Restoring authorship annotation for <[email protected]>. Commit 1 of 2.

1 files changed, 536 insertions, 536 deletions

diff --git a/contrib/python/Jinja2/py3/jinja2/utils.py b/contrib/python/Jinja2/py3/jinja2/utils.py
index 567185f41fc..20bbfa90cd6 100644
--- a/contrib/python/Jinja2/py3/jinja2/utils.py
+++ b/contrib/python/Jinja2/py3/jinja2/utils.py
@@ -1,164 +1,164 @@
-import enum
-import json
-import os
+import enum 
+import json 
+import os 
 import re
-import typing as t
-import warnings
-from collections import abc
+import typing as t 
+import warnings 
+from collections import abc 
 from collections import deque
-from random import choice
-from random import randrange
+from random import choice 
+from random import randrange 
 from threading import Lock
-from types import CodeType
-from urllib.parse import quote_from_bytes
+from types import CodeType 
+from urllib.parse import quote_from_bytes 
 
-import markupsafe
-
-if t.TYPE_CHECKING:
-    import typing_extensions as te
-
-F = t.TypeVar("F", bound=t.Callable[..., t.Any])
+import markupsafe 
 
+if t.TYPE_CHECKING: 
+    import typing_extensions as te 
+ 
+F = t.TypeVar("F", bound=t.Callable[..., t.Any]) 
+ 
 # special singleton representing missing values for the runtime
-missing: t.Any = type("MissingType", (), {"__repr__": lambda x: "missing"})()
-
-internal_code: t.MutableSet[CodeType] = set()
+missing: t.Any = type("MissingType", (), {"__repr__": lambda x: "missing"})() 
 
-concat = "".join
+internal_code: t.MutableSet[CodeType] = set() 
 
+concat = "".join 
 
-def pass_context(f: F) -> F:
-    """Pass the :class:`~jinja2.runtime.Context` as the first argument
-    to the decorated function when called while rendering a template.
 
-    Can be used on functions, filters, and tests.
+def pass_context(f: F) -> F: 
+    """Pass the :class:`~jinja2.runtime.Context` as the first argument 
+    to the decorated function when called while rendering a template. 
 
-    If only ``Context.eval_context`` is needed, use
-    :func:`pass_eval_context`. If only ``Context.environment`` is
-    needed, use :func:`pass_environment`.
+    Can be used on functions, filters, and tests. 
 
-    .. versionadded:: 3.0.0
-        Replaces ``contextfunction`` and ``contextfilter``.
+    If only ``Context.eval_context`` is needed, use 
+    :func:`pass_eval_context`. If only ``Context.environment`` is 
+    needed, use :func:`pass_environment`. 
+ 
+    .. versionadded:: 3.0.0 
+        Replaces ``contextfunction`` and ``contextfilter``. 
     """
-    f.jinja_pass_arg = _PassArg.context  # type: ignore
+    f.jinja_pass_arg = _PassArg.context  # type: ignore 
     return f
 
 
-def pass_eval_context(f: F) -> F:
-    """Pass the :class:`~jinja2.nodes.EvalContext` as the first argument
-    to the decorated function when called while rendering a template.
-    See :ref:`eval-context`.
-
-    Can be used on functions, filters, and tests.
-
-    If only ``EvalContext.environment`` is needed, use
-    :func:`pass_environment`.
+def pass_eval_context(f: F) -> F: 
+    """Pass the :class:`~jinja2.nodes.EvalContext` as the first argument 
+    to the decorated function when called while rendering a template. 
+    See :ref:`eval-context`. 
 
-    .. versionadded:: 3.0.0
-        Replaces ``evalcontextfunction`` and ``evalcontextfilter``.
+    Can be used on functions, filters, and tests. 
+ 
+    If only ``EvalContext.environment`` is needed, use 
+    :func:`pass_environment`. 
+ 
+    .. versionadded:: 3.0.0 
+        Replaces ``evalcontextfunction`` and ``evalcontextfilter``. 
     """
-    f.jinja_pass_arg = _PassArg.eval_context  # type: ignore
+    f.jinja_pass_arg = _PassArg.eval_context  # type: ignore 
     return f
 
 
-def pass_environment(f: F) -> F:
-    """Pass the :class:`~jinja2.Environment` as the first argument to
-    the decorated function when called while rendering a template.
-
-    Can be used on functions, filters, and tests.
-
-    .. versionadded:: 3.0.0
-        Replaces ``environmentfunction`` and ``environmentfilter``.
+def pass_environment(f: F) -> F: 
+    """Pass the :class:`~jinja2.Environment` as the first argument to 
+    the decorated function when called while rendering a template. 
+ 
+    Can be used on functions, filters, and tests. 
+ 
+    .. versionadded:: 3.0.0 
+        Replaces ``environmentfunction`` and ``environmentfilter``. 
     """
-    f.jinja_pass_arg = _PassArg.environment  # type: ignore
+    f.jinja_pass_arg = _PassArg.environment  # type: ignore 
     return f
 
