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7ea2ceddb8
which included commits to RCS files with non-trunk default branches. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@12 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
1149 lines
21 KiB
C
1149 lines
21 KiB
C
/************************************************
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hash.c -
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$Author$
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$Date$
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created at: Mon Nov 22 18:51:18 JST 1993
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Copyright (C) 1993-1997 Yukihiro Matsumoto
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************************************************/
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#include "ruby.h"
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#include "st.h"
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#include "sig.h"
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#include <sys/stat.h>
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#ifndef HAVE_STRING_H
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char *strchr();
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#endif
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#define HASH_DELETED 0x1
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#define HASH_REHASHED 0x2
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#define HASH_FREEZE FL_USER1
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static void
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hash_modify(hash)
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VALUE hash;
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{
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rb_secure(5);
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if (FL_TEST(hash, HASH_FREEZE)) {
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TypeError("can't modify frozen hash");
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}
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}
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VALUE
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hash_freeze(hash)
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VALUE hash;
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{
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FL_SET(hash, HASH_FREEZE);
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return hash;
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}
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static VALUE
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hash_frozen_p(hash)
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VALUE hash;
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{
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if (FL_TEST(hash, HASH_FREEZE))
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return TRUE;
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return FALSE;
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}
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#ifndef NT
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char *getenv();
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#endif
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VALUE cHash;
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static VALUE envtbl;
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static ID hash;
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VALUE
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rb_hash(obj)
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VALUE obj;
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{
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return rb_funcall(obj, hash, 0);
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}
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static int
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any_cmp(a, b)
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VALUE a, b;
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{
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if (FIXNUM_P(a)) {
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if (FIXNUM_P(b)) return a != b;
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}
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else if (TYPE(a) == T_STRING) {
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if (TYPE(b) == T_STRING) return str_cmp(a, b);
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}
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DEFER_INTS;
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a = !rb_eql(a, b);
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ENABLE_INTS;
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return a;
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}
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static int
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any_hash(a, mod)
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VALUE a;
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int mod;
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{
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unsigned int hval;
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switch (TYPE(a)) {
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case T_FIXNUM:
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hval = a;
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break;
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case T_STRING:
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hval = str_hash(a);
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break;
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default:
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DEFER_INTS;
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hval = rb_funcall(a, hash, 0);
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if (!FIXNUM_P(hval)) {
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hval = rb_funcall(hval, '%', 1, INT2FIX(65439));
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}
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ENABLE_INTS;
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hval = FIX2INT(hval);
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}
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return hval % mod;
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}
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static struct st_hash_type objhash = {
