#ifndef _LEX_H_
#define _LEX_H_
#define DEFMAX 20000 //at least 4 times MAXLINE
#define MAXLINE 4096
#define MLEN 4096
#define NSIZE 256
#define MAX_INSTRS 512
#define EXPANDMAX 25000
#define NARGS 25
#define MARKS '@'
#define SKIPWHITE while (isspace((unsigned char)*p) && (*p != '\n')) p++
#define DEFAULT_NONE 0xff
#define DEFAULT_THIS_OBJECT 0xfe
#define PRAGMA_STRICT_TYPES 1
#define PRAGMA_WARNINGS 2
#define PRAGMA_SAVE_TYPES 4
#define PRAGMA_SAVE_BINARY 8
#define PRAGMA_OPTIMIZE 16
#define PRAGMA_ERROR_CONTEXT 32
#define PRAGMA_OPTIMIZE_HIGH 64
/* for find_or_add_ident */
#define FOA_GLOBAL_SCOPE 0x1
#define FOA_NEEDS_MALLOC 0x2
typedef struct {
SIGNED short local_num, global_num, efun_num;
SIGNED short function_num, simul_num, class_num;
} defined_name_t;
typedef struct ifstate_s {
struct ifstate_s *next;
int state;
} ifstate_t;
typedef struct defn_s {
struct defn_s *next;
char *name;
char *exps;
int flags;
int nargs;
} defn_t;
/* must be a power of 4 */
#define DEFHASH 128
#define defhash(s) (whashstr((s)) & (DEFHASH - 1))
#define DEF_IS_UNDEFINED 1
#define DEF_IS_PREDEF 2
/* used only in edit_source */
#define DEF_IS_NOT_LOCAL 4
/* to speed up cleaning the hash table, and identify the union */
#define IHE_RESWORD 0x8000 /* reserved word */
#define IHE_EFUN 0x4000 /* efun name */
#define IHE_SIMUL 0x2000 /* active simul efun name */
#define IHE_ORPHAN 0x1000 /* old and unused simul efun name */
#define IHE_PERMANENT (IHE_RESWORD | IHE_EFUN | IHE_SIMUL | IHE_ORPHAN)
#define TOKEN_MASK 0x0fff
#define INDENT_HASH_SIZE 1024 /* must be a power of 2 */
typedef struct ident_hash_elem_s {
const char *name;
short token; /* only flags */
unsigned short sem_value; /* for these, a count of the ambiguity */
struct ident_hash_elem_s *next;
/* the fields above must correspond to struct keyword_t */
struct ident_hash_elem_s *next_dirty;
defined_name_t dn;
} ident_hash_elem_t;
typedef struct {
const char *word;
unsigned short token; /* flags here too */
unsigned short sem_value; /* semantic value for predefined tokens */
ident_hash_elem_t *next;
/* the fields above must correspond to struct ident_hash_elem */
short min_args; /* Minimum number of arguments. */
short max_args; /* Maximum number of arguments. */
short ret_type; /* The return type used by the compiler. */
unsigned short arg_type1; /* Type of argument 1 */
unsigned short arg_type2; /* Type of argument 2 */
unsigned short arg_type3; /* Type of argument 1 */
unsigned short arg_type4; /* Type of argument 2 */
short arg_index; /* Index pointing to where to find arg type */
short Default; /* an efun to use as default for last
* argument */
} keyword_t;
typedef struct lpc_predef_s {
char *flag;
struct lpc_predef_s *next;
} lpc_predef_t;
#define EXPECT_ELSE 1
#define EXPECT_ENDIF 2
extern lpc_predef_t *lpc_predefs;
#define isalunum(c) (uisalnum(c) || (c) == '_')
/*
* Information about all instructions. This is not really needed as the
* automatically generated efun_arg_types[] should be used.
*/
/* indicates that the instruction is only used at compile time */
#define F_ALIAS_FLAG 1024
typedef struct {
short max_arg, min_arg; /* Can't use char to represent -1 */
short type[4]; /* need a short to hold the biggest type flag */
short Default;
short ret_type;
const char *name;
int arg_index;
} instr_t;
/*
* lex.c
*/
extern instr_t instrs[512];
extern int current_line;
extern int current_line_base;
extern int current_line_saved;
extern int total_lines;
extern char *current_file;
extern int current_file_id;
extern int pragmas;
extern int num_parse_error;
extern lpc_predef_t *lpc_predefs;
extern int efun_arg_types[];
extern char yytext[MAXLINE];
extern keyword_t predefs[];
extern int lex_fatal;
extern int arrow_efun, evaluate_efun, this_efun, to_float_efun, to_int_efun, new_efun;
INLINE void push_function_context (void);
void pop_function_context (void);
int yylex (void);
void init_num_args (void);
const char *query_instr_name (int);
char *get_f_name (int);
void set_inc_list (char *);
void start_new_file (int);
void end_new_file (void);
int lookup_predef (char *);
void add_predefines (void);
char *main_file_name (void);
char *get_defined_name (defined_name_t *);
ident_hash_elem_t *find_or_add_ident (const char *, int);
ident_hash_elem_t *find_or_add_perm_ident (const char *);
ident_hash_elem_t *lookup_ident (const char *);
void free_unused_identifiers (void);
void init_identifiers (void);
char *show_error_context (void);
#ifdef DEBUGMALLOC_EXTENSIONS
void mark_all_defines (void);
#endif
#endif
