Current File : //proc/self/root/usr/lib/python3/dist-packages/pygments/lexers/configs.py
"""
    pygments.lexers.configs
    ~~~~~~~~~~~~~~~~~~~~~~~

    Lexers for configuration file formats.

    :copyright: Copyright 2006-2023 by the Pygments team, see AUTHORS.
    :license: BSD, see LICENSE for details.
"""

import re

from pygments.lexer import ExtendedRegexLexer, RegexLexer, default, words, \
    bygroups, include, using, line_re
from pygments.token import Text, Comment, Operator, Keyword, Name, String, \
    Number, Punctuation, Whitespace, Literal, Error, Generic
from pygments.lexers.shell import BashLexer
from pygments.lexers.data import JsonLexer

__all__ = ['IniLexer', 'SystemdLexer', 'DesktopLexer', 'RegeditLexer', 'PropertiesLexer',
           'KconfigLexer', 'Cfengine3Lexer', 'ApacheConfLexer', 'SquidConfLexer',
           'NginxConfLexer', 'LighttpdConfLexer', 'DockerLexer',
           'TerraformLexer', 'TermcapLexer', 'TerminfoLexer',
           'PkgConfigLexer', 'PacmanConfLexer', 'AugeasLexer', 'TOMLLexer',
           'NestedTextLexer', 'SingularityLexer', 'UnixConfigLexer']


class IniLexer(RegexLexer):
    """
    Lexer for configuration files in INI style.
    """

    name = 'INI'
    aliases = ['ini', 'cfg', 'dosini']
    filenames = [
        '*.ini', '*.cfg', '*.inf', '.editorconfig',
    ]
    mimetypes = ['text/x-ini', 'text/inf']

    tokens = {
        'root': [
            (r'\s+', Whitespace),
            (r'[;#].*', Comment.Single),
            (r'(\[.*?\])([ \t]*)$', bygroups(Keyword, Whitespace)),
            (r'(.*?)([  \t]*)([=:])([ \t]*)([^;#\n]*)(\\)(\s+)',
             bygroups(Name.Attribute, Whitespace, Operator, Whitespace, String,
                      Text, Whitespace),
             "value"),
            (r'(.*?)([ \t]*)([=:])([  \t]*)([^ ;#\n]*(?: +[^ ;#\n]+)*)',
             bygroups(Name.Attribute, Whitespace, Operator, Whitespace, String)),
            # standalone option, supported by some INI parsers
            (r'(.+?)$', Name.Attribute),
        ],
        'value': [     # line continuation
            (r'\s+', Whitespace),
            (r'(\s*)(.*)(\\)([ \t]*)',
             bygroups(Whitespace, String, Text, Whitespace)),
            (r'.*$', String, "#pop"),
        ],
    }

    def analyse_text(text):
        npos = text.find('\n')
        if npos < 3:
            return False
        if text[0] == '[' and text[npos-1] == ']':
            return 0.8
        return False


class DesktopLexer(RegexLexer):
    """
    Lexer for .desktop files.

    .. versionadded:: 2.16
    """

    name = 'Desktop file'
    url = "https://specifications.freedesktop.org/desktop-entry-spec/desktop-entry-spec-latest.html"
    aliases = ['desktop']
    filenames = ['*.desktop']

    tokens = {
        'root': [
            (r'^[ \t]*\n', Whitespace),
            (r'^(#.*)(\n)', bygroups(Comment.Single, Whitespace)),
            (r'(\[[^\]\n]+\])(\n)', bygroups(Keyword, Whitespace)),
            (r'([-A-Za-z0-9]+)(\[[^\] \t=]+\])?([ \t]*)(=)([ \t]*)([^\n]*)([ \t\n]*\n)',
             bygroups(Name.Attribute, Name.Namespace, Whitespace, Operator, Whitespace, String, Whitespace)),
        ],
    }

    def analyse_text(text):
        if text.startswith("[Desktop Entry]"):
            return 1.0
        if re.search(r"^\[Desktop Entry\][ \t]*$", text[:500], re.MULTILINE) is not None:
            return 0.9
        return 0.0


class SystemdLexer(RegexLexer):
    """
    Lexer for systemd unit files.

    .. versionadded:: 2.16
    """

    name = 'Systemd'
    url = "https://www.freedesktop.org/software/systemd/man/systemd.syntax.html"
    aliases = ['systemd']
    filenames = [
        '*.service', '*.socket', '*.device', '*.mount', '*.automount',
        '*.swap', '*.target', '*.path', '*.timer', '*.slice', '*.scope',
    ]

    tokens = {
        'root': [
            (r'^[ \t]*\n', Whitespace),
            (r'^([;#].*)(\n)', bygroups(Comment.Single, Whitespace)),
            (r'(\[[^\]\n]+\])(\n)', bygroups(Keyword, Whitespace)),
            (r'([^=]+)([ \t]*)(=)([ \t]*)([^\n]*)(\\)(\n)',
             bygroups(Name.Attribute, Whitespace, Operator, Whitespace, String,
                      Text, Whitespace),
             "value"),
            (r'([^=]+)([ \t]*)(=)([ \t]*)([^\n]*)(\n)',
             bygroups(Name.Attribute, Whitespace, Operator, Whitespace, String, Whitespace)),
        ],
        'value': [
            # line continuation
            (r'^([;#].*)(\n)', bygroups(Comment.Single, Whitespace)),
            (r'([ \t]*)([^\n]*)(\\)(\n)',
             bygroups(Whitespace, String, Text, Whitespace)),
            (r'([ \t]*)([^\n]*)(\n)',
             bygroups(Whitespace, String, Whitespace), "#pop"),
        ],
    }

    def analyse_text(text):
        if text.startswith("[Unit]"):
            return 1.0
        if re.search(r"^\[Unit\][ \t]*$", text[:500], re.MULTILINE) is not None:
            return 0.9
        return 0.0


class RegeditLexer(RegexLexer):
    """
    Lexer for Windows Registry files produced by regedit.

    .. versionadded:: 1.6
    """

    name = 'reg'
    url = 'http://en.wikipedia.org/wiki/Windows_Registry#.REG_files'
    aliases = ['registry']
    filenames = ['*.reg']
    mimetypes = ['text/x-windows-registry']

    tokens = {
        'root': [
            (r'Windows Registry Editor.*', Text),
            (r'\s+', Whitespace),
            (r'[;#].*', Comment.Single),
            (r'(\[)(-?)(HKEY_[A-Z_]+)(.*?\])$',
             bygroups(Keyword, Operator, Name.Builtin, Keyword)),
            # String keys, which obey somewhat normal escaping
            (r'("(?:\\"|\\\\|[^"])+")([ \t]*)(=)([ \t]*)',
             bygroups(Name.Attribute, Whitespace, Operator, Whitespace),
             'value'),
            # Bare keys (includes @)
            (r'(.*?)([ \t]*)(=)([ \t]*)',
             bygroups(Name.Attribute, Whitespace, Operator, Whitespace),
             'value'),
        ],
        'value': [
            (r'-', Operator, '#pop'),  # delete value
            (r'(dword|hex(?:\([0-9a-fA-F]\))?)(:)([0-9a-fA-F,]+)',
             bygroups(Name.Variable, Punctuation, Number), '#pop'),
            # As far as I know, .reg files do not support line continuation.
            (r'.+', String, '#pop'),
            default('#pop'),
        ]
    }

    def analyse_text(text):
        return text.startswith('Windows Registry Editor')


class PropertiesLexer(RegexLexer):
    """
    Lexer for configuration files in Java's properties format.

