-/* Copyright (C) 1994, 1995, 1996, 1997, 1998, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
+/* Copyright (C) 1994-1998, 2000-2011, 2013, 2014 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.
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 3 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
+ * 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
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301 USA
*/
/* "script.c" argv tricks for `#!' scripts.
# include <config.h>
#endif
+#include <localcharset.h>
+#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <ctype.h>
+#include <uniconv.h>
#include "libguile/_scm.h"
#include "libguile/eval.h"
#include "libguile/strports.h"
#include "libguile/validate.h"
#include "libguile/version.h"
+#include "libguile/vm.h"
#ifdef HAVE_STRING_H
#include <string.h>
#endif
-#ifdef HAVE_UNISTD_H
#include <unistd.h> /* for X_OK define */
-#endif
#ifdef HAVE_IO_H
#include <io.h>
}
#undef FUNC_NAME
+/*
+ * Like `realloc', but free memory on failure;
+ * unlike `scm_realloc', return NULL, not aborts.
+*/
+static void*
+realloc0 (void *ptr, size_t size)
+{
+ void *new_ptr = realloc (ptr, size);
+ if (!new_ptr)
+ {
+ free (ptr);
+ }
+ return new_ptr;
+}
+
static char *
script_read_arg (FILE *f)
if (len >= size)
{
size = (size + 1) * 2;
- buf = realloc (buf, size);
+ buf = realloc0 (buf, size);
if (! buf)
return 0;
}
switch (getc (f))
{
case EOF:
+ free (nargv);
return 0L;
default:
continue;
goto found_args;
}
found_args:
+ /* FIXME: we leak the result of calling script_read_arg. */
while ((narg = script_read_arg (f)))
- if (!(nargv = (char **) realloc (nargv,
+ if (!(nargv = (char **) realloc0 (nargv,
(1 + ++nargc) * sizeof (char *))))
- return 0L;
+ return 0L;
else
nargv[nargi++] = narg;
fclose (f);
void
scm_shell_usage (int fatal, char *message)
{
- FILE *fp = (fatal ? stderr : stdout);
-
- if (message)
- fprintf (fp, "%s\n", message);
-
- fprintf (fp,
- "Usage: %s OPTION ...\n"
- "Evaluate Scheme code, interactively or from a script.\n"
- "\n"
- " [-s] FILE load Scheme source code from FILE, and exit\n"
- " -c EXPR evalute Scheme expression EXPR, and exit\n"
- " -- stop scanning arguments; run interactively\n"
- "The above switches stop argument processing, and pass all\n"
- "remaining arguments as the value of (command-line).\n"
- "If FILE begins with `-' the -s switch is mandatory.\n"
- "\n"
- " -L DIRECTORY add DIRECTORY to the front of the module load path\n"
- " -l FILE load Scheme source code from FILE\n"
- " -e FUNCTION after reading script, apply FUNCTION to\n"
- " command line arguments\n"
- " -ds do -s script at this point\n"
- " --debug start with debugging evaluator and backtraces\n"
- " --no-debug start with normal evaluator\n"
- " Default is to enable debugging for interactive\n"
- " use, but not for `-s' and `-c'.\n"
- " -q inhibit loading of user init file\n"
- " --emacs enable Emacs protocol (experimental)\n"
- " --use-srfi=LS load SRFI modules for the SRFIs in LS,\n"
- " which is a list of numbers like \"2,13,14\"\n"
- " -h, --help display this help and exit\n"
- " -v, --version display version information and exit\n"
- " \\ read arguments from following script lines\n"
- "\n"
- "Please report bugs to bug-guile@gnu.org\n",
- scm_usage_name);
-
- if (fatal)
- exit (fatal);
+ scm_call_3 (scm_c_private_ref ("ice-9 command-line",
+ "shell-usage"),
+ (scm_usage_name
+ ? scm_from_locale_string (scm_usage_name)
+ : scm_from_latin1_string ("guile")),
+ scm_from_bool (fatal),
+ (message
+ ? scm_from_locale_string (message)
+ : SCM_BOOL_F));
}
+/* Return a list of strings from ARGV, which contains ARGC strings
+ assumed to be encoded in the current locale. Use
+ `environ_locale_charset' instead of relying on
+ `scm_from_locale_string' because the user hasn't had a change to call
+ (setlocale LC_ALL "") yet.
