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ruby.c
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/**********************************************************************
ruby.c -
$Author$
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
#include "ruby/encoding.h"
#include "ruby/thread.h"
#include "ruby/version.h"
#include "internal.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
#if defined(LOAD_RELATIVE) && defined(HAVE_DLADDR)
#include <dlfcn.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
#ifndef O_ACCMODE
# define O_ACCMODE (O_RDONLY | O_WRONLY | O_RDWR)
#endif
#include "ruby/util.h"
#include "mjit.h"
void Init_ruby_description(void);
#ifndef HAVE_STDLIB_H
char *getenv();
#endif
#ifndef DISABLE_RUBYGEMS
# define DISABLE_RUBYGEMS 0
#endif
#if DISABLE_RUBYGEMS
#define DEFAULT_RUBYGEMS_ENABLED "disabled"
#else
#define DEFAULT_RUBYGEMS_ENABLED "enabled"
#endif
void rb_warning_category_update(unsigned int mask, unsigned int bits);
#define COMMA ,
#define FEATURE_BIT(bit) (1U << feature_##bit)
#define EACH_FEATURES(X, SEP) \
X(gems) \
SEP \
X(did_you_mean) \
SEP \
X(rubyopt) \
SEP \
X(frozen_string_literal) \
SEP \
X(jit) \
/* END OF FEATURES */
#define EACH_DEBUG_FEATURES(X, SEP) \
X(frozen_string_literal) \
/* END OF DEBUG FEATURES */
#define AMBIGUOUS_FEATURE_NAMES 0 /* no ambiguous feature names now */
#define DEFINE_FEATURE(bit) feature_##bit
#define DEFINE_DEBUG_FEATURE(bit) feature_debug_##bit
enum feature_flag_bits {
EACH_FEATURES(DEFINE_FEATURE, COMMA),
feature_debug_flag_first,
feature_debug_flag_begin = feature_debug_flag_first - 1,
EACH_DEBUG_FEATURES(DEFINE_DEBUG_FEATURE, COMMA),
feature_flag_count
};
#define DEBUG_BIT(bit) (1U << feature_debug_##bit)
#define DUMP_BIT(bit) (1U << dump_##bit)
#define DEFINE_DUMP(bit) dump_##bit
#define EACH_DUMPS(X, SEP) \
X(version) \
SEP \
X(copyright) \
SEP \
X(usage) \
SEP \
X(help) \
SEP \
X(yydebug) \
SEP \
X(syntax) \
SEP \
X(parsetree) \
SEP \
X(parsetree_with_comment) \
SEP \
X(insns) \
/* END OF DUMPS */
enum dump_flag_bits {
dump_version_v,
EACH_DUMPS(DEFINE_DUMP, COMMA),
dump_exit_bits = (DUMP_BIT(yydebug) | DUMP_BIT(syntax) |
DUMP_BIT(parsetree) | DUMP_BIT(parsetree_with_comment) |
DUMP_BIT(insns))
};
typedef struct ruby_cmdline_options ruby_cmdline_options_t;
typedef struct {
unsigned int mask;
unsigned int set;
} ruby_features_t;
static inline void
rb_feature_set_to(ruby_features_t *feat, unsigned int bit_mask, unsigned int bit_set)
{
feat->mask |= bit_mask;
feat->set = (feat->set & ~bit_mask) | bit_set;
}
#define FEATURE_SET_TO(feat, bit_mask, bit_set) \
rb_feature_set_to(&(feat), bit_mask, bit_set)
#define FEATURE_SET(feat, bits) FEATURE_SET_TO(feat, bits, bits)
#define FEATURE_SET_RESTORE(feat, save) FEATURE_SET_TO(feat, (save).mask, (save).set & (save).mask)
#define FEATURE_SET_P(feat, bits) ((feat).set & (bits))
struct ruby_cmdline_options {
const char *script;
VALUE script_name;
VALUE e_script;
struct {
struct {
VALUE name;
int index;
} enc;
} src, ext, intern;
VALUE req_list;
ruby_features_t features;
ruby_features_t warn;
unsigned int dump;
#if USE_MJIT
struct mjit_options mjit;
#endif
int sflag, xflag;
unsigned int warning: 1;
unsigned int verbose: 1;
