-/* Copyright (C) 1995, 1996, 1998, 1999 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, Inc., 59 Temple Place, Suite 330,
- * Boston, MA 02111-1307 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. */
-
-/* Software engineering face-lift by Greg J. Badros, 11-Dec-1999,
- gjb@cs.washington.edu, http://www.cs.washington.edu/homes/gjb */
-
-\f
-
-#include <stdio.h>
-#include "_scm.h"
-
-#include "eval.h"
-#include "ports.h"
-#include "procprop.h"
-#include "smob.h"
-#include "strings.h"
-
-#include "validate.h"
-#include "feature.h"
-
-#ifdef HAVE_STRING_H
-#include <string.h>
-#endif
-\f
-
-static SCM *scm_loc_features;
-
-void
-scm_add_feature (const char *str)
-{
- *scm_loc_features = scm_cons (SCM_CAR (scm_intern (str, strlen (str))),
- *scm_loc_features);
-}
-
-
-\f
-
-SCM_DEFINE (scm_program_arguments, "program-arguments", 0, 0, 0,
- (),
-"")
-#define FUNC_NAME s_scm_program_arguments
-{
- return scm_progargs;
-}
-#undef FUNC_NAME
-
-/* Set the value returned by program-arguments, given ARGC and ARGV.
-
- If FIRST is non-zero, make it the first element; we do this in
- situations where other code (like getopt) has parsed out a few
- arguments, but we still want the script name to be the first
- element. */
-void
-scm_set_program_arguments (int argc, char **argv, char *first)
-{
- scm_progargs = scm_makfromstrs (argc, argv);
- if (first)
- scm_progargs = scm_cons (scm_makfrom0str (first), scm_progargs);
-}
-
-
-\f
-/* Hooks
- *
- * A hook is basically a list of procedures to be called at well defined
- * points in time.
- *
- * Hook name and arity are not full members of this type and therefore
- * lack accessors. They are added to aid debugging and are not
- * intended to be used in programs.
- *
- */
-
-long scm_tc16_hook;
-
-
-static SCM
-make_hook (SCM name, SCM n_args, const char *subr)
-{
- int n;
- SCM_ASSERT (SCM_FALSEP (name) || (SCM_SYMBOLP (name)),
- name,
- SCM_ARG1,
- subr);
- if (SCM_UNBNDP (n_args))
- n = 0;
- else
- {
- SCM_ASSERT (SCM_INUMP (n_args), n_args, SCM_ARGn, subr);
- n = SCM_INUM (n_args);
- }
- SCM_ASSERT (n >= 0 && n <= 16, n_args, SCM_OUTOFRANGE, subr);
- SCM_RETURN_NEWSMOB (scm_tc16_hook + (n << 16), SCM_LIST1 (name));
-}
-
-
-static int
-print_hook (SCM hook, SCM port, scm_print_state *pstate)
-{
- SCM ls, name;
- scm_puts ("#<hook ", port);
- if (SCM_NFALSEP (SCM_HOOK_NAME (hook)))
- {
- scm_iprin1 (SCM_HOOK_NAME (hook), port, pstate);
- scm_putc (' ', port);
- }
- scm_intprint (SCM_HOOK_ARITY (hook), 10, port);
- scm_putc (' ', port);
- scm_intprint ((int)hook, 16, port);
- ls = SCM_HOOK_PROCEDURES (hook);
- while (SCM_NIMP (ls))
- {
- scm_putc (' ', port);
- name = scm_procedure_name (SCM_CAR (ls));
- if (SCM_NFALSEP (name))
- scm_iprin1 (name, port, pstate);
- else
- scm_putc ('?', port);
- ls = SCM_CDR (ls);
- }
- scm_putc ('>', port);
- return 1;
-}
-
-
-SCM
-scm_create_hook (const char* name, int n_args)
-{
- SCM vcell = scm_sysintern0 (name);
- SCM hook = make_hook (SCM_CAR (vcell), SCM_MAKINUM (n_args),
- "scm_create_hook");
- SCM_SETCDR (vcell, hook);
- scm_protect_object (vcell);
- return hook;
-}
-
-
-/* This function is deprecated. It will be removed in next release. */
