regex 返回进程ID后括号中的大写消息的正则表达式

pod7payv 于 2022-11-18 发布在其他

关注(0)|答案(7)|浏览(103)

我希望extract_pid函数在进程id之后返回带括号的大写消息。下面的代码打印pid s，但不确定如何在括号中添加大写字母：

def extract_pid(log_line):
  regex = r"\[(\d+)\]+[A-Z]"
  result = re.search(regex, log_line)
  if result is None:
    return None
  return "{} ({})".format(result[1], result)

例如：

print(extract_pid("July 31 07:51:48 mycomputer bad_process[12345]: ERROR Performing package upgrade"))

且输出将是：

12345 (ERROR)

regex

来源：https://stackoverflow.com/questions/64195435/regular-expression-to-return-the-uppercase-message-in-parenthesis-after-the-pro

7条答案

按热度按时间

bf1o4zei1#

如果在：（冒号）后面只需要大写

regex = r"\[(\d+)\]\: ([A-Z]+)"

赞(0）回复(0）举报 2022-11-18

ulmd4ohb2#

import re
def extract_pid(log_line):
    regex = r"\[(\d+)\]\: ([A-Z]*)"
    result = re.search(regex, log_line)
    if result is None:
        return None
    return "{} ({})".format(result[1],result[2])

赞(0）回复(0）举报 2022-11-18

crcmnpdw3#

我刚刚解决了。我确实挣扎过。

import re
def extract_pid(log_line):
    regex = r"\[(\d+)\]\: (\w+)"
    result = re.search(regex, log_line)
    if result is None:
        return None
    return "{} ({})".format(result[1], result[2])

print(extract_pid("July 31 07:51:48 mycomputer bad_process[12345]: ERROR Performing package upgrade")) # 12345 (ERROR)
print(extract_pid("99 elephants in a [cage]")) # None
print(extract_pid("A string that also has numbers [34567] but no uppercase message")) # None
print(extract_pid("July 31 08:08:08 mycomputer new_process[67890]: RUNNING Performing backup")) # 67890 (RUNNING)

赞(0）回复(0）举报 2022-11-18

pn9klfpd4#

正确的正则表达式为：

r"\[(\d+)\]\: ([A-Z]+)"

赞(0）回复(0）举报 2022-11-18

lymgl2op5#

import re
def extract_pid(log_line):
    regex = r"\[(\d+)\]:\s\b([A-Z]*)\b"
    result = re.search(regex, log_line)
    if result is None:
        return None
    return "{} ({})".format(result[1], (result[2]))

赞(0）回复(0）举报 2022-11-18

vwkv1x7d6#

解决方法我发现如下：

import re
def extract_pid(log_line):
regex = r"\[(\d+)\]:\s([A-Z]*)\s"
result = re.search(regex, log_line)
if result is None:
    return None
return "{} ({}) ".format(result[1],result[2])

print(extract_pid("July 31 07:51:48 mycomputer bad_process[12345]: ERROR 
Performing package upgrade")) # 12345 (ERROR)
print(extract_pid("99 elephants in a [cage]")) # None
print(extract_pid("A string that also has numbers [34567] but no uppercase 
message")) # None
print(extract_pid("July 31 08:08:08 mycomputer new_process[67890]: RUNNING 
Performing backup")) # 67890 (RUNNING)

输出为：12345（错误）无无67890（正在运行）

赞(0）回复(0）举报 2022-11-18

r8xiu3jd7#

import re
def extract_pid(log_line):
    regex = r"\[(\d+)\]\:\s\b([A-Z]*\b)" #using word boundaries makes the search case sensitive in the event our result has a mix of both lower & uppercase letters.
    result = re.search(regex, log_line)
    if result is None:
        return None
    return "{} ({})".format(result[1], result[2])

赞(0）回复(0）举报 2022-11-18

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regex 返回进程ID后括号中的大写消息的正则表达式

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