bstr.py

# (C) 2019-2020 lifegpc
# This file is part of bili.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published
# by the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
from re import search, I
from html import unescape
from regex import search as rsearch
from typing import Callable
from urllib.parse import (
    parse_qs,
    parse_qsl,
    urlsplit,
    urlunsplit,
    urlencode,
    SplitResult
)
from HTMLParser import NicoDescriptionParser
from os.path import split as splitfn


def f(i: str):
    s = i.replace('\r', '\\r')
    s = s.replace('\n', '\\n')
    s = s.replace('"', "'")
    return s


def g(i: str):
    s = str(i)
    re = rsearch(r'[^[:print:]\r\n]', s)
    while re is not None:
        s = s.replace(re.group(), '_')
        re = rsearch(r'[^[:print:]\r\n]', s)
    s = s.replace('#', '\\#')
    s = s.replace('\\', '\\\\')
    s = s.replace('=', '\\=')
    s = s.replace(';', '\\;')
    s = s.replace('\r', '')
    s = s.replace('\n', '\\\n')
    return s


def lg(i: str):
    s = str(i)
    re = rsearch(r'[^[:print:]]', s)
    if re is not None:
        s = s.replace(re.group(), '_')
        re = rsearch(r'[^[:print:]]', s)
    s = s.replace('[', '_')
    s = s.replace(']', '_')
    return s


def gettags(t: list, fun: Callable = None) -> str:
    "将tag列表转换为文字"
    if fun is None:
        def fun(s): return s  # noqa: E704
    f = True
    s = ""
    for i in t:
        if f:
            f = False
            s = fun(i)
        else:
            s = s + "," + fun(i)
    return s


def rhtml(s: str) -> str:
    "去HTML化"
    r = s.replace('\n', '')
    r = r.replace('<br>', '\n')
    r = r.replace('<br/>', '\n')
    r = r.replace('</p>', '\n')
    t = search(r'<[^>]+>', r, I)
    while t is not None:
        t = t.span()
        if t[0] == 0:
            r = r[t[1]:]
        elif t[1] == len(s):
            r = r[:t[0]]
        else:
            r = r[:t[0]] + r[t[1]:]
        t = search(r'<[^>]+>', r, I)
    r = unescape(r)
    return r


def getv(l: list) -> (list, list):  # noqa: E741
    """将合并在一起的画质id和画质描述分开
    返回值为id,画质描述"""
    q = []
    d = []
    for i in l:
        q.append(i['qn'])
        d.append(i['desc'])
    return q, d


def hasPar(s: str, k: str, r: str = None, flags: int = 0):
    t = s
    if s[0] == '?':
        t = s[1:]
    l = parse_qs(t)  # noqa: E741
    if r is None:
        return True if k in l else False
    else:
        if k in l:
            for v in l[k]:
                if rsearch(r, v, flags) is not None:
                    return True
        return False


def unescapeHTML(s: str) -> str:
    p = NicoDescriptionParser()
    p.feed(s)
    return p.data


def addNewParaToLink(link: str, key: str, value: str) -> str:
    r = urlsplit(link)
    l = parse_qsl(r.query)  # noqa: E741
    l.append((str(key), str(value)))
    r2 = SplitResult(r.scheme, r.netloc, r.path, urlencode(l), r.fragment)
    return urlunsplit(r2)


def changeFileNameForLink(link: str, name: str) -> str:
    r = urlsplit(link)
    t = splitfn(r.path)
    r2 = SplitResult(r.scheme, r.netloc, f"{t[0]}/{name}", r.query, r.fragment)
    return urlunsplit(r2)