-SCM
-scm_make_named_hook (const char* name, int n_args)
-{
- return scm_create_hook (name, n_args);
-}
-
-
-SCM_DEFINE (scm_make_hook_with_name, "make-hook-with-name", 1, 1, 0,
- (SCM name, SCM n_args),
-"")
-#define FUNC_NAME s_scm_make_hook_with_name
-{
- return make_hook (name, n_args, FUNC_NAME);
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_make_hook, "make-hook", 0, 1, 0,
- (SCM n_args),
-"")
-#define FUNC_NAME s_scm_make_hook
-{
- return make_hook (SCM_BOOL_F, n_args, FUNC_NAME);
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_hook_p, "hook?", 1, 0, 0,
- (SCM x),
-"")
-#define FUNC_NAME s_scm_hook_p
-{
- return SCM_BOOL(SCM_HOOKP (x));
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_hook_empty_p, "hook-empty?", 1, 0, 0,
- (SCM hook),
-"")
-#define FUNC_NAME s_scm_hook_empty_p
-{
- SCM_VALIDATE_HOOK (1,hook);
- return SCM_BOOL(SCM_NULLP (SCM_HOOK_PROCEDURES (hook)));
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_add_hook_x, "add-hook!", 2, 1, 0,
- (SCM hook, SCM proc, SCM append_p),
-"")
-#define FUNC_NAME s_scm_add_hook_x
-{
- SCM arity, rest;
- int n_args;
- SCM_VALIDATE_HOOK (1,hook);
- SCM_ASSERT (SCM_NFALSEP (arity = scm_i_procedure_arity (proc)),
- proc, SCM_ARG2, FUNC_NAME);
- n_args = SCM_HOOK_ARITY (hook);
- if (SCM_INUM (SCM_CAR (arity)) > n_args
- || (SCM_FALSEP (SCM_CADDR (arity))
- && (SCM_INUM (SCM_CAR (arity)) + SCM_INUM (SCM_CADR (arity))
- < n_args)))
- scm_wrong_type_arg (FUNC_NAME, 2, proc);
- rest = scm_delq_x (proc, SCM_HOOK_PROCEDURES (hook));
- SCM_SET_HOOK_PROCEDURES (hook,
- (!SCM_UNBNDP (append_p) && SCM_NFALSEP (append_p)
- ? scm_append_x (SCM_LIST2 (rest, SCM_LIST1 (proc)))
- : scm_cons (proc, rest)));
- return SCM_UNSPECIFIED;
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_remove_hook_x, "remove-hook!", 2, 0, 0,
- (SCM hook, SCM proc),
-"")
-#define FUNC_NAME s_scm_remove_hook_x
-{
- SCM_VALIDATE_HOOK (1,hook);
- SCM_SET_HOOK_PROCEDURES (hook,
- scm_delq_x (proc, SCM_HOOK_PROCEDURES (hook)));
- return SCM_UNSPECIFIED;
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_reset_hook_x, "reset-hook!", 1, 0, 0,
- (SCM hook),
-"")
-#define FUNC_NAME s_scm_reset_hook_x
-{
- SCM_VALIDATE_HOOK (1,hook);
- SCM_SET_HOOK_PROCEDURES (hook, SCM_EOL);
- return SCM_UNSPECIFIED;
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_run_hook, "run-hook", 1, 0, 1,
- (SCM hook, SCM args),
-"")
-#define FUNC_NAME s_scm_run_hook
-{
- SCM_VALIDATE_HOOK (1,hook);
- if (SCM_UNBNDP (args))
- args = SCM_EOL;
- if (scm_ilength (args) != SCM_HOOK_ARITY (hook))
- SCM_MISC_ERROR ("Hook ~S requires ~A arguments",
- SCM_LIST2 (hook,SCM_MAKINUM (SCM_HOOK_ARITY (hook))));
- scm_c_run_hook (hook, args);
- return SCM_UNSPECIFIED;
-}
-#undef FUNC_NAME
-
-
-void
-scm_c_run_hook (SCM hook, SCM args)
-{
- SCM procs = SCM_HOOK_PROCEDURES (hook);
- while (SCM_NIMP (procs))
- {
- scm_apply (SCM_CAR (procs), args, SCM_EOL);
- procs = SCM_CDR (procs);
- }
-}
-
-
-SCM_DEFINE (scm_hook_to_list, "hook->list", 1, 0, 0,
- (SCM hook),
-"")
-#define FUNC_NAME s_scm_hook_to_list
-{
- SCM_VALIDATE_HOOK (1,hook);
- return scm_list_copy (SCM_HOOK_PROCEDURES (hook));
-}
