b4_copyright([Skeleton parser for GLR parsing with Bison],
[2002, 2003, 2004, 2005])
[
-/* This is the parser code for GLR (Generalized LR) parser. */
+/* This is the parser code for GLR (Generalized LR) parser. */
]b4_identification
right-hand sides. Unlike the standard yacc.c template,
here we set the default value of $$ to a zeroed-out value.
Since the default value is undefined, this behavior is
- technically correct. */
+ technically correct. */
static YYSTYPE yyval_default;
/* Copy the second part of user declarations. */
# define YYASSERT(condition) ((void) ((condition) || (abort (), 0)))
#endif
-/* YYFINAL -- State number of the termination state. */
+/* YYFINAL -- State number of the termination state. */
#define YYFINAL ]b4_final_state_number[
/* YYLAST -- Last index in YYTABLE. */
#define YYLAST ]b4_last[
-/* YYNTOKENS -- Number of terminals. */
+/* YYNTOKENS -- Number of terminals. */
#define YYNTOKENS ]b4_tokens_number[
-/* YYNNTS -- Number of nonterminals. */
+/* YYNNTS -- Number of nonterminals. */
#define YYNNTS ]b4_nterms_number[
-/* YYNRULES -- Number of rules. */
+/* YYNRULES -- Number of rules. */
#define YYNRULES ]b4_rules_number[
-/* YYNRULES -- Number of states. */
+/* YYNRULES -- Number of states. */
#define YYNSTATES ]b4_states_number[
-/* YYMAXRHS -- Maximum number of symbols on right-hand side of rule. */
+/* YYMAXRHS -- Maximum number of symbols on right-hand side of rule. */
#define YYMAXRHS ]b4_r2_max[
/* YYMAXLEFT -- Maximum number of symbols to the left of a handle
- accessed by $0, $-1, etc., in any rule. */
+ accessed by $0, $-1, etc., in any rule. */
#define YYMAXLEFT ]b4_max_left_semantic_context[
/* YYTRANSLATE(X) -- Bison symbol number corresponding to X. */
]b4_prhs[
};
-/* YYRHS -- A `-1'-separated list of the rules' RHS. */
+/* YYRHS -- A `-1'-separated list of the rules' RHS. */
static const ]b4_int_type_for([b4_rhs])[ yyrhs[] =
{
]b4_rhs[
#if YYDEBUG || YYERROR_VERBOSE || YYTOKEN_TABLE
/* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
- First, the terminals, then, starting at YYNTOKENS, nonterminals. */
+ First, the terminals, then, starting at YYNTOKENS, nonterminals. */
static const char *const yytname[] =
{
]b4_tname[
]b4_r2[
};
-/* YYDPREC[RULE-NUM] -- Dynamic precedence of rule #RULE-NUM (0 if none). */
+/* YYDPREC[RULE-NUM] -- Dynamic precedence of rule #RULE-NUM (0 if none). */
static const ]b4_int_type_for([b4_dprec])[ yydprec[] =
{
]b4_dprec[
};
-/* YYMERGER[RULE-NUM] -- Index of merging function for rule #RULE-NUM. */
+/* YYMERGER[RULE-NUM] -- Index of merging function for rule #RULE-NUM. */
static const ]b4_int_type_for([b4_merger])[ yymerger[] =
{
]b4_merger[
]b4_defact[
};
-/* YYPDEFGOTO[NTERM-NUM]. */
+/* YYPDEFGOTO[NTERM-NUM]. */
static const ]b4_int_type_for([b4_defgoto])[ yydefgoto[] =
{
]b4_defgoto[
YYFPRINTF Args; \
} while (YYID (0))
-]b4_yysymprint_generate([b4_c_ansi_function_def])[
+]b4_yy_symbol_print_generate([b4_c_ansi_function_def])[
# define YY_SYMBOL_PRINT(Title, Type, Value, Location) \
do { \
if (yydebug) \
{ \
YYFPRINTF (stderr, "%s ", Title); \
- yysymprint (stderr, \
+ yy_symbol_print (stderr, \
Type, Value]b4_location_if([, Location])[]b4_user_args[); \
YYFPRINTF (stderr, "\n"); \
} \
allocation. This is to allow allocation and initialization
to be completed by functions that call yyexpandGLRStack before the
stack is expanded, thus insuring that all necessary pointers get
- properly redirected to new data. */
+ properly redirected to new data. */
#define YYHEADROOM 2
#ifndef YYSTACKEXPANDABLE
typedef struct yyGLRStack yyGLRStack;
struct yyGLRState {
- /** Type tag: always true. */
+ /** Type tag: always true. */
yybool yyisState;
- /** Type tag for yysemantics. If true, yysval applies, otherwise
- * yyfirstVal applies. */
+ /** Type tag for yysemantics. If true, yysval applies, otherwise
