How to remove part of string with Regex?

Question

I'm trying to strip the following;

INPUT:

[color=00ff08]100[/color](3.0/3.0)

The =00ff08 will change given the color, so that has to be variable.

OUTPUT:

100(3.0/3.0)

Basically I want to remove [color=*****] and [/color] from the string.

Thanks, I'm so horrible at regex. Maybe I should get a book.

Possible duplicate of [Learning Regular Expressions](https://stackoverflow.com/questions/4736/learning-regular-expressions) — Sayse, Jul 03 '18 at 10:53
[This](https://regexr.com) is a good place for training on `regex`. — Ali Shahrivarian, Jul 03 '18 at 11:33

score 1 · Accepted Answer · answered Jul 03 '18 at 10:53

1

Using re.sub

Demo:

import re

s = """INPUT [color=00ff08]100[/color](3.0/3.0)"""

text = re.sub("\[color=.*?\]", "", s)
text = re.sub("\[/color\]", "", text)  

print(text)

answered Jul 03 '18 at 10:53

Rakesh

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Thank you so much, very clear and in Python. You made my day! – Carl Von Jul 03 '18 at 10:57

score 0 · Answer 2 · answered Jul 03 '18 at 10:54

re.sub(r'(.*)'
       r'\[color=[^\]]*\]'
       r'([^\[]*)'
       r'\[/color\]'
       r'(.*)', r'\1\2\3', my_string)

This captures the relevant parts into groups, ignores the remaining parts and stitches the result together again.

Doing it like this doesn't cloak problems in the input. If you like a more robust solution (which also works decently for slightly wrong input), have a look at @Rakesh's answer. His would also work for inputs like INPUT 100[/color][/color](3.0/3.0) etc.

score 0 · Answer 3 · answered Jul 03 '18 at 10:56

0

Here's something that works for all tags:

a = "[color=00ff08]100[/color](3.0/3.0)"
re.sub("\\[[^]]*]", "", a)

Output:

'100(3.0/3.0)'

answered Jul 03 '18 at 10:56

Ashish Acharya

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How to remove part of string with Regex?

3 Answers3