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Overview
Comment:Change the way that lemon handles %extra_argument. (CVS 427)
Downloads: Tarball | ZIP archive
Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA1: ffc387a48a9864b7f323314fbf8295b5bb2a3bd1
User & Date: drh 2002-03-11 13:55:50.000
Context
2002-03-12
23:10
Fix the return type of the xStep function in the FuncDef structure definition. (CVS 428) (check-in: 753adb789e user: drh tags: trunk)
2002-03-11
13:55
Change the way that lemon handles %extra_argument. (CVS 427) (check-in: ffc387a48a user: drh tags: trunk)
02:15
Version 2.4.0 (CVS 443) (check-in: d3f66b44e5 user: drh tags: trunk)
Changes
Unified Diff Show Whitespace Changes Patch
Changes to tool/lemon.c.
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  }
  name = lemp->name ? lemp->name : "Parse";
  if( lemp->arg && lemp->arg[0] ){
    int i;
    i = strlen(lemp->arg);
    while( i>=1 && isspace(lemp->arg[i-1]) ) i--;
    while( i>=1 && (isalnum(lemp->arg[i-1]) || lemp->arg[i-1]=='_') ) i--;
    fprintf(out,"#define %sARGDECL ,%s\n",name,&lemp->arg[i]);  lineno++;
    fprintf(out,"#define %sXARGDECL %s;\n",name,lemp->arg);  lineno++;
    fprintf(out,"#define %sANSIARGDECL ,%s\n",name,lemp->arg);  lineno++;



  }else{
    fprintf(out,"#define %sARGDECL\n",name);  lineno++;
    fprintf(out,"#define %sXARGDECL\n",name);  lineno++;
    fprintf(out,"#define %sANSIARGDECL\n",name);  lineno++;

  }
  if( mhflag ){
    fprintf(out,"#endif\n"); lineno++;
  }
  fprintf(out,"#define YYNSTATE %d\n",lemp->nstate);  lineno++;
  fprintf(out,"#define YYNRULE %d\n",lemp->nrule);  lineno++;
  fprintf(out,"#define YYERRORSYMBOL %d\n",lemp->errsym->index);  lineno++;







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  }
  name = lemp->name ? lemp->name : "Parse";
  if( lemp->arg && lemp->arg[0] ){
    int i;
    i = strlen(lemp->arg);
    while( i>=1 && isspace(lemp->arg[i-1]) ) i--;
    while( i>=1 && (isalnum(lemp->arg[i-1]) || lemp->arg[i-1]=='_') ) i--;
    fprintf(out,"#define %sARG_SDECL %s;\n",name,lemp->arg);  lineno++;
    fprintf(out,"#define %sARG_PDECL ,%s\n",name,lemp->arg);  lineno++;
    fprintf(out,"#define %sARG_FETCH %s = yypParser->%s\n",
                 name,lemp->arg,&lemp->arg[i]);  lineno++;
    fprintf(out,"#define %sARG_STORE yypParser->%s = %s\n",
                 name,&lemp->arg[i],&lemp->arg[i]);  lineno++;
  }else{
    fprintf(out,"#define %sARG_SDECL\n",name);  lineno++;
    fprintf(out,"#define %sARG_PDECL\n",name);  lineno++;
    fprintf(out,"#define %sARG_FETCH\n",name); lineno++;
    fprintf(out,"#define %sARG_STORE\n",name); lineno++;
  }
  if( mhflag ){
    fprintf(out,"#endif\n"); lineno++;
  }
  fprintf(out,"#define YYNSTATE %d\n",lemp->nstate);  lineno++;
  fprintf(out,"#define YYNRULE %d\n",lemp->nrule);  lineno++;
  fprintf(out,"#define YYERRORSYMBOL %d\n",lemp->errsym->index);  lineno++;
Changes to tool/lempar.c.
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**    ParseTOKENTYPE     is the data type used for minor tokens given 
**                       directly to the parser from the tokenizer.
**    YYMINORTYPE        is the data type used for all minor tokens.
**                       This is typically a union of many types, one of
**                       which is ParseTOKENTYPE.  The entry in the union
**                       for base tokens is called "yy0".
**    YYSTACKDEPTH       is the maximum depth of the parser's stack.
**    ParseARGDECL       is a declaration of a 3rd argument to the
**                       parser, or null if there is no extra argument.
**    ParseKRARGDECL     A version of ParseARGDECL for K&R C.
**    ParseANSIARGDECL   A version of ParseARGDECL for ANSI C.
**    YYNSTATE           the combined number of states.
**    YYNRULE            the number of rules in the grammar
**    YYERRORSYMBOL      is the code number of the error symbol.  If not
**                       defined, then do no error processing.
*/
%%
#define YY_NO_ACTION      (YYNSTATE+YYNRULE+2)