 
-class _PassArg(enum.Enum):
-    context = enum.auto()
-    eval_context = enum.auto()
-    environment = enum.auto()
-
-    @classmethod
-    def from_obj(cls, obj: F) -> t.Optional["_PassArg"]:
-        if hasattr(obj, "jinja_pass_arg"):
-            return obj.jinja_pass_arg  # type: ignore
-
-        for prefix in "context", "eval_context", "environment":
-            squashed = prefix.replace("_", "")
-
-            for name in f"{squashed}function", f"{squashed}filter":
-                if getattr(obj, name, False) is True:
-                    warnings.warn(
-                        f"{name!r} is deprecated and will stop working"
-                        f" in Jinja 3.1. Use 'pass_{prefix}' instead.",
-                        DeprecationWarning,
-                        stacklevel=2,
-                    )
-                    return cls[prefix]
-
-        return None
-
-
-def contextfunction(f: F) -> F:
-    """Pass the context as the first argument to the decorated function.
-
-    .. deprecated:: 3.0
-        Will be removed in Jinja 3.1. Use :func:`~jinja2.pass_context`
-        instead.
-    """
-    warnings.warn(
-        "'contextfunction' is renamed to 'pass_context', the old name"
-        " will be removed in Jinja 3.1.",
-        DeprecationWarning,
-        stacklevel=2,
-    )
-    return pass_context(f)
-
-
-def evalcontextfunction(f: F) -> F:
-    """Pass the eval context as the first argument to the decorated
-    function.
-
-    .. deprecated:: 3.0
-        Will be removed in Jinja 3.1. Use
-        :func:`~jinja2.pass_eval_context` instead.
-
-    .. versionadded:: 2.4
-    """
-    warnings.warn(
-        "'evalcontextfunction' is renamed to 'pass_eval_context', the"
-        " old name will be removed in Jinja 3.1.",
-        DeprecationWarning,
-        stacklevel=2,
-    )
-    return pass_eval_context(f)
-
-
-def environmentfunction(f: F) -> F:
-    """Pass the environment as the first argument to the decorated
-    function.
-
-    .. deprecated:: 3.0
-        Will be removed in Jinja 3.1. Use
-        :func:`~jinja2.pass_environment` instead.
-    """
-    warnings.warn(
-        "'environmentfunction' is renamed to 'pass_environment', the"
-        " old name will be removed in Jinja 3.1.",
-        DeprecationWarning,
-        stacklevel=2,
-    )
-    return pass_environment(f)
-
-
-def internalcode(f: F) -> F:
+class _PassArg(enum.Enum): 
+    context = enum.auto() 
+    eval_context = enum.auto() 
+    environment = enum.auto() 
+ 
+    @classmethod 
+    def from_obj(cls, obj: F) -> t.Optional["_PassArg"]: 
+        if hasattr(obj, "jinja_pass_arg"): 
+            return obj.jinja_pass_arg  # type: ignore 
+ 
+        for prefix in "context", "eval_context", "environment": 
+            squashed = prefix.replace("_", "") 
+ 
+            for name in f"{squashed}function", f"{squashed}filter": 
+                if getattr(obj, name, False) is True: 
+                    warnings.warn( 
+                        f"{name!r} is deprecated and will stop working" 
+                        f" in Jinja 3.1. Use 'pass_{prefix}' instead.", 
+                        DeprecationWarning, 
+                        stacklevel=2, 
+                    ) 
+                    return cls[prefix] 
+ 
+        return None 
+ 
+ 
+def contextfunction(f: F) -> F: 
+    """Pass the context as the first argument to the decorated function. 
+ 
+    .. deprecated:: 3.0 
+        Will be removed in Jinja 3.1. Use :func:`~jinja2.pass_context` 
+        instead. 
+    """ 
+    warnings.warn( 
+        "'contextfunction' is renamed to 'pass_context', the old name" 
+        " will be removed in Jinja 3.1.", 
+        DeprecationWarning, 
+        stacklevel=2, 
+    ) 
+    return pass_context(f) 
+ 
+ 
+def evalcontextfunction(f: F) -> F: 
+    """Pass the eval context as the first argument to the decorated 
+    function. 
+ 
+    .. deprecated:: 3.0 
+        Will be removed in Jinja 3.1. Use 
+        :func:`~jinja2.pass_eval_context` instead. 
+ 
+    .. versionadded:: 2.4 
+    """ 
+    warnings.warn( 
+        "'evalcontextfunction' is renamed to 'pass_eval_context', the" 
+        " old name will be removed in Jinja 3.1.", 
+        DeprecationWarning, 
+        stacklevel=2, 
+    ) 
+    return pass_eval_context(f) 
+ 
+ 
+def environmentfunction(f: F) -> F: 
+    """Pass the environment as the first argument to the decorated 
+    function. 
+ 
+    .. deprecated:: 3.0 
+        Will be removed in Jinja 3.1. Use 
+        :func:`~jinja2.pass_environment` instead. 
+    """ 
+    warnings.warn( 
+        "'environmentfunction' is renamed to 'pass_environment', the" 
+        " old name will be removed in Jinja 3.1.", 
+        DeprecationWarning, 
+        stacklevel=2, 
+    ) 
+    return pass_environment(f) 
+ 
+ 
+def internalcode(f: F) -> F: 
     """Marks the function as internally used"""
     internal_code.add(f.__code__)
     return f
 
 
-def is_undefined(obj: t.Any) -> bool:
+def is_undefined(obj: t.Any) -> bool: 
     """Check if the object passed is undefined.  This does nothing more than
     performing an instance check against :class:`Undefined` but looks nicer.
     This can be used for custom filters or tests that want to react to
@@ -170,31 +170,31 @@ def is_undefined(obj: t.Any) -> bool:
                 return default
             return var
     """
-    from .runtime import Undefined
-
+    from .runtime import Undefined 
+ 
     return isinstance(obj, Undefined)
 
 
-def consume(iterable: t.Iterable[t.Any]) -> None:
+def consume(iterable: t.Iterable[t.Any]) -> None: 
     """Consumes an iterable without doing anything with it."""
-    for _ in iterable:
+    for _ in iterable: 
         pass
 
 
-def clear_caches() -> None:
-    """Jinja keeps internal caches for environments and lexers.  These are
-    used so that Jinja doesn't have to recreate environments and lexers all
+def clear_caches() -> None: 
+    """Jinja keeps internal caches for environments and lexers.  These are 
+    used so that Jinja doesn't have to recreate environments and lexers all 
     the time.  Normally you don't have to care about that but if you are
     measuring memory consumption you may want to clean the caches.
     """
-    from .environment import get_spontaneous_environment
-    from .lexer import _lexer_cache
-
-    get_spontaneous_environment.cache_clear()
+    from .environment import get_spontaneous_environment 
+    from .lexer import _lexer_cache 
+ 
+    get_spontaneous_environment.cache_clear() 
     _lexer_cache.clear()
 
