#define TOKEN_INVALID	-1
#define TOKEN_EOF	0 // EOF
#define TOKEN_NOT       1 // "not"
#define TOKEN_AND       2 // "and"
#define TOKEN_OR        3 // "or"
#define TOKEN_GT        4 // '>'
#define TOKEN_GTE       5 // '>='
#define TOKEN_LT        6 // '<'
#define TOKEN_LTE       7 // '<='
#define TOKEN_EQ        8 // '=='
#define TOKEN_NE        9 // '!='
#define TOKEN_CONTAINS  10 // "contains"
#define TOKEN_EQUALS	11 // "equals"
#define TOKEN_LPAREN    12 // '('
#define TOKEN_RPAREN    13 // ')'
#define TOKEN_NUM       14 // (0..9)+
#define TOKEN_NUMIDENTIFIER 15 // year, trackid, bpm, etc.
#define TOKEN_STRING    16 // (?)+
#define TOKEN_STRINGIDENTIFIER 17 // album, artist, title, genre ...

#define INTVALUE_YEAR		1
#define INTVALUE_RATING		2
#define INTVALUE_PLAYCOUNT	3
#define INTVALUE_TITLE		4
#define INTVALUE_ARTIST		5
#define INTVALUE_ALBUM		6
#define INTVALUE_GENRE		7
#define INTVALUE_FILENAME	8

static char *spelling[] = { "not", "and", "or",">",">=","<", "<=","==","!=",
	        "contains","(",")" };

struct token {
      unsigned char kind;
      char spelling[256];
      int intvalue;
};

char *getstring(struct token *token);
int getvalue(struct token *token);