parser.cpp

p2p软件电驴的源码

    }
  else
    {
      yytoken = YYTRANSLATE (yychar);
      YYDSYMPRINTF ("Next token is", yytoken, &yylval, &yylloc);
    }

  /* If the proper action on seeing token YYTOKEN is to reduce or to
     detect an error, take that action.  */
  yyn += yytoken;
  if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yytoken)
    goto yydefault;
  yyn = yytable[yyn];
  if (yyn <= 0)
    {
      if (yyn == 0 || yyn == YYTABLE_NINF)
	goto yyerrlab;
      yyn = -yyn;
      goto yyreduce;
    }

  if (yyn == YYFINAL)
    YYACCEPT;

  /* Shift the lookahead token.  */
  YYDPRINTF ((stderr, "Shifting token %s, ", yytname[yytoken]));

  /* Discard the token being shifted unless it is eof.  */
  if (yychar != YYEOF)
    yychar = YYEMPTY;

  *++yyvsp = yylval;


  /* Count tokens shifted since error; after three, turn off error
     status.  */
  if (yyerrstatus)
    yyerrstatus--;

  yystate = yyn;
  goto yynewstate;


/*-----------------------------------------------------------.
| yydefault -- do the default action for the current state.  |
`-----------------------------------------------------------*/
yydefault:
  yyn = yydefact[yystate];
  if (yyn == 0)
    goto yyerrlab;
  goto yyreduce;


/*-----------------------------.
| yyreduce -- Do a reduction.  |
`-----------------------------*/
yyreduce:
  /* yyn is the number of a rule to reduce with.  */
  yylen = yyr2[yyn];

  /* If YYLEN is nonzero, implement the default value of the action:
     `$$ = $1'.

     Otherwise, the following line sets YYVAL to garbage.
     This behavior is undocumented and Bison
     users should not rely upon it.  Assigning to YYVAL
     unconditionally makes the parser a bit smaller, and it avoids a
     GCC warning that YYVAL may be used uninitialized.  */
  yyval = yyvsp[1-yylen];


  YY_REDUCE_PRINT (yyn);
  switch (yyn)
    {
        case 2:

    {
						ParsedSearchExpression(yyvsp[0].pexpr);
						delete yyvsp[0].pexpr;
						return 0;
					;}
    break;

  case 3:

    {
						CSearchExpr* pexpr = new CSearchExpr(yyvsp[0].pstr);
						ParsedSearchExpression(pexpr);
						delete pexpr;
						delete yyvsp[0].pstr;
						return 0;
					;}
    break;

  case 4:

    {
						yyerror(GetResString(IDS_SEARCH_GENERALERROR));
						delete yyvsp[-1].pexpr;
						return 1;
					;}
    break;

  case 6:

    {
						CSearchExpr* pexpr = new CSearchExpr;
						pexpr->Add(SEARCHOP_AND);
						pexpr->Add(yyvsp[-2].pexpr);
						pexpr->Add(yyvsp[0].pexpr);
						yyval.pexpr = pexpr;
						delete yyvsp[-2].pexpr;
						delete yyvsp[0].pexpr;
					;}
    break;

  case 7:

    {
						CSearchExpr* pexpr = new CSearchExpr;
						pexpr->Add(SEARCHOP_OR);
						pexpr->Add(yyvsp[-2].pexpr);
						pexpr->Add(yyvsp[0].pexpr);
						yyval.pexpr = pexpr;
						delete yyvsp[-2].pexpr;
						delete yyvsp[0].pexpr;
					;}
    break;

  case 8:

    {
						CSearchExpr* pexpr = new CSearchExpr;
						pexpr->Add(SEARCHOP_NOT);
						pexpr->Add(yyvsp[-2].pexpr);
						pexpr->Add(yyvsp[0].pexpr);
						yyval.pexpr = pexpr;
						delete yyvsp[-2].pexpr;
						delete yyvsp[0].pexpr;
					;}
    break;

  case 9:

    {
						yyval.pexpr = yyvsp[-1].pexpr;
					;}
    break;

  case 10:

