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| Dir : //proc/self/root/opt/alt/ruby18/lib64/ruby/1.8/yaml/dbm.rb |
require 'yaml'
require 'dbm'
#
# YAML + DBM = YDBM
# - Same interface as DBM class
#
module YAML
class DBM < ::DBM
VERSION = "0.1"
def []( key )
fetch( key )
end
def []=( key, val )
store( key, val )
end
def fetch( keystr, ifnone = nil )
begin
val = super( keystr )
return YAML::load( val ) if String === val
rescue IndexError
end
if block_given?
yield keystr
else
ifnone
end
end
def index( keystr )
super( keystr.to_yaml )
end
def values_at( *keys )
keys.collect { |k| fetch( k ) }
end
def delete( key )
v = super( key )
if String === v
v = YAML::load( v )
end
v
end
def delete_if
del_keys = keys.dup
del_keys.delete_if { |k| yield( k, fetch( k ) ) == false }
del_keys.each { |k| delete( k ) }
self
end
def reject
hsh = self.to_hash
hsh.reject { |k,v| yield k, v }
end
def each_pair
keys.each { |k| yield k, fetch( k ) }
self
end
def each_value
super { |v| yield YAML::load( v ) }
self
end
def values
super.collect { |v| YAML::load( v ) }
end
def has_value?( val )
each_value { |v| return true if v == val }
return false
end
def invert
h = {}
keys.each { |k| h[ self.fetch( k ) ] = k }
h
end
def replace( hsh )
clear
update( hsh )
end
def shift
a = super
a[1] = YAML::load( a[1] ) if a
a
end
def select( *keys )
if block_given?
self.keys.collect { |k| v = self[k]; [k, v] if yield k, v }.compact
else
values_at( *keys )
end
end
def store( key, val )
super( key, val.to_yaml )
val
end
def update( hsh )
hsh.keys.each do |k|
self.store( k, hsh.fetch( k ) )
end
self
end
def to_a
a = []
keys.each { |k| a.push [ k, self.fetch( k ) ] }
a
end
def to_hash
h = {}
keys.each { |k| h[ k ] = self.fetch( k ) }
h
end
alias :each :each_pair
end
end