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any_cmp,
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any_hash,
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};
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struct hash_foreach_arg {
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VALUE hash;
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enum st_retval (*func)();
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char *arg;
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};
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static int
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hash_foreach_iter(key, value, arg)
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VALUE key, value;
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struct hash_foreach_arg *arg;
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{
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int status;
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if (key == Qnil) return ST_CONTINUE;
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status = (*arg->func)(key, value, arg->arg);
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if (RHASH(arg->hash)->status & HASH_REHASHED) return ST_STOP;
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return status;
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}
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static VALUE
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hash_foreach_call(arg)
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struct hash_foreach_arg *arg;
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{
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st_foreach(RHASH(arg->hash)->tbl, hash_foreach_iter, arg);
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return Qnil;
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}
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static int
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hash_delete_nil(key, value)
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VALUE key, value;
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{
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if (key == Qnil) return ST_DELETE;
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return ST_CONTINUE;
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}
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static void
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hash_foreach_ensure(hash)
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VALUE hash;
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{
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RHASH(hash)->iter_lev--;
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if (RHASH(hash)->iter_lev == 0) {
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if (RHASH(hash)->status & HASH_DELETED) {
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st_foreach(RHASH(hash)->tbl, hash_delete_nil, 0);
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}
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RHASH(hash)->status = 0;
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}
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}
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static int
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hash_foreach(hash, func, farg)
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VALUE hash;
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enum st_retval (*func)();
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char *farg;
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{
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struct hash_foreach_arg arg;
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RHASH(hash)->iter_lev++;
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arg.hash = hash;
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arg.func = func;
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arg.arg = farg;
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return rb_ensure(hash_foreach_call, (VALUE)&arg, hash_foreach_ensure, (VALUE)hash);
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}
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static VALUE
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hash_s_new(argc, argv, class)
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int argc;
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VALUE *argv;
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VALUE class;
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{
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VALUE sz;
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int size;
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NEWOBJ(hash, struct RHash);
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OBJSETUP(hash, class, T_HASH);
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rb_scan_args(argc, argv, "01", &sz);
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if (NIL_P(sz)) size = 0;
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else size = NUM2INT(sz);
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hash->iter_lev = 0;
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hash->status = 0;
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hash->tbl = 0; /* avoid GC crashing */
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hash->tbl = st_init_table_with_size(&objhash, size);
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return (VALUE)hash;
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}
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static VALUE
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hash_new2(class)
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VALUE class;
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{
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return hash_s_new(0, 0, class);
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}
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VALUE
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hash_new()
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{
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return hash_new2(cHash);
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}
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static VALUE
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hash_s_create(argc, argv, class)
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int argc;
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VALUE *argv;
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VALUE class;
