Create a new ParametersNode
node.
Get the indentation level.
Set
the indentation level to level
. The level must be less than 10 and greater than 1.
Reads at most maxlen bytes from the gzipped stream but it blocks only if gzipreader has no data immediately available. If the optional outbuf argument is present, it must reference a String
, which will receive the data. It raises EOFError
on end of file.
A Location
instance that represents the location of this node in the source.
A Location
object representing the location of this token in the source.
Recursively walk dependencies of this spec, executing the block
for each hop.
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):
depth: The recursion depth, plus one with each constructed value being encountered (Integer
)
offset: Current byte offset (Integer
)
header length: Combined length in bytes of the Tag and Length headers. (Integer
)
length: The overall remaining length of the entire data (Integer
)
constructed: Whether this value is constructed or not (Boolean
)
tag_class: Current tag class (Symbol
)
tag: The current tag number (Integer
)
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.
Returns whether the form contained multipart/form-data
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