+
+ XXX: This hack is for 2.0 and will be removed in the next stable
+ series where the `setlocale' call will be implicit. See
+ <http://lists.gnu.org/archive/html/guile-devel/2011-11/msg00040.html>
+ for details. */
+static SCM
+locale_arguments_to_string_list (int argc, char **const argv)
+{
+ int i;
+ SCM lst;
+ const char *encoding;
+
+ encoding = environ_locale_charset ();
+ for (i = argc - 1, lst = SCM_EOL;
+ i >= 0;
+ i--)
+ lst = scm_cons (scm_from_stringn (argv[i], (size_t) -1, encoding,
+ SCM_FAILED_CONVERSION_ESCAPE_SEQUENCE),
+ lst);
+
+ return lst;
+}
-/* Some symbols used by the command-line compiler. */
-SCM_SYMBOL (sym_load, "load");
-SCM_SYMBOL (sym_eval_string, "eval-string");
-SCM_SYMBOL (sym_command_line, "command-line");
-SCM_SYMBOL (sym_begin, "begin");
-SCM_SYMBOL (sym_turn_on_debugging, "turn-on-debugging");
-SCM_SYMBOL (sym_load_user_init, "load-user-init");
-SCM_SYMBOL (sym_top_repl, "top-repl");
-SCM_SYMBOL (sym_quit, "quit");
-SCM_SYMBOL (sym_use_srfis, "use-srfis");
-SCM_SYMBOL (sym_load_path, "%load-path");
-SCM_SYMBOL (sym_set_x, "set!");
-SCM_SYMBOL (sym_cons, "cons");
-SCM_SYMBOL (sym_at, "@");
-SCM_SYMBOL (sym_atat, "@@");
-SCM_SYMBOL (sym_main, "main");
+/* Set the value returned by `program-arguments', given ARGC and ARGV. */
+void
+scm_i_set_boot_program_arguments (int argc, char *argv[])
+{
+ scm_fluid_set_x (scm_program_arguments_fluid,
+ locale_arguments_to_string_list (argc, argv));
+}
/* Given an array of command-line switches, return a Scheme expression
to carry out the actions specified by the switches.
-
- If you told me this should have been written in Scheme, I'd
- probably agree. I'd say I didn't feel comfortable doing that in
- the present system. You'd say, well, fix the system so you are
- comfortable doing that. I'd agree again. *shrug*
*/
-static char guile[] = "guile";
-
-static int
-all_symbols (SCM list)
-{
- while (scm_is_pair (list))
- {
- if (!scm_is_symbol (SCM_CAR (list)))
- return 0;
- list = SCM_CDR (list);
- }
- return 1;
-}
-
SCM
scm_compile_shell_switches (int argc, char **argv)
{
- SCM tail = SCM_EOL; /* We accumulate the list backwards,
- and then reverse! it before we
- return it. */
- SCM do_script = SCM_EOL; /* The element of the list containing
- the "load" command, in case we get
- the "-ds" switch. */
- SCM entry_point = SCM_EOL; /* for -e switch */
- SCM user_load_path = SCM_EOL; /* for -L switch */
- int interactive = 1; /* Should we go interactive when done? */
- int inhibit_user_init = 0; /* Don't load user init file */
- int use_emacs_interface = 0;
- int turn_on_debugging = 0;
- int dont_turn_on_debugging = 0;
-
- int i;
- char *argv0 = guile;
-
- if (argc > 0)
- {
- argv0 = argv[0];
- scm_usage_name = strrchr (argv[0], '/');
- if (! scm_usage_name)
- scm_usage_name = argv[0];
- else
- scm_usage_name++;
- }
- if (! scm_usage_name)
- scm_usage_name = guile;
-
- for (i = 1; i < argc; i++)
- {
- if ((! strcmp (argv[i], "-s")) || (argv[i][0] != '-')) /* load script */
- {
- if ((argv[i][0] == '-') && (++i >= argc))
- scm_shell_usage (1, "missing argument to `-s' switch");
-
- /* If we specified the -ds option, do_script points to the
- cdr of an expression like (load #f); we replace the car
- (i.e., the #f) with the script name. */
