forked from MacRuby/MacRuby
/
ruby.c
1663 lines (1487 loc) · 35.8 KB
/
ruby.c
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/**********************************************************************
ruby.c -
$Author: nobu $
created at: Tue Aug 10 12:47:31 JST 1993
Copyright (C) 1993-2007 Yukihiro Matsumoto
Copyright (C) 2000 Network Applied Communication Laboratory, Inc.
Copyright (C) 2000 Information-technology Promotion Agency, Japan
**********************************************************************/
#ifdef __CYGWIN__
#include <windows.h>
#include <sys/cygwin.h>
#endif
#ifdef _WIN32_WCE
#include <winsock.h>
#include "ruby/wince.h"
#endif
#include "ruby/ruby.h"
#include "ruby/node.h"
#include "ruby/encoding.h"
#include "eval_intern.h"
#include "dln.h"
#include <stdio.h>
#include <sys/types.h>
#include <ctype.h>
#ifdef __hpux
#include <sys/pstat.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#if defined(HAVE_FCNTL_H)
#include <fcntl.h>
#elif defined(HAVE_SYS_FCNTL_H)
#include <sys/fcntl.h>
#endif
#ifdef HAVE_SYS_PARAM_H
# include <sys/param.h>
#endif
#ifndef MAXPATHLEN
# define MAXPATHLEN 1024
#endif
#if defined(__MACOS__) && defined(__MWERKS__)
#include <console.h>
#endif
#include "ruby/util.h"
#ifndef HAVE_STDLIB_H
char *getenv();
#endif
/* TODO: move to VM */
VALUE ruby_debug = Qfalse;
VALUE ruby_verbose = Qfalse;
VALUE rb_parser_get_yydebug(VALUE);
VALUE rb_parser_set_yydebug(VALUE, VALUE);
const char *ruby_get_inplace_mode(void);
void ruby_set_inplace_mode(const char *);
#define DISABLE_BIT(bit) (1U << disable_##bit)
enum disable_flag_bits {
disable_gems,
disable_rubyopt,
};
#define DUMP_BIT(bit) (1U << dump_##bit)
enum dump_flag_bits {
dump_insns,
};
struct cmdline_options {
int sflag, xflag;
int do_loop, do_print;
int do_check, do_line;
int do_split, do_search;
int usage;
int version;
int copyright;
unsigned int disable;
int verbose;
int yydebug;
unsigned int dump;
const char *script;
VALUE script_name;
VALUE e_script;
struct {
struct {
VALUE name;
#if WITH_OBJC
rb_encoding *enc;
#else
int index;
#endif
} enc;
} src, ext;
};
struct cmdline_arguments {
int argc;
char **argv;
struct cmdline_options *opt;
};
static NODE *load_file(VALUE, const char *, int, struct cmdline_options *);
static void forbid_setid(const char *);
static struct {
int argc;
char **argv;
#if !defined(PSTAT_SETCMD) && !defined(HAVE_SETPROCTITLE)
int len;
#endif
} origarg;
static void
usage(const char *name)
{
/* This message really ought to be max 23 lines.
