Results for: "uri"

Returns an array containing the items in enum.

(1..7).to_a                       #=> [1, 2, 3, 4, 5, 6, 7]
{ 'a'=>1, 'b'=>2, 'c'=>3 }.to_a   #=> [["a", 1], ["b", 2], ["c", 3]]

require 'prime'
Prime.entries 10                  #=> [2, 3, 5, 7]

Returns true if the named file is writable by the effective user and group id of this process. See eaccess(3).

Note that some OS-level security features may cause this to return true even though the file is not writable by the effective user/group.

Returns the time used to execute the given block as a Benchmark::Tms object. Takes label option.

require 'benchmark'

n = 1000000

time = Benchmark.measure do
  n.times { a = "1" }
end
puts time

Generates:

0.220000   0.000000   0.220000 (  0.227313)

Returns the time used to execute the given block as a Benchmark::Tms object. Takes label option.

require 'benchmark'

n = 1000000

time = Benchmark.measure do
  n.times { a = "1" }
end
puts time

Generates:

0.220000   0.000000   0.220000 (  0.227313)

Open3.capture3 captures the standard output and the standard error of a command.

stdout_str, stderr_str, status = Open3.capture3([env,] cmd... [, opts])

The arguments env, cmd and opts are passed to Open3.popen3 except opts[:stdin_data] and opts[:binmode]. See Process.spawn.

If opts[:stdin_data] is specified, it is sent to the command’s standard input.

If opts[:binmode] is true, internal pipes are set to binary mode.

Examples:

# dot is a command of graphviz.
graph = <<'End'
  digraph g {
    a -> b
  }
End
drawn_graph, dot_log = Open3.capture3("dot -v", :stdin_data=>graph)

o, e, s = Open3.capture3("echo abc; sort >&2", :stdin_data=>"foo\nbar\nbaz\n")
p o #=> "abc\n"
p e #=> "bar\nbaz\nfoo\n"
p s #=> #<Process::Status: pid 32682 exit 0>

# generate a thumbnail image using the convert command of ImageMagick.
# However, if the image is really stored in a file,
# system("convert", "-thumbnail", "80", "png:#{filename}", "png:-") is better
# because of reduced memory consumption.
# But if the image is stored in a DB or generated by the gnuplot Open3.capture2 example,
# Open3.capture3 should be considered.
#
image = File.read("/usr/share/openclipart/png/animals/mammals/sheep-md-v0.1.png", :binmode=>true)
thumbnail, err, s = Open3.capture3("convert -thumbnail 80 png:- png:-", :stdin_data=>image, :binmode=>true)
if s.success?
  STDOUT.binmode; print thumbnail
end

Open3.capture3 captures the standard output and the standard error of a command.

stdout_str, stderr_str, status = Open3.capture3([env,] cmd... [, opts])

The arguments env, cmd and opts are passed to Open3.popen3 except opts[:stdin_data] and opts[:binmode]. See Process.spawn.

If opts[:stdin_data] is specified, it is sent to the command’s standard input.

If opts[:binmode] is true, internal pipes are set to binary mode.

Examples:

# dot is a command of graphviz.
graph = <<'End'
  digraph g {
    a -> b
  }
End
drawn_graph, dot_log = Open3.capture3("dot -v", :stdin_data=>graph)

o, e, s = Open3.capture3("echo abc; sort >&2", :stdin_data=>"foo\nbar\nbaz\n")
p o #=> "abc\n"
p e #=> "bar\nbaz\nfoo\n"
p s #=> #<Process::Status: pid 32682 exit 0>

# generate a thumbnail image using the convert command of ImageMagick.
# However, if the image is really stored in a file,
# system("convert", "-thumbnail", "80", "png:#{filename}", "png:-") is better
# because of reduced memory consumption.
# But if the image is stored in a DB or generated by the gnuplot Open3.capture2 example,
# Open3.capture3 should be considered.
#
image = File.read("/usr/share/openclipart/png/animals/mammals/sheep-md-v0.1.png", :binmode=>true)
thumbnail, err, s = Open3.capture3("convert -thumbnail 80 png:- png:-", :stdin_data=>image, :binmode=>true)
if s.success?
  STDOUT.binmode; print thumbnail
end

Open3.capture2 captures the standard output of a command.

stdout_str, status = Open3.capture2([env,] cmd... [, opts])

The arguments env, cmd and opts are passed to Open3.popen3 except opts[:stdin_data] and opts[:binmode]. See Process.spawn.