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{
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VALUE hash;
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int i;
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if (argc == 1 && TYPE(argv[0]) == T_HASH) {
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if (class == CLASS_OF(argv[0])) return argv[0];
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else {
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NEWOBJ(hash, struct RHash);
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OBJSETUP(hash, class, T_HASH);
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hash->iter_lev = 0;
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hash->status = 0;
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hash->tbl = 0; /* avoid GC crashing */
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hash->tbl = (st_table*)st_copy(RHASH(argv[0])->tbl);
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return (VALUE)hash;
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}
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}
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if (argc % 2 != 0) {
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ArgError("odd number args for Hash");
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}
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hash = hash_new2(class);
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for (i=0; i<argc; i+=2) {
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st_insert(RHASH(hash)->tbl, argv[i], argv[i+1]);
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}
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return hash;
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}
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static VALUE
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hash_clone(hash)
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VALUE hash;
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{
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NEWOBJ(hash2, struct RHash);
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CLONESETUP(hash2, hash);
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hash2->iter_lev = 0;
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hash2->status = 0;
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hash2->tbl = 0; /* avoid GC crashing */
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hash2->tbl = (st_table*)st_copy(RHASH(hash)->tbl);
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return (VALUE)hash2;
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}
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static VALUE
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hash_dup(hash)
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VALUE hash;
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{
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NEWOBJ(hash2, struct RHash);
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OBJSETUP(hash2, CLASS_OF(hash), T_HASH);
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hash2->iter_lev = 0;
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hash2->status = 0;
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hash2->tbl = 0; /* avoid GC crashing */
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hash2->tbl = (st_table*)st_copy(RHASH(hash)->tbl);
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return (VALUE)hash2;
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}
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static int
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hash_rehash_i(key, value, tbl)
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VALUE key, value;
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st_table *tbl;
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{
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if (key != Qnil) {
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st_insert(tbl, key, value);
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}
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return ST_CONTINUE;
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}
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static VALUE
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hash_rehash(hash)
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VALUE hash;
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{
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st_table *tbl;
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tbl = st_init_table_with_size(&objhash, RHASH(hash)->tbl->num_entries);
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st_foreach(RHASH(hash)->tbl, hash_rehash_i, tbl);
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st_free_table(RHASH(hash)->tbl);
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RHASH(hash)->tbl = tbl;
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if (RHASH(hash)->iter_lev > 0) RHASH(hash)->status |= HASH_REHASHED;
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return (VALUE)hash;
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}
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VALUE
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hash_aref(hash, key)
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VALUE hash, key;
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{
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VALUE val;
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if (!st_lookup(RHASH(hash)->tbl, key, &val)) {
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return Qnil;
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}
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return val;
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}
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static VALUE
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hash_indexes(argc, argv, hash)
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int argc;
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VALUE *argv;
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VALUE hash;
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{
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VALUE indexes;
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int i;
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indexes = ary_new2(argc);
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for (i=0; i<argc; i++) {
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RARRAY(indexes)->ptr[i] = hash_aref(hash, argv[i]);
