Moduuli:Translitteroija/yhteinen

Tämän moduulin ohjeistuksen voi tehdä sivulle Moduuli:Translitteroija/yhteinen/ohje

local export = {}

function export.log_conversion_table(tbl)
   local row_size = tbl.pseudo_row_length
   local vlen = #tbl / row_size

   mw.log("CONVERSION TABLE:")
   for i = 1, vlen do
      mw.log(i, unpack(tbl, (i - 1) * row_size + 1, (i - 1) * row_size + row_size))
   end

   mw.log("* size:\t", #tbl)
   mw.log("* prefix_max:\t", tbl.prefix_max)
   mw.log("* in_max:\t", tbl.in_max)
   mw.log("* out_max:\t", tbl.out_max)
   mw.log("* pseudo length:", tbl.pseudo_length)
   mw.log("* pseudo row length:", tbl.pseudo_row_length)
   mw.log()
   
end

function export.tostring(tbl, start, length, to_chars)
   local tmp = {}
   local val
   if not start or start < 1 then
      start = 1
   end
   if not length or start + length - 1 > #tbl then
      length = #tbl - start + 1
   end
   
   for i, val in ipairs(tbl) do
      if i >= start and i <= start + length - 1 then
	 if val == nil then
	    tmp[i - start + 1] = 0
	 else
	    tmp[i - start + 1] = val
	 end
      elseif i > start + length - 1 then
	 break
      end
   end

   if to_chars then
      return table.concat(tmp, ", ") .. ' "' .. string.char(unpack(tmp)) .. '"'
   else
      return table.concat(tmp, ", ")
   end
end

-- Huom. vaikka size olisi isompi tekee aina korkeintaan 4-tavuisen
function export.get_index_key(buffer, row_offset, col_offset, size)
   --tostring(buffer, row_offset + col_offset, row_offset + col_offset - 1, true)
   local key = 0
   local cell_offset = row_offset + col_offset - 1

   if size > 0 then
      key = buffer[cell_offset + 0] * 256 * 256 * 256
   end

   if size > 1 then
      key = key + buffer[cell_offset + 1] * 256 * 256
   end

   if size > 2 then
      key = key + buffer[cell_offset + 2] * 256
   end

   if size > 3 then
      key = key + buffer[cell_offset + 3]
   end

   return key
end



return export