 
-def import_string(import_name: str, silent: bool = False) -> t.Any:
+def import_string(import_name: str, silent: bool = False) -> t.Any: 
     """Imports an object based on a string.  This is useful if you want to
     use import paths as endpoints or something similar.  An import path can
     be specified either in dotted notation (``xml.sax.saxutils.escape``)
@@ -206,10 +206,10 @@ def import_string(import_name: str, silent: bool = False) -> t.Any:
     :return: imported object
     """
     try:
-        if ":" in import_name:
-            module, obj = import_name.split(":", 1)
-        elif "." in import_name:
-            module, _, obj = import_name.rpartition(".")
+        if ":" in import_name: 
+            module, obj = import_name.split(":", 1) 
+        elif "." in import_name: 
+            module, _, obj = import_name.rpartition(".") 
         else:
             return __import__(import_name)
         return getattr(__import__(module, None, None, [obj]), obj)
@@ -218,199 +218,199 @@ def import_string(import_name: str, silent: bool = False) -> t.Any:
             raise
 
 
-def open_if_exists(filename: str, mode: str = "rb") -> t.Optional[t.IO]:
+def open_if_exists(filename: str, mode: str = "rb") -> t.Optional[t.IO]: 
     """Returns a file descriptor for the filename if that file exists,
-    otherwise ``None``.
+    otherwise ``None``. 
     """
-    if not os.path.isfile(filename):
-        return None
+    if not os.path.isfile(filename): 
+        return None 
 
-    return open(filename, mode)
+    return open(filename, mode) 
 