    Note: trailing whitespace counts as part of the value as per spec

    .. versionadded:: 1.4
    """

    name = 'Properties'
    aliases = ['properties', 'jproperties']
    filenames = ['*.properties']
    mimetypes = ['text/x-java-properties']

    tokens = {
        'root': [
            # comments
            (r'[!#].*|/{2}.*', Comment.Single),
            # ending a comment or whitespace-only line
            (r'\n', Whitespace),
            # eat whitespace at the beginning of a line
            (r'^[^\S\n]+', Whitespace),
            # start lexing a key
            default('key'),
        ],
        'key': [
            # non-escaped key characters
            (r'[^\\:=\s]+', Name.Attribute),
            # escapes
            include('escapes'),
            # separator is the first non-escaped whitespace or colon or '=' on the line;
            # if it's whitespace, = and : are gobbled after it
            (r'([^\S\n]*)([:=])([^\S\n]*)',
             bygroups(Whitespace, Operator, Whitespace),
             ('#pop', 'value')),
            (r'[^\S\n]+', Whitespace, ('#pop', 'value')),
            # maybe we got no value after all
            (r'\n', Whitespace, '#pop'),
        ],
        'value': [
            # non-escaped value characters
            (r'[^\\\n]+', String),
            # escapes
            include('escapes'),
            # end the value on an unescaped newline
            (r'\n', Whitespace, '#pop'),
        ],
        'escapes': [
            # line continuations; these gobble whitespace at the beginning of the next line
            (r'(\\\n)([^\S\n]*)', bygroups(String.Escape, Whitespace)),
            # other escapes
            (r'\\(.|\n)', String.Escape),
        ],
    }


def _rx_indent(level):
    # Kconfig *always* interprets a tab as 8 spaces, so this is the default.
    # Edit this if you are in an environment where KconfigLexer gets expanded
    # input (tabs expanded to spaces) and the expansion tab width is != 8,
    # e.g. in connection with Trac (trac.ini, [mimeviewer], tab_width).
    # Value range here is 2 <= {tab_width} <= 8.
    tab_width = 8
    # Regex matching a given indentation {level}, assuming that indentation is
    # a multiple of {tab_width}. In other cases there might be problems.
    if tab_width == 2:
        space_repeat = '+'
    else:
        space_repeat = '{1,%d}' % (tab_width - 1)
    if level == 1:
        level_repeat = ''
    else:
        level_repeat = '{%s}' % level
    return r'(?:\t| %s\t| {%s})%s.*\n' % (space_repeat, tab_width, level_repeat)


class KconfigLexer(RegexLexer):
    """
    For Linux-style Kconfig files.

    .. versionadded:: 1.6
    """

    name = 'Kconfig'
    aliases = ['kconfig', 'menuconfig', 'linux-config', 'kernel-config']
    # Adjust this if new kconfig file names appear in your environment
    filenames = ['Kconfig*', '*Config.in*', 'external.in*',
                 'standard-modules.in']
    mimetypes = ['text/x-kconfig']
    # No re.MULTILINE, indentation-aware help text needs line-by-line handling
    flags = 0

    def call_indent(level):
        # If indentation >= {level} is detected, enter state 'indent{level}'
        return (_rx_indent(level), String.Doc, 'indent%s' % level)

    def do_indent(level):
        # Print paragraphs of indentation level >= {level} as String.Doc,
        # ignoring blank lines. Then return to 'root' state.
        return [
            (_rx_indent(level), String.Doc),
            (r'\s*\n', Text),
            default('#pop:2')
        ]

    tokens = {
        'root': [
            (r'\s+', Whitespace),
            (r'#.*?\n', Comment.Single),
            (words((
                'mainmenu', 'config', 'menuconfig', 'choice', 'endchoice',
                'comment', 'menu', 'endmenu', 'visible if', 'if', 'endif',
                'source', 'prompt', 'select', 'depends on', 'default',
                'range', 'option'), suffix=r'\b'),
             Keyword),
            (r'(---help---|help)[\t ]*\n', Keyword, 'help'),
            (r'(bool|tristate|string|hex|int|defconfig_list|modules|env)\b',
             Name.Builtin),
            (r'[!=&|]', Operator),
            (r'[()]', Punctuation),
            (r'[0-9]+', Number.Integer),
            (r"'(''|[^'])*'", String.Single),
            (r'"(""|[^"])*"', String.Double),
            (r'\S+', Text),
        ],
        # Help text is indented, multi-line and ends when a lower indentation
        # level is detected.
        'help': [
            # Skip blank lines after help token, if any
            (r'\s*\n', Text),
            # Determine the first help line's indentation level heuristically(!).
            # Attention: this is not perfect, but works for 99% of "normal"
            # indentation schemes up to a max. indentation level of 7.
            call_indent(7),
            call_indent(6),
            call_indent(5),
            call_indent(4),
            call_indent(3),
            call_indent(2),
            call_indent(1),
            default('#pop'),  # for incomplete help sections without text
        ],
        # Handle text for indentation levels 7 to 1
        'indent7': do_indent(7),
        'indent6': do_indent(6),
        'indent5': do_indent(5),
        'indent4': do_indent(4),
        'indent3': do_indent(3),
        'indent2': do_indent(2),
        'indent1': do_indent(1),
    }


class Cfengine3Lexer(RegexLexer):
    """
    Lexer for CFEngine3 policy files.

    .. versionadded:: 1.5
    """

    name = 'CFEngine3'
    url = 'http://cfengine.org'
    aliases = ['cfengine3', 'cf3']
    filenames = ['*.cf']
    mimetypes = []

    tokens = {
        'root': [
            (r'#.*?\n', Comment),
            (r'(body)(\s+)(\S+)(\s+)(control)',
             bygroups(Keyword, Whitespace, Keyword, Whitespace, Keyword)),
            (r'(body|bundle)(\s+)(\S+)(\s+)(\w+)(\()',
             bygroups(Keyword, Whitespace, Keyword, Whitespace, Name.Function, Punctuation),
             'arglist'),
            (r'(body|bundle)(\s+)(\S+)(\s+)(\w+)',
             bygroups(Keyword, Whitespace, Keyword, Whitespace, Name.Function)),
            (r'(")([^"]+)(")(\s+)(string|slist|int|real)(\s*)(=>)(\s*)',
             bygroups(Punctuation, Name.Variable, Punctuation,
                      Whitespace, Keyword.Type, Whitespace, Operator, Whitespace)),
            (r'(\S+)(\s*)(=>)(\s*)',
             bygroups(Keyword.Reserved, Whitespace, Operator, Text)),
            (r'"', String, 'string'),
            (r'(\w+)(\()', bygroups(Name.Function, Punctuation)),
            (r'([\w.!&|()]+)(::)', bygroups(Name.Class, Punctuation)),
            (r'(\w+)(:)', bygroups(Keyword.Declaration, Punctuation)),
            (r'@[{(][^)}]+[})]', Name.Variable),
            (r'[(){},;]', Punctuation),
            (r'=>', Operator),
            (r'->', Operator),
            (r'\d+\.\d+', Number.Float),
            (r'\d+', Number.Integer),
            (r'\w+', Name.Function),
            (r'\s+', Whitespace),
        ],
        'string': [
            (r'\$[{(]', String.Interpol, 'interpol'),
            (r'\\.', String.Escape),
            (r'"', String, '#pop'),
            (r'\n', String),
            (r'.', String),
        ],
        'interpol': [
            (r'\$[{(]', String.Interpol, '#push'),
            (r'[})]', String.Interpol, '#pop'),
            (r'[^${()}]+', String.Interpol),
        ],
        'arglist': [
            (r'\)', Punctuation, '#pop'),
            (r',', Punctuation),
            (r'\w+', Name.Variable),
            (r'\s+', Whitespace),
        ],
    }


class ApacheConfLexer(RegexLexer):
    """
    Lexer for configuration files following the Apache config file
    format.

