module SourceMap::VLQ

def self.decode(str)

Returns an Array of Integers.

str - VLQ encoded String

Public: Decode a VLQ string. 
def self.decode(str)
  result = []
  chars = str.split('')
  while chars.any?
    vlq = 0
    shift = 0
    continuation = true
    while continuation
      char = chars.shift
      raise ArgumentError unless char
      digit = BASE64_VALUES[char]
      continuation = false if (digit & VLQ_CONTINUATION_BIT) == 0
      digit &= VLQ_BASE_MASK
      vlq   += digit << shift
      shift += VLQ_BASE_SHIFT
    end
    result << (vlq & 1 == 1 ? -(vlq >> 1) : vlq >> 1)
  end
  result
end