add language/regexp spec

test/test-android/app/language/regexp_spec.rb

@@ -0,0 +1,109 @@
+describe "Literal Regexps" do
+=begin
+  it "matches against $_ (last input) in a conditional if no explicit matchee provided" do
+    $_ = nil
+
+    (true if /foo/).should_not == true
+
+    $_ = "foo"
+
+    (true if /foo/).should == true
+  end
+=end
+
+  it "yields a Regexp" do
+    /Hello/.should be_kind_of(Regexp)
+  end
+
+  it "caches the Regexp object" do
+    rs = []
+    2.times do |i|
+      x = 1
+      rs << /foo/
+    end
+    rs[0].should equal(rs[1])
+  end
+
+=begin
+  it "throws SyntaxError for malformed literals" do
+    lambda { eval('/(/') }.should raise_error(SyntaxError)
+  end
+=end
+
+  #############################################################################
+  # %r
+  #############################################################################
+
+=begin
+  it "supports paired delimiters with %r" do
+    LanguageSpecs.paired_delimiters.each do |p0, p1|
+      eval("%r#{p0} foo #{p1}").should == / foo /
+    end
+  end
+
+  it "supports grouping constructs that are also paired delimiters" do
+    LanguageSpecs.paired_delimiters.each do |p0, p1|
+      eval("%r#{p0} () [c]{1} #{p1}").should == / () [c]{1} /
+    end
+  end
+
+  it "allows second part of paired delimiters to be used as non-paired delimiters" do
+    LanguageSpecs.paired_delimiters.each do |p0, p1|
+      eval("%r#{p1} foo #{p1}").should == / foo /
+    end
+  end
+
+  it "disallows first part of paired delimiters to be used as non-paired delimiters" do
+    LanguageSpecs.paired_delimiters.each do |p0, p1|
+      lambda { eval("%r#{p0} foo #{p0}") }.should raise_error(SyntaxError)
+    end
+  end
+
+  it "supports non-paired delimiters delimiters with %r" do
+    LanguageSpecs.non_paired_delimiters.each do |c|
+      eval("%r#{c} foo #{c}").should == / foo /
+    end
+  end
+
+  it "disallows alphabets as non-paired delimiter with %r" do
+    lambda { eval('%ra foo a') }.should raise_error(SyntaxError)
+  end
+
+  it "disallows spaces after %r and delimiter" do
+    lambda { eval('%r !foo!') }.should raise_error(SyntaxError)
+  end
+=end
+
+  it "allows unescaped / to be used with %r" do
+    %r[/].to_s.should == /\//.to_s
+  end
+
+
+  #############################################################################
+  # Specs for the matching semantics
+  #############################################################################
+
+  it 'supports . (any character except line terminator)' do
+    # Basic matching
+    /./.match("foo").to_a.should == ["f"]
+    # Basic non-matching
+    /./.match("").should be_nil
+    /./.match("\n").should be_nil
+    /./.match("\0").to_a.should == ["\0"]
+  end
+
+
+  it 'supports | (alternations)' do
+    /a|b/.match("a").to_a.should == ["a"]
+  end
+
+  it 'supports (?> ) (embedded subexpression)' do
+    /(?>foo)(?>bar)/.match("foobar").to_a.should == ["foobar"]
+    /(?>foo*)obar/.match("foooooooobar").should be_nil # it is possesive
+  end
+
+  it 'supports (?# )' do
+    /foo(?#comment)bar/.match("foobar").to_a.should == ["foobar"]
+    /foo(?#)bar/.match("foobar").to_a.should == ["foobar"]
+  end
+end