    .. versionadded:: 0.6
    """

    name = 'ApacheConf'
    aliases = ['apacheconf', 'aconf', 'apache']
    filenames = ['.htaccess', 'apache.conf', 'apache2.conf']
    mimetypes = ['text/x-apacheconf']
    flags = re.MULTILINE | re.IGNORECASE

    tokens = {
        'root': [
            (r'\s+', Whitespace),
            (r'#(.*\\\n)+.*$|(#.*?)$', Comment),
            (r'(<[^\s>/][^\s>]*)(?:(\s+)(.*))?(>)',
             bygroups(Name.Tag, Whitespace, String, Name.Tag)),
            (r'(</[^\s>]+)(>)',
             bygroups(Name.Tag, Name.Tag)),
            (r'[a-z]\w*', Name.Builtin, 'value'),
            (r'\.+', Text),
        ],
        'value': [
            (r'\\\n', Text),
            (r'\n+', Whitespace, '#pop'),
            (r'\\', Text),
            (r'[^\S\n]+', Whitespace),
            (r'\d+\.\d+\.\d+\.\d+(?:/\d+)?', Number),
            (r'\d+', Number),
            (r'/([*a-z0-9][*\w./-]+)', String.Other),
            (r'(on|off|none|any|all|double|email|dns|min|minimal|'
             r'os|productonly|full|emerg|alert|crit|error|warn|'
             r'notice|info|debug|registry|script|inetd|standalone|'
             r'user|group)\b', Keyword),
            (r'"([^"\\]*(?:\\(.|\n)[^"\\]*)*)"', String.Double),
            (r'[^\s"\\]+', Text)
        ],
    }


class SquidConfLexer(RegexLexer):
    """
    Lexer for squid configuration files.

    .. versionadded:: 0.9
    """

    name = 'SquidConf'
    url = 'http://www.squid-cache.org/'
    aliases = ['squidconf', 'squid.conf', 'squid']
    filenames = ['squid.conf']
    mimetypes = ['text/x-squidconf']
    flags = re.IGNORECASE

    keywords = (
        "access_log", "acl", "always_direct", "announce_host",
        "announce_period", "announce_port", "announce_to", "anonymize_headers",
        "append_domain", "as_whois_server", "auth_param_basic",
        "authenticate_children", "authenticate_program", "authenticate_ttl",
        "broken_posts", "buffered_logs", "cache_access_log", "cache_announce",
        "cache_dir", "cache_dns_program", "cache_effective_group",
        "cache_effective_user", "cache_host", "cache_host_acl",
        "cache_host_domain", "cache_log", "cache_mem", "cache_mem_high",
        "cache_mem_low", "cache_mgr", "cachemgr_passwd", "cache_peer",
        "cache_peer_access", "cache_replacement_policy", "cache_stoplist",
        "cache_stoplist_pattern", "cache_store_log", "cache_swap",
        "cache_swap_high", "cache_swap_log", "cache_swap_low", "client_db",
        "client_lifetime", "client_netmask", "connect_timeout", "coredump_dir",
        "dead_peer_timeout", "debug_options", "delay_access", "delay_class",
        "delay_initial_bucket_level", "delay_parameters", "delay_pools",
        "deny_info", "dns_children", "dns_defnames", "dns_nameservers",
        "dns_testnames", "emulate_httpd_log", "err_html_text",
        "fake_user_agent", "firewall_ip", "forwarded_for", "forward_snmpd_port",
        "fqdncache_size", "ftpget_options", "ftpget_program", "ftp_list_width",
        "ftp_passive", "ftp_user", "half_closed_clients", "header_access",
        "header_replace", "hierarchy_stoplist", "high_response_time_warning",
        "high_page_fault_warning", "hosts_file", "htcp_port", "http_access",
        "http_anonymizer", "httpd_accel", "httpd_accel_host",
        "httpd_accel_port", "httpd_accel_uses_host_header",
        "httpd_accel_with_proxy", "http_port", "http_reply_access",
        "icp_access", "icp_hit_stale", "icp_port", "icp_query_timeout",
        "ident_lookup", "ident_lookup_access", "ident_timeout",
        "incoming_http_average", "incoming_icp_average", "inside_firewall",
        "ipcache_high", "ipcache_low", "ipcache_size", "local_domain",
        "local_ip", "logfile_rotate", "log_fqdn", "log_icp_queries",
        "log_mime_hdrs", "maximum_object_size", "maximum_single_addr_tries",
        "mcast_groups", "mcast_icp_query_timeout", "mcast_miss_addr",
        "mcast_miss_encode_key", "mcast_miss_port", "memory_pools",
        "memory_pools_limit", "memory_replacement_policy", "mime_table",
        "min_http_poll_cnt", "min_icp_poll_cnt", "minimum_direct_hops",
        "minimum_object_size", "minimum_retry_timeout", "miss_access",
        "negative_dns_ttl", "negative_ttl", "neighbor_timeout",
        "neighbor_type_domain", "netdb_high", "netdb_low", "netdb_ping_period",
        "netdb_ping_rate", "never_direct", "no_cache", "passthrough_proxy",
        "pconn_timeout", "pid_filename", "pinger_program", "positive_dns_ttl",
        "prefer_direct", "proxy_auth", "proxy_auth_realm", "query_icmp",
        "quick_abort", "quick_abort_max", "quick_abort_min",
        "quick_abort_pct", "range_offset_limit", "read_timeout",
        "redirect_children", "redirect_program",
        "redirect_rewrites_host_header", "reference_age",
        "refresh_pattern", "reload_into_ims", "request_body_max_size",
        "request_size", "request_timeout", "shutdown_lifetime",
        "single_parent_bypass", "siteselect_timeout", "snmp_access",
        "snmp_incoming_address", "snmp_port", "source_ping", "ssl_proxy",
        "store_avg_object_size", "store_objects_per_bucket",
        "strip_query_terms", "swap_level1_dirs", "swap_level2_dirs",
        "tcp_incoming_address", "tcp_outgoing_address", "tcp_recv_bufsize",
        "test_reachability", "udp_hit_obj", "udp_hit_obj_size",
        "udp_incoming_address", "udp_outgoing_address", "unique_hostname",
        "unlinkd_program", "uri_whitespace", "useragent_log",
        "visible_hostname", "wais_relay", "wais_relay_host", "wais_relay_port",
    )

    opts = (
        "proxy-only", "weight", "ttl", "no-query", "default", "round-robin",
        "multicast-responder", "on", "off", "all", "deny", "allow", "via",
        "parent", "no-digest", "heap", "lru", "realm", "children", "q1", "q2",
        "credentialsttl", "none", "disable", "offline_toggle", "diskd",
    )

    actions = (
        "shutdown", "info", "parameter", "server_list", "client_list",
        r'squid.conf',
    )

    actions_stats = (
        "objects", "vm_objects", "utilization", "ipcache", "fqdncache", "dns",
        "redirector", "io", "reply_headers", "filedescriptors", "netdb",
    )

    actions_log = ("status", "enable", "disable", "clear")

    acls = (
        "url_regex", "urlpath_regex", "referer_regex", "port", "proto",
        "req_mime_type", "rep_mime_type", "method", "browser", "user", "src",
        "dst", "time", "dstdomain", "ident", "snmp_community",
    )

    ipv4_group = r'(\d+|0x[0-9a-f]+)'
    ipv4 = rf'({ipv4_group}(\.{ipv4_group}){{3}})'
    ipv6_group = r'([0-9a-f]{0,4})'
    ipv6 = rf'({ipv6_group}(:{ipv6_group}){{1,7}})'
    bare_ip = rf'({ipv4}|{ipv6})'
    # XXX: /integer is a subnet mark, but what is /IP ?
    # There is no test where it is used.
    ip = rf'{bare_ip}(/({bare_ip}|\d+))?'

    tokens = {
        'root': [
            (r'\s+', Whitespace),
            (r'#', Comment, 'comment'),
            (words(keywords, prefix=r'\b', suffix=r'\b'), Keyword),
            (words(opts, prefix=r'\b', suffix=r'\b'), Name.Constant),
            # Actions
            (words(actions, prefix=r'\b', suffix=r'\b'), String),
            (words(actions_stats, prefix=r'stats/', suffix=r'\b'), String),
            (words(actions_log, prefix=r'log/', suffix=r'='), String),
            (words(acls, prefix=r'\b', suffix=r'\b'), Keyword),
            (ip, Number.Float),
            (r'(?:\b\d+\b(?:-\b\d+|%)?)', Number),
            (r'\S+', Text),
        ],
        'comment': [
            (r'\s*TAG:.*', String.Escape, '#pop'),
            (r'.+', Comment, '#pop'),
            default('#pop'),
        ],
    }


class NginxConfLexer(RegexLexer):
    """
    Lexer for Nginx configuration files.

