From 2d3808eeac6ea951797fa53cb857919aa0d7d4cf Mon Sep 17 00:00:00 2001 From: naruse Date: Mon, 25 Feb 2013 12:18:48 +0000 Subject: * string.c (str_byte_substr): don't set coderange if it's not known. [Bug #7954] [ruby-dev:47108] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39495 b2dd03c8-39d4-4d8f-98ff-823fe69b080e --- string.c | 23 +++++++++++++++++++++-- 1 file changed, 21 insertions(+), 2 deletions(-) (limited to 'string.c') diff --git a/string.c b/string.c index 3bb3c5f3c0..04984f00b7 100644 --- a/string.c +++ b/string.c @@ -4124,10 +4124,29 @@ str_byte_substr(VALUE str, long beg, long len) } else { str2 = rb_str_new5(str, p, len); - rb_enc_cr_str_copy_for_substr(str2, str); - OBJ_INFECT(str2, str); } + str_enc_copy(str2, str); + + if (RSTRING_LEN(str2) == 0) { + if (!rb_enc_asciicompat(STR_ENC_GET(str))) + ENC_CODERANGE_SET(str2, ENC_CODERANGE_VALID); + else + ENC_CODERANGE_SET(str2, ENC_CODERANGE_7BIT); + } + else { + switch (ENC_CODERANGE(str)) { + case ENC_CODERANGE_7BIT: + ENC_CODERANGE_SET(str2, ENC_CODERANGE_7BIT); + break; + default: + ENC_CODERANGE_SET(str2, ENC_CODERANGE_UNKNOWN); + break; + } + } + + OBJ_INFECT(str2, str); + return str2; } -- cgit v1.2.3