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
#BLZ/USDT analysis :
#BLZ is in an uptrend, making Higher Highs (HHs) and Higher Lows (HLs) above the 200ema. The price broke the trendline after bouncing from a support zone. It's likely to keep up its bullish momentum and aim for previous highs.
TF : 15min
Entry : $0.1547
Target : $0.1600
SL : $0.1507
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It seems to be in the accumulation phase lately.
If the candle closes below the support, we can say Stop-Loss. Then there will be a downside opportunity 📉
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#BLZ follows a descending channel pattern and seems to be gearing up for a bullish breakout. The next key target to watch after the breakout is the internal minor resistance at $0.1550 .
If #BLZ holds steady at $0.1110, we could be on the brink of a significant bullish rally, much like those explosive moves we've seen before. A breakout above the crucial resistance at $0.150 could pave the way for a run toward even higher resistance zones
-caution is essential. If momentum weakens at this critical demand zone, we might see a pullback to the lower demand area around $0.0800-
#BLZ is moving up in the bullish channel on Daily time frame, price has a good support on Green zone,we expect another pump from this area 🚀
❄️@signals_bitcoin_crypto❄️
❄️@Shadow_support0o❄️
#BLZ is moving up in a broadening channel,we expect it will pump again from the bottom of this pattern..⏳
❄️@signals_bitcoin_crypto❄️
❄️@Shadow_support0o❄️
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#BLZ/USDT (7 - 14)X
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💵Target 1=0.228✅
💵Target 2=0.221✅
💵Target 3=0.213✅
💵Target 4=0.2046✅
💵Target 5=0.189✅
💵Target 6=0.175✅
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#BLZ
On the coin there are signs of formation of ascending OF, liquidity removal from below, and reaction from the OB area, so let's try to open long, on removal of upper magnets
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