-b4_defines_if([b4_fatal([%s: %%defines does not make sense in Java], [b4_skeleton])])
-m4_ifval(m4_defn([b4_symbol_destructors]),
- [b4_fatal([%s: %%destructor does not make sense in Java], [b4_skeleton])],
- [])
+b4_defines_if([b4_fatal([%s: %%defines does not make sense in Java],
+ [b4_skeleton])])
+
+m4_define([b4_symbol_no_destructor_assert],
+[b4_symbol_if([$1], [has_destructor],
+ [b4_fatal([%s: %s: %%destructor does not make sense in Java],
+ [b4_skeleton],
+ [b4_symbol_action_location([$1], [destructor])])])])
+b4_symbol_foreach([b4_symbol_no_destructor_assert])
m4_divert_push(0)dnl
@output(b4_parser_file_name@)@
b4_copyright([Skeleton implementation for Bison LALR(1) parsers in Java],
m4_divert_push(0)dnl
@output(b4_parser_file_name@)@
b4_copyright([Skeleton implementation for Bison LALR(1) parsers in Java],
b4_percent_define_ifdef([package], [package b4_percent_define_get([package]);
])[/* First part of user declarations. */
b4_percent_define_ifdef([package], [package b4_percent_define_get([package]);
])[/* First part of user declarations. */
b4_percent_code_get([[imports]])
[/**
* A Bison parser, automatically generated from <tt>]m4_bpatsubst(b4_file_name, [^"\(.*\)"$], [\1])[</tt>.
*
* @@author LALR (1) parser skeleton written by Paolo Bonzini.
*/
b4_percent_code_get([[imports]])
[/**
* A Bison parser, automatically generated from <tt>]m4_bpatsubst(b4_file_name, [^"\(.*\)"$], [\1])[</tt>.
*
* @@author LALR (1) parser skeleton written by Paolo Bonzini.
*/
- public boolean errorVerbose = ]b4_flag_value([error_verbose]);
+ private boolean yyErrorVerbose = true;
+
+ /**
+ * Return whether verbose error messages are enabled.
+ */
+ public final boolean getErrorVerbose() { return yyErrorVerbose; }
+
+ /**
+ * Set the verbosity of error messages.
+ * @@param verbose True to request verbose error messages.
+ */
+ public final void setErrorVerbose(boolean verbose)
+ { yyErrorVerbose = verbose; }
+]])
]b4_locations_if([[/**
* Method to retrieve the beginning position of the last scanned token.
* @@return the position at which the last scanned token starts. */
]b4_locations_if([[/**
* Method to retrieve the beginning position of the last scanned token.
* @@return the position at which the last scanned token starts. */
*
* ]b4_locations_if([[@@param loc The location of the element to which the
* error message is related]])[
*
* ]b4_locations_if([[@@param loc The location of the element to which the
* error message is related]])[
- * @@param s The string for the error message. */
- void yyerror (]b4_locations_if([b4_location_type[ loc, ]])[String s);]
+ * @@param msg The string for the error message. */
+ void yyerror (]b4_locations_if([b4_location_type[ loc, ]])[String msg);]
* Instantiates the Bison-generated parser.
* @@param yylexer The scanner that will supply tokens to the parser.
*/
* Instantiates the Bison-generated parser.
* @@param yylexer The scanner that will supply tokens to the parser.
*/
- b4_lexer_if([[protected]], [[public]]) b4_parser_class_name[ (]b4_parse_param_decl([[Lexer yylexer]])[) {
+ b4_lexer_if([[protected]], [[public]]) b4_parser_class_name[ (]b4_parse_param_decl([[Lexer yylexer]])[) ]b4_maybe_throws([b4_init_throws])[
+ {
+ ]b4_percent_code_get([[init]])[
- private final int yylex () ]b4_maybe_throws([b4_lex_throws]) [{
- return yylexer.yylex ();
+ /**
+ * Print an error message via the lexer.
+ *]b4_locations_if([[ Use a <code>null</code> location.]])[
+ * @@param msg The error message.
+ */
+ public final void yyerror (String msg)
+ {
+ yylexer.yyerror (]b4_locations_if([[(]b4_location_type[)null, ]])[msg);
- protected final void yyerror (]b4_locations_if([b4_location_type[ loc, ]])[String s) {
- yylexer.yyerror (]b4_locations_if([loc, ])[s);
+]b4_locations_if([[
+ /**
+ * Print an error message via the lexer.
+ * @@param loc The location associated with the message.
+ * @@param msg The error message.