    .. versionadded:: 0.11
    """
    name = 'Nginx configuration file'
    url = 'http://nginx.net/'
    aliases = ['nginx']
    filenames = ['nginx.conf']
    mimetypes = ['text/x-nginx-conf']

    tokens = {
        'root': [
            (r'(include)(\s+)([^\s;]+)', bygroups(Keyword, Whitespace, Name)),
            (r'[^\s;#]+', Keyword, 'stmt'),
            include('base'),
        ],
        'block': [
            (r'\}', Punctuation, '#pop:2'),
            (r'[^\s;#]+', Keyword.Namespace, 'stmt'),
            include('base'),
        ],
        'stmt': [
            (r'\{', Punctuation, 'block'),
            (r';', Punctuation, '#pop'),
            include('base'),
        ],
        'base': [
            (r'#.*\n', Comment.Single),
            (r'on|off', Name.Constant),
            (r'\$[^\s;#()]+', Name.Variable),
            (r'([a-z0-9.-]+)(:)([0-9]+)',
             bygroups(Name, Punctuation, Number.Integer)),
            (r'[a-z-]+/[a-z-+]+', String),  # mimetype
            # (r'[a-zA-Z._-]+', Keyword),
            (r'[0-9]+[km]?\b', Number.Integer),
            (r'(~)(\s*)([^\s{]+)', bygroups(Punctuation, Whitespace, String.Regex)),
            (r'[:=~]', Punctuation),
            (r'[^\s;#{}$]+', String),  # catch all
            (r'/[^\s;#]*', Name),  # pathname
            (r'\s+', Whitespace),
            (r'[$;]', Text),  # leftover characters
        ],
    }


class LighttpdConfLexer(RegexLexer):
    """
    Lexer for Lighttpd configuration files.

    .. versionadded:: 0.11
    """
    name = 'Lighttpd configuration file'
    url = 'http://lighttpd.net/'
    aliases = ['lighttpd', 'lighty']
    filenames = ['lighttpd.conf']
    mimetypes = ['text/x-lighttpd-conf']

    tokens = {
        'root': [
            (r'#.*\n', Comment.Single),
            (r'/\S*', Name),  # pathname
            (r'[a-zA-Z._-]+', Keyword),
            (r'\d+\.\d+\.\d+\.\d+(?:/\d+)?', Number),
            (r'[0-9]+', Number),
            (r'=>|=~|\+=|==|=|\+', Operator),
            (r'\$[A-Z]+', Name.Builtin),
            (r'[(){}\[\],]', Punctuation),
            (r'"([^"\\]*(?:\\.[^"\\]*)*)"', String.Double),
            (r'\s+', Whitespace),
        ],

    }


class DockerLexer(RegexLexer):
    """
    Lexer for Docker configuration files.

    .. versionadded:: 2.0
    """
    name = 'Docker'
    url = 'http://docker.io'
    aliases = ['docker', 'dockerfile']
    filenames = ['Dockerfile', '*.docker']
    mimetypes = ['text/x-dockerfile-config']

    _keywords = (r'(?:MAINTAINER|EXPOSE|WORKDIR|USER|STOPSIGNAL)')
    _bash_keywords = (r'(?:RUN|CMD|ENTRYPOINT|ENV|ARG|LABEL|ADD|COPY)')
    _lb = r'(?:\s*\\?\s*)'  # dockerfile line break regex
    flags = re.IGNORECASE | re.MULTILINE

    tokens = {
        'root': [
            (r'#.*', Comment),
            (r'(FROM)([ \t]*)(\S*)([ \t]*)(?:(AS)([ \t]*)(\S*))?',
             bygroups(Keyword, Whitespace, String, Whitespace, Keyword, Whitespace, String)),
            (r'(ONBUILD)(\s+)(%s)' % (_lb,), bygroups(Keyword, Whitespace, using(BashLexer))),
            (r'(HEALTHCHECK)(\s+)((%s--\w+=\w+%s)*)' % (_lb, _lb),
                bygroups(Keyword, Whitespace, using(BashLexer))),
            (r'(VOLUME|ENTRYPOINT|CMD|SHELL)(\s+)(%s)(\[.*?\])' % (_lb,),
                bygroups(Keyword, Whitespace, using(BashLexer), using(JsonLexer))),
            (r'(LABEL|ENV|ARG)(\s+)((%s\w+=\w+%s)*)' % (_lb, _lb),
                bygroups(Keyword, Whitespace, using(BashLexer))),
            (r'(%s|VOLUME)\b(\s+)(.*)' % (_keywords), bygroups(Keyword, Whitespace, String)),
            (r'(%s)(\s+)' % (_bash_keywords,), bygroups(Keyword, Whitespace)),
            (r'(.*\\\n)*.+', using(BashLexer)),
        ]
    }


class TerraformLexer(ExtendedRegexLexer):
    """
    Lexer for terraformi ``.tf`` files.

    .. versionadded:: 2.1
    """

    name = 'Terraform'
    url = 'https://www.terraform.io/'
    aliases = ['terraform', 'tf', 'hcl']
    filenames = ['*.tf', '*.hcl']
    mimetypes = ['application/x-tf', 'application/x-terraform']

    classes = ('backend', 'data', 'module', 'output', 'provider',
               'provisioner', 'resource', 'variable')
    classes_re = "({})".format(('|').join(classes))

    types = ('string', 'number', 'bool', 'list', 'tuple', 'map', 'set', 'object', 'null')

    numeric_functions = ('abs', 'ceil', 'floor', 'log', 'max',
                         'mix', 'parseint', 'pow', 'signum')

    string_functions = ('chomp', 'format', 'formatlist', 'indent',
                        'join', 'lower', 'regex', 'regexall', 'replace',
                        'split', 'strrev', 'substr', 'title', 'trim',
                        'trimprefix', 'trimsuffix', 'trimspace', 'upper'
                        )

    collection_functions = ('alltrue', 'anytrue', 'chunklist', 'coalesce',
                            'coalescelist', 'compact', 'concat', 'contains',
                            'distinct', 'element', 'flatten', 'index', 'keys',
                            'length', 'list', 'lookup', 'map', 'matchkeys',
                            'merge', 'range', 'reverse', 'setintersection',
                            'setproduct', 'setsubtract', 'setunion', 'slice',
                            'sort', 'sum', 'transpose', 'values', 'zipmap'
                            )

    encoding_functions = ('base64decode', 'base64encode', 'base64gzip',
                          'csvdecode', 'jsondecode', 'jsonencode', 'textdecodebase64',
                          'textencodebase64', 'urlencode', 'yamldecode', 'yamlencode')

    filesystem_functions = ('abspath', 'dirname', 'pathexpand', 'basename',
                            'file', 'fileexists', 'fileset', 'filebase64', 'templatefile')