unsigned int do_loop: 1;
unsigned int do_print: 1;
unsigned int do_line: 1;
unsigned int do_split: 1;
unsigned int do_search: 1;
unsigned int setids: 2;
};
static void init_ids(ruby_cmdline_options_t *);
#define src_encoding_index GET_VM()->src_encoding_index
enum {
COMPILATION_FEATURES = (
0
| FEATURE_BIT(frozen_string_literal)
| FEATURE_BIT(debug_frozen_string_literal)
),
DEFAULT_FEATURES = (
(FEATURE_BIT(debug_flag_first)-1)
#if DISABLE_RUBYGEMS
& ~FEATURE_BIT(gems)
#endif
& ~FEATURE_BIT(frozen_string_literal)
& ~FEATURE_BIT(jit)
)
};
static ruby_cmdline_options_t *
cmdline_options_init(ruby_cmdline_options_t *opt)
{
MEMZERO(opt, *opt, 1);
init_ids(opt);
opt->src.enc.index = src_encoding_index;
opt->ext.enc.index = -1;
opt->intern.enc.index = -1;
opt->features.set = DEFAULT_FEATURES;
#ifdef MJIT_FORCE_ENABLE /* to use with: ./configure cppflags="-DMJIT_FORCE_ENABLE" */
opt->features.set |= FEATURE_BIT(jit);
#endif
return opt;
}
static rb_ast_t *load_file(VALUE parser, VALUE fname, VALUE f, int script,
ruby_cmdline_options_t *opt);
static VALUE open_load_file(VALUE fname_v, int *xflag);
static void forbid_setid(const char *, const ruby_cmdline_options_t *);
#define forbid_setid(s) forbid_setid((s), opt)
static struct {
int argc;
char **argv;
} origarg;
static void
show_usage_line(const char *str, unsigned int namelen, unsigned int secondlen, int help)
{
const unsigned int w = 16;
const int wrap = help && namelen + secondlen - 1 > w;
printf(" %.*s%-*.*s%-*s%s\n", namelen-1, str,
(wrap ? 0 : w - namelen + 1),
(help ? secondlen-1 : 0), str + namelen,
(wrap ? w + 3 : 0), (wrap ? "\n" : ""),
str + namelen + secondlen);
}
static void
usage(const char *name, int help)
{
/* This message really ought to be max 23 lines.
* Removed -h because the user already knows that option. Others? */
struct message {
const char *str;
unsigned short namelen, secondlen;
};
#define M(shortopt, longopt, desc) { \
shortopt " " longopt " " desc, \
(unsigned short)sizeof(shortopt), \
(unsigned short)sizeof(longopt), \
}
static const struct message usage_msg[] = {
M("-0[octal]", "", "specify record separator (\\0, if no argument)"),
M("-a", "", "autosplit mode with -n or -p (splits $_ into $F)"),
M("-c", "", "check syntax only"),
M("-Cdirectory", "", "cd to directory before executing your script"),
M("-d", ", --debug", "set debugging flags (set $DEBUG to true)"),
M("-e 'command'", "", "one line of script. Several -e's allowed. Omit [programfile]"),
M("-Eex[:in]", ", --encoding=ex[:in]", "specify the default external and internal character encodings"),
M("-Fpattern", "", "split() pattern for autosplit (-a)"),
M("-i[extension]", "", "edit ARGV files in place (make backup if extension supplied)"),
M("-Idirectory", "", "specify $LOAD_PATH directory (may be used more than once)"),
M("-l", "", "enable line ending processing"),
M("-n", "", "assume 'while gets(); ... end' loop around your script"),
M("-p", "", "assume loop like -n but print line also like sed"),
M("-rlibrary", "", "require the library before executing your script"),
M("-s", "", "enable some switch parsing for switches after script name"),
M("-S", "", "look for the script using PATH environment variable"),
