Mô đun:Chessboard mxn

local p = {}
function chessboard(args, size, rows, cols, rev, trans, lightdark, altprefix, letters, numbers, header, footer, align, clear)
function colchar( col )
return (col ' .. ( num_lt and  or  ) .. 
for k = 1, cols do
res = res .. colchar(rev and (cols - k + 1) or k) .. 
end
res = res ..  .. ( num_lt and  or  ) .. 
return res
end
local letters_tp = letters:match('both') or letters:match('top')
local letters_bt = letters:match('both') or letters:match('bottom')
local numbers_lt = numbers:match('both') or numbers:match('left')
local numbers_rt = numbers:match('both') or numbers:match('right')
local width = cols * size + 2
local flip = lightdark and 1 or 0
if ( numbers_lt ) then width = width + 18 end
if ( numbers_rt ) then width = width + 18 end
local b = 
local caption = 
if ( letters_tp ) then b = b .. letters_row(rev, numbers_lt, numbers_rt, cols) .. '\n' end
for trow = 1,rows do
local row = rev and trow or (rows - trow + 1)
b = b .. 
if ( numbers_lt ) then b = b ..  .. row ..  end
for tcol = 1,cols do
local col = rev and (cols - tcol + 1) or tcol
local idx = cols*(rows - row) + col + 2
if (argsidx == nil) then argsidx = '  ' end
local img = image_square(argsidx:match('%w%w') or , row, col, size, trans, flip, altprefix )
local bg = (((trow + tcol + flip) % 2) == 0) and '#ffce9e' or '#d18b47'
b = b ..  .. img .. 
end
if ( numbers_rt ) then b = b ..  .. row ..  end
end
if ( letters_bt ) then b = b .. letters_row(rev, numbers_lt, numbers_rt, cols) .. '\n' end
if footer:match('^%s*$')
then
else    
caption =  .. footer .. '\n'
end
b = '\n' .. b .. '\n'
if noframe then
return b
else
return 
.. header .. '\n\n' 
.. b .. '\n' .. caption .. 
end

end
function convertFenToArgs( fen )
-- converts FEN notation to an array of positions, offset by 2
local res = {' ', ' '}
-- Loop over rows, which are delimited by /
for srow in string.gmatch("/" .. fen, "/%w+") do
-- Loop over all letters and numbers in the row
for piece in srow:gmatch( "%w" ) do
if (piece:match("%d")) then
-- if a digit
for k=1,piece do
table.insert(res,' ')
end
else 
-- not a digit
local color = piece:match( '%u' ) and 'l' or 'd'
piece = piece:lower()
table.insert(res, piece .. color )
end
end
end
return res
end
function p.board(frame)
local args = frame.args
local pargs = frame:getParent().args
local size = (args.size or pargs.size) or '26'
local reverse = (args.reverse or pargs.reverse or  ):lower() == "true"
local trans = (args.transparent or pargs.transparent or  ):lower() == "true"
local lightdark = (args.lightdark or pargs.lightdark or  ):lower() == "swap"
local altprefix = args.altprefix or pargs.altprefix or 
local rows = args.rows or pargs.rows or 8
local cols = args.cols or pargs.cols or 8
local letters = ( args.letters or pargs.letters or 'both' ):lower() 
local numbers = ( args.numbers or pargs.numbers or 'both' ):lower() 
local header =  mw.ustring.gsub( args2 or pargs2 or , '^%s*(.-)%s*$', '%1' )
local footer = args3 + rows*cols or pargs3 + rows*cols or 
local align = ( args1 or pargs1 or 'tright' ):lower()
local clear = ( args.clear or pargs.clear ) or ( align:match('tright') and 'right' or 'none' )
local noframe = (args.noframe or pargs.noframe or ):lower() == "true"
local fen = args.fen or pargs.fen
size = mw.ustring.match(size, '%d+') or '26' -- remove px from size
if (fen) then
align = ( args.align or pargs.align or 'tright' ):lower()
clear = ( args.clear or pargs.clear ) or ( align:match('tright') and 'right' or 'none' )
header = args.header or pargs.header or 
footer = args.footer or pargs.footer or 
return chessboard(convertFenToArgs( fen ), size, rows, cols, reverse, trans, lightdark, altprefix, letters, numbers, header, footer, align, clear, noframe)
end
if args3 then
return chessboard(args, size, rows, cols, reverse, trans, lightdark, altprefix, letters, numbers, header, footer, align, clear, noframe)
else
return chessboard(pargs, size, rows, cols, reverse, trans, lightdark, altprefix, letters, numbers, header, footer, align, clear, noframe)
end

end
return p