Returns x/y or arg as a Rational.
Rational(2, 3) #=> (2/3) Rational(5) #=> (5/1) Rational(0.5) #=> (1/2) Rational(0.3) #=> (5404319552844595/18014398509481984) Rational("2/3") #=> (2/3) Rational("0.3") #=> (3/10) Rational("10 cents") #=> ArgumentError Rational(nil) #=> TypeError Rational(1, nil) #=> TypeError Rational("10 cents", exception: false) #=> nil
Syntax of the string form:
string form = extra spaces , rational , extra spaces ;
rational = [ sign ] , unsigned rational ;
unsigned rational = numerator | numerator , "/" , denominator ;
numerator = integer part | fractional part | integer part , fractional part ;
denominator = digits ;
integer part = digits ;
fractional part = "." , digits , [ ( "e" | "E" ) , [ sign ] , digits ] ;
sign = "-" | "+" ;
digits = digit , { digit | "_" , digit } ;
digit = "0" | "1" | "2" | "3" | "4" | "5" | "6" | "7" | "8" | "9" ;
extra spaces = ? \s* ? ;
See also String#to_r.
Allows setting the gem path searcher. This method is available when requiring ‘rubygems/test_case’
Issues an OPTS command
name Should be the name of the option to set
params is any optional parameters to supply with the option
example: option(‘UTF8’, ‘ON’) => ‘OPTS UTF8 ON’
Sends a OPTIONS request to the path and gets a response, as an HTTPResponse object.
Create on demand parser.
Returns the parser to be used.
Unless a URI::Parser is defined, DEFAULT_PARSER is used.
Merge a set of command options with the set of default options (without modifying the default option hash).
Add the –prerelease option to the option parser.
Run UDP/IP server loop on the given sockets.
The return value of Socket.udp_server_sockets is appropriate for the argument.
It calls the block for each message received.
Parses a given string as a blob that contains configuration for OpenSSL.
If the source of the IO is a file, then consider using parse_config.
Get the names of all sections in the current configuration
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
Starts the parser. init is a data accumulator and is passed to the next event handler (as of Enumerable#inject).
A detailed description of this gem. See also summary
Set the version to version, potentially also setting required_rubygems_version if version indicates it is a prerelease.
Parse a raw cookie string into a hash of cookie-name=>Cookie pairs.
cookies = CGI::Cookie.parse("raw_cookie_string") # { "name1" => cookie1, "name2" => cookie2, ... }
Create a DRbUnknownError exception containing this object.
Turns on net/http 1.2 (Ruby 1.8) features. Defaults to ON in Ruby 1.8 or later.