Index: third_party/sqlite/sqlite-src-3080704/tool/lempar.c |
diff --git a/third_party/sqlite/sqlite-src-3080704/tool/lempar.c b/third_party/sqlite/sqlite-src-3080704/tool/lempar.c |
deleted file mode 100644 |
index fe56d2dc1661eb9c2468ab9b0c763238e79f6252..0000000000000000000000000000000000000000 |
--- a/third_party/sqlite/sqlite-src-3080704/tool/lempar.c |
+++ /dev/null |
@@ -1,850 +0,0 @@ |
-/* Driver template for the LEMON parser generator. |
-** The author disclaims copyright to this source code. |
-*/ |
-/* First off, code is included that follows the "include" declaration |
-** in the input grammar file. */ |
-#include <stdio.h> |
-%% |
-/* Next is all token values, in a form suitable for use by makeheaders. |
-** This section will be null unless lemon is run with the -m switch. |
-*/ |
-/* |
-** These constants (all generated automatically by the parser generator) |
-** specify the various kinds of tokens (terminals) that the parser |
-** understands. |
-** |
-** Each symbol here is a terminal symbol in the grammar. |
-*/ |
-%% |
-/* Make sure the INTERFACE macro is defined. |
-*/ |
-#ifndef INTERFACE |
-# define INTERFACE 1 |
-#endif |
-/* The next thing included is series of defines which control |
-** various aspects of the generated parser. |
-** YYCODETYPE is the data type used for storing terminal |
-** and nonterminal numbers. "unsigned char" is |
-** used if there are fewer than 250 terminals |
-** and nonterminals. "int" is used otherwise. |
-** YYNOCODE is a number of type YYCODETYPE which corresponds |
-** to no legal terminal or nonterminal number. This |
-** number is used to fill in empty slots of the hash |
-** table. |
-** YYFALLBACK If defined, this indicates that one or more tokens |
-** have fall-back values which should be used if the |
-** original value of the token will not parse. |
-** YYACTIONTYPE is the data type used for storing terminal |
-** and nonterminal numbers. "unsigned char" is |
-** used if there are fewer than 250 rules and |
-** states combined. "int" is used otherwise. |
-** 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. If |
-** zero the stack is dynamically sized using realloc() |
-** 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) |
-#define YY_ACCEPT_ACTION (YYNSTATE+YYNRULE+1) |
-#define YY_ERROR_ACTION (YYNSTATE+YYNRULE) |
- |
-/* The yyzerominor constant is used to initialize instances of |
-** YYMINORTYPE objects to zero. */ |
-static const YYMINORTYPE yyzerominor = { 0 }; |
- |
-/* Define the yytestcase() macro to be a no-op if is not already defined |
-** otherwise. |
-** |
-** Applications can choose to define yytestcase() in the %include section |
-** to a macro that can assist in verifying code coverage. For production |
-** code the yytestcase() macro should be turned off. But it is useful |
-** for testing. |
-*/ |
-#ifndef yytestcase |
-# define yytestcase(X) |
-#endif |
- |
- |
-/* Next are the tables used to determine what action to take based on the |
-** current state and lookahead token. These tables are used to implement |
-** functions that take a state number and lookahead value and return an |
-** action integer. |
-** |
-** Suppose the action integer is N. Then the action is determined as |
-** follows |
-** |
-** 0 <= N < YYNSTATE Shift N. That is, push the lookahead |
-** token onto the stack and goto state N. |
-** |
-** YYNSTATE <= N < YYNSTATE+YYNRULE Reduce by rule N-YYNSTATE. |
-** |
-** N == YYNSTATE+YYNRULE A syntax error has occurred. |
-** |
-** N == YYNSTATE+YYNRULE+1 The parser accepts its input. |