M("-v", "", "print the version number, then turn on verbose mode"),
M("-w", "", "turn warnings on for your script"),
M("-W[level=2|:category]", "", "set warning level; 0=silence, 1=medium, 2=verbose"),
M("-x[directory]", "", "strip off text before #!ruby line and perhaps cd to directory"),
M("--jit", "", "enable JIT with default options (experimental)"),
M("--jit-[option]","", "enable JIT with an option (experimental)"),
M("-h", "", "show this message, --help for more info"),
};
static const struct message help_msg[] = {
M("--copyright", "", "print the copyright"),
M("--dump={insns|parsetree|...}[,...]", "",
"dump debug information. see below for available dump list"),
M("--enable={gems|rubyopt|...}[,...]", ", --disable={gems|rubyopt|...}[,...]",
"enable or disable features. see below for available features"),
M("--external-encoding=encoding", ", --internal-encoding=encoding",
"specify the default external or internal character encoding"),
M("--verbose", "", "turn on verbose mode and disable script from stdin"),
M("--version", "", "print the version number, then exit"),
M("--help", "", "show this message, -h for short message"),
};
static const struct message dumps[] = {
M("insns", "", "instruction sequences"),
M("yydebug", "", "yydebug of yacc parser generator"),
M("parsetree", "", "AST"),
M("parsetree_with_comment", "", "AST with comments"),
};
static const struct message features[] = {
M("gems", "", "rubygems (default: "DEFAULT_RUBYGEMS_ENABLED")"),
M("did_you_mean", "", "did_you_mean (default: "DEFAULT_RUBYGEMS_ENABLED")"),
M("rubyopt", "", "RUBYOPT environment variable (default: enabled)"),
M("frozen-string-literal", "", "freeze all string literals (default: disabled)"),
M("jit", "", "JIT compiler (default: disabled)"),
};
static const struct message warn_categories[] = {
M("deprecated", "", "deprecated features"),
M("experimental", "", "experimental features"),
};
static const struct message mjit_options[] = {
M("--jit-warnings", "", "Enable printing JIT warnings"),
M("--jit-debug", "", "Enable JIT debugging (very slow), or add cflags if specified"),
M("--jit-wait", "", "Wait until JIT compilation finishes every time (for testing)"),
M("--jit-save-temps", "", "Save JIT temporary files in $TMP or /tmp (for testing)"),
M("--jit-verbose=num", "", "Print JIT logs of level num or less to stderr (default: 0)"),
M("--jit-max-cache=num", "", "Max number of methods to be JIT-ed in a cache (default: 100)"),
M("--jit-min-calls=num", "", "Number of calls to trigger JIT (for testing, default: 10000)"),
};
int i;
const int num = numberof(usage_msg) - (help ? 1 : 0);
#define SHOW(m) show_usage_line((m).str, (m).namelen, (m).secondlen, help)
printf("Usage: %s [switches] [--] [programfile] [arguments]\n", name);
for (i = 0; i < num; ++i)
SHOW(usage_msg[i]);
if (!help) return;
for (i = 0; i < numberof(help_msg); ++i)
SHOW(help_msg[i]);
puts("Dump List:");
for (i = 0; i < numberof(dumps); ++i)
SHOW(dumps[i]);
puts("Features:");
for (i = 0; i < numberof(features); ++i)
SHOW(features[i]);
puts("Warning categories:");
for (i = 0; i < numberof(warn_categories); ++i)
SHOW(warn_categories[i]);
puts("JIT options (experimental):");
for (i = 0; i < numberof(mjit_options); ++i)
SHOW(mjit_options[i]);
}
