CODEWITHSUNDEEP
rubyregex
user1774481
user1774481

Reputation: 193

just capture the text and remove the email with a regex

I'm trying to make a regex that removes me in my text email: [email protected].

example: I ​​request information on your project email: [email protected]
So I did this that captures me "email: [email protected]"

message ="I ​​request information on your project email. [email protected]"
message.gsub!("/(email: [-a-z0-9_+\.]+\@([-a-z0-9]+\.)+[a-z0-9]{2,4}$)/i")

it returns me nothing, and I wish there was just in the message text.

thanks

Upvotes: 0

Views: 101

Answers (3)

Uri Agassi
Uri Agassi

Reputation: 37409

Your code has several problems:

  • You are looking for "email: ...", but you message has "email. ...".

  • You use gsub!, with one parameter, which is not the classic use case, and returns an Enumerator. The classic use case expects a second parameter, which indicates to what you want to substitute the found matches:

    Performs the substitutions of String#gsub in place, returning str, or nil if no substitutions were performed. If no block and no replacement is given, an enumerator is returned instead.

  • You pass a string to the gsub! - "/(email: [-a-z0-9_+\.]+\@([-a-z0-9]+\.)+[a-z0-9]{2,4}$)/i", which is different than sending a regex. To pass a regex, you need to drop the quotes around it: /(email: [-a-z0-9_+\.]+\@([-a-z0-9]+\.)+[a-z0-9]{2,4}$)/i

So a fix to your code would look like this:

message ="I ​​request information on your project email: [email protected]"
message.gsub!(/(email: [-a-z0-9_+\.]+\@([-a-z0-9]+\.)+[a-z0-9]{2,4}$)/i, '')
# => "I ​​request information on your project "

Also note I changed your code to use gsub instead of gsub!, since gsub! changes the underlying string, instead of creating a new one, and unless you have a good reason to do that, it is not encouraged to mutate the input arguments...

Upvotes: 0

Benji
Benji

Reputation: 611

If you want to remove the email from the text use String#sub

message = "I ​​request information on your project email. [email protected]"
message.sub!(/[A-Za-z]{5}:\s[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,4}/, '')
# => "I ​​request information on your project "

Upvotes: 0

Bala
Bala

Reputation: 11244

Try this. This should work for both uppercase, lowercase and emails appear in the middle of the string.

email = /[A-Za-z]{5}:\s[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,4}/

s = "I request information on your project email: [email protected]"
s.match(email).pre_match     #=> "I request information on your project "

s2 = "This email: [email protected] is in the middle"
s2.match(email).pre_match    #=> "This "
s2.match(email).post_match   #=> " is in the middle"

But there are more cases not covered e.g. email: followed by many spaces

Upvotes: 1

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