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**    ParseTOKENTYPE     is the data type used for minor tokens given 
**                       directly to the parser from the tokenizer.
**    YYMINORTYPE        is the data type used for all minor tokens.
**                       This is typically a union of many types, one of
**                       which is ParseTOKENTYPE.  The entry in the union
**                       for base tokens is called "yy0".
**    YYSTACKDEPTH       is the maximum depth of the parser's stack.
**    ParseARG_SDECL     A static variable declaration for the %extra_argument
**    ParseARG_PDECL     A parameter declaration for the %extra_argument
**    ParseARG_STORE     Code to store %extra_argument into yypParser
**    ParseARG_FETCH     Code to extract %extra_argument from yypParser
**    YYNSTATE           the combined number of states.
**    YYNRULE            the number of rules in the grammar
**    YYERRORSYMBOL      is the code number of the error symbol.  If not
**                       defined, then do no error processing.
*/
%%
#define YY_NO_ACTION      (YYNSTATE+YYNRULE+2)
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** point and size of each hash table.
*/
struct yyActionEntry {
  YYCODETYPE   lookahead;   /* The value of the look-ahead token */
  YYCODETYPE   next;        /* Next entry + 1. Zero at end of collision chain */
  YYACTIONTYPE action;      /* Action to take for this look-ahead */
};

static struct yyActionEntry yyActionTable[] = {
%%
};

/* The state table contains information needed to look up the correct
** action in the action table, given the current state of the parser.
** Information needed includes:
**
**  +  A pointer to the start of the action hash table in yyActionTable.
**
**  +  The number of entries in the action hash table.
**
**  +  The default action.  This is the action to take if no entry for
**     the given look-ahead is found in the action hash table.
*/
struct yyStateEntry {
  struct yyActionEntry *hashtbl; /* Start of the hash table in yyActionTable */
  YYCODETYPE nEntry;             /* Number of entries in action hash table */
  YYACTIONTYPE actionDefault;    /* Default action if look-ahead not found */
};

static struct yyStateEntry yyStateTable[] = {
%%
};

/* The following structure represents a single element of the
** parser's stack.  Information stored includes:
**
**   +  The state number for the parser at this level of the stack.







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** point and size of each hash table.
*/
struct yyActionEntry {
  YYCODETYPE   lookahead;   /* The value of the look-ahead token */
  YYCODETYPE   next;        /* Next entry + 1. Zero at end of collision chain */
  YYACTIONTYPE action;      /* Action to take for this look-ahead */
};
typedef struct yyActionEntry yyActionEntry;
static const yyActionEntry yyActionTable[] = {
%%
};

/* The state table contains information needed to look up the correct
** action in the action table, given the current state of the parser.
** Information needed includes:
**
**  +  A pointer to the start of the action hash table in yyActionTable.
**
**  +  The number of entries in the action hash table.
**
**  +  The default action.  This is the action to take if no entry for
**     the given look-ahead is found in the action hash table.
*/
struct yyStateEntry {
  const yyActionEntry *hashtbl;  /* Start of the hash table in yyActionTable */
  YYCODETYPE nEntry;             /* Number of entries in action hash table */
  YYACTIONTYPE actionDefault;    /* Default action if look-ahead not found */
};
typedef struct yyStateEntry yyStateEntry;
static const yyStateEntry yyStateTable[] = {
%%
};

/* The following structure represents a single element of the
** parser's stack.  Information stored includes:
**
**   +  The state number for the parser at this level of the stack.
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struct yyStackEntry {
  int stateno;       /* The state-number */
  int major;         /* The major token value.  This is the code
                     ** number for the token at this stack level */
  YYMINORTYPE minor; /* The user-supplied minor token value.  This
                     ** is the value of the token  */
};


/* The state of the parser is completely contained in an instance of
** the following structure */
struct yyParser {
  int idx;                            /* Index of top element in stack */
  int errcnt;                         /* Shifts left before out of the error */
  struct yyStackEntry *top;           /* Pointer to the top stack element */

  struct yyStackEntry stack[YYSTACKDEPTH];  /* The parser's stack */
};
typedef struct yyParser yyParser;

#ifndef NDEBUG
#include <stdio.h>
static FILE *yyTraceFILE = 0;
static char *yyTracePrompt = 0;







