# Module:Sports results/Chess

-- Module to build results cross-tables for standings in Chess
-- See documentation for details  
require('strict')  
local p = {}  
-- Other functions
local function get_short_name(s, t, n, ss)
-- return short name if defined
if s and s ~= '' then
return s
end
-- deflag if necessary
if ss and n then
if ss == 'noflag' or ss == 'nocountry' then
n = mw.ustring.gsub(n, '%[%[[Ff][Ii][Ll][Ee]:[^%[%]]*%]%]', '')
n = mw.ustring.gsub(n, '<span>[^<>]*</span>', '')
if ss == 'nocountry' then
n = mw.ustring.gsub(n, '<abbr[^<>]*>[^<>]*</abbr>', '')
n = mw.ustring.gsub(n, '&nbsp;<span[^<>]*>[^<>]*</span>$', '')
end
elseif ss == 'flag' then
n = mw.ustring.gsub(n, '(<span>%s*%[%[[Ff][Ii][Ll][Ee]:[^%[%]]*link=)[^%|%[%]]*(%]%][^<>]*</span>)%s*%[%[([^%[%]%|]*)%|[^%[%]]*%]%]', '%1%3%2')
n = mw.ustring.gsub(n, '.*(<span>%s*%[%[[Ff][Ii][Ll][Ee]:[^%[%]]*%]%][^<>]*</span>).*', '%1')
n = mw.ustring.gsub(n, '&nbsp;(</span>)', '%1')
end
end  
-- replace link text in name with team abbr if possible
if n and t and n:match('(%[%^%[%*%]%])') then
n = mw.ustring.gsub(n, '(%[%%*%|)[^%|%]]*(%]%])', '%1' .. t .. '%2')
n = mw.ustring.gsub(n, '(%[%%*)(%]%])', '%1|' .. t .. '%2')
return n
end
-- nothing worked, so just return the unlinked team abbr
return t or ''
end  
function p.header(tt,Args,p_sub,N_teams,team_list,legs,prefix)
local ii, team_code_ii, short_name
prefix = prefix or ''
legs = tonumber(Args[prefix .. 'legs']) or 1  
-- Set match column width
local col_width = Args['match_col_width'] or '28'  
-- Determine if default short style is position for short name
local yesno = require('Module:Yesno')
local pos_short = yesno(Args['use_pos_short'] or 'no')  
if N_teams>2 then
-- Set the column span
col_width = col_width .. ''  
-- Get some default values in case it doesn't start at 1
local top_pos = tonumber(Args['highest_pos']) or 1  
for ii=top_pos,N_teams do
team_code_ii = team_list[ii]
short_name = get_short_name(Args['short_'..team_code_ii],
pos_short and ii or team_code_ii, Args['name_'..team_code_ii], Args['short_style'] or '')
tt = p_sub.colhead(tt,col_width,short_name)
if legs > 1 then
tt.count = tt.count + legs - 1
end
end
else
for ii=1,legs do
local game_header = Args[prefix..'game'..ii..'_header'] or ii
tt = p_sub.colhead(tt,col_width,game_header)
end
end
local tb_numplayers = tonumber(Args['tb_numplayers']) or 0
if prefix == '' and tb_numplayers >= 2 then
-- Add empty column header
tt.count = tt.count+1
table.insert(tt.tab_text,'! scope="row"| \n')
tt = p.header(tt,Args,p_sub,tb_numplayers,team_list,legs,'tb')
end
return tt
end  
function p.row(tt,Args,N_teams,team_list,ii,ii_show,legs,prefix)
-- Note ii is the row number being shown
local jj, fw, bg, result, bg_col, team_code_jj
prefix = prefix or ''
legs = tonumber(Args[prefix .. 'legs']) or 1
local team_code_ii = team_list[ii]  
-- Determine if backgrounds will be colored
local yesno = require('Module:Yesno')
local colorbg = yesno(Args['colorbg'] or 'yes')  
-- Get some default values in case it doesn't start at 1
local top_pos = tonumber(Args['highest_pos']) or 1  
local bgcolrow_str = Args[prefix .. 'bgcolrow_' .. team_code_ii] or ''
if bgcolrow_str ~= '' then
for pp=1,(top_pos-1) do
bgcolrow_str = mw.ustring.gsub(bgcolrow_str, '^([^,]*),?', *) or * -- Trim bgcol data prior to top_pos
end
end
for jj=top_pos,N_teams do
local bl = '-: solid #aaa;'
if ii == jj and N_teams>2 then
-- Solid cell
fw = 'font-weight:' .. (ii==ii_show and 'bold' or 'normal') .. ';'
bg = 'background:transparent;'  
-- Background color for solid cell
local solid_cell = Args['solid_cell'] or ''
if solid_cell ~= 'gray' and solid_cell ~= 'grey' and solid_cell ~= 'lightgray' and solid_cell ~= 'lightgrey' and solid_cell ~= 'silver' then
solid_cell = mw.ustring.match(solid_cell,'^#%x%x%x+') or ''
end
if solid_cell ~= '' then
table.insert(tt,'| |\n')
else
table.insert(tt,'| | &mdash;\n')
end
elseif ii ~= jj then
-- Content cells
team_code_jj = team_list[jj]
if bgcolrow_str ~= '' then
Args[prefix .. 'bgcol_' .. team_code_ii..'_'..team_code_jj] = mw.ustring.match(bgcolrow_str, '^([^,]*),?')
end
local bgcol_str = Args[prefix .. 'bgcol_'..team_code_ii..'_'..team_code_jj] or ''
for l=1,legs do
-- Get match data
local m = (legs == 1) and 'match_' or 'match' .. l .. '_'
m = prefix .. m
result = Args[m..team_code_ii..'_'..team_code_jj] or '&nbsp;&nbsp;'  
-- Set bolding and background
fw = 'font-weight:' .. ((ii==ii_show or jj == ii_show) and 'bold' or 'normal') .. ';'
if l > 1 or N_teams<=2 then
bl = ''
end
bg = 'background:transparent;'  
-- Background coloring
if colorbg then
local bg_col = mw.ustring.match(bgcol_str, '^([^%+]*)%+?') or ''
bgcol_str = mw.ustring.gsub(bgcol_str, '^([^%+]*)%+?', *) or * -- Remove bg_col from bgcol_str
bg_col = mw.ustring.gsub(bg_col,'^%s*','') -- Trim starting whitespace
bg_col = mw.ustring.gsub(bg_col,'%s*$','') -- Trim ending whitespace
if bg_col == '' then
bg_col = (l % 2 == 0 and 'B') or 'W'
else
bg_col = mw.ustring.upper(bg_col)
end
if bg_col == 'B' then
bg = 'background:black; color:white';
end
end
table.insert(tt,'| |'..result..'\n')
end
end
bgcolrow_str = mw.ustring.gsub(bgcolrow_str, '^([^,]*),?', *) or *
end  
local tb_numplayers = tonumber(Args['tb_numplayers']) or 0
if prefix == '' and tb_numplayers >= 2 then
-- Add empty cell
table.insert(tt,'|| \n')
if ii <= tb_numplayers then
tt = p.row(tt,Args,tb_numplayers,team_list,ii,ii_show,legs,'tb')
else
local numtbgames = (tb_numplayers == 2) and legs or (tb_numplayers * legs)
for gg=1,numtbgames do
table.insert(tt,'|| \n')
end
end
end  
return tt
end  
return p