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xenocara/app/xedit/lisp/private.h
matthieu 616b6f15ab Importing from X.Org 7.2RC2
2006-11-25 20:07:29 +00:00

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/*
* Copyright (c) 2001 by The XFree86 Project, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE XFREE86 PROJECT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Except as contained in this notice, the name of the XFree86 Project shall
* not be used in advertising or otherwise to promote the sale, use or other
* dealings in this Software without prior written authorization from the
* XFree86 Project.
*
* Author: Paulo César Pereira de Andrade
*/
/* $XdotOrg: app/xedit/lisp/private.h,v 1.3 2004/12/04 00:43:13 kuhn Exp $ */
/* $XFree86: xc/programs/xedit/lisp/private.h,v 1.41 2003/05/27 22:27:04 tsi Exp $ */
#ifndef Lisp_private_h
#define Lisp_private_h
#include <X11/Xos.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#if defined(X_POSIX_C_SOURCE)
#define _POSIX_C_SOURCE X_POSIX_C_SOURCE
#include <setjmp.h>
#undef _POSIX_C_SOURCE
#else
#include <setjmp.h>
#endif
#include <unistd.h>
#include <sys/time.h>
#include "lisp/internal.h"
#include "lisp/core.h"
#ifdef DEBUGGER
#include "lisp/debugger.h"
#endif
#include "lisp/helper.h"
#include "lisp/string.h"
#include "lisp/struct.h"
/*
* Defines
*/
#define STRTBLSZ 23
#define MULTIPLE_VALUES_LIMIT 127
#define MAX_STACK_DEPTH 16384
#define FEATURES \
(lisp__data.features->data.atom->a_object ? \
(LispObj *)lisp__data.features->data.atom->property->value : \
NIL)
#define PACK lisp__data.packlist
#define PACKAGE lisp__data.package->data.atom->property->value
#define MOD lisp__data.modlist
#define COD lisp__data.codlist
#define RUN lisp__data.runlist
#define RES lisp__data.reslist
#define DBG lisp__data.dbglist
#define BRK lisp__data.brklist
#define PRO lisp__data.prolist
#define SINPUT lisp__data.input
#define SOUTPUT lisp__data.output
#define STANDARD_INPUT \
lisp__data.standard_input->data.atom->property->value
#define STANDARD_OUTPUT \
lisp__data.standard_output->data.atom->property->value
#define STANDARDSTREAM(file, desc, flags) \
LispNewStandardStream(file, desc, flags)
/*
* Types
*/
typedef struct _LispStream LispStream;
typedef struct _LispBlock LispBlock;
typedef struct _LispOpaque LispOpaque;
typedef struct _LispModule LispModule;
typedef struct _LispProperty LispProperty;
typedef struct _LispObjList LispObjList;
typedef struct _LispStringHash LispStringHash;
typedef struct _LispCharInfo LispCharInfo;
/* Normal function/macro arguments */
typedef struct _LispNormalArgs {
int num_symbols;
LispObj **symbols; /* symbol names */
} LispNormalArgs;
/* &optional function/macro arguments */
typedef struct _LispOptionalArgs {
int num_symbols;
LispObj **symbols; /* symbol names */
LispObj **defaults; /* default values, when unspecifed */
LispObj **sforms; /* T if variable specified, NIL otherwise */
} LispOptionalArgs;
/* &key function/macro arguments */
typedef struct _LispKeyArgs {
int num_symbols;
LispObj **symbols; /* symbol names */
LispObj **defaults; /* default values */
LispObj **sforms; /* T if variable specified, NIL otherwise */
LispObj **keys; /* key names, for special keywords */
} LispKeyArgs;
/* &aux function/macro arguments */
typedef struct _LispAuxArgs {
int num_symbols;
LispObj **symbols; /* symbol names */
LispObj **initials; /* initial values */
} LispAuxArgs;
/* characters in the field description have the format:
* '.' normals has a list of normal arguments
* 'o' optionals has a list of &optional arguments