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struct yyStackEntry {
  int stateno;       /* The state-number */
  int major;         /* The major token value.  This is the code
                     ** number for the token at this stack level */
  YYMINORTYPE minor; /* The user-supplied minor token value.  This
                     ** is the value of the token  */
};
typedef struct yyStackEntry yyStackEntry;

/* The state of the parser is completely contained in an instance of
** the following structure */
struct yyParser {
  int yyidx;                    /* Index of top element in stack */
  int yyerrcnt;                 /* Shifts left before out of the error */
  yyStackEntry *yytop;          /* Pointer to the top stack element */
  ParseARG_SDECL                /* A place to hold %extra_argument */
  yyStackEntry yystack[YYSTACKDEPTH];  /* The parser's stack */
};
typedef struct yyParser yyParser;

#ifndef NDEBUG
#include <stdio.h>
static FILE *yyTraceFILE = 0;
static char *yyTracePrompt = 0;
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  yyTracePrompt = zTracePrompt;
  if( yyTraceFILE==0 ) yyTracePrompt = 0;
  else if( yyTracePrompt==0 ) yyTraceFILE = 0;
}

/* For tracing shifts, the names of all terminals and nonterminals
** are required.  The following table supplies these names */
static char *yyTokenName[] = { 
%%
};
#define YYTRACE(X) if( yyTraceFILE ) fprintf(yyTraceFILE,"%sReduce [%s].\n",yyTracePrompt,X);
#else
#define YYTRACE(X)
#endif








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  yyTracePrompt = zTracePrompt;
  if( yyTraceFILE==0 ) yyTracePrompt = 0;
  else if( yyTracePrompt==0 ) yyTraceFILE = 0;
}

/* For tracing shifts, the names of all terminals and nonterminals
** are required.  The following table supplies these names */
static const char *yyTokenName[] = { 
%%
};
#define YYTRACE(X) if( yyTraceFILE ) fprintf(yyTraceFILE,"%sReduce [%s].\n",yyTracePrompt,X);
#else
#define YYTRACE(X)
#endif

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** A pointer to a parser.  This pointer is used in subsequent calls
** to Parse and ParseFree.
*/
void *ParseAlloc(void *(*mallocProc)(size_t)){
  yyParser *pParser;
  pParser = (yyParser*)(*mallocProc)( (size_t)sizeof(yyParser) );
  if( pParser ){
    pParser->idx = -1;
  }
  return pParser;
}

/* The following function deletes the value associated with a
** symbol.  The symbol can be either a terminal or nonterminal.
** "yymajor" is the symbol code, and "yypminor" is a pointer to







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** A pointer to a parser.  This pointer is used in subsequent calls
** to Parse and ParseFree.
*/
void *ParseAlloc(void *(*mallocProc)(size_t)){
  yyParser *pParser;
  pParser = (yyParser*)(*mallocProc)( (size_t)sizeof(yyParser) );
  if( pParser ){
    pParser->yyidx = -1;
  }
  return pParser;
}

/* The following function deletes the value associated with a
** symbol.  The symbol can be either a terminal or nonterminal.
** "yymajor" is the symbol code, and "yypminor" is a pointer to
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** is popped from the stack, then call it.
**
** Return the major token number for the symbol popped.
*/
static int yy_pop_parser_stack(yyParser *pParser){
  YYCODETYPE yymajor;

  if( pParser->idx<0 ) return 0;
#ifndef NDEBUG
  if( yyTraceFILE && pParser->idx>=0 ){
    fprintf(yyTraceFILE,"%sPopping %s\n",
      yyTracePrompt,
      yyTokenName[pParser->top->major]);
  }
#endif
  yymajor = pParser->top->major;
  yy_destructor( yymajor, &pParser->top->minor);
  pParser->idx--;
  pParser->top--;
  return yymajor;
}

/* 
** Deallocate and destroy a parser.  Destructors are all called for
** all stack elements before shutting the parser down.
**







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** is popped from the stack, then call it.
**
** Return the major token number for the symbol popped.
*/
static int yy_pop_parser_stack(yyParser *pParser){
  YYCODETYPE yymajor;

  if( pParser->yyidx<0 ) return 0;
#ifndef NDEBUG
  if( yyTraceFILE && pParser->yyidx>=0 ){
    fprintf(yyTraceFILE,"%sPopping %s\n",
      yyTracePrompt,
      yyTokenName[pParser->yytop->major]);
  }
#endif
  yymajor = pParser->yytop->major;
  yy_destructor( yymajor, &pParser->yytop->minor);
  pParser->yyidx--;
  pParser->yytop--;
  return yymajor;
}

