-/* Copyright (C) 1994, 1995, 1996 Free Software Foundation, Inc.
- *
- * 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, 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 software; see the file COPYING. If not, write to
- * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * As a special exception, the Free Software Foundation gives permission
- * for additional uses of the text contained in its release of GUILE.
- *
- * The exception is that, if you link the GUILE library with other files
- * to produce an executable, this does not by itself cause the
- * resulting executable to be covered by the GNU General Public License.
- * Your use of that executable is in no way restricted on account of
- * linking the GUILE library code into it.
- *
- * This exception does not however invalidate any other reasons why
- * the executable file might be covered by the GNU General Public License.
- *
- * This exception applies only to the code released by the
- * Free Software Foundation under the name GUILE. If you copy
- * code from other Free Software Foundation releases into a copy of
- * GUILE, as the General Public License permits, the exception does
- * not apply to the code that you add in this way. To avoid misleading
- * anyone as to the status of such modified files, you must delete
- * this exception notice from them.
- *
- * If you write modifications of your own for GUILE, it is your choice
- * whether to permit this exception to apply to your modifications.
- * If you do not wish that, delete this exception notice.
- */
-\f
-
-
-\f
-
-#include <stdio.h>
-#include <sys/param.h>
-#include "gscm.h"
-#include "_scm.h"
-
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-#ifdef HAVE_STRING_H
-#include <string.h>
-#endif
-
-\f
-
-extern char *getenv ();
-
-\f
-/* {Top Level Evaluation}
- *
- * Top level evaluation has to establish a dynamic root context,
- * enable Scheme signal handlers, and catch global escapes (errors, quits,
- * aborts, restarts, and execs) from the interpreter.
- */
-
-
-/* {Printing Objects to Strings}
- */
-
-#ifdef __STDC__
-static GSCM_status
-gscm_portprint_obj (SCM port, SCM obj)
-#else
-static GSCM_status
-gscm_portprint_obj (port, obj)
- SCM port;
- SCM obj;
-#endif
-{
- scm_prin1 (obj, port, 1);
- return GSCM_OK;
-}
-
-
-struct seval_str_frame
-{
- GSCM_status status;
- SCM * answer;
- GSCM_top_level top;
- char * str;
-};
-
-#ifdef __STDC__
-static void
-_seval_str_fn (void * vframe)
-#else
-static void
-_seval_str_fn (vframe)
- void * vframe;
-#endif
-{
- struct seval_str_frame * frame;
- frame = (struct seval_str_frame *)vframe;
- frame->status = gscm_seval_str (frame->answer, frame->top, frame->str);
-}
-
-
-
-#ifdef __STDC__
-static GSCM_status
-gscm_strprint_obj (SCM * answer, SCM obj)
-#else
-static GSCM_status
-gscm_strprint_obj (answer, obj)
- SCM * answer;
- SCM obj;
-#endif
-{
- SCM str;
- SCM port;
- GSCM_status stat;
- str = scm_makstr (64, 0);
- port = scm_mkstrport (SCM_MAKINUM (0), str, SCM_OPN | SCM_WRTNG, "gscm_strprint_obj");
- stat = gscm_portprint_obj (port, obj);
- if (stat == GSCM_OK)
- *answer = str;
- else
- *answer = SCM_BOOL_F;
- return stat;
-}
-
-#ifdef __STDC__
-static GSCM_status
-gscm_cstr (char ** answer, SCM obj)
-#else
-static GSCM_status
-gscm_cstr (answer, obj)
- char ** answer;
- SCM obj;
-#endif
-{
- GSCM_status stat;
-
- *answer = (char *)malloc (SCM_LENGTH (obj));
- stat = GSCM_OK;
- if (!*answer)
- stat = GSCM_OUT_OF_MEM;
- else
- memcpy (*answer, SCM_CHARS (obj), SCM_LENGTH (obj));
- return stat;
-}
-
-
-/* {Invoking The Interpreter}
- */
-
-#ifdef __STDC__
-static SCM
-gscm_silent_repl (SCM env)
-#else
-static SCM
-gscm_silent_repl (env)
- SCM env;
-#endif
-{
- SCM source;
- SCM answer;
- answer = SCM_UNSPECIFIED;
- while ((source = scm_read (SCM_UNDEFINED, SCM_UNDEFINED, SCM_UNDEFINED)) != SCM_EOF_VAL)
- answer = scm_eval_x (source);
- return answer;
-}
-
-
-#ifdef _UNICOS
-typedef int setjmp_type;
-#else
-typedef long setjmp_type;
-#endif
-
-#ifdef __STDC__
-static GSCM_status
-_eval_port (SCM * answer, GSCM_top_level toplvl, SCM port, int printp)
-#else
-static GSCM_status
-_eval_port (answer, toplvl, port, printp)
- SCM * answer;
- GSCM_top_level toplvl;
- SCM port;
- int printp;
-#endif
-{
- SCM saved_inp;
- GSCM_status status;
- setjmp_type i;
- static int deja_vu = 0;
- SCM ignored;
-
- if (deja_vu)
- return GSCM_ILLEGALLY_REENTERED;
-
- ++deja_vu;
- /* Take over signal handlers for all the interesting signals.