-
-def object_type_repr(obj: t.Any) -> str:
+ 
+def object_type_repr(obj: t.Any) -> str: 
     """Returns the name of the object's type.  For some recognized
     singletons the name of the object is returned instead. (For
     example for `None` and `Ellipsis`).
     """
     if obj is None:
-        return "None"
+        return "None" 
     elif obj is Ellipsis:
-        return "Ellipsis"
-
-    cls = type(obj)
-
-    if cls.__module__ == "builtins":
-        return f"{cls.__name__} object"
-
-    return f"{cls.__module__}.{cls.__name__} object"
-
-
-def pformat(obj: t.Any) -> str:
-    """Format an object using :func:`pprint.pformat`."""
-    from pprint import pformat  # type: ignore
-
-    return pformat(obj)
-
-
-_http_re = re.compile(
-    r"""
-    ^
-    (
-        (https?://|www\.)  # scheme or www
-        (([\w%-]+\.)+)?  # subdomain
-        (
-            [a-z]{2,63}  # basic tld
-        |
-            xn--[\w%]{2,59}  # idna tld
-        )
-    |
-        ([\w%-]{2,63}\.)+  # basic domain
-        (com|net|int|edu|gov|org|info|mil)  # basic tld
-    |
-        (https?://)  # scheme
-        (
-            (([\d]{1,3})(\.[\d]{1,3}){3})  # IPv4
-        |
-            (\[([\da-f]{0,4}:){2}([\da-f]{0,4}:?){1,6}])  # IPv6
-        )
-    )
-    (?::[\d]{1,5})?  # port
-    (?:[/?#]\S*)?  # path, query, and fragment
-    $
-    """,
-    re.IGNORECASE | re.VERBOSE,
-)
-_email_re = re.compile(r"^\S+@\w[\w.-]*\.\w+$")
-
-
-def urlize(
-    text: str,
-    trim_url_limit: t.Optional[int] = None,
-    rel: t.Optional[str] = None,
-    target: t.Optional[str] = None,
-    extra_schemes: t.Optional[t.Iterable[str]] = None,
-) -> str:
-    """Convert URLs in text into clickable links.
-
-    This may not recognize links in some situations. Usually, a more
-    comprehensive formatter, such as a Markdown library, is a better
-    choice.
-
-    Works on ``http://``, ``https://``, ``www.``, ``mailto:``, and email
-    addresses. Links with trailing punctuation (periods, commas, closing
-    parentheses) and leading punctuation (opening parentheses) are
-    recognized excluding the punctuation. Email addresses that include
-    header fields are not recognized (for example,
-    ``mailto:[email protected][email protected]``).
-
-    :param text: Original text containing URLs to link.
-    :param trim_url_limit: Shorten displayed URL values to this length.
-    :param target: Add the ``target`` attribute to links.
-    :param rel: Add the ``rel`` attribute to links.
-    :param extra_schemes: Recognize URLs that start with these schemes
-        in addition to the default behavior.
-
-    .. versionchanged:: 3.0
-        The ``extra_schemes`` parameter was added.
-
-    .. versionchanged:: 3.0
-        Generate ``https://`` links for URLs without a scheme.
-
-    .. versionchanged:: 3.0
-        The parsing rules were updated. Recognize email addresses with
-        or without the ``mailto:`` scheme. Validate IP addresses. Ignore
-        parentheses and brackets in more cases.
+        return "Ellipsis" 
+ 
+    cls = type(obj) 
+ 
+    if cls.__module__ == "builtins": 
+        return f"{cls.__name__} object" 
+
+    return f"{cls.__module__}.{cls.__name__} object" 
+
+ 
+def pformat(obj: t.Any) -> str: 
+    """Format an object using :func:`pprint.pformat`.""" 
+    from pprint import pformat  # type: ignore 
+ 
+    return pformat(obj) 
+ 
+
+_http_re = re.compile( 
+    r""" 
+    ^ 
+    ( 
+        (https?://|www\.)  # scheme or www 
+        (([\w%-]+\.)+)?  # subdomain 
+        ( 
+            [a-z]{2,63}  # basic tld 
+        | 
+            xn--[\w%]{2,59}  # idna tld 
+        ) 
+    | 
+        ([\w%-]{2,63}\.)+  # basic domain 
+        (com|net|int|edu|gov|org|info|mil)  # basic tld 
+    | 
+        (https?://)  # scheme 
+        ( 
+            (([\d]{1,3})(\.[\d]{1,3}){3})  # IPv4 
+        | 
+            (\[([\da-f]{0,4}:){2}([\da-f]{0,4}:?){1,6}])  # IPv6 
+        ) 
+    ) 
+    (?::[\d]{1,5})?  # port 
+    (?:[/?#]\S*)?  # path, query, and fragment 
+    $ 
+    """, 
+    re.IGNORECASE | re.VERBOSE, 
+) 
+_email_re = re.compile(r"^\S+@\w[\w.-]*\.\w+$") 
+
+
+def urlize( 
+    text: str, 
+    trim_url_limit: t.Optional[int] = None, 
+    rel: t.Optional[str] = None, 
+    target: t.Optional[str] = None, 
+    extra_schemes: t.Optional[t.Iterable[str]] = None, 
+) -> str: 
+    """Convert URLs in text into clickable links. 
+
+    This may not recognize links in some situations. Usually, a more 
+    comprehensive formatter, such as a Markdown library, is a better 
+    choice. 
+
+    Works on ``http://``, ``https://``, ``www.``, ``mailto:``, and email 
+    addresses. Links with trailing punctuation (periods, commas, closing 
+    parentheses) and leading punctuation (opening parentheses) are 
+    recognized excluding the punctuation. Email addresses that include 
+    header fields are not recognized (for example, 
+    ``mailto:[email protected][email protected]``). 
+ 
+    :param text: Original text containing URLs to link. 
+    :param trim_url_limit: Shorten displayed URL values to this length. 
+    :param target: Add the ``target`` attribute to links. 
+    :param rel: Add the ``rel`` attribute to links. 
+    :param extra_schemes: Recognize URLs that start with these schemes 
+        in addition to the default behavior. 
+ 
+    .. versionchanged:: 3.0 
+        The ``extra_schemes`` parameter was added. 
+ 
+    .. versionchanged:: 3.0 
+        Generate ``https://`` links for URLs without a scheme. 
+ 
+    .. versionchanged:: 3.0 
+        The parsing rules were updated. Recognize email addresses with 
+        or without the ``mailto:`` scheme. Validate IP addresses. Ignore 
+        parentheses and brackets in more cases. 
     """
-    if trim_url_limit is not None:
-
-        def trim_url(x: str) -> str:
-            if len(x) > trim_url_limit:  # type: ignore
-                return f"{x[:trim_url_limit]}..."
-
-            return x
-
-    else:
-
-        def trim_url(x: str) -> str:
-            return x
-
-    words = re.split(r"(\s+)", str(markupsafe.escape(text)))
-    rel_attr = f' rel="{markupsafe.escape(rel)}"' if rel else ""
-    target_attr = f' target="{markupsafe.escape(target)}"' if target else ""
-
+    if trim_url_limit is not None: 
+
+        def trim_url(x: str) -> str: 
+            if len(x) > trim_url_limit:  # type: ignore 
+                return f"{x[:trim_url_limit]}..." 
+ 
+            return x 
+ 
+    else: 
+ 
+        def trim_url(x: str) -> str: 
+            return x 
+ 
+    words = re.split(r"(\s+)", str(markupsafe.escape(text))) 
+    rel_attr = f' rel="{markupsafe.escape(rel)}"' if rel else "" 
+    target_attr = f' target="{markupsafe.escape(target)}"' if target else "" 
+ 
     for i, word in enumerate(words):
-        head, middle, tail = "", word, ""
-        match = re.match(r"^([(<]|&lt;)+", middle)
-
+        head, middle, tail = "", word, "" 
+        match = re.match(r"^([(<]|&lt;)+", middle) 
+ 
         if match:
-            head = match.group()
-            middle = middle[match.end() :]
-
-        # Unlike lead, which is anchored to the start of the string,
-        # need to check that the string ends with any of the characters
-        # before trying to match all of them, to avoid backtracking.
-        if middle.endswith((")", ">", ".", ",", "\n", "&gt;")):
-            match = re.search(r"([)>.,\n]|&gt;)+$", middle)
-
-            if match:
-                tail = match.group()
-                middle = middle[: match.start()]
-
-        # Prefer balancing parentheses in URLs instead of ignoring a
-        # trailing character.
-        for start_char, end_char in ("(", ")"), ("<", ">"), ("&lt;", "&gt;"):
-            start_count = middle.count(start_char)
-
-            if start_count <= middle.count(end_char):
-                # Balanced, or lighter on the left
-                continue
-
-            # Move as many as possible from the tail to balance
-            for _ in range(min(start_count, tail.count(end_char))):
-                end_index = tail.index(end_char) + len(end_char)
-                # Move anything in the tail before the end char too
-                middle += tail[:end_index]
-                tail = tail[end_index:]
-
-        if _http_re.match(middle):
-            if middle.startswith("https://") or middle.startswith("http://"):
-                middle = (
-                    f'<a href="{middle}"{rel_attr}{target_attr}>{trim_url(middle)}</a>'
-                )
-            else:
-                middle = (
-                    f'<a href="https://{middle}"{rel_attr}{target_attr}>'
-                    f"{trim_url(middle)}</a>"
-                )
-
-        elif middle.startswith("mailto:") and _email_re.match(middle[7:]):
-            middle = f'<a href="{middle}">{middle[7:]}</a>'
-
-        elif (
-            "@" in middle
-            and not middle.startswith("www.")
-            and ":" not in middle
-            and _email_re.match(middle)
-        ):
-            middle = f'<a href="mailto:{middle}">{middle}</a>'
-
-        elif extra_schemes is not None:
-            for scheme in extra_schemes:
-                if middle != scheme and middle.startswith(scheme):
-                    middle = f'<a href="{middle}"{rel_attr}{target_attr}>{middle}</a>'
-
-        words[i] = f"{head}{middle}{tail}"
-
-    return "".join(words)
-
-
-def generate_lorem_ipsum(
-    n: int = 5, html: bool = True, min: int = 20, max: int = 100
-) -> str:
+            head = match.group() 
+            middle = middle[match.end() :] 
+ 
+        # Unlike lead, which is anchored to the start of the string, 
+        # need to check that the string ends with any of the characters 
+        # before trying to match all of them, to avoid backtracking. 
+        if middle.endswith((")", ">", ".", ",", "\n", "&gt;")): 
+            match = re.search(r"([)>.,\n]|&gt;)+$", middle) 
+ 
+            if match: 
+                tail = match.group() 
+                middle = middle[: match.start()] 
+ 
+        # Prefer balancing parentheses in URLs instead of ignoring a 
+        # trailing character. 
+        for start_char, end_char in ("(", ")"), ("<", ">"), ("&lt;", "&gt;"): 
+            start_count = middle.count(start_char) 
+ 
+            if start_count <= middle.count(end_char): 
+                # Balanced, or lighter on the left 
+                continue 
+ 
+            # Move as many as possible from the tail to balance 
+            for _ in range(min(start_count, tail.count(end_char))): 
+                end_index = tail.index(end_char) + len(end_char) 
+                # Move anything in the tail before the end char too 
+                middle += tail[:end_index] 
+                tail = tail[end_index:] 
+ 
+        if _http_re.match(middle): 
+            if middle.startswith("https://") or middle.startswith("http://"): 
+                middle = ( 
+                    f'<a href="{middle}"{rel_attr}{target_attr}>{trim_url(middle)}</a>' 
+                ) 
+            else: 
+                middle = ( 
+                    f'<a href="https://{middle}"{rel_attr}{target_attr}>' 
+                    f"{trim_url(middle)}</a>" 
+                ) 
+ 
+        elif middle.startswith("mailto:") and _email_re.match(middle[7:]): 
+            middle = f'<a href="{middle}">{middle[7:]}</a>' 
+ 
+        elif ( 
+            "@" in middle 
+            and not middle.startswith("www.") 
+            and ":" not in middle 
+            and _email_re.match(middle) 
+        ): 
+            middle = f'<a href="mailto:{middle}">{middle}</a>' 
+ 
+        elif extra_schemes is not None: 
+            for scheme in extra_schemes: 
+                if middle != scheme and middle.startswith(scheme): 
+                    middle = f'<a href="{middle}"{rel_attr}{target_attr}>{middle}</a>' 
+ 
+        words[i] = f"{head}{middle}{tail}" 
+
+    return "".join(words) 
+
+ 
+def generate_lorem_ipsum( 
+    n: int = 5, html: bool = True, min: int = 20, max: int = 100 
+) -> str: 
     """Generate some lorem ipsum for the template."""
-    from .constants import LOREM_IPSUM_WORDS
-
+    from .constants import LOREM_IPSUM_WORDS 
+ 
     words = LOREM_IPSUM_WORDS.split()
     result = []
 
