1 files changed, 106 insertions, 0 deletions
diff --git a/venv/lib/python3.11/site-packages/pygments/lexers/dns.py b/venv/lib/python3.11/site-packages/pygments/lexers/dns.py
new file mode 100644
index 0000000..18cab31
--- /dev/null
+++ b/venv/lib/python3.11/site-packages/pygments/lexers/dns.py
@@ -0,0 +1,106 @@
+"""
+    pygments.lexers.dns
+    ~~~~~~~~~~~~~~~~~~~
+
+    Pygments lexers for DNS
+
+    :copyright: Copyright 2006-2023 by the Pygments team, see AUTHORS.
+    :license: BSD, see LICENSE for details.
+"""
+
+import re
+
+from pygments.token import Comment, Operator, Keyword, Name, String, \
+    Number, Punctuation, Whitespace, Literal
+from pygments.lexer import RegexLexer, bygroups, include
+
+__all__ = ['DnsZoneLexer']
+
+
+CLASSES = [
+    "IN",
+    "CS",
+    "CH",
+    "HS",
+]
+
+CLASSES_RE = "(" + "|".join(CLASSES) + ')'
+
+
+class DnsZoneLexer(RegexLexer):
+
+    """
+    Lexer for DNS zone file
+
+    .. versionadded:: 2.16
+    """
+
+    flags = re.MULTILINE
+
+    name = 'Zone'
+    aliases = ['zone']
+    filenames = [ "*.zone" ]
+    url = "https://datatracker.ietf.org/doc/html/rfc1035"
+    mimetypes = ['text/dns']
+
+    tokens = {
+       'root': [
+            # Empty/comment line:
+            (r'([ \t]*)(;.*)(\n)', bygroups(Whitespace, Comment.Single, Whitespace)),
+            # Special directives:
+            (r'^\$ORIGIN\b', Keyword, 'values'),
+            (r'^\$TTL\b', Keyword, 'values'),
+            (r'^\$INCLUDE\b', Comment.Preproc, 'include'),
+            # TODO, $GENERATE https://bind9.readthedocs.io/en/v9.18.14/chapter3.html#soa-rr
+            (r'^\$[A-Z]+\b', Keyword, 'values'),
+            # Records:
+            # <domain-name> [<TTL>] [<class>] <type> <RDATA> [<comment>]
+            (r'^(@)([ \t]+)(?:([0-9]+[smhdw]?)([ \t]+))?(?:' + CLASSES_RE + "([ \t]+))?([A-Z]+)([ \t]+)", 
+                bygroups(Operator, Whitespace, Number.Integer, Whitespace, Name.Class, Whitespace, Keyword.Type, Whitespace),
+                "values"),
+            (r'^([^ \t\n]*)([ \t]+)(?:([0-9]+[smhdw]?)([ \t]+))?(?:' + CLASSES_RE + "([ \t]+))?([A-Z]+)([ \t]+)", 
+                bygroups(Name, Whitespace, Number.Integer, Whitespace, Name.Class, Whitespace, Keyword.Type, Whitespace),
+                "values"),
+            # <domain-name> [<class>] [<TTL>] <type> <RDATA> [<comment>]
+            (r'^(Operator)([ \t]+)(?:' + CLASSES_RE + "([ \t]+))?(?:([0-9]+[smhdw]?)([ \t]+))?([A-Z]+)([ \t]+)", 
+                bygroups(Name, Whitespace, Number.Integer, Whitespace, Name.Class, Whitespace, Keyword.Type, Whitespace),
+                "values"),
+            (r'^([^ \t\n]*)([ \t]+)(?:' + CLASSES_RE + "([ \t]+))?(?:([0-9]+[smhdw]?)([ \t]+))?([A-Z]+)([ \t]+)", 
+                bygroups(Name, Whitespace, Number.Integer, Whitespace, Name.Class, Whitespace, Keyword.Type, Whitespace),
+                "values"),
+        ],
+        # Parsing values:
+        'values': [
+            (r'\n', Whitespace, "#pop"),
+            (r'\(', Punctuation, 'nested'),
+            include('simple-values'),
+        ],
+        # Parsing nested values (...):
+        'nested': [
+            (r'\)', Punctuation, "#pop"),
+            include('simple-values'),
+        ],
+        # Parsing values:
+        'simple-values': [
+            (r'(;.*)(\n)', bygroups(Comment.Single, Whitespace)),
+            (r'[ \t]+', Whitespace),
+            (r"@\b", Operator),
+            ('"', String, 'string'),
+            (r'[0-9]+[smhdw]?$', Number.Integer),
+            (r'([0-9]+[smhdw]?)([ \t]+)', bygroups(Number.Integer, Whitespace)),
+            (r'\S+', Literal),
+        ],
+        'include': [
+            (r'([ \t]+)([^ \t\n]+)([ \t]+)([-\._a-zA-Z]+)([ \t]+)(;.*)?$',
+             bygroups(Whitespace, Comment.PreprocFile, Whitespace, Name, Whitespace, Comment.Single), '#pop'),
+            (r'([ \t]+)([^ \t\n]+)([ \t\n]+)$', bygroups(Whitespace, Comment.PreprocFile, Whitespace), '#pop'),
+        ],
+        "string": [
+            (r'\\"', String),
+            (r'"', String, "#pop"),
+            (r'[^"]+', String),
+        ]
+    }
+
+    def analyse_text(text):
+        return text.startswith("$ORIGIN")