XMAN Replicator

Path: /opt/cloudlinux/venv/lib/python3.11/site-packages/pip/_vendor/packaging/

Name	Size	Rights	Date	Actions
[.]	<DIR>	drwxr-xr-x	2026-02-06 06:01	🔄 🗑️ 🗑️📁 ⬇️ 🔒
[..]	<DIR>	drwxr-xr-x	2026-02-06 06:02	🔄 🗑️ 🗑️📁 ⬇️ 🔒
LICENSE	197 B	-rw-r--r--	2026-01-20 13:01	✏️ 🔄 🗑️ ⬇️ 🔒
LICENSE.APACHE	10,174 B	-rw-r--r--	2026-01-20 13:01	✏️ 🔄 🗑️ ⬇️ 🔒
LICENSE.BSD	1,344 B	-rw-r--r--	2026-01-20 13:01	✏️ 🔄 🗑️ ⬇️ 🔒
__init__.py	494 B	-rw-r--r--	2026-01-20 13:01	✏️ 🔄 🗑️ ⬇️ 🔒
[__pycache__]	<DIR>	drwxr-xr-x	2026-02-06 06:01	🔄 🗑️ 🗑️📁 ⬇️ 🔒
_elffile.py	3,286 B	-rw-r--r--	2026-01-20 13:01	✏️ 🔄 🗑️ ⬇️ 🔒
_manylinux.py	9,596 B	-rw-r--r--	2026-01-20 13:01	✏️ 🔄 🗑️ ⬇️ 🔒
_musllinux.py	2,694 B	-rw-r--r--	2026-01-20 13:01	✏️ 🔄 🗑️ ⬇️ 🔒
_parser.py	10,221 B	-rw-r--r--	2026-01-20 13:01	✏️ 🔄 🗑️ ⬇️ 🔒
_structures.py	1,431 B	-rw-r--r--	2026-01-20 13:01	✏️ 🔄 🗑️ ⬇️ 🔒
_tokenizer.py	5,310 B	-rw-r--r--	2026-01-20 13:01	✏️ 🔄 🗑️ ⬇️ 🔒
[licenses]	<DIR>	drwxr-xr-x	2026-02-06 06:01	🔄 🗑️ 🗑️📁 ⬇️ 🔒
markers.py	12,049 B	-rw-r--r--	2026-01-20 13:01	✏️ 🔄 🗑️ ⬇️ 🔒
metadata.py	34,739 B	-rw-r--r--	2026-01-20 13:01	✏️ 🔄 🗑️ ⬇️ 🔒
py.typed	0 B	-rw-r--r--	2026-01-20 13:01	✏️ 🔄 🗑️ ⬇️ 🔒
requirements.py	2,947 B	-rw-r--r--	2026-01-20 13:01	✏️ 🔄 🗑️ ⬇️ 🔒
specifiers.py	40,079 B	-rw-r--r--	2026-01-20 13:01	✏️ 🔄 🗑️ ⬇️ 🔒
tags.py	22,745 B	-rw-r--r--	2026-01-20 13:01	✏️ 🔄 🗑️ ⬇️ 🔒
utils.py	5,050 B	-rw-r--r--	2026-01-20 13:01	✏️ 🔄 🗑️ ⬇️ 🔒
version.py	16,688 B	-rw-r--r--	2026-01-20 13:01	✏️ 🔄 🗑️ ⬇️ 🔒

Edit: _tokenizer.py

from __future__ import annotations

import contextlib
import re
from dataclasses import dataclass
from typing import Iterator, NoReturn

from .specifiers import Specifier

@dataclass
class Token:
    name: str
    text: str
    position: int

class ParserSyntaxError(Exception):
    """The provided source text could not be parsed correctly."""

def __init__(
        self,
        message: str,
        *,
        source: str,
        span: tuple[int, int],
    ) -> None:
        self.span = span
        self.message = message
        self.source = source

super().__init__()

def __str__(self) -> str:
        marker = " " * self.span[0] + "~" * (self.span[1] - self.span[0]) + "^"
        return "\n    ".join([self.message, self.source, marker])