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}
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RARRAY(indexes)->len = i;
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return indexes;
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}
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static VALUE
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hash_delete(hash, key)
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VALUE hash, key;
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{
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VALUE val;
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hash_modify(hash);
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if (RHASH(hash)->iter_lev > 0
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&& st_delete_safe(RHASH(hash)->tbl, &key, &val, Qnil))
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return val;
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else if (st_delete(RHASH(hash)->tbl, &key, &val))
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return val;
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if (iterator_p()) rb_yield(key);
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return Qnil;
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}
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struct shift_var {
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int stop;
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VALUE key;
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VALUE val;
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};
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static int
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shift_i(key, value, var)
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VALUE key, value;
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struct shift_var *var;
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{
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if (key == Qnil) return ST_CONTINUE;
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if (var->stop) return ST_STOP;
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var->stop = 1;
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var->key = key;
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var->val = value;
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return ST_DELETE;
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}
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static VALUE
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hash_shift(hash)
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VALUE hash;
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{
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struct shift_var var;
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hash_modify(hash);
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var.stop = 0;
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st_foreach(RHASH(hash)->tbl, shift_i, &var);
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if (var.stop == 0) return Qnil;
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return assoc_new(var.key, var.val);
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}
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static int
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delete_if_i(key, value)
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VALUE key, value;
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{
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if (key == Qnil) return ST_CONTINUE;
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if (rb_yield(assoc_new(key, value)))
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return ST_DELETE;
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return ST_CONTINUE;
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}
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static VALUE
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hash_delete_if(hash)
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VALUE hash;
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{
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hash_modify(hash);
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hash_foreach(hash, delete_if_i, 0);
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return (VALUE)hash;
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}
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static int
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clear_i(key, value)
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VALUE key, value;
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{
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return ST_DELETE;
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}
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static VALUE
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hash_clear(hash)
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VALUE hash;
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{
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hash_modify(hash);
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st_foreach(RHASH(hash)->tbl, clear_i);
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return (VALUE)hash;
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}
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VALUE
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hash_aset(hash, key, val)
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VALUE hash, key, val;
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{
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hash_modify(hash);
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if (NIL_P(val)) {
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hash_delete(hash, key);
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return Qnil;
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}
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if (TYPE(key) == T_STRING) {
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key = str_dup_freezed(key);
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}
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st_insert(RHASH(hash)->tbl, key, val);
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return val;
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}
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static VALUE
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hash_length(hash)
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VALUE hash;
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{