+ */
+ public final void yyerror (]b4_location_type[ loc, String msg)
+ {
+ yylexer.yyerror (loc, msg);
- ]b4_locations_if([
- protected final void yyerror (String s) {
- yylexer.yyerror ((]b4_location_type[)null, s);
- }
- protected final void yyerror (]b4_position_type[ loc, String s) {
- yylexer.yyerror (new ]b4_location_type[ (loc), s);
- }])
+ /**
+ * Print an error message via the lexer.
+ * @@param pos The position associated with the message.
+ * @@param msg The error message.
+ */
+ public final void yyerror (]b4_position_type[ pos, String msg)
+ {
+ yylexer.yyerror (new ]b4_location_type[ (pos), msg);
+ }]])
- int[] newStateStack = new int[size * 2];
- System.arraycopy (stateStack, 0, newStateStack, 0, height);
- stateStack = newStateStack;
- ]b4_locations_if([[
- ]b4_location_type[[] newLocStack = new ]b4_location_type[[size * 2];
- System.arraycopy (locStack, 0, newLocStack, 0, height);
- locStack = newLocStack;]])
-
- b4_yystype[[] newValueStack = new ]b4_yystype[[size * 2];
- System.arraycopy (valueStack, 0, newValueStack, 0, height);
- valueStack = newValueStack;
-
- size *= 2;
- }
+ int[] newStateStack = new int[size * 2];
+ System.arraycopy (stateStack, 0, newStateStack, 0, height);
+ stateStack = newStateStack;
+ ]b4_locations_if([[
+ ]b4_location_type[[] newLocStack = new ]b4_location_type[[size * 2];
+ System.arraycopy (locStack, 0, newLocStack, 0, height);
+ locStack = newLocStack;]])
+
+ b4_yystype[[] newValueStack = new ]b4_yystype[[size * 2];
+ System.arraycopy (valueStack, 0, newValueStack, 0, height);
+ valueStack = newValueStack;
+
+ size *= 2;
+ }
- java.util.Arrays.fill (valueStack, height - num + 1, height, null);
+ java.util.Arrays.fill (valueStack, height - num + 1, height, null);
]b4_locations_if([[java.util.Arrays.fill (locStack, height - num + 1, height, null);]])[
}
height -= num;
]b4_locations_if([[java.util.Arrays.fill (locStack, height - num + 1, height, null);]])[
}
height -= num;
}
yy_symbol_print ("-> $$ =", yyr1_[yyn], yyval]b4_locations_if([, yyloc])[);
}
yy_symbol_print ("-> $$ =", yyr1_[yyn], yyval]b4_locations_if([, yyloc])[);
yyn = yyr1_[yyn];
int yystate = yypgoto_[yyn - yyntokens_] + yystack.stateAt (0);
if (0 <= yystate && yystate <= yylast_
yyn = yyr1_[yyn];
int yystate = yypgoto_[yyn - yyntokens_] + yystack.stateAt (0);
if (0 <= yystate && yystate <= yylast_
/* Return YYSTR after stripping away unnecessary quotes and
backslashes, so that it's suitable for yyerror. The heuristic is
that double-quoting is unnecessary unless the string contains an
/* Return YYSTR after stripping away unnecessary quotes and
backslashes, so that it's suitable for yyerror. The heuristic is
that double-quoting is unnecessary unless the string contains an
/*--------------------------------.
| Print this symbol on YYOUTPUT. |
`--------------------------------*/
private void yy_symbol_print (String s, int yytype,
/*--------------------------------.
