Parse a rational from the string representation.
Clear the reference to the object this is pinning.
Returns true if the reference has been cleared, otherwise returns false.
Generates a cryptographically strong pseudo-random number of bits
.
See also the man page BN_rand(3).
Parses a given string as a blob that contains configuration for OpenSSL
.
Emit a scalar with value
Called when a scalar value
is found. The scalar may have an anchor
, a tag
, be implicitly plain
or implicitly quoted
value
is the string value of the scalar anchor
is an associated anchor or nil tag
is an associated tag or nil plain
is a boolean value quoted
is a boolean value style
is an integer indicating the string style
See the constants in Psych::Nodes::Scalar
for the possible values of style
Here is a YAML
document that exercises most of the possible ways this method can be called:
--- - !str "foo" - &anchor fun - many lines - | many newlines
The above YAML
document contains a list with four strings. Here are the parameters sent to this method in the same order:
# value anchor tag plain quoted style ["foo", nil, "!str", false, false, 3 ] ["fun", "anchor", nil, true, false, 1 ] ["many lines", nil, nil, true, false, 1 ] ["many\nnewlines\n", nil, nil, false, true, 4 ]
Parse the YAML
document contained in yaml
. Events will be called on the handler set on the parser instance.
See Psych::Parser
and Psych::Parser#handler
Returns a Psych::Parser::Mark
object that contains line, column, and index information.
Emit a scalar with value
, anchor
, tag
, and a plain
or quoted
string type with style
.
Starts the parser. init
is a data accumulator and is passed to the next event handler (as of Enumerable#inject
).
Returns array of WIN32OLE::Variable
objects which represent variables defined in OLE class.
tobj = WIN32OLE::Type.new('Microsoft Excel 9.0 Object Library', 'XlSheetType') vars = tobj.variables vars.each do |v| puts "#{v.name} = #{v.value}" end The result of above sample script is follows: xlChart = -4109 xlDialogSheet = -4116 xlExcel4IntlMacroSheet = 4 xlExcel4MacroSheet = 3 xlWorksheet = -4167
Returns the number which represents variable kind.
tobj = WIN32OLE::Type.new('Microsoft Excel 9.0 Object Library', 'XlSheetType') variables = tobj.variables variables.each do |variable| puts "#{variable.name} #{variable.varkind}" end The result of above script is following: xlChart 2 xlDialogSheet 2 xlExcel4IntlMacroSheet 2 xlExcel4MacroSheet 2 xlWorksheet 2
Returns OLE variant type.
obj = WIN32OLE::Variant.new("string") obj.vartype # => WIN32OLE::VARIANT::VT_BSTR
Creates a GzipReader
or GzipWriter
associated with io
, passing in any necessary extra options, and executes the block with the newly created object just like File.open
.
The GzipFile
object will be closed automatically after executing the block. If you want to keep the associated IO
object open, you may call Zlib::GzipFile#finish
method in the block.
Reads at most maxlen bytes from the gzipped stream but it blocks only if gzipreader has no data immediately available. If the optional outbuf argument is present, it must reference a String
, which will receive the data. It raises EOFError
on end of file.
See Zlib::GzipReader
documentation for a description.
Returns true
if the file is a character device, false
if it isn’t or if the operating system doesn’t support this feature.
File.stat("/dev/tty").chardev? #=> true
Transfers ownership of the underlying memory to a new buffer, causing the current buffer to become uninitialized.
buffer = IO::Buffer.new('test') other = buffer.transfer other # => # #<IO::Buffer 0x00007f136a15f7b0+4 SLICE> # 0x00000000 74 65 73 74 test buffer # => # #<IO::Buffer 0x0000000000000000+0 NULL> buffer.null? # => true