From f2083b42b26ef525fdf6e51a7b685c8c0177e5da Mon Sep 17 00:00:00 2001
From: Rob Swindell <rob@synchro.net>
Date: Sat, 22 May 2021 15:51:51 -0700
Subject: [PATCH] Character 255 is a non-breaking space in CP437
Now IS_WHITESPACE() will return true for that char and this allows things like truncsp() to truncate trailing white-space (e.g. from a FILE_ID.DIZ), even if it contains a terminating 0xFF character for some unknown reason.
---
src/xpdev/gen_defs.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/src/xpdev/gen_defs.h b/src/xpdev/gen_defs.h
index d615693e74..b42e3412b4 100644
--- a/src/xpdev/gen_defs.h
+++ b/src/xpdev/gen_defs.h
@@ -37,6 +37,7 @@
#ifndef _GEN_DEFS_H
#define _GEN_DEFS_H
+#include "cp437defs.h"
#include <errno.h>
/* Resolve multi-named errno constants */
@@ -451,7 +452,7 @@ typedef struct {
/* ASCIIZ char* parsing helper macros */
/* These (unsigned char) typecasts defeat MSVC debug assertion when passed a negative value */
-#define IS_WHITESPACE(c) isspace((unsigned char)(c))
+#define IS_WHITESPACE(c) (isspace((unsigned char)(c)) || c == CP437_NO_BREAK_SPACE)
#define IS_CONTROL(c) iscntrl((unsigned char)(c))
#define IS_ALPHA(c) isalpha((unsigned char)(c))
#define IS_ALPHANUMERIC(c) isalnum((unsigned char)(c))
--
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