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
🔥
🔥
🔥#OLIMPIADA
🟢ASOSIY OLIMPIADANING RESPUBLIKA BOSQICHIGA START BERILDI
✅Avval xabar berilganidek,24-martdan boshlab, Asosiy olimpiadaning Respublika bosqichiga start beriladi.
✈️Bugun belgilangan manzillarga ishtirokchilar yetib borishdi. Viloyatimizdan 57 nafar o‘quvchilarimiz mazkur olimpiadada ishtrok etishi kutilmoqda.
🌍🌍🌍🌍🌍🌍
Kanalni yaqinlaringiz bilan ulashing
❤https://t.me/toshkentv_xtb| 🌐Facebook|
🔎Veb-sayt | 🌐Instagram|▶️YouTube
👍@ToshvilmmtbgamurojaatBot
#olimpiada
🔴"Akademik Qori Niyoziy merosi" ilmiy-metodik markazi, Matematika instituti hamda Aniq va ijtimoiy fanlar universiteti hamkorligida maktab Matematika fani oʻqituvchilari uchun mukofot jamgʻarmasi 20 000 000 so'm boʻlgan Qori Niyoziy olimpiadasining 1-bosqichi (saralash) o'tkazildi.Unda 56 va undan yuqori ball to‘plagan barcha (jami 235 kishi) 2-bosqichda qatnashishi mumkin.
Natijalar bilan ushbu havola orqali tanishishingiz mumkin: bu yerda
2-bosqich 5 ta yozma ish (har biri 10 balldan) topshiriqlaridan iborat bo'lib, unda maksimal 50 ball to'plash mumkin.
Eslatma: 2-bosqich natijalarini hisoblashda 1-bosqichda olingan natijalar qo‘shilmaydi!
Olimpiadaning 2-bosqichi Toshkent shahrida 2-noyabr (yakshanba) kuni soat 09:30 da Aniq va ijtimoiy fanlar universitetida o‘tkaziladi. Qatnashuvchilar shaxsni tasdiqlovchi hujjat bilan kelishi talab qilinadi.
📍Aniq va ijtimoiy fanlar universitetining manzili:loc.aifu.uz
D'Angelo Russell actively supported his Lakers teammates. He was especially thrilled with Anthony Davis’s alley-oop dunk following LeBron's assist.
#Olimpiada
👁Subscribe to Main Event | Sport News
Do you remember that Chinese player who is 230 cm tall? He is now an assistant coach for the women's national team.
#Olimpiada
👁Subscribe to Main Event | Sport News
Jason Tatum and Tyrese Haliburton did not play in the first match against the Serbian national team.
Such different reactions! One thinks, "Why am I not playing?" Meanwhile, the other thinks, "I can't believe I'm here."
#Olimpiada
👁Subscribe to Main Event | Sport News
Any American athlete who wins a gold medal in Paris will receive a bonus of $37,500. That’s just enough for LeBron James to buy a couple of bottles of wine.
However, for Hong Kong, winning an Olympic gold medal holds much greater value—$768,000.
#Olimpiada
👁Subscribe to Main Event | Sport News
The first father-son duo in Olympic history. It can confidently be said that they have outpaced LeBron and Bronny. Bravo!
#Olimpiada
👁Subscribe to Main Event | Sport News
Griezmann is the top supporter of the French team at the Olympics. He's spending his vacation at the Games and has already attended rugby, gymnastics, swimming, fencing, and equestrian events.
#Olimpiada
👁Subscribe to Main Event | Sport News
At 229 centimeters tall, Yao Ming looks like a giant compared to the other coaches of the Chinese women's basketball team.
#Olimpiada
👁Subscribe to Main Event | Sport News
French swimmer Marchand won gold in the 400m individual medley, setting a new Olympic record and taking it from Michael Phelps.
#Olimpiada
👁Subscribe to Main Event | Sport News
The unexpected hero of the day at the Olympics: a man in bright swim trunks jumped into the water and retrieved the cap that had fallen off a swimmer from the previous race.
#Olimpiada
👁Subscribe to Main Event | Sport News
The captain of Japan's women's gymnastics team, Seko Miyata, might miss the Olympics because she smoked a week before the Games. The 19-year-old athlete faces exclusion from the team as smoking and purchasing tobacco are illegal in Japan until the age of 20.
#Olimpiada
👁Subscribe to Main Event | Sport News