%{ %} #include def.tin #include string.tin %start command %% command : source | source {global ds9; if {!$ds9(init)} {YYERROR} else {yyclearin; YYACCEPT}} STRING_ ; source : STRING_ {SourceCmd $1} ; %% proc source::yyerror {msg} { variable yycnt variable yy_current_buffer variable index_ ParserError $msg $yycnt $yy_current_buffer $index_ }