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return INT2FIX(RHASH(hash)->tbl->num_entries);
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}
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static VALUE
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hash_empty_p(hash)
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VALUE hash;
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{
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if (RHASH(hash)->tbl->num_entries == 0)
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return TRUE;
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return FALSE;
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}
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static int
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each_value_i(key, value)
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VALUE key, value;
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{
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if (key == Qnil) return ST_CONTINUE;
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rb_yield(value);
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return ST_CONTINUE;
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}
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static VALUE
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hash_each_value(hash)
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VALUE hash;
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{
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hash_foreach(hash, each_value_i);
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return (VALUE)hash;
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}
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static int
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each_key_i(key, value)
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VALUE key, value;
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{
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if (key == Qnil) return ST_CONTINUE;
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rb_yield(key);
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return ST_CONTINUE;
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}
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static VALUE
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hash_each_key(hash)
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VALUE hash;
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{
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hash_foreach(hash, each_key_i);
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return (VALUE)hash;
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}
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static int
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each_pair_i(key, value)
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VALUE key, value;
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{
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if (key == Qnil) return ST_CONTINUE;
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rb_yield(assoc_new(key, value));
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return ST_CONTINUE;
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}
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static VALUE
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hash_each_pair(hash)
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VALUE hash;
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{
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hash_foreach(hash, each_pair_i);
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return (VALUE)hash;
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}
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static int
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to_a_i(key, value, ary)
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VALUE key, value, ary;
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{
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if (key == Qnil) return ST_CONTINUE;
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ary_push(ary, assoc_new(key, value));
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return ST_CONTINUE;
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}
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static VALUE
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hash_to_a(hash)
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VALUE hash;
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{
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VALUE ary;
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ary = ary_new();
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st_foreach(RHASH(hash)->tbl, to_a_i, ary);
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return ary;
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}
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static int
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inspect_i(key, value, str)
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VALUE key, value, str;
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{
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VALUE str2;
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if (key == Qnil) return ST_CONTINUE;
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if (RSTRING(str)->len > 1) {
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str_cat(str, ", ", 2);
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}
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str2 = rb_inspect(key);
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str_cat(str, RSTRING(str2)->ptr, RSTRING(str2)->len);
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str_cat(str, "=>", 2);
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str2 = rb_inspect(value);
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str_cat(str, RSTRING(str2)->ptr, RSTRING(str2)->len);
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return ST_CONTINUE;
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}
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static VALUE
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hash_inspect(hash)
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VALUE hash;
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{
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VALUE str;
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str = str_new2("{");
