Raises PStore::Error if the calling code is not in a PStore#transaction.
Returns the Ruby source filename and line number containing this proc or nil if this proc was not defined in Ruby (i.e. native).
Returns the Ruby source filename and line number containing this method or nil if this method was not defined in Ruby (i.e. native).
Returns the Ruby source filename and line number containing this method or nil if this method was not defined in Ruby (i.e. native).
Returns the execution stack for the target thread—an array containing backtrace location objects.
See Thread::Backtrace::Location for more information.
This method behaves similarly to Kernel#caller_locations except it applies to a specific thread.
With a block given, calls the block with each element, but in reverse order; returns self:
a = [] (1..4).reverse_each {|element| a.push(-element) } # => 1..4 a # => [-4, -3, -2, -1] a = [] %w[a b c d].reverse_each {|element| a.push(element) } # => ["a", "b", "c", "d"] a # => ["d", "c", "b", "a"] a = [] h.reverse_each {|element| a.push(element) } # => {:foo=>0, :bar=>1, :baz=>2} a # => [[:baz, 2], [:bar, 1], [:foo, 0]]
With no block given, returns an Enumerator.
Returns the source file origin from the given object.
See ::trace_object_allocations for more information and examples.
Returns the original line from source for from the given object.
See ::trace_object_allocations for more information and examples.
Constant time memory comparison. Inputs are hashed using SHA-256 to mask the length of the secret. Returns true if the strings are identical, false otherwise.
Specifies a Proc object proc to determine completion behavior. It should take input string and return an array of completion candidates.
The default completion is used if proc is nil.
The String that is passed to the Proc depends on the Readline.completer_word_break_characters property. By default the word under the cursor is passed to the Proc. For example, if the input is “foo bar” then only “bar” would be passed to the completion Proc.
Upon successful completion the Readline.completion_append_character will be appended to the input so the user can start working on their next argument.
require 'readline' LIST = [ 'search', 'download', 'open', 'help', 'history', 'quit', 'url', 'next', 'clear', 'prev', 'past' ].sort comp = proc { |s| LIST.grep(/^#{Regexp.escape(s)}/) } Readline.completion_append_character = " " Readline.completion_proc = comp while line = Readline.readline('> ', true) p line end
require 'readline' Readline.completion_append_character = " " Readline.completion_proc = Proc.new do |str| Dir[str+'*'].grep(/^#{Regexp.escape(str)}/) end while line = Readline.readline('> ', true) p line end
When working with auto-complete there are some strategies that work well. To get some ideas you can take a look at the completion.rb file for irb.
The common strategy is to take a list of possible completions and filter it down to those completions that start with the user input. In the above examples Enumerator.grep is used. The input is escaped to prevent Regexp special characters from interfering with the matching.
It may also be helpful to use the Abbrev library to generate completions.
Raises ArgumentError if proc does not respond to the call method.
Returns the completion Proc object.
Returns the number of malloc() allocations.
Only available if ruby was built with CALC_EXACT_MALLOC_SIZE.
Start a dRuby server locally.
The new dRuby server will become the primary server, even if another server is currently the primary server.
uri is the URI for the server to bind to. If nil, the server will bind to random port on the default local host name and use the default dRuby protocol.
front is the server’s front object. This may be nil.
config is the configuration for the new server. This may be nil.
See DRbServer::new.
Start a dRuby server locally.
The new dRuby server will become the primary server, even if another server is currently the primary server.
uri is the URI for the server to bind to. If nil, the server will bind to random port on the default local host name and use the default dRuby protocol.
front is the server’s front object. This may be nil.
config is the configuration for the new server. This may be nil.
See DRbServer::new.
Get the ‘current’ server.
In the context of execution taking place within the main thread of a dRuby server (typically, as a result of a remote call on the server or one of its objects), the current server is that server. Otherwise, the current server is the primary server.
If the above rule fails to find a server, a DRbServerNotFound error is raised.
Get the ‘current’ server.
In the context of execution taking place within the main thread of a dRuby server (typically, as a result of a remote call on the server or one of its objects), the current server is that server. Otherwise, the current server is the primary server.
If the above rule fails to find a server, a DRbServerNotFound error is raised.
Stop the local dRuby server.
This operates on the primary server. If there is no primary server currently running, it is a noop.
Stop the local dRuby server.
This operates on the primary server. If there is no primary server currently running, it is a noop.
Registers server with DRb.
This is called when a new DRb::DRbServer is created.
If there is no primary server then server becomes the primary server.
Example:
require 'drb' s = DRb::DRbServer.new # automatically calls regist_server DRb.fetch_server s.uri #=> #<DRb::DRbServer:0x...>
Registers server with DRb.
This is called when a new DRb::DRbServer is created.
If there is no primary server then server becomes the primary server.
Example:
require 'drb' s = DRb::DRbServer.new # automatically calls regist_server DRb.fetch_server s.uri #=> #<DRb::DRbServer:0x...>
Removes server from the list of registered servers.
Removes server from the list of registered servers.
Retrieves the server with the given uri.
See also regist_server and remove_server.
Returns the convertible integer type of the given type. You may optionally specify additional headers to search in for the type. convertible means actually the same type, or typedef’d from the same type.
If the type is an integer type and the convertible type is found, the following macros are passed as preprocessor constants to the compiler using the type name, in uppercase.
TYPEOF_, followed by the type name, followed by =X where “X” is the found convertible type name.
TYP2NUM and NUM2TYP, where TYP is the type name in uppercase with replacing an _t suffix with “T”, followed by =X where “X” is the macro name to convert type to an Integer object, and vice versa.
For example, if foobar_t is defined as unsigned long, then convertible_int("foobar_t") would return “unsigned long”, and define these macros:
#define TYPEOF_FOOBAR_T unsigned long #define FOOBART2NUM ULONG2NUM #define NUM2FOOBART NUM2ULONG