@@ -435,81 +435,81 @@ def generate_lorem_ipsum(
             if idx - randrange(3, 8) > last_comma:
                 last_comma = idx
                 last_fullstop += 2
-                word += ","
+                word += "," 
             # add end of sentences
             if idx - randrange(10, 20) > last_fullstop:
                 last_comma = last_fullstop = idx
-                word += "."
+                word += "." 
                 next_capitalized = True
             p.append(word)
 
         # ensure that the paragraph ends with a dot.
-        p_str = " ".join(p)
-
-        if p_str.endswith(","):
-            p_str = p_str[:-1] + "."
-        elif not p_str.endswith("."):
-            p_str += "."
-
-        result.append(p_str)
-
+        p_str = " ".join(p) 
+
+        if p_str.endswith(","): 
+            p_str = p_str[:-1] + "." 
+        elif not p_str.endswith("."): 
+            p_str += "." 
+ 
+        result.append(p_str) 
+ 
     if not html:
-        return "\n\n".join(result)
-    return markupsafe.Markup(
-        "\n".join(f"<p>{markupsafe.escape(x)}</p>" for x in result)
-    )
+        return "\n\n".join(result) 
+    return markupsafe.Markup( 
+        "\n".join(f"<p>{markupsafe.escape(x)}</p>" for x in result) 
+    ) 
 
 
-def url_quote(obj: t.Any, charset: str = "utf-8", for_qs: bool = False) -> str:
-    """Quote a string for use in a URL using the given charset.
+def url_quote(obj: t.Any, charset: str = "utf-8", for_qs: bool = False) -> str: 
+    """Quote a string for use in a URL using the given charset. 
 
-    :param obj: String or bytes to quote. Other types are converted to
-        string then encoded to bytes using the given charset.
-    :param charset: Encode text to bytes using this charset.
-    :param for_qs: Quote "/" and use "+" for spaces.
+    :param obj: String or bytes to quote. Other types are converted to 
+        string then encoded to bytes using the given charset. 
+    :param charset: Encode text to bytes using this charset. 
+    :param for_qs: Quote "/" and use "+" for spaces. 
     """
-    if not isinstance(obj, bytes):
-        if not isinstance(obj, str):
-            obj = str(obj)
-
+    if not isinstance(obj, bytes): 
+        if not isinstance(obj, str): 
+            obj = str(obj) 
+ 
         obj = obj.encode(charset)
-
-    safe = b"" if for_qs else b"/"
-    rv = quote_from_bytes(obj, safe)
-
+ 
+    safe = b"" if for_qs else b"/" 
+    rv = quote_from_bytes(obj, safe) 
+ 
     if for_qs:
-        rv = rv.replace("%20", "+")
-
+        rv = rv.replace("%20", "+") 
+ 
     return rv
 
 
-def unicode_urlencode(obj: t.Any, charset: str = "utf-8", for_qs: bool = False) -> str:
-    import warnings
-
-    warnings.warn(
-        "'unicode_urlencode' has been renamed to 'url_quote'. The old"
-        " name will be removed in Jinja 3.1.",
-        DeprecationWarning,
-        stacklevel=2,
-    )
-    return url_quote(obj, charset=charset, for_qs=for_qs)
-
-
[email protected]
-class LRUCache:
+def unicode_urlencode(obj: t.Any, charset: str = "utf-8", for_qs: bool = False) -> str: 
+    import warnings 
+ 
+    warnings.warn( 
+        "'unicode_urlencode' has been renamed to 'url_quote'. The old" 
+        " name will be removed in Jinja 3.1.", 
+        DeprecationWarning, 
+        stacklevel=2, 
+    ) 
+    return url_quote(obj, charset=charset, for_qs=for_qs) 
+ 
+ 
[email protected] 
+class LRUCache: 
     """A simple LRU Cache implementation."""
 
