diff options
Diffstat (limited to 're.c')
-rw-r--r-- | re.c | 3 |
1 files changed, 2 insertions, 1 deletions
@@ -3731,7 +3731,8 @@ rb_reg_regsub(VALUE str, VALUE src, struct re_registers *regs, VALUE regexp) if (name_end < e) { VALUE n = rb_str_subseq(str, (long)(name - RSTRING_PTR(str)), (long)(name_end - name)); - if (!rb_enc_compatible(RREGEXP_SRC(regexp), n) || + if (NIL_P(regexp) || + !rb_enc_compatible(RREGEXP_SRC(regexp), n) || (no = name_to_backref_number(regs, regexp, name, name_end)) < 1) { name_to_backref_error(n); } |