Regex pattern with non-ASCII characters

Question

Problem summary

I have this regex python code:

In

lst =[' ', 'US$170.8980\xa0billion', '[2]', '\xa0(2018)']
for i in lst:
    pat = re.compile(r'([\x1F-\x7F]+).+(\d+)')
    results=pat.search(i)
    print(results)

I am getting this ouput with my regex pattern:

Out

None
<_sre.SRE_Match object; span=(0, 11), match='US$170.8980'>
None
<_sre.SRE_Match object; span=(1, 6), match='(2018'>

Desired Ouput

Ideally, I want to get this output:

[US$170.8980-billion-(2018)]

The parentheses in your regular expression are for capturing groups, if you want to match a literal ( you need to escape it `(' — iakobski
– iakobski, Commented Aug 4, 2019 at 18:56
What do you want, a better pattern or a different way to do it ? It looks like both because you're inputting a list into a regex black box and coming out with a single string with hyphens.. — user557597
– user557597, Commented Aug 4, 2019 at 19:12
A different way to do it. Until all desired information exists I don't care for hyphens or formatting. — Faisal
– Faisal, Commented Aug 4, 2019 at 19:17

Lucas Vazquez · Accepted Answer · 2019-08-04 19:31:04Z

1

This works for me:

string = 'US$170.8980\xa0billion'
pat = ''.join(re.findall('([a-zA-Z0-9$.])', string))

Adapted

lst = [' ', 'US$170.8980\xa0billion', '[2]', '\xa0(2018)']
for i in lst:
    pat = ''.join(re.findall('([a-zA-Z0-9$.\s])', i))
    print(pat)

Alternative:

(re.findall('([^�])', i)

answered Aug 4, 2019 at 19:31

Lucas Vazquez

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1 Comment

Faisal Over a year ago

Thanks a lot but it still contains unwanted reference '[2]'

Community · Accepted Answer · 2020-06-20 09:12:55Z

1

Maybe, this expression might be close to what you have in mind,

import re

lst =[' ', 'US$170.8980\xa0billion', '[2]', '\xa0(2018)']

output =''
for index,item in enumerate(lst):
    item = item.strip()
    if re.match('\[\d+\]',item) == None:
        if index == len(lst)-1:
            output +='-'
        output += re.sub(r'[^ -~]','-', item)

print(output)

not sure though.

Output

US$170.8980-billion-(2018)

edited Jun 20, 2020 at 9:12

CommunityBot

11 silver badge

answered Aug 4, 2019 at 19:05

Emma Marcier

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1 Comment

Faisal Over a year ago

Thanks for your suggestion. Actually, I will use this code in scrapy xpath. I am not sure I can fit your suggested code there.

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Regex pattern with non-ASCII characters

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