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st_foreach(RHASH(hash)->tbl, inspect_i, str);
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str_cat(str, "}", 1);
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return str;
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}
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static VALUE
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hash_to_s(hash)
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VALUE hash;
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{
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return ary_to_s(hash_to_a(hash));
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}
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static int
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keys_i(key, value, ary)
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VALUE key, value, ary;
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{
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if (key == Qnil) return ST_CONTINUE;
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ary_push(ary, key);
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return ST_CONTINUE;
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}
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static VALUE
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hash_keys(hash)
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VALUE hash;
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{
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VALUE ary;
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ary = ary_new();
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st_foreach(RHASH(hash)->tbl, keys_i, ary);
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return ary;
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}
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static int
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values_i(key, value, ary)
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VALUE key, value, ary;
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{
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if (key == Qnil) return ST_CONTINUE;
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ary_push(ary, value);
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return ST_CONTINUE;
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}
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static VALUE
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hash_values(hash)
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VALUE hash;
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{
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VALUE ary;
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ary = ary_new();
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st_foreach(RHASH(hash)->tbl, values_i, ary);
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return ary;
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}
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static VALUE
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hash_has_key(hash, key)
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VALUE hash;
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VALUE key;
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{
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if (st_lookup(RHASH(hash)->tbl, key, 0)) {
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return TRUE;
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}
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return FALSE;
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}
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|
|
static int
|
|
hash_search_value(key, value, data)
|
|
VALUE key, value, *data;
|
|
{
|
|
if (key == Qnil) return ST_CONTINUE;
|
|
if (rb_equal(value, data[1])) {
|
|
data[0] = TRUE;
|
|
return ST_STOP;
|
|
}
|
|
return ST_CONTINUE;
|
|
}
|
|
|
|
static VALUE
|
|
hash_has_value(hash, val)
|
|
VALUE hash;
|
|
VALUE val;
|
|
{
|
|
VALUE data[2];
|
|
|
|
data[0] = FALSE;
|
|
data[1] = val;
|
|
st_foreach(RHASH(hash)->tbl, hash_search_value, data);
|
|
return data[0];
|
|
}
|
|
|
|
struct equal_data {
|
|
int result;
|
|
st_table *tbl;
|
|
};
|
|
|
|
static int
|
|
equal_i(key, val1, data)
|
|
VALUE key, val1;
|
|
struct equal_data *data;
|
|
{
|
|
VALUE val2;
|
|
|
|
if (key == Qnil) return ST_CONTINUE;
|
|
if (!st_lookup(data->tbl, key, &val2)) {
|
|
data->result = FALSE;
|
|
return ST_STOP;
|
|
}
|
|
if (!rb_equal(val1, val2)) {
|
|
data->result = FALSE;
|
|
return ST_STOP;
|
|
}
|
|
return ST_CONTINUE;
|
|
}
|
|
|
|
static VALUE
|
|
hash_equal(hash1, hash2)
|
|
VALUE hash1, hash2;
|
|
{
|
|
struct equal_data data;
|
|
|
|
if (TYPE(hash2) != T_HASH) return FALSE;
|
|
if (RHASH(hash1)->tbl->num_entries != RHASH(hash2)->tbl->num_entries)
|
|
return FALSE;
|
|
|
|
data.tbl = RHASH(hash2)->tbl;
|
|
data.result = TRUE;
|
|
st_foreach(RHASH(hash1)->tbl, equal_i, &data);
|
|
|
|
return data.result;
|
|
}
|
|
|
|
static int
|
|
hash_invert_i(key, value, hash)
|
|
VALUE key, value;
|
|
VALUE hash;
|
|
{
|
|
if (key == Qnil) return ST_CONTINUE;
|
|
hash_aset(hash, value, key);
|
|
return ST_CONTINUE;
|
|
}
|
|
|
|
static VALUE
|
|
hash_invert(hash)
|
|
VALUE hash;
|
|
{
|
|
VALUE h = hash_new();
|
|
|
|
st_foreach(RHASH(hash)->tbl, hash_invert_i, h);
|
|
return h;
|
|
}
|
|
|
|
static int
|
|
hash_update_i(key, value, hash)
|
|
VALUE key, value;
|
|
VALUE hash;
|
|
{
|
|
if (key == Qnil) return ST_CONTINUE;
|
|
hash_aset(hash, key, value);
|
|
return ST_CONTINUE;
|
|
}
|
|
|
|
static VALUE
|
|
hash_update(hash1, hash2)
|
|
VALUE hash1, hash2;
|
|
{
|
|
Check_Type(hash2, T_HASH);
|
|
|
|
st_foreach(RHASH(hash2)->tbl, hash_update_i, hash1);
|
|
return hash1;
|
|
}
|
|
|
|
int env_path_tainted();
|
|
static int path_tainted = -1;
|
|
|
|
#ifndef NT
|
|
extern char **environ;
|
|
#endif
|
|
|
|
static VALUE
|
|
env_delete(obj, name)
|
|
VALUE obj, name;
|
|
{
|
|
int i, len;
|
|
char *nam, *val = 0;
|
|
|
|
rb_secure(4);
|
|
Check_Type(name, T_STRING);
|
|
nam = RSTRING(name)->ptr;
|
|
len = strlen(nam);
|
|
if (strcmp(nam, "PATH") == 0) path_tainted = 0;
|
|
for(i=0; environ[i]; i++) {
|
|
if (strncmp(environ[i], nam, len) == 0 && environ[i][len] == '=') {
|
|
val = environ[i]+len+1;
|
|
break;
|
|
}
|
|
}
|
|
while (environ[i]) {
|
|
environ[i] = environ[i+1];
|
|
i++;
|
|
}
|
|
if (val) {
|
|
return str_new2(val);
|
|
}
|
|
return Qnil;
|
|
}
|
|
|
|
static VALUE
|
|
env_delete_method(obj, name)
|
|
VALUE obj, name;
|
|
{
|
|
VALUE val = env_delete(obj, name);
|
|
if (iterator_p()) rb_yield(name);
|
|
return val;
