class

String

A String object holds and manipulates an arbitrary sequence of bytes, typically representing characters. String objects may be created using String::new or as literals.

Because of aliasing issues, users of strings should be aware of the methods that modify the contents of a String object. Typically, methods with names ending in ``!’’ modify their receiver, while those without a ``!’’ return a new String. However, there are exceptions, such as String#[]=.

Included modules

Comparable
Enumerable

Constants

DeletePatternCache = {}

HashCache = {}

PATTERN_EUC = '[\\xa1-\\xfe][\\xa1-\\xfe]'

PATTERN_SJIS = '[\\x81-\\x9f\\xe0-\\xef][\\x40-\\x7e\\x80-\\xfc]'

PATTERN_UTF8 = '[\\xc0-\\xdf][\\x80-\\xbf]|[\\xe0-\\xef][\\x80-\\xbf][\\x80-\\xbf]'

RE_EUC = Regexp.new(PATTERN_EUC, 0, 'n')

RE_SJIS = Regexp.new(PATTERN_SJIS, 0, 'n')

RE_UTF8 = Regexp.new(PATTERN_UTF8, 0, 'n')

SUCC = {}

SqueezePatternCache = {}

TrPatternCache = {}

Files

ext/nkf/lib/kconv.rb
lib/jcode.rb
lib/scanf.rb
lib/shellwords.rb
lib/yaml/rubytypes.rb
string.c

1Note

Convert String to Class in Rails

Mange · Jan 15, 20094 thanks

ncancelliere gave us a very useful tip below, and I just want to make an addendum for it:

If you are using Rails, there is a CoreExtension for this called String#constantize. "Foo::BarKeeper".constantize #=> Foo::BarKeeper

You can use it with String#camelize if you have to convert the name too "foo/bar_keeper".camelize #=> "Foo::BarKeeper" "foo/bar_keeper".camelize.constantize #=> Foo::BarKeeper

Don't forget to rescue NameError in case there was an invalid class name. :-)