sam-t2/sam/cpus/vonk/ss/api/pli/src/SS_ConfigParser.y

%{
#include <stdio.h>
#include "SS_ConfigObject.h"

SS_ConfigObjectList* config_objects;

%}

%union {
  SS_ConfigValue*      val;
  SS_ConfigFieldList*  lst;
  SS_ConfigObject*     obj;
  SS_ConfigObjectList* objlst;
}

%token TOKEN_OBJECT
%token TOKEN_TYPE
%token TOKEN_VAR
%token TOKEN_SYM
%token TOKEN_NUM
%token TOKEN_STR

%%

main : object_star
{
  config_objects = $$.objlst;
}

object_star : object_plus
{
  $$ = $1;
}
| /* empty */
{
  $$.objlst = new SS_ConfigObjectList();
}
;

object_plus : object_plus object
{
  $$ = $1;
  $$.objlst->object[$2.obj->name] = $2.obj;
}
| object
{
  $$.objlst = new SS_ConfigObjectList();
  $$.objlst->object[$1.obj->name] = $1.obj;
}
;

object : TOKEN_OBJECT TOKEN_VAR TOKEN_TYPE TOKEN_VAR '{' property_star '}'
{
  $$.obj = new SS_ConfigObject($2.val->var()->value,$4.val->var()->value,$6.lst);
}
;

property_star : property_plus
{
  $$ = $1;
}
| /* empty */
{
  $$.lst = new SS_ConfigFieldList();
}
;

property_plus : property_plus TOKEN_VAR ':' constant
{
  $$ = $1;
  $$.lst->field[$2.val->var()->value] = $4.val;
  delete $2.val;
}
| TOKEN_VAR ':' constant
{
  $$.lst = new SS_ConfigFieldList();
  $$.lst->field[$1.val->var()->value] = $3.val;
  delete $1.val;
}
;

constant : TOKEN_SYM
{
  $$ = $1;
}
| TOKEN_VAR
{
  $$ = $1;
}
| TOKEN_NUM
{
  $$ = $1;
}
| TOKEN_STR
{
  $$ = $1;
}
| '(' constant_star ')'
{
  $$ = $2;
}
;

constant_star : constant_plus
{
  $$ = $1;
}
| /* empty */
{
  $$.val = new SS_ConfigValueList();
}
;

constant_plus : constant_plus ',' constant
{
  $$ = $1;
  $$.val->lst()->value.push_back($3.val);
}
| constant
{
  $$.val = new SS_ConfigValueList();
  $$.val->lst()->value.push_back($1.val);
}
;

%%

void yyerror( const char *msg )
{
  fprintf(stderr,"ConfigParser: %s\n",msg);
}