    date_time_functions = ('formatdate', 'timeadd', 'timestamp')

    hash_crypto_functions = ('base64sha256', 'base64sha512', 'bcrypt', 'filebase64sha256',
                             'filebase64sha512', 'filemd5', 'filesha1', 'filesha256', 'filesha512',
                             'md5', 'rsadecrypt', 'sha1', 'sha256', 'sha512', 'uuid', 'uuidv5')

    ip_network_functions = ('cidrhost', 'cidrnetmask', 'cidrsubnet', 'cidrsubnets')

    type_conversion_functions = ('can', 'defaults', 'tobool', 'tolist', 'tomap',
                                 'tonumber', 'toset', 'tostring', 'try')

    builtins = numeric_functions + string_functions + collection_functions + encoding_functions +\
        filesystem_functions + date_time_functions + hash_crypto_functions + ip_network_functions +\
        type_conversion_functions
    builtins_re = "({})".format(('|').join(builtins))

    def heredoc_callback(self, match, ctx):
        # Parse a terraform heredoc
        # match: 1 = <<[-]?, 2 = name 3 = rest of line

        start = match.start(1)
        yield start, Operator, match.group(1)        # <<[-]?
        yield match.start(2), String.Delimiter, match.group(2)  # heredoc name

        ctx.pos = match.start(3)
        ctx.end = match.end(3)
        yield ctx.pos, String.Heredoc, match.group(3)
        ctx.pos = match.end()

        hdname = match.group(2)
        tolerant = True  # leading whitespace is always accepted

        lines = []

        for match in line_re.finditer(ctx.text, ctx.pos):
            if tolerant:
                check = match.group().strip()
            else:
                check = match.group().rstrip()
            if check == hdname:
                for amatch in lines:
                    yield amatch.start(), String.Heredoc, amatch.group()
                yield match.start(), String.Delimiter, match.group()
                ctx.pos = match.end()
                break
            else:
                lines.append(match)
        else:
            # end of heredoc not found -- error!
            for amatch in lines:
                yield amatch.start(), Error, amatch.group()
        ctx.end = len(ctx.text)

    tokens = {
        'root': [
            include('basic'),
            include('whitespace'),

            # Strings
            (r'(".*")', bygroups(String.Double)),

            # Constants
            (words(('true', 'false'), prefix=r'\b', suffix=r'\b'), Name.Constant),

            # Types
            (words(types, prefix=r'\b', suffix=r'\b'), Keyword.Type),

            include('identifier'),
            include('punctuation'),
            (r'[0-9]+', Number),
        ],
        'basic': [
            (r'\s*/\*', Comment.Multiline, 'comment'),
            (r'\s*(#|//).*\n', Comment.Single),
            include('whitespace'),

            # e.g. terraform {
            # e.g. egress {
            (r'(\s*)([0-9a-zA-Z-_]+)(\s*)(=?)(\s*)(\{)',
             bygroups(Whitespace, Name.Builtin, Whitespace, Operator, Whitespace, Punctuation)),

            # Assignment with attributes, e.g. something = ...
            (r'(\s*)([0-9a-zA-Z-_]+)(\s*)(=)(\s*)',
             bygroups(Whitespace, Name.Attribute, Whitespace, Operator, Whitespace)),

            # Assignment with environment variables and similar, e.g. "something" = ...
            # or key value assignment, e.g. "SlotName" : ...
            (r'(\s*)("\S+")(\s*)([=:])(\s*)',
             bygroups(Whitespace, Literal.String.Double, Whitespace, Operator, Whitespace)),

            # Functions, e.g. jsonencode(element("value"))
            (builtins_re + r'(\()', bygroups(Name.Function, Punctuation)),

            # List of attributes, e.g. ignore_changes = [last_modified, filename]
            (r'(\[)([a-z_,\s]+)(\])', bygroups(Punctuation, Name.Builtin, Punctuation)),

            # e.g. resource "aws_security_group" "allow_tls" {
            # e.g. backend "consul" {
            (classes_re + r'(\s+)("[0-9a-zA-Z-_]+")?(\s*)("[0-9a-zA-Z-_]+")(\s+)(\{)',
             bygroups(Keyword.Reserved, Whitespace, Name.Class, Whitespace, Name.Variable, Whitespace, Punctuation)),

            # here-doc style delimited strings
            (r'(<<-?)\s*([a-zA-Z_]\w*)(.*?\n)', heredoc_callback),
        ],
        'identifier': [
            (r'\b(var\.[0-9a-zA-Z-_\.\[\]]+)\b', bygroups(Name.Variable)),
            (r'\b([0-9a-zA-Z-_\[\]]+\.[0-9a-zA-Z-_\.\[\]]+)\b',
             bygroups(Name.Variable)),
        ],
        'punctuation': [
            (r'[\[\]()\{\},.?:!=]', Punctuation),
        ],
        'comment': [
            (r'[^*/]', Comment.Multiline),
            (r'/\*', Comment.Multiline, '#push'),
            (r'\*/', Comment.Multiline, '#pop'),
            (r'[*/]', Comment.Multiline)
        ],
        'whitespace': [
            (r'\n', Whitespace),
            (r'\s+', Whitespace),
            (r'(\\)(\n)', bygroups(Text, Whitespace)),
        ],
    }


class TermcapLexer(RegexLexer):
    """
    Lexer for termcap database source.

    This is very simple and minimal.

    .. versionadded:: 2.1
    """
    name = 'Termcap'
    aliases = ['termcap']
    filenames = ['termcap', 'termcap.src']
    mimetypes = []

    # NOTE:
    #   * multiline with trailing backslash
    #   * separator is ':'
    #   * to embed colon as data, we must use \072
    #   * space after separator is not allowed (mayve)
    tokens = {
        'root': [
            (r'^#.*', Comment),
            (r'^[^\s#:|]+', Name.Tag, 'names'),
            (r'\s+', Whitespace),
        ],
        'names': [
            (r'\n', Whitespace, '#pop'),
            (r':', Punctuation, 'defs'),
            (r'\|', Punctuation),
            (r'[^:|]+', Name.Attribute),
        ],
        'defs': [
            (r'(\\)(\n[ \t]*)', bygroups(Text, Whitespace)),
            (r'\n[ \t]*', Whitespace, '#pop:2'),
            (r'(#)([0-9]+)', bygroups(Operator, Number)),
            (r'=', Operator, 'data'),
            (r':', Punctuation),
            (r'[^\s:=#]+', Name.Class),
        ],
        'data': [
            (r'\\072', Literal),
            (r':', Punctuation, '#pop'),
            (r'[^:\\]+', Literal),  # for performance
            (r'.', Literal),
        ],
    }


class TerminfoLexer(RegexLexer):
    """
    Lexer for terminfo database source.

    This is very simple and minimal.

    .. versionadded:: 2.1
    """
    name = 'Terminfo'
    aliases = ['terminfo']
    filenames = ['terminfo', 'terminfo.src']
    mimetypes = []

    # NOTE:
    #   * multiline with leading whitespace
    #   * separator is ','
    #   * to embed comma as data, we can use \,
    #   * space after separator is allowed
    tokens = {
        'root': [
            (r'^#.*$', Comment),
            (r'^[^\s#,|]+', Name.Tag, 'names'),
            (r'\s+', Whitespace),
        ],
        'names': [
            (r'\n', Whitespace, '#pop'),
            (r'(,)([ \t]*)', bygroups(Punctuation, Whitespace), 'defs'),
            (r'\|', Punctuation),
            (r'[^,|]+', Name.Attribute),
        ],
        'defs': [
            (r'\n[ \t]+', Whitespace),
            (r'\n', Whitespace, '#pop:2'),
            (r'(#)([0-9]+)', bygroups(Operator, Number)),
            (r'=', Operator, 'data'),
            (r'(,)([ \t]*)', bygroups(Punctuation, Whitespace)),
            (r'[^\s,=#]+', Name.Class),
        ],
        'data': [
            (r'\\[,\\]', Literal),
            (r'(,)([ \t]*)', bygroups(Punctuation, Whitespace), '#pop'),
            (r'[^\\,]+', Literal),  # for performance
            (r'.', Literal),
        ],
    }


class PkgConfigLexer(RegexLexer):
    """
    Lexer for pkg-config
    (see also `manual page <http://linux.die.net/man/1/pkg-config>`_).