-** |
-** N == YYNSTATE+YYNRULE+2 No such action. Denotes unused |
-** slots in the yy_action[] table. |
-** |
-** The action table is constructed as a single large table named yy_action[]. |
-** Given state S and lookahead X, the action is computed as |
-** |
-** yy_action[ yy_shift_ofst[S] + X ] |
-** |
-** If the index value yy_shift_ofst[S]+X is out of range or if the value |
-** yy_lookahead[yy_shift_ofst[S]+X] is not equal to X or if yy_shift_ofst[S] |
-** is equal to YY_SHIFT_USE_DFLT, it means that the action is not in the table |
-** and that yy_default[S] should be used instead. |
-** |
-** The formula above is for computing the action when the lookahead is |
-** a terminal symbol. If the lookahead is a non-terminal (as occurs after |
-** a reduce action) then the yy_reduce_ofst[] array is used in place of |
-** the yy_shift_ofst[] array and YY_REDUCE_USE_DFLT is used in place of |
-** YY_SHIFT_USE_DFLT. |
-** |
-** The following are the tables generated in this section: |
-** |
-** yy_action[] A single table containing all actions. |
-** yy_lookahead[] A table containing the lookahead for each entry in |
-** yy_action. Used to detect hash collisions. |
-** yy_shift_ofst[] For each state, the offset into yy_action for |
-** shifting terminals. |
-** yy_reduce_ofst[] For each state, the offset into yy_action for |
-** shifting non-terminals after a reduce. |
-** yy_default[] Default action for each state. |
-*/ |
-%% |
- |
-/* The next table maps tokens into fallback tokens. If a construct |
-** like the following: |
-** |
-** %fallback ID X Y Z. |
-** |
-** appears in the grammar, then ID becomes a fallback token for X, Y, |
-** and Z. Whenever one of the tokens X, Y, or Z is input to the parser |
-** but it does not parse, the type of the token is changed to ID and |
-** the parse is retried before an error is thrown. |
-*/ |
-#ifdef YYFALLBACK |
-static const YYCODETYPE yyFallback[] = { |
-%% |
-}; |
-#endif /* YYFALLBACK */ |
- |
-/* 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. |
-** |
-** + The value of the token stored at this level of the stack. |
-** (In other words, the "major" token.) |
-** |
-** + The semantic value stored at this level of the stack. This is |
-** the information used by the action routines in the grammar. |
-** It is sometimes called the "minor" token. |
-*/ |
-struct yyStackEntry { |
- YYACTIONTYPE stateno; /* The state-number */ |
- YYCODETYPE 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 */ |
-#ifdef YYTRACKMAXSTACKDEPTH |
- int yyidxMax; /* Maximum value of yyidx */ |
-#endif |
- int yyerrcnt; /* Shifts left before out of the error */ |
- ParseARG_SDECL /* A place to hold %extra_argument */ |
-#if YYSTACKDEPTH<=0 |
- int yystksz; /* Current side of the stack */ |
- yyStackEntry *yystack; /* The parser's stack */ |
-#else |
- yyStackEntry yystack[YYSTACKDEPTH]; /* The parser's stack */ |
-#endif |
-}; |
-typedef struct yyParser yyParser; |
- |
-#ifndef NDEBUG |
-#include <stdio.h> |
-static FILE *yyTraceFILE = 0; |
-static char *yyTracePrompt = 0; |
-#endif /* NDEBUG */ |
- |
-#ifndef NDEBUG |
-/* |
-** Turn parser tracing on by giving a stream to which to write the trace |
-** and a prompt to preface each trace message. Tracing is turned off |
-** by making either argument NULL |
-** |
-** Inputs: |
-** <ul> |
-** <li> A FILE* to which trace output should be written. |
-** If NULL, then tracing is turned off. |
-** <li> A prefix string written at the beginning of every |
