This method wraps a String you provide, or an empty default String, in a CSV
object which is passed to the provided block. You can use the block to append CSV
rows to the String and when the block exits, the final String will be returned.
Note that a passed String is modified by this method. Call dup() before passing if you need a new String.
The options
parameter can be anything CSV::new()
understands. This method understands an additional :encoding
parameter when not passed a String to set the base Encoding
for the output. CSV
needs this hint if you plan to output non-ASCII compatible data.
Add separator in summary.
Returns the parameter information of this proc.
prc = lambda{|x, y=42, *other|} prc.parameters #=> [[:req, :x], [:opt, :y], [:rest, :other]]
Returns the parameter information of this method.
def foo(bar); end method(:foo).parameters #=> [[:req, :bar]] def foo(bar, baz, bat, &blk); end method(:foo).parameters #=> [[:req, :bar], [:req, :baz], [:req, :bat], [:block, :blk]] def foo(bar, *args); end method(:foo).parameters #=> [[:req, :bar], [:rest, :args]] def foo(bar, baz, *args, &blk); end method(:foo).parameters #=> [[:req, :bar], [:req, :baz], [:rest, :args], [:block, :blk]]
Returns the parameter information of this method.
def foo(bar); end method(:foo).parameters #=> [[:req, :bar]] def foo(bar, baz, bat, &blk); end method(:foo).parameters #=> [[:req, :bar], [:req, :baz], [:req, :bat], [:block, :blk]] def foo(bar, *args); end method(:foo).parameters #=> [[:req, :bar], [:rest, :args]] def foo(bar, baz, *args, &blk); end method(:foo).parameters #=> [[:req, :bar], [:req, :baz], [:rest, :args], [:block, :blk]]
Generate a JSON
document from the Ruby data structure obj and return it. state is * a JSON::State object,
or a Hash
like object (responding to to_hash),
an object convertible into a hash by a to_h method,
that is used as or to configure a State object.
It defaults to a state object, that creates the shortest possible JSON
text in one line, checks for circular data structures and doesn’t allow NaN
, Infinity
, and -Infinity.
A state hash can have the following keys:
indent: a string used to indent levels (default: ”),
space: a string that is put after, a : or , delimiter (default: ”),
space_before: a string that is put before a : pair delimiter (default: ”),
object_nl: a string that is put at the end of a JSON
object (default: ”),
array_nl: a string that is put at the end of a JSON
array (default: ”),
allow_nan: true if NaN
, Infinity
, and -Infinity should be generated, otherwise an exception is thrown if these values are encountered. This options defaults to false.
max_nesting: The maximum depth of nesting allowed in the data structures from which JSON
is to be generated. Disable depth checking with :max_nesting => false, it defaults to 100.
See also the fast_generate
for the fastest creation method with the least amount of sanity checks, and the pretty_generate
method for some defaults for pretty output.
Changes the parameters of the deflate stream to allow changes between different types of data that require different types of compression. Any unprocessed data is flushed before changing the params.
See Zlib::Deflate.new
for a description of level
and strategy
.
Called by the TupleSpace
to check if the object is still alive.
Reset the expiry time according to sec_or_renewer
.
nil
it is set to expire in the far future.
true
it has expired.
Numeric
it will expire in that many seconds.
Otherwise the argument refers to some kind of renewer object which will reset its expiry time.
Ensure path
and path with extension
are identical.
Checks if URI
has a path
Set
all the parameters.
Returns the fractional part of the day.
DateTime.new(2001,2,3,12).day_fraction #=> (1/2)
This method is equivalent to d + n.
This method is equivalent to d >> (n * 12).
Date.new(2001,2,3).next_year #=> #<Date: 2002-02-03 ...> Date.new(2008,2,29).next_year #=> #<Date: 2009-02-28 ...> Date.new(2008,2,29).next_year(4) #=> #<Date: 2012-02-29 ...>
See also Date#>>
.
Returns the size of arguments of the method.
tobj = WIN32OLE_TYPE.new('Microsoft Excel 9.0 Object Library', 'Workbook') method = WIN32OLE_METHOD.new(tobj, 'SaveAs') puts method.size_params # => 11
Returns library name. If the method fails to access library name, WIN32OLERuntimeError
is raised.
tlib = WIN32OLE_TYPELIB.new('Microsoft Excel 9.0 Object Library') tlib.library_name # => Excel
This method is a shortcut for converting a single line of a CSV
String into an Array. Note that if line
contains multiple rows, anything beyond the first row is ignored.
The options
parameter can be anything CSV::new()
understands.
Returns true
if illegal input is handled. See CSV::new
for details.
Stores the indicated separators for later use.
If auto-discovery was requested for @row_sep
, this method will read ahead in the @io
and try to find one. ARGF
, STDIN
, STDOUT
, STDERR
and any stream open for output only with a default @row_sep
of $INPUT_RECORD_SEPARATOR
($/
).
This method also establishes the quoting rules used for CSV
output.
Controls tracing of assignments to global variables. The parameter symbol
identifies the variable (as either a string name or a symbol identifier). cmd (which may be a string or a Proc
object) or block is executed whenever the variable is assigned. The block or Proc
object receives the variable’s new value as a parameter. Also see Kernel::untrace_var
.
trace_var :$_, proc {|v| puts "$_ is now '#{v}'" } $_ = "hello" $_ = ' there'
produces:
$_ is now 'hello' $_ is now ' there'
Removes tracing for the specified command on the given global variable and returns nil
. If no command is specified, removes all tracing for that variable and returns an array containing the commands actually removed.