    .. versionadded:: 2.1
    """

    name = 'PkgConfig'
    url = 'http://www.freedesktop.org/wiki/Software/pkg-config/'
    aliases = ['pkgconfig']
    filenames = ['*.pc']
    mimetypes = []

    tokens = {
        'root': [
            (r'#.*$', Comment.Single),

            # variable definitions
            (r'^(\w+)(=)', bygroups(Name.Attribute, Operator)),

            # keyword lines
            (r'^([\w.]+)(:)',
             bygroups(Name.Tag, Punctuation), 'spvalue'),

            # variable references
            include('interp'),

            # fallback
            (r'\s+', Whitespace),
            (r'[^${}#=:\n.]+', Text),
            (r'.', Text),
        ],
        'interp': [
            # you can escape literal "$" as "$$"
            (r'\$\$', Text),

            # variable references
            (r'\$\{', String.Interpol, 'curly'),
        ],
        'curly': [
            (r'\}', String.Interpol, '#pop'),
            (r'\w+', Name.Attribute),
        ],
        'spvalue': [
            include('interp'),

            (r'#.*$', Comment.Single, '#pop'),
            (r'\n', Whitespace, '#pop'),

            # fallback
            (r'\s+', Whitespace),
            (r'[^${}#\n\s]+', Text),
            (r'.', Text),
        ],
    }


class PacmanConfLexer(RegexLexer):
    """
    Lexer for pacman.conf.

    Actually, IniLexer works almost fine for this format,
    but it yield error token. It is because pacman.conf has
    a form without assignment like:

        UseSyslog
        Color
        TotalDownload
        CheckSpace
        VerbosePkgLists

    These are flags to switch on.

    .. versionadded:: 2.1
    """

    name = 'PacmanConf'
    url = 'https://www.archlinux.org/pacman/pacman.conf.5.html'
    aliases = ['pacmanconf']
    filenames = ['pacman.conf']
    mimetypes = []

    tokens = {
        'root': [
            # comment
            (r'#.*$', Comment.Single),

            # section header
            (r'^(\s*)(\[.*?\])(\s*)$', bygroups(Whitespace, Keyword, Whitespace)),

            # variable definitions
            # (Leading space is allowed...)
            (r'(\w+)(\s*)(=)',
             bygroups(Name.Attribute, Whitespace, Operator)),

            # flags to on
            (r'^(\s*)(\w+)(\s*)$',
             bygroups(Whitespace, Name.Attribute, Whitespace)),

            # built-in special values
            (words((
                '$repo',  # repository
                '$arch',  # architecture
                '%o',     # outfile
                '%u',     # url
                ), suffix=r'\b'),
             Name.Variable),

            # fallback
            (r'\s+', Whitespace),
            (r'.', Text),
        ],
    }


class AugeasLexer(RegexLexer):
    """
    Lexer for Augeas.

    .. versionadded:: 2.4
    """
    name = 'Augeas'
    url = 'http://augeas.net'
    aliases = ['augeas']
    filenames = ['*.aug']

    tokens = {
        'root': [
            (r'(module)(\s*)([^\s=]+)', bygroups(Keyword.Namespace, Whitespace, Name.Namespace)),
            (r'(let)(\s*)([^\s=]+)', bygroups(Keyword.Declaration, Whitespace, Name.Variable)),
            (r'(del|store|value|counter|seq|key|label|autoload|incl|excl|transform|test|get|put)(\s+)', bygroups(Name.Builtin, Whitespace)),
            (r'(\()([^:]+)(\:)(unit|string|regexp|lens|tree|filter)(\))', bygroups(Punctuation, Name.Variable, Punctuation, Keyword.Type, Punctuation)),
            (r'\(\*', Comment.Multiline, 'comment'),
            (r'[*+\-.;=?|]', Operator),
            (r'[()\[\]{}]', Operator),
            (r'"', String.Double, 'string'),
            (r'\/', String.Regex, 'regex'),
            (r'([A-Z]\w*)(\.)(\w+)', bygroups(Name.Namespace, Punctuation, Name.Variable)),
            (r'.', Name.Variable),
            (r'\s+', Whitespace),
        ],
        'string': [
            (r'\\.', String.Escape),
            (r'[^"]', String.Double),
            (r'"', String.Double, '#pop'),
        ],
        'regex': [
            (r'\\.', String.Escape),
            (r'[^/]', String.Regex),
            (r'\/', String.Regex, '#pop'),
        ],
        'comment': [
            (r'[^*)]', Comment.Multiline),
            (r'\(\*', Comment.Multiline, '#push'),
            (r'\*\)', Comment.Multiline, '#pop'),
            (r'[)*]', Comment.Multiline)
        ],
    }


class TOMLLexer(RegexLexer):
    """
    Lexer for TOML, a simple language for config files.

    .. versionadded:: 2.4
    """

    name = 'TOML'
    aliases = ['toml']
    filenames = ['*.toml', 'Pipfile', 'poetry.lock']
    mimetypes = ['application/toml']
    url = 'https://toml.io'

    # Based on the TOML spec: https://toml.io/en/v1.0.0

    # The following is adapted from CPython's tomllib:
    _time = r"\d\d:\d\d:\d\d(\.\d+)?"
    _datetime = rf"""(?x)
                  \d\d\d\d-\d\d-\d\d # date, e.g., 1988-10-27
                (
                  [Tt ] {_time} # optional time
                  (
                    [Zz]|[+-]\d\d:\d\d # optional time offset
                  )?
                )?
              """

    tokens = {
        'root': [
            # Note that we make an effort in order to distinguish
            # moments at which we're parsing a key and moments at
            # which we're parsing a value. In the TOML code
            #
            #   1234 = 1234
            #
            # the first "1234" should be Name, the second Integer.

            # Whitespace
            (r'\s+', Whitespace),

            # Comment
            (r'#.*', Comment.Single),

            # Assignment keys
            include('key'),

            # After "=", find a value
            (r'(=)(\s*)', bygroups(Operator, Whitespace), 'value'),

            # Table header
            (r'\[\[?', Keyword, 'table-key'),
        ],
        'key': [
            # Start of bare key (only ASCII is allowed here).
            (r'[A-Za-z0-9_-]+', Name),
            # Quoted key
            (r'"', String.Double, 'basic-string'),
            (r"'", String.Single, 'literal-string'),
            # Dots act as separators in keys
            (r'\.', Punctuation),
        ],
        'table-key': [
            # This is like 'key', but highlights the name components
            # and separating dots as Keyword because it looks better
            # when the whole table header is Keyword. We do highlight
            # strings as strings though.
            # Start of bare key (only ASCII is allowed here).
            (r'[A-Za-z0-9_-]+', Keyword),
            (r'"', String.Double, 'basic-string'),
            (r"'", String.Single, 'literal-string'),
            (r'\.', Keyword),
            (r'\]\]?', Keyword, '#pop'),

            # Inline whitespace allowed
            (r'[ \t]+', Whitespace),
        ],
        'value': [
            # Datetime, baretime
            (_datetime, Literal.Date, '#pop'),
            (_time, Literal.Date, '#pop'),

