diff -r 302971e8599b -r 9dd76cbd6c90 src/error.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/error.c	Wed Nov 01 21:00:33 2023 +0100
@@ -0,0 +1,71 @@
+/*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
+ * Copyright 2023 Mike Becker. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *   1. Redistributions of source code must retain the above copyright
+ *      notice, this list of conditions and the following disclaimer.
+ *
+ *   2. Redistributions in binary form must reproduce the above copyright
+ *      notice, this list of conditions and the following disclaimer in the
+ *      documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "ascension/context.h"
+#include "ascension/error.h"
+#include "ascension/utils.h"
+
+#include <cx/buffer.h>
+
+void asc_error_cchar(char const* text) {
+    asc_error_cxstr(cx_str(text));
+}
+
+void asc_error_cuchar(unsigned char const* text) {
+    asc_error_cxstr(cx_str((char const*)text));
+}
+
+void asc_error_cxstr(cxstring text) {
+    if (text.length == 0) return;
+
+    // write error to debug output
+    asc_dprintf("ERROR: %*.s", (int)text.length, text.ptr);
+
+    // write error to buffer
+    CxBuffer* buf = &asc_context.error_buffer;
+    cxBufferWrite(text.ptr, 1, text.length, buf);
+    cxBufferPut(buf, '\n');
+
+    asc_set_flag(&asc_context.flags, ASC_FLAG_HAS_ERROR);
+}
+
+bool asc_has_error(void) {
+    return asc_test_flag(asc_context.flags, ASC_FLAG_HAS_ERROR);
+}
+
+char const* asc_get_error(void) {
+    // we zero-terminate the current buffer contents before providing them
+    cxBufferPut(&asc_context.error_buffer, 0);
+    --asc_context.error_buffer.pos;
+    --asc_context.error_buffer.size;
+    return asc_context.error_buffer.space;
+}
+
+void asc_clear_error(void) {
+    cxBufferClear(&asc_context.error_buffer);
+    asc_clear_flag(&asc_context.flags, ASC_FLAG_HAS_ERROR);
+}