-#undef FUNC_NAME
-
-
-\f
-
-void
-scm_init_feature()
-{
- scm_loc_features = SCM_CDRLOC (scm_sysintern ("*features*", SCM_EOL));
-#ifdef SCM_RECKLESS
- scm_add_feature("reckless");
-#endif
-#ifndef _Windows
- scm_add_feature("system");
-#endif
-#ifdef vms
- scm_add_feature(s_ed);
-#endif
-#ifdef SICP
- scm_add_feature("sicp");
-#endif
-#ifndef GO32
- scm_add_feature("char-ready?");
-#endif
-#ifndef CHEAP_CONTINUATIONS
- scm_add_feature ("full-continuation");
-#endif
-#ifdef USE_THREADS
- scm_add_feature ("threads");
-#endif
-
- scm_sysintern ("char-code-limit", SCM_MAKINUM (SCM_CHAR_CODE_LIMIT));
-
- scm_tc16_hook = scm_make_smob_type ("hook", 0);
- scm_set_smob_mark (scm_tc16_hook, scm_markcdr);
- scm_set_smob_print (scm_tc16_hook, print_hook);
-
-#include "feature.x"
-}
+/* Copyright (C) 1995,1996,1998,1999,2000,2001,2002, 2003, 2004, 2006 Free Software Foundation, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+
+\f
+#if HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
+
+#include "libguile/_scm.h"
+#include "libguile/root.h"
+#include "libguile/strings.h"
+#include "libguile/validate.h"
+#include "libguile/fluids.h"
+
+#include "libguile/feature.h"
+
+\f
+
+static SCM progargs_fluid;
+static SCM features_var;
+
+void
+scm_add_feature (const char *str)
+{
+ SCM old = SCM_VARIABLE_REF (features_var);
+ SCM new = scm_cons (scm_from_locale_symbol (str), old);
+ SCM_VARIABLE_SET (features_var, new);
+}
+
+\f
+
+SCM_DEFINE (scm_program_arguments, "program-arguments", 0, 0, 0,
+ (),
+ "@deffnx {Scheme Procedure} command-line\n"
+ "Return the list of command line arguments passed to Guile, as a list of\n"
+ "strings. The list includes the invoked program name, which is usually\n"
+ "@code{\"guile\"}, but excludes switches and parameters for command line\n"
+ "options like @code{-e} and @code{-l}.")
+#define FUNC_NAME s_scm_program_arguments
+{
+ return scm_fluid_ref (progargs_fluid);
+}
+#undef FUNC_NAME
+
+/* Set the value returned by program-arguments, given ARGC and ARGV.
+
+ If FIRST is non-zero, make it the first element; we do this in
+ situations where other code (like getopt) has parsed out a few
+ arguments, but we still want the script name to be the first
+ element. */
+void
+scm_set_program_arguments (int argc, char **argv, char *first)
+{
+ SCM args = scm_makfromstrs (argc, argv);
+ if (first)
+ args = scm_cons (scm_from_locale_string (first), args);
+ scm_fluid_set_x (progargs_fluid, args);
+}
+
+
+\f
+
+void
+scm_init_feature()
+{
+ progargs_fluid = scm_permanent_object (scm_make_fluid ());
+
+ features_var = scm_c_define ("*features*", SCM_EOL);
+#ifndef _Windows
+ scm_add_feature("system");
+#endif
+#ifdef vms
+ scm_add_feature(s_ed);
+#endif
+#ifdef SICP
+ scm_add_feature("sicp");
+#endif
+#ifndef GO32
+ scm_add_feature("char-ready?");
+#endif
+#ifndef CHEAP_CONTINUATIONS
+ scm_add_feature ("full-continuation");
+#endif
+#if SCM_USE_PTHREAD_THREADS
+ scm_add_feature ("threads");
+#endif
+
+ scm_c_define ("char-code-limit", scm_from_int (SCM_CHAR_CODE_LIMIT));
+
+#include "libguile/feature.x"
+}
+
+/*
+ Local Variables:
+ c-file-style: "gnu"
+ End:
+*/
HCoop / bpt / guile.git / blobdiff