b4_percent_define_ifdef([package], [package b4_percent_define_get([package]);
])[/* First part of user declarations. */
-]b4_pre_prologue
+]b4_user_pre_prologue
+b4_user_post_prologue
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_public_if([public ])dnl
+]b4_percent_define_get3([annotations], [], [ ])dnl
+b4_public_if([public ])dnl
b4_abstract_if([abstract ])dnl
b4_final_if([final ])dnl
b4_strictfp_if([strictfp ])dnl
b4_percent_define_get3([implements], [ implements ])[
{
]b4_identification[
-
+]b4_error_verbose_if([[
/** True if verbose error messages are enabled. */
- 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([[
/**
]])
-[ /** Token returned by the scanner to signal the end of its input. */
- public static final int EOF = 0;]
-
-b4_token_enums(b4_tokens)
-
b4_locations_if([[
private ]b4_location_type[ yylloc (YYStack rhs, int n)
{
* parser <tt>]b4_parser_class_name[</tt>.
*/
public interface Lexer {
+ /** Token returned by the scanner to signal the end of its input. */
+ public static final int EOF = 0;
+
+]b4_token_enums(b4_tokens)[
+
]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]])[
- * @@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);]
}
b4_lexer_if([[private class YYLexer implements Lexer {
/**
* Instantiates the Bison-generated parser.
*/
- public ]b4_parser_class_name (b4_parse_param_decl([b4_lex_param_decl])[) {
+ public ]b4_parser_class_name (b4_parse_param_decl([b4_lex_param_decl])[) ]b4_maybe_throws([b4_init_throws])[
+ {
+ ]b4_percent_code_get([[init]])[
this.yylexer = new YYLexer(]b4_lex_param_call[);
]b4_parse_param_cons[
}
* 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]])[
this.yylexer = yylexer;
]b4_parse_param_cons[
}
*/
public final void setDebugLevel(int level) { yydebug = level; }
- 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);
+ }]])
[protected final void yycdebug (String s) {
if (yydebug > 0)
return YYNEWSTATE;
}
+]b4_error_verbose_if([[
/* 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;
}
+]])[
/*--------------------------------.
| Print this symbol on YYOUTPUT. |
/* Read a lookahead token. */
if (yychar == yyempty_)
{
- yycdebug ("Reading a token: ");
- yychar = yylex ();]
+ yycdebug ("Reading a token: ");
+ yychar = yylexer.yylex ();]
b4_locations_if([[
- yylloc = new ]b4_location_type[(yylexer.getStartPos (),
- yylexer.getEndPos ());]])
+ yylloc = new ]b4_location_type[(yylexer.getStartPos (),
+ yylexer.getEndPos ());]])
yylval = yylexer.getLVal ();[
}
/* Convert token to internal form. */
- if (yychar <= EOF)
+ if (yychar <= Lexer.EOF)
{
- yychar = yytoken = EOF;
- yycdebug ("Now at end of input.\n");
+ yychar = yytoken = Lexer.EOF;
+ yycdebug ("Now at end of input.\n");
}
else
{
]b4_locations_if([yyerrloc = yylloc;])[
if (yyerrstatus_ == 3)
{
- /* If just tried and failed to reuse lookahead token after an
- error, discard it. */
+ /* 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
+ if (yychar <= Lexer.EOF)
+ {
+ /* Return failure if at end of input. */
+ if (yychar == Lexer.EOF)
+ return false;
+ }
+ else
yychar = yyempty_;
}
// Generate an error message.
private String yysyntax_error (int yystate, int tok)
- {
- if (errorVerbose)
+ {]b4_error_verbose_if([[
+ if (yyErrorVerbose)
{
int yyn = yypact_[yystate];
if (yypact_ninf_ < yyn && yyn <= yylast_)
res.append (yytnamerr_ (yytname_[x]));
}
}
- return res.toString ();
+ return res.toString ();
}
}
-
+]])[
return "syntax error";
}
-
/* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
STATE-NUM. */
private static final ]b4_int_type_for([b4_pact])[ yypact_ninf_ = ]b4_pact_ninf[;
- private static final ]b4_int_type_for([b4_pact])[ yypact_[] =
- {
- ]b4_pact[
- };
+ ]b4_integral_parser_table([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[
- };
+ ]b4_integral_parser_table([yydefact_], [b4_defact])[
/* YYPGOTO[NTERM-NUM]. */
- private static final ]b4_int_type_for([b4_pgoto])[ yypgoto_[] =
- {
- ]b4_pgoto[
- };
+ ]b4_integral_parser_table([yypgoto_], [b4_pgoto])[
/* YYDEFGOTO[NTERM-NUM]. */
- private static final ]b4_int_type_for([b4_defgoto])[
- yydefgoto_[] =
- {
- ]b4_defgoto[
- };
+ ]b4_integral_parser_table([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_ninf_ = ]b4_table_ninf[;
- private static final ]b4_int_type_for([b4_table])[
- yytable_[] =
- {
- ]b4_table[
- };
+ ]b4_integral_parser_table([yytable_], [b4_table])[
/* YYCHECK. */
- private static final ]b4_int_type_for([b4_check])[
- yycheck_[] =
- {
- ]b4_check[
- };
+ ]b4_integral_parser_table([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[
- };
+ ]b4_integral_parser_table([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[
- };
+ ]b4_integral_parser_table([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[
- };
+ ]b4_integral_parser_table([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_integral_parser_table([yyr2_], [b4_r2])[
/* 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[
- };
+ ]b4_typed_parser_table([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_integral_parser_table([yyrhs_], [b4_rhs])[
/* 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[
- };
+ ]b4_integral_parser_table([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([yyrline_], [b4_rline])[
// Report on the debug stream that the rule yyrule is going to be reduced.
private void yy_reduce_print (int yyrule, YYStack yystack)
}
/* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX. */
- private static final ]b4_int_type_for([b4_translate])[ yytranslate_table_[] =
- {
- ]b4_translate[
- };
+ ]b4_integral_parser_table([yytranslate_table_], [b4_translate])[
private static final ]b4_int_type_for([b4_translate])[ yytranslate_ (int t)
{
projects / bison.git / blobdiff