Module:Command

Documentation for this module may be created at Module:Command/doc

local p = {}
function p.cmd( f )
	local args = f
	if f == mw.getCurrentFrame() then
		args = f:getParent().args
	end
	--if args.be then
		--local syntax = mw.loadData( 'Module:Command/SyntaxBE' )
	--else
		local syntax = mw.loadData( 'Module:Command/Syntax')
	--end
	local fullCommand
	local commandName = args[1]:match( '^%s*/?([^%s]+)' ):lower()
	local params = {}
	local command = {}
	
	--getparams
	for i, v in ipairs( args ) do
		if not args[i+1] and v == '...' then
			fullCommand = true
		elseif i > 1 or v:match( '^%s*/?(.+)' ):lower() ~= commandName then
			table.insert( params, mw.text.trim( v ) )
		end
	end

	local needFormat = false
	if ( fullCommand or args[2] or args[1]:match('?') ) and syntax['command'..commandName] then
		needFormat = true
	end

	--escape space and split args
	if #params == 1 and ( not args[2] or args[2] == '...' ) and params[1]:find( '%s' ) then
		params[1] = params[1]:match( '^[^%s]+%s(.+)' )
		
		if needFormat then
		
			params[1] = params[1]:gsub( '\\\\', '\\' ):gsub( '\\"', '\"' ):gsub( "\\'", '\'' ):gsub( '(@[aesprcv])%s+(%[)', '%1%2' )
		
			while(true) do
				local startPos, endPos = params[1]:find( "'[^']-'" )
				local startPosn, endPosn = params[1]:find('"[^"]-"')
				if startPos and startPos and startPosn < startPos then
					startPos, endPos = startPosn, endPosn
				end
				if not startPos then
					startPos, endPos = params[1]:find( '"[^"]+"' )
					if not startPos then
						startPos, endPos = params[1]:find( '%b[]' )
						if not startPos then
							startPos, endPos = params[1]:find( '%b{}' )
							if not startPos then
								startPos, endPos = params[1]:find( '&lt;!%-%- Command %-%->.+&lt;!%-%- /Command %-%->' )
							end
						end
					end
				end
				
				if startPos then
					params[1] = params[1]:sub( 1, startPos - 1 ) ..
						params[1]:sub( startPos, endPos ):gsub('%[','〈lsqb〉'):gsub('%]','〈rsqb〉'):gsub('{','&lcub;'):gsub('}','&rcub;'):gsub("'",'&apos;'):gsub('"','&quot;'):gsub( '%s', '〈space〉' ) ..
						params[1]:sub( endPos + 1 )
				else
					break
				end
			end
		
			params = mw.text.split( params[1], '%s+' )
		end
	end
	
	if needFormat then
		local param = 0
		function parseParams( defaultParams )
			local section = {}
			local hasValue
			local prefix
			for i, v in pairs( defaultParams or {} ) do
				if type( v ) == 'table' then
					param = param + 1
					for k,j in pairs(v) do
						v = j
						prefix = k
						break
					end
					if params[param] ~= '' and params[param]~='?' then
						hasValue = false
						for k,j in pairs(v) do
							if j == params[param] or j:match('<.+>') then
								table.insert(section, j)
								hasValue=true
								if k=='redirect' then
									param = param - 1
									table.insert(section, parseParams(syntax[j:match('<(.+)>')]))
								else
									table.insert(section, parseParams(syntax[prefix..j]))
								end
								break
							end
						end
						if not hasValue then
							params = {}
							break
						end
					else
						params = {}
						local option = {}
						local swap
						for _,j in pairs(v) do
							if fullCommand then
								swap = {j,parseParams(syntax[prefix..j])}
								table.insert(option, table.concat(swap,' '))
							else
								table.insert(option, j)
							end
						end
						table.insert(section, '('..table.concat(option, '|')..')')
					end
				elseif i == 'redirect' then
					if params[param+1] then
						table.insert(section, parseParams(syntax[v]))
					elseif v:match("^command$") then
						table.insert(section, "-> ''"..v.."''")
					else
						table.insert(section, "-> ''"..v:match('command(.+)').."''")
					end
				else
					param = param + 1
					if params[param] and params[param] ~= '' and params[param] ~= '?' then
						table.insert(section,params[param])
					else
						table.insert(section, v)
					end
				end
				if not fullCommand and not params[param+1] then
					break
				end
			end
			
			section = table.concat( section, ' ' )
			if section == '' then
				section = nil
			end
			
			return section
		end
		
		command = { parseParams( syntax['command'..commandName] ) }
		
		-- Add any extra parameters not defined in the syntax
		if #params > param then
			for i, v in ipairs( params ) do
				if i > param then
					table.insert( command, v )
				end
			end
		end
	else
		command = params
	end
	
	if args.link then
		if args.link:lower() ~= 'none' then
			commandName = '[[' .. args.link .. '|' .. commandName .. ']]'
		end
	else
		commandName = '[[Commands/' .. commandName .. '|' .. commandName .. ']]'
	end
	table.insert( command, 1, commandName )
	
	local slash = '/'
	if args['/'] == '0' or args.slash == '0' then
		slash = ''
	end
	
	local attr = ''
	if args.long then
		attr = 'style="display: block; padding: 0.8em 1em; margin-bottom: 0.4em; word-warp: break-word;"'
	end
	
	local result = table.concat( command, ' ' ):gsub( '〈space〉', ' ' ):gsub('〈lsqb〉', '%['):gsub('〈rsqb〉', '%]')
	-- Don't encode if told not to or if there is a sub-command
	if args.escape ~= '0' then
		result = result:gsub( '<', '&lt;' ):gsub( '&lt;(!%-%- /?Command %-%->)','<%1') 
	end
	return '<!-- Command --><code ' .. attr .. '>' .. slash .. result .. '</code><!-- /Command -->'
end
return p