/* 
** Deallocate and destroy a parser.  Destructors are all called for
** all stack elements before shutting the parser down.
**
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*/
void ParseFree(
  void *p,                    /* The parser to be deleted */
  void (*freeProc)(void*)     /* Function used to reclaim memory */
){
  yyParser *pParser = (yyParser*)p;
  if( pParser==0 ) return;
  while( pParser->idx>=0 ) yy_pop_parser_stack(pParser);
  (*freeProc)((void*)pParser);
}

/*
** Find the appropriate action for a parser given the look-ahead token.
**
** If the look-ahead token is YYNOCODE, then check to see if the action is
** independent of the look-ahead.  If it is, return the action, otherwise
** return YY_NO_ACTION.
*/
static int yy_find_parser_action(
  yyParser *pParser,        /* The parser */
  int iLookAhead             /* The look-ahead token */
){
  struct yyStateEntry *pState;   /* Appropriate entry in the state table */
  struct yyActionEntry *pAction; /* Action appropriate for the look-ahead */
 
  /* if( pParser->idx<0 ) return YY_NO_ACTION;  */
  pState = &yyStateTable[pParser->top->stateno];
  if( pState->nEntry==0 ){
    return pState->actionDefault;
  }else if( iLookAhead!=YYNOCODE ){
    pAction = &pState->hashtbl[iLookAhead % pState->nEntry];
    while( 1 ){
      if( pAction->lookahead==iLookAhead ) return pAction->action;
      if( pAction->next==0 ) return pState->actionDefault;







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*/
void ParseFree(
  void *p,                    /* The parser to be deleted */
  void (*freeProc)(void*)     /* Function used to reclaim memory */
){
  yyParser *pParser = (yyParser*)p;
  if( pParser==0 ) return;
  while( pParser->yyidx>=0 ) yy_pop_parser_stack(pParser);
  (*freeProc)((void*)pParser);
}

/*
** Find the appropriate action for a parser given the look-ahead token.
**
** If the look-ahead token is YYNOCODE, then check to see if the action is
** independent of the look-ahead.  If it is, return the action, otherwise
** return YY_NO_ACTION.
*/
static int yy_find_parser_action(
  yyParser *pParser,        /* The parser */
  int iLookAhead             /* The look-ahead token */
){
  const yyStateEntry *pState;   /* Appropriate entry in the state table */
  const yyActionEntry *pAction; /* Action appropriate for the look-ahead */
 
  /* if( pParser->yyidx<0 ) return YY_NO_ACTION;  */
  pState = &yyStateTable[pParser->yytop->stateno];
  if( pState->nEntry==0 ){
    return pState->actionDefault;
  }else if( iLookAhead!=YYNOCODE ){
    pAction = &pState->hashtbl[iLookAhead % pState->nEntry];
    while( 1 ){
      if( pAction->lookahead==iLookAhead ) return pAction->action;
      if( pAction->next==0 ) return pState->actionDefault;
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*/
static void yy_shift(
  yyParser *yypParser,          /* The parser to be shifted */
  int yyNewState,               /* The new state to shift in */
  int yyMajor,                  /* The major token to shift in */
  YYMINORTYPE *yypMinor         /* Pointer ot the minor token to shift in */
){
  yypParser->idx++;
  yypParser->top++;
  if( yypParser->idx>=YYSTACKDEPTH ){

     yypParser->idx--;
     yypParser->top--;
#ifndef NDEBUG
     if( yyTraceFILE ){
       fprintf(yyTraceFILE,"%sStack Overflow!\n",yyTracePrompt);
     }
#endif
     while( yypParser->idx>=0 ) yy_pop_parser_stack(yypParser);
     /* Here code is inserted which will execute if the parser
     ** stack every overflows */
%%

     return;
  }
  yypParser->top->stateno = yyNewState;
  yypParser->top->major = yyMajor;
  yypParser->top->minor = *yypMinor;
#ifndef NDEBUG
  if( yyTraceFILE && yypParser->idx>0 ){
    int i;
    fprintf(yyTraceFILE,"%sShift %d\n",yyTracePrompt,yyNewState);
    fprintf(yyTraceFILE,"%sStack:",yyTracePrompt);
    for(i=1; i<=yypParser->idx; i++)
      fprintf(yyTraceFILE," %s",yyTokenName[yypParser->stack[i].major]);
    fprintf(yyTraceFILE,"\n");
  }
#endif
}

