* transcode.c (transcode_loop): undefined character is replaced with

  only one character. [ruby-dev:35709]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@18312 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 5 insertions, 0 deletions

diff --git a/transcode.c b/transcode.c
index 4ad1f6fb05..f79ad6dbda 100644
--- a/transcode.c
+++ b/transcode.c
@@ -186,6 +186,7 @@ transcode_loop(const unsigned char **in_pos, unsigned char **out_pos,
     unsigned char next_byte;
     int from_utf8 = my_transcoder->from_utf8;
     unsigned char *out_s = out_stop - my_transcoder->max_output + 1;
+    rb_encoding *from_encoding = rb_enc_find(my_transcoder->from_encoding);
     rb_encoding *to_encoding = rb_enc_find(my_transcoder->to_encoding);
 
     while (in_p < in_stop) {
@@ -277,6 +278,10 @@ transcode_loop(const unsigned char **in_pos, unsigned char **out_pos,
 	/* valid character in from encoding
 	 * but no related character(s) in to encoding */
 	/* todo: add more alternative behaviors */
+	{
+	    int len = rb_enc_mbclen((const char *)char_start, (const char *)in_stop, from_encoding);
+	    while (in_p < char_start + len) in_p++;
+	}
 	if (opt&UNDEF_IGNORE) {
 	    continue;
 	}