Add C interface for Unicode character property table.

[bpt/emacs.git] / src / dispextern.h

diff --git a/src/dispextern.h b/src/dispextern.h
index 57fa09d..c0a6769 100644 (file)
--- a/src/dispextern.h
+++ b/src/dispextern.h
@@ -1773,7 +1773,11 @@ extern int face_change_count;
 /* Data type for describing the bidirectional character types.  The
    first 7 must be at the beginning, because they are the only values
    valid in the `bidi_type' member of `struct glyph'; we only reserve
-   3 bits for it, so we cannot use there values larger than 7.  */
+   3 bits for it, so we cannot use there values larger than 7.
+
+   The order of members must be in sync with the 8th element of the
+   member of unidata-prop-alist (in admin/unidata/unidata-getn.el) for
+   Unicode character property `bidi-class'.  */
 typedef enum {
   UNKNOWN_BT = 0,
   STRONG_L,    /* strong left-to-right */