Called by the TupleSpace
to check if the object is still alive.
Reset the expiry time according to sec_or_renewer
.
nil
it is set to expire in the far future.
true
it has expired.
Numeric
it will expire in that many seconds.
Otherwise the argument refers to some kind of renewer object which will reset its expiry time.
Ensure path
and path with extension
are identical.
Returns true if URI
is hierarchical.
URI
has components listed in order of decreasing significance from left to right, see RFC3986 tools.ietf.org/html/rfc3986 1.2.3.
require 'uri' uri = URI.parse("http://my.example.com/") uri.hierarchical? #=> true uri = URI.parse("mailto:joe@example.com") uri.hierarchical? #=> false
Returns URL-unescaped string following RFC 3986.
URL-decode a string following RFC 3986 with encoding(optional).
string = CGI.unescape("%27Stop%21%27+said%20Fred") # => "'Stop!'+said Fred"
Set
all the parameters.
Returns true
if the given instance variable is defined in obj. String
arguments are converted to symbols.
class Fred def initialize(p1, p2) @a, @b = p1, p2 end end fred = Fred.new('cat', 99) fred.instance_variable_defined?(:@a) #=> true fred.instance_variable_defined?("@b") #=> true fred.instance_variable_defined?("@c") #=> false
Returns true
if the given class variable is defined in obj. String
arguments are converted to symbols.
class Fred @@foo = 99 end Fred.class_variable_defined?(:@@foo) #=> true Fred.class_variable_defined?(:@@bar) #=> false
Returns true
if a local variable symbol
exists.
def foo a = 1 binding.local_variable_defined?(:a) #=> true binding.local_variable_defined?(:b) #=> false end
This method is the short version of the following code:
binding.eval("defined?(#{symbol}) == 'local-variable'")
Specifies a character to be appended on completion. Nothing will be appended if an empty string (“”) or nil is specified.
For example:
require "readline" Readline.readline("> ", true) Readline.completion_append_character = " "
Result:
> Input "/var/li". > /var/li Press TAB key. > /var/lib Completes "b" and appends " ". So, you can continuously input "/usr". > /var/lib /usr
NOTE: Only one character can be specified. When “string” is specified, sets only “s” that is the first.
require "readline" Readline.completion_append_character = "string" p Readline.completion_append_character # => "s"
Raises NotImplementedError
if the using readline library does not support.
Returns a string containing a character to be appended on completion. The default is a space (“ ”).
Raises NotImplementedError
if the using readline library does not support.
When called during a completion (e.g. from within your completion_proc
), it will return a string containing the character used to quote the argument being completed, or nil if the argument is unquoted.
When called at other times, it will always return nil.
Note that Readline.completer_quote_characters
must be set, or this method will always return nil.
Sets a list of quote characters which can cause a word break.
Raises NotImplementedError
if the using readline library does not support.
Gets a list of quote characters which can cause a word break.
Raises NotImplementedError
if the using readline library does not support.
Sets a list of characters which can be used to quote a substring of the line. Completion occurs on the entire substring, and within the substring Readline.completer_word_break_characters
are treated as any other character, unless they also appear within this list.
Raises NotImplementedError
if the using readline library does not support.