%{
%}

%token INT_
%token REAL_
%token STRING_

%start command

%token CLOSE_
%token IN_
%token FIT_
%token OPEN_
%token OUT_
%token TO_

%%

command : {ProcessRealizeDS9} zoom
 ;

zoom : numeric {Zoom $1 $1}
 | numeric numeric {Zoom $1 $2}
 | OPEN_ {PanZoomDialog}
 | CLOSE_ {PanZoomDestroyDialog}
 | IN_ {Zoom 2 2}
 | OUT_ {Zoom .5 .5}
 | TO_ zoomTo
 ;

zoomTo: FIT_ {ZoomToFit}
 | numeric {global zoom; set current(zoom) " $1 $1 "; ChangeZoom}
 | numeric numeric {global zoom; set current(zoom) " $1 $2 "; ChangeZoom}
 ;

numeric	: INT_ {set _ $1}
 | REAL_ {set _ $1}
 ;

%%

proc yy::yyerror {msg} {
     puts stderr "$msg:"
     puts stderr "$yy::yy_current_buffer"
     puts stderr [format "%*s" $yy::index_ ^]
}