            # Recognize as float if there is a fractional part
            # and/or an exponent.
            (r'[+-]?\d[0-9_]*[eE][+-]?\d[0-9_]*', Number.Float, '#pop'),
            (r'[+-]?\d[0-9_]*\.\d[0-9_]*([eE][+-]?\d[0-9_]*)?',
             Number.Float, '#pop'),

            # Infinities and NaN
            (r'[+-]?(inf|nan)', Number.Float, '#pop'),

            # Integers
            (r'-?0b[01_]+', Number.Bin, '#pop'),
            (r'-?0o[0-7_]+', Number.Oct, '#pop'),
            (r'-?0x[0-9a-fA-F_]+', Number.Hex, '#pop'),
            (r'[+-]?[0-9_]+', Number.Integer, '#pop'),

            # Strings
            (r'"""', String.Double, ('#pop', 'multiline-basic-string')),
            (r'"', String.Double, ('#pop', 'basic-string')),
            (r"'''", String.Single, ('#pop', 'multiline-literal-string')),
            (r"'", String.Single, ('#pop', 'literal-string')),

            # Booleans
            (r'true|false', Keyword.Constant, '#pop'),

            # Start of array
            (r'\[', Punctuation, ('#pop', 'array')),

            # Start of inline table
            (r'\{', Punctuation, ('#pop', 'inline-table')),
        ],
        'array': [
            # Whitespace, including newlines, is ignored inside arrays,
            # and comments are allowed.
            (r'\s+', Whitespace),
            (r'#.*', Comment.Single),

            # Delimiters
            (r',', Punctuation),

            # End of array
            (r'\]', Punctuation, '#pop'),

            # Parse a value and come back
            default('value'),
        ],
        'inline-table': [
            # Note that unlike inline arrays, inline tables do not
            # allow newlines or comments.
            (r'[ \t]+', Whitespace),

            # Keys
            include('key'),

            # Values
            (r'(=)(\s*)', bygroups(Punctuation, Whitespace), 'value'),

            # Delimiters
            (r',', Punctuation),

            # End of inline table
            (r'\}', Punctuation, '#pop'),
        ],
        'basic-string': [
            (r'"', String.Double, '#pop'),
            include('escapes'),
            (r'[^"\\]+', String.Double),
        ],
        'literal-string': [
            (r".*?'", String.Single, '#pop'),
        ],
        'multiline-basic-string': [
            (r'"""', String.Double, '#pop'),
            (r'(\\)(\n)', bygroups(String.Escape, Whitespace)),
            include('escapes'),
            (r'[^"\\]+', String.Double),
            (r'"', String.Double),
        ],
        'multiline-literal-string': [
            (r"'''", String.Single, '#pop'),
            (r"[^']+", String.Single),
            (r"'", String.Single),
        ],
        'escapes': [
            (r'\\u[0-9a-fA-F]{4}|\\U[0-9a-fA-F]{8}', String.Escape),
            (r'\\.', String.Escape),
        ],
    }

class NestedTextLexer(RegexLexer):
    """
    Lexer for *NextedText*, a human-friendly data format.

    .. versionadded:: 2.9

    .. versionchanged:: 2.16
        Added support for *NextedText* v3.0.
    """

    name = 'NestedText'
    url = 'https://nestedtext.org'
    aliases = ['nestedtext', 'nt']
    filenames = ['*.nt']

    tokens = {
        'root': [
            # Comment: # ...
            (r'^([ ]*)(#.*)$', bygroups(Whitespace, Comment)),

            # Inline dictionary: {...}
            (r'^([ ]*)(\{)', bygroups(Whitespace, Punctuation), 'inline_dict'),

            # Inline list: [...]
            (r'^([ ]*)(\[)', bygroups(Whitespace, Punctuation), 'inline_list'),

            # empty multiline string item: >
            (r'^([ ]*)(>)$', bygroups(Whitespace, Punctuation)),

            # multiline string item: > ...
            (r'^([ ]*)(>)( )(.*?)([ \t]*)$', bygroups(Whitespace, Punctuation, Whitespace, Text, Whitespace)),

            # empty list item: -
            (r'^([ ]*)(-)$', bygroups(Whitespace, Punctuation)),

            # list item: - ...
            (r'^([ ]*)(-)( )(.*?)([ \t]*)$', bygroups(Whitespace, Punctuation, Whitespace, Text, Whitespace)),

            # empty multiline key item: :
            (r'^([ ]*)(:)$', bygroups(Whitespace, Punctuation)),

            # multiline key item: : ...
            (r'^([ ]*)(:)( )([^\n]*?)([ \t]*)$', bygroups(Whitespace, Punctuation, Whitespace, Name.Tag, Whitespace)),

            # empty dict key item: ...:
            (r'^([ ]*)([^\{\[\s].*?)(:)$', bygroups(Whitespace, Name.Tag, Punctuation)),

            # dict key item: ...: ...
            (r'^([ ]*)([^\{\[\s].*?)(:)( )(.*?)([ \t]*)$', bygroups(Whitespace, Name.Tag, Punctuation, Whitespace, Text, Whitespace)),
        ],
        'inline_list': [
            include('whitespace'),
            (r'[^\{\}\[\],\s]+', Text),
            include('inline_value'),
            (r',', Punctuation),
            (r'\]', Punctuation, '#pop'),
            (r'\n', Error, '#pop'),
        ],
        'inline_dict': [
            include('whitespace'),
            (r'[^\{\}\[\],:\s]+', Name.Tag),
            (r':', Punctuation, 'inline_dict_value'),
            (r'\}', Punctuation, '#pop'),
            (r'\n', Error, '#pop'),
        ],
        'inline_dict_value': [
            include('whitespace'),
            (r'[^\{\}\[\],:\s]+', Text),
            include('inline_value'),
            (r',', Punctuation, '#pop'),
            (r'\}', Punctuation, '#pop:2'),
        ],
        'inline_value': [
            include('whitespace'),
            (r'\{', Punctuation, 'inline_dict'),
            (r'\[', Punctuation, 'inline_list'),
        ],
        'whitespace': [
            (r'[ \t]+', Whitespace),
        ],
    }


class SingularityLexer(RegexLexer):
    """
    Lexer for Singularity definition files.

    .. versionadded:: 2.6
    """

    name = 'Singularity'
    url = 'https://www.sylabs.io/guides/3.0/user-guide/definition_files.html'
    aliases = ['singularity']
    filenames = ['*.def', 'Singularity']
    flags = re.IGNORECASE | re.MULTILINE | re.DOTALL

    _headers = r'^(\s*)(bootstrap|from|osversion|mirrorurl|include|registry|namespace|includecmd)(:)'
    _section = r'^(%(?:pre|post|setup|environment|help|labels|test|runscript|files|startscript))(\s*)'
    _appsect = r'^(%app(?:install|help|run|labels|env|test|files))(\s*)'

    tokens = {
        'root': [
            (_section, bygroups(Generic.Heading, Whitespace), 'script'),
            (_appsect, bygroups(Generic.Heading, Whitespace), 'script'),
            (_headers, bygroups(Whitespace, Keyword, Text)),
            (r'\s*#.*?\n', Comment),
            (r'\b(([0-9]+\.?[0-9]*)|(\.[0-9]+))\b', Number),
            (r'[ \t]+', Whitespace),
            (r'(?!^\s*%).', Text),
        ],
        'script': [
            (r'(.+?(?=^\s*%))|(.*)', using(BashLexer), '#pop'),
        ],
    }

    def analyse_text(text):
        """This is a quite simple script file, but there are a few keywords
        which seem unique to this language."""
        result = 0
        if re.search(r'\b(?:osversion|includecmd|mirrorurl)\b', text, re.IGNORECASE):
            result += 0.5

        if re.search(SingularityLexer._section[1:], text):
            result += 0.49

        return result


class UnixConfigLexer(RegexLexer):
    """
    Lexer for Unix/Linux config files using colon-separated values, e.g.

