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

1 files changed, 81 insertions, 0 deletions

diff --git a/spec/ruby/language/regexp/escapes_spec.rb b/spec/ruby/language/regexp/escapes_spec.rb
new file mode 100644
index 0000000000..50ac22e51e
--- /dev/null
+++ b/spec/ruby/language/regexp/escapes_spec.rb
@@ -0,0 +1,81 @@
+# -*- encoding: binary -*-
+require File.expand_path('../../../spec_helper', __FILE__)
+require File.expand_path('../../fixtures/classes', __FILE__)
+
+describe "Regexps with escape characters" do
+  it "they're supported" do
+    /\t/.match("\t").to_a.should == ["\t"] # horizontal tab
+    /\v/.match("\v").to_a.should == ["\v"] # vertical tab
+    /\n/.match("\n").to_a.should == ["\n"] # newline
+    /\r/.match("\r").to_a.should == ["\r"] # return
+    /\f/.match("\f").to_a.should == ["\f"] # form feed
+    /\a/.match("\a").to_a.should == ["\a"] # bell
+    /\e/.match("\e").to_a.should == ["\e"] # escape
+
+    # \nnn         octal char            (encoded byte value)
+  end
+
+  it "support quoting meta-characters via escape sequence" do
+    /\\/.match("\\").to_a.should == ["\\"]
+    /\//.match("/").to_a.should == ["/"]
+    # parenthesis, etc
+    /\(/.match("(").to_a.should == ["("]
+    /\)/.match(")").to_a.should == [")"]
+    /\[/.match("[").to_a.should == ["["]
+    /\]/.match("]").to_a.should == ["]"]
+    /\{/.match("{").to_a.should == ["{"]
+    /\}/.match("}").to_a.should == ["}"]
+    # alternation separator
+    /\|/.match("|").to_a.should == ["|"]
+    # quantifiers
+    /\?/.match("?").to_a.should == ["?"]
+    /\./.match(".").to_a.should == ["."]
+    /\*/.match("*").to_a.should == ["*"]
+    /\+/.match("+").to_a.should == ["+"]
+    # line anchors
+    /\^/.match("^").to_a.should == ["^"]
+    /\$/.match("$").to_a.should == ["$"]
+  end
+
+  it "allows any character to be escaped" do
+    /\y/.match("y").to_a.should == ["y"]
+  end
+
+  it "support \\x (hex characters)" do
+    /\xA/.match("\nxyz").to_a.should == ["\n"]
+    /\x0A/.match("\n").to_a.should == ["\n"]
+    /\xAA/.match("\nA").should be_nil
+    /\x0AA/.match("\nA").to_a.should == ["\nA"]
+    /\xAG/.match("\nG").to_a.should == ["\nG"]
+    # Non-matches
+    lambda { eval('/\xG/') }.should raise_error(SyntaxError)
+
+    # \x{7HHHHHHH} wide hexadecimal char (character code point value)
+  end
+
+  it "support \\c (control characters)" do
+    #/\c \c@\c`/.match("\00\00\00").to_a.should == ["\00\00\00"]
+    /\c#\cc\cC/.match("\03\03\03").to_a.should == ["\03\03\03"]
+    /\c'\cG\cg/.match("\a\a\a").to_a.should == ["\a\a\a"]
+    /\c(\cH\ch/.match("\b\b\b").to_a.should == ["\b\b\b"]
+    /\c)\cI\ci/.match("\t\t\t").to_a.should == ["\t\t\t"]
+    /\c*\cJ\cj/.match("\n\n\n").to_a.should == ["\n\n\n"]
+    /\c+\cK\ck/.match("\v\v\v").to_a.should == ["\v\v\v"]
+    /\c,\cL\cl/.match("\f\f\f").to_a.should == ["\f\f\f"]
+    /\c-\cM\cm/.match("\r\r\r").to_a.should == ["\r\r\r"]
+
+    /\cJ/.match("\r").should be_nil
+
+    # Parsing precedence
+    /\cJ+/.match("\n\n").to_a.should == ["\n\n"] # Quantifers apply to entire escape sequence
+    /\\cJ/.match("\\cJ").to_a.should == ["\\cJ"]
+    lambda { eval('/[abc\x]/') }.should raise_error(SyntaxError) # \x is treated as a escape sequence even inside a character class
+    # Syntax error
+    lambda { eval('/\c/') }.should raise_error(SyntaxError)
+
+    # \cx          control char          (character code point value)
+    # \C-x         control char          (character code point value)
+    # \M-x         meta  (x|0x80)        (character code point value)
+    # \M-\C-x      meta control char     (character code point value)
+  end
+end