| Print this symbol on YYOUTPUT. |
`--------------------------------*/
private void yy_symbol_print (String s, int yytype,
- ]b4_yystype[ yyvaluep]dnl
- b4_locations_if([, Object yylocationp])[)
+ ]b4_yystype[ yyvaluep]dnl
+ b4_locations_if([, Object yylocationp])[)
- + yytname_[yytype] + " ("]b4_locations_if([
- + yylocationp + ": "])[
- + (yyvaluep == null ? "(null)" : yyvaluep.toString ()) + ")");
+ + yytname_[yytype] + " ("]b4_locations_if([
+ + yylocationp + ": "])[
+ + (yyvaluep == null ? "(null)" : yyvaluep.toString ()) + ")");
- yylloc = new ]b4_location_type[(yylexer.getStartPos (),
- yylexer.getEndPos ());]])
+ yylloc = new ]b4_location_type[(yylexer.getStartPos (),
+ yylexer.getEndPos ());]])
- yytoken = yytranslate_ (yychar);
- yy_symbol_print ("Next token is", yytoken,
- yylval]b4_locations_if([, yylloc])[);
+ yytoken = yytranslate_ (yychar);
+ yy_symbol_print ("Next token is", yytoken,
+ yylval]b4_locations_if([, yylloc])[);
- yy_symbol_print ("Shifting", yytoken,
- yylval]b4_locations_if([, yylloc])[);
+ yy_symbol_print ("Shifting", yytoken,
+ yylval]b4_locations_if([, yylloc])[);
- /* If just tried and failed to reuse lookahead token after an
- error, discard it. */
-
- if (yychar <= EOF)
- {
- /* Return failure if at end of input. */
- if (yychar == EOF)
- return false;
- }
- else
- yychar = yyempty_;
+ /* If just tried and failed to reuse lookahead token after an
+ error, discard it. */
+
+ if (yychar <= Lexer.EOF)
+ {
+ /* Return failure if at end of input. */
+ if (yychar == Lexer.EOF)
+ return false;
+ }
+ else
+ yychar = yyempty_;
| yyerrlab1 -- common code for both syntax error and YYERROR. |
`-------------------------------------------------------------*/
case YYERRLAB1:
| yyerrlab1 -- common code for both syntax error and YYERROR. |
`-------------------------------------------------------------*/
case YYERRLAB1:
- 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 (yystack.height == 1)
- return false;
-
- ]b4_locations_if([yyerrloc = yystack.locationAt (0);])[
- yystack.pop ();
- yystate = yystack.stateAt (0);
- if (yydebug > 0)
- yystack.print (yyDebugStream);
+ 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 (yystack.height == 1)
+ return false;
+
+ ]b4_locations_if([yyerrloc = yystack.locationAt (0);])[
+ yystack.pop ();
+ yystate = yystack.stateAt (0);
+ if (yydebug > 0)
+ yystack.print (yyDebugStream);
- ]b4_locations_if([
- /* Muck with the stack to setup for yylloc. */
- yystack.push (0, null, yylloc);
- yystack.push (0, null, yyerrloc);
+ ]b4_locations_if([
+ /* Muck with the stack to setup for yylloc. */
+ yystack.push (0, null, yylloc);
+ yystack.push (0, null, yyerrloc);
/* Shift the error token. */
yy_symbol_print ("Shifting", yystos_[yyn],
/* Shift the error token. */
yy_symbol_print ("Shifting", yystos_[yyn],
// Generate an error message.
private String yysyntax_error (int yystate, int tok)
// Generate an error message.
private String yysyntax_error (int yystate, int tok)
- StringBuffer res;
-
- /* Start YYX at -YYN if negative to avoid negative indexes in
- YYCHECK. */
- int yyxbegin = yyn < 0 ? -yyn : 0;
-
- /* Stay within bounds of both yycheck and yytname. */
- int yychecklim = yylast_ - yyn + 1;
- int yyxend = yychecklim < yyntokens_ ? yychecklim : yyntokens_;
- int count = 0;
- for (int x = yyxbegin; x < yyxend; ++x)
- if (yycheck_[x + yyn] == x && x != yyterror_)
- ++count;
-
- // FIXME: This method of building the message is not compatible
- // with internationalization.
- res = new StringBuffer ("syntax error, unexpected ");
- res.append (yytnamerr_ (yytname_[tok]));
- if (count < 5)
- {
- count = 0;
- for (int x = yyxbegin; x < yyxend; ++x)
- if (yycheck_[x + yyn] == x && x != yyterror_)
- {
- res.append (count++ == 0 ? ", expecting " : " or ");
- res.append (yytnamerr_ (yytname_[x]));
- }
- }
- return res.toString ();
+ StringBuffer res;
+
+ /* Start YYX at -YYN if negative to avoid negative indexes in
+ YYCHECK. */
+ int yyxbegin = yyn < 0 ? -yyn : 0;
+
+ /* Stay within bounds of both yycheck and yytname. */
+ int yychecklim = yylast_ - yyn + 1;
+ int yyxend = yychecklim < yyntokens_ ? yychecklim : yyntokens_;
+ int count = 0;
+ for (int x = yyxbegin; x < yyxend; ++x)
+ if (yycheck_[x + yyn] == x && x != yyterror_)
+ ++count;
+
+ // FIXME: This method of building the message is not compatible
+ // with internationalization.
