Lecture on Regular Expression - Batch 224

email.rb

PATTERN1 = /^(?<first_name>\w+)\.(?<last_name>\w+)@(?<provider>.+)\.(.+)$/
PATTERN2 = /^(\w+)\.(\w+)@(.+)\.(.+)$/

email = "[email protected]"

match = email.match(PATTERN1) # same as PATTERN.match(email)


p match

provider = match[:provider]
first_name = match[:first_name]

puts "#{first_name.capitalize}'s email provider is #{provider}"

regexp.rb

PATTERN = /^\+\d{2}\s\d{2}\s\d{4}\s\d{4}$/

phone_number = " 20 7946 0234"


if phone_number =~ PATTERN
  puts "This is a valid UK international phone number"
else
  puts "It's not valid!"
end


text = "
this is a multi-line text
try to match only this line
and not the others
try
"

#.start of line.    end of line
p text =~ /^try .* line$/
#start of string.     end of string
p text =~ /\Atry .* line\z/