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* gh_init.c (gh_standard_handler): Return SCM_BOOL_F, not garbage.

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Merge GH interface library into libguile.
* gh.h, gh_data.c, gh_eval.c, gh_funcs.c, gh_init.c, gh_io.c,
gh_list.c, gh_predicates.c, gh_test_c, gh_test_c.c, gh_test_repl,
gh_test_repl.c: New files.
* Makefile.am (libguile_la_SOURCES): Add gh_data.c, gh_eval.c,
gh_funcs.c, gh_init.c, gh_io.c, gh_list.c, gh_predicates.c.  Move
_scm.h to ...
(EXTRA_libguile_la_SOURCES): ... here.
(pkginclude_HEADERS): Add variable, to get gh.h installed.
(THREAD_LIBS, check_ldadd, check_PROGRAMS, gh_test_c_SOURCES,
gh_test_c_LDADD, gh_test_repl_SOURCES, gh_test_repl_LDADD):
New variables, describing how to build the gh test programs.
* configure.in: Check for -lm, -lsocket, -lnsl; we need this to
build the test programs, and we probably should have been linking
libguile.la against them all along, to support AIX shared libs.
Add cflags for threads to CFLAGS; add libs for threads to new
variable THREAD_LIBS, used in Makefile.am.
* ChangeLog-gh: log from old `gh' subdirectory.
* Makefile.in, configure, scmconfig.h.in: Rebuilt.
This commit is contained in:
Jim Blandy 1997-04-14 06:42:27 +00:00
parent f4d7dfb69d
commit ee2a8b9bdd
17 changed files with 2306 additions and 184 deletions
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107
libguile/gh_init.c Normal file
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/* Copyright (C) 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.
*/
/* Guile high level (gh_) interface, initialization-related stuff */
#include <stdio.h>
#include <gh.h>
typedef void (*main_prog_t) (int argc, char **argv);
typedef void (*repl_prog_t) (int argc, char **argv);
/* This function takes care of all real GH initialization. Since it's
called by scm_boot_guile, it can safely work with heap objects, or
call functions that do so. */
static void
gh_launch_pad (void *closure, int argc, char **argv)
{
main_prog_t c_main_prog = (main_prog_t) closure;
gh_eval_str ("(primitive-load-path \"ice-9/boot-9.scm\")");
c_main_prog (argc, argv);
exit (0);
}
/* starts up the Scheme interpreter, and stays in it. c_main_prog()
is the address of the user's main program, since gh_enter() never
returns. */
void
gh_enter (int argc, char *argv[], main_prog_t c_main_prog)
{
scm_boot_guile (argc, argv, gh_launch_pad, c_main_prog);
/* never returns */
}
/* offer a REPL to the C programmer; for now I just invoke the ice-9
REPL that is written in Scheme */
void
gh_repl ()
{
/* gh_eval_str("(primitive-load-path \"ice-9/boot-9.scm\")"); */
gh_eval_str ("(top-repl)");
}
/* libguile programmers need exception handling mechanisms; here is
the recommended way of doing it with the gh_ interface */
/* gh_catch() -- set up an exception handler for a particular type of
error (or any thrown error if tag is SCM_BOOL_T); see
../libguile/throw.c for the comments explaining scm_internal_catch */
SCM
gh_catch (SCM tag, scm_catch_body_t body, void *body_data,
scm_catch_handler_t handler, void *handler_data)
{
return scm_internal_catch (tag, body, body_data, handler, handler_data);
}
SCM
gh_standard_handler (void *data, SCM tag, SCM throw_args)
{
fprintf (stderr, "\nJust got an error; tag is\n ");
scm_display (tag, scm_current_output_port ());
scm_newline (scm_current_output_port ());
scm_newline (scm_current_output_port ());
return SCM_BOOL_F;
}