    {
						yyerror(GetResString(IDS_SEARCH_MISSINGORRIGHT));
						delete yyvsp[-2].pexpr;
						return 1;
					;}
    break;

  case 11:

    {
						yyerror(GetResString(IDS_SEARCH_MISSINGNOTRIGHT));
						delete yyvsp[-2].pexpr;
						return 1;
					;}
    break;

  case 12:

    {
						yyerror(GetResString(IDS_SEARCH_MISSINGEXPRPARANT));
						return 1;
					;}
    break;

  case 13:

    {
						yyerror(GetResString(IDS_SEARCH_MISSINGCLOSINGPARANT));
						delete yyvsp[-1].pexpr;
						return 1;
					;}
    break;

  case 14:

    {
						yyerror(GetResString(IDS_SEARCH_MISSINGANDLEFT));
						return 1;
					;}
    break;

  case 15:

    {
						yyerror(GetResString(IDS_SEARCH_MISSINGORLEFT));
						return 1;
					;}
    break;

  case 16:

    {
						yyerror(GetResString(IDS_SEARCH_MISSINGNOTLEFT));
						return 1;
					;}
    break;

  case 17:

    {
						yyval.pexpr = new CSearchExpr(yyvsp[0].pstr);
						delete yyvsp[0].pstr;
					;}
    break;

  case 18:

    {
						/*$1->Concatenate($2);
						delete $2;*/
						CSearchExpr* pexpr = new CSearchExpr;
						pexpr->Add(SEARCHOP_AND);
						pexpr->Add(yyvsp[-1].pexpr);
						pexpr->Add(yyvsp[0].pstr);
						yyval.pexpr = pexpr;
						delete yyvsp[-1].pexpr;
						delete yyvsp[0].pstr;
					;}
    break;


    }

/* Line 991 of yacc.c.  */


  yyvsp -= yylen;
  yyssp -= yylen;


  YY_STACK_PRINT (yyss, yyssp);

  *++yyvsp = yyval;


  /* Now `shift' the result of the reduction.  Determine what state
     that goes to, based on the state we popped back to and the rule
     number reduced by.  */

  yyn = yyr1[yyn];

  yystate = yypgoto[yyn - YYNTOKENS] + *yyssp;
  if (0 <= yystate && yystate <= YYLAST && yycheck[yystate] == *yyssp)
    yystate = yytable[yystate];
  else
    yystate = yydefgoto[yyn - YYNTOKENS];

  goto yynewstate;


/*------------------------------------.
| yyerrlab -- here on detecting error |
`------------------------------------*/
yyerrlab:
  /* If not already recovering from an error, report this error.  */
  if (!yyerrstatus)
    {
      ++yynerrs;
#if YYERROR_VERBOSE
      yyn = yypact[yystate];

      if (YYPACT_NINF < yyn && yyn < YYLAST)
	{
	  YYSIZE_T yysize = 0;
	  int yytype = YYTRANSLATE (yychar);
	  char *yymsg;
	  int yyx, yycount;

	  yycount = 0;
	  /* Start YYX at -YYN if negative to avoid negative indexes in
	     YYCHECK.  */
	  for (yyx = yyn < 0 ? -yyn : 0;
	       yyx < (int) (sizeof (yytname) / sizeof (char *)); yyx++)
	    if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR)
	      yysize += yystrlen (yytname[yyx]) + 15, yycount++;
	  yysize += yystrlen ("syntax error, unexpected ") + 1;
	  yysize += yystrlen (yytname[yytype]);
	  yymsg = (char *) YYSTACK_ALLOC (yysize);
	  if (yymsg != 0)
	    {
	      char *yyp = yystpcpy (yymsg, "syntax error, unexpected ");
	      yyp = yystpcpy (yyp, yytname[yytype]);

	      if (yycount < 5)
		{
		  yycount = 0;
		  for (yyx = yyn < 0 ? -yyn : 0;
		       yyx < (int) (sizeof (yytname) / sizeof (char *));
		       yyx++)
		    if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR)
		      {
			const char *yyq = ! yycount ? ", expecting " : " or ";
			yyp = yystpcpy (yyp, yyq);
			yyp = yystpcpy (yyp, yytname[yyx]);
			yycount++;
		      }
		}
	      yyerror (yymsg);
	      YYSTACK_FREE (yymsg);
	    }
	  else
	    yyerror ("syntax error; also virtual memory exhausted");
	}
      else
#endif /* YYERROR_VERBOSE */
	yyerror ("syntax error");
    }



  if (yyerrstatus == 3)
    {
      /* If just tried and failed to reuse lookahead token after an
	 error, discard it.  */

