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/lib/python3/dist-packages/mdurl/_encode.py

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from __future__ import annotations

from collections.abc import Sequence
from string import ascii_letters, digits, hexdigits
from urllib.parse import quote as encode_uri_component

ASCII_LETTERS_AND_DIGITS = ascii_letters + digits

ENCODE_DEFAULT_CHARS = ";/?:@&=+$,-_.!~*'()#"
ENCODE_COMPONENT_CHARS = "-_.!~*'()"

encode_cache: dict[str, list[str]] = {}

# Create a lookup array where anything but characters in `chars` string
# and alphanumeric chars is percent-encoded.
def get_encode_cache(exclude: str) -> Sequence[str]:
    if exclude in encode_cache:
        return encode_cache[exclude]

cache: list[str] = []
    encode_cache[exclude] = cache

for i in range(128):
        ch = chr(i)

if ch in ASCII_LETTERS_AND_DIGITS:
            # always allow unencoded alphanumeric characters
            cache.append(ch)
        else:
            cache.append("%" + ("0" + hex(i)[2:].upper())[-2:])

for i in range(len(exclude)):
        cache[ord(exclude[i])] = exclude[i]

return cache

# Encode unsafe characters with percent-encoding, skipping already
# encoded sequences.
#
#  - string       - string to encode
#  - exclude      - list of characters to ignore (in addition to a-zA-Z0-9)
#  - keepEscaped  - don't encode '%' in a correct escape sequence (default: true)
def encode(
    string: str, exclude: str = ENCODE_DEFAULT_CHARS, *, keep_escaped: bool = True
) -> str:
    result = ""

cache = get_encode_cache(exclude)

l = len(string)  # noqa: E741
    i = 0
    while i < l:
        code = ord(string[i])

#                              %
        if keep_escaped and code == 0x25 and i + 2 < l:
            if all(c in hexdigits for c in string[i + 1 : i + 3]):
                result += string[i : i + 3]
                i += 2
                i += 1  # JS for loop statement3
                continue

if code < 128:
            result += cache[code]
            i += 1  # JS for loop statement3
            continue

if code >= 0xD800 and code <= 0xDFFF:
            if code >= 0xD800 and code <= 0xDBFF and i + 1 < l:
                next_code = ord(string[i + 1])
                if next_code >= 0xDC00 and next_code <= 0xDFFF:
                    result += encode_uri_component(string[i] + string[i + 1])
                    i += 1
                    i += 1  # JS for loop statement3
                    continue
            result += "%EF%BF%BD"
            i += 1  # JS for loop statement3
            continue

result += encode_uri_component(string[i])
        i += 1  # JS for loop statement3

return result

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Name	Size	Perms	Modified	Actions
__pycache__ DIR	-	drwxr-xr-x	2026-01-08 12:54:41	Edit Download recursive recursive
py.typed	26 B	lrw-r--r--	2022-10-17 20:23:30	Edit Download recursive recursive
_decode.py	2.93 KB	lrw-r--r--	2022-10-17 20:23:30	Edit Download recursive recursive
_encode.py	2.54 KB	lrw-r--r--	2022-10-17 20:23:30	Edit Download recursive recursive
_format.py	626 B	lrw-r--r--	2022-10-17 20:23:30	Edit Download recursive recursive
_parse.py	11.11 KB	lrw-r--r--	2022-10-17 20:23:30	Edit Download recursive recursive
_url.py	284 B	lrw-r--r--	2022-10-17 20:23:30	Edit Download recursive recursive
__init__.py	547 B	lrw-r--r--	2022-10-17 20:23:30	Edit Download recursive recursive

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