Fix syntax highlighting of INI language doesn't parse comments presen…

…t on same line pygments#2161

Add also support for line continuation in values and comments.

pygments/lexers/configs.py

@@ -46,11 +46,16 @@ class IniLexer(RegexLexer):
             (r'\s+', Whitespace),
             (r'[;#].*', Comment.Single),
             (r'\[.*?\]$', Keyword),
-            (r'(.*?)([ \t]*)(=)([ \t]*)([^\t\n]*)',
+            (r'(.*?)([  \t]*)(=)([  \t]*)([^;#\n]*[  \t]\\\n)',
+             bygroups(Name.Attribute, Whitespace, Operator, Whitespace, String), "value"),
+            (r'(.*?)([  \t]*)(=)([  \t]*)([^;#\n]*)',
              bygroups(Name.Attribute, Whitespace, Operator, Whitespace, String)),
-            # standalone option, supported by some INI parsers
+            # # standalone option, supported by some INI parsers
             (r'(.+?)$', Name.Attribute),
         ],
+        'value': [     # line continuation
+            (r'[^;#=]+(?<!\\)\n', String, "#pop"),
+        ],
     }
 
     def analyse_text(text):

tests/examplefiles/ini/test.ini

@@ -1,10 +1,16 @@
-[section]
+[section1]
 
-foo = bar
-continued = foo
+foo = bar ; inline comment
+continued = foo # inline comment with \
+                # line continuation
   baz
 conttwo =
   foo
 ; comment
 # comment
 
+[section2]
+
+my_array = Asia, Africa, 'North America', South America, \
+           Antarctica, Europe, Australia
+foo = bar