解析替换引号

Question

我正在尝试解析一个文本文件,以便在python中对它进行一些统计.为此,我想用标记替换一些标点符号.这种令牌的一个例子是终止句子(.!?成为<EndS>)的所有标点符号.我设法使用正则表达式做到这一点.现在我正在尝试解析引号.因此,我认为,我需要一种方法来区分开盘报价和收盘价.我正在逐行读取输入文件,我无法保证报价将是平衡的.

例如:

 "Death to the traitors!" cried the exasperated burghers.
 "Go along with you," growled the officer, "you always cry the same thing over again. It is very tiresome."

应该变得像:

 [Open] Death to the traitors! [Close] cried the exasperated burghers.
 [Open] Go along with you, [Close] growled the officer, [Open] you always cry the same thing over again. It is very tiresome. [Close]

是否可以使用正则表达式执行此操作？有没有更容易/更好的方法来做到这一点？

Answer 1

你可以使用sub方法(模块重新):

import re

def replace_dbquote(render):
    return '[OPEN]' + render.group(0).replace('"', '') + '[CLOSE]'

string = '"Death to the traitors!" cried the exasperated burghers. "Go along with you", growled the officer.'
parser = re.sub('"[^"]*"', replace_dbquote, string)

print(parser)

https://docs.python.org/3.5/library/re.html#re.sub