Results for: "OptionParser"

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A Location object representing the location of this token in the source.

Recursively walk dependencies of this spec, executing the block for each hop.

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Example:

combination([:a, :b, :c, :d])
# => [[:a], [:b], [:c], [:d], [:a, :b], [:a, :c], [:a, :d], [:b, :c], [:b, :d], [:c, :d], [:a, :b, :c], [:a, :b, :d], [:a, :c, :d], [:b, :c, :d], [:a, :b, :c, :d]]

If a block is given, it prints out each of the elements encountered. Block parameters are (in that order):

Example

der = File.binread('asn1data.der')
OpenSSL::ASN1.traverse(der) do | depth, offset, header_len, length, constructed, tag_class, tag|
  puts "Depth: #{depth} Offset: #{offset} Length: #{length}"
  puts "Header length: #{header_len} Tag: #{tag} Tag class: #{tag_class} Constructed: #{constructed}"
end

Reads at most maxlen bytes from the stream. If buf is provided it must reference a string which will receive the data.

See IO#readpartial for full details.

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returns a charset parameter in Content-Type field. It is downcased for canonicalization.

If charset parameter is not given but a block is given, the block is called and its result is returned. It can be used to guess charset.

If charset parameter and block is not given, nil is returned except text type. In that case, “utf-8” is returned as defined by RFC6838 4.2.1

Gets various OpenSSL options.

Sets various OpenSSL options. The options are a bit field and can be combined with the bitwise OR operator (|). Available options are defined as constants in OpenSSL::SSL that begin with OP_.

For backwards compatibility, passing nil has the same effect as passing OpenSSL::SSL::OP_ALL.

See also man page SSL_CTX_set_options(3).

Returns a new array that is the union of the elements of self and all given arrays other_arrays; items are compared using eql?:

[0, 1, 2, 3].union([4, 5], [6, 7]) # => [0, 1, 2, 3, 4, 5, 6, 7]

Removes duplicates (preserving the first found):

[0, 1, 1].union([2, 1], [3, 1]) # => [0, 1, 2, 3]

Preserves order (preserving the position of the first found):

[3, 2, 1, 0].union([5, 3], [4, 2]) # => [3, 2, 1, 0, 5, 4]

With no arguments given, returns a copy of self.

Related: see Methods for Combining.

Inserts the given objects as elements of self; returns self.

When index is non-negative, inserts objects before the element at offset index:

a = ['a', 'b', 'c']     # => ["a", "b", "c"]
a.insert(1, :x, :y, :z) # => ["a", :x, :y, :z, "b", "c"]

Extends the array if index is beyond the array (index >= self.size):

a = ['a', 'b', 'c']     # => ["a", "b", "c"]
a.insert(5, :x, :y, :z) # => ["a", "b", "c", nil, nil, :x, :y, :z]

When index is negative, inserts objects after the element at offset index + self.size:

a = ['a', 'b', 'c']      # => ["a", "b", "c"]
a.insert(-2, :x, :y, :z) # => ["a", "b", :x, :y, :z, "c"]

With no objects given, does nothing:

a = ['a', 'b', 'c'] # => ["a", "b", "c"]
a.insert(1)         # => ["a", "b", "c"]
a.insert(50)        # => ["a", "b", "c"]
a.insert(-50)       # => ["a", "b", "c"]

Raises IndexError if objects are given and index is negative and out of range.

Related: see Methods for Assigning.

Returns the element from self found by a binary search, or nil if the search found no suitable element.

See Binary Searching.

Related: see Methods for Fetching.

Returns self if self is not a zero value, nil otherwise; uses method zero? for the evaluation.

The returned self allows the method to be chained:

a = %w[z Bb bB bb BB a aA Aa AA A]
a.sort {|a, b| (a.downcase <=> b.downcase).nonzero? || a <=> b }
# => ["A", "a", "AA", "Aa", "aA", "BB", "Bb", "bB", "bb", "z"]

Of the Core and Standard Library classes, Integer, Float, Rational, and Complex use this implementation.

Related: zero?

Extracts data from self.

If block is not given, forming objects that become the elements of a new array, and returns that array. Otherwise, yields each object.

See Packed Data.

Like String#unpack, but unpacks and returns only the first extracted object. See Packed Data.

Inserts the given other_string into self; returns self.

If the Integer index is positive, inserts other_string at offset index:

'foo'.insert(1, 'bar') # => "fbaroo"

If the Integer index is negative, counts backward from the end of self and inserts other_string at offset index+1 (that is, after self[index]):

'foo'.insert(-2, 'bar') # => "fobaro"

Returns an array of the characters in self:

'hello'.chars     # => ["h", "e", "l", "l", "o"]
'тест'.chars      # => ["т", "е", "с", "т"]
'こんにちは'.chars # => ["こ", "ん", "に", "ち", "は"]
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