- */
- scm_init_signals ();
-
-
- /* Default return values:
- */
- if (!answer)
- answer = &ignored;
- status = GSCM_OK;
- *answer = SCM_BOOL_F;
-
- /* Perform evalutation under a new dynamic root.
- *
- */
- SCM_BASE (scm_rootcont) = (SCM_STACKITEM *) & i;
-#ifdef DEBUG_EXTENSIONS
- SCM_DFRAME (scm_rootcont) = last_debug_info_frame = 0;
-#endif
- saved_inp = scm_cur_inp;
- i = setjmp (SCM_JMPBUF (scm_rootcont));
-#ifdef STACK_CHECKING
- scm_stack_checking_enabled_p = SCM_STACK_CHECKING_P;
-#endif
- if (!i)
- {
- scm_gc_heap_lock = 0;
- scm_ints_disabled = 0;
- /* need to close loading files here. */
- scm_cur_inp = port;
- {
- SCM top_env;
- top_env = SCM_EOL;
- *answer = gscm_silent_repl (top_env);
- }
- scm_cur_inp = saved_inp;
- if (printp)
- status = gscm_strprint_obj (answer, *answer);
- }
- else
- {
- scm_cur_inp = saved_inp;
- *answer = scm_exitval;
- if (printp)
- gscm_strprint_obj (answer, *answer);
- status = GSCM_ERROR;
- }
-
- scm_gc_heap_lock = 1;
- scm_ints_disabled = 1;
- scm_restore_signals ();
- --deja_vu;
- return status;
-}
-
-#ifdef __STDC__
-static GSCM_status
-seval_str (SCM *answer, GSCM_top_level toplvl, char * str)
-#else
-static GSCM_status
-seval_str (answer, toplvl, str)
- SCM *answer;
- GSCM_top_level toplvl;
- char * str;
-#endif
-{
- SCM scheme_str;
- SCM port;
- GSCM_status status;
-
- scheme_str = scm_makfromstr (str, strlen (str), 0);
- port = scm_mkstrport (SCM_MAKINUM (0), scheme_str, SCM_OPN | SCM_RDNG, "gscm_seval_str");
- status = _eval_port (answer, toplvl, port, 0);
- return status;
-}
-
-
-#ifdef __STDC__
-GSCM_status
-gscm_seval_str (SCM *answer, GSCM_top_level toplvl, char * str)
-#else
-GSCM_status
-gscm_seval_str (answer, toplvl, str)
- SCM *answer;
- GSCM_top_level toplvl;
- char * str;
-#endif
-{
- SCM_STACKITEM i;
- GSCM_status status;
- scm_stack_base = &i;
- status = seval_str (answer, toplvl, str);
- scm_stack_base = 0;
- return status;
-}
-
-#ifdef __STDC__
-void
-format_load_command (char * buf, char *file_name)
-#else
-void
-format_load_command (buf, file_name)
- char * buf;
- char *file_name;
-#endif
-{
- char quoted_name[MAXPATHLEN + 1];
- int source;
- int dest;
-
- for (source = dest = 0; file_name[source]; ++source)
- {
- if (file_name[source] == '"')
- quoted_name[dest++] = '\\';
- quoted_name[dest++] = file_name[source];
- }
- quoted_name[dest] = 0;
- sprintf (buf, "(%%try-load \"%s\")", quoted_name);
-}
-
-#ifdef __STDC__
-GSCM_status
-gscm_seval_file (SCM *answer, GSCM_top_level toplvl, char * file_name)
-#else
-GSCM_status
-gscm_seval_file (answer, toplvl, file_name)
- SCM *answer;
- GSCM_top_level toplvl;
- char * file_name;
-#endif
-{
- char command[MAXPATHLEN * 3];
- format_load_command (command, file_name);
- return gscm_seval_str (answer, toplvl, command);
-}
-
-
-#ifdef __STDC__
-static GSCM_status
-eval_str (char ** answer, GSCM_top_level toplvl, char * str)
-#else
-static GSCM_status
