Results for: "tally"

Returns a hash containing the counts of equal elements:

• Each key is an element of self.

• Each value is the number elements equal to that key.

With no argument:

%w[a b c b c a c b].tally # => {"a"=>2, "b"=>3, "c"=>3}

With a hash argument, that hash is used for the tally (instead of a new hash), and is returned; this may be useful for accumulating tallies across multiple enumerables:

hash = {}
hash = %w[a c d b c a].tally(hash)
hash # => {"a"=>2, "c"=>2, "d"=>1, "b"=>1}
hash = %w[b a z].tally(hash)
hash # => {"a"=>3, "c"=>2, "d"=>1, "b"=>2, "z"=>1}
hash = %w[b a m].tally(hash)
hash # => {"a"=>4, "c"=>2, "d"=>1, "b"=>3, "z"=>1, "m"=> 1}

fatal is an Exception that is raised when Ruby has encountered a fatal error and must exit.

SystemCallError is the base class for all low-level platform-dependent errors.

The errors available on the current platform are subclasses of SystemCallError and are defined in the Errno module.

File.open("does/not/exist")

raises the exception:

Errno::ENOENT: No such file or directory - does/not/exist

Helper methods for both Gem::Installer and Gem::Uninstaller

Response class for Method Not Allowed responses (status code 405).

The request method is not supported for the requested resource.

References:

• Mozilla.

• RFC 9110.

• Wikipedia.

Installs a gem along with all its dependencies from local and remote gems.

Raised when removing a gem with the uninstall command fails

The installer installs the files contained in the .gem into the Gem.home.

Gem::Installer does the work of putting files in all the right places on the filesystem including unpacking the gem into its gem dir, installing the gemspec in the specifications dir, storing the cached gem in the cache dir, and installing either wrappers or symlinks for executables.

The installer invokes pre and post install hooks. Hooks can be added either through a rubygems_plugin.rb file in an installed gem or via a rubygems/defaults/#{RUBY_ENGINE}.rb or rubygems/defaults/operating_system.rb file. See Gem.pre_install and Gem.post_install for details.

An Uninstaller.

The uninstaller fires pre and post uninstall hooks. Hooks can be added either through a rubygems_plugin.rb file in an installed gem or via a rubygems/defaults/#{RUBY_ENGINE}.rb or rubygems/defaults/operating_system.rb file. See Gem.pre_uninstall and Gem.post_uninstall for details.

Mixin methods for install and update options for Gem::Commands

Socket::AncillaryData represents the ancillary data (control information) used by sendmsg and recvmsg system call. It contains socket family, control message (cmsg) level, cmsg type and cmsg data.

Response class for Not Acceptable responses (status code 406).

The requested resource is capable of generating only content that not acceptable according to the Accept headers sent in the request.

References:

• Mozilla.

• RFC 9110.

• Wikipedia.

Response class for Variant Also Negotiates responses (status code 506).

Transparent content negotiation for the request results in a circular reference.

References:

• Mozilla.

• RFC 2295.

• Wikipedia.

Ripper.lex is not guaranteed to lex the entire source document

This class guarantees the whole document is lex-ed by iteratively lexing the document where ripper stopped.

Prism likely doesn’t have the same problem. Once ripper support is removed we can likely reduce the complexity here if not remove the whole concept.

Example usage:

lex = LexAll.new(source: source)
lex.each do |value|
  puts value.line
end