lex.h


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#define MAX_IDENT_LENGTH 128

enum TOKEN_TYPE {
	/* Keywords */
	TOK_MODULE,
	TOK_INPUT,
	TOK_EXPR,
	TOK_COLON,
	TOK_EOL,
	TOK_OR,
	TOK_AND,
	TOK_XOR,
	TOK_NOT,

	/* Etc */
	TOK_IDENT
};

struct location {
	size_t line;
	size_t column;
	size_t leading_whitespace_len;
};

struct token {
	enum TOKEN_TYPE type;
	struct location loc;
	char value[MAX_IDENT_LENGTH];
	size_t span;
	struct token *next;
};

struct token* lex_file(FILE*);
const char *get_token_description(enum TOKEN_TYPE);