-eval_str (answer, toplvl, str)
- char ** answer;
- GSCM_top_level toplvl;
- char * str;
-#endif
-{
- SCM sanswer;
- SCM scheme_str;
- SCM port;
- GSCM_status status;
-
- scheme_str = scm_makfromstr (str, strlen (str), 0);
- port = scm_mkstrport (SCM_MAKINUM(0), scheme_str, SCM_OPN | SCM_RDNG, "gscm_eval_str");
- status = _eval_port (&sanswer, toplvl, port, 1);
- if (answer)
- {
- if (status == GSCM_OK)
- status = gscm_cstr (answer, sanswer);
- else
- *answer = 0;
- }
- return status;
-}
-
-
-#ifdef __STDC__
-GSCM_status
-gscm_eval_str (char ** answer, GSCM_top_level toplvl, char * str)
-#else
-GSCM_status
-gscm_eval_str (answer, toplvl, str)
- char ** answer;
- GSCM_top_level toplvl;
- char * str;
-#endif
-{
- SCM_STACKITEM i;
- GSCM_status status;
- scm_stack_base = &i;
- status = eval_str (answer, toplvl, str);
- scm_stack_base = 0;
- return status;
-}
-
-
-#ifdef __STDC__
-GSCM_status
-gscm_eval_file (char ** answer, GSCM_top_level toplvl, char * file_name)
-#else
-GSCM_status
-gscm_eval_file (answer, toplvl, file_name)
- char ** answer;
- GSCM_top_level toplvl;
- char * file_name;
-#endif
-{
- char command[MAXPATHLEN * 3];
- format_load_command (command, file_name);
- return gscm_eval_str (answer, toplvl, command);
-}
-
-
-
-\f
-/* {Error Messages}
- */
-
-
-#ifdef __GNUC__
-# define AT(X) [X] =
-#else
-# define AT(X)
-#endif
-
-static char * gscm_error_msgs[] =
-{
- AT(GSCM_OK) "No error.",
- AT(GSCM_ERROR) "ERROR in init file.",
- AT(GSCM_ILLEGALLY_REENTERED) "Gscm function was illegally reentered.",
- AT(GSCM_OUT_OF_MEM) "Out of memory.",
- AT(GSCM_ERROR_OPENING_FILE) "Error opening file.",
- AT(GSCM_ERROR_OPENING_INIT_FILE) "Error opening init file."
-};
-
-#ifdef __STDC__
-char *
-gscm_error_msg (int n)
-#else
-char *
-gscm_error_msg (n)
- int n;
-#endif
-{
- if ((n < 0) || (n > (sizeof (gscm_error_msgs) / sizeof (char *))))
- return "Unrecognized error.";
- else
- return gscm_error_msgs[n];
-}
-
-
-\f
-/* {Defining New Procedures}
- */
-
-#ifdef __STDC__
-SCM
-gscm_make_subr (SCM (*fn)(), int req, int opt, int varp, char * doc)
-#else
-SCM
-gscm_make_subr (fn, req, opt, varp, doc)
- SCM (*fn)();
- int req;
- int opt;
- int varp;
- char * doc;
-#endif
-{
- return scm_make_gsubr ("*anonymous*", req, opt, varp, fn);
-}
-\f
-#ifdef __STDC__
-int
-gscm_2_char (SCM c)
-#else
-int
-gscm_2_char (c)
- SCM c;
-#endif
-{
- SCM_ASSERT (SCM_ICHRP (c), c, SCM_ARG1, "gscm_2_char");
- return SCM_ICHR (c);
-}
-
-\f
-
-#ifdef __STDC__
-void
-gscm_2_str (char ** out, int * len_out, SCM * objp)
-#else
-void
-gscm_2_str (out, len_out, objp)
- char ** out;
- int * len_out;
- SCM * objp;
-#endif
-{
- SCM_ASSERT (SCM_NIMP (*objp) && SCM_STRINGP (*objp), *objp, SCM_ARG3, "gscm_2_str");
- if (out)
- *out = SCM_CHARS (*objp);
- if (len_out)
- *len_out = SCM_LENGTH (*objp);
-}
-\f
-
-#ifdef __STDC__
-void
-gscm_error (char * message, SCM args)
-#else
-void
-gscm_error (message, args)
- char * message;
