Separate a string using regex based on an array of matchs

Question

I need to separate the brand from the model of a named car using a array of brands to match. I tried something like that:

import re

carName = "Fiat Strada Working 1.4 CS"

brands = ["Acura","Alfa Romeo","Aston Martin","Audi","Bentley","BMW","Bugatti","Buick","Cadillac","Chevrolet",
"Chrysler","Citroen","Dodge","Ferrari","Fiat","Ford","Geely","General Motors","GMC","Honda","Hyundai",
"Mercedes-Benz","Renault"]

carBrand = re.split("'|'.join(brands)|[^a-zA-Z ]+", carName)

print(carBrand)

But got this: ['Fiat Strada Working ', None, ' CS']

I need this: ['Fiat' , 'Strada Working 1.4 CS']

I'm having trouble finding the right regex to separate right after the join of brands.

If you split you loose the separator, so with this method Fiat will be gone — rioV8
– rioV8, Commented Jul 22, 2020 at 2:38

rioV8 · Accepted Answer · 2020-07-22 02:44:51Z

1

Your regex is completely wrong and you use the wrong re-method:

import re

carName = "Fiat Strada Working 1.4 CS"

brands = ["Acura","Alfa Romeo","Aston Martin","Audi","Bentley","BMW","Bugatti","Buick","Cadillac","Chevrolet",
"Chrysler","Citroen","Dodge","Ferrari","Fiat","Ford","Geely","General Motors","GMC","Honda","Hyundai",
"Mercedes-Benz","Renault"]

carBrand = list( re.match(f"({'|'.join(brands)})(.*)", carName).groups() )

print(carBrand)

answered Jul 22, 2020 at 2:44

rioV8

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1 Comment

Guilherme Silva Over a year ago

Thanks, that solved. Using list with re.match you can create separate elements in the list by applying regex in each one. So you create a group for the brands regex, and other for everything that comes after with ( . * )

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