|
|
}
|
|
|
|
static VALUE
|
|
f_getenv(obj, name)
|
|
VALUE obj, name;
|
|
{
|
|
char *env;
|
|
|
|
Check_Type(name, T_STRING);
|
|
|
|
if (strlen(RSTRING(name)->ptr) != RSTRING(name)->len)
|
|
ArgError("Bad environment name");
|
|
|
|
env = getenv(RSTRING(name)->ptr);
|
|
if (env) {
|
|
if (strcmp(RSTRING(name)->ptr, "PATH") == 0 && !env_path_tainted())
|
|
return str_new2(env);
|
|
return str_taint(str_new2(env));
|
|
}
|
|
return Qnil;
|
|
}
|
|
|
|
static int
|
|
path_check_1(path)
|
|
char *path;
|
|
{
|
|
struct stat st;
|
|
char *p = 0;
|
|
char *s;
|
|
|
|
for (;;) {
|
|
if (stat(path, &st) == 0 && (st.st_mode & 2)) {
|
|
return 0;
|
|
}
|
|
s = strrchr(path, '/');
|
|
if (p) *p = '/';
|
|
if (!s || s == path) return 1;
|
|
p = s;
|
|
*p = '\0';
|
|
}
|
|
}
|
|
|
|
static void
|
|
path_check(path)
|
|
char *path;
|
|
{
|
|
char *p = path;
|
|
char *pend = strchr(path, ':');
|
|
|
|
if (!path) {
|
|
path_tainted = 0;
|
|
}
|
|
|
|
p = path;
|
|
pend = strchr(path, ':');
|
|
|
|
for (;;) {
|
|
int safe;
|
|
|
|
if (pend) *pend = '\0';
|
|
safe = path_check_1(p);
|
|
if (!pend) break;
|
|
*pend = ':';
|
|
if (!safe) {
|
|
path_tainted = 1;
|
|
return;
|
|
}
|
|
p = pend + 1;
|
|
pend = strchr(p, ':');
|
|
}
|
|
path_tainted = 0;
|
|
}
|
|
|
|
int
|
|
env_path_tainted()
|
|
{
|
|
if (path_tainted < 0) {
|
|
path_check(getenv("PATH"));
|
|
}
|
|
return path_tainted;
|
|
}
|
|
|
|
static VALUE
|
|
f_setenv(obj, name, value)
|
|
VALUE obj, name, value;
|
|
{
|
|
if (rb_safe_level() >= 4) {
|
|
extern VALUE eSecurityError;
|
|
Raise(eSecurityError, "cannot change environment variable");
|
|
}
|
|
|
|
Check_SafeStr(name);
|
|
if (NIL_P(value)) {
|
|
env_delete(obj, name);
|
|
return Qnil;
|
|
}
|
|
|
|
Check_SafeStr(value);
|
|
if (strlen(RSTRING(name)->ptr) != RSTRING(name)->len)
|
|
ArgError("Bad environment name");
|
|
if (strlen(RSTRING(value)->ptr) != RSTRING(value)->len)
|
|
ArgError("Bad environment value");
|
|
|
|
setenv(RSTRING(name)->ptr, RSTRING(value)->ptr, 1);
|
|
if (strcmp(RSTRING(name)->ptr, "PATH") == 0) {
|
|
char *p, pend;
|
|
|
|
if (str_tainted(value)) {
|
|
/* already tainted, no check */
|
|
path_tainted = 1;
|
|
return TRUE;
|
|
}
|
|
|
|
path_check(RSTRING(name)->ptr);
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
static VALUE
|
|
env_keys()
|
|
{
|
|
char **env;
|
|
VALUE ary = ary_new();
|
|
|
|
env = environ;
|
|
while (*env) {
|
|
char *s = strchr(*env, '=');
|
|
ary_push(ary, str_taint(str_new(*env, s-*env)));
|
|
env++;
|
|
}
|
|
return ary;
|
|
}
|
|
|
|
static VALUE
|
|
env_each_key(hash)
|
|
VALUE hash;
|
|
{
|
|
return ary_each(env_keys());
|
|
}
|
|
|
|
static VALUE
|
|
env_values()
|
|
{
|
|
char **env;
|
|
VALUE ary = ary_new();
|
|
|
|
env = environ;
|
|
while (*env) {
|
|
char *s = strchr(*env, '=');
|
|
ary_push(ary, str_taint(str_new2(s+1)));
|
|
env++;
|
|
}
|
|
return ary;
|
|
}
|
|
|
|
static VALUE
|
|
env_each_value(hash)
|
|
VALUE hash;
|
|
{
|
|
return ary_each(env_values());
|
|
}
|
|
|
|
static VALUE
|
|
env_each(hash)
|
|
VALUE hash;
|
|
{
|
|
VALUE ary = env_keys();
|
|
VALUE *ptr = RARRAY(ary)->ptr;
|
|
int len = RARRAY(ary)->len;
|
|
|
|
while (len--) {
|
|
VALUE val = f_getenv(Qnil, *ptr);
|
|
if (!NIL_P(val)) {
|
|
rb_yield(assoc_new(*ptr, val));
|
|
}
|
|
ptr++;
|
|
}
|
|
return hash;
|
|
}
|
|
|
|
static VALUE
|
|
env_delete_if()
|
|
{
|
|
VALUE ary = env_keys();
|
|
VALUE *ptr = RARRAY(ary)->ptr;
|
|
int len = RARRAY(ary)->len;
|
|
|
|
while (len--) {
|
|
VALUE val = f_getenv(Qnil, *ptr);
|
|
if (!NIL_P(val)) {
|
|
if (RTEST(rb_yield(assoc_new(*ptr, val)))) {
|
|
env_delete(Qnil, *ptr);
|
|
}
|
|
}
|
|
ptr++;
|
|
}
|
|
return envtbl;
|
|
}
|
|
|
|
static VALUE
|
|
env_to_s()
|
|
{
|
|
return str_new2("ENV");
|
|
}
|
|
|
|
static VALUE
|
|
env_to_a()
|
|
{
|
|
char **env;
|
|
VALUE ary = ary_new();
|
|
|
|
env = environ;
|
|
while (*env) {
|
|
char *s = strchr(*env, '=');
|
|
ary_push(ary, assoc_new(str_taint(str_new(*env, s-*env)),
|
|
str_taint(str_new2(s+1))));
|
|
env++;
|
|
}
|
|
return ary;
|
|
}
|
|
|
|
static VALUE
|
|
env_none()
|
|
{
|
|
return Qnil;
|
|
}
|
|
|
|
static VALUE
|
|
env_size()
|
|
{
|
|
int i;
|
|
|
|
for(i=0; environ[i]; i++)
|
|
;
|
|
return INT2FIX(i);
|
|
}
|
|
|
|
static VALUE
|
|
env_empty_p()
|
|
{
|
|
if (environ[0] == 0) return TRUE;
|
|
return FALSE;
|
|
}
|
|
|
|
static VALUE
|
|
env_has_key(env, key)
|
|
VALUE env, key;
|
|
{
|
|
if (TYPE(key) != T_STRING) return FALSE;
|
|
if (getenv(RSTRING(key)->ptr)) return TRUE;
|
|
return FALSE;
|
|
}
|
|
|
|
static VALUE
|
|
env_has_value(dmy, value)
|
|
VALUE dmy, value;
|
|
{
|
|
char **env;
|
|
VALUE ary;
|
|
|
|
if (TYPE(value) != T_STRING) return FALSE;
|
|
ary = ary_new();
|
|
env = environ;
|
|
while (*env) {
|
|
char *s = strchr(*env, '=')+1;
|
|
int len = strlen(s);
|
|
if (strncmp(s, RSTRING(value)->ptr, len) == 0) return TRUE;
|
|
env++;
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
static VALUE
|
|
env_indexes(argc, argv)
|
|
int argc;
|
|
VALUE *argv;
|
|
{
|
|
int i;
|
|
VALUE indexes = ary_new2(argc);
|
|
|
|
for (i=0;i<argc;i++) {
|
|
char *v = 0;
|
|
if (TYPE(argv[i]) == T_STRING) {
|
|
v = getenv(RSTRING(argv[i])->ptr);
|
|
}
|
|
if (v) {
|
|
RARRAY(indexes)->ptr[i] = str_new2(v);
|
|
}
|
|
else {
|
|
RARRAY(indexes)->ptr[i] = Qnil;
|
|
}
|
|
RARRAY(indexes)->len = i+1;
|
|
}
|
|
|
|
return indexes;
|
|
}
|
|
|
|
void
|
|
Init_Hash()
|
|
{
|
|
extern VALUE mEnumerable;
|
|
|
|
hash = rb_intern("hash");
|
|
|
|
cHash = rb_define_class("Hash", cObject);
|
|
|
|
rb_include_module(cHash, mEnumerable);
|
|
|
|
rb_define_singleton_method(cHash, "new", hash_s_new, -1);
|
|
rb_define_singleton_method(cHash, "[]", hash_s_create, -1);
|
|
|
|
rb_define_method(cHash,"clone", hash_clone, 0);
|
|
rb_define_method(cHash,"dup", hash_dup, 0);
|
|
rb_define_method(cHash,"rehash", hash_rehash, 0);
|
|
|
|
rb_define_method(cHash,"freeze", hash_freeze, 0);
|
|
rb_define_method(cHash,"frozen?",hash_frozen_p, 0);
|
|
|
|
rb_define_method(cHash,"to_a", hash_to_a, 0);
|
|
rb_define_method(cHash,"to_s", hash_to_s, 0);
|
|
rb_define_method(cHash,"inspect", hash_inspect, 0);
|
|
|
|
rb_define_method(cHash,"==", hash_equal, 1);
|
|
rb_define_method(cHash,"[]", hash_aref, 1);
|
|
rb_define_method(cHash,"[]=", hash_aset, 2);
|
|
rb_define_method(cHash,"indexes", hash_indexes, -1);
|
|
rb_define_method(cHash,"length", hash_length, 0);
|
|
rb_define_alias(cHash, "size", "length");
|
|
rb_define_method(cHash,"empty?", hash_empty_p, 0);
|
|
|
|
rb_define_method(cHash,"each", hash_each_pair, 0);
|
|
rb_define_method(cHash,"each_value", hash_each_value, 0);
|
|
rb_define_method(cHash,"each_key", hash_each