Sha256: ac072c4fceab664a0909d3ce5ad69b4eb5a9bff4a35e220329d28bb3a3ee0260
Contents?: true
Size: 1.25 KB
Versions: 21
Compression:
Stored size: 1.25 KB
Contents
# Return true if <tt>email</tt> is a valid email address
def is_email?(email)
raise ArgumentError, "'email' must be a string" if email.class != String
return false if email.empty?
parts = email.split('@')
return false if parts.size != 2
local = parts.first
return false if not local =~ /[a-zA-Z0-9_~=+-.]*/ # allowed characters
return false if local[0,1] == '.' # starts with .
return false if local[-1,1] == '.' # end with .
return false if local.include?('..') # can't repeat .
domain = parts.last
return false if not is_domain?(domain)
return true
end
# Return true if <tt>domain</tt> is a valid domain name
def is_domain?(domain)
raise ArgumentError, "'domain' must be a string" if domain.class != String
return false if domain.empty?
return false if domain.size > 255 # max number of characters in a domain
return false if not domain =~ /^[a-zA-Z0-9.\-]+$/ # allowed characters
parts = domain.split('.')
return false if parts.size > 127 # max number of subdomains
parts.all? {|part| return false if part.size > 63} # max number of characters in a subdomain
return true
end
# puts "#{File.basename(__FILE__)}: As you shape your body to the confines of your container you feel a tremendous sense of validation." # at bottom
Version data entries
21 entries across 21 versions & 1 rubygems