/* The following table contains information about every rule that
** is used during the reduce.
*/
static struct {
  YYCODETYPE lhs;         /* Symbol on the left-hand side of the rule */
  unsigned char nrhs;     /* Number of right-hand side symbols in the rule */
} yyRuleInfo[] = {
%%
};

static void yy_accept(yyParser *  ParseANSIARGDECL);  /* Forward Declaration */

/*
** Perform a reduce action and the shift that must immediately
** follow the reduce.
*/
static void yy_reduce(
  yyParser *yypParser,         /* The parser */
  int yyruleno                 /* Number of the rule by which to reduce */
  ParseANSIARGDECL
){
  int yygoto;                     /* The next state */
  int yyact;                      /* The next action */
  YYMINORTYPE yygotominor;        /* The LHS of the rule reduced */
  struct yyStackEntry *yymsp;     /* The top of the parser's stack */
  int yysize;                     /* Amount to pop the stack */

  yymsp = yypParser->top;
  switch( yyruleno ){
  /* Beginning here are the reduction cases.  A typical example
  ** follows:
  **   case 0:
  **     YYTRACE("<text of the rule>");
  **  #line <lineno> <grammarfile>
  **     { ... }           // User supplied code
  **  #line <lineno> <thisfile>
  **     break;
  */
%%
  };
  yygoto = yyRuleInfo[yyruleno].lhs;
  yysize = yyRuleInfo[yyruleno].nrhs;
  yypParser->idx -= yysize;
  yypParser->top -= yysize;
  yyact = yy_find_parser_action(yypParser,yygoto);
  if( yyact < YYNSTATE ){
    yy_shift(yypParser,yyact,yygoto,&yygotominor);
  }else if( yyact == YYNSTATE + YYNRULE + 1 ){
    yy_accept(yypParser ParseARGDECL);
  }
}

/*
** The following code executes when the parse fails
*/
static void yy_parse_failed(
  yyParser *yypParser           /* The parser */
  ParseANSIARGDECL              /* Extra arguments (if any) */
){

#ifndef NDEBUG
  if( yyTraceFILE ){
    fprintf(yyTraceFILE,"%sFail!\n",yyTracePrompt);
  }
#endif
  while( yypParser->idx>=0 ) yy_pop_parser_stack(yypParser);
  /* Here code is inserted which will be executed whenever the
  ** parser fails */
%%

}

/*
** The following code executes when a syntax error first occurs.
*/
static void yy_syntax_error(
  yyParser *yypParser,           /* The parser */
  int yymajor,                   /* The major type of the error token */
  YYMINORTYPE yyminor            /* The minor type of the error token */
  ParseANSIARGDECL               /* Extra arguments (if any) */
){

#define TOKEN (yyminor.yy0)
%%

}

/*
** The following is executed when the parser accepts
*/
static void yy_accept(
  yyParser *yypParser           /* The parser */
  ParseANSIARGDECL              /* Extra arguments (if any) */
){

#ifndef NDEBUG
  if( yyTraceFILE ){
    fprintf(yyTraceFILE,"%sAccept!\n",yyTracePrompt);
  }
#endif
  while( yypParser->idx>=0 ) yy_pop_parser_stack(yypParser);
  /* Here code is inserted which will be executed whenever the
  ** parser accepts */
%%

}

/* The main parser program.
** The first argument is a pointer to a structure obtained from
** "ParseAlloc" which describes the current state of the parser.
** The second argument is the major token number.  The third is
** the minor token.  The fourth optional argument is whatever the







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320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378