#define rubylib_path_new rb_str_new
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_path_new(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_PTR(buf), p, len);
}
}
#ifdef HAVE_CYGWIN_CONV_PATH
#define CONV_TO_POSIX_PATH(p, lib) \
cygwin_conv_path(CCP_WIN_A_TO_POSIX|CCP_RELATIVE, (p), (lib), sizeof(lib))
#else
# error no cygwin_conv_path
#endif
if (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;
}
static VALUE
locale_path(VALUE path)
{
rb_enc_associate(path, rb_locale_encoding());
return path;
}
void
ruby_incpush(const char *path)
{
ruby_push_include(path, locale_path);
}
static VALUE
expand_include_path(VALUE path)
{
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);
}
#undef UTF8_PATH
#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;
}
HANDLE
rb_libruby_handle(void)
{
return libruby;
}
static inline void
translit_char_bin(char *p, int from, int to)
{
while (*p) {
if ((unsigned char)*p == from)
*p = to;
p++;
}
}
#endif
#ifdef _WIN32
# define UTF8_PATH 1
#endif
#ifndef UTF8_PATH
# define UTF8_PATH 0
#endif
#if UTF8_PATH
# define IF_UTF8_PATH(t, f) t
#else
# define IF_UTF8_PATH(t, f) f
#endif
#if UTF8_PATH
static VALUE
str_conv_enc(VALUE str, rb_encoding *from, rb_encoding *to)
{
return rb_str_conv_enc_opts(str, from, to,
ECONV_UNDEF_REPLACE|ECONV_INVALID_REPLACE,
Qnil);
}
#else
# define str_conv_enc(str, from, to) (str)
#endif
void ruby_init_loadpath(void);
#if defined(LOAD_RELATIVE)
static VALUE
runtime_libruby_path(void)
{
#if defined _WIN32 || defined __CYGWIN__
DWORD len = RSTRING_EMBED_LEN_MAX, ret;
VALUE path;
VALUE wsopath = rb_str_new(0, len*sizeof(WCHAR));
WCHAR *wlibpath;
char *libpath;
while (wlibpath = (WCHAR *)RSTRING_PTR(wsopath),
ret = GetModuleFileNameW(libruby, wlibpath, len),
(ret == len))
{
rb_str_modify_expand(wsopath, len*sizeof(WCHAR));
rb_str_set_len(wsopath, (len += len)*sizeof(WCHAR));
}
if (!ret || ret > len) rb_fatal("failed to get module file name");
#if defined __CYGWIN__
{
const int win_to_posix = CCP_WIN_W_TO_POSIX | CCP_RELATIVE;
size_t newsize = cygwin_conv_path(win_to_posix, wlibpath, 0, 0);
if (!newsize) rb_fatal("failed to convert module path to cygwin");
path = rb_str_new(0, newsize);
libpath = RSTRING_PTR(path);
if (cygwin_conv_path(win_to_posix, wlibpath, libpath, newsize)) {
rb_str_resize(path, 0);
}
}
#else
{
DWORD i;
for (len = ret, i = 0; i < len; ++i) {
if (wlibpath[i] == L'\\') {
wlibpath[i] = L'/';
ret = i+1; /* chop after the last separator */
}
}
}
len = WideCharToMultiByte(CP_UTF8, 0, wlibpath, ret, NULL, 0, NULL, NULL);
path = rb_utf8_str_new(0, len);
libpath = RSTRING_PTR(path);
WideCharToMultiByte(CP_UTF8, 0, wlibpath, ret, libpath, len, NULL, NULL);
#endif
rb_str_resize(wsopath, 0);
return path;
#elif defined(HAVE_DLADDR)
Dl_info dli;
VALUE fname, path;
const void* addr = (void *)(VALUE)expand_include_path;
if (!dladdr((void *)addr, &dli)) {
return rb_str_new(0, 0);
}
#ifdef __linux__
else if (origarg.argc > 0 && origarg.argv && dli.dli_fname == origarg.argv[0]) {
fname = rb_str_new_cstr("/proc/self/exe");
path = rb_readlink(fname, NULL);
}
#endif
else {
fname = rb_str_new_cstr(dli.dli_fname);
path = rb_realpath_internal(Qnil, fname, 1);
}
rb_str_resize(fname, 0);
return path;