    * ``/etc/group``
    * ``/etc/passwd``
    * ``/etc/shadow``

    .. versionadded:: 2.12
    """

    name = 'Unix/Linux config files'
    aliases = ['unixconfig', 'linuxconfig']
    filenames = []

    tokens = {
        'root': [
            (r'^#.*', Comment),
            (r'\n', Whitespace),
            (r':', Punctuation),
            (r'[0-9]+', Number),
            (r'((?!\n)[a-zA-Z0-9\_\-\s\(\),]){2,}', Text),
            (r'[^:\n]+', String),
        ],
    }
¿Qué es la limpieza dental de perros? - Clínica veterinaria


Es la eliminación del sarro y la placa adherida a la superficie de los dientes mediante un equipo de ultrasonidos que garantiza la integridad de las piezas dentales a la vez que elimina en profundidad cualquier resto de suciedad.

A continuación se procede al pulido de los dientes mediante una fresa especial que elimina la placa bacteriana y devuelve a los dientes el aspecto sano que deben tener.

Una vez terminado todo el proceso, se mantiene al perro en observación hasta que se despierta de la anestesia, bajo la atenta supervisión de un veterinario.

¿Cada cuánto tiempo tengo que hacerle una limpieza dental a mi perro?

A partir de cierta edad, los perros pueden necesitar una limpieza dental anual o bianual. Depende de cada caso. En líneas generales, puede decirse que los perros de razas pequeñas suelen acumular más sarro y suelen necesitar una atención mayor en cuanto a higiene dental.


Riesgos de una mala higiene


Los riesgos más evidentes de una mala higiene dental en los perros son los siguientes:

  • Cuando la acumulación de sarro no se trata, se puede producir una inflamación y retracción de las encías que puede descalzar el diente y provocar caídas.
  • Mal aliento (halitosis).
  • Sarro perros
  • Puede ir a más
  • Las bacterias de la placa pueden trasladarse a través del torrente circulatorio a órganos vitales como el corazón ocasionando problemas de endocarditis en las válvulas. Las bacterias pueden incluso acantonarse en huesos (La osteomielitis es la infección ósea, tanto cortical como medular) provocando mucho dolor y una artritis séptica).

¿Cómo se forma el sarro?

El sarro es la calcificación de la placa dental. Los restos de alimentos, junto con las bacterias presentes en la boca, van a formar la placa bacteriana o placa dental. Si la placa no se retira, al mezclarse con la saliva y los minerales presentes en ella, reaccionará formando una costra. La placa se calcifica y se forma el sarro.

El sarro, cuando se forma, es de color blanquecino pero a medida que pasa el tiempo se va poniendo amarillo y luego marrón.

Síntomas de una pobre higiene dental
La señal más obvia de una mala salud dental canina es el mal aliento.

Sin embargo, a veces no es tan fácil de detectar
Y hay perros que no se dejan abrir la boca por su dueño. Por ejemplo…

Recientemente nos trajeron a la clínica a un perro que parpadeaba de un ojo y decía su dueño que le picaba un lado de la cara. Tenía molestias y dificultad para comer, lo que había llevado a sus dueños a comprarle comida blanda (que suele ser un poco más cara y llevar más contenido en grasa) durante medio año. Después de una exploración oftalmológica, nos dimos cuenta de que el ojo tenía una úlcera en la córnea probablemente de rascarse . Además, el canto lateral del ojo estaba inflamado. Tenía lo que en humanos llamamos flemón pero como era un perro de pelo largo, no se le notaba a simple vista. Al abrirle la boca nos llamó la atención el ver una muela llena de sarro. Le realizamos una radiografía y encontramos una fístula que llegaba hasta la parte inferior del ojo.

Le tuvimos que extraer la muela. Tras esto, el ojo se curó completamente con unos colirios y una lentilla protectora de úlcera. Afortunadamente, la úlcera no profundizó y no perforó el ojo. Ahora el perro come perfectamente a pesar de haber perdido una muela.

¿Cómo mantener la higiene dental de tu perro?
Hay varias maneras de prevenir problemas derivados de la salud dental de tu perro.

Limpiezas de dientes en casa
Es recomendable limpiar los dientes de tu perro semanal o diariamente si se puede. Existe una gran variedad de productos que se pueden utilizar:

Pastas de dientes.
Cepillos de dientes o dedales para el dedo índice, que hacen más fácil la limpieza.
Colutorios para echar en agua de bebida o directamente sobre el diente en líquido o en spray.

En la Clínica Tus Veterinarios enseñamos a nuestros clientes a tomar el hábito de limpiar los dientes de sus perros desde que son cachorros. Esto responde a nuestro compromiso con la prevención de enfermedades caninas.

Hoy en día tenemos muchos clientes que limpian los dientes todos los días a su mascota, y como resultado, se ahorran el dinero de hacer limpiezas dentales profesionales y consiguen una mejor salud de su perro.


Limpiezas dentales profesionales de perros y gatos

Recomendamos hacer una limpieza dental especializada anualmente. La realizamos con un aparato de ultrasonidos que utiliza agua para quitar el sarro. Después, procedemos a pulir los dientes con un cepillo de alta velocidad y una pasta especial. Hacemos esto para proteger el esmalte.

La frecuencia de limpiezas dentales necesaria varía mucho entre razas. En general, las razas grandes tienen buena calidad de esmalte, por lo que no necesitan hacerlo tan a menudo e incluso pueden pasarse la vida sin requerir una limpieza. Sin embargo, razas pequeñas como el Yorkshire o el Maltés, deben hacérselas todos los años desde cachorros si se quiere conservar sus piezas dentales.

Otro factor fundamental es la calidad del pienso. Algunas marcas han diseñado croquetas que limpian la superficie del diente y de la muela al masticarse.

Ultrasonido para perros

¿Se necesita anestesia para las limpiezas dentales de perros y gatos?

La limpieza dental en perros no es una técnica que pueda practicarse sin anestesia general , aunque hay veces que los propietarios no quieren anestesiar y si tiene poco sarro y el perro es muy bueno se puede intentar…… , pero no se va a poder pulir ni acceder a todas la zona de la boca …. Además los limpiadores dentales van a irrigar agua y hay riesgo de aspiración a vías respiratorias si no se realiza una anestesia correcta con intubación traqueal . En resumen , sin anestesia no se va hacer una correcta limpieza dental.

Tampoco sirve la sedación ya que necesitamos que el animal esté totalmente quieto, y el veterinario tenga un acceso completo a todas sus piezas dentales y encías.

Alimentos para la limpieza dental

Hay que tener cierto cuidado a la hora de comprar determinados alimentos porque no todos son saludables. Algunos tienen demasiado contenido graso, que en exceso puede causar problemas cardiovasculares y obesidad.

Los mejores alimentos para los dientes son aquellos que están elaborados por empresas farmacéuticas y llevan componentes químicos con tratamientos específicos para el diente del perro. Esto implica no solo limpieza a través de la acción mecánica de morder sino también un tratamiento antibacteriano para prevenir el sarro.

Conclusión

Si eres como la mayoría de dueños, por falta de tiempo , es probable que no estés prestando la suficiente atención a la limpieza dental de tu perro. Por eso te animamos a que comiences a limpiar los dientes de tu perro y consideres atender a su higiene bucal con frecuencia.

Estas simples medidas pueden conllevar a que tu perro tenga una vida más larga y mucho más saludable.

Si te resulta imposible introducir un cepillo de dientes a tu perro en la boca, pásate con él por clínica Tus Veterinarios y te explicamos cómo hacerlo.

Necesitas hacer una limpieza dental profesional a tu mascota?
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