379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415

416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436

437
438
439
440
441
442
443
444
445
446
447
448

449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
*/
static void yy_shift(
  yyParser *yypParser,          /* The parser to be shifted */
  int yyNewState,               /* The new state to shift in */
  int yyMajor,                  /* The major token to shift in */
  YYMINORTYPE *yypMinor         /* Pointer ot the minor token to shift in */
){
  yypParser->yyidx++;
  yypParser->yytop++;
  if( yypParser->yyidx>=YYSTACKDEPTH ){
     ParseARG_FETCH;
     yypParser->yyidx--;
     yypParser->yytop--;
#ifndef NDEBUG
     if( yyTraceFILE ){
       fprintf(yyTraceFILE,"%sStack Overflow!\n",yyTracePrompt);
     }
#endif
     while( yypParser->yyidx>=0 ) yy_pop_parser_stack(yypParser);
     /* Here code is inserted which will execute if the parser
     ** stack every overflows */
%%
     ParseARG_STORE; /* Suppress warning about unused %extra_argument var */
     return;
  }
  yypParser->yytop->stateno = yyNewState;
  yypParser->yytop->major = yyMajor;
  yypParser->yytop->minor = *yypMinor;
#ifndef NDEBUG
  if( yyTraceFILE && yypParser->yyidx>0 ){
    int i;
    fprintf(yyTraceFILE,"%sShift %d\n",yyTracePrompt,yyNewState);
    fprintf(yyTraceFILE,"%sStack:",yyTracePrompt);
    for(i=1; i<=yypParser->yyidx; i++)
      fprintf(yyTraceFILE," %s",yyTokenName[yypParser->yystack[i].major]);
    fprintf(yyTraceFILE,"\n");
  }
#endif
}

/* The following table contains information about every rule that
** is used during the reduce.
*/
static struct {
  YYCODETYPE lhs;         /* Symbol on the left-hand side of the rule */
  unsigned char nrhs;     /* Number of right-hand side symbols in the rule */
} yyRuleInfo[] = {
%%
};

static void yy_accept(yyParser*);  /* Forward Declaration */

/*
** Perform a reduce action and the shift that must immediately
** follow the reduce.
*/
static void yy_reduce(
  yyParser *yypParser,         /* The parser */
  int yyruleno                 /* Number of the rule by which to reduce */

){
  int yygoto;                     /* The next state */
  int yyact;                      /* The next action */
  YYMINORTYPE yygotominor;        /* The LHS of the rule reduced */
  yyStackEntry *yymsp;            /* The top of the parser's stack */
  int yysize;                     /* Amount to pop the stack */
  ParseARG_FETCH;
  yymsp = yypParser->yytop;
  switch( yyruleno ){
  /* Beginning here are the reduction cases.  A typical example
  ** follows:
  **   case 0:
  **     YYTRACE("<text of the rule>");
  **  #line <lineno> <grammarfile>
  **     { ... }           // User supplied code
  **  #line <lineno> <thisfile>
  **     break;
  */
%%
  };
  yygoto = yyRuleInfo[yyruleno].lhs;
  yysize = yyRuleInfo[yyruleno].nrhs;
  yypParser->yyidx -= yysize;
  yypParser->yytop -= yysize;
  yyact = yy_find_parser_action(yypParser,yygoto);
  if( yyact < YYNSTATE ){
    yy_shift(yypParser,yyact,yygoto,&yygotominor);
  }else if( yyact == YYNSTATE + YYNRULE + 1 ){
    yy_accept(yypParser);
  }
}

/*
** The following code executes when the parse fails
*/
static void yy_parse_failed(
  yyParser *yypParser           /* The parser */

){
  ParseARG_FETCH;
#ifndef NDEBUG
  if( yyTraceFILE ){
    fprintf(yyTraceFILE,"%sFail!\n",yyTracePrompt);
  }
#endif
  while( yypParser->yyidx>=0 ) yy_pop_parser_stack(yypParser);
  /* Here code is inserted which will be executed whenever the
  ** parser fails */
%%
  ParseARG_STORE; /* Suppress warning about unused %extra_argument variable */
}

/*
** The following code executes when a syntax error first occurs.
*/
static void yy_syntax_error(
  yyParser *yypParser,           /* The parser */
  int yymajor,                   /* The major type of the error token */
  YYMINORTYPE yyminor            /* The minor type of the error token */

){
  ParseARG_FETCH;
#define TOKEN (yyminor.yy0)
%%
  ParseARG_STORE; /* Suppress warning about unused %extra_argument variable */
}

/*
** The following is executed when the parser accepts
*/
static void yy_accept(
  yyParser *yypParser           /* The parser */

){
  ParseARG_FETCH;
#ifndef NDEBUG
  if( yyTraceFILE ){
    fprintf(yyTraceFILE,"%sAccept!\n",yyTracePrompt);
  }
#endif
  while( yypParser->yyidx>=0 ) yy_pop_parser_stack(yypParser);
  /* Here code is inserted which will be executed whenever the
  ** parser accepts */
%%
  ParseARG_STORE; /* Suppress warning about unused %extra_argument variable */
}

/* The main parser program.
** The first argument is a pointer to a structure obtained from
** "ParseAlloc" which describes the current state of the parser.
** The second argument is the major token number.  The third is
** the minor token.  The fourth optional argument is whatever the
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496

