/* cslread.h Copyright (C) Codemist Ltd, 1989-2007 */
/*
* Header defining the structure of the package system for use by
* intern and its friends.
*/
/*
* This code may be used and modified, and redistributed in binary
* or source form, subject to the "CCL Public License", which should
* accompany it. This license is a variant on the BSD license, and thus
* permits use of code derived from this in either open and commercial
* projects: but it does require that updates to this code be made
* available back to the originators of the package.
* Before merging other code in with this or linking this code
* with other packages or libraries please check that the license terms
* of the other material are compatible with those of this.
*/
/* Signature: 31db19a9 18-Jan-2007 */
#ifndef header_read_h
#define header_read_h 1
typedef struct Package
{
Header header;
Lisp_Object packageid; /* 'package as type of this struct */
Lisp_Object internals; /* either vector or list of vectors */
Lisp_Object vinternals; /* number of 16K vectors in this package */
Lisp_Object ninternals; /* number of symbols in this package */
Lisp_Object pkgflags; /* place to put randomish flags etc */
#ifdef COMMON
/*
* Standard Lisp can have a much simpler setup than Common Lisp here
*/
Lisp_Object externals; /* vector or list of vectors */
Lisp_Object vexternals; /* number of vectors in above */
Lisp_Object nexternals; /* number of symbols involved */
Lisp_Object name; /* name of this package */
Lisp_Object nicknames; /* list of nicknames */
Lisp_Object use_list; /* list of things that this package uses */
Lisp_Object used_by_list; /* list of packages that use this one */
Lisp_Object shadowing_symbols; /* magic to cope with name clashes */
#endif
} Package;
/*
* The following macros are coded the way they are so as to encourage the
* C compiler into using the address modes I want...
* Rationalize at your peril!
*/
#define packhdr_(p) (*(Header *) ((char *)(p) + (0 - TAG_VECTOR)))
#define packid_(p) (*(Lisp_Object *)((char *)(p) + (CELL - TAG_VECTOR)))
#define packint_(p) (*(Lisp_Object *)((char *)(p) + (2*CELL - TAG_VECTOR)))
#define packvint_(p) (*(Lisp_Object *)((char *)(p) + (3*CELL - TAG_VECTOR)))
#define packnint_(p) (*(Lisp_Object *)((char *)(p) + (4*CELL - TAG_VECTOR)))
#define packflags_(p) (*(Lisp_Object *)((char *)(p) + (5*CELL - TAG_VECTOR)))
#ifdef COMMON
#define packext_(p) (*(Lisp_Object *)((char *)(p) + (6*CELL - TAG_VECTOR)))
#define packvext_(p) (*(Lisp_Object *)((char *)(p) + (7*CELL - TAG_VECTOR)))
#define packnext_(p) (*(Lisp_Object *)((char *)(p) + (8*CELL - TAG_VECTOR)))
#define packname_(p) (*(Lisp_Object *)((char *)(p) + (9*CELL - TAG_VECTOR)))
#define packnick_(p) (*(Lisp_Object *)((char *)(p) + (10*CELL - TAG_VECTOR)))
#define packuses_(p) (*(Lisp_Object *)((char *)(p) + (11*CELL - TAG_VECTOR)))
#define packused_(p) (*(Lisp_Object *)((char *)(p) + (12*CELL - TAG_VECTOR)))
#define packshade_(p) (*(Lisp_Object *)((char *)(p) + (13*CELL - TAG_VECTOR)))
#endif
#define CP qvalue(current_package)
#ifdef COMMON
# define ESCAPE_CHAR '\\'
#else
# define ESCAPE_CHAR '!'
#endif
#define NO_PREFIX 'x'
extern CSLbool is_constituent(int c);
extern Lisp_Object intern(int len, CSLbool escaped);
extern Lisp_Object iintern(Lisp_Object str, int32_t h, Lisp_Object p,
int str_is_ok /* NOT a bool */);
extern Lisp_Object find_package(char *name, int len);
extern Lisp_Object read_from_vector(char *v);
#ifndef MAX_PROMPT_LENGTH
# define MAX_PROMPT_LENGTH 256
#endif
extern char prompt_string[MAX_PROMPT_LENGTH];
#define INIT_OBVECI_SIZE 16384
#define INIT_OBVECX_SIZE 16384
#endif /* header_read_h */
/* end of cslread.h */