     # this is fast for small capacities (something below 1000) but doesn't
     # scale.  But as long as it's only used as storage for templates this
     # won't do any harm.
 
-    def __init__(self, capacity: int) -> None:
+    def __init__(self, capacity: int) -> None: 
         self.capacity = capacity
-        self._mapping: t.Dict[t.Any, t.Any] = {}
-        self._queue: "te.Deque[t.Any]" = deque()
+        self._mapping: t.Dict[t.Any, t.Any] = {} 
+        self._queue: "te.Deque[t.Any]" = deque() 
         self._postinit()
 
-    def _postinit(self) -> None:
+    def _postinit(self) -> None: 
         # alias all queue methods for faster lookup
         self._popleft = self._queue.popleft
         self._pop = self._queue.pop
@@ -517,70 +517,70 @@ class LRUCache:
         self._wlock = Lock()
         self._append = self._queue.append
 
-    def __getstate__(self) -> t.Mapping[str, t.Any]:
+    def __getstate__(self) -> t.Mapping[str, t.Any]: 
         return {
-            "capacity": self.capacity,
-            "_mapping": self._mapping,
-            "_queue": self._queue,
+            "capacity": self.capacity, 
+            "_mapping": self._mapping, 
+            "_queue": self._queue, 
         }
 
-    def __setstate__(self, d: t.Mapping[str, t.Any]) -> None:
+    def __setstate__(self, d: t.Mapping[str, t.Any]) -> None: 
         self.__dict__.update(d)
         self._postinit()
 
-    def __getnewargs__(self) -> t.Tuple:
+    def __getnewargs__(self) -> t.Tuple: 
         return (self.capacity,)
 
-    def copy(self) -> "LRUCache":
+    def copy(self) -> "LRUCache": 
         """Return a shallow copy of the instance."""
         rv = self.__class__(self.capacity)
         rv._mapping.update(self._mapping)
-        rv._queue.extend(self._queue)
+        rv._queue.extend(self._queue) 
         return rv
 
-    def get(self, key: t.Any, default: t.Any = None) -> t.Any:
+    def get(self, key: t.Any, default: t.Any = None) -> t.Any: 
         """Return an item from the cache dict or `default`"""
         try:
             return self[key]
         except KeyError:
             return default
 
-    def setdefault(self, key: t.Any, default: t.Any = None) -> t.Any:
+    def setdefault(self, key: t.Any, default: t.Any = None) -> t.Any: 
         """Set `default` if the key is not in the cache otherwise
         leave unchanged. Return the value of this key.
         """
         try:
-            return self[key]
-        except KeyError:
-            self[key] = default
-            return default
+            return self[key] 
+        except KeyError: 
+            self[key] = default 
+            return default 
 
-    def clear(self) -> None:
+    def clear(self) -> None: 
         """Clear the cache."""
-        with self._wlock:
+        with self._wlock: 
             self._mapping.clear()
             self._queue.clear()
 
-    def __contains__(self, key: t.Any) -> bool:
+    def __contains__(self, key: t.Any) -> bool: 
         """Check if a key exists in this cache."""
         return key in self._mapping
 
-    def __len__(self) -> int:
+    def __len__(self) -> int: 
         """Return the current size of the cache."""
         return len(self._mapping)
 
-    def __repr__(self) -> str:
-        return f"<{type(self).__name__} {self._mapping!r}>"
+    def __repr__(self) -> str: 
+        return f"<{type(self).__name__} {self._mapping!r}>" 
 
-    def __getitem__(self, key: t.Any) -> t.Any:
+    def __getitem__(self, key: t.Any) -> t.Any: 
         """Get an item from the cache. Moves the item up so that it has the
         highest priority then.
 
         Raise a `KeyError` if it does not exist.
         """
-        with self._wlock:
+        with self._wlock: 
             rv = self._mapping[key]
-
+ 
             if self._queue[-1] != key:
                 try:
                     self._remove(key)
@@ -589,55 +589,55 @@ class LRUCache:
                     # when we read, ignore the ValueError that we would
                     # get otherwise.
                     pass
-
+ 
                 self._append(key)
-
+ 
             return rv
 
-    def __setitem__(self, key: t.Any, value: t.Any) -> None:
+    def __setitem__(self, key: t.Any, value: t.Any) -> None: 
         """Sets the value for an item. Moves the item up so that it
         has the highest priority then.
         """
-        with self._wlock:
+        with self._wlock: 
             if key in self._mapping:
                 self._remove(key)
             elif len(self._mapping) == self.capacity:
                 del self._mapping[self._popleft()]
-
+ 
             self._append(key)
             self._mapping[key] = value
 
-    def __delitem__(self, key: t.Any) -> None:
+    def __delitem__(self, key: t.Any) -> None: 
         """Remove an item from the cache dict.
         Raise a `KeyError` if it does not exist.
         """
-        with self._wlock:
+        with self._wlock: 
             del self._mapping[key]
-
+ 
             try:
                 self._remove(key)
             except ValueError:
                 pass
 
-    def items(self) -> t.Iterable[t.Tuple[t.Any, t.Any]]:
+    def items(self) -> t.Iterable[t.Tuple[t.Any, t.Any]]: 
         """Return a list of items."""
         result = [(key, self._mapping[key]) for key in list(self._queue)]
         result.reverse()
         return result
 
-    def values(self) -> t.Iterable[t.Any]:
+    def values(self) -> t.Iterable[t.Any]: 
         """Return a list of all values."""
         return [x[1] for x in self.items()]
 
-    def keys(self) -> t.Iterable[t.Any]:
+    def keys(self) -> t.Iterable[t.Any]: 
         """Return a list of all keys ordered by most recent usage."""
         return list(self)
 