497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
** Outputs:
** None.
*/
void Parse(
  void *yyp,                   /* The parser */
  int yymajor,                 /* The major token code number */
  ParseTOKENTYPE yyminor       /* The value for the token */
  ParseANSIARGDECL
){
  YYMINORTYPE yyminorunion;
  int yyact;            /* The parser action. */
  int yyendofinput;     /* True if we are at the end of input */
  int yyerrorhit = 0;   /* True if yymajor has invoked an error */
  yyParser *yypParser;  /* The parser */

  /* (re)initialize the parser, if necessary */
  yypParser = (yyParser*)yyp;
  if( yypParser->idx<0 ){
    if( yymajor==0 ) return;
    yypParser->idx = 0;
    yypParser->errcnt = -1;
    yypParser->top = &yypParser->stack[0];
    yypParser->top->stateno = 0;
    yypParser->top->major = 0;
  }
  yyminorunion.yy0 = yyminor;
  yyendofinput = (yymajor==0);


#ifndef NDEBUG
  if( yyTraceFILE ){
    fprintf(yyTraceFILE,"%sInput %s\n",yyTracePrompt,yyTokenName[yymajor]);
  }
#endif

  do{
    yyact = yy_find_parser_action(yypParser,yymajor);
    if( yyact<YYNSTATE ){
      yy_shift(yypParser,yyact,yymajor,&yyminorunion);
      yypParser->errcnt--;
      if( yyendofinput && yypParser->idx>=0 ){
        yymajor = 0;
      }else{
        yymajor = YYNOCODE;
      }
    }else if( yyact < YYNSTATE + YYNRULE ){
      yy_reduce(yypParser,yyact-YYNSTATE ParseARGDECL);
    }else if( yyact == YY_ERROR_ACTION ){
#ifndef NDEBUG
      if( yyTraceFILE ){
        fprintf(yyTraceFILE,"%sSyntax Error!\n",yyTracePrompt);
      }
#endif
#ifdef YYERRORSYMBOL







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479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
** Outputs:
** None.
*/
void Parse(
  void *yyp,                   /* The parser */
  int yymajor,                 /* The major token code number */
  ParseTOKENTYPE yyminor       /* The value for the token */
  ParseARG_PDECL               /* Optional %extra_argument parameter */
){
  YYMINORTYPE yyminorunion;
  int yyact;            /* The parser action. */
  int yyendofinput;     /* True if we are at the end of input */
  int yyerrorhit = 0;   /* True if yymajor has invoked an error */
  yyParser *yypParser;  /* The parser */

  /* (re)initialize the parser, if necessary */
  yypParser = (yyParser*)yyp;
  if( yypParser->yyidx<0 ){
    if( yymajor==0 ) return;
    yypParser->yyidx = 0;
    yypParser->yyerrcnt = -1;
    yypParser->yytop = &yypParser->yystack[0];
    yypParser->yytop->stateno = 0;
    yypParser->yytop->major = 0;
  }
  yyminorunion.yy0 = yyminor;
  yyendofinput = (yymajor==0);
  ParseARG_STORE;

#ifndef NDEBUG
  if( yyTraceFILE ){
    fprintf(yyTraceFILE,"%sInput %s\n",yyTracePrompt,yyTokenName[yymajor]);
  }
#endif

