method

set_range

v1_8_7_330 - Show latest stable - 0 notes - Class: Net::HTTPHeader

set_range(r, e = nil) public

Set Range: header from Range (arg r) or beginning index and length from it (arg idx&len).

req.range = (0..1023)
req.set_range 0, 1023

Show source

# File lib/net/http.rb, line 1304
    def set_range(r, e = nil)
      unless r
        @header.delete 'range'
        return r
      end
      r = (r...r+e) if e
      case r
      when Numeric
        n = r.to_i
        rangestr = (n > 0 ? "0-#{n-1}" : "-#{-n}")
      when Range
        first = r.first
        last = r.last
        last -= 1 if r.exclude_end?
        if last == -1
          rangestr = (first > 0 ? "#{first}-" : "-#{-first}")
        else
          raise HTTPHeaderSyntaxError, 'range.first is negative' if first < 0
          raise HTTPHeaderSyntaxError, 'range.last is negative' if last < 0
          raise HTTPHeaderSyntaxError, 'must be .first < .last' if first > last
          rangestr = "#{first}-#{last}"
        end
      else
        raise TypeError, 'Range/Integer is required'
      end
      @header['range'] = ["bytes=#{rangestr}"]
      r
    end

set_range

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