+ * yyfirstVal applies. */
yybool yyresolved;
- /** Number of corresponding LALR(1) machine state. */
+ /** Number of corresponding LALR(1) machine state. */
yyStateNum yylrState;
/** Preceding state in this stack */
yyGLRState* yypred;
union {
/** First in a chain of alternative reductions producing the
* non-terminal corresponding to this state, threaded through
- * yynext. */
+ * yynext. */
yySemanticOption* yyfirstVal;
- /** Semantic value for this state. */
+ /** Semantic value for this state. */
YYSTYPE yysval;
} yysemantics;
- /** Source location for this state. */
+ /** Source location for this state. */
YYLTYPE yyloc;
};
};
struct yySemanticOption {
- /** Type tag: always false. */
+ /** Type tag: always false. */
yybool yyisState;
/** Rule number for this reduction */
yyRuleNum yyrule;
- /** The last RHS state in the list of states to be reduced. */
+ /** The last RHS state in the list of states to be reduced. */
yyGLRState* yystate;
- /** Next sibling in chain of options. To facilitate merging,
- * options are chained in decreasing order by address. */
+ /** Next sibling in chain of options. To facilitate merging,
+ * options are chained in decreasing order by address. */
yySemanticOption* yynext;
};
-/** Type of the items in the GLR stack. The yyisState field
- * indicates which item of the union is valid. */
+/** Type of the items in the GLR stack. The yyisState field
+ * indicates which item of the union is valid. */
union yyGLRStackItem {
yyGLRState yystate;
yySemanticOption yyoption;
/** Fill in YYVSP[YYLOW1 .. YYLOW0-1] from the chain of states starting
* at YYVSP[YYLOW0].yystate.yypred. Leaves YYVSP[YYLOW1].yystate.yypred
- * containing the pointer to the next state in the chain. */
+ * containing the pointer to the next state in the chain. */
static void yyfillin (yyGLRStackItem *, int, int) __attribute__ ((__unused__));
static void
yyfillin (yyGLRStackItem *yyvsp, int yylow0, int yylow1)
/** Perform user action for rule number YYN, with RHS length YYRHSLEN,
* and top stack item YYVSP. YYLVALP points to place to put semantic
* value ($$), and yylocp points to place for location information
- * (@@$). Returns yyok for normal return, yyaccept for YYACCEPT,
- * yyerr for YYERROR, yyabort for YYABORT. */
+ * (@@$). Returns yyok for normal return, yyaccept for YYACCEPT,
+ * yyerr for YYERROR, yyabort for YYABORT. */
/*ARGSUSED*/ static YYRESULTTAG
yyuserAction (yyRuleNum yyn, int yyrhslen, yyGLRStackItem* yyvsp,
YYSTYPE* yyvalp,
if (yydebug)
{
YYFPRINTF (stderr, "%s unresolved ", yymsg);
- yysymprint (stderr, yystos[yys->yylrState],
+ yy_symbol_print (stderr, yystos[yys->yylrState],
&yys->yysemantics.yysval]b4_location_if([, &yys->yyloc])[]b4_user_args[);
YYFPRINTF (stderr, "\n");
}
}
}
-/** Left-hand-side symbol for rule #RULE. */
+/** Left-hand-side symbol for rule #RULE. */
static inline yySymbol
yylhsNonterm (yyRuleNum yyrule)
{
[((yystate) == YYPACT_NINF)])[
/** True iff LR state STATE has only a default reduction (regardless
- * of token). */
+ * of token). */
static inline yybool
yyisDefaultedState (yyStateNum yystate)
{
return yyis_pact_ninf (yypact[yystate]);
}
-/** The default reduction for STATE, assuming it has one. */
+/** The default reduction for STATE, assuming it has one. */
static inline yyRuleNum
yydefaultAction (yyStateNum yystate)
{
/* GLRStacks */
-/** Initialize SET to a singleton set containing an empty stack. */
+/** Initialize SET to a singleton set containing an empty stack. */
static yybool
yyinitStateSet (yyGLRStateSet* yyset)
{
}
/** Initialize STACK to a single empty stack, with total maximum
- * capacity for all stacks of SIZE. */
+ * capacity for all stacks of SIZE. */
static yybool
yyinitGLRStack (yyGLRStack* yystackp, size_t yysize)
{
stack from outside should be considered invalid after this call.
