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|
module MIME
class Types
end
end
require 'mime/type/columnar'
# MIME::Types::Columnar is used to extend a MIME::Types container to load data
# by columns instead of from JSON or YAML. Column loads of MIME types loaded
# through the columnar store are synchronized with a Mutex.
#
# MIME::Types::Columnar is not intended to be used directly, but will be added
# to an instance of MIME::Types when it is loaded with
# MIME::Types::Loader#load_columnar.
module MIME::Types::Columnar
LOAD_MUTEX = Mutex.new # :nodoc:
def self.extended(obj) # :nodoc:
super
obj.instance_variable_set(:@__mime_data__, [])
obj.instance_variable_set(:@__attributes__, [])
end
# Load the first column data file (type and extensions).
def load_base_data(path) #:nodoc:
@__root__ = path
each_file_line('content_type', false) do |line|
content_type, extensions = line.split
type = MIME::Type::Columnar.new(self, content_type, extensions)
@__mime_data__ << type
add(type)
end
self
end
private
def each_file_line(name, lookup = true)
LOAD_MUTEX.synchronize do
next if @__attributes__.include?(name)
File.open(File.join(@__root__, "mime.#{name}.column"), 'r:UTF-8') do |f|
i = -1
f.each_line do |line|
line.chomp!
if lookup
type = @__mime_data__[i += 1] or next
yield type, line
else
yield line
end
end
end
@__attributes__ << name
end
end
def load_encoding
pool = {}
each_file_line('encoding') do |type, line|
line.freeze
type.encoding = (pool[line] ||= line)
end
end
def load_docs
each_file_line('docs') do |type, line|
type.docs = arr(line)
end
end
def load_obsolete
each_file_line('obsolete') do |type, line|
type.obsolete = bool(line)
end
end
def load_references
each_file_line('references') do |type, line|
type.instance_variable_set(:@references, arr(line))
end
end
def load_registered
each_file_line('registered') do |type, line|
type.registered = bool(line)
end
end
def load_signature
each_file_line('signature') do |type, line|
type.signature = bool(line)
end
end
def load_system
each_file_line('system') do |type, line|
type.system = (line unless line == '-'.freeze)
end
end
def load_xrefs
each_file_line('xrefs') { |type, line| type.xrefs = dict(line) }
end
def load_friendly
each_file_line('friendly') { |type, line|
v = dict(line)
type.friendly = v.empty? ? nil : v
}
end
def load_use_instead
each_file_line('use_instead') do |type, line|
type.use_instad = (line unless line == '-'.freeze)
end
end
def dict(line)
if line == '-'.freeze
{}
else
line.split('|'.freeze).each_with_object({}) { |h, l|
k, v = l.split('^'.freeze)
v = [ nil ] if v.empty?
h[k] = v
}
end
end
def arr(line)
if line == '-'.freeze
[]
else
line.split('|'.freeze).flatten.compact.uniq
end
end
def bool(line)
line == '1'.freeze ? true : false
end
end
unless MIME::Types.private_method_defined?(:load_mode)
class << MIME::Types
private
def load_mode
{ columnar: true }
end
end
require 'mime/types'
end
|