* Removed -h because the user already knows that option. Others? */
static const char *const usage_msg[] = {
"-0[octal] specify record separator (\\0, if no argument)",
"-a autosplit mode with -n or -p (splits $_ into $F)",
"-c check syntax only",
"-Cdirectory cd to directory, before executing your script",
"-d set debugging flags (set $DEBUG to true)",
"-e 'command' one line of script. Several -e's allowed. Omit [programfile]",
"-Eencoding specifies the character encoding for the program codes",
"-Fpattern split() pattern for autosplit (-a)",
"-i[extension] edit ARGV files in place (make backup if extension supplied)",
"-Idirectory specify $LOAD_PATH directory (may be used more than once)",
"-l enable line ending processing",
"-n assume 'while gets(); ... end' loop around your script",
"-p assume loop like -n but print line also like sed",
"-rlibrary require the library, before executing your script",
"-s enable some switch parsing for switches after script name",
"-S look for the script using PATH environment variable",
"-T[level] turn on tainting checks",
"-v print version number, then turn on verbose mode",
"-w turn warnings on for your script",
"-W[level] set warning level; 0=silence, 1=medium, 2=verbose (default)",
"-x[directory] strip off text before #!ruby line and perhaps cd to directory",
"--copyright print the copyright",
"--version print the version",
NULL
};
const char *const *p = usage_msg;
printf("Usage: %s [switches] [--] [programfile] [arguments]\n", name);
while (*p)
printf(" %s\n", *p++);
}
VALUE rb_get_load_path(void);
#ifndef CharNext /* defined as CharNext[AW] on Windows. */
#define CharNext(p) ((p) + mblen(p, RUBY_MBCHAR_MAXSIZE))
#endif
#if defined DOSISH || defined __CYGWIN__
static inline void
translate_char(char *p, int from, int to)
{
while (*p) {
if ((unsigned char)*p == from)
*p = to;
p = CharNext(p);
}
}
#endif
#if defined _WIN32 || defined __CYGWIN__ || defined __DJGPP__
static VALUE
rubylib_mangled_path(const char *s, unsigned int l)
{
static char *newp, *oldp;
static int newl, oldl, notfound;
char *ptr;
VALUE ret;
if (!newp && !notfound) {
newp = getenv("RUBYLIB_PREFIX");
if (newp) {
oldp = newp = strdup(newp);
while (*newp && !ISSPACE(*newp) && *newp != ';') {
newp = CharNext(newp); /* Skip digits. */
}
oldl = newp - oldp;
while (*newp && (ISSPACE(*newp) || *newp == ';')) {
newp = CharNext(newp); /* Skip whitespace. */
}
newl = strlen(newp);
if (newl == 0 || oldl == 0) {
rb_fatal("malformed RUBYLIB_PREFIX");
}
translate_char(newp, '\\', '/');
}
else {
notfound = 1;
}
}
if (!newp || l < oldl || STRNCASECMP(oldp, s, oldl) != 0) {
return rb_str_new(s, l);
}
ret = rb_str_new(0, l + newl - oldl);
ptr = RSTRING_BYTEPTR(ret); /* ok */
memcpy(ptr, newp, newl);
memcpy(ptr + newl, s + oldl, l - oldl);
ptr[l + newl - oldl] = 0;
RSTRING_SYNC(ret);
return ret;
}
static VALUE
rubylib_mangled_path2(const char *s)
{
return rubylib_mangled_path(s, strlen(s));
}
#else
#define rubylib_mangled_path rb_str_new
#define rubylib_mangled_path2 rb_str_new2
#endif
static void
push_include(const char *path, VALUE (*filter)(VALUE))
{
const char sep = PATH_SEP_CHAR;
const char *p, *s;
VALUE load_path = GET_VM()->load_path;
p = path;
while (*p) {
while (*p == sep)
p++;
if (!*p) break;
for (s = p; *s && *s != sep; s = CharNext(s));
rb_ary_push(load_path, (*filter)(rubylib_mangled_path(p, s - p)));