DEFAULT_RULES: dict[str, str | re.Pattern[str]] = {
    "LEFT_PARENTHESIS": r"$",
    "RIGHT_PARENTHESIS": r"$",
    "LEFT_BRACKET": r"\[",
    "RIGHT_BRACKET": r"\]",
    "SEMICOLON": r";",
    "COMMA": r",",
    "QUOTED_STRING": re.compile(
        r"""
            (
                ('[^']*')
                |
                ("[^"]*")
            )
        """,
        re.VERBOSE,
    ),
    "OP": r"(===|==|~=|!=|<=|>=|<|>)",
    "BOOLOP": r"\b(or|and)\b",
    "IN": r"\bin\b",
    "NOT": r"\bnot\b",
    "VARIABLE": re.compile(
        r"""
            \b(
                python_version
                |python_full_version
                |os[._]name
                |sys[._]platform
                |platform_(release|system)
                |platform[._](version|machine|python_implementation)
                |python_implementation
                |implementation_(name|version)
                |extras?
                |dependency_groups
            )\b
        """,
        re.VERBOSE,
    ),
    "SPECIFIER": re.compile(
        Specifier._operator_regex_str + Specifier._version_regex_str,
        re.VERBOSE | re.IGNORECASE,
    ),
    "AT": r"\@",
    "URL": r"[^ \t]+",
    "IDENTIFIER": r"\b[a-zA-Z0-9][a-zA-Z0-9._-]*\b",
    "VERSION_PREFIX_TRAIL": r"\.\*",
    "VERSION_LOCAL_LABEL_TRAIL": r"\+[a-z0-9]+(?:[-_\.][a-z0-9]+)*",
    "WS": r"[ \t]+",
    "END": r"$",
}

class Tokenizer:
    """Context-sensitive token parsing.

Provides methods to examine the input stream to check whether the next token
    matches.
    """

def __init__(
        self,
        source: str,
        *,
        rules: dict[str, str | re.Pattern[str]],
    ) -> None:
        self.source = source
        self.rules: dict[str, re.Pattern[str]] = {
            name: re.compile(pattern) for name, pattern in rules.items()
        }
        self.next_token: Token | None = None
        self.position = 0

def consume(self, name: str) -> None:
        """Move beyond provided token name, if at current position."""
        if self.check(name):
            self.read()

def check(self, name: str, *, peek: bool = False) -> bool:
        """Check whether the next token has the provided name.

By default, if the check succeeds, the token *must* be read before
        another check. If `peek` is set to `True`, the token is not loaded and
        would need to be checked again.
        """
        assert self.next_token is None, (
            f"Cannot check for {name!r}, already have {self.next_token!r}"
        )
        assert name in self.rules, f"Unknown token name: {name!r}"

expression = self.rules[name]

match = expression.match(self.source, self.position)
        if match is None:
            return False
        if not peek:
            self.next_token = Token(name, match[0], self.position)
        return True

def expect(self, name: str, *, expected: str) -> Token:
        """Expect a certain token name next, failing with a syntax error otherwise.

The token is *not* read.
        """
        if not self.check(name):
            raise self.raise_syntax_error(f"Expected {expected}")
        return self.read()

def read(self) -> Token:
        """Consume the next token and return it."""
        token = self.next_token
        assert token is not None

self.position += len(token.text)
        self.next_token = None

return token

def raise_syntax_error(
        self,
        message: str,
        *,
        span_start: int | None = None,
        span_end: int | None = None,
    ) -> NoReturn:
        """Raise ParserSyntaxError at the given position."""
        span = (
            self.position if span_start is None else span_start,
            self.position if span_end is None else span_end,
        )
        raise ParserSyntaxError(
            message,
            source=self.source,
            span=span,
        )

@contextlib.contextmanager
    def enclosing_tokens(
        self, open_token: str, close_token: str, *, around: str
    ) -> Iterator[None]:
        if self.check(open_token):
            open_position = self.position
            self.read()
        else:
            open_position = None

yield

if open_position is None:
            return

if not self.check(close_token):
            self.raise_syntax_error(
                f"Expected matching {close_token} for {open_token}, after {around}",
                span_start=open_position,
            )

self.read()

🛸 XMAN Replicator

Edit: _tokenizer.py

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