-** line of trace output. If NULL, then tracing is |
-** turned off. |
-** </ul> |
-** |
-** Outputs: |
-** None. |
-*/ |
-void ParseTrace(FILE *TraceFILE, char *zTracePrompt){ |
- yyTraceFILE = TraceFILE; |
- yyTracePrompt = zTracePrompt; |
- if( yyTraceFILE==0 ) yyTracePrompt = 0; |
- else if( yyTracePrompt==0 ) yyTraceFILE = 0; |
-} |
-#endif /* NDEBUG */ |
- |
-#ifndef NDEBUG |
-/* For tracing shifts, the names of all terminals and nonterminals |
-** are required. The following table supplies these names */ |
-static const char *const yyTokenName[] = { |
-%% |
-}; |
-#endif /* NDEBUG */ |
- |
-#ifndef NDEBUG |
-/* For tracing reduce actions, the names of all rules are required. |
-*/ |
-static const char *const yyRuleName[] = { |
-%% |
-}; |
-#endif /* NDEBUG */ |
- |
- |
-#if YYSTACKDEPTH<=0 |
-/* |
-** Try to increase the size of the parser stack. |
-*/ |
-static void yyGrowStack(yyParser *p){ |
- int newSize; |
- yyStackEntry *pNew; |
- |
- newSize = p->yystksz*2 + 100; |
- pNew = realloc(p->yystack, newSize*sizeof(pNew[0])); |
- if( pNew ){ |
- p->yystack = pNew; |
- p->yystksz = newSize; |
-#ifndef NDEBUG |
- if( yyTraceFILE ){ |
- fprintf(yyTraceFILE,"%sStack grows to %d entries!\n", |
- yyTracePrompt, p->yystksz); |
- } |
-#endif |
- } |
-} |
-#endif |
- |
-/* |
-** This function allocates a new parser. |
-** The only argument is a pointer to a function which works like |
-** malloc. |
-** |
-** Inputs: |
-** A pointer to the function used to allocate memory. |
-** |
-** Outputs: |
-** 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; |
-#ifdef YYTRACKMAXSTACKDEPTH |
- pParser->yyidxMax = 0; |
-#endif |
-#if YYSTACKDEPTH<=0 |
- pParser->yystack = NULL; |
- pParser->yystksz = 0; |
- yyGrowStack(pParser); |
-#endif |
- } |
- 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 |
-** the value. |
-*/ |
-static void yy_destructor( |
- yyParser *yypParser, /* The parser */ |
- YYCODETYPE yymajor, /* Type code for object to destroy */ |
- YYMINORTYPE *yypminor /* The object to be destroyed */ |
-){ |
- ParseARG_FETCH; |
- switch( yymajor ){ |
- /* Here is inserted the actions which take place when a |
- ** terminal or non-terminal is destroyed. This can happen |
- ** when the symbol is popped from the stack during a |
- ** reduce or during error processing or when a parser is |
- ** being destroyed before it is finished parsing. |
- ** |
- ** Note: during a reduce, the only symbols destroyed are those |
- ** which appear on the RHS of the rule, but which are not used |
- ** inside the C code. |
- */ |
-%% |
- default: break; /* If no destructor action specified: do nothing */ |
- } |
-} |
- |
-/* |
-** Pop the parser's stack once. |
-** |
-** If there is a destructor routine associated with the token which |
-** 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; |
- yyStackEntry *yytos = &pParser->yystack[pParser->yyidx]; |
- |
- if( pParser->yyidx<0 ) return 0; |
-#ifndef NDEBUG |
- if( yyTraceFILE && pParser->yyidx>=0 ){ |
- fprintf(yyTraceFILE,"%sPopping %s\n", |
- yyTracePrompt, |
- yyTokenName[yytos->major]); |
- } |
-#endif |
- yymajor = yytos->major; |
- yy_destructor(pParser, yymajor, &yytos->minor); |
- pParser->yyidx--; |
- return yymajor; |
-} |
- |
-/* |
-** Deallocate and destroy a parser. Destructors are all called for |
-** all stack elements before shutting the parser down. |
-** |
-** Inputs: |
-** <ul> |
-** <li> A pointer to the parser. This should be a pointer |
-** obtained from ParseAlloc. |
-** <li> A pointer to a function used to reclaim memory obtained |
