[Emacs-diffs] master fbbc257: Give a better error message when reading invalid "\unicode" escapes.

[Lars Ingebrigtsen]

branch: master
commit fbbc257190d115dc76e1a8cf4e4992d52d7f55b9
Author: Lars Ingebrigtsen <address@hidden>
Commit: Lars Ingebrigtsen <address@hidden>

    Give a better error message when reading invalid "\unicode" escapes.
    
    * src/lread.c (read_escape): Give a clearer error message on
    Unicode escape sequences (bug#36988).
---
 src/lread.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/lread.c b/src/lread.c
index e444830..6ae7a0d 100644
--- a/src/lread.c
+++ b/src/lread.c
@@ -2585,7 +2585,8 @@ read_escape (Lisp_Object readcharfun, bool stringp)
               want.  */
            int digit = char_hexdigit (c);
            if (digit < 0)
-             error ("Non-hex digit used for Unicode escape");
+             error ("Non-hex character used for Unicode escape: %c (%d)",
+                    c, c);
            i = (i << 4) + digit;
          }
        if (i > 0x10FFFF)