* 'k' keys has a list of &key arguments
* 'r' rest is a valid pointer to a &rest symbol
* 'a' auxs has a list of &aux arguments
*/
typedef struct _LispArgList {
LispNormalArgs normals;
LispOptionalArgs optionals;
LispKeyArgs keys;
LispObj *rest;
LispAuxArgs auxs;
int num_arguments;
char *description;
} LispArgList;
typedef enum _LispDocType_t {
LispDocVariable,
LispDocFunction,
LispDocStructure,
LispDocType,
LispDocSetf
} LispDocType_t;
struct _LispProperty {
/* may be used by multiple packages */
unsigned int refcount;
/* package where the property was created */
LispPackage *package;
/* value of variable attached to symbol */
LispObj *value;
union {
/* function attached to symbol */
LispObj *function;
/* builtin function attached to symbol*/
LispBuiltin *builtin;
} fun;
/* function/macro argument list description */
LispArgList *alist;
/* symbol properties list */
LispObj *properties;
/* setf method */
LispObj *setf;
/* setf argument list description */
LispArgList *salist;
/* structure information */
struct {
LispObj *definition;
#define STRUCT_NAME -3
#define STRUCT_CHECK -2
#define STRUCT_CONSTRUCTOR -1
int function; /* if >= 0, it is a structure field index */
} structure;
};
struct _LispAtom {
/* hint: dynamically binded variable */
unsigned int dyn : 1;
/* Property has useful data in value field */
unsigned int a_object : 1;
/* Property has useful data in fun.function field */
unsigned int a_function : 1;
/* Property has useful data in fun.builtin field */
unsigned int a_builtin : 1;
/* Property has useful data in fun.function field */
unsigned int a_compiled : 1;
/* Property has useful data in properties field */
unsigned int a_property : 1;
/* Property has useful data in setf field */
unsigned int a_defsetf : 1;
/* Property has useful data in defstruct field */
unsigned int a_defstruct : 1;
/* Symbol is extern */
unsigned int ext : 1;
/* Symbol must be quoted with '|' to be allow reading back */
unsigned int unreadable : 1;
/* Symbol value may need special handling when changed */
unsigned int watch : 1;
/* Symbol value is constant, cannot be changed */
unsigned int constant : 1;
char *string;
LispObj *object; /* backpointer to object ATOM */
int offset; /* in the environment list */
LispObj *package; /* package home of symbol */
LispObj *function; /* symbol function */
LispObj *name; /* symbol string */
LispProperty *property;
struct _LispAtom *next;
LispObj *documentation[5];
};
struct _LispObjList {
LispObj **pairs; /* name0 ... nameN */
int length; /* number of objects */
int space; /* space allocated in field pairs */
};
struct _LispPackage {
LispObjList glb; /* global symbols in package */
LispObjList use; /* inherited packages */
LispAtom *atoms[STRTBLSZ]; /* atoms in this package */
};
struct _LispOpaque {
int type;
char *desc;
LispOpaque *next;
};
/* These strings are never released, they are used to avoid
* the need of strcmp() on two symbol names, just compare pointers */
struct _LispStringHash {
char *string;
LispStringHash *next;
};
typedef enum _LispBlockType {
LispBlockNone, /* no block */
LispBlockTag, /* may become "invisible" */
LispBlockCatch, /* can be used to jump across function calls */
LispBlockClosure, /* hides blocks of type LispBlockTag bellow it */
LispBlockProtect, /* used by unwind-protect */
LispBlockBody /* used by tagbody and go */
} LispBlockType;
struct _LispBlock {
LispBlockType type;
LispObj *tag;
jmp_buf jmp;
int stack;
int protect;
int block_level;
#ifdef DEBUGGER
int debug_level;
int debug_step;
#endif
};
struct _LispModule {
LispModule *next;
