CODEWITHSUNDEEP
python
Nikhil Gupta
Nikhil Gupta

Reputation: 561

trouble in rearranging the data in a text file using python

I am working on a code that does a lot of weird things. One of those weird things is it generates a file called combined.glm and the content of this file looks like this:

object line_space {
    content;
    content;
}

object line_conf {
    content;
    content;
}
#2 more line_conf objects

object line_ug { 
    content;
    content;
}
#70 more line_ug

object nod_l {
    content;
    content;
}
#65 more nod_l

I want to move all the nod_l sections above line_ug section i.e., right after line_conf section. The way I am trying to do is something like this:

...
noding=open("combined.glm",'r').readlines()
combined_order=open("combined_order.glm",'w')
for ko,comblineo in enumerate(noding):
    if 'object line_space {' in comblineo:
        combined_order.writelines(noding[ko:ko+5])
for kt,comblinet in enumerate(noding):
    if 'object line_conf {' in comblinet:
        combined_order.writelines(noding[kt:kt+5])
for kr,combliner in enumerate(noding):
    if 'object nod_l {' in combliner:
        combined_order.writelines(noding[kr:kr+5])
for kf,comblinef in enumerate(noding):
    if 'object line_ug' in comblinef:
        combined_order.writelines(noding[kf:kf+5])
...

But it is not working (in my head, this makes sense). I have about 28 nod_l copied properly, then lot of null characters and about 16 line_ug then another nod_l and breaks. I am not sure what is going on.

Upvotes: 1

Views: 55

Answers (1)

L3viathan
L3viathan

Reputation: 27273

This is dirty, but it works.

import re

old = open("combined.glm").read()

space = re.compile("object line_space {.*?}",re.DOTALL + re.MULTILINE)
conf = re.compile("object line_conf {.*?}",re.DOTALL + re.MULTILINE)
ug = re.compile("object line_ug {.*?}",re.DOTALL + re.MULTILINE)
nod = re.compile("object nod_l {.*?}",re.DOTALL + re.MULTILINE)

all_space = space.findall(old)
all_conf = conf.findall(old)
all_ug = ug.findall(old)
all_nod = nod.findall(old)

with open("combined_order.glm","w") as f:
    for thing in all_space:
        f.write(thing + "\n\n")
    for thing in all_conf:
        f.write(thing + "\n\n")
    for thing in all_nod:
        f.write(thing + "\n\n")
    for thing in all_ug:
        f.write(thing + "\n\n")

Upvotes: 2

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