#else
# error relative load path is not supported on this platform.
#endif
}
#endif
#define INITIAL_LOAD_PATH_MARK rb_intern_const("@gem_prelude_index")
VALUE ruby_archlibdir_path, ruby_prefix_path;
void
ruby_init_loadpath(void)
{
VALUE load_path, archlibdir = 0;
ID id_initial_load_path_mark;
const char *paths = ruby_initial_load_paths;
#if defined LOAD_RELATIVE
#if !defined ENABLE_MULTIARCH
# define RUBY_ARCH_PATH ""
#elif defined RUBY_ARCH
# define RUBY_ARCH_PATH "/"RUBY_ARCH
#else
# define RUBY_ARCH_PATH "/"RUBY_PLATFORM
#endif
char *libpath;
VALUE sopath;
size_t baselen;
const char *p;
sopath = runtime_libruby_path();
libpath = RSTRING_PTR(sopath);
p = strrchr(libpath, '/');
if (p) {
static const char libdir[] = "/"
#ifdef LIBDIR_BASENAME
LIBDIR_BASENAME
#else
"lib"
#endif
RUBY_ARCH_PATH;
const ptrdiff_t libdir_len = (ptrdiff_t)sizeof(libdir)
- rb_strlen_lit(RUBY_ARCH_PATH) - 1;
static const char bindir[] = "/bin";
const ptrdiff_t bindir_len = (ptrdiff_t)sizeof(bindir) - 1;
const char *p2 = NULL;
#ifdef ENABLE_MULTIARCH
multiarch:
#endif
if (p - libpath >= bindir_len && !STRNCASECMP(p - bindir_len, bindir, bindir_len)) {
p -= bindir_len;
archlibdir = rb_str_subseq(sopath, 0, p - libpath);
rb_str_cat_cstr(archlibdir, libdir);
OBJ_FREEZE_RAW(archlibdir);
}
else if (p - libpath >= libdir_len && !strncmp(p - libdir_len, libdir, libdir_len)) {
archlibdir = rb_str_subseq(sopath, 0, (p2 ? p2 : p) - libpath);
OBJ_FREEZE_RAW(archlibdir);
p -= libdir_len;
}
#ifdef ENABLE_MULTIARCH
else if (p2) {
p = p2;
}
else {
p2 = p;
p = rb_enc_path_last_separator(libpath, p, rb_ascii8bit_encoding());
if (p) goto multiarch;
p = p2;
}
#endif
}
baselen = p - libpath;
rb_str_resize(sopath, baselen);
libpath = RSTRING_PTR(sopath);
#define PREFIX_PATH() sopath
#define BASEPATH() rb_str_buf_cat(rb_str_buf_new(baselen+len), libpath, baselen)
#define RUBY_RELATIVE(path, len) rb_str_buf_cat(BASEPATH(), (path), (len))
#else
const size_t exec_prefix_len = strlen(ruby_exec_prefix);
#define RUBY_RELATIVE(path, len) rubylib_path_new((path), (len))
#define PREFIX_PATH() RUBY_RELATIVE(ruby_exec_prefix, exec_prefix_len)
#endif
rb_gc_register_address(&ruby_prefix_path);
ruby_prefix_path = PREFIX_PATH();
OBJ_FREEZE_RAW(ruby_prefix_path);
if (!archlibdir) archlibdir = ruby_prefix_path;
rb_gc_register_address(&ruby_archlibdir_path);
ruby_archlibdir_path = archlibdir;
load_path = GET_VM()->load_path;
ruby_push_include(getenv("RUBYLIB"), identical_path);
id_initial_load_path_mark = INITIAL_LOAD_PATH_MARK;
while (*paths) {
size_t len = strlen(paths);
VALUE path = RUBY_RELATIVE(paths, len);
rb_ivar_set(path, id_initial_load_path_mark, path);
rb_ary_push(load_path, path);
paths += len + 1;
}
rb_const_set(rb_cObject, rb_intern_const("TMP_RUBY_PREFIX"), ruby_prefix_path);
}
static void
add_modules(VALUE *req_list, const char *mod)
{
VALUE list = *req_list;
VALUE feature;
if (!list) {
*req_list = list = rb_ary_tmp_new(0);
}
feature = rb_str_cat_cstr(rb_str_tmp_new(0), mod);
rb_ary_push(list, feature);
}
static void
require_libraries(VALUE *req_list)
{
VALUE list = *req_list;
VALUE self = rb_vm_top_self();
