class Poor::WhitespaceHandler

Defined in:

whitespace_handler.cr

Constructors

Instance Method Summary

Constructor Detail

def self.new(io : IO) #

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Instance Method Detail

def ensure_ends_with(whitespace : String) #

Ensures that the current pending whitespace ends with the given whitespace string whitespace. Raises if the argument contains non-whitespace characters.


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def read(slice : Bytes) #
Description copied from class IO

Reads at most slice.size bytes from this IO into slice. Returns the number of bytes read, which is 0 if and only if there is no more data to read (so checking for 0 is the way to detect end of file).

io = IO::Memory.new "hello"
slice = Bytes.new(4)
io.read(slice) # => 4
slice          # => Bytes[104, 101, 108, 108]
io.read(slice) # => 1
slice          # => Bytes[111, 101, 108, 108]
io.read(slice) # => 0

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def suppress_separation #

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def write(slice : Bytes) : Nil #
Description copied from class IO

Writes the contents of slice into this IO.

io = IO::Memory.new
slice = Bytes.new(4) { |i| ('a'.ord + i).to_u8 }
io.write(slice)
io.to_s # => "abcd"

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