#include <stdbool.h>
#include <stdio.h>
+#include "libpspp/assertion.h"
#include "libpspp/str.h"
#include "data/identifier.h"
char *token_to_string (const struct token *);
void token_print (const struct token *, FILE *);
+
+static inline bool token_is_number (const struct token *);
+static inline double token_number (const struct token *);
+bool token_is_integer (const struct token *);
+long token_integer (const struct token *);
+static inline bool token_is_string (const struct token *);
+
+static inline bool
+token_is_number (const struct token *t)
+{
+ return t->type == T_POS_NUM || t->type == T_NEG_NUM;
+}
+
+static inline double
+token_number (const struct token *t)
+{
+ assert (token_is_number (t));
+ return t->number;
+}
+
+static inline bool
+token_is_string (const struct token *t)
+{
+ return t->type == T_STRING;
+}
\f
struct tokens
{