diff options
Diffstat (limited to 'io.c')
-rw-r--r-- | io.c | 6 |
1 files changed, 5 insertions, 1 deletions
@@ -3411,7 +3411,11 @@ io_getc(rb_io_t *fptr, rb_encoding *enc) } else { io_shift_cbuf(fptr, MBCLEN_CHARFOUND_LEN(r), &str); - cr = ISASCII(r) ? ENC_CODERANGE_7BIT : ENC_CODERANGE_VALID; + cr = ENC_CODERANGE_VALID; + if (MBCLEN_CHARFOUND_LEN(r) == 1 && rb_enc_asciicompat(read_enc) && + ISASCII(RSTRING_PTR(str)[0])) { + cr = ENC_CODERANGE_7BIT; + } } str = io_enc_str(str, fptr); ENC_CODERANGE_SET(str, cr); |