      /* Return failure if at end of input.  */
      if (yychar == YYEOF)
        {
	  /* Pop the error token.  */
          YYPOPSTACK;
	  /* Pop the rest of the stack.  */
	  while (yyss < yyssp)
	    {
	      YYDSYMPRINTF ("Error: popping", yystos[*yyssp], yyvsp, yylsp);
	      yydestruct (yystos[*yyssp], yyvsp);
	      YYPOPSTACK;
	    }
	  YYABORT;
        }

      YYDSYMPRINTF ("Error: discarding", yytoken, &yylval, &yylloc);
      yydestruct (yytoken, &yylval);
      yychar = YYEMPTY;

    }

  /* Else will try to reuse lookahead token after shifting the error
     token.  */
  goto yyerrlab2;


/*----------------------------------------------------.
| yyerrlab1 -- error raised explicitly by an action.  |
`----------------------------------------------------*/
yyerrlab1:

  /* Suppress GCC warning that yyerrlab1 is unused when no action
     invokes YYERROR.  */
#if defined (__GNUC_MINOR__) && 2093 <= (__GNUC__ * 1000 + __GNUC_MINOR__)
  __attribute__ ((__unused__))
#endif


  goto yyerrlab2;


/*---------------------------------------------------------------.
| yyerrlab2 -- pop states until the error token can be shifted.  |
`---------------------------------------------------------------*/
yyerrlab2:
  yyerrstatus = 3;	/* Each real token shifted decrements this.  */

  for (;;)
    {
      yyn = yypact[yystate];
      if (yyn != YYPACT_NINF)
	{
	  yyn += YYTERROR;
	  if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYTERROR)
	    {
	      yyn = yytable[yyn];
	      if (0 < yyn)
		break;
	    }
	}

      /* Pop the current state because it cannot handle the error token.  */
      if (yyssp == yyss)
	YYABORT;

      YYDSYMPRINTF ("Error: popping", yystos[*yyssp], yyvsp, yylsp);
      yydestruct (yystos[yystate], yyvsp);
      yyvsp--;
      yystate = *--yyssp;

      YY_STACK_PRINT (yyss, yyssp);
    }

  if (yyn == YYFINAL)
    YYACCEPT;

  YYDPRINTF ((stderr, "Shifting error token, "));

  *++yyvsp = yylval;


  yystate = yyn;
  goto yynewstate;


/*-------------------------------------.
| yyacceptlab -- YYACCEPT comes here.  |
`-------------------------------------*/
yyacceptlab:
  yyresult = 0;
  goto yyreturn;

/*-----------------------------------.
| yyabortlab -- YYABORT comes here.  |
`-----------------------------------*/
yyabortlab:
  yyresult = 1;
  goto yyreturn;

#ifndef yyoverflow
/*----------------------------------------------.
| yyoverflowlab -- parser overflow comes here.  |
`----------------------------------------------*/
yyoverflowlab:
  yyerror ("parser stack overflow");
  yyresult = 2;
  /* Fall through.  */
#endif

yyreturn:
#ifndef yyoverflow
  if (yyss != yyssa)
    YYSTACK_FREE (yyss);
#endif
  return yyresult;
}





int yyerror(const char* errstr)
{
	// Errors created by yacc generated code
	//yyerror ("syntax error: cannot back up");
	//yyerror ("syntax error; also virtual memory exhausted");
	//yyerror ("syntax error");
	//yyerror ("parser stack overflow");

	USES_CONVERSION;
	_astrParserErrors.Add(A2CT(errstr));
	return EXIT_FAILURE;
}

#ifdef _UNICODE
int yyerror(LPCTSTR errstr)
{
	_astrParserErrors.Add(errstr);
	return EXIT_FAILURE;
}
#endif