Функция sub в regex может принимать функцию в качестве аргумента repl.
📄 Из документации:
If repl is a function, it is called for every non-overlapping occurrence of pattern. The function takes a single match object argument, and returns the replacement string.
То есть для каждого совпадения будет вызвана функция для вычисления замены вместо замены на одну и ту же строку для всех совпадений.
Иными словами, для замены разных совпадений на разные строки не потребуется запускать re.sub() много раз для каждой строки замены. Достаточно определить функцию, которая вернёт строку для каждого из совпадений.
Описание слишком запутанное🤔, давайте лучше рассмотрим на простом примере:
Создаем карту замены. То есть какие строки на какие требуется менять.
remap = {
'раз': '1',
'два': '2',
'три': '3',
'четыре': '4',
'пять': '5',
}
Пишем функцию поиска строки для замены. Единственным аргументом будет объект re.Match.
Используя данные этого объекта мы вычисляем замену on-the-fly!
def get_str(match: re.Match):
word = match.group(1)
return remap.get(word.lower()) or word
Пример текста.
text = '''Раз Два Три Четыре Пять
Вместе будем мы считать
Пять Четыре Три Два Раз
Мы считать научим вас
'''
Теперь запускаем re.sub и вместо строки замены (repl) подаём имя функции.
(Данный паттерн ищет отдельные слова в тексте)
>>> print(re.sub(r'(\w+)', get_str, text))
1 2 3 4 5
Вместе будем мы считать
5 4 3 2 1
Мы считать научим вас
Думаю, достаточно наглядно 🤓
#libs#regex
Operation Paperclip was a secret U.S. program after World War II. It brought over 1,500 German and Austrian scientists to the United States. Many had been members of the Nazi Party. They worked on military, aeronautics, and space research. Their Nazi pasts were ignored so the U.S. could use their expertise and keep it from the Soviet Union.
🇺🇸🧑🔬🚀
[Read more]
@googlefactss
#OperationPaperclip#HistoryFacts#ColdWar#Science#NASA
GERMANY IS A NAIVE PAWN OF THE USA WITH SEEMINGLY NO POWER TO SAVE ITSELF.
The #USA has failed against #Russia:
• It has missed its military target and this failure is damaging America’s prestige as the greatest military power.
• The #sanctions war against Russia are a complete failure. The West is weakened while Russia strengthens. The #IMF figures speak volumes: Germany doesn’t even make the list.
“The primary interest of the United States through the last century-that is, #WW1, #WW2, and the #ColdWar, has been the relationship between Germany and Russia.
If united, those two would be the only power that could threaten us-and so we have to make sure that doesn’t happen.”
George Friedman
The aim is therefore to prevent Germany from teaming up with Russia.
If it is not possible to weaken Russia as a major opponent, there is the option of preventing the alliance by turning #Germany and Russia into enemies and/or destroying Germany (for the third time after 1918 and 1945)
Operation Osoaviakhim was a secret Soviet program after World War II. Over 2,500 German scientists, engineers, and technicians and their families were taken from the Soviet zone of Germany to the USSR.
They worked on Soviet military, weapons, and rocket technology. The goal was to use German expertise to strengthen the USSR and keep it from falling into Western hands.
Basically the Soviet version of operation Paperclip📎
🇷🇺🔬🚀
[Read more]
@googlefactss
#OperationOsoaviakhim#ColdWar#HistoryFacts#WWII#SovietUnion#Science#operationpaperclip
Project MK‑ULTRA was a secret CIA program during the Cold War. It ran from 1953 to 1964. The CIA tested mind control using LSD, hypnosis, electroshock, and sensory deprivation. Some experiments gave drugs to people without their knowledge, isolated subjects for long periods, or exposed them to extreme stress. Under Dulles, the CIA opened secret prisons in West Germany and Japan, advised by Walter Schreiber, former Surgeon General of the Nazi army. Schreiber had avoided imprisonment after World War II and was brought to the West by U.S. intelligence, likely as part of programs like Operation Paperclip. Most records of MK‑ULTRA were destroyed in 1973, but investigations later revealed the program.
🧠🔬🇺🇸
[Read more]
@googlefactss
#MKULTRA#CIA#HistoryFacts#Science#ColdWar#MindControl#notAtheory