(decode_add_er_char): Must to quote prefix string as regexp.

diff --git a/src/text-coding.c b/src/text-coding.c
index 4b8f2d2..9b6e7dc 100644 (file)
--- a/src/text-coding.c
+++ b/src/text-coding.c
@@ -3295,6 +3295,7 @@ decode_add_er_char (struct decoding_stream *str, Emchar c,
            pat = ret;
          else
            continue;
+         pat = Fregexp_quote (pat);
 
          cell = Fcdr (cell);
          cell = Fcdr (cell);