如何通过包含边角案例将文本拆分成句子

Question

我正在使用这个 link 将文本拆分成句子：

How can I split a text into sentences?.

代码如下：

%%time
import re
alphabets= "([A-Za-z])"
prefixes = "(Mr|St|Mrs|Ms|Dr)[.]"
suffixes = "(Inc|Ltd|Jr|Sr|Co)"
starters = "(Mr|Mrs|Ms|Dr|He\s|She\s|It\s|They\s|Their\s|Our\s|We\s|But\s|However\s|That\s|This\s|Wherever)"
acronyms = "([A-Z][.][A-Z][.](?:[A-Z][.])?)"
websites = "[.](com|net|org|io|gov|ly)"
digits = "([0-9])"


def split_into_sentences(text):
    text = " " + text + "  "
    text = text.replace("\n"," ")
    text = re.sub(prefixes,"\1<prd>",text)
    text = re.sub(websites,"<prd>\1",text)
    text = re.sub(digits + "[.]" + digits,"\1<prd>\2",text)
    
    if "Ph.D" in text: text = text.replace("Ph.D.","Ph<prd>D<prd>")
        
    text = re.sub("\s" + alphabets + "[.] "," \1<prd> ",text)
    text = re.sub(acronyms+" "+starters,"\1<stop> \2",text)
    text = re.sub(alphabets + "[.]" + alphabets + "[.]" + alphabets + "[.]","\1<prd>\2<prd>\3<prd>",text)
    text = re.sub(alphabets + "[.]" + alphabets + "[.]","\1<prd>\2<prd>",text)
    text = re.sub(" "+suffixes+"[.] "+starters," \1<stop> \2",text)
    text = re.sub(" "+suffixes+"[.]"," \1<prd>",text)
    text = re.sub(" " + alphabets + "[.]"," \1<prd>",text)
    if "”" in text: text = text.replace(".”","”.")
    if "\"" in text: text = text.replace(".\"","\".")
    if "!" in text: text = text.replace("!\"","\"!")
    if "?" in text: text = text.replace("?\"","\"?")
    text = text.replace(".",".<stop>")
    text = text.replace("?","?<stop>")
    text = text.replace("!","!<stop>")
    text = text.replace("<prd>",".")
    sentences = text.split("<stop>")
    sentences = sentences[:-1]
    sentences = [s.strip() for s in sentences]
    
    if len(sentences)==0:
        k=[]
        return [text]
    else:
        return sentences

虽然上面的代码适用于大多数极端情况。但如果在少数情况下失败，例如：

text="Thank you for contacting back. Request you to please help us with the transaction ID for $<***>.92 ? - Charlie."

它将 $<***>.92 分解为 $<***>. 和 92。我怎样才能将它包含在上面的代码中？

Answer 1

如果你想扩展你的代码，你可以在浮点值解析中添加美元符号（$）：

text = re.sub("$" + digits + "[.]" + digits,"\1<prd>\2",text)

如何通过包含边角案例将文本拆分成句子

How to split text into sentences by including corner cases

python

text

nlp

python-3.x

python-re