p = s;
}
}
#ifdef __CYGWIN__
static void
push_include_cygwin(const char *path, VALUE (*filter)(VALUE))
{
const char *p, *s;
char rubylib[FILENAME_MAX];
VALUE buf = 0;
p = path;
while (*p) {
unsigned int len;
while (*p == ';')
p++;
if (!*p) break;
for (s = p; *s && *s != ';'; s = CharNext(s));
len = s - p;
if (*s) {
if (!buf) {
buf = rb_str_new(p, len);
p = RSTRING_PTR(buf);
}
else {
rb_str_resize(buf, len);
p = strncpy(RSTRING_BYTEPTR(buf), p, len); /* ok */
RSTRING_SYNC(buf);
}
}
if (cygwin_conv_to_posix_path(p, rubylib) == 0)
p = rubylib;
push_include(p, filter);
if (!*s) break;
p = s + 1;
}
}
#define push_include push_include_cygwin
#endif
void
ruby_push_include(const char *path, VALUE (*filter)(VALUE))
{
if (path == 0)
return;
push_include(path, filter);
}
static VALUE
identical_path(VALUE path)
{
return path;
}
void
ruby_incpush(const char *path)
{
ruby_push_include(path, identical_path);
}
static VALUE
expand_include_path(VALUE path)
{
const char *p = RSTRING_PTR(path);
if (!p)
return path;
if (*p == '.' && p[1] == '/')
return path;
return rb_file_expand_path(path, Qnil);
}
void
ruby_incpush_expand(const char *path)
{
ruby_push_include(path, expand_include_path);
}
#if defined DOSISH || defined __CYGWIN__
#define LOAD_RELATIVE 1
#endif
#if defined _WIN32 || defined __CYGWIN__
static HMODULE libruby;
BOOL WINAPI
DllMain(HINSTANCE dll, DWORD reason, LPVOID reserved)
{
if (reason == DLL_PROCESS_ATTACH)
libruby = dll;
return TRUE;
}
#endif
void
ruby_init_loadpath(void)
{
VALUE load_path;
#if defined LOAD_RELATIVE
char libpath[MAXPATHLEN + 1];
char *p;
int rest;
#if defined _WIN32 || defined __CYGWIN__
GetModuleFileName(libruby, libpath, sizeof libpath);
#elif defined(DJGPP)
extern char *__dos_argv0;
strncpy(libpath, __dos_argv0, sizeof(libpath) - 1);
#elif defined(__human68k__)
extern char **_argv;
strncpy(libpath, _argv[0], sizeof(libpath) - 1);
#elif defined(__EMX__)
_execname(libpath, sizeof(libpath) - 1);
#endif
libpath[sizeof(libpath) - 1] = '\0';
#if defined DOSISH
translate_char(libpath, '\\', '/');
#elif defined __CYGWIN__
{
char rubylib[FILENAME_MAX];
cygwin_conv_to_posix_path(libpath, rubylib);
strncpy(libpath, rubylib, sizeof(libpath));
}
#endif
p = strrchr(libpath, '/');
if (p) {
*p = 0;
if (p - libpath > 3 && !STRCASECMP(p - 4, "/bin")) {
p -= 4;
*p = 0;
}
}
else {
strcpy(libpath, ".");
p = libpath + 1;
}
rest = sizeof(libpath) - 1 - (p - libpath);
#define RUBY_RELATIVE(path) (strncpy(p, (path), rest), libpath)
#else
#define RUBY_RELATIVE(path) (path)
#endif
#define incpush(path) rb_ary_push(load_path, rubylib_mangled_path2(path))
load_path = GET_VM()->load_path;
if (rb_safe_level() == 0) {
ruby_incpush(getenv("RUBYLIB"));
}
#ifdef RUBY_SEARCH_PATH
incpush(RUBY_RELATIVE(RUBY_SEARCH_PATH));
#endif
incpush(RUBY_RELATIVE(RUBY_SITE_LIB2));
#ifdef RUBY_SITE_THIN_ARCHLIB
incpush(RUBY_RELATIVE(RUBY_SITE_THIN_ARCHLIB));
#endif
incpush(RUBY_RELATIVE(RUBY_SITE_ARCHLIB));
incpush(RUBY_RELATIVE(RUBY_SITE_LIB));
incpush(RUBY_RELATIVE(RUBY_VENDOR_LIB2));
#ifdef RUBY_VENDOR_THIN_ARCHLIB
incpush(RUBY_RELATIVE(RUBY_VENDOR_THIN_ARCHLIB));
#endif
incpush(RUBY_RELATIVE(RUBY_VENDOR_ARCHLIB));
incpush(RUBY_RELATIVE(RUBY_VENDOR_LIB));
incpush(RUBY_RELATIVE(RUBY_LIB));
#ifdef RUBY_THIN_ARCHLIB
incpush(RUBY_RELATIVE(RUBY_THIN_ARCHLIB));
#endif
