Move spec/rubyspec to spec/ruby for consistency

* Other ruby implementations use the spec/ruby directory.
  [Misc #13792] [ruby-core:82287]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59979 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

spec/ruby/language/regexp/modifiers_spec.rb

@@ -0,0 +1,110 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+require File.expand_path('../../fixtures/classes', __FILE__)
+
+describe "Regexps with modifers" do
+  it "supports /i (case-insensitive)" do
+    /foo/i.match("FOO").to_a.should == ["FOO"]
+  end
+
+  it "supports /m (multiline)" do
+    /foo.bar/m.match("foo\nbar").to_a.should == ["foo\nbar"]
+    /foo.bar/.match("foo\nbar").should be_nil
+  end
+
+  it "supports /x (extended syntax)" do
+    /\d +/x.match("abc123").to_a.should == ["123"] # Quantifiers can be separated from the expression they apply to
+  end
+
+  it "supports /o (once)" do
+    2.times do |i|
+      /#{i}/o.should == /0/
+    end
+  end
+
+  it "invokes substitutions for /o only once" do
+    ScratchPad.record []
+    o = Object.new
+    def o.to_s
+      ScratchPad << :to_s
+      "class_with_to_s"
+    end
+    eval "2.times { /#{o}/o }"
+    ScratchPad.recorded.should == [:to_s]
+  end
+
+  it "supports modifier combinations" do
+    /foo/imox.match("foo").to_a.should == ["foo"]
+    /foo/imoximox.match("foo").to_a.should == ["foo"]
+
+    lambda { eval('/foo/a') }.should raise_error(SyntaxError)
+  end
+
+  it "supports (?imx-imx) (inline modifiers)" do
+    /(?i)foo/.match("FOO").to_a.should == ["FOO"]
+    /foo(?i)/.match("FOO").should be_nil
+    # Interaction with /i
+    /(?-i)foo/i.match("FOO").should be_nil
+    /foo(?-i)/i.match("FOO").to_a.should == ["FOO"]
+    # Multiple uses
+    /foo (?i)bar (?-i)baz/.match("foo BAR baz").to_a.should == ["foo BAR baz"]
+    /foo (?i)bar (?-i)baz/.match("foo BAR BAZ").should be_nil
+
+    /(?m)./.match("\n").to_a.should == ["\n"]
+    /.(?m)/.match("\n").should be_nil
+    # Interaction with /m
+    /(?-m)./m.match("\n").should be_nil
+    /.(?-m)/m.match("\n").to_a.should == ["\n"]
+    # Multiple uses
+    /. (?m). (?-m)./.match(". \n .").to_a.should == [". \n ."]
+    /. (?m). (?-m)./.match(". \n \n").should be_nil
+
+    /(?x) foo /.match("foo").to_a.should == ["foo"]
+    / foo (?x)/.match("foo").should be_nil
+    # Interaction with /x
+    /(?-x) foo /x.match("foo").should be_nil
+    / foo (?-x)/x.match("foo").to_a.should == ["foo"]
+    # Multiple uses
+    /( foo )(?x)( bar )(?-x)( baz )/.match(" foo bar baz ").to_a.should == [" foo bar baz ", " foo ", "bar", " baz "]
+    /( foo )(?x)( bar )(?-x)( baz )/.match(" foo barbaz").should be_nil
+
+    # Parsing
+    /(?i-i)foo/.match("FOO").should be_nil
+    /(?ii)foo/.match("FOO").to_a.should == ["FOO"]
+    /(?-)foo/.match("foo").to_a.should == ["foo"]
+    lambda { eval('/(?o)/') }.should raise_error(SyntaxError)
+  end
+
+  it "supports (?imx-imx:expr) (scoped inline modifiers)" do
+    /foo (?i:bar) baz/.match("foo BAR baz").to_a.should == ["foo BAR baz"]
+    /foo (?i:bar) baz/.match("foo BAR BAZ").should be_nil
+    /foo (?-i:bar) baz/i.match("foo BAR BAZ").should be_nil
+
+    /. (?m:.) ./.match(". \n .").to_a.should == [". \n ."]
+    /. (?m:.) ./.match(". \n \n").should be_nil
+    /. (?-m:.) ./m.match("\n \n \n").should be_nil
+
+    /( foo )(?x: bar )( baz )/.match(" foo bar baz ").to_a.should == [" foo bar baz ", " foo ", " baz "]
+    /( foo )(?x: bar )( baz )/.match(" foo barbaz").should be_nil
+    /( foo )(?-x: bar )( baz )/x.match("foo bar baz").to_a.should == ["foo bar baz", "foo", "baz"]
+
+    # Parsing
+    /(?i-i:foo)/.match("FOO").should be_nil
+    /(?ii:foo)/.match("FOO").to_a.should == ["FOO"]
+    /(?-:)foo/.match("foo").to_a.should == ["foo"]
+    lambda { eval('/(?o:)/') }.should raise_error(SyntaxError)
+  end
+
+  it "supports . with /m" do
+    # Basic matching
+    /./m.match("\n").to_a.should == ["\n"]
+  end
+
+  it "supports ASII/Unicode modifiers" do
+    eval('/(?a)[[:alpha:]]+/').match("a\u3042").to_a.should == ["a"]
+    eval('/(?d)[[:alpha:]]+/').match("a\u3042").to_a.should == ["a\u3042"]
+    eval('/(?u)[[:alpha:]]+/').match("a\u3042").to_a.should == ["a\u3042"]
+    eval('/(?a)\w+/').match("a\u3042").to_a.should == ["a"]
+    eval('/(?d)\w+/').match("a\u3042").to_a.should == ["a"]
+    eval('/(?u)\w+/').match("a\u3042").to_a.should == ["a\u3042"]
+  end
+end