- + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - +

A	abbrev	abbrev
B	base64	base64
	benchmark	benchmark
	bigdecimal	bigdecimal
C	cgi	cgi
	cmath	cmath
	coverage	coverage
	csv	csv
	curses	curses
D	date	date
	dbm	dbm
	debug	debug
	delegate	delegate
	digest	digest
	dl	dl
	drb	drb
E	e2mmap	e2mmap
	English	English
	erb	erb
	etc	etc
	extmk	extmk
F	fcntl	fcntl
	fiddle	fiddle
	fileutils	fileutils
	find	find
	forwardable	forwardable
G	gdbm	gdbm
	generator	generator
	getoptlong	getoptlong
	gserver	gserver
I	iconv	iconv
	io/wait	io/wait
	ipaddr	ipaddr
	irb	irb
J	json	json
L	logger	logger
M	mathn	mathn
	mathn	mathn
	matrix	matrix
	minitest/benchmark	minitest/benchmark
	minitest/mock	minitest/mock
	minitest/spec	minitest/spec
	minitest/unit	minitest/unit
	mkmf	mkmf
	monitor	monitor
	mutex_m	mutex_m
N	net/ftp	net/ftp
	net/http	net/http
	net/imap	net/imap
	net/pop	net/pop
	net/smtp	net/smtp
	net/telnet	net/telnet
	nkf	nkf
O	objspace	objspace
	observer	observer
	open-uri	open-uri
	open3	open3
	openssl	openssl
	optparse	optparse
	ostruct	ostruct
P	pathname	pathname
	pp	pp
	prettyprint	prettyprint
	prime	prime
	profile	profile
	profiler	profiler
	pstore	pstore
	psych	psych
	pty	pty
R	racc	racc
	racc/parser	racc/parser
	rake	rake
	rdoc	rdoc
	readline	readline
	resolv	resolv
	resolv-replace	resolv-replace
	rexml	rexml
	rinda	rinda
	ripper	ripper
	rss	rss
	rubygems	rubygems
S	scanf	scanf
	sdbm	sdbm
	securerandom	securerandom
	set	set
	shell	shell
	shellwords	shellwords
	singleton	singleton
	socket	socket
	stringio	stringio
	strscan	strscan
	sync	sync
	syslog	syslog
T	tempfile	tempfile
	test/unit	test/unit
	thread	thread
	thwait	thwait
	time	time
	timeout	timeout
	tk	tk
	tmpdir	tmpdir
	tracer	tracer
	tsort	tsort
U	un	un
	uri	uri
W	weakref	weakref
	webrick	webrick
	win32ole	win32ole
X	xmlrpc	xmlrpc
Y	yaml	yaml
Z	zlib	zlib

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