CODEWITHSUNDEEP
pythonregex
user15479632
user15479632

Reputation:

Remove letter which followed by number

If we have the sentence = "George coudn't play football in y. 1998 but plays football at θ. 226", which by letter I mean any letter from Greek or English vocabulary. Is there any way to have as an output = "George coudn't play football in but plays football in"

I tried this one, which removed only the numbers

re_numb = re.compile(r'\d+')
sent = re_numb.sub('', sent)

Upvotes: 0

Views: 99

Answers (3)

Pubudu Sitinamaluwa
Pubudu Sitinamaluwa

Reputation: 978

The following regex can capture the sentence before .y 1995 and θ. 226

(\D)+(?=\s.\.\s\d+)

Demo

If you want to capture only up to first match add ^ to only match from the start of the string

^(\D)+(?=\s.\.\s\d+)

Demo

EDIT Code sample

To extract each match

import re

text = "George couldn't play football in y. 1998 but plays football at θ. 226"

for match in re.finditer(r'(\D)+(?=\s.\.\s\d+)', text):
    print(match.group(), end='')  # print without new line

Output

George couldn't play football in but plays football at

To extract only the first match

import re

text = "George couldn't play football in y. 1998 but plays football at θ. 226"

for match in re.finditer(r'^(\D)+(?=\s.\.\s\d+)', text):
    print(match.group(), end='')

Output

George couldn't play football in

Upvotes: 0

Jan
Jan

Reputation: 43199

Just use a Unicode range as in

\s+[\u03b1-\u03c9]+\.\s+\d+

See a demo on regex101.com and a Unicode table for greek letters.

In Python this could be

import re

pattern = re.compile(r'\s+[\u03b1-\u03c9]+\.\s+\d+')

sentence = "George coudn't play football in γ. 1998 but plays football at θ. 226"
sentence = pattern.sub('', sentence)

print(sentence)

And yields

George coudn't play football in but plays football at

Upvotes: 1

logi-kal
logi-kal

Reputation: 7880

In python, \w matches also Greek letters. So you can use:

\b\w\. +\d+\b

where \b is a word boundary.

If you don't want \w to match also underscores:

\b[^_\W]\. +\d+\b

See demo

Upvotes: 0

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