(CHAR_CHARSET_P): Fix for the case that the method is subset or

superset.

1 files changed, 5 insertions, 3 deletions

diff --git a/src/charset.h b/src/charset.h
index 18fdcfb16c0..0965bb29d2c 100644
--- a/src/charset.h
+++ b/src/charset.h
@@ -110,8 +110,8 @@ enum charset_attr_index
     charset_unify_map,
 
     /* If characters in the charset must be unified Unicode, the value
-       is a char table that maps a character code in the charset to
-       the corresponding Unicode character.  */
+       is a char table that maps a unified Unicode character code to
+       the non-unified character code in the charset.  */
     charset_deunifier,
 
     /* The length of the charset attribute vector.  */
@@ -484,7 +484,9 @@ extern int iso_charset_table[ISO_MAX_DIMENSION][ISO_MAX_CHARS][ISO_MAX_FINAL];
 /* 1 iff CHARSET may contain the character C.  */
 #define CHAR_CHARSET_P(c, charset)                                       \
   ((ASCII_CHAR_P (c) && (charset)->ascii_compatible_p)                   \
-   || (CHARSET_UNIFIED_P (charset)                                       \
+   || ((CHARSET_UNIFIED_P (charset)                                      \
+        || (charset)->method == CHARSET_METHOD_SUBSET                    \
+        || (charset)->method == CHARSET_METHOD_SUPERSET)                 \
        ? encode_char ((charset), (c)) != (charset)->invalid_code         \
        : (CHARSET_FAST_MAP_REF ((c), (charset)->fast_map)                \
           && ((charset)->method == CHARSET_METHOD_OFFSET                 \