incpush(RUBY_RELATIVE(RUBY_ARCHLIB));
if (rb_safe_level() == 0) {
incpush(".");
}
}
struct req_list {
char *name;
struct req_list *next;
};
static struct {
struct req_list *last, head;
} req_list = {&req_list.head,};
static void
add_modules(const char *mod)
{
struct req_list *list;
list = ALLOC(struct req_list);
list->name = ALLOC_N(char, strlen(mod) + 1);
strcpy(list->name, mod);
list->next = 0;
req_list.last->next = list;
req_list.last = list;
}
extern void Init_ext(void);
extern VALUE rb_vm_top_self(void);
static void
require_libraries(void)
{
struct req_list *list = req_list.head.next;
struct req_list *tmp;
ID require = rb_intern("require");
Init_ext(); /* should be called here for some reason :-( */
req_list.last = 0;
while (list) {
VALUE feature = rb_str_new2(list->name);
tmp = list->next;
xfree(list->name);
xfree(list);
list = tmp;
rb_funcall2(rb_vm_top_self(), require, 1, &feature);
}
req_list.head.next = 0;
}
static void
process_sflag(struct cmdline_options *opt)
{
if (opt->sflag) {
long i, n;
VALUE argv = rb_argv;
n = RARRAY_LEN(argv);
i = 0;
while (n > 0) {
VALUE v = RARRAY_AT(argv, i++);
char *s = StringValuePtr(v);
char *p;
int hyphen = Qfalse;
if (s[0] != '-')
break;
n--;
if (s[1] == '-' && s[2] == '\0')
break;
v = Qtrue;
/* check if valid name before replacing - with _ */
for (p = s + 1; *p; p++) {
if (*p == '=') {
*p++ = '\0';
v = rb_str_new2(p);
break;
}
if (*p == '-') {
hyphen = Qtrue;
}
else if (*p != '_' && !ISALNUM(*p)) {
VALUE name_error[2];
name_error[0] =
rb_str_new2("invalid name for global variable - ");
if (!(p = strchr(p, '='))) {
rb_str_cat2(name_error[0], s);
}
else {
rb_str_cat(name_error[0], s, p - s);
}
name_error[1] = RARRAY_AT(argv, -1);
rb_exc_raise(rb_class_new_instance(2, name_error, rb_eNameError));
}
}
s[0] = '$';
if (hyphen) {
for (p = s + 1; *p; ++p) {
if (*p == '-')
*p = '_';
}
}
rb_gv_set(s, v);
}
n = RARRAY_LEN(argv) - n;
while (n--) {
rb_ary_shift(argv);
}
}
opt->sflag = 0;
}
NODE *rb_parser_append_print(VALUE, NODE *);
NODE *rb_parser_while_loop(VALUE, NODE *, int, int);
static int proc_options(int argc, char **argv, struct cmdline_options *opt);
static char *
moreswitches(const char *s, struct cmdline_options *opt)
{
int argc;
char *argv[3];
const char *p = s;
argc = 2;
argv[0] = argv[2] = 0;
while (*s && !ISSPACE(*s))
s++;
argv[1] = ALLOCA_N(char, s - p + 2);
argv[1][0] = '-';
strncpy(argv[1] + 1, p, s - p);
argv[1][s - p + 1] = '\0';
proc_options(argc, argv, opt);
while (*s && ISSPACE(*s))
s++;
return (char *)s;
}
#define NAME_MATCH_P(name, str, len) \
((len) < sizeof(name) && strncmp((str), name, (len)) == 0)
#define UNSET_WHEN(name, bit, str, len) \
if (NAME_MATCH_P(name, str, len)) { \
*(unsigned int *)arg &= ~(bit); \
return; \
}
#define SET_WHEN(name, bit, str, len) \
if (NAME_MATCH_P(name, str, len)) { \
*(unsigned int *)arg |= (bit); \
return; \
}
static void
enable_option(const char *str, int len, void *arg)
{
#define UNSET_WHEN_DISABLE(bit) UNSET_WHEN(#bit, DISABLE_BIT(bit), str, len)
UNSET_WHEN_DISABLE(gems);
UNSET_WHEN_DISABLE(rubyopt);
if (NAME_MATCH_P("all", str, len)) {
*(unsigned int *)arg = 0U;
return;
}
rb_warn("unknown argument for --enable: `%.*s'", len, str);
}
static void
disable_option(const char *str, int len, void *arg)
{
#define SET_WHEN_DISABLE(bit) SET_WHEN(#bit, DISABLE_BIT(bit), str, len)
SET_WHEN_DISABLE(gems);