-** from malloc. |
-** </ul> |
-*/ |
-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); |
-#if YYSTACKDEPTH<=0 |
- free(pParser->yystack); |
-#endif |
- (*freeProc)((void*)pParser); |
-} |
- |
-/* |
-** Return the peak depth of the stack for a parser. |
-*/ |
-#ifdef YYTRACKMAXSTACKDEPTH |
-int ParseStackPeak(void *p){ |
- yyParser *pParser = (yyParser*)p; |
- return pParser->yyidxMax; |
-} |
-#endif |
- |
-/* |
-** Find the appropriate action for a parser given the terminal |
-** look-ahead token iLookAhead. |
-** |
-** 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_shift_action( |
- yyParser *pParser, /* The parser */ |
- YYCODETYPE iLookAhead /* The look-ahead token */ |
-){ |
- int i; |
- int stateno = pParser->yystack[pParser->yyidx].stateno; |
- |
- if( stateno>YY_SHIFT_COUNT |
- || (i = yy_shift_ofst[stateno])==YY_SHIFT_USE_DFLT ){ |
- return yy_default[stateno]; |
- } |
- assert( iLookAhead!=YYNOCODE ); |
- i += iLookAhead; |
- if( i<0 || i>=YY_ACTTAB_COUNT || yy_lookahead[i]!=iLookAhead ){ |
- if( iLookAhead>0 ){ |
-#ifdef YYFALLBACK |
- YYCODETYPE iFallback; /* Fallback token */ |
- if( iLookAhead<sizeof(yyFallback)/sizeof(yyFallback[0]) |
- && (iFallback = yyFallback[iLookAhead])!=0 ){ |
-#ifndef NDEBUG |
- if( yyTraceFILE ){ |
- fprintf(yyTraceFILE, "%sFALLBACK %s => %s\n", |
- yyTracePrompt, yyTokenName[iLookAhead], yyTokenName[iFallback]); |
- } |
-#endif |
- return yy_find_shift_action(pParser, iFallback); |
- } |
-#endif |
-#ifdef YYWILDCARD |
- { |
- int j = i - iLookAhead + YYWILDCARD; |
- if( |
-#if YY_SHIFT_MIN+YYWILDCARD<0 |
- j>=0 && |
-#endif |
-#if YY_SHIFT_MAX+YYWILDCARD>=YY_ACTTAB_COUNT |
- j<YY_ACTTAB_COUNT && |
-#endif |
- yy_lookahead[j]==YYWILDCARD |
- ){ |
-#ifndef NDEBUG |
- if( yyTraceFILE ){ |
- fprintf(yyTraceFILE, "%sWILDCARD %s => %s\n", |
- yyTracePrompt, yyTokenName[iLookAhead], yyTokenName[YYWILDCARD]); |
- } |
-#endif /* NDEBUG */ |
- return yy_action[j]; |
- } |
- } |
-#endif /* YYWILDCARD */ |
- } |
- return yy_default[stateno]; |
- }else{ |
- return yy_action[i]; |
- } |
-} |
- |
-/* |
-** Find the appropriate action for a parser given the non-terminal |
-** look-ahead token iLookAhead. |
-** |
-** 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_reduce_action( |
- int stateno, /* Current state number */ |
- YYCODETYPE iLookAhead /* The look-ahead token */ |
-){ |
- int i; |
-#ifdef YYERRORSYMBOL |
- if( stateno>YY_REDUCE_COUNT ){ |
- return yy_default[stateno]; |
- } |
-#else |
- assert( stateno<=YY_REDUCE_COUNT ); |
-#endif |
- i = yy_reduce_ofst[stateno]; |
- assert( i!=YY_REDUCE_USE_DFLT ); |
- assert( iLookAhead!=YYNOCODE ); |
- i += iLookAhead; |
-#ifdef YYERRORSYMBOL |
- if( i<0 || i>=YY_ACTTAB_COUNT || yy_lookahead[i]!=iLookAhead ){ |
- return yy_default[stateno]; |
- } |
-#else |
- assert( i>=0 && i<YY_ACTTAB_COUNT ); |
- assert( yy_lookahead[i]==iLookAhead ); |
-#endif |
- return yy_action[i]; |
-} |
- |
-/* |
-** The following routine is called if the stack overflows. |
-*/ |
-static void yyStackOverflow(yyParser *yypParser, YYMINORTYPE *yypMinor){ |
- ParseARG_FETCH; |
- yypParser->yyidx--; |
-#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 */ |
-} |
- |
-/* |
-** Perform a shift action. |
-*/ |
-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 to the minor token to shift in */ |
-){ |
- yyStackEntry *yytos; |
- yypParser->yyidx++; |
-#ifdef YYTRACKMAXSTACKDEPTH |
- if( yypParser->yyidx>yypParser->yyidxMax ){ |
- yypParser->yyidxMax = yypParser->yyidx; |
- } |
-#endif |
-#if YYSTACKDEPTH>0 |
