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
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Venezuelan campesino movements have denounced the arrest of Lilibeth Rangel in Zulia and the detention of 28 rural producers in Barinas as part of a broader pattern of criminalization.
The Small Farmers Movement (MPA) is urging government institutions to intervene and address judicial delays and alleged landowner interference in security operations. Campesino families from La Rubiera and La Fortuna estates have been demanding land titles under the 2001 Land Law for years.
🔗 Read the full report here: https://venezuelanalysis.com/news/campesino-movements-demand-venezuelan-govt-step-in-to-protect-activists-from-criminalization-attacks/
#Peasants#Campesinos
On September 21, Venezuelan campesino leader Iraidez Andrade was killed by masked hitmen in Barinas state.
He had been a prominent voice in the Las Mercedes land struggle and was working with local communities to secure land for campesino families. Rural organizations have called for justice and an end to impunity for the ongoing violence against campesino leaders.
Full report here 👉🏼https://shorturl.at/dzgzG
#Peasants#Campesinos
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Rice producers across Venezuela are taking to the streets ahead of the upcoming harvest, warning that prices offered by agroindustrial firms could leave many farmers unable to cover production costs.
Campesino groups say large conglomerates are using their control over silos, imports, and distribution to push prices down, while limited access to credit keeps farmers dependent on company financing.
After talks with producers, Agriculture Minister Julio León Heredia announced a provisional price. But campesino organizations warn they were barely represented in negotiations.
Click here to read our full report 👉🏾https://venezuelanalysis.com/news/venezuela-rice-producers-denounce-agribusiness-pressure-demand-govt-support-for-fair-prices/
#Agriculture#Peasants#Campesinos
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Venezuelan rice producers have staged demonstrations in Barinas, Cojedes, Guárico and Portuguesa, demanding state action to secure fair prices for their crops.
According to producer representative Víctor Martínez, agribusiness firms are offering $0.32–0.38 per kilo ahead of harvest, compared to $0.50–0.55 last year. Producers have set a $0.70 per kilo target in negotiations, citing rising input costs and lack of credit access.
Growers also report financing agreements in which companies provide inputs and collect up to 60% of the crop as payment. Campesino organizations are considering a rally in Caracas. Government officials have not yet commented.
Read the full report here 👉🏾https://venezuelanalysis.com/news/venezuela-rice-producers-denounce-agribusiness-pressure-demand-govt-support-for-fair-prices/
#Agriculture#Peasants#Campesinos
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🔗 Read the full report here: https://shorturl.at/pwPmt
#Peasants#Campesinos#PrivateSector#Sugar
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🔗 Read the full VA column here: https://shorturl.at/EAU4t
#Coffee#Peasants#Campesinos#PopularPower#TalesofResistance