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src/sparse-0.4.4/token_struct.h  view on Meta::CPAN

 * the input stream.
 *
 * Semantic meaning is handled elsewhere.
 */

enum constantfile {
  CONSTANT_FILE_MAYBE,    // To be determined, not inside any #ifs in this file
  CONSTANT_FILE_IFNDEF,   // To be determined, currently inside #ifndef
  CONSTANT_FILE_NOPE,     // No
  CONSTANT_FILE_YES       // Yes
};

#ifndef DO_CTX
extern const char *includepath[];
#endif

struct stream {
	int fd, id;
	const char *name;
	const char *path;    // input-file path - see set_stream_include_path()
	const char **next_path;

	/* Use these to check for "already parsed" */
	enum constantfile constant;
	int dirty, next_stream, once, issys;
	struct ident *protect;
	struct token *ifndef;
	struct token *top_if;
	struct expansion *e;
};

#ifndef DO_CTX
extern int input_stream_nr;
extern struct stream *input_streams;
extern unsigned int tabstop;
#endif
extern int *hash_stream(SCTX_ const char *name);

struct ident {
	struct ident *next;	/* Hash chain of identifiers */
	struct symbol *symbols;	/* Pointer to semantic meaning list */
	unsigned char len;	/* Length of identifier name */
	unsigned char tainted:1,
	              reserved:1,
		      keyword:1;
	char name[];		/* Actual identifier */
};

struct ident_ctx {
	struct ident b;
	char name[128];		/* Actual identifier */
};

enum token_type {
	TOKEN_EOF,
	TOKEN_ERROR,
	TOKEN_IDENT,
	TOKEN_ZERO_IDENT,
	TOKEN_NUMBER,
	TOKEN_CHAR,
	TOKEN_CHAR_EMBEDDED_0,
	TOKEN_CHAR_EMBEDDED_1,
	TOKEN_CHAR_EMBEDDED_2,
	TOKEN_CHAR_EMBEDDED_3,
	TOKEN_WIDE_CHAR,
	TOKEN_WIDE_CHAR_EMBEDDED_0,
	TOKEN_WIDE_CHAR_EMBEDDED_1,
	TOKEN_WIDE_CHAR_EMBEDDED_2,
	TOKEN_WIDE_CHAR_EMBEDDED_3,
	TOKEN_STRING,
	TOKEN_WIDE_STRING,
	TOKEN_SPECIAL,
	TOKEN_STREAMBEGIN,
	TOKEN_STREAMEND,
	TOKEN_MACRO_ARGUMENT,
	TOKEN_STR_ARGUMENT,
	TOKEN_QUOTED_ARGUMENT,
	TOKEN_CONCAT,
	TOKEN_GNU_KLUDGE,
	TOKEN_UNTAINT,
	TOKEN_ARG_COUNT,
	TOKEN_IF,
	TOKEN_SKIP_GROUPS,
	TOKEN_ELSE,
	TOKEN_CONS
};

/* Combination tokens */
#define COMBINATION_STRINGS {	\
	"+=", "++",		\
	"-=", "--", "->",	\
	"*=",			\
	"/=",			\
	"%=",			\
	"<=", ">=",		\
	"==", "!=",		\
	"&&", "&=",		\
	"||", "|=",		\
	"^=", "##",		\
	"<<", ">>", "..",	\
	"<<=", ">>=", "...",	\
	"",			\
	"<", ">", "<=", ">="	\
}

extern unsigned char combinations[][4];

enum special_token {
	SPECIAL_BASE = 256,
	SPECIAL_ADD_ASSIGN = SPECIAL_BASE,
	SPECIAL_INCREMENT,
	SPECIAL_SUB_ASSIGN,
	SPECIAL_DECREMENT,
	SPECIAL_DEREFERENCE,
	SPECIAL_MUL_ASSIGN,
	SPECIAL_DIV_ASSIGN,
	SPECIAL_MOD_ASSIGN,
	SPECIAL_LTE,
	SPECIAL_GTE,
	SPECIAL_EQUAL,
	SPECIAL_NOTEQUAL,
	SPECIAL_LOGICAL_AND,
	SPECIAL_AND_ASSIGN,
	SPECIAL_LOGICAL_OR,
	SPECIAL_OR_ASSIGN,
	SPECIAL_XOR_ASSIGN,
	SPECIAL_HASHHASH,
	SPECIAL_LEFTSHIFT,
	SPECIAL_RIGHTSHIFT,