SET_WHEN_DISABLE(rubyopt);
if (NAME_MATCH_P("all", str, len)) {
*(unsigned int *)arg = ~0U;
return;
}
rb_warn("unknown argument for --disable: `%.*s'", len, str);
}
static void
dump_option(const char *str, int len, void *arg)
{
#define SET_WHEN_DUMP(bit) SET_WHEN(#bit, DUMP_BIT(bit), str, len)
SET_WHEN_DUMP(insns);
rb_warn("don't know how to dump `%.*s', (insns)", len, str);
}
static int
proc_options(int argc, char **argv, struct cmdline_options *opt)
{
int n, argc0 = argc;
const char *s;
if (argc == 0)
return 0;
for (argc--, argv++; argc > 0; argc--, argv++) {
if (argv[0][0] != '-' || !argv[0][1])
break;
s = argv[0] + 1;
reswitch:
switch (*s) {
case 'a':
opt->do_split = Qtrue;
s++;
goto reswitch;
case 'p':
opt->do_print = Qtrue;
/* through */
case 'n':
opt->do_loop = Qtrue;
s++;
goto reswitch;
case 'd':
ruby_debug = Qtrue;
ruby_verbose = Qtrue;
s++;
goto reswitch;
case 'y':
opt->yydebug = 1;
s++;
goto reswitch;
case 'v':
if (opt->verbose) {
s++;
goto reswitch;
}
ruby_show_version();
opt->verbose = 1;
case 'w':
ruby_verbose = Qtrue;
s++;
goto reswitch;
case 'W':
{
int numlen;
int v = 2; /* -W as -W2 */
if (*++s) {
v = scan_oct(s, 1, &numlen);
if (numlen == 0)
v = 1;
s += numlen;
}
switch (v) {
case 0:
ruby_verbose = Qnil;
break;
case 1:
ruby_verbose = Qfalse;
break;
default:
ruby_verbose = Qtrue;
break;
}
}
goto reswitch;
case 'c':
opt->do_check = Qtrue;
s++;
goto reswitch;
case 's':
forbid_setid("-s");
opt->sflag = 1;
s++;
goto reswitch;
case 'h':
usage(origarg.argv[0]);
rb_exit(EXIT_SUCCESS);
break;
case 'l':
opt->do_line = Qtrue;
rb_output_rs = rb_rs;
s++;
goto reswitch;
case 'S':
forbid_setid("-S");
opt->do_search = Qtrue;
s++;
goto reswitch;
case 'e':
forbid_setid("-e");
if (!*++s) {
s = argv[1];
argc--, argv++;
}
if (!s) {
rb_raise(rb_eRuntimeError, "no code specified for -e");
}
if (!opt->e_script) {
opt->e_script = rb_str_new(0, 0);
if (opt->script == 0)
opt->script = "-e";
}
rb_str_cat2(opt->e_script, s);
rb_str_cat2(opt->e_script, "\n");
break;
case 'r':
forbid_setid("-r");
if (*++s) {
add_modules(s);
}
else if (argv[1]) {
add_modules(argv[1]);
argc--, argv++;
}
break;
case 'i':
forbid_setid("-i");
ruby_set_inplace_mode(s + 1);
break;
case 'x':
opt->xflag = Qtrue;
s++;
if (*s && chdir(s) < 0) {
rb_fatal("Can't chdir to %s", s);
}
break;
case 'C':
case 'X':
s++;
if (!*s) {
s = argv[1];
argc--, argv++;
}
if (!s || !*s) {
rb_fatal("Can't chdir");
}
if (chdir(s) < 0) {
rb_fatal("Can't chdir to %s", s);
}
break;
case 'F':
if (*++s) {
rb_fs = rb_reg_new(s, strlen(s), 0);
}
break;
case 'E':
if (!*++s) goto next_encoding;
goto encoding;
case 'K':
if (*++s) {
const char *enc_name = 0;
switch (*s) {
case 'E': case 'e':
enc_name = "EUC-JP";
break;
case 'S': case 's':
enc_name = "Windows-31J";
break;
case 'U': case 'u':
enc_name = "UTF-8";
break;
case 'N': case 'n': case 'A': case 'a':
enc_name = "ASCII-8BIT";
break;
}
if (enc_name) {
opt->src.enc.name = rb_str_new2(enc_name);
opt->ext.enc.name = opt->src.enc.name;
}
s++;
}
goto reswitch;
case 'T':
{
int numlen;
int v = 1;
if (*++s) {
v = scan_oct(s, 2, &numlen);
if (numlen == 0)
v = 1;
s += numlen;
}
rb_set_safe_level(v);
}
goto reswitch;
case 'I':
forbid_setid("-I");
if (*++s)
ruby_incpush_expand(s);
else if (argv[1]) {
ruby_incpush_expand(argv[1]);
argc--, argv++;
}
break;
case '0':
{
int numlen;
int v;
char c;