void *handle;
LispModuleData *data;
};
typedef struct _LispUngetInfo {
char buffer[16];
int offset;
} LispUngetInfo;
struct _LispMac {
/* stack for builtin function arguments */
struct {
LispObj **values;
int base; /* base of arguments to function */
int length;
int space;
} stack;
/* environment */
struct {
LispObj **values;
Atom_id *names;
int lex; /* until where variables are visible */
int head; /* top of environment */
int length; /* number of used pairs */
int space; /* number of objects in pairs */
} env;
struct {
LispObj **values;
int count;
} returns;
struct {
LispObj **objects;
int length;
int space;
} protect;
LispObj *package; /* package object */
LispPackage *pack; /* pointer to lisp__data.package->data.package.package */
/* fast access to the KEYWORD package */
LispObj *keyword;
LispPackage *key;
/* the LISP package */
LispObj *lisp;
/* only used if the package was changed, but an error generated
* before returning to the toplevel */
LispObj *savepackage;
LispPackage *savepack;
struct {
int block_level;
int block_size;
LispObj *block_ret;
LispBlock **block;
} block;
sigjmp_buf jmp;
struct {
unsigned int expandbits : 3; /* code doesn't look like reusing cells
* so try to have a larger number of
* free cells */
unsigned int immutablebits : 1; /* need to reset immutable bits */
unsigned int timebits : 1; /* update gctime counter */
unsigned int count;
long gctime;
int average; /* of cells freed after gc calls */
} gc;
LispStringHash *strings[STRTBLSZ];
LispOpaque *opqs[STRTBLSZ];
int opaque;
LispObj *standard_input, *input, *input_list;
LispObj *standard_output, *output, *output_list;
LispObj *error_stream;
LispUngetInfo **unget;
int iunget, nunget;
int eof;
int interactive;
int errexit;
struct {
int index;
int level;
int space;
void **mem;
} mem; /* memory from Lisp*Alloc, to be release in error */
LispModule *module;
LispObj *modules;
char *prompt;
LispObj *features;
LispObj *modlist; /* module list */
LispObj *packlist; /* list of packages */
LispObj *codlist; /* current code */
LispObj *runlist[3]; /* +, ++, and +++ */
LispObj *reslist[3]; /* *, **, and *** */
#ifdef DEBUGGER
LispObj *dbglist; /* debug information */
LispObj *brklist; /* breakpoints information */
#endif
LispObj *prolist; /* protect objects list */
#ifdef SIGNALRETURNSINT
int (*sigint)(int);
int (*sigfpe)(int);
#else
void (*sigint)(int);
void (*sigfpe)(int);
#endif
int destroyed; /* reached LispDestroy, used by unwind-protect */
int running; /* there is somewhere to siglongjmp */
int ignore_errors; /* inside a ignore-errors block */
LispObj *error_condition; /* actually, a string */
int debugging; /* debugger enabled? */
#ifdef DEBUGGER
int debug_level; /* almost always the same as lisp__data.level */
int debug_step; /* control for stoping and printing output */
int debug_break; /* next breakpoint number */
LispDebugState debug;
#endif
};
struct _LispCharInfo {
char **names;
};
/*
* Prototypes
*/
void LispUseArgList(LispArgList*);
void LispFreeArgList(LispArgList*);
LispArgList *LispCheckArguments(LispFunType, LispObj*, char*, int);
LispObj *LispListProtectedArguments(LispArgList*);
LispObj *LispGetDoc(LispObj*);
LispObj *LispGetVar(LispObj*);
#ifdef DEBUGGER
void *LispGetVarAddr(LispObj*); /* used by debugger */
#endif
LispObj *LispAddVar(LispObj*, LispObj*);
LispObj *LispSetVar(LispObj*, LispObj*);
void LispUnsetVar(LispObj*);
/* only used at initialization time */
LispObj *LispNewStandardStream(LispFile*, LispObj*, int);
/* create a new package */
LispObj *LispNewPackage(LispObj*, LispObj*);