ID require;
rb_encoding *extenc = rb_default_external_encoding();
CONST_ID(require, "require");
while (list && RARRAY_LEN(list) > 0) {
VALUE feature = rb_ary_shift(list);
rb_enc_associate(feature, extenc);
RBASIC_SET_CLASS_RAW(feature, rb_cString);
OBJ_FREEZE(feature);
rb_funcallv(self, require, 1, &feature);
}
*req_list = 0;
}
static const struct rb_block*
toplevel_context(rb_binding_t *bind)
{
return &bind->block;
}
static void
process_sflag(int *sflag)
{
if (*sflag > 0) {
long n;
const VALUE *args;
VALUE argv = rb_argv;
n = RARRAY_LEN(argv);
args = RARRAY_CONST_PTR(argv);
while (n > 0) {
VALUE v = *args++;
char *s = StringValuePtr(v);
char *p;
int hyphen = FALSE;
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 = TRUE;
}
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] = args[-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);
}
*sflag = -1;
}
}
static long proc_options(long argc, char **argv, ruby_cmdline_options_t *opt, int envopt);
static void
moreswitches(const char *s, ruby_cmdline_options_t *opt, int envopt)
{
long argc, i, len;
char **argv, *p;
const char *ap = 0;
VALUE argstr, argary;
void *ptr;
while (ISSPACE(*s)) s++;
if (!*s) return;
argstr = rb_str_tmp_new((len = strlen(s)) + (envopt!=0));
argary = rb_str_tmp_new(0);
p = RSTRING_PTR(argstr);
if (envopt) *p++ = ' ';
memcpy(p, s, len + 1);
ap = 0;
rb_str_cat(argary, (char *)&ap, sizeof(ap));
while (*p) {
ap = p;
rb_str_cat(argary, (char *)&ap, sizeof(ap));
while (*p && !ISSPACE(*p)) ++p;
if (!*p) break;
*p++ = '\0';
while (ISSPACE(*p)) ++p;
}
argc = RSTRING_LEN(argary) / sizeof(ap);
ap = 0;
rb_str_cat(argary, (char *)&ap, sizeof(ap));
argv = ptr = ALLOC_N(char *, argc);
MEMMOVE(argv, RSTRING_PTR(argary), char *, argc);
while ((i = proc_options(argc, argv, opt, envopt)) > 1 && envopt && (argc -= i) > 0) {
argv += i;
if (**argv != '-') {
*--*argv = '-';
}
if ((*argv)[1]) {
++argc;
--argv;
}
}
ruby_xfree(ptr);
/* get rid of GC */
rb_str_resize(argary, 0);
rb_str_resize(argstr, 0);
}
static int
name_match_p(const char *name, const char *str, size_t len)
{
if (len == 0) return 0;
while (1) {
while (TOLOWER(*str) == *name) {
if (!--len || !*++str) return 1;
++name;
}
if (*str != '-' && *str != '_') return 0;
while (ISALNUM(*name)) name++;
if (*name != '-' && *name != '_') return 0;
++name;
++str;
}
}
#define NAME_MATCH_P(name, str, len) \
((len) < (int)sizeof(name) && name_match_p((name), (str), (len)))
#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; \
}
#define LITERAL_NAME_ELEMENT(name) #name
static void
feature_option(const char *str, int len, void *arg, const unsigned int enable)
{
static const char list[] = EACH_FEATURES(LITERAL_NAME_ELEMENT, ", ");
ruby_features_t *argp = arg;
unsigned int mask = ~0U;
unsigned int set = 0U;
#if AMBIGUOUS_FEATURE_NAMES
int matched = 0;
# define FEATURE_FOUND ++matched
#else
# define FEATURE_FOUND goto found
#endif
#define SET_FEATURE(bit) \
if (NAME_MATCH_P(#bit, str, len)) {set |= mask = FEATURE_BIT(bit); FEATURE_FOUND;}
EACH_FEATURES(SET_FEATURE, ;);
if (NAME_MATCH_P("all", str, len)) {
found:
FEATURE_SET_TO(*argp, mask, (mask & enable));
return;
