Results for: "Logger"

This method is an alias for http_header, when HTML5 tag maker is inactive.

NOTE: use http_header to create HTTP header blocks, this alias is only provided for backwards compatibility.

Using header with the HTML5 tag maker will create a <header> element.

Creates a date object denoting the given week date.

The week and the day of week should be a negative or a positive number (as a relative week/day from the end of year/week when negative). They should not be zero.

Date.commercial(2001)     #=> #<Date: 2001-01-01 ...>
Date.commercial(2002)     #=> #<Date: 2001-12-31 ...>
Date.commercial(2001,5,6) #=> #<Date: 2001-02-03 ...>

See also ::jd and ::new.

Creates a DateTime object denoting the given week date.

DateTime.commercial(2001) #=> #<DateTime: 2001-01-01T00:00:00+00:00 ...>
DateTime.commercial(2002) #=> #<DateTime: 2001-12-31T00:00:00+00:00 ...>
DateTime.commercial(2001,5,6,4,5,6,'+7')
                          #=> #<DateTime: 2001-02-03T04:05:06+07:00 ...>

Same as Time.utc, but interprets the values in the local time zone.

Time.local(2000,"jan",1,20,15,1)   #=> 2000-01-01 20:15:01 -0600

Converts time to local time (using the local time zone in effect at the creation time of time) modifying the receiver.

If utc_offset is given, it is used instead of the local time.

t = Time.utc(2000, "jan", 1, 20, 15, 1) #=> 2000-01-01 20:15:01 UTC
t.utc?                                  #=> true

t.localtime                             #=> 2000-01-01 14:15:01 -0600
t.utc?                                  #=> false

t.localtime("+09:00")                   #=> 2000-01-02 05:15:01 +0900
t.utc?                                  #=> false

If utc_offset is not given and time is local time, just returns the receiver.

Returns a new Time object representing time in UTC.

t = Time.local(2000,1,1,20,15,1)   #=> 2000-01-01 20:15:01 -0600
t.gmt?                             #=> false
y = t.getgm                        #=> 2000-01-02 02:15:01 UTC
y.gmt?                             #=> true
t == y                             #=> true

Returns a new Time object representing time in UTC.

t = Time.local(2000,1,1,20,15,1)   #=> 2000-01-01 20:15:01 -0600
t.gmt?                             #=> false
y = t.getgm                        #=> 2000-01-02 02:15:01 UTC
y.gmt?                             #=> true
t == y                             #=> true

Floors subsecond to a given precision in decimal digits (0 digits by default). It returns a new Time object. ndigits should be zero or a positive integer.

t = Time.utc(2010,3,30, 5,43,25.123456789r)
t                       #=> 2010-03-30 05:43:25.123456789 UTC
t.floor                 #=> 2010-03-30 05:43:25 UTC
t.floor(0)              #=> 2010-03-30 05:43:25 UTC
t.floor(1)              #=> 2010-03-30 05:43:25.1 UTC
t.floor(2)              #=> 2010-03-30 05:43:25.12 UTC
t.floor(3)              #=> 2010-03-30 05:43:25.123 UTC
t.floor(4)              #=> 2010-03-30 05:43:25.1234 UTC

t = Time.utc(1999,12,31, 23,59,59)
(t + 0.4).floor    #=> 1999-12-31 23:59:59 UTC
(t + 0.9).floor    #=> 1999-12-31 23:59:59 UTC
(t + 1.4).floor    #=> 2000-01-01 00:00:00 UTC
(t + 1.9).floor    #=> 2000-01-01 00:00:00 UTC

t = Time.utc(1999,12,31, 23,59,59)
(t + 0.123456789).floor(4)  #=> 1999-12-31 23:59:59.1234 UTC

Closes the database.

Returns true if the database is closed, false otherwise.

Returns a Hash (not a DBM database) created by using each value in the database as a key, with the corresponding key as its value.

Returns true if the database contains the specified key, false otherwise.

Yields each member value from the struct to the block and returns an Array containing the member values from the struct for which the given block returns a true value (equivalent to Enumerable#select).

Lots = Struct.new(:a, :b, :c, :d, :e, :f)
l = Lots.new(11, 22, 33, 44, 55, 66)
l.select {|v| v.even? }   #=> [22, 44, 66]

Struct#filter is an alias for Struct#select.

Returns the struct members as an array of symbols:

Customer = Struct.new(:name, :address, :zip)
joe = Customer.new("Joe Smith", "123 Maple, Anytown NC", 12345)
joe.members   #=> [:name, :address, :zip]

Reads and returns a character in raw mode.

See IO#raw for details on the parameters.

You must require ‘io/console’ to use this method.

Reads and returns a line without echo back. Prints prompt unless it is nil.

The newline character that terminates the read line is removed from the returned string, see String#chomp!.

You must require ‘io/console’ to use this method.

Returns true if an IO object is in non-blocking mode.

Enables non-blocking mode on a stream when set to true, and blocking mode when set to false.

Yields self in non-blocking mode.

When false is given as an argument, self is yielded in blocking mode. The original mode is restored after the block is executed.

Reads the next “line” from the I/O stream; lines are separated by sep. A separator of nil reads the entire contents, and a zero-length separator reads the input a paragraph at a time (two successive newlines in the input separate paragraphs). The stream must be opened for reading or an IOError will be raised. The line read in will be returned and also assigned to $_. Returns nil if called at end of file. If the first argument is an integer, or optional second argument is given, the returning string would not be longer than the given value in bytes.

File.new("testfile").gets   #=> "This is line one\n"
$_                          #=> "This is line one\n"

File.new("testfile").gets(4)#=> "This"

If IO contains multibyte characters byte then gets(1) returns character entirely:

# Russian characters take 2 bytes
File.write("testfile", "\u{442 435 441 442}")
File.open("testfile") {|f|f.gets(1)} #=> "\u0442"
File.open("testfile") {|f|f.gets(2)} #=> "\u0442"
File.open("testfile") {|f|f.gets(3)} #=> "\u0442\u0435"
File.open("testfile") {|f|f.gets(4)} #=> "\u0442\u0435"

Reads a one-character string from ios. Returns nil if called at end of file.

f = File.new("testfile")
f.getc   #=> "h"
f.getc   #=> "e"

Gets the next 8-bit byte (0..255) from ios. Returns nil if called at end of file.

f = File.new("testfile")
f.getbyte   #=> 84
f.getbyte   #=> 104

Pushes back bytes (passed as a parameter) onto ios, such that a subsequent buffered read will return it. Only one byte may be pushed back before a subsequent read operation (that is, you will be able to read only the last of several bytes that have been pushed back). Has no effect with unbuffered reads (such as IO#sysread).

f = File.new("testfile")   #=> #<File:testfile>
b = f.getbyte              #=> 0x38
f.ungetbyte(b)             #=> nil
f.getbyte                  #=> 0x38

Pushes back one character (passed as a parameter) onto ios, such that a subsequent buffered character read will return it. Only one character may be pushed back before a subsequent read operation (that is, you will be able to read only the last of several characters that have been pushed back). Has no effect with unbuffered reads (such as IO#sysread).

f = File.new("testfile")   #=> #<File:testfile>
c = f.getc                 #=> "8"
f.ungetc(c)                #=> nil
f.getc                     #=> "8"

Closes ios and flushes any pending writes to the operating system. The stream is unavailable for any further data operations; an IOError is raised if such an attempt is made. I/O streams are automatically closed when they are claimed by the garbage collector.

If ios is opened by IO.popen, close sets $?.

Calling this method on closed IO object is just ignored since Ruby 2.3.