src/op5/ninja_sdk/parsegen/LalrError.php

   1 <?php
   2
   3 class LalrError {
   4         private $name;
   5         private $generate;
   6         private $follow;
   7
   8         public function __construct( $name, $generate, $follow ) {
   9                 $this->name = $name;
  10                 $this->generate = $generate;
  11                 $this->follow = $follow;
  12         }
  13
  14         public function get_name() {
  15                 return $this->name;
  16         }
  17
  18         public function generates() {
  19                 return $this->generate;
  20         }
  21
  22         public function produces( $symbol ) {
  23                 return $this->generate == $symbol;
  24         }
  25
  26         public function follow() {
  27                 return $this->follow;
  28         }
  29         public function follows( $symbol ) {
  30                 return in_array($symbol,$this->follow);
  31         }
  32
  33         public function equals( $item ) {
  34                 return ($item->name == $this->name);
  35         }
  36
  37         public function __toString() {
  38                 $outp = sprintf( "%s: %s := error(%s)", $this->name, $this->generate, $this->follow );
  39                 return $outp;
  40         }
  41 }