The R Project SVN R

/*

 *  R : A Computer Language for Statistical Data Analysis

 *  Copyright (C) 1995, 1996  Robert Gentleman and Ross Ihaka

 *  Copyright (C) 1998--2017  The R Core Team.

 *

 *  This program is free software; you can redistribute it and/or modify

 *  it under the terms of the GNU General Public License as published by

 *  the Free Software Foundation; either version 2 of the License, or

 *  (at your option) any later version.

 *

 *  This program is distributed in the hope that it will be useful,

 *  but WITHOUT ANY WARRANTY; without even the implied warranty of

 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 *  GNU General Public License for more details.

 *

 *  You should have received a copy of the GNU General Public License

 *  along with this program; if not, a copy is available at

 *  https://www.R-project.org/Licenses/

 */

/* This header file is to provide hooks for alternative front-ends,

   e.g. GUIs such as GNOME and Cocoa.  It is only used on Unix-alikes.

   All entries here should be documented in doc/manual/R-exts.texi.

   It should not be included by package sources unless they are

   providing such a front-end.

   If CSTACK_DEFNS is defined, also define HAVE_UINTPTR_T (if true)

   before including this, perhaps by including Rconfig.h from C code

   (for C++ you need to test the C++ compiler in use).

*/

#ifndef RINTERFACE_H_

#define RINTERFACE_H_

#include <R_ext/Boolean.h>

#ifdef __cplusplus

/* we do not support DO_NOT_USE_CXX_HEADERS in this file */

# include <cstdio>

extern "C" {

#else

# include <stdio.h>

#endif

#if defined(__GNUC__) && __GNUC__ >= 3

# define NORET __attribute__((noreturn))

#else

# define NORET

#endif

/* from Defn.h */

/* this duplication will be removed in due course */

extern Rboolean R_Interactive;	/* TRUE during interactive use*/

extern Rboolean	R_NoEcho;	/* do not echo R code */

extern void R_RestoreGlobalEnv(void);

extern void R_RestoreGlobalEnvFromFile(const char *, Rboolean);

extern void R_SaveGlobalEnv(void);

extern void R_SaveGlobalEnvToFile(const char *);

extern void R_FlushConsole(void);

extern void R_ClearerrConsole(void);

extern void R_Suicide(const char *);

extern char *R_HomeDir(void);

extern int R_DirtyImage;	/* Current image dirty */

extern char *R_GUIType;

extern void R_setupHistory(void);

extern char *R_HistoryFile;	/* Name of the history file */

extern int R_HistorySize;	/* Size of the history file */

extern int R_RestoreHistory;	/* restore the history file? */

extern char *R_Home;		    /* Root of the R tree */

# define jump_to_toplevel	Rf_jump_to_toplevel

# define mainloop		Rf_mainloop

# define onintr			Rf_onintr

# define onintrNoResume		Rf_onintrNoResume

void NORET jump_to_toplevel(void);

void mainloop(void);

void onintr(void);

void onintrNoResume(void);

#ifndef DEFN_H_

extern void* R_GlobalContext;    /* Need opaque pointer type for export */

#endif

void process_site_Renviron(void);

void process_system_Renviron(void);

void process_user_Renviron(void);

#ifdef __cplusplus

extern std::FILE * R_Consolefile;

extern std::FILE * R_Outputfile;

#else

extern FILE * R_Consolefile;

extern FILE * R_Outputfile;

#endif

/* in ../unix/sys-unix.c */

void R_setStartTime(void);

void fpu_setup(Rboolean);

/* in ../unix/system.c */

extern int R_running_as_main_program;

#ifdef CSTACK_DEFNS

/* duplicating older Defn.h.

   Note: this is never used when including Rinterface.h from R itself

*/

#if !defined(HAVE_UINTPTR_T) && !defined(uintptr_t)

 typedef unsigned long uintptr_t;

#else

# ifndef __cplusplus

#  include <stdint.h>

# elif __cplusplus >= 201103L

#  include <cstdint>

# endif

#endif

extern uintptr_t R_CStackLimit;	/* C stack limit */

extern uintptr_t R_CStackStart;	/* Initial stack address */

#endif

/* formerly in src/unix/devUI.h */

#ifdef R_INTERFACE_PTRS

#include <Rinternals.h> // for SEXP

#include <R_ext/RStartup.h> // for SA_TYPE

#ifdef __SYSTEM__

# define extern

#endif

extern void (*ptr_R_Suicide)(const char *);

extern void (*ptr_R_ShowMessage)(const char *);

extern int  (*ptr_R_ReadConsole)(const char *, unsigned char *, int, int);

extern void (*ptr_R_WriteConsole)(const char *, int);

extern void (*ptr_R_WriteConsoleEx)(const char *, int, int);

extern void (*ptr_R_ResetConsole)(void);

extern void (*ptr_R_FlushConsole)(void);

extern void (*ptr_R_ClearerrConsole)(void);

extern void (*ptr_R_Busy)(int);

extern void (*ptr_R_CleanUp)(SA_TYPE, int, int);

extern int  (*ptr_R_ShowFiles)(int, const char **, const char **,

			       const char *, Rboolean, const char *);

extern int  (*ptr_R_ChooseFile)(int, char *, int);

extern int  (*ptr_R_EditFile)(const char *);

extern void (*ptr_R_loadhistory)(SEXP, SEXP, SEXP, SEXP);

extern void (*ptr_R_savehistory)(SEXP, SEXP, SEXP, SEXP);

extern void (*ptr_R_addhistory)(SEXP, SEXP, SEXP, SEXP);

// added in 3.0.0

extern int  (*ptr_R_EditFiles)(int, const char **, const char **, const char *);

// naming follows earlier versions in R.app

extern SEXP (*ptr_do_selectlist)(SEXP, SEXP, SEXP, SEXP);

extern SEXP (*ptr_do_dataentry)(SEXP, SEXP, SEXP, SEXP);

extern SEXP (*ptr_do_dataviewer)(SEXP, SEXP, SEXP, SEXP);

extern void (*ptr_R_ProcessEvents)();

/* These two are not used by R itself, but are used by the tcltk package */

extern int  (*R_timeout_handler)(void);

extern long R_timeout_val;

#endif /* R_INTERFACE_PTRS */

#ifdef __SYSTEM__

# undef extern

#endif

extern int R_SignalHandlers;

#ifdef __cplusplus

}

#endif

#endif /* RINTERFACE_H_ */