- if (!scm_is_null (do_script))
- {
- SCM_SETCAR (do_script, scm_from_locale_string (argv[i]));
- do_script = SCM_EOL;
- }
- else
- /* Construct an application of LOAD to the script name. */
- tail = scm_cons (scm_cons2 (sym_load,
- scm_from_locale_string (argv[i]),
- SCM_EOL),
- tail);
- argv0 = argv[i];
- i++;
- interactive = 0;
- break;
- }
-
- else if (! strcmp (argv[i], "-c")) /* evaluate expr */
- {
- if (++i >= argc)
- scm_shell_usage (1, "missing argument to `-c' switch");
- tail = scm_cons (scm_cons2 (sym_eval_string,
- scm_from_locale_string (argv[i]),
- SCM_EOL),
- tail);
- i++;
- interactive = 0;
- break;
- }
-
- else if (! strcmp (argv[i], "--")) /* end args; go interactive */
- {
- i++;
- break;
- }
-
- else if (! strcmp (argv[i], "-l")) /* load a file */
- {
- if (++i < argc)
- tail = scm_cons (scm_cons2 (sym_load,
- scm_from_locale_string (argv[i]),
- SCM_EOL),
- tail);
- else
- scm_shell_usage (1, "missing argument to `-l' switch");
- }
-
- else if (! strcmp (argv[i], "-L")) /* add to %load-path */
- {
- if (++i < argc)
- user_load_path =
- scm_cons (scm_list_3 (sym_set_x,
- sym_load_path,
- scm_list_3 (sym_cons,
- scm_from_locale_string (argv[i]),
- sym_load_path)),
- user_load_path);
- else
- scm_shell_usage (1, "missing argument to `-L' switch");
- }
-
- else if (! strcmp (argv[i], "-e")) /* entry point */
- {
- if (++i < argc)
- {
- SCM port
- = scm_open_input_string (scm_from_locale_string (argv[i]));
- SCM arg1 = scm_read (port);
- SCM arg2 = scm_read (port);
-
- /* Recognize syntax of certain versions of Guile 1.4 and
- transform to (@ MODULE-NAME FUNC).
- */
- if (scm_is_false (scm_eof_object_p (arg2)))
- entry_point = scm_list_3 (sym_at, arg1, arg2);
- else if (scm_is_pair (arg1)
- && !(scm_is_eq (SCM_CAR (arg1), sym_at)
- || scm_is_eq (SCM_CAR (arg1), sym_atat))
- && all_symbols (arg1))
- entry_point = scm_list_3 (sym_at, arg1, sym_main);
- else
- entry_point = arg1;
- }
- else
- scm_shell_usage (1, "missing argument to `-e' switch");
- }
-
- else if (! strcmp (argv[i], "-ds")) /* do script here */
- {
- /* We put a dummy "load" expression, and let the -s put the
- filename in. */
- if (!scm_is_null (do_script))
- scm_shell_usage (1, "the -ds switch may only be specified once");
- do_script = scm_cons (SCM_BOOL_F, SCM_EOL);
- tail = scm_cons (scm_cons (sym_load, do_script),
- tail);
- }
-
- else if (! strcmp (argv[i], "--debug"))
- {
- turn_on_debugging = 1;
- dont_turn_on_debugging = 0;
- }
-
- else if (! strcmp (argv[i], "--no-debug"))
- {
- dont_turn_on_debugging = 1;
- turn_on_debugging = 0;
- }
-
- else if (! strcmp (argv[i], "--emacs")) /* use emacs protocol */
- use_emacs_interface = 1;
-
- else if (! strcmp (argv[i], "-q")) /* don't load user init */
- inhibit_user_init = 1;
-
- else if (! strncmp (argv[i], "--use-srfi=", 11)) /* load SRFIs */
- {
- SCM srfis = SCM_EOL; /* List of requested SRFIs. */
- char * p = argv[i] + 11;
- while (*p)
- {
- long num;
- char * end;
-
- num = strtol (p, &end, 10);
- if (end - p > 0)
- {
- srfis = scm_cons (scm_from_long (num), srfis);
- if (*end)
- {
- if (*end == ',')
- p = end + 1;
- else
- scm_shell_usage (1, "invalid SRFI specification");
- }
- else
- break;
- }
- else
- scm_shell_usage (1, "invalid SRFI specification");
- }
