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* src/symtab.h (SALIAS, SUNDEF): Rename as...

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(USER_NUMBER_ALIAS, USER_NUMBER_UNDEFINED): these.
Adjust dependencies.
* src/output.c (token_definitions_output): Be sure not to output a
`#define 'a'' when fed with `%token 'a' "a"'.
* tests/regression.at (Token definitions): New.
This commit is contained in:
Akim Demaille
2002-05-04 08:48:04 +00:00
parent 8bb936e4f7
commit b87f8b2159
9 changed files with 89 additions and 68 deletions
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25
src/symtab.h
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@@ -41,14 +41,12 @@ typedef enum
nterm_sym /* non-terminal */
} symbol_class;
/* Internal token numbers. */
typedef short token_number_t;
#define SUNDEF -1 /* For undefined user number. */
#define SALIAS -9991 /* for symbol generated with an alias */
#define NUMBER_UNDEFINED ((token_number_t) -1)
typedef struct symbol_s symbol_t;
struct symbol_s
{
/* The key, name of the symbol. */
@@ -61,14 +59,25 @@ struct symbol_s
associativity assoc;
int user_token_number;
/* Points to the other in the identifier-symbol pair for an
alias. Special value SALIAS in the identifier half of the
/* Points to the other in the identifier-symbol pair for an alias.
Special value USER_NUMBER_ALIAS in the identifier half of the
identifier-symbol pair for an alias. */
struct symbol_s *alias;
symbol_t *alias;
symbol_class class;
};
typedef struct symbol_s symbol_t;
/* Undefined user number. */
#define USER_NUMBER_UNDEFINED -1
/* `symbol->user_token_number == USER_NUMBER_ALIAS' means this symbol
*has* (not is) a string literal alias. For instance, `%token foo
"foo"' has `"foo"' numbered regularly, and `foo' numbered as
USER_NUMBER_ALIAS. */
#define USER_NUMBER_ALIAS -9991
/* Undefined internal token number. */
#define NUMBER_UNDEFINED ((token_number_t) -1)
/* A function to apply to each symbol. */
typedef bool (*symbol_processor) PARAMS ((symbol_t *));