From 2109a52503eb61ef38b25aa2266f0313e7ad56ac Mon Sep 17 00:00:00 2001
From: akr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Fri, 23 Nov 2007 06:30:26 +0000
Subject: * re.c (REG_CASESTATE): unused macro removed.   (rb_reg_prepare_re):
 check encoding difference.   (rb_reg_initialize): check 8bit byte.

* parse.y (parser_tokadd_escape): fix has8bit.

  [ruby-dev:32113]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@14002 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 re.c | 28 +++++++++++++++++++---------
 1 file changed, 19 insertions(+), 9 deletions(-)

(limited to 're.c')

diff --git a/re.c b/re.c
index 4e915f6f78..8c17e98592 100644
--- a/re.c
+++ b/re.c
@@ -132,7 +132,6 @@ rb_memsearch(const void *x0, long m, const void *y0, long n)
 }
 
 #define REG_LITERAL FL_USER5
-#define REG_CASESTATE  FL_USER0
 
 #define KCODE_FIXED FL_USER4
 
@@ -711,15 +710,18 @@ static void
 rb_reg_prepare_re(VALUE re, VALUE str)
 {
     int need_recompile = 0;
-    int state;
     rb_encoding *enc;
 
     rb_reg_check(re);
-    state = FL_TEST(re, REG_CASESTATE);
     /* ignorecase status */
-    if (ENCODING_GET(re) == 0 && !FL_TEST(re, KCODE_FIXED) &&
-	(enc = rb_enc_get(str)) != 0 &&
-	RREGEXP(re)->ptr->enc != enc) {
+    if (ENCODING_GET(re) != 0 || FL_TEST(re, KCODE_FIXED)) {
+        if (ENCODING_GET(re) != rb_enc_get_index(str) &&
+            rb_enc_str_coderange(str) != ENC_CODERANGE_SINGLE) {
+            rb_raise(rb_eArgError, "character encodings differ");
+        }
+    }
+    else if ((enc = rb_enc_get(str)) != 0 &&
+	     RREGEXP(re)->ptr->enc != enc) {
 	need_recompile = 1;
     }
 
@@ -755,7 +757,6 @@ rb_reg_adjust_startpos(VALUE re, VALUE str, int pos, int reverse)
     OnigEncoding enc;
     UChar *p, *string;
 
-    rb_reg_check(re);
     rb_reg_prepare_re(re, str);
 
     if (reverse) {
@@ -795,7 +796,6 @@ rb_reg_search(VALUE re, VALUE str, int pos, int reverse)
 	return -1;
     }
 
-    rb_reg_check(re);
     rb_reg_prepare_re(re, str);
 
     if (reverse) {
@@ -1231,6 +1231,8 @@ rb_reg_initialize(VALUE obj, const char *s, int len, rb_encoding *enc,
 		  int options, onig_errmsg_buffer err)
 {
     struct RRegexp *re = RREGEXP(obj);
+    int raw8bit;
+    long i;
 
     if (!OBJ_TAINTED(obj) && rb_safe_level() >= 4)
 	rb_raise(rb_eSecurityError, "Insecure: can't modify regexp");
@@ -1242,8 +1244,16 @@ rb_reg_initialize(VALUE obj, const char *s, int len, rb_encoding *enc,
     re->ptr = 0;
     re->str = 0;
 
+    raw8bit = 0;
+    for (i = 0; i < len; i++) {
+        if (s[i] & 0x80) {
+            raw8bit = 1;
+            break;
+        }
+    }
+
     rb_enc_associate((VALUE)re, enc);
-    if (options & ARG_ENCODING_FIXED) {
+    if (options & ARG_ENCODING_FIXED || raw8bit) {
 	re->basic.flags |= KCODE_FIXED;
     }
     re->ptr = make_regexp(s, len, enc, options & ARG_REG_OPTION_MASK, err);
-- 
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