CODEWITHSUNDEEP
pythonsplit
Nishant Thakur
Nishant Thakur

Reputation: 71

split paragraphs just before a line which is start without any space

data = '''
eth 0, address 001, type ethernet
 device native, cast established.
  real fair, backup none
em 1, address 002, type ethernet
  device native, cast exit
eth 2, address 003, type ethernet
  device native, cast rescue0b0
  page device, native: action$
loopback 3, address 003, type ethernet
   device native
'''

i need to split like below.

eth 0, address 001, type ethernet
 device native, cast established.
 real fair, backup none


em 1, address 002, type ethernet
  device native, cast exit


eth 2, address 003, type ethernet
  device native, cast rescue0b0
  page device, native: action$


loopback 3, address 003, type ethernet
   device native

logic: eth, em, loopback .. all start without any space. and there could be multiple space before middle data. i need that logic

challenge: this is not mandatory to have a specific pattern at the end of each paragraph.

this is more specific question of split paragraphs with a line which is start without space and lookup the data perline in split data

Upvotes: 0

Views: 77

Answers (2)

Aaditya Ura
Aaditya Ura

Reputation: 12669

You can try some regex here :

import re
pattern=r'^\S[\s\S]+?(?=^\S|\n{2,}|\Z)'
string_1='''eth 0, address 001, type ethernet
 device native, cast established.
  real fair, backup none
em 1, address 002, type ethernet
  device native, cast exit
eth 2, address 003, type ethernet
  device native, cast rescue0b0
  page device, native: action$
loopback 3, address 003, type ethernet
   device native'''

match=re.finditer(pattern,string_1,re.M)
for find in match:
    print(find.group())

Output:

eth 0, address 001, type ethernet
 device native, cast established.
  real fair, backup none

em 1, address 002, type ethernet
  device native, cast exit

eth 2, address 003, type ethernet
  device native, cast rescue0b0
  page device, native: action$

loopback 3, address 003, type ethernet
   device native

Upvotes: 1

Kunal Mukherjee
Kunal Mukherjee

Reputation: 5853

You can use the string.splitlines() function to split multi-line string at newlines.

For splitting lines at other characters use string.split() function.

data = '''
eth 0, address 001, type ethernet
 device native, cast established.
  real fair, backup none
em 1, address 002, type ethernet
  device native, cast exit
eth 2, address 003, type ethernet
  device native, cast rescue0b0
  page device, native: action$
loopback 3, address 003, type ethernet
   device native
'''

splittedLines = data.splitlines()

for word in splittedLines:
    print(word)

Output:

eth 0, address 001, type ethernet
 device native, cast established.
  real fair, backup none

em 1, address 002, type ethernet
  device native, cast exit

eth 2, address 003, type ethernet
  device native, cast rescue0b0
  page device, native: action$

loopback 3, address 003, type ethernet
   device native

Upvotes: 0

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