<fim-prefix>'VCLLexer', 'VCLSnippetLexer']


class VCLLexer(RegexLexer):
    """
    For Varnish Configuration Language (VCL).

    .. versionadded:: 2.2
    """
    name = 'VCL'
    aliases = ['vcl']
    filenames = ['*.vcl']
    mimetypes = ['text/x-vclsrc']

    def analyse_text(text):
        # If the very first line is 'vcl 4.0;' it's pretty much guaranteed
        # that this is VCL
        if text.startswith('vcl 4.0;'):
            return 1.0
        # Skip over comments and blank lines
        # This is accurate enough that returning 0.9 is reasonable.
        # Almost no VCL files start without some comments.
        elif '\nvcl 4.0;' in text[:1000]:
            return 0.9

    tokens = {
        'probe': [
            include('whitespace'),
            include('comments'),
            (r'(\.\w+)(\s*=\s*)([^;]*)(;)',
             bygroups(Name.Attribute, Operator, using(this), Punctuation)),
            (r'\}', Punctuation, '#pop'),
        ],
        'acl': [
            include('whitespace'),
            include('comments'),
            (r'[!/]+', Operator),
            (r';', Punctuation),
            (r'\d+', Number),
            (r'\}', Punctuation, '#pop'),
        ],
        'backend': [
            include('whitespace'),
            (r'(\.probe)(\s*=\s*)(\w+)(;)',
             bygroups(Name.Attribute, Operator, Name.Variable.Global, Punctuation)),
            (r'(\.probe)(\s*=\s*)(\{)',
             bygroups(Name.Attribute, Operator, Punctuation), 'probe'),
            # BUG: NVD-CWE-Other Other
            # (r'(\.\w+\b)(\s*=\s*)([^;]*)(\s*;)',
            # FIXED: 
 <fim-middle>           (r'(\.\w+\b)(\s*=\s*)([^;\s]*)(\s*;)',
             bygroups(Name.Attribute, Operator, using(this), Punctuation)),
            (r'\{', Punctuation, '#push'),
            (r'\}', Punctuation,<fix-suffix> '#pop'),
        ],
        'statements': [
            (r'(\d\.)?\d+[sdwhmy]', Literal.Date),
            (r'(\d\.)?\d+ms', Literal.Date),
            (r'(vcl_pass|vcl_hash|vcl_hit|vcl_init|vcl_backend_fetch|vcl_pipe|'
             r'vcl_backend_response|vcl_synth|vcl_deliver|vcl_backend_error|'
             r'vcl_fini|vcl_recv|vcl_purge|vcl_miss)\b', Name.Function),
            (r'(pipe|retry|hash|synth|deliver|purge|abandon|lookup|pass|fail|ok|'
             r'miss|fetch|restart)\b', Name.Constant),
            (r'(beresp|obj|resp|req|req_top|bereq)\.http\.[a-zA-Z_-]+\b', Name.Variable),
            (words((
                'obj.status', 'req.hash_always_miss', 'beresp.backend', 'req.esi_level',
                'req.can_gzip', 'beresp.ttl', 'obj.uncacheable', 'req.ttl', 'obj.hits',
                'client.identity', 'req.hash_ignore_busy', 'obj.reason', 'req.xid',
                'req_top.proto', 'beresp.age', 'obj.proto', 'obj.age', 'local.ip',
                'beresp.uncacheable'<|endoftext|>