不替换换行符

Question

我有一个机器人给我带来了这样的html代码：

<div class="std">
  <p>CAR:
    <span>Onix</span>
  </p>
  <p>MODEL: LTZ</p>
  <p>
    <span>COLOR:
    <span>Black</span>
  </p>
  <p>ACESSORIES:
    <span>ABS</span>
  </p>
  <p>
    <span>DESCRIPTION:</span>
    <span>The Chevrolet Onix is a subcompact car launched by American automaker Chevrolet in Brazil at the 2012 São Paulo International Motor Show[1] to succeed some versions of Chevrolet Celta. Offered initially as a five-door hatchback, a four-door sedan was launched in 2013 and called the Chevrolet Prisma.[2] The Onix is currently only sold in some South American countries part of Mercosur, including Brazil, Argentina, Colombia, Paraguay and Uruguay.</span>
  </p>
  <p>TECHNICAL DETAIL:
    <span>The Onix is available in three trim levels (LS, LT and LTZ) with two 4-cylinder engines, the 1.0-litre producing 78 PS (57 kW; 77 bhp) (petrol)/ 80 PS (59 kW; 79 bhp) (ethanol) and 1.4-litre 98 PS (72 kW; 97 bhp) (petrol)/106 PS (78 kW; 105 bhp) (ethanol) offering automatic or five-speed manual transmission..</span>
  </p>
</div>

我应用了下面的代码来删除HTML标记：

cleanr    = re.compile('<.*?>')
cleantext = re.sub(cleanr,'\n', html_code).strip()

它回到了我的身边：

CAR: Onix


MODEL: LTZ


COLOR:
Black



ACESSORIES:
ABS



DESCRIPTION:


The Chevrolet Onix is a subcompact car launched by American automaker Chevrolet in Brazil at the 2012 São Paulo International Motor Show[1] to succeed some versions of Chevrolet Celta. Offered initially as a five-door hatchback, a four-door sedan was launched in 2013 and called the Chevrolet Prisma.[2] The Onix is currently only sold in some South American countries part of Mercosur, including Brazil, Argentina, Colombia, Paraguay and Uruguay.



TECHNICAL DETAIL:
The Onix is available in three trim levels (LS, LT and LTZ) with two 4-cylinder engines, the 1.0-litre producing 78 PS (57 kW; 77 bhp) (petrol)/ 80 PS (59 kW; 79 bhp) (ethanol) and 1.4-litre 98 PS (72 kW; 97 bhp) (petrol)/106 PS (78 kW; 105 bhp) (ethanol) offering automatic or five-speed manual transmission..

现在，我需要删除换行符，这样的内容如下：

CAR: Onix
MODEL: LTZ
COLOR: Black
ACESSORIES: ABS
DESCRIPTION: The Chevrolet Onix is a subcompact car launched by American automaker Chevrolet in Brazil at the 2012 São Paulo International Motor Show[1] to succeed some versions of Chevrolet Celta. Offered initially as a five-door hatchback, a four-door sedan was launched in 2013 and called the Chevrolet Prisma.[2] The Onix is currently only sold in some South American countries part of Mercosur, including Brazil, Argentina, Colombia, Paraguay and Uruguay.
TECHNICAL DETAIL: The Onix is available in three trim levels (LS, LT and LTZ) with two 4-cylinder engines, the 1.0-litre producing 78 PS (57 kW; 77 bhp) (petrol)/ 80 PS (59 kW; 79 bhp) (ethanol) and 1.4-litre 98 PS (72 kW; 97 bhp) (petrol)/106 PS (78 kW; 105 bhp) (ethanol) offering automatic or five-speed manual transmission..

我在下面尝试了下面的代码，但它与换行不匹配：

cleantext = re.sub(r':\s*[\r\n]*', ': ', cleantext)

我还尝试了另一种代码：

cleantext = cleantext.replace(': \n', ': ')

也不起作用。我该怎么处理呢？

Answer 1

我认为你的问题有两部分，第一部分是用两行连接字符串，如下所示

COLOR: Black

至

COLOR: black

然后删除所有空行

对于第一部分，可以使用以下方法替换re.sub

cleantext = re.sub(r'(.*):\s*[\r\n](.*)', '\g<1>: \g<2>', cleantext)

为了删除空行，通过re.sub执行这一操作将很困难，所以我建议使用cleantext = "\n".join([line for line in cleantext.split('\n') if line.strip() != ''])

这将给出你所期望的答案。

Answer 2

我觉得这个应该适合你

>>> string = """
CAR: Onix


MODEL: LTZ


COLOR:
Black



ACESSORIES:
ABS



DESCRIPTION:


The Chevrolet Onix is a subcompact car launched by American automaker Chevrolet in Brazil at the 2012 São Paulo International Motor Show[1] to succeed some versions of Chevrolet Celta. Offered initially as a five-door hatchback, a four-door sedan was launched in 2013 and called the Chevrolet Prisma.[2] The Onix is currently only sold in some South American countries part of Mercosur, including Brazil, Argentina, Colombia, Paraguay and Uruguay.



TECHNICAL DETAIL:
The Onix is available in three trim levels (LS, LT and LTZ) with two 4-cylinder engines, the 1.0-litre producing 78 PS (57 kW; 77 bhp) (petrol)/ 80 PS (59 kW; 79 bhp) (ethanol) and 1.4-litre 98 PS (72 kW; 97 bhp) (petrol)/106 PS (78 kW; 105 bhp) (ethanol) offering automatic or five-speed manual transmission..
"""
>>> list_string = string.split("\n\n\n")
>>> for each in list_string:
    print each.replace("\n","").strip()


CAR: Onix
MODEL: LTZ
COLOR:Black
ACESSORIES:ABS
DESCRIPTION:
The Chevrolet Onix is a subcompact car launched by American automaker Chevrolet in Brazil at the 2012 São Paulo International Motor Show[1] to succeed some versions of Chevrolet Celta. Offered initially as a five-door hatchback, a four-door sedan was launched in 2013 and called the Chevrolet Prisma.[2] The Onix is currently only sold in some South American countries part of Mercosur, including Brazil, Argentina, Colombia, Paraguay and Uruguay.
TECHNICAL DETAIL:The Onix is available in three trim levels (LS, LT and LTZ) with two 4-cylinder engines, the 1.0-litre producing 78 PS (57 kW; 77 bhp) (petrol)/ 80 PS (59 kW; 79 bhp) (ethanol) and 1.4-litre 98 PS (72 kW; 97 bhp) (petrol)/106 PS (78 kW; 105 bhp) (ethanol) offering automatic or five-speed manual transmission..