v = scan_oct(s, 4, &numlen);
s += numlen;
if (v > 0377)
rb_rs = Qnil;
else if (v == 0 && numlen >= 2) {
rb_rs = rb_str_new2("\n\n");
}
else {
c = v & 0xff;
rb_rs = rb_str_new(&c, 1);
}
}
goto reswitch;
case '-':
if (!s[1] || (s[1] == '\r' && !s[2])) {
argc--, argv++;
goto switch_end;
}
s++;
if (strcmp("copyright", s) == 0)
opt->copyright = 1;
else if (strcmp("debug", s) == 0) {
ruby_debug = Qtrue;
ruby_verbose = Qtrue;
}
else if (strncmp("enable", s, n = 6) == 0 &&
(!s[n] || s[n] == '-' || s[n] == '=')) {
if ((s += n + 1)[-1] ? !*s : (!--argc || !(s = *++argv))) {
rb_raise(rb_eRuntimeError, "missing argument for --enable");
}
ruby_each_words(s, enable_option, &opt->disable);
}
else if (strncmp("disable", s, n = 7) == 0 &&
(!s[n] || s[n] == '-' || s[n] == '=')) {
if ((s += n + 1)[-1] ? !*s : (!--argc || !(s = *++argv))) {
rb_raise(rb_eRuntimeError, "missing argument for --disable");
}
ruby_each_words(s, disable_option, &opt->disable);
}
else if (strncmp("encoding", s, n = 8) == 0 && (!s[n] || s[n] == '=')) {
s += n;
if (!*s++) {
next_encoding:
if (!--argc || !(s = *++argv)) {
rb_raise(rb_eRuntimeError, "missing argument for --encoding");
}
}
encoding:
opt->ext.enc.name = rb_str_new2(s);
}
else if (strcmp("version", s) == 0)
opt->version = 1;
else if (strcmp("verbose", s) == 0) {
opt->verbose = 1;
ruby_verbose = Qtrue;
}
else if (strcmp("yydebug", s) == 0)
opt->yydebug = 1;
else if (strncmp("dump", s, n = 4) == 0 && (!s[n] || s[n] == '=')) {
if (!(s += n + 1)[-1] && (!--argc || !(s = *++argv)) && *s != '-') break;
ruby_each_words(s, dump_option, &opt->dump);
}
else if (strcmp("help", s) == 0) {
usage(origarg.argv[0]);
rb_exit(EXIT_SUCCESS);
}
else {
rb_raise(rb_eRuntimeError,
"invalid option --%s (-h will show valid options)", s);
}
break;
case '\r':
if (!s[1])
break;
default:
{
if (ISPRINT(*s)) {
rb_raise(rb_eRuntimeError,
"invalid option -%c (-h will show valid options)",
(int)(unsigned char)*s);
}
else {
rb_raise(rb_eRuntimeError,
"invalid option -\\x%02X (-h will show valid options)",
(int)(unsigned char)*s);
}
}
goto switch_end;
case 0:
break;
}
}
switch_end:
return argc0 - argc;
}
void Init_prelude(void);
static void
ruby_init_gems(int enable)
{
if (enable) rb_define_module("Gem");
Init_prelude();
}
#if WITH_OBJC
static rb_encoding *
opt_enc_find(VALUE enc_name)
{
rb_encoding *enc = rb_enc_find2(enc_name);
if (enc == NULL)
rb_raise(rb_eRuntimeError, "unknown encoding name - %s",
RSTRING_PTR(enc_name));
return enc;
}
#else
static int
opt_enc_index(VALUE enc_name)
{
const char *s = RSTRING_PTR(enc_name);
int i = rb_enc_find_index(s);
if (i < 0) {
rb_raise(rb_eRuntimeError, "unknown encoding name - %s", s);
}
else if (rb_enc_dummy_p(rb_enc_from_index(i))) {
rb_raise(rb_eRuntimeError, "dummy encoding is not acceptable - %s ", s);
}
return i;
}
#endif
VALUE rb_progname;
VALUE rb_argv0;
#if WITH_OBJC
static rb_encoding *src_encoding;
#else
static int src_encoding_index = -1; /* TODO: VM private */
#endif
static VALUE
process_options(VALUE arg)
{
struct cmdline_arguments *argp = (struct cmdline_arguments *)arg;
struct cmdline_options *opt = argp->opt;
int argc = argp->argc;
char **argv = argp->argv;
NODE *tree = 0;
VALUE parser;
VALUE iseq;
rb_encoding *enc, *lenc;
const char *s;
char fbuf[MAXPATHLEN];
int i = proc_options(argc, argv, opt);
int safe;
argc -= i;
argv += i;