-    def __iter__(self) -> t.Iterator[t.Any]:
+    def __iter__(self) -> t.Iterator[t.Any]: 
         return reversed(tuple(self._queue))
 
-    def __reversed__(self) -> t.Iterator[t.Any]:
-        """Iterate over the keys in the cache dict, oldest items
+    def __reversed__(self) -> t.Iterator[t.Any]: 
+        """Iterate over the keys in the cache dict, oldest items 
         coming first.
         """
         return iter(tuple(self._queue))
@@ -645,12 +645,12 @@ class LRUCache:
     __copy__ = copy
 
 
-def select_autoescape(
-    enabled_extensions: t.Collection[str] = ("html", "htm", "xml"),
-    disabled_extensions: t.Collection[str] = (),
-    default_for_string: bool = True,
-    default: bool = False,
-) -> t.Callable[[t.Optional[str]], bool]:
+def select_autoescape( 
+    enabled_extensions: t.Collection[str] = ("html", "htm", "xml"), 
+    disabled_extensions: t.Collection[str] = (), 
+    default_for_string: bool = True, 
+    default: bool = False, 
+) -> t.Callable[[t.Optional[str]], bool]: 
     """Intelligently sets the initial value of autoescaping based on the
     filename of the template.  This is the recommended way to configure
     autoescaping if you do not want to write a custom function yourself.
@@ -685,10 +685,10 @@ def select_autoescape(
 
     .. versionadded:: 2.9
     """
-    enabled_patterns = tuple(f".{x.lstrip('.').lower()}" for x in enabled_extensions)
-    disabled_patterns = tuple(f".{x.lstrip('.').lower()}" for x in disabled_extensions)
-
-    def autoescape(template_name: t.Optional[str]) -> bool:
+    enabled_patterns = tuple(f".{x.lstrip('.').lower()}" for x in enabled_extensions) 
+    disabled_patterns = tuple(f".{x.lstrip('.').lower()}" for x in disabled_extensions) 
+ 
+    def autoescape(template_name: t.Optional[str]) -> bool: 
         if template_name is None:
             return default_for_string
         template_name = template_name.lower()
@@ -697,97 +697,97 @@ def select_autoescape(
         if template_name.endswith(disabled_patterns):
             return False
         return default
-
+ 
     return autoescape
 
 
-def htmlsafe_json_dumps(
-    obj: t.Any, dumps: t.Optional[t.Callable[..., str]] = None, **kwargs: t.Any
-) -> markupsafe.Markup:
-    """Serialize an object to a string of JSON with :func:`json.dumps`,
-    then replace HTML-unsafe characters with Unicode escapes and mark
-    the result safe with :class:`~markupsafe.Markup`.
-
-    This is available in templates as the ``|tojson`` filter.
-
-    The following characters are escaped: ``<``, ``>``, ``&``, ``'``.
-
-    The returned string is safe to render in HTML documents and
-    ``<script>`` tags. The exception is in HTML attributes that are
-    double quoted; either use single quotes or the ``|forceescape``
-    filter.
-
-    :param obj: The object to serialize to JSON.
-    :param dumps: The ``dumps`` function to use. Defaults to
-        ``env.policies["json.dumps_function"]``, which defaults to
-        :func:`json.dumps`.
-    :param kwargs: Extra arguments to pass to ``dumps``. Merged onto
-        ``env.policies["json.dumps_kwargs"]``.
-
-    .. versionchanged:: 3.0
-        The ``dumper`` parameter is renamed to ``dumps``.
-
-    .. versionadded:: 2.9
-    """
-    if dumps is None:
-        dumps = json.dumps
-
-    return markupsafe.Markup(
-        dumps(obj, **kwargs)
-        .replace("<", "\\u003c")
-        .replace(">", "\\u003e")
-        .replace("&", "\\u0026")
-        .replace("'", "\\u0027")
-    )
-
-
-class Cycler:
-    """Cycle through values by yield them one at a time, then restarting
-    once the end is reached. Available as ``cycler`` in templates.
-
-    Similar to ``loop.cycle``, but can be used outside loops or across
-    multiple loops. For example, render a list of folders and files in a
-    list, alternating giving them "odd" and "even" classes.
-
-    .. code-block:: html+jinja
-
-        {% set row_class = cycler("odd", "even") %}
-        <ul class="browser">
-        {% for folder in folders %}
-          <li class="folder {{ row_class.next() }}">{{ folder }}
-        {% endfor %}
-        {% for file in files %}
-          <li class="file {{ row_class.next() }}">{{ file }}
-        {% endfor %}
-        </ul>
-
-    :param items: Each positional argument will be yielded in the order
-        given for each cycle.
-
-    .. versionadded:: 2.1
+def htmlsafe_json_dumps( 
+    obj: t.Any, dumps: t.Optional[t.Callable[..., str]] = None, **kwargs: t.Any 
+) -> markupsafe.Markup: 
+    """Serialize an object to a string of JSON with :func:`json.dumps`, 
+    then replace HTML-unsafe characters with Unicode escapes and mark 
+    the result safe with :class:`~markupsafe.Markup`. 
+
+    This is available in templates as the ``|tojson`` filter. 
+
+    The following characters are escaped: ``<``, ``>``, ``&``, ``'``. 
+
+    The returned string is safe to render in HTML documents and 
+    ``<script>`` tags. The exception is in HTML attributes that are 
+    double quoted; either use single quotes or the ``|forceescape`` 
+    filter. 
+ 
+    :param obj: The object to serialize to JSON. 
+    :param dumps: The ``dumps`` function to use. Defaults to 
+        ``env.policies["json.dumps_function"]``, which defaults to 
+        :func:`json.dumps`. 
+    :param kwargs: Extra arguments to pass to ``dumps``. Merged onto 
+        ``env.policies["json.dumps_kwargs"]``. 
+ 
+    .. versionchanged:: 3.0 
+        The ``dumper`` parameter is renamed to ``dumps``. 
+ 
+    .. versionadded:: 2.9 
     """
-
-    def __init__(self, *items: t.Any) -> None:
+    if dumps is None: 
+        dumps = json.dumps 
+ 
+    return markupsafe.Markup( 
+        dumps(obj, **kwargs) 
+        .replace("<", "\\u003c") 
+        .replace(">", "\\u003e") 
+        .replace("&", "\\u0026") 
+        .replace("'", "\\u0027") 
+    ) 
+
+
+class Cycler: 
+    """Cycle through values by yield them one at a time, then restarting 
+    once the end is reached. Available as ``cycler`` in templates. 
+
+    Similar to ``loop.cycle``, but can be used outside loops or across 
+    multiple loops. For example, render a list of folders and files in a 
+    list, alternating giving them "odd" and "even" classes. 
+ 
+    .. code-block:: html+jinja 
+ 
+        {% set row_class = cycler("odd", "even") %} 
+        <ul class="browser"> 
+        {% for folder in folders %} 
+          <li class="folder {{ row_class.next() }}">{{ folder }} 
+        {% endfor %} 
+        {% for file in files %} 
+          <li class="file {{ row_class.next() }}">{{ file }} 
+        {% endfor %} 
+        </ul> 
+ 
+    :param items: Each positional argument will be yielded in the order 
+        given for each cycle. 
+ 
+    .. versionadded:: 2.1 
+    """ 
+ 
+    def __init__(self, *items: t.Any) -> None: 
         if not items:
-            raise RuntimeError("at least one item has to be provided")
+            raise RuntimeError("at least one item has to be provided") 
         self.items = items
-        self.pos = 0
+        self.pos = 0 
 