- if( yypParser->yyidx>=YYSTACKDEPTH ){ |
- yyStackOverflow(yypParser, yypMinor); |
- return; |
- } |
-#else |
- if( yypParser->yyidx>=yypParser->yystksz ){ |
- yyGrowStack(yypParser); |
- if( yypParser->yyidx>=yypParser->yystksz ){ |
- yyStackOverflow(yypParser, yypMinor); |
- return; |
- } |
- } |
-#endif |
- yytos = &yypParser->yystack[yypParser->yyidx]; |
- yytos->stateno = (YYACTIONTYPE)yyNewState; |
- yytos->major = (YYCODETYPE)yyMajor; |
- yytos->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 const 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->yystack[yypParser->yyidx]; |
-#ifndef NDEBUG |
- if( yyTraceFILE && yyruleno>=0 |
- && yyruleno<(int)(sizeof(yyRuleName)/sizeof(yyRuleName[0])) ){ |
- fprintf(yyTraceFILE, "%sReduce [%s].\n", yyTracePrompt, |
- yyRuleName[yyruleno]); |
- } |
-#endif /* NDEBUG */ |
- |
- /* Silence complaints from purify about yygotominor being uninitialized |
- ** in some cases when it is copied into the stack after the following |
- ** switch. yygotominor is uninitialized when a rule reduces that does |
- ** not set the value of its left-hand side nonterminal. Leaving the |
- ** value of the nonterminal uninitialized is utterly harmless as long |
- ** as the value is never used. So really the only thing this code |
- ** accomplishes is to quieten purify. |
- ** |
- ** 2007-01-16: The wireshark project (www.wireshark.org) reports that |
- ** without this code, their parser segfaults. I'm not sure what there |
- ** parser is doing to make this happen. This is the second bug report |
- ** from wireshark this week. Clearly they are stressing Lemon in ways |
- ** that it has not been previously stressed... (SQLite ticket #2172) |
- */ |
- /*memset(&yygotominor, 0, sizeof(yygotominor));*/ |
- yygotominor = yyzerominor; |
- |
- |
- switch( yyruleno ){ |
- /* Beginning here are the reduction cases. A typical example |
- ** follows: |
- ** case 0: |
- ** #line <lineno> <grammarfile> |
- ** { ... } // User supplied code |
- ** #line <lineno> <thisfile> |
- ** break; |
- */ |
-%% |
- }; |
- yygoto = yyRuleInfo[yyruleno].lhs; |
- yysize = yyRuleInfo[yyruleno].nrhs; |
- yypParser->yyidx -= yysize; |
- yyact = yy_find_reduce_action(yymsp[-yysize].stateno,(YYCODETYPE)yygoto); |
- if( yyact < YYNSTATE ){ |
-#ifdef NDEBUG |
- /* If we are not debugging and the reduce action popped at least |
- ** one element off the stack, then we can push the new element back |
- ** onto the stack here, and skip the stack overflow test in yy_shift(). |
- ** That gives a significant speed improvement. */ |
- if( yysize ){ |
- yypParser->yyidx++; |
- yymsp -= yysize-1; |
- yymsp->stateno = (YYACTIONTYPE)yyact; |
- yymsp->major = (YYCODETYPE)yygoto; |
- yymsp->minor = yygotominor; |
- }else |
-#endif |
- { |
- yy_shift(yypParser,yyact,yygoto,&yygotominor); |
- } |
- }else{ |
- assert( yyact == YYNSTATE + YYNRULE + 1 ); |
- yy_accept(yypParser); |
- } |
-} |
- |
-/* |
-** The following code executes when the parse fails |
-*/ |
-#ifndef YYNOERRORRECOVERY |
-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 */ |
-} |
-#endif /* YYNOERRORRECOVERY */ |
- |
-/* |
-** 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 |
-** user wants (and specified in the grammar) and is available for |
-** use by the action routines. |
-** |
-** Inputs: |
-** <ul> |
-** <li> A pointer to the parser (an opaque structure.) |
-** <li> The major token number. |
-** <li> The minor token number. |
-** <li> An option argument of a grammar-specified type. |
-** </ul> |
-** |
