regex + string formatting?

[Patrick C]

Can I regex (dont know if that's truely a verb, but i digress...) in string functions such as split, replace or strip?

What i want to do is with a file that has lines like

asd5Jkl;lk
132bn8K;lk

I want to split them whenever i have a number followed by a capital letter.

I immediatly thought usinng regex and somehing like pattern = "[0-9][A-Z]"

Ideally i'd split it between the number and letter, say with a '\n' so
[0-9][A-Z] would become [0-9] \n [A-Z]

any thoughts on this?

[bvdet]

Can I regex (dont know if that's truely a verb, but i digress...) in string functions such as split, replace or strip?

What i want to do is with a file that has lines like

asd5Jkl;lk
132bn8K;lk

I want to split them whenever i have a number followed by a capital letter.

I immediatly thought usinng regex and somehing like pattern = "[0-9][A-Z]"

Ideally i'd split it between the number and letter, say with a '\n' so
[0-9][A-Z] would become [0-9] \n [A-Z]

any thoughts on this?

The following will break a string by slicing at the match and join the strings with '\n'.

import re
 
def split_on_re(s):
    # split a string between the number and capital letter
    patt = re.compile(r'([0-9])(?=[A-Z])')
    while True:
        m = patt.search(s)
        if m:
            s = '\n'.join([s[:m.end()], s[m.end():]])
        else:
            break
    return s
 
print repr(split_on_re('asd5Jkl;lk132bn8K;lk8J'))
 
>>> 'asd5\nJkl;lk132bn8\nK;lk8\nJ'

[ghostdog74]

Can I regex (dont know if that's truely a verb, but i digress...) in string functions such as split, replace or strip?

What i want to do is with a file that has lines like

asd5Jkl;lk
132bn8K;lk

I want to split them whenever i have a number followed by a capital letter.

I immediatly thought usinng regex and somehing like pattern = "[0-9][A-Z]"

Ideally i'd split it between the number and letter, say with a '\n' so
[0-9][A-Z] would become [0-9] \n [A-Z]

any thoughts on this?

import sys
for line in open("file"):
    for n,l in enumerate(line):
        if l.isdigit() and line[n+1].isupper():
            sys.stdout.write(l + "\n")
        else: sys.stdout.write(l)