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(output): Define YYDEBUG to 0 if it is not defined and if we are not

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debugging.  POSIX requires this.

(output_gram, output_rule_data): Do not assume that
the user defines YYDEBUG to a properly parenthesized expression.
This commit is contained in:
Paul Eggert
2001-12-17 18:45:59 +00:00
parent f30e1ab65c
commit ac28f67c0b
1 changed files with 6 additions and 7 deletions
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13
src/output.c
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@@ -316,7 +316,7 @@ output_gram (void)
yyprhs and yyrhs are needed only for yydebug. */ yyprhs and yyrhs are needed only for yydebug. */
/* With the no_parser option, all tables are generated */ /* With the no_parser option, all tables are generated */
if (!semantic_parser && !no_parser_flag) if (!semantic_parser && !no_parser_flag)
obstack_sgrow (&table_obstack, "\n#if YYDEBUG != 0\n"); obstack_sgrow (&table_obstack, "\n#if YYDEBUG\n");
{ {
int i; int i;
@@ -372,7 +372,7 @@ output_rule_data (void)
short *short_tab = NULL; short *short_tab = NULL;
obstack_sgrow (&table_obstack, "\n\ obstack_sgrow (&table_obstack, "\n\
#if YYDEBUG != 0\n"); #if YYDEBUG\n");
{ {
short *values = XCALLOC (short, nrules + 1); short *values = XCALLOC (short, nrules + 1);
@@ -400,7 +400,7 @@ output_rule_data (void)
/* Output the table of symbol names. */ /* Output the table of symbol names. */
if (!token_table_flag && !no_parser_flag) if (!token_table_flag && !no_parser_flag)
obstack_sgrow (&table_obstack, obstack_sgrow (&table_obstack,
"\n#if YYDEBUG != 0 || defined YYERROR_VERBOSE\n\n"); "\n#if (YYDEBUG) || defined YYERROR_VERBOSE\n\n");
obstack_sgrow (&table_obstack, "\ obstack_sgrow (&table_obstack, "\
/* YYTNAME[TOKEN_NUM] -- String name of the token TOKEN_NUM. */\n"); /* YYTNAME[TOKEN_NUM] -- String name of the token TOKEN_NUM. */\n");
obstack_sgrow (&table_obstack, obstack_sgrow (&table_obstack,
@@ -1268,12 +1268,11 @@ output (void)
obstack_grow (&table_obstack, obstack_finish (&attrs_obstack), size); obstack_grow (&table_obstack, obstack_finish (&attrs_obstack), size);
} }
reader_output_yylsp (&table_obstack); reader_output_yylsp (&table_obstack);
if (debug_flag) obstack_fgrow1 (&table_obstack, "\
obstack_sgrow (&table_obstack, "\
#ifndef YYDEBUG\n\ #ifndef YYDEBUG\n\
# define YYDEBUG 1\n\ # define YYDEBUG %d\n\
#endif\n\ #endif\n\
\n"); \n", debug_flag);
if (semantic_parser) if (semantic_parser)
obstack_fgrow1 (&table_obstack, "#include %s\n", obstack_fgrow1 (&table_obstack, "#include %s\n",