How to change string position within line from text file?

Question

0.00/5 (No votes)

See more:

, +

I am having a bit of trouble changing position of some words in specific lines from text file look like this:

product  name="anything" s_c="7" act_ferq="UREWUERWERU" sys_name="mhr22:21140017-21140076"
common name="xyz" value="1234"
common

product  name="anything" s_c="7" control_type="pos" act_ferq="UREWUERWERU" 
sys_name="mhr22:21140017-21140076"
common name="xyz" value="1234"
common

product  name="anything" s_c="7" act_ferq="UREWUERWERU" sys_name="mhr22:21140016-21140079"
common name="xyz" value="1234"
common

product  name="anything" s_c="7" control_type="neg" act_ferq="UREWUERWERU" 
sys_name="mhr22:21140017-21140076"
common name="xyz" value="1234"
common

I want it to look like:

product  name="anything" sys_name="mhr22:21140017-21140076 act_ferq="UREWUERWERU" s_c="7"
common name="xyz" value="1234"
common


product  name="anything" sys_name="mhr22:21140017-21140076" control_type="pos" 
common name="xyz" value="1234"
common

product  name="anything" sys_name="mhr22:21140016-21140079 act_ferq="UREWUERWERU" s_c="7"
common name="xyz" value="1234"
common


product  name="anything" sys_name="mhr22:21140017-21140076" control_type="neg"
common name="xyz" value="1234"
common

What I have tried:

I am working on it by using python regex here's what I am following (pseudocode):

filein=open('inputfile.txt','r')
fileout=open('fileout.txt','w')

for line in filein.readlines():
    if re.search('product  name="[^\s]+"',line):
        if "control_type" in line:
            delete  s_c="7" & act_ferq="UREWUERWERU"
            and rearrange line
           (#like this# product  name="anything" sys_name="mhr22:21140017-21140076" 
control_type="neg")
        else:
            rearrange line 
            print (line)
            (#like this# #product  name="anything" sys_name="mhr22:21140017-21140076 
act_ferq="UREWUERWERU" s_c="7")

Thank you in advanced!

Posted 22-Jun-21 20:30pm

rebel0

Updated 23-Jun-21 1:58am

Add a Solution

Comments

Richard MacCutchan 23-Jun-21 3:51am

It would be simpler to use the split method on the strings and then re-order the separate fields according to your requirements.

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Richard MacCutchan · Answer 1 · 2021-06-23T01:58:00

Try this:

Python

def reformat():
    product = {}
    f = open('inputfile.txt', 'r')
    for line in f:
        line = line.rstrip('\n')
        if line.startswith('product'):
            prod = line.split()
            for field in prod[1:]:
                key, value = field.split('=')
                product[key] = value
        elif line.startswith('sys_name'):
            key, value = line.split('=')
            product[key] = value
        else:
            # write out the product fields first
            if len(product) > 0:
                print('product', end=' ')
                if 'control_type' in product:
                    for key in [ 'name', 'sys_name', 'control_type' ]:
                        print(F'{key}={product[key]}', end = ' ')
                else:
                    for key in [ 'name', 'sys_name', 'act_ferq', 's_c' ]:
                        print(F'{key}={product[key]}', end = ' ')
                print('')
                product = {}
            print(line)

This is a quick and dirty solution and can be cleaned up in a few areas. Obviously the print statements need to be changed to write to the output file.