Returns the major part of File_Stat#rdev or nil.
File.stat("/dev/fd1").rdev_major #=> 2 File.stat("/dev/tty").rdev_major #=> 5
Returns the minor part of File_Stat#rdev or nil.
File.stat("/dev/fd1").rdev_minor #=> 1 File.stat("/dev/tty").rdev_minor #=> 0
Returns true if stat is writable by the real user id of this process.
File.stat("testfile").writable_real? #=> true
If stat is writable by others, returns an integer representing the file permission bits of stat. Returns nil otherwise. The meaning of the bits is platform dependent; on Unix systems, see stat(2).
m = File.stat("/tmp").world_writable? #=> 511 sprintf("%o", m) #=> "777"
Same as executable?, but tests using the real owner of the process.
Read a chunk or all of the buffer into a string, in the specified encoding. If no encoding is provided Encoding::BINARY is used.
buffer = IO::Buffer.for('test') buffer.get_string # => "test" buffer.get_string(2) # => "st" buffer.get_string(2, 1) # => "s"
Efficiently copy from a source String into the buffer, at offset using memcpy.
buf = IO::Buffer.new(8) # => # #<IO::Buffer 0x0000557412714a20+8 INTERNAL> # 0x00000000 00 00 00 00 00 00 00 00 ........ # set buffer starting from offset 1, take 2 bytes starting from string's # second buf.set_string('test', 1, 2, 1) # => 2 buf # => # #<IO::Buffer 0x0000557412714a20+8 INTERNAL> # 0x00000000 00 65 73 00 00 00 00 00 .es.....
See also copy for examples of how buffer writing might be used for changing associated strings and files.
Returns serialized iseq binary format data as a String object. A corresponding iseq object is created by RubyVM::InstructionSequence.load_from_binary() method.
String extra_data will be saved with binary data. You can access this data with RubyVM::InstructionSequence.load_from_binary_extra_data(binary).
Note that the translated binary data is not portable. You can not move this binary data to another machine. You can not use the binary data which is created by another version/another architecture of Ruby.
Returns the number of the first source line where the instruction sequence was loaded from.
For example, using irb:
iseq = RubyVM::InstructionSequence.compile('num = 1 + 2') #=> <RubyVM::InstructionSequence:<compiled>@<compiled>> iseq.first_lineno #=> 1
Returns the new Hash suitable for pattern matching containing only the keys specified as an argument.
Returns the row as a CSV String. Headers are not included:
source = "Name,Value\nfoo,0\nbar,1\nbaz,2\n" table = CSV.parse(source, headers: true) row = table[0] row.to_csv # => "foo,0\n"
Returns the table as CSV string. See Options for Generating.
Defaults option write_headers to true:
source = "Name,Value\nfoo,0\nbar,1\nbaz,2\n" table = CSV.parse(source, headers: true) table.to_csv # => "Name,Value\nfoo,0\nbar,1\nbaz,2\n"
Omits the headers if option write_headers is given as false (see {Option write_headers}):
table.to_csv(write_headers: false) # => "foo,0\nbar,1\nbaz,2\n"
Limit rows if option limit is given like 2:
table.to_csv(limit: 2) # => "Name,Value\nfoo,0\nbar,1\n"
Returns a human readable string that contains corrections. This formatter is designed to be less verbose to not take too much screen space while being helpful enough to the user.
@example
formatter = DidYouMean::Formatter.new # displays suggestions in two lines with the leading empty line puts formatter.message_for(["methods", "method"]) Did you mean? methods method # => nil # displays an empty line puts formatter.message_for([]) # => nil
Returns a human readable string that contains corrections. This formatter is designed to be less verbose to not take too much screen space while being helpful enough to the user.
@example
formatter = DidYouMean::Formatter.new # displays suggestions in two lines with the leading empty line puts formatter.message_for(["methods", "method"]) Did you mean? methods method # => nil # displays an empty line puts formatter.message_for([]) # => nil
Returns a human readable string that contains corrections. This formatter is designed to be less verbose to not take too much screen space while being helpful enough to the user.
@example
formatter = DidYouMean::Formatter.new # displays suggestions in two lines with the leading empty line puts formatter.message_for(["methods", "method"]) Did you mean? methods method # => nil # displays an empty line puts formatter.message_for([]) # => nil