#include "symbol_table.h"
#include <string.h>

// SEE SYMBOL_TABLE.H
symbol_table::symbol_table() {
}

void symbol_table::add_descriptor(figure_descriptor* d) {
   descriptors.insert_after(descriptors.last(),d);
}

figure_descriptor* symbol_table::find_descriptor(const char* n) {
   list_iterator<figure_descriptor*> I = descriptors.first();
   
   while(I.has_more_elements()) {
      if (strcmp((*I)->get_name(),n)==0) {
         return *I;
      }
      I++;
   }


   return (figure_descriptor*)0;
}

list_iterator<figure_descriptor*> symbol_table::first_descriptor() {
   return descriptors.first();
}

symbol_table::~symbol_table() {
   list_iterator<figure_descriptor*> I = descriptors.first();
   
   while(I.has_more_elements()) {
      delete *I;
      I++;
   }
}