <aryadev@aryadevchavali.com>
Date: Thu, 5 Feb 2026 04:06:27 +0000
Subject: [PATCH] reader: add a few more read errors and read_err_to_cstr

---
 include/alisp/reader.h | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/include/alisp/reader.h b/include/alisp/reader.h
index ba6c64d..64dec74 100644
--- a/include/alisp/reader.h
+++ b/include/alisp/reader.h
@@ -8,13 +8,18 @@
 #ifndef READER_H
 #define READER_H
 
+#include <alisp/lisp.h>
 #include <alisp/stream.h>
 
 typedef enum
 {
-  READ_OK = 0,
+  READ_ERR_OK = 0,
+  READ_ERR_EOF,
+  READ_ERR_UNKNOWN_CHAR,
 } read_err_t;
 
+const char *read_err_to_cstr(read_err_t);
+
 // Attempt to read an expression from the stream, storing it in a pointer,
 // returning any errors if failed.
 read_err_t read(sys_t *, stream_t *, lisp_t **);