/* add package to use-list of current, and imports all extern symbols */
void LispUsePackage(LispObj*);
/* make symbol extern in the current package */
void LispExportSymbol(LispObj*);
/* imports symbol to current package */
void LispImportSymbol(LispObj*);
/* always returns the same string */
char *LispGetAtomString(char*, int);
/* destructive fast reverse, note that don't receive a LispMac* argument */
LispObj *LispReverse(LispObj *list);
char *LispIntToOpaqueType(int);
/* (print) */
void LispPrint(LispObj*, LispObj*, int);
LispBlock *LispBeginBlock(LispObj*, LispBlockType);
#define BLOCKJUMP(block) \
lisp__data.stack.length = (block)->stack; \
lisp__data.protect.length = (block)->protect; \
longjmp((block)->jmp, 1)
void LispEndBlock(LispBlock*);
/* if unwind-protect active, jump to cleanup code, else do nothing */
void LispBlockUnwind(LispBlock*);
void LispUpdateResults(LispObj*, LispObj*);
void LispTopLevel(void);
#define STRHASH(string) LispDoHashString(string)
int LispDoHashString(char*);
LispAtom *LispDoGetAtom(char *str, int);
/* get value from atom's property list */
LispObj *LispGetAtomProperty(LispAtom*, LispObj*);
/* put value in atom's property list */
LispObj *LispPutAtomProperty(LispAtom*, LispObj*, LispObj*);
/* remove value from atom's property list */
LispObj *LispRemAtomProperty(LispAtom*, LispObj*);
/* replace atom's property list */
LispObj *LispReplaceAtomPropertyList(LispAtom*, LispObj*);
/* returns function associated with symbol */
LispObj *LispSymbolFunction(LispObj*);
/* returns symbol string name */
LispObj *LispSymbolName(LispObj*);
/* define byte compiled function, or replace definition */
void LispSetAtomCompiledProperty(LispAtom*, LispObj*);
/* remove byte compiled function property */
void LispRemAtomCompiledProperty(LispAtom*);
/* define function, or replace function definition */
void LispSetAtomFunctionProperty(LispAtom*, LispObj*, LispArgList*);
/* remove function property */
void LispRemAtomFunctionProperty(LispAtom*);
/* define builtin, or replace builtin definition */
void LispSetAtomBuiltinProperty(LispAtom*, LispBuiltin*, LispArgList*);
/* remove builtin property */
void LispRemAtomBuiltinProperty(LispAtom*);
/* define setf macro, or replace current definition */
void LispSetAtomSetfProperty(LispAtom*, LispObj*, LispArgList*);
/* remove setf macro */
void LispRemAtomSetfProperty(LispAtom*);
/* create or change structure property */
void LispSetAtomStructProperty(LispAtom*, LispObj*, int);
/* remove structure property */
void LispRemAtomStructProperty(LispAtom*);
void LispProclaimSpecial(LispObj*, LispObj*, LispObj*);
void LispDefconstant(LispObj*, LispObj*, LispObj*);
void LispAddDocumentation(LispObj*, LispObj*, LispDocType_t);
void LispRemDocumentation(LispObj*, LispDocType_t);
LispObj *LispGetDocumentation(LispObj*, LispDocType_t);
/* increases storage for functions returning multiple values */
void LispMoreReturns(void);
/* increases storage for temporarily protected data */
void LispMoreProtects(void);
/* Initialization */
extern int LispArgList_t;
extern LispCharInfo LispChars[256];
/* This function will return if the interpreter cannot be stopped */
extern void LispSignal(int);
void LispDisableInterrupts(void);
void LispEnableInterrupts(void);
#define DISABLE_INTERRUPTS() LispDisableInterrupts()
#define ENABLE_INTERRUPTS() LispEnableInterrupts()
/* Value returned by LispBegin, used everywhere in the code.
* Only one interpreter instance allowed. */
extern LispMac lisp__data;
#endif /* Lisp_private_h */
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