}
#if AMBIGUOUS_FEATURE_NAMES
if (matched == 1) goto found;
if (matched > 1) {
VALUE mesg = rb_sprintf("ambiguous feature: `%.*s' (", len, str);
#define ADD_FEATURE_NAME(bit) \
if (FEATURE_BIT(bit) & set) { \
rb_str_cat_cstr(mesg, #bit); \
if (--matched) rb_str_cat_cstr(mesg, ", "); \
}
EACH_FEATURES(ADD_FEATURE_NAME, ;);
rb_str_cat_cstr(mesg, ")");
rb_exc_raise(rb_exc_new_str(rb_eRuntimeError, mesg));
#undef ADD_FEATURE_NAME
}
#endif
rb_warn("unknown argument for --%s: `%.*s'",
enable ? "enable" : "disable", len, str);
rb_warn("features are [%.*s].", (int)strlen(list), list);
}
static void
enable_option(const char *str, int len, void *arg)
{
feature_option(str, len, arg, ~0U);
}
static void
disable_option(const char *str, int len, void *arg)
{
feature_option(str, len, arg, 0U);
}
RUBY_EXTERN const int ruby_patchlevel;
int ruby_env_debug_option(const char *str, int len, void *arg);
static void
debug_option(const char *str, int len, void *arg)
{
static const char list[] = EACH_DEBUG_FEATURES(LITERAL_NAME_ELEMENT, ", ");
ruby_features_t *argp = arg;
#define SET_WHEN_DEBUG(bit) \
if (NAME_MATCH_P(#bit, str, len)) { \
FEATURE_SET(*argp, DEBUG_BIT(bit)); \
return; \
}
EACH_DEBUG_FEATURES(SET_WHEN_DEBUG, ;);
#ifdef RUBY_DEVEL
if (ruby_patchlevel < 0 && ruby_env_debug_option(str, len, 0)) return;
#endif
rb_warn("unknown argument for --debug: `%.*s'", len, str);
rb_warn("debug features are [%.*s].", (int)strlen(list), list);
}
static void
dump_option(const char *str, int len, void *arg)
{
static const char list[] = EACH_DUMPS(LITERAL_NAME_ELEMENT, ", ");
#define SET_WHEN_DUMP(bit) SET_WHEN(#bit, DUMP_BIT(bit), str, len)
EACH_DUMPS(SET_WHEN_DUMP, ;);
rb_warn("don't know how to dump `%.*s',", len, str);
rb_warn("but only [%.*s].", (int)strlen(list), list);
}
static void
set_option_encoding_once(const char *type, VALUE *name, const char *e, long elen)
{
VALUE ename;
if (!elen) elen = strlen(e);
ename = rb_str_new(e, elen);
if (*name &&
rb_funcall(ename, rb_intern("casecmp"), 1, *name) != INT2FIX(0)) {
rb_raise(rb_eRuntimeError,
"%s already set to %"PRIsVALUE, type, *name);
}
*name = ename;
}
#define set_internal_encoding_once(opt, e, elen) \
set_option_encoding_once("default_internal", &(opt)->intern.enc.name, (e), (elen))
#define set_external_encoding_once(opt, e, elen) \
set_option_encoding_once("default_external", &(opt)->ext.enc.name, (e), (elen))
#define set_source_encoding_once(opt, e, elen) \
set_option_encoding_once("source", &(opt)->src.enc.name, (e), (elen))
#if USE_MJIT
static void
setup_mjit_options(const char *s, struct mjit_options *mjit_opt)
{
if (*s == 0) return;
else if (strcmp(s, "-warnings") == 0) {
mjit_opt->warnings = 1;
}
else if (strncmp(s, "-debug=", 7) == 0) {
mjit_opt->debug_flags = strdup(s + 7);
}
else if (strcmp(s, "-debug") == 0) {
mjit_opt->debug = 1;
}
else if (strcmp(s, "-wait") == 0) {
mjit_opt->wait = 1;
}
else if (strcmp(s, "-save-temps") == 0) {
mjit_opt->save_temps = 1;
}
else if (strncmp(s, "-verbose=", 9) == 0) {
mjit_opt->verbose = atoi(s + 9);
}
else if (strncmp(s, "-max-cache=", 11) == 0) {
mjit_opt->max_cache_size = atoi(s + 11);
}