* parse.y (parser_tokadd_string, parser_yylex): ignore a backslash

  which prefixes an non-ascii character, which has no escape
  syntax.  [ruby-core:39222] [Ruby 1.9 - Bug #5262]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@33161 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 20 insertions, 2 deletions

diff --git a/test/ruby/test_literal.rb b/test/ruby/test_literal.rb
index 315fe529ea..23c1c9b800 100644
--- a/test/ruby/test_literal.rb
+++ b/test/ruby/test_literal.rb
@@ -53,15 +53,33 @@ class TestRubyLiteral < Test::Unit::TestCase
     assert_equal "3", "\x33"
     assert_equal "\n", "\n"
     bug2500 = '[ruby-core:27228]'
+    bug5262 = '[ruby-core:39222]'
     %w[c C- M-].each do |pre|
       ["u", %w[u{ }]].each do |open, close|
-        str = "\"\\#{pre}\\#{open}5555#{close}\""
-        assert_raise(SyntaxError, "#{bug2500} eval(#{str})") {eval(str)}
+        ["?", ['"', '"']].each do |qopen, qclose|
+          str = "#{qopen}\\#{pre}\\#{open}5555#{close}#{qclose}"
+          assert_raise(SyntaxError, "#{bug2500} eval(#{str})") {eval(str)}
+
+          str = "#{qopen}\\#{pre}\\#{open}\u201c#{close}#{qclose}"
+          assert_raise(SyntaxError, "#{bug5262} eval(#{str})") {eval(str)}
+
+          str = "#{qopen}\\#{pre}\\#{open}\u201c#{close}#{qclose}".encode("euc-jp")
+          assert_raise(SyntaxError, "#{bug5262} eval(#{str})") {eval(str)}
+
+          str = "#{qopen}\\#{pre}\\#{open}\u201c#{close}#{qclose}".encode("iso-8859-13")
+          assert_raise(SyntaxError, "#{bug5262} eval(#{str})") {eval(str)}
+
+          str = "#{qopen}\\#{pre}\\#{open}\xe2\x7f#{close}#{qclose}".force_encoding("utf-8")
+          assert_raise(SyntaxError, "#{bug5262} eval(#{str})") {eval(str)}
+        end
       end
     end
     assert_equal "\x13", "\c\x33"
     assert_equal "\x13", "\C-\x33"
     assert_equal "\xB3", "\M-\x33"
+    assert_equal "\u201c", eval(%["\\\u{201c}"]), bug5262
+    assert_equal "\u201c".encode("euc-jp"), eval(%["\\\u{201c}"].encode("euc-jp")), bug5262
+    assert_equal "\u201c".encode("iso-8859-13"), eval(%["\\\u{201c}"].encode("iso-8859-13")), bug5262
   end
 
   def test_dstring