-    def reset(self) -> None:
-        """Resets the current item to the first item."""
+    def reset(self) -> None: 
+        """Resets the current item to the first item.""" 
         self.pos = 0
 
     @property
-    def current(self) -> t.Any:
-        """Return the current item. Equivalent to the item that will be
-        returned next time :meth:`next` is called.
-        """
+    def current(self) -> t.Any: 
+        """Return the current item. Equivalent to the item that will be 
+        returned next time :meth:`next` is called. 
+        """ 
         return self.items[self.pos]
 
-    def next(self) -> t.Any:
-        """Return the current item, then advance :attr:`current` to the
-        next item.
-        """
+    def next(self) -> t.Any: 
+        """Return the current item, then advance :attr:`current` to the 
+        next item. 
+        """ 
         rv = self.current
         self.pos = (self.pos + 1) % len(self.items)
         return rv
@@ -795,60 +795,60 @@ class Cycler:
     __next__ = next
 
 
-class Joiner:
+class Joiner: 
     """A joining helper for templates."""
 
-    def __init__(self, sep: str = ", ") -> None:
+    def __init__(self, sep: str = ", ") -> None: 
         self.sep = sep
         self.used = False
 
-    def __call__(self) -> str:
+    def __call__(self) -> str: 
         if not self.used:
             self.used = True
-            return ""
+            return "" 
         return self.sep
 
 
-class Namespace:
+class Namespace: 
     """A namespace object that can hold arbitrary attributes.  It may be
-    initialized from a dictionary or with keyword arguments."""
+    initialized from a dictionary or with keyword arguments.""" 
 
-    def __init__(*args: t.Any, **kwargs: t.Any) -> None:  # noqa: B902
+    def __init__(*args: t.Any, **kwargs: t.Any) -> None:  # noqa: B902 
         self, args = args[0], args[1:]
         self.__attrs = dict(*args, **kwargs)
 
-    def __getattribute__(self, name: str) -> t.Any:
-        # __class__ is needed for the awaitable check in async mode
-        if name in {"_Namespace__attrs", "__class__"}:
+    def __getattribute__(self, name: str) -> t.Any: 
+        # __class__ is needed for the awaitable check in async mode 
+        if name in {"_Namespace__attrs", "__class__"}: 
             return object.__getattribute__(self, name)
         try:
             return self.__attrs[name]
         except KeyError:
-            raise AttributeError(name) from None
+            raise AttributeError(name) from None 
 
-    def __setitem__(self, name: str, value: t.Any) -> None:
+    def __setitem__(self, name: str, value: t.Any) -> None: 
         self.__attrs[name] = value
 
-    def __repr__(self) -> str:
-        return f"<Namespace {self.__attrs!r}>"
-
-
-class Markup(markupsafe.Markup):
-    def __new__(cls, base="", encoding=None, errors="strict"):  # type: ignore
-        warnings.warn(
-            "'jinja2.Markup' is deprecated and will be removed in Jinja"
-            " 3.1. Import 'markupsafe.Markup' instead.",
-            DeprecationWarning,
-            stacklevel=2,
-        )
-        return super().__new__(cls, base, encoding, errors)
-
-
-def escape(s: t.Any) -> str:
-    warnings.warn(
-        "'jinja2.escape' is deprecated and will be removed in Jinja"
-        " 3.1. Import 'markupsafe.escape' instead.",
-        DeprecationWarning,
-        stacklevel=2,
-    )
-    return markupsafe.escape(s)
+    def __repr__(self) -> str: 
+        return f"<Namespace {self.__attrs!r}>" 
+
+
+class Markup(markupsafe.Markup): 
+    def __new__(cls, base="", encoding=None, errors="strict"):  # type: ignore 
+        warnings.warn( 
+            "'jinja2.Markup' is deprecated and will be removed in Jinja" 
+            " 3.1. Import 'markupsafe.Markup' instead.", 
+            DeprecationWarning, 
+            stacklevel=2, 
+        ) 
+        return super().__new__(cls, base, encoding, errors) 
+
+
+def escape(s: t.Any) -> str: 
+    warnings.warn( 
+        "'jinja2.escape' is deprecated and will be removed in Jinja" 
+        " 3.1. Import 'markupsafe.escape' instead.", 
+        DeprecationWarning, 
+        stacklevel=2, 
+    ) 
+    return markupsafe.escape(s)