使用python从纯文本中提取包括空值的字符串

Question

I have a string

a='S
LINC             SHORT LEGAL                                   TITLE NUMBER
0037 471 661     1720278;16;21                                 172 211 342

LEGAL DESCRIPTION
PLAN 1720278  
BLOCK 16  
LOT 21  
EXCEPTING THEREOUT ALL MINES AND MINERALS  

ESTATE: FEE SIMPLE  
ATS REFERENCE: 4;24;54;2;SW

MUNICIPALITY: CITY OF EDMONTON

REFERENCE NUMBER: 172 023 641 +71

---------------------------------------------------------------------------- 
----
                     REGISTERED OWNER(S)
REGISTRATION    DATE(DMY)  DOCUMENT TYPE      VALUE           CONSIDERATION
----------------------------------------------------------------------------- 
---

172 211 342    15/08/2017                      $610,000        CASH & MTGE'

Need to extract values below document type, value and consideration and output in an array like ['','$610,000','CASH & MTGE'] I tried using findall(r'(?<!\\S)(?:[$]\\S+|[^$\\d]+)\\b', a) . But I could only get ['$610,000','CASH & MTGE'] and no value for document type since it is empty.

Answer 1

From what I understood, you would like to return an Array with the values $610,000 CASH & MTGE' from the string right?

Assuming the required string value would remain in the end, we can leverage the splitlines function. Then, use len(a)-1 to fetch the required string something like this:

>>> a='''S
LINC             SHORT LEGAL                                   TITLE NUMBER
0037 471 661     1720278;16;21                                 172 211 342

LEGAL DESCRIPTION
PLAN 1720278  
BLOCK 16  
LOT 21  
EXCEPTING THEREOUT ALL MINES AND MINERALS  

ESTATE: FEE SIMPLE  
ATS REFERENCE: 4;24;54;2;SW

MUNICIPALITY: CITY OF EDMONTON

REFERENCE NUMBER: 172 023 641 +71

---------------------------------------------------------------------------- 
----
                     REGISTERED OWNER(S)
REGISTRATION    DATE(DMY)  DOCUMENT TYPE      VALUE           CONSIDERATION
----------------------------------------------------------------------------- 
---

172 211 342    15/08/2017                      $610,000        CASH & MTGE'''

>>> b=a.splitlines()
>>> req_line = b[len(b)-1]
>>> print(req_line)