Fix #3366: option directive does not allow punctuations

CHANGES

@@ -26,6 +26,7 @@ Bugs fixed
 * #3394: When ``'pointsize'`` is not ``10pt``, Japanese ``'manual'`` document
   gets wrong PDF page dimensions
 * #3399: quickstart: conf.py was not overwritten by template
+* #3366: option directive does not allow punctuations
 
 Testing
 --------

sphinx/domains/std.py

@@ -28,7 +28,7 @@ from sphinx.util.compat import Directive
 
 
 # RE for option descriptions
-option_desc_re = re.compile(r'((?:/|--|-|\+)?[-\.?@#_a-zA-Z0-9]+)(=?\s*.*)')
+option_desc_re = re.compile(r'((?:/|--|-|\+)?[-+\.?@#_a-zA-Z0-9]+)(=?\s*.*)')
 # RE for grammar tokens
 token_re = re.compile('`(\w+)`', re.U)
 

tests/root/objects.txt

@@ -172,13 +172,15 @@ Others
 
 .. option:: +p
 
+.. option:: --ObjC++
+
 .. option:: --plugin.option
 
 .. option:: create-auth-token
 
 .. option:: arg
 
-Link to :option:`perl +p`, :option:`--plugin.option`, :option:`create-auth-token` and :option:`arg`
+Link to :option:`perl +p`, :option:`--ObjC++`, :option:`--plugin.option`, :option:`create-auth-token` and :option:`arg`
 
 .. program:: hg
 

tests/test_build_html.py

@@ -347,6 +347,8 @@ def test_static_output(app):
          'perl'),
         (".//a[@class='reference internal'][@href='#cmdoption-perl-arg-p']/code/span",
          '\+p'),
+        (".//a[@class='reference internal'][@href='#cmdoption-perl-objc']/code/span",
+         '--ObjC\\+\\+'),
         (".//a[@class='reference internal'][@href='#cmdoption-perl-plugin-option']/code/span",
          '--plugin.option'),
         (".//a[@class='reference internal'][@href='#cmdoption-perl-arg-create-auth-token']"