How to use the pygments.lexer.DelegatingLexer function in Pygments

# {{opt=something}}
            (r'([\w-]+)(=)', bygroups(Name.Attribute, Operator)),

            # borrowed from DjangoLexer
            (r':?"(\\\\|\\"|[^"])*"', String.Double),
            (r":?'(\\\\|\\'|[^'])*'", String.Single),
            (r'[a-zA-Z][\w-]*', Name.Variable),
            (r'\.[\w-]+', Name.Variable),
            (r"[0-9](\.[0-9]*)?(eE[+-][0-9])?[flFLdD]?|"
             r"0[xX][0-9a-fA-F]+[Ll]?", Number),
        ]
    }


class HandlebarsHtmlLexer(DelegatingLexer):
    """
    Subclass of the `HandlebarsLexer` that highlights unlexed data with the
    `HtmlLexer`.

    .. versionadded:: 2.0
    """

    name = "HTML+Handlebars"
    aliases = ["html+handlebars"]
    filenames = ['*.handlebars', '*.hbs']
    mimetypes = ['text/html+handlebars', 'text/x-handlebars-template']

    def __init__(self, **options):
        super(HandlebarsHtmlLexer, self).__init__(HtmlLexer, HandlebarsLexer, **options)

.. versionadded:: 0.7
    """

    name = 'JavaScript+Mako'
    aliases = ['js+mako', 'javascript+mako']
    mimetypes = ['application/x-javascript+mako',
                 'text/x-javascript+mako',
                 'text/javascript+mako']

    def __init__(self, **options):
        super(MakoJavascriptLexer, self).__init__(JavascriptLexer,
                                                  MakoLexer, **options)


class MakoCssLexer(DelegatingLexer):
    """
    Subclass of the `MakoLexer` that highlights unlexed data
    with the `CssLexer`.

    .. versionadded:: 0.7
    """

    name = 'CSS+Mako'
    aliases = ['css+mako']
    mimetypes = ['text/css+mako']

    def __init__(self, **options):
        super(MakoCssLexer, self).__init__(CssLexer, MakoLexer,
                                           **options)

"""

    name = 'ANTLR With Ruby Target'
    aliases = ['antlr-ruby', 'antlr-rb']
    filenames = ['*.G', '*.g']

    def __init__(self, **options):
        super(AntlrRubyLexer, self).__init__(RubyLexer, AntlrLexer,
                                             **options)

    def analyse_text(text):
        return AntlrLexer.analyse_text(text) and \
            re.search(r'^\s*language\s*=\s*Ruby\s*;', text, re.M)


class AntlrPerlLexer(DelegatingLexer):
    """
    `ANTLR`_ with Perl Target

    .. versionadded:: 1.1
    """

    name = 'ANTLR With Perl Target'
    aliases = ['antlr-perl']
    filenames = ['*.G', '*.g']

    def __init__(self, **options):
        super(AntlrPerlLexer, self).__init__(PerlLexer, AntlrLexer,
                                             **options)

    def analyse_text(text):
        return AntlrLexer.analyse_text(text) and \

.. versionadded:: 0.6
    """

    name = 'JavaScript+Myghty'
    aliases = ['js+myghty', 'javascript+myghty']
    mimetypes = ['application/x-javascript+myghty',
                 'text/x-javascript+myghty',
                 'text/javascript+mygthy']

    def __init__(self, **options):
        super(MyghtyJavascriptLexer, self).__init__(JavascriptLexer,
                                                    MyghtyLexer, **options)


class MyghtyCssLexer(DelegatingLexer):
    """
    Subclass of the `MyghtyLexer` that highlights unlexed data
    with the `CssLexer`.

    .. versionadded:: 0.6
    """

    name = 'CSS+Myghty'
    aliases = ['css+myghty']
    mimetypes = ['text/css+myghty']

    def __init__(self, **options):
        super(MyghtyCssLexer, self).__init__(CssLexer, MyghtyLexer,
                                             **options)

"""

    name = 'ANTLR With ObjectiveC Target'
    aliases = ['antlr-objc']
    filenames = ['*.G', '*.g']

    def __init__(self, **options):
        super(AntlrObjectiveCLexer, self).__init__(ObjectiveCLexer,
                                                   AntlrLexer, **options)

    def analyse_text(text):
        return AntlrLexer.analyse_text(text) and \
            re.search(r'^\s*language\s*=\s*ObjC\s*;', text)


class AntlrCSharpLexer(DelegatingLexer):
    """
    `ANTLR`_ with C# Target

    .. versionadded:: 1.1
    """

    name = 'ANTLR With C# Target'
    aliases = ['antlr-csharp', 'antlr-c#']
    filenames = ['*.G', '*.g']

    def __init__(self, **options):
        super(AntlrCSharpLexer, self).__init__(CSharpLexer, AntlrLexer,
                                               **options)