  do{
    yyact = yy_find_parser_action(yypParser,yymajor);
    if( yyact<YYNSTATE ){
      yy_shift(yypParser,yyact,yymajor,&yyminorunion);
      yypParser->yyerrcnt--;
      if( yyendofinput && yypParser->yyidx>=0 ){
        yymajor = 0;
      }else{
        yymajor = YYNOCODE;
      }
    }else if( yyact < YYNSTATE + YYNRULE ){
      yy_reduce(yypParser,yyact-YYNSTATE);
    }else if( yyact == YY_ERROR_ACTION ){
#ifndef NDEBUG
      if( yyTraceFILE ){
        fprintf(yyTraceFILE,"%sSyntax Error!\n",yyTracePrompt);
      }
#endif
#ifdef YYERRORSYMBOL
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
      **  * Set the error count to three.
      **
      **  * Begin accepting and shifting new tokens.  No new error
      **    processing will occur until three tokens have been
      **    shifted successfully.
      **
      */
      if( yypParser->errcnt<0 ){
        yy_syntax_error(yypParser,yymajor,yyminorunion ParseARGDECL);
      }
      if( yypParser->top->major==YYERRORSYMBOL || yyerrorhit ){
#ifndef NDEBUG
        if( yyTraceFILE ){
          fprintf(yyTraceFILE,"%sDiscard input token %s\n",
             yyTracePrompt,yyTokenName[yymajor]);
        }
#endif
        yy_destructor(yymajor,&yyminorunion);
        yymajor = YYNOCODE;
      }else{
         while(
          yypParser->idx >= 0 &&
          yypParser->top->major != YYERRORSYMBOL &&
          (yyact = yy_find_parser_action(yypParser,YYERRORSYMBOL)) >= YYNSTATE
        ){
          yy_pop_parser_stack(yypParser);
        }
        if( yypParser->idx < 0 || yymajor==0 ){
          yy_destructor(yymajor,&yyminorunion);
          yy_parse_failed(yypParser ParseARGDECL);
          yymajor = YYNOCODE;
        }else if( yypParser->top->major!=YYERRORSYMBOL ){
          YYMINORTYPE u2;
          u2.YYERRSYMDT = 0;
          yy_shift(yypParser,yyact,YYERRORSYMBOL,&u2);
        }
      }
      yypParser->errcnt = 3;
      yyerrorhit = 1;
#else  /* YYERRORSYMBOL is not defined */
      /* This is what we do if the grammar does not define ERROR:
      **
      **  * Report an error message, and throw away the input token.
      **
      **  * If the input token is $, then fail the parse.
      **
      ** As before, subsequent error messages are suppressed until
      ** three input tokens have been successfully shifted.
      */
      if( yypParser->errcnt<=0 ){
        yy_syntax_error(yypParser,yymajor,yyminorunion ParseARGDECL);
      }
      yypParser->errcnt = 3;
      yy_destructor(yymajor,&yyminorunion);
      if( yyendofinput ){
        yy_parse_failed(yypParser ParseARGDECL);
      }
      yymajor = YYNOCODE;
#endif
    }else{
      yy_accept(yypParser ParseARGDECL);
      yymajor = YYNOCODE;
    }
  }while( yymajor!=YYNOCODE && yypParser->idx>=0 );
  return;
}







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|


545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
      **  * Set the error count to three.
      **
      **  * Begin accepting and shifting new tokens.  No new error
      **    processing will occur until three tokens have been
      **    shifted successfully.
      **
      */
      if( yypParser->yyerrcnt<0 ){
        yy_syntax_error(yypParser,yymajor,yyminorunion);
      }
      if( yypParser->yytop->major==YYERRORSYMBOL || yyerrorhit ){
#ifndef NDEBUG
        if( yyTraceFILE ){
          fprintf(yyTraceFILE,"%sDiscard input token %s\n",
             yyTracePrompt,yyTokenName[yymajor]);
        }
#endif
        yy_destructor(yymajor,&yyminorunion);
        yymajor = YYNOCODE;
      }else{
         while(
          yypParser->yyidx >= 0 &&
          yypParser->yytop->major != YYERRORSYMBOL &&
          (yyact = yy_find_parser_action(yypParser,YYERRORSYMBOL)) >= YYNSTATE
        ){
          yy_pop_parser_stack(yypParser);
        }
        if( yypParser->yyidx < 0 || yymajor==0 ){
          yy_destructor(yymajor,&yyminorunion);
          yy_parse_failed(yypParser);
          yymajor = YYNOCODE;
        }else if( yypParser->yytop->major!=YYERRORSYMBOL ){
          YYMINORTYPE u2;
          u2.YYERRSYMDT = 0;
          yy_shift(yypParser,yyact,YYERRORSYMBOL,&u2);
        }
      }
      yypParser->yyerrcnt = 3;
      yyerrorhit = 1;
#else  /* YYERRORSYMBOL is not defined */
      /* This is what we do if the grammar does not define ERROR:
      **
      **  * Report an error message, and throw away the input token.
      **
      **  * If the input token is $, then fail the parse.
      **
      ** As before, subsequent error messages are suppressed until
      ** three input tokens have been successfully shifted.
      */
      if( yypParser->yyerrcnt<=0 ){
        yy_syntax_error(yypParser,yymajor,yyminorunion);
      }
      yypParser->yyerrcnt = 3;
      yy_destructor(yymajor,&yyminorunion);
      if( yyendofinput ){
        yy_parse_failed(yypParser);
      }
      yymajor = YYNOCODE;
#endif
    }else{
      yy_accept(yypParser);
      yymajor = YYNOCODE;
    }
  }while( yymajor!=YYNOCODE && yypParser->yyidx>=0 );
  return;
}