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#pragma once
typedef enum Sym {
S_undef,
S_number,
S_ident,
S_token,
S_newline,
S_label,
S_comment,
S_eof
} Sym;
typedef struct Symbol {
Sym sym;
union {
char s[MAX_IDENT_LEN];
int n;
} data;
int tag;
} Symbol;
typedef struct Scanner {
int peek;
int row;
int col;
char *src;
char *pos;
int debug;
} Scanner;
void scanner_init( Scanner *s, char *src );
void scanner_reset( Scanner *s );
void scanner_done( Scanner *s );
Symbol scanner_scan( Scanner *s );
void scanner_debug( Scanner *s, int enable );
void scanner_skip_line( Scanner *s );
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