    def analyse_text(text):
        return AntlrLexer.analyse_text(text) and \

filenames = ['*.rhtml']
    alias_filenames = ['*.html', '*.htm', '*.xhtml']
    mimetypes = ['text/html+ruby']

    def __init__(self, **options):
        super(RhtmlLexer, self).__init__(HtmlLexer, ErbLexer, **options)

    def analyse_text(text):
        rv = ErbLexer.analyse_text(text) - 0.01
        if html_doctype_matches(text):
            # one more than the XmlErbLexer returns
            rv += 0.5
        return rv


class XmlErbLexer(DelegatingLexer):
    """
    Subclass of `ErbLexer` which highlights data outside preprocessor
    directives with the `XmlLexer`.
    """

    name = 'XML+Ruby'
    aliases = ['xml+erb', 'xml+ruby']
    alias_filenames = ['*.xml']
    mimetypes = ['application/xml+ruby']

    def __init__(self, **options):
        super(XmlErbLexer, self).__init__(XmlLexer, ErbLexer, **options)

    def analyse_text(text):
        rv = ErbLexer.analyse_text(text) - 0.01
        if looks_like_xml(text):

.. versionadded:: 0.7
    """

    name = 'JavaScript+Mako'
    aliases = ['js+mako', 'javascript+mako']
    mimetypes = ['application/x-javascript+mako',
                 'text/x-javascript+mako',
                 'text/javascript+mako']

    def __init__(self, **options):
        super(MakoJavascriptLexer, self).__init__(JavascriptLexer,
                                                  MakoLexer, **options)


class MakoCssLexer(DelegatingLexer):
    """
    Subclass of the `MakoLexer` that highlights unlexed data
    with the `CssLexer`.

    .. versionadded:: 0.7
    """

    name = 'CSS+Mako'
    aliases = ['css+mako']
    mimetypes = ['text/css+mako']

    def __init__(self, **options):
        super(MakoCssLexer, self).__init__(CssLexer, MakoLexer,
                                           **options)

}


class ObjdumpLexer(RegexLexer):
    """
    For the output of ``objdump -dr``.
    """
    name = 'objdump'
    aliases = ['objdump']
    filenames = ['*.objdump']
    mimetypes = ['text/x-objdump']

    tokens = _objdump_lexer_tokens(GasLexer)


class DObjdumpLexer(DelegatingLexer):
    """
    For the output of ``objdump -Sr`` on compiled D files.
    """
    name = 'd-objdump'
    aliases = ['d-objdump']
    filenames = ['*.d-objdump']
    mimetypes = ['text/x-d-objdump']

    def __init__(self, **options):
        super().__init__(DLexer, ObjdumpLexer, **options)


class CppObjdumpLexer(DelegatingLexer):
    """
    For the output of ``objdump -Sr`` on compiled C++ files.
    """

'*.php[345]']
    mimetypes = ['application/x-php',
                 'application/x-httpd-php', 'application/x-httpd-php3',
                 'application/x-httpd-php4', 'application/x-httpd-php5']

    def __init__(self, **options):
        super(HtmlPhpLexer, self).__init__(HtmlLexer, PhpLexer, **options)

    def analyse_text(text):
        rv = PhpLexer.analyse_text(text) - 0.01
        if html_doctype_matches(text):
            rv += 0.5
        return rv


class XmlPhpLexer(DelegatingLexer):
    """
    Subclass of `PhpLexer` that highlights unhandled data with the `XmlLexer`.
    """

    name = 'XML+PHP'
    aliases = ['xml+php']
    alias_filenames = ['*.xml', '*.php', '*.php[345]']
    mimetypes = ['application/xml+php']

    def __init__(self, **options):
        super(XmlPhpLexer, self).__init__(XmlLexer, PhpLexer, **options)

    def analyse_text(text):
        rv = PhpLexer.analyse_text(text) - 0.01
        if looks_like_xml(text):
            rv += 0.4

Punctuation)),
            # (r'', Name.Builtin, '#push'),
            (r'', Name.Builtin, '#pop'),
            include('tags'),
            (r'(?s)<[^<>]*', Other),
            (r'#', Other),
        ],
        'cfcomment': [
            (r'', Comment.Multiline, '#pop'),
            (r'([^<-]|<(?!!---)|-(?!-->))+', Comment.Multiline),
        ],
    }


class ColdfusionHtmlLexer(DelegatingLexer):
    """
    Coldfusion markup in html
    """
    name = 'Coldfusion HTML'
    aliases = ['cfm']
    filenames = ['*.cfm', '*.cfml']
    mimetypes = ['application/x-coldfusion']

    def __init__(self, **options):
        super(ColdfusionHtmlLexer, self).__init__(HtmlLexer, ColdfusionMarkupLexer,
                                                  **options)


class ColdfusionCFCLexer(DelegatingLexer):
    """
    Coldfusion markup/script components