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
#HOOK/USDT analysis :
#HOOK has successfully broken out from the trendline and subsequently retested it, indicating a shift in direction towards the upside.
This suggests that bullish momentum is likely to persist, with potential for testing higher price levels in the near future.
TF : 4h
Entry : $0.2850
Target : $0.3240
SL : $0.2716
#HOOK/USDT analysis :
#HOOK is in a downtrend, trading below the 200 EMA. The price is currently experiencing a pullback and is expected to test the resistance zone before continuing its bearish trend. The price is expected to test the resistance zone while continuing its bearish momentum to test previous lows.
TF : 4H
Entry : $0.4173
Target : $0.3485
SL : $0.4477
#HOOK/USDT analysis :
#HOOK is in a downtrend, expected to keep up its bearish momentum. The price has already broken out of the trendline, triggering the entry. Target the previous swing low as a potential target level.
TF : 15min
Entry : $0.3558
Target : $0.3208
SL : $0.3746
#HOOK/USDT analysis :
#HOOK has broken out of the trendline with impulsive bullish momentum. It is expected to test the previous swing high. Aim for it as a potential target level, as bullish momentum is expected to continue on LTF.
TF : 5min
Entry : $0.3475
Target : $0.3696
SL : $0.3332
#HOOK/USDT analysis -
#HOOK shows a rejection from the resistance zone after establishing a lower low. There is an anticipation of further decline from this point with a potential retest of the previous low. For a short entry, wait for a pullback to the resistance zone.
TF : 2h
Entry : $0.4959
Target : $0.4003
SL : $0.5155
#HOOK/USDT analysis -
#HOOK is currently in a downtrend, hitting new lows and trading below the 200 EMA. The price is currently testing the resistance zone after an impulsive move. It is anticipated that the price will reject from there and continue to test new lows shortly. Enter when the price begins declining from the resistance zone. The previous swing low will be the target level.
TF : 1h
Entry : $0.5767
Target : $0.5316
SL : $0.6036
#HOOK/USDT analysis -
#HOOK is in a downtrend, trading below the 200 EMA. The price is currently going through a pullback and has retraced to previous support levels near the 200 EMA. Currently, the price is encountering resistance near the 200 EMA and has already broken the trendline, indicating an increase in bearish pressure on the price. To confirm entry, wait for the price to break below the $0.5997 level to go short, with previous swing lows as potential target levels.
TF : 30min
Entry : $0.5997
Target : $0.5446
SL : $0.6337