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# File digest/sha2/lib/sha2.rb, line 26 def initialize(bitlen = 256) case bitlen when 256 @sha2 = Digest::SHA256.new when 384 @sha2 = Digest::SHA384.new when 512 @sha2 = Digest::SHA512.new else raise ArgumentError, "unsupported bit length: %s" % bitlen.inspect end @bitlen = bitlen end

# File minitest/unit.rb, line 88 def self.diff @diff = if RbConfig::CONFIG['host_os'] =~ /mswin|mingw/ then "diff.exe -u" else if system("gdiff", __FILE__, __FILE__) "gdiff -u" # solaris and kin suck elsif system("diff", __FILE__, __FILE__) "diff -u" else nil end end unless defined? @diff @diff end

Returns a new array populated with the given objects. Array.[]( 1, 'a', /^A/ ) # => [1, "a", /^A/] Array[ 1, 'a', /^A/ ] # => [1, "a", /^A/] [ 1, 'a', /^A/ ] # => [1, "a", /^A/] static VALUE rb_ary_s_create(int argc, VALUE *argv, VALUE klass) { VALUE ary = ary_new(klass, argc); if (argc > 0 && argv) { ary_memcpy(ary, 0, argc, argv); ARY_SET_LEN(ary, argc); } return ary; } Returns a new array. In t

OpenURI is an easy-to-use wrapper for Net::HTTP, Net::HTTPS and Net::FTP. Example¶ ↑ It is possible to open an http, https or ftp URL as though it were a file: open("http://www.ruby-lang.org/") {|f| f.each_line {|line| p line} } The opened file has several getter methods for its meta-information, as follows, since it is extended by OpenURI::Meta. open("http://www.ruby-lang.org/en") {|f| f.each_lin

CARGF CArgumentError CArray CBasicObject CBignum CBinding CClass MComparable CComplex CComplex::compatible CContinuation CData CDir CENV CEOFError CEncoding CEncoding::CompatibilityError CEncoding::Converter CEncoding::ConverterNotFoundError CEncoding::InvalidByteSequenceError CEncoding::UndefinedConversionError CEncodingError MEnumerable CEnumerator CEnumerator::Generator CEnumerator::Lazy CEnume

::base64 generates a random base64 string. The argument n specifies the length of the random length. The length of the result string is about 4/3 of n. If n is not specified, 16 is assumed. It may be larger in future. The result may contain A-Z, a-z, 0-9, “+”, “/” and “=”. p SecureRandom.base64 #=> "/2BuBuLf3+WfSKyQbRcc/A==" p SecureRandom.base64 #=> "6BbW0pxO0YENxn38HMUbcQ==" If secure random num

Maintenance of Ruby 2.0.0 ended on February 24, 2016. Read more A Regexp holds a regular expression, used to match a pattern against strings. Regexps are created using the /.../ and %r{...} literals, and by the Regexp::new constructor. Regular expressions (regexps) are patterns which describe the contents of a string. They're used for testing whether a string contains a given pattern, or extractin

CA CA::B CAddrinfo CArgumentError CArray CBase CBasicSocket CBinTest_MrubyBinDebugger MCRubyExtension MComparable CComplex CComplexLikeNumeric CCustomExp CDerived CEOFError MEnumerable CEnumerator CEnumerator::Chain CEnumerator::Generator CEnumerator::Lazy CEnumerator::Yielder MErrno CFile MFile::Constants CFile::FileError CFile::NoFileError CFile::PermissionError CFile::UnableToStat CFixnum MFloa

The Enumerable mixin provides collection classes with several traversal and searching methods, and with the ability to sort. The class must provide a method each, which yields successive members of the collection. If Enumerable#max, #min, or #sort is used, the objects in the collection must also implement a meaningful <=> operator, as these methods rely on an ordering between members of the collec

A class that provides the functionality of Kernel#set_trace_func in a nice Object-Oriented API. Example¶ ↑ We can use TracePoint to gather information specifically for exceptions: trace = TracePoint.new(:raise) do |tp| p [tp.lineno, tp.event, tp.raised_exception] end #=> #<TracePoint:0x007f786a452448> trace.enable #=> #<TracePoint:0x007f786a452448> 0 / 0 #=> [5, :raise, #<ZeroDivisionError: divide

This class provides a complete interface to CSV files and data. It offers tools to enable you to read and write to and from Strings or IO objects, as needed. Reading¶ ↑ From a File¶ ↑ A Line at a Time¶ ↑ CSV.foreach("path/to/file.csv") do |row| # use row here... end All at Once¶ ↑ arr_of_arrs = CSV.read("path/to/file.csv") From a String¶ ↑ A Line at a Time¶ ↑ CSV.parse("CSV,data,String") do |row|

This class provides a complete interface to CSV files and data. It offers tools to enable you to read and write to and from Strings or IO objects, as needed. Reading¶ ↑ From a File¶ ↑ A Line at a Time¶ ↑ CSV.foreach("path/to/file.csv") do |row| # use row here... end All at Once¶ ↑ arr_of_arrs = CSV.read("path/to/file.csv") From a String¶ ↑ A Line at a Time¶ ↑ CSV.parse("CSV,data,String") do |row|

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 St

The Enumerable mixin provides collection classes with several traversal and searching methods, and with the ability to sort. The class must provide a method each, which yields successive members of the collection. If Enumerable#max, #min, or #sort is used, the objects in the collection must also implement a meaningful <=> operator, as these methods rely on an ordering between members of the collec

CARGF CArgumentError CArray CBasicObject CBignum CBinding CClass MComparable CComplex CContinuation CData CDir CENV CEOFError CEncoding CEncoding::CompatibilityError CEncoding::Converter CEncoding::ConverterNotFoundError CEncoding::InvalidByteSequenceError CEncoding::UndefinedConversionError CEncodingError MEnumerable CEnumerator CEnumerator::Generator CEnumerator::Yielder MErrno CException CFalse

CArgumentError CArray CBignum CBinding CClass MComparable CContinuation CData CDir CEOFError MEnumerable CEnumerable::Enumerator MErrno CException CFalseClass CFile MFile::Constants CFile::Stat MFileTest CFixnum CFloat CFloatDomainError MGC CHash CIO CIOError CIndexError CInteger CInterrupt MKernel CLoadError CLocalJumpError MMarshal CMatchData MMath CMethod CModule CNameError CNameError::message

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Class and Module Index ARGF ArgumentError Array BasicObject Binding Class ClosedQueueError Comparable Complex Continuation Data Dir ENV EOFError Encoding Encoding::CompatibilityError Encoding::Converter Encoding::ConverterNotFoundError Encoding::InvalidByteSequenceError Encoding::UndefinedConversionError EncodingError Enumerable Enumerator Enumerator::ArithmeticSequence Enumerator::Chain Enumerato

Class and Module Index ARGF ArgumentError Array BasicObject Binding Class ClosedQueueError Comparable Complex Continuation Data Dir ENV EOFError Encoding Encoding::CompatibilityError Encoding::Converter Encoding::ConverterNotFoundError Encoding::InvalidByteSequenceError Encoding::UndefinedConversionError EncodingError Enumerable Enumerator Enumerator::ArithmeticSequence Enumerator::Chain Enumerato