- SCM args;
-#endif
-{
- SCM errsym;
- SCM str;
-
- errsym = SCM_CAR (scm_intern ("error", 5));
- str = scm_makfrom0str (message);
- scm_throw (errsym, scm_cons (str, args));
-}
-
-\f
-#ifdef __STDC__
-GSCM_status
-gscm_run_scm (int argc, char ** argv, FILE * in, FILE * out, FILE * err, GSCM_status (*initfn)(), char * initfile, char * initcmd)
-#else
-GSCM_status
-gscm_run_scm (argc, argv, in, out, err, initfn, initfile, initcmd)
- int argc;
- char ** argv;
- FILE * in;
- FILE * out;
- FILE * err;
- GSCM_status (*initfn)();
- char * initfile;
- char * initcmd;
-#endif
-{
- SCM_STACKITEM i;
- GSCM_status status;
- GSCM_top_level top;
-
- scm_ports_prehistory ();
- scm_smob_prehistory ();
- scm_tables_prehistory ();
- scm_init_storage (0);
- scm_start_stack (&i, in, out, err);
- scm_init_gsubr ();
- scm_init_curry ();
- scm_init_feature ();
-/* scm_init_debug (); */
- scm_init_alist ();
- scm_init_append ();
- scm_init_arbiters ();
- scm_init_async ();
- scm_init_boolean ();
- scm_init_chars ();
- scm_init_continuations ();
- scm_init_dynwind ();
- scm_init_eq ();
- scm_init_error ();
- scm_init_fports ();
- scm_init_files ();
- scm_init_gc ();
- scm_init_hash ();
- scm_init_hashtab ();
- scm_init_kw ();
- scm_init_list ();
- scm_init_lvectors ();
- scm_init_numbers ();
- scm_init_pairs ();
- scm_init_ports ();
- scm_init_procs ();
- scm_init_procprop ();
- scm_init_scmsigs ();
- scm_init_stackchk ();
- scm_init_strports ();
- scm_init_struct ();
- scm_init_symbols ();
- scm_init_load ();
- scm_init_print ();
- scm_init_read ();
- scm_init_sequences ();
- scm_init_stime ();
- scm_init_strings ();
- scm_init_strorder ();
- scm_init_mbstrings ();
- scm_init_strop ();
- scm_init_throw ();
- scm_init_variable ();
- scm_init_vectors ();
- scm_init_version ();
- scm_init_weaks ();
- scm_init_vports ();
- scm_init_eval ();
- scm_init_ramap ();
- scm_init_unif ();
- scm_init_simpos ();
- scm_init_elisp ();
- scm_init_mallocs ();
- scm_init_cnsvobj ();
- scm_init_guile ();
- initfn ();
-
- /* Save the argument list to be the return value of (program-arguments).
- */
- scm_progargs = scm_makfromstrs (argc, argv);
-
- scm_gc_heap_lock = 0;
- errno = 0;
- scm_ints_disabled = 1;
-
-/* init_basic (); */
-
-/* init_init(); */
-
- if (initfile == NULL)
- {
- initfile = getenv ("GUILE_INIT_PATH");
- if (initfile == NULL)
- initfile = SCM_IMPLINIT;
- }
-
- if (initfile == NULL)
- {
- status = GSCM_OK;
- }
- else
- {
- SCM answer;
-
- status = gscm_seval_file (&answer, -1, initfile);
- if ((status == GSCM_OK) && (answer == SCM_BOOL_F))
- status = GSCM_ERROR_OPENING_INIT_FILE;
- }
-
- top = SCM_EOL;
-
- if (status == GSCM_OK)
- {
- scm_sysintern ("*stdin*", scm_cur_inp);
- status = gscm_seval_str (0, top, initcmd);
- }
- return status;
-}
-
-\f
-
-#ifdef __STDC__
-void
-scm_init_guile (void)
-#else
-void
-scm_init_guile ()
-#endif
-{
-#include "gscm.x"
-}
-
HCoop / bpt / guile.git / blobdiff