Closes self for writing; closed-read setting remains unchanged.
Raises IOError if writing is attempted.
Related: StringIO#close, StringIO#close_read.
Returns true if self is closed for reading, false otherwise.
Returns true if self is closed for writing, false otherwise.
Returns the Encoding object that represents the encoding of the file. If the stream is write mode and no encoding is specified, returns nil.
Returns the Encoding of the internal string if conversion is specified. Otherwise returns nil.
This method is defined for backward compatibility.
Scans one byte and returns it. This method is not multibyte character sensitive. See also: getch.
s = StringScanner.new('ab') s.get_byte # => "a" s.get_byte # => "b" s.get_byte # => nil s = StringScanner.new("\244\242".force_encoding("euc-jp")) s.get_byte # => "\xA4" s.get_byte # => "\xA2" s.get_byte # => nil
Defines the constants of OLE Automation server as mod’s constants. The first argument is WIN32OLE object or type library name. If 2nd argument is omitted, the default is WIN32OLE. The first letter of Ruby’s constant variable name is upper case, so constant variable name of WIN32OLE object is capitalized. For example, the ‘xlTop’ constant of Excel is changed to ‘XlTop’ in WIN32OLE. If the first letter of constant variable is not [A-Z], then the constant is defined as CONSTANTS hash element.
module EXCEL_CONST end excel = WIN32OLE.new('Excel.Application') WIN32OLE.const_load(excel, EXCEL_CONST) puts EXCEL_CONST::XlTop # => -4160 puts EXCEL_CONST::CONSTANTS['_xlDialogChartSourceData'] # => 541 WIN32OLE.const_load(excel) puts WIN32OLE::XlTop # => -4160 module MSO end WIN32OLE.const_load('Microsoft Office 9.0 Object Library', MSO) puts MSO::MsoLineSingle # => 1
If obj is a Hash object, returns obj.
Otherwise if obj responds to :to_hash, calls obj.to_hash and returns the result.
Returns nil if obj does not respond to :to_hash
Raises an exception unless obj.to_hash returns a Hash object.
Reads at most maxlen bytes from the ARGF stream in non-blocking mode.
Returns the external encoding for files read from ARGF as an Encoding object. The external encoding is the encoding of the text as stored in a file. Contrast with ARGF.internal_encoding, which is the encoding used to represent this text within Ruby.
To set the external encoding use ARGF.set_encoding.
For example:
ARGF.external_encoding #=> #<Encoding:UTF-8>
Returns the internal encoding for strings read from ARGF as an Encoding object.
If ARGF.set_encoding has been called with two encoding names, the second is returned. Otherwise, if Encoding.default_external has been set, that value is returned. Failing that, if a default external encoding was specified on the command-line, that value is used. If the encoding is unknown, nil is returned.
Returns the value that determines whether unconverted fields are to be available; used for parsing; see {Option unconverted_fields}:
CSV.new('').unconverted_fields? # => nil
Returns the value that determines whether headers are to be returned; used for parsing; see {Option return_headers}:
CSV.new('').return_headers? # => false
Returns the value that determines whether headers are to be written; used for generating; see {Option write_headers}:
CSV.new('').write_headers? # => nil
Returns the value that determines whether illegal input is to be handled; used for parsing; see {Option liberal_parsing}:
CSV.new('').liberal_parsing? # => false
Returns true if the next row to be read is a header row; false otherwise.
Without headers:
string = "foo,0\nbar,1\nbaz,2\n" csv = CSV.new(string) csv.header_row? # => false
With headers:
string = "Name,Value\nfoo,0\nbar,1\nbaz,2\n" csv = CSV.new(string, headers: true) csv.header_row? # => true csv.shift # => #<CSV::Row "Name":"foo" "Value":"0"> csv.header_row? # => false
Raises an exception if the source is not opened for reading:
string = "foo,0\nbar,1\nbaz,2\n" csv = CSV.new(string) csv.close # Raises IOError (not opened for reading) csv.header_row?
Processes fields with @converters, or @header_converters if headers is passed as true, returning the converted field set. Any converter that changes the field into something other than a String halts the pipeline of conversion for that field. This is primarily an efficiency shortcut.
Reinitializes delegation from a serialized object.
Allow connections from Socket soc?
Allow connections from addrinfo addr? It must be formatted like Socket#peeraddr:
["AF_INET", 10, "lc630", "192.0.2.1"]