+ res = new StringBuffer ("syntax error, unexpected ");
+ res.append (yytnamerr_ (yytname_[tok]));
+ if (count < 5)
+ {
+ count = 0;
+ for (int x = yyxbegin; x < yyxend; ++x)
+ if (yycheck_[x + yyn] == x && x != yyterror_)
+ {
+ res.append (count++ == 0 ? ", expecting " : " or ");
+ res.append (yytnamerr_ (yytname_[x]));
+ }
+ }
+ return res.toString ();
- private static final ]b4_int_type_for([b4_pact])[ yypact_[] =
- {
- ]b4_pact[
- };
-
- /* YYDEFACT[S] -- default rule to reduce with in state S when YYTABLE
- doesn't specify something else to do. Zero means the default is an
- error. */
- private static final ]b4_int_type_for([b4_defact])[ yydefact_[] =
- {
- ]b4_defact[
- };
-
- /* YYPGOTO[NTERM-NUM]. */
- private static final ]b4_int_type_for([b4_pgoto])[ yypgoto_[] =
- {
- ]b4_pgoto[
- };
-
- /* YYDEFGOTO[NTERM-NUM]. */
- private static final ]b4_int_type_for([b4_defgoto])[
- yydefgoto_[] =
- {
- ]b4_defgoto[
- };
-
- /* YYTABLE[YYPACT[STATE-NUM]]. What to do in state STATE-NUM. If
- positive, shift that token. If negative, reduce the rule which
- number is the opposite. If zero, do what YYDEFACT says. */
- private static final ]b4_int_type_for([b4_table])[
- yytable_[] =
- {
- ]b4_table[
- };
-
- /* YYCHECK. */
- private static final ]b4_int_type_for([b4_check])[
- yycheck_[] =
- {
- ]b4_check[
- };
-
- /* STOS_[STATE-NUM] -- The (internal number of the) accessing
- symbol of state STATE-NUM. */
- private static final ]b4_int_type_for([b4_stos])[
- yystos_[] =
- {
- ]b4_stos[
- };
-
- /* TOKEN_NUMBER_[YYLEX-NUM] -- Internal symbol number corresponding
- to YYLEX-NUM. */
- private static final ]b4_int_type_for([b4_toknum])[
- yytoken_number_[] =
- {
- ]b4_toknum[
- };
-
- /* YYR1[YYN] -- Symbol number of symbol that rule YYN derives. */
- private static final ]b4_int_type_for([b4_r1])[
- yyr1_[] =
- {
- ]b4_r1[
- };
- /* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN. */
- private static final ]b4_int_type_for([b4_r2])[
- yyr2_[] =
- {
- ]b4_r2[
- };
+ ]b4_parser_tables_define[
+ ]b4_integral_parser_table_define([token_number], [b4_toknum],
+ [TOKEN_NUMBER_[YYLEX-NUM] -- Internal symbol number corresponding
+ to YYLEX-NUM.])[
/* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
First, the terminals, then, starting at \a yyntokens_, nonterminals. */
/* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
First, the terminals, then, starting at \a yyntokens_, nonterminals. */
- private static final String yytname_[] =
- {
- ]b4_tname[
- };
-
- /* YYRHS -- A `-1'-separated list of the rules' RHS. */
- private static final ]b4_int_type_for([b4_rhs])[ yyrhs_[] =
- {
- ]b4_rhs[
- };
+ ]b4_typed_parser_table_define([String], [tname], [b4_tname])[
- /* YYPRHS[YYN] -- Index of the first RHS symbol of rule number YYN in
- YYRHS. */
- private static final ]b4_int_type_for([b4_prhs])[ yyprhs_[] =
- {
- ]b4_prhs[
- };
-
- /* YYRLINE[YYN] -- Source line where rule number YYN was defined. */
- private static final ]b4_int_type_for([b4_rline])[ yyrline_[] =
- {
- ]b4_rline[
- };
+ ]b4_integral_parser_table_define([rline], [b4_rline],
+ [YYRLINE[YYN] -- Source line where rule number YYN was defined.])[
// Report on the debug stream that the rule yyrule is going to be reduced.
private void yy_reduce_print (int yyrule, YYStack yystack)
// Report on the debug stream that the rule yyrule is going to be reduced.
private void yy_reduce_print (int yyrule, YYStack yystack)
int yynrhs = yyr2_[yyrule];
/* Print the symbols being reduced, and their result. */
yycdebug ("Reducing stack by rule " + (yyrule - 1)
int yynrhs = yyr2_[yyrule];
/* Print the symbols being reduced, and their result. */
yycdebug ("Reducing stack by rule " + (yyrule - 1)
/* The symbols being reduced. */
for (int yyi = 0; yyi < yynrhs; yyi++)
yy_symbol_print (" $" + (yyi + 1) + " =",
/* The symbols being reduced. */
for (int yyi = 0; yyi < yynrhs; yyi++)
yy_symbol_print (" $" + (yyi + 1) + " =",
- yyrhs_[yyprhs_[yyrule] + yyi],
- ]b4_rhs_value(yynrhs, yyi + 1)b4_locations_if([,
- b4_rhs_location(yynrhs, yyi + 1)])[);
+ yystos_[yystack.stateAt(yyi + 1 - yynrhs)],
+ ]b4_rhs_value(yynrhs, yyi + 1)b4_locations_if([,
+ b4_rhs_location(yynrhs, yyi + 1)])[);
projects / bison.git / blobdiff