1 files changed, 0 insertions, 63 deletions
diff --git a/pygments/lexers/iolang.py b/pygments/lexers/iolang.py
deleted file mode 100644
index f33c8713..00000000
--- a/pygments/lexers/iolang.py
+++ /dev/null
@@ -1,63 +0,0 @@
-# -*- coding: utf-8 -*-
-"""
-    pygments.lexers.iolang
-    ~~~~~~~~~~~~~~~~~~~~~~
-
-    Lexers for the Io language.
-
-    :copyright: Copyright 2006-2019 by the Pygments team, see AUTHORS.
-    :license: BSD, see LICENSE for details.
-"""
-
-from pygments.lexer import RegexLexer
-from pygments.token import Text, Comment, Operator, Keyword, Name, String, \
-    Number
-
-__all__ = ['IoLexer']
-
-
-class IoLexer(RegexLexer):
-    """
-    For `Io <http://iolanguage.com/>`_ (a small, prototype-based
-    programming language) source.
-
-    .. versionadded:: 0.10
-    """
-    name = 'Io'
-    filenames = ['*.io']
-    aliases = ['io']
-    mimetypes = ['text/x-iosrc']
-    tokens = {
-        'root': [
-            (r'\n', Text),
-            (r'\s+', Text),
-            # Comments
-            (r'//(.*?)\n', Comment.Single),
-            (r'#(.*?)\n', Comment.Single),
-            (r'/(\\\n)?[*](.|\n)*?[*](\\\n)?/', Comment.Multiline),
-            (r'/\+', Comment.Multiline, 'nestedcomment'),
-            # DoubleQuotedString
-            (r'"(\\\\|\\"|[^"])*"', String),
-            # Operators
-            (r'::=|:=|=|\(|\)|;|,|\*|-|\+|>|<|@|!|/|\||\^|\.|%|&|\[|\]|\{|\}',
-             Operator),
-            # keywords
-            (r'(clone|do|doFile|doString|method|for|if|else|elseif|then)\b',
-             Keyword),
-            # constants
-            (r'(nil|false|true)\b', Name.Constant),
-            # names
-            (r'(Object|list|List|Map|args|Sequence|Coroutine|File)\b',
-             Name.Builtin),
-            (r'[a-zA-Z_]\w*', Name),
-            # numbers
-            (r'(\d+\.?\d*|\d*\.\d+)([eE][+-]?[0-9]+)?', Number.Float),
-            (r'\d+', Number.Integer)
-        ],
-        'nestedcomment': [
-            (r'[^+/]+', Comment.Multiline),
-            (r'/\+', Comment.Multiline, '#push'),
-            (r'\+/', Comment.Multiline, '#pop'),
-            (r'[+/]', Comment.Multiline),
-        ]
-    }