If opts[:stdin_data] is specified, it is sent to the command’s standard input.

If opts[:binmode] is true, internal pipes are set to binary mode.

Example:

# factor is a command for integer factorization.
o, s = Open3.capture2("factor", :stdin_data=>"42")
p o #=> "42: 2 3 7\n"

# generate x**2 graph in png using gnuplot.
gnuplot_commands = <<"End"
  set terminal png
  plot x**2, "-" with lines
  1 14
  2 1
  3 8
  4 5
  e
End
image, s = Open3.capture2("gnuplot", :stdin_data=>gnuplot_commands, :binmode=>true)

Open3.capture2 captures the standard output of a command.

stdout_str, status = Open3.capture2([env,] cmd... [, opts])

The arguments env, cmd and opts are passed to Open3.popen3 except opts[:stdin_data] and opts[:binmode]. See Process.spawn.

If opts[:stdin_data] is specified, it is sent to the command’s standard input.

If opts[:binmode] is true, internal pipes are set to binary mode.

Example:

# factor is a command for integer factorization.
o, s = Open3.capture2("factor", :stdin_data=>"42")
p o #=> "42: 2 3 7\n"

# generate x**2 graph in png using gnuplot.
gnuplot_commands = <<"End"
  set terminal png
  plot x**2, "-" with lines
  1 14
  2 1
  3 8
  4 5
  e
End
image, s = Open3.capture2("gnuplot", :stdin_data=>gnuplot_commands, :binmode=>true)

Open3.capture2e captures the standard output and the standard error of a command.

stdout_and_stderr_str, status = Open3.capture2e([env,] cmd... [, opts])

The arguments env, cmd and opts are passed to Open3.popen3 except opts[:stdin_data] and opts[:binmode]. See Process.spawn.

If opts[:stdin_data] is specified, it is sent to the command’s standard input.

If opts[:binmode] is true, internal pipes are set to binary mode.

Example:

# capture make log
make_log, s = Open3.capture2e("make")

Open3.capture2e captures the standard output and the standard error of a command.

stdout_and_stderr_str, status = Open3.capture2e([env,] cmd... [, opts])

The arguments env, cmd and opts are passed to Open3.popen3 except opts[:stdin_data] and opts[:binmode]. See Process.spawn.

If opts[:stdin_data] is specified, it is sent to the command’s standard input.

If opts[:binmode] is true, internal pipes are set to binary mode.

Example:

# capture make log
make_log, s = Open3.capture2e("make")

The standard configuration object for gems.

Use the given configuration object (which implements the ConfigFile protocol) as the standard configuration object.

Returns an Array of sources to fetch remote gems from. Uses default_sources if the sources list is empty.

Need to be able to set the sources without calling Gem.sources.replace since that would cause an infinite loop.

DOC: This comment is not documentation about the method itself, it’s more of a code comment about the implementation.

Performs a Miller-Rabin probabilistic primality test with checks iterations. If checks is not specified, a number of iterations is used that yields a false positive rate of at most 2^-80 for random input.

Parameters

• checks - integer

Write data to a registry value named name. When name is nil, write to the ‘default’ value.

type is type value. (see Registry::Constants module) Class of data must be same as which read method returns.

Write value to a registry value named name.

The value type is REG_SZ(write_s), REG_DWORD(write_i), or REG_BINARY(write_bin).

Write value to a registry value named name.

The value type is REG_SZ(write_s), REG_DWORD(write_i), or REG_BINARY(write_bin).

Same as IO.

Same as IO.

Same as IO.

Returns true if stat is writable by the effective user id of this process.

File.stat("testfile").writable?   #=> true

Set whether the Cookie is a secure cookie or not.

val must be a boolean.

Symmetric Householder reduction to tridiagonal form.