Regex to match capital/special/unicode/vietnamese characters

Question

I'm facing an issue. Indeed, I work with vietnamese texts and I want to find every word containing uppercase(s) (capital letter). When I use the 're' module, my function (temp) does not catch word like "Đà". The other way (temp2) is to check each character at a time, it works but it is slow since I have to split the sentences into words.

Hence I would like to know if there is a way of the "re" module to catch all the special capital letter.

I have 2 ways :

def temp(sentence):
    return re.findall(r'[a-z]*[A-Z]+[a-z]*', sentence)


lis=word_tokenize(sentence)
def temp2(lis):
    proper_noun=[]
    for word in lis:
        for letter in word:
            if letter.isupper():
                proper_noun.append(word)
                break
    return proper_noun

Input:

'nous avons 2 Đồng et 3 Euro'

Expected output :

['Đồng','Euro']

Thank you!

Answer 1

You may use this regex:

\b\S*[AĂÂÁẮẤÀẰẦẢẲẨÃẴẪẠẶẬĐEÊÉẾÈỀẺỂẼỄẸỆIÍÌỈĨỊOÔƠÓỐỚÒỒỜỎỔỞÕỖỠỌỘỢUƯÚỨÙỪỦỬŨỮỤỰYÝỲỶỸỴAĂÂÁẮẤÀẰẦẢẲẨÃẴẪẠẶẬĐEÊÉẾÈỀẺỂẼỄẸỆIÍÌỈĨỊOÔƠÓỐỚÒỒỜỎỔỞÕỖỠỌỘỢUƯÚỨÙỪỦỬŨỮỤỰYÝỲỶỸỴAĂÂÁẮẤÀẰẦẢẲẨÃẴẪẠẶẬĐEÊÉẾÈỀẺỂẼỄẸỆIÍÌỈĨỊOÔƠÓỐỚÒỒỜỎỔỞÕỖỠỌỘỢUƯÚỨÙỪỦỬŨỮỤỰYÝỲỶỸỴAĂÂÁẮẤÀẰẦẢẲẨÃẴẪẠẶẬĐEÊÉẾÈỀẺỂẼỄẸỆIÍÌỈĨỊOÔƠÓỐỚÒỒỜỎỔỞÕỖỠỌỘỢUƯÚỨÙỪỦỬŨỮỤỰYÝỲỶỸỴAĂÂÁẮẤÀẰẦẢẲẨÃẴẪẠẶẬĐEÊÉẾÈỀẺỂẼỄẸỆIÍÌỈĨỊOÔƠÓỐỚÒỒỜỎỔỞÕỖỠỌỘỢUƯÚỨÙỪỦỬŨỮỤỰYÝỲỶỸỴAĂÂÁẮẤÀẰẦẢẲẨÃẴẪẠẶẬĐEÊÉẾÈỀẺỂẼỄẸỆIÍÌỈĨỊOÔƠÓỐỚÒỒỜỎỔỞÕỖỠỌỘỢUƯÚỨÙỪỦỬŨỮỤỰYÝỲỶỸỴA-Z]+\S*\b

Regex Demo