-** 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 */ |
-#ifdef YYERRORSYMBOL |
- int yyerrorhit = 0; /* True if yymajor has invoked an error */ |
-#endif |
- yyParser *yypParser; /* The parser */ |
- |
- /* (re)initialize the parser, if necessary */ |
- yypParser = (yyParser*)yyp; |
- if( yypParser->yyidx<0 ){ |
-#if YYSTACKDEPTH<=0 |
- if( yypParser->yystksz <=0 ){ |
- /*memset(&yyminorunion, 0, sizeof(yyminorunion));*/ |
- yyminorunion = yyzerominor; |
- yyStackOverflow(yypParser, &yyminorunion); |
- return; |
- } |
-#endif |
- yypParser->yyidx = 0; |
- yypParser->yyerrcnt = -1; |
- yypParser->yystack[0].stateno = 0; |
- yypParser->yystack[0].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_shift_action(yypParser,(YYCODETYPE)yymajor); |
- if( yyact<YYNSTATE ){ |
- assert( !yyendofinput ); /* Impossible to shift the $ token */ |
- yy_shift(yypParser,yyact,yymajor,&yyminorunion); |
- yypParser->yyerrcnt--; |
- yymajor = YYNOCODE; |
- }else if( yyact < YYNSTATE + YYNRULE ){ |
- yy_reduce(yypParser,yyact-YYNSTATE); |
- }else{ |
- assert( yyact == YY_ERROR_ACTION ); |
-#ifdef YYERRORSYMBOL |
- int yymx; |
-#endif |
-#ifndef NDEBUG |
- if( yyTraceFILE ){ |
- fprintf(yyTraceFILE,"%sSyntax Error!\n",yyTracePrompt); |
- } |
-#endif |
-#ifdef YYERRORSYMBOL |
- /* A syntax error has occurred. |
- ** The response to an error depends upon whether or not the |
- ** grammar defines an error token "ERROR". |
- ** |
- ** This is what we do if the grammar does define ERROR: |
- ** |
- ** * Call the %syntax_error function. |
- ** |
- ** * Begin popping the stack until we enter a state where |
- ** it is legal to shift the error symbol, then shift |
- ** the error symbol. |
- ** |
- ** * 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); |
- } |
- yymx = yypParser->yystack[yypParser->yyidx].major; |
- if( yymx==YYERRORSYMBOL || yyerrorhit ){ |
-#ifndef NDEBUG |
- if( yyTraceFILE ){ |
- fprintf(yyTraceFILE,"%sDiscard input token %s\n", |
- yyTracePrompt,yyTokenName[yymajor]); |
- } |
-#endif |
- yy_destructor(yypParser, (YYCODETYPE)yymajor,&yyminorunion); |
- yymajor = YYNOCODE; |
- }else{ |
- while( |
- yypParser->yyidx >= 0 && |
- yymx != YYERRORSYMBOL && |
- (yyact = yy_find_reduce_action( |
- yypParser->yystack[yypParser->yyidx].stateno, |
- YYERRORSYMBOL)) >= YYNSTATE |
- ){ |
- yy_pop_parser_stack(yypParser); |
- } |
- if( yypParser->yyidx < 0 || yymajor==0 ){ |
- yy_destructor(yypParser,(YYCODETYPE)yymajor,&yyminorunion); |
- yy_parse_failed(yypParser); |
- yymajor = YYNOCODE; |
- }else if( yymx!=YYERRORSYMBOL ){ |
- YYMINORTYPE u2; |
- u2.YYERRSYMDT = 0; |
- yy_shift(yypParser,yyact,YYERRORSYMBOL,&u2); |
- } |
- } |
- yypParser->yyerrcnt = 3; |
- yyerrorhit = 1; |
-#elif defined(YYNOERRORRECOVERY) |
- /* If the YYNOERRORRECOVERY macro is defined, then do not attempt to |
- ** do any kind of error recovery. Instead, simply invoke the syntax |
- ** error routine and continue going as if nothing had happened. |
- ** |
- ** Applications can set this macro (for example inside %include) if |
- ** they intend to abandon the parse upon the first syntax error seen. |
- */ |
- yy_syntax_error(yypParser,yymajor,yyminorunion); |
- yy_destructor(yypParser,(YYCODETYPE)yymajor,&yyminorunion); |
- yymajor = YYNOCODE; |
- |
-#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(yypParser,(YYCODETYPE)yymajor,&yyminorunion); |
- if( yyendofinput ){ |
- yy_parse_failed(yypParser); |
- } |
- yymajor = YYNOCODE; |
-#endif |
- } |
- }while( yymajor!=YYNOCODE && yypParser->yyidx>=0 ); |
- return; |
-} |