- if (scm_ilength (srfis) <= 0)
- scm_shell_usage (1, "invalid SRFI specification");
- srfis = scm_reverse_x (srfis, SCM_UNDEFINED);
- tail = scm_cons (scm_list_2 (sym_use_srfis,
- scm_list_2 (scm_sym_quote, srfis)),
- tail);
- }
-
- else if (! strcmp (argv[i], "-h")
- || ! strcmp (argv[i], "--help"))
- {
- scm_shell_usage (0, 0);
- exit (0);
- }
-
- else if (! strcmp (argv[i], "-v")
- || ! strcmp (argv[i], "--version"))
- {
- /* Print version number. */
- printf ("Guile %s\n"
- "Copyright (c) 1995, 1996, 1997, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation\n"
- "Guile may be distributed under the terms of the GNU General Public Licence;\n"
- "certain other uses are permitted as well. For details, see the file\n"
- "`COPYING', which is included in the Guile distribution.\n"
- "There is no warranty, to the extent permitted by law.\n",
- scm_to_locale_string (scm_version ()));
- exit (0);
- }
-
- else
- {
- fprintf (stderr, "%s: Unrecognized switch `%s'\n",
- scm_usage_name, argv[i]);
- scm_shell_usage (1, 0);
- }
- }
-
- /* Check to make sure the -ds got a -s. */
- if (!scm_is_null (do_script))
- scm_shell_usage (1, "the `-ds' switch requires the use of `-s' as well");
-
- /* Make any remaining arguments available to the
- script/command/whatever. */
- scm_set_program_arguments (argc ? argc - i : 0, argv + i, argv0);
-
- /* If the --emacs switch was set, now is when we process it. */
- scm_c_define ("use-emacs-interface", scm_from_bool (use_emacs_interface));
-
- /* Handle the `-e' switch, if it was specified. */
- if (!scm_is_null (entry_point))
- tail = scm_cons (scm_cons2 (entry_point,
- scm_cons (sym_command_line, SCM_EOL),
- SCM_EOL),
- tail);
-
- /* If we didn't end with a -c or a -s, start the repl. */
- if (interactive)
- {
- tail = scm_cons (scm_cons (sym_top_repl, SCM_EOL), tail);
- }
- else
- {
- /* After doing all the other actions prescribed by the command line,
- quit. */
- tail = scm_cons (scm_cons (sym_quit, SCM_EOL),
- tail);
- }
-
- /* After the following line, actions will be added to the front. */
- tail = scm_reverse_x (tail, SCM_UNDEFINED);
-
- /* add the user-specified load path here, so it won't be in effect
- during the loading of the user's customization file. */
- if(!scm_is_null(user_load_path))
- {
- tail = scm_append_x( scm_cons2(user_load_path, tail, SCM_EOL) );
- }
-
- /* If we didn't end with a -c or a -s and didn't supply a -q, load
- the user's customization file. */
- if (interactive && !inhibit_user_init)
- {
- tail = scm_cons (scm_cons (sym_load_user_init, SCM_EOL), tail);
- }
-
- /* If debugging was requested, or we are interactive and debugging
- was not explicitly turned off, turn on debugging. */
- if (turn_on_debugging || (interactive && !dont_turn_on_debugging))
- {
- tail = scm_cons (scm_cons (sym_turn_on_debugging, SCM_EOL), tail);
- }
-
- {
- SCM val = scm_cons (sym_begin, tail);
-
-#if 0
- scm_write (val, SCM_UNDEFINED);
- scm_newline (SCM_UNDEFINED);
-#endif
-
- return val;
- }
+ return scm_call_2 (scm_c_public_ref ("ice-9 command-line",
+ "compile-shell-switches"),
+ locale_arguments_to_string_list (argc, argv),
+ (scm_usage_name
+ ? scm_from_locale_string (scm_usage_name)
+ : scm_from_latin1_string ("guile")));
}
HCoop / bpt / guile.git / blobdiff