将Perl正则表达式转换为Python正则表达式

# find lines with authors
import re

# multiline string to simulate possible input
text = '''
Stuff before
This won't be matched...
Author(s)    : Firstname Lastname  
               Firstname Lastname  
               Firstname Lastname  
               Firstname Lastname
Other(s)     : Something else we won't match
               More shenanigans....
Only the author names will be matched.
'''

# run the regex to pull author lines from the sample input
authors = re.search(r'Author(s)s*:s*(.*?)^[^s]',text,re.DOTALL | re.MULTILINE).group(1)

上面的正则表达式匹配起始文本(作者,空格,冒号,空格),它通过匹配后面以空格开头的所有行给出了下面的结果：

'''Firstname Lastname  
           Firstname Lastname  
           Firstname Lastname  
           Firstname Lastname
'''

然后,您可以使用以下正则表达式对这些结果中的所有作者进行分组

# grab authors from the lines
import re
authors = '''Firstname Lastname  
           Firstname Lastname  
           Firstname Lastname  
           Firstname Lastname
'''

# run the regex to pull a list of individual authors from the author lines
authors = re.findall(r'^s*(.+?)s*$',authors,re.MULTILINE)

哪个给出了作者列表：

['Firstname Lastname','Firstname Lastname','Firstname Lastname']

组合示例代码：

text = '''
Stuff before
This won't be matched...
Author(s)    : Firstname Lastname  
               Firstname Lastname  
               Firstname Lastname  
               Firstname Lastname
Other(s)     : Something else we won't match
               More shenanigans....
Only the author names will be matched.
'''

import re
stage1 = re.compile(r'Author(s)s*:s*(.*?)^[^s]',re.DOTALL | re.MULTILINE)
stage2 = re.compile('^s*(.+?)s*$',re.MULTILINE)

preliminary = stage1.search(text).group(1)
authors = stage2.findall(preliminary)

这使作者成为：

['Firstname Lastname','Firstname Lastname']

成功！