Changes
export str._match function for use in other modules - syncing from sandbox
]]
-- This sub-routine is exported for use in other modulesfunction str.match( frame )	local new_args = str._getParameters_match( frame.args, {'s', 'pattern', 'start', 'match'match_index, 'plain', 'nomatch'} );	local s = new_args['s'] or '';	local start = tonumber( new_args['start'] ) or 1;	local plain_flag = str._getBoolean( new_args['plain'] or false );	local pattern = new_args['pattern'] or '';	local match_index = math.floor( tonumber(new_args['match']) or 1 );	local nomatch = new_args['nomatch']; 
	if s == '' then
		return str._error( 'Target string is empty' );
		return str._error( 'Pattern string is empty' );
	end
	start = tonumber(start) or 1
	if math.abs(start) < 1 or math.abs(start) > mw.ustring.len( s ) then
		return str._error( 'Requested start is out of range' );
		return result;
	end
end
-- This is the entry point for #invoke:String|match
function str.match( frame )
	local new_args = str._getParameters( frame.args, {'s', 'pattern', 'start', 'match', 'plain', 'nomatch'} );
	local s = new_args['s'] or '';
	local start = tonumber( new_args['start'] ) or 1;
	local plain_flag = str._getBoolean( new_args['plain'] or false );
	local pattern = new_args['pattern'] or '';
	local match_index = math.floor( tonumber(new_args['match']) or 1 );
	local nomatch = new_args['nomatch'];
	return str._match( s, pattern, start, match_index, plain, nomatch )
end