Transform text in python

Question

I have data in the following format:

   This is line1 <line 1>.
   This is line2 <http://<line2> .
   This is line3 <http://<>line3>.
   This is line4 <line4> .

I want to transform this data into the following format:

   #@ <line 1>
   This is line1.
   #@ <http://<line2>
   This is line2.
   #@ <<http://<>line3> 
   This is line3. 
   #@ <line4>
   This is line4.

I tried in python by splitting at < but it does not solve my purpose as '<' and '>' are present within strings themselves. Is there any way in python or linux(sed, etc) by which I may achieve the above given transformation

Ashwini Chaudhary · Accepted Answer · 2013-11-22 06:58:38Z

3

Split only at the first <:

with open('foo.txt') as f:
    for line in f:
        a, b = line.split('<', 1)
        b = '#@ <' + b.rstrip('. \n')
        print b
        print a.rstrip() + '.'

Output:

#@ <line 1>
This is line1.
#@ <http://<line2>
This is line2.
#@ <http://<>line3>
This is line3.
#@ <line4>
This is line4.

answered Nov 22, 2013 at 6:58

Ashwini Chaudhary

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1 Comment

Jannat Arora Over a year ago

I have changed the input of question. My apologies I think that the input is somewhat misleading

NeronLeVelu · Accepted Answer · 2013-11-22 10:25:33Z

1

sed 's/\(.*\)\(<line[0-9]\{1,\}>\)./#@ \2\
\1./' YourFile

edited Nov 22, 2013 at 10:25

answered Nov 22, 2013 at 7:02

NeronLeVelu

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1 Comment

Jannat Arora Over a year ago

It is not necessary that my line begins with "This is". Sorry for my mistake in the question..i have modified it.

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