Ранее я делал серию постов про битовые операторы.
Вот вам ещё один наглядный пример как это используется в Python в модуле re.
Чтобы указать флаг для компилятора нам надо указать его после передаваемой строки. Например, добавляем флаг для игнорирования переноса строки.
pattern = re.compile(r"(\w+)+")
words = pattern.search(text, re.DOTALL)
А как указать несколько флагов? Ведь явно будут ситуации когда нам потребуется больше одного. Кто читал посты по битовые операторы уже понял как.
pattern.search(text, re.DOTALL | re.VERBOSE)
А теперь смотрим исходники, что находится в этих атрибутах?
Не удивительно, степени двойки. Почему? Потому что каждое следующее значение это сдвиг единицы влево.
>>> for n in [1, 2, 4, 8, 16, 32, 64, 128, 256]:
>>>
print(bin(n))
0b1
0b10
0b100
0b1000
0b10000
0b100000
0b1000000
0b10000000
0b100000000
Чтобы было понятней, давайте напишем тоже самое но иначе, добавим ведущие нули:
000000001
000000010
000000100
000001000
000010000
000100000
001000000
010000000
100000000
Не понятно что тут происходит? Читай три поста про битовые операторы начиная с этого ➡️https://t.me/pythonotes/45
В общем, это пример применения побитовых операций в самом Python.
Теперь вы знаете Python еще немного лучше)
#tricks#regex#libs
🔥 Israeli tanks close in on Palestinian hospital. Doctors & staff warned to leave, even if patients remain. Artillery assaults follow. Indonesian Hospital targeted, 12 killed. 21 out of 35 Gaza hospitals out of service. Premature babies evacuated due to contaminated water. Israel's occupation of al-Shifa. West Bank hospitals raided. Israel claims it targets Hamas, but evidence lacking. Real reason? Psychological warfare, says analyst. Israel wants Palestinians to feel unsafe. US's support enables Israel's actions. But global outrage may force a change. Stay tuned. #GazaUnderAttack
https://www.aljazeera.com/features/2023/11/20/why-does-israel-target-palestinian-hospitals-psyops-say-analysts
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🔴 Over 50 dead in Israeli strike on Al-Maghazi refugee camp in central Gaza. 🏢 Palestinians fleeing Israeli-controlled territories are residing in these refugee camps. 🚀 Hamas claims 60 Israeli captives killed in retaliatory strikes. ⚠️ Chances of survivors are slim due to ongoing bombardments. 💔 The conflict continues to escalate. #GazaUnderAttack
https://www.gazeta.ru/army/news/2023/11/05/21644179.shtml
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📢 Mr. Biden, look at the devastation caused by Israel in Gaza. Innocent lives lost, families destroyed. You turn a blind eye, offering support to Israel. Do Palestinian lives not matter? Can you justify this blood on your hands? History won't forget your complicity. #GazaUnderAttack
https://www.aljazeera.com/opinions/2023/11/4/a-letter-to-president-biden-from-a-grieving-palestinian
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Israeli immigrants are experts in killing children.
Os imigrantes israelenses são especialistas em matar crianças.
İsrailli göçmenler çocukları öldürme konusunda uzmandır.
#GazaUnderAttack
https://t.me/YediotNewsChat
🔴 BREAKING NEWS 🔴
Israeli bombardment of Nuseirat refugee camp in Gaza claims lives of 14 innocent people, including women and children. More casualties expected as rescue efforts continue. Despite ceasefire, Israel accuses Palestinians of violating agreement, escalating tensions. 110 hostages released, but 137 still held by Hamas. #GazaUnderAttack#HumanitarianCrisis
https://ria.ru/20231203/gaza-1913406714.html
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🔴Catastrophic situation at Indonesian Hospital in northern Gaza‼️ Israeli tanks surround the facility after artillery fire kills 12 Palestinians💔 700 people trapped inside, including medical staff and wounded😰 Hospital denies presence of armed militants🚫 International condemnation mounts🌍 UN reports collapse of services in northern Gaza hospitals🏥 Israel claims Hamas built infrastructure below hospitals for military use💣 Terrifying sounds of explosions and gunfire😨 Death toll rises as Israel's offensive continues🔥 Stay tuned for updates! #GazaUnderAttack#HumanitarianCrisis
https://www.aljazeera.com/news/2023/11/20/israeli-tanks-surround-gazas-indonesian-hospital-after-killing-12-people
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🔴 Gaza's smallest refugee camp pounded by Israeli airstrikes. Palestinians digging up bodies of loved ones under rubble. Over 90 killed, including children and displaced families. Entire residential blocks wiped out. Camp housing estimated 100,000 people. No warnings given. No aid, fuel, or excavators. Need ceasefire! Arab world, stand with us! #GazaUnderAttack#CeasefireNow
https://www.aljazeera.com/features/2023/12/28/piles-of-body-parts-gazas-maghazi-residents-find-families-in-pieces
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🚨 Alarming news from Gaza 🚨
Israeli attacks continue to wreak havoc:
- Al-Buraq School targeted, 25 martyrs confirmed
- Schools, mosques, and hospitals hit repeatedly
- Thousands displaced, seeking refuge in schools
- Death toll rises to 11,078 Palestinians, 1,400 Israelis
- Over 50% of housing units damaged
- UN: Northern Gaza is like a "hell on Earth"
Stay tuned for more updates. #GazaUnderAttack#PrayForGaza
https://www.aljazeera.com/news/2023/11/10/gaza-hospital-says-received-50-bodies-after-strikes-on-school
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🚨 Israeli airstrikes continue in Gaza 🚨
Jabalia refugee camp hit for the second day, dozens killed and wounded 😢
Rescuers scramble to find survivors and recover bodies 😭
Israel claims it targeted Hamas, but families wiped out 😡
International condemnation grows, EU calls for humanity ✊
#GazaUnderAttack#StopTheViolence
https://www.aljazeera.com/news/2023/11/1/israel-bombs-jabalia-refugee-camp-for-second-day-palestinian-officials-say
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🔴 Urgent: Gaza power blackout due to Israel's blockade prompts international condemnation. Hospitals risk becoming morgues. ICRC calls situation "abhorrent". Clean water access and healthcare at risk. HRW labels blockade a war crime, accuses Israel of collective punishment. Israel refuses aid until abducted Israelis are released. Humanitarian crisis unfolding. World urged to take action. #GazaUnderAttack#EndTheBlockade
https://www.aljazeera.com/news/2023/10/12/gaza-hospitals-risk-turning-into-morgues-rights-groups-call-for-action
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+18
Бүгүн Палестиналык кичинекей балдар өлтүрүлдү Израильдин учактык сокусунан кийин.
Палестинские дети убиты сегодня в результате авиаударов Израиля в секторе Газа.
Palestinian children killed by Israeli air strikes in Gaza today. #غزة#gazaunderattack#gaza#غزة_تحت_القصف
Mientras el mundo se moviliza por Palestina y tratar de desbloquear Gaza, EE.UU. aprovecha de atacar a Irán con impunidad.
Así negocia EE.UU.
Qué alivio saber que Donald Trump sigue comprometido con "la diplomacia"... a su manera. No hay mejor Acuerdo de Paz que advertirle a un país entero que será reducido a cenizas.
#iran
#gaza
#gazaunderattack
#breakthesiege
#usdiplomacy
#diplomacy