We always expand when there are 1 or fewer items left AFTER an
allocation, so that we can avoid having external pointers exist
- across an allocation. */
+ across an allocation. */
static void
yyexpandGLRStack (yyGLRStack* yystackp)
{
/** Assuming that S is a GLRState somewhere on STACK, update the
* splitpoint of STACK, if needed, so that it is at least as deep as
- * S. */
+ * S. */
static inline void
yyupdateSplit (yyGLRStack* yystackp, yyGLRState* yys)
{
yystackp->yysplitPoint = yys;
}
-/** Invalidate stack #K in STACK. */
+/** Invalidate stack #K in STACK. */
static inline void
yymarkStackDeleted (yyGLRStack* yystackp, size_t yyk)
{
/** Undelete the last stack that was marked as deleted. Can only be
done once after a deletion, and only when all other stacks have
- been deleted. */
+ been deleted. */
static void
yyundeleteLastStack (yyGLRStack* yystackp)
{
}
/** Shift to a new state on stack #K of STACK, corresponding to LR state
- * LRSTATE, at input position POSN, with (resolved) semantic value SVAL. */
+ * LRSTATE, at input position POSN, with (resolved) semantic value SVAL. */
static inline void
yyglrShift (yyGLRStack* yystackp, size_t yyk, yyStateNum yylrState,
size_t yyposn,
/** Shift stack #K of YYSTACK, to a new state corresponding to LR
* state YYLRSTATE, at input position YYPOSN, with the (unresolved)
- * semantic value of YYRHS under the action for YYRULE. */
+ * semantic value of YYRHS under the action for YYRULE. */
static inline void
yyglrShiftDefer (yyGLRStack* yystackp, size_t yyk, yyStateNum yylrState,
size_t yyposn, yyGLRState* rhs, yyRuleNum yyrule)
yynewState->yysemantics.yyfirstVal = NULL;
yystackp->yytops.yystates[yyk] = yynewState;
- /* Invokes YY_RESERVE_GLRSTACK. */
+ /* Invokes YY_RESERVE_GLRSTACK. */
yyaddDeferredAction (yystackp, yynewState, rhs, yyrule);
}
/** Pop the symbols consumed by reduction #RULE from the top of stack
* #K of STACK, and perform the appropriate semantic action on their
* semantic values. Assumes that all ambiguities in semantic values
- * have been previously resolved. Set *VALP to the resulting value,
+ * have been previously resolved. Set *VALP to the resulting value,
* and *LOCP to the computed location (if any). Return value is as
- * for userAction. */
+ * for userAction. */
static inline YYRESULTTAG
yydoAction (yyGLRStack* yystackp, size_t yyk, yyRuleNum yyrule,
YYSTYPE* yyvalp, YYLTYPE* yylocp]b4_user_formals[)
if (yystackp->yysplitPoint == NULL)
{
- /* Standard special case: single stack. */
+ /* Standard special case: single stack. */
yyGLRStackItem* rhs = (yyGLRStackItem*) yystackp->yytops.yystates[yyk];
YYASSERT (yyk == 0);
yystackp->yynextFree -= yynrhs;
/* At present, doAction is never called in nondeterministic
* mode, so this branch is never taken. It is here in
* anticipation of a future feature that will allow immediate
- * evaluation of selected actions in nondeterministic mode. */
+ * evaluation of selected actions in nondeterministic mode. */
int yyi;
yyGLRState* yys;
yyGLRStackItem yyrhsVals[YYMAXRHS + YYMAXLEFT + 1];
yys = yyrhsVals[YYMAXRHS + YYMAXLEFT].yystate.yypred
= yystackp->yytops.yystates[yyk];]b4_location_if([[
if (yynrhs == 0)
- /* Set default location. */
+ /* Set default location. */
yyrhsVals[YYMAXRHS + YYMAXLEFT - 1].yystate.yyloc = yys->yyloc;]])[
for (yyi = 0; yyi < yynrhs; yyi += 1)
{
for (yyi = 0; yyi < yynrhs; yyi++)
{
fprintf (stderr, " $%d = ", yyi + 1);
- yysymprint (stderr, yyrhs[yyprhs[yyrule] + yyi],
- &]b4_rhs_value(yynrhs, yyi + 1)[
- ]b4_location_if([, &]b4_rhs_location(yynrhs, yyi + 1))[]dnl
- b4_user_args[);
+ yy_symbol_print (stderr, yyrhs[yyprhs[yyrule] + yyi],
+ &]b4_rhs_value(yynrhs, yyi + 1)[
+ ]b4_location_if([, &]b4_rhs_location(yynrhs, yyi + 1))[]dnl
+ b4_user_args[);
fprintf (stderr, "\n");
}
}
* the new state. If the new state would have an identical input
* position, LR state, and predecessor to an existing state on the stack,
* it is identified with that existing state, eliminating stack #K from
- * the STACK. In this case, the (necessarily deferred) semantic value is
+ * the STACK. In this case, the (necessarily deferred) semantic value is
* added to the options for the existing state's semantic value.
*/
static inline YYRESULTTAG
yyupdateSplit (yystackp, yys);
yynewLRState = yyLRgotoState (yys->yylrState, yylhsNonterm (yyrule));
YYDPRINTF ((stderr,
- "Reduced stack %lu by rule #%d; action deferred. Now in state %d.\n",
+ "Reduced stack %lu by rule #%d; action deferred. Now in state %d.\n",
(unsigned long int) yyk, yyrule - 1, yynewLRState));
for (yyi = 0; yyi < yystackp->yytops.yysize; yyi += 1)
if (yyi != yyk && yystackp->yytops.yystates[yyi] != NULL)
/** True iff Y0 and Y1 represent identical options at the top level.
* That is, they represent the same rule applied to RHS symbols
- * that produce the same terminal symbols. */
+ * that produce the same terminal symbols. */
static yybool
yyidenticalOptions (yySemanticOption* yyy0, yySemanticOption* yyy1)
{
}
/** Assuming identicalOptions (Y0,Y1), destructively merge the
- * alternative semantic values for the RHS-symbols of Y1 and Y0. */
+ * alternative semantic values for the RHS-symbols of Y1 and Y0. */
static void
yymergeOptionSets (yySemanticOption* yyy0, yySemanticOption* yyy1)
{
/** Y0 and Y1 represent two possible actions to take in a given
* parsing state; return 0 if no combination is possible,
- * 1 if user-mergeable, 2 if Y0 is preferred, 3 if Y1 is preferred. */
+ * 1 if user-mergeable, 2 if Y0 is preferred, 3 if Y1 is preferred. */
static int
yypreference (yySemanticOption* y0, yySemanticOption* y1)
{
YYCHK (yyresolveStates (yyopt->yystate, yynrhs, yystackp]b4_user_args[));
yyrhsVals[YYMAXRHS + YYMAXLEFT].yystate.yypred = yyopt->yystate;]b4_location_if([[
if (yynrhs == 0)
- /* Set default location. */
+ /* Set default location. */
yyrhsVals[YYMAXRHS + YYMAXLEFT - 1].yystate.yyloc = yyopt->yystate->yyloc;]])[
return yyuserAction (yyopt->yyrule, yynrhs,
yyrhsVals + YYMAXRHS + YYMAXLEFT - 1,
/** Resolve the ambiguity represented by OPTIONLIST, perform the indicated
- * actions, and return the result. */
+ * actions, and return the result. */
static YYRESULTTAG
yyresolveValue (yySemanticOption* yyoptionList, yyGLRStack* yystackp,
YYSTYPE* yyvalp, YYLTYPE* yylocp]b4_user_formals[)
if (*yytokenp != YYEMPTY)
{]b4_location_if([[
/* We throw away the lookahead, but the error range
- of the shifted error token must take it into account. */
+ of the shifted error token must take it into account. */
yyGLRState *yys = yystackp->yytops.yystates[0];
yyGLRStackItem yyerror_range[3];
yyerror_range[1].yystate.yyloc = yys->yyloc;
yyremoveDeletes (yystackp);
yycompressStack (yystackp);
- /* Now pop stack until we find a state that shifts the error token. */
+ /* Now pop stack until we find a state that shifts the error token. */
yystackp->yyerrState = 3;
while (yystackp->yytops.yystates[0] != NULL)
{
m4_ifdef([b4_initial_action], [
m4_pushdef([b4_at_dollar], [yylloc])dnl
m4_pushdef([b4_dollar_dollar], [yylval])dnl
- /* User initialization code. */
+ /* User initialization code. */
b4_initial_action
m4_popdef([b4_dollar_dollar])dnl
m4_popdef([b4_at_dollar])dnl
b4_copyright([Skeleton parser for GLR parsing with Bison],
[2002, 2003, 2004, 2005])[
-/* As a special exception, when this parser skeleton is copied by
- Bison into a Bison output file, you may use that output file
- without restriction. This special exception was added by the Free
- Software Foundation for C GLR parsers in version 2.2 of Bison. */
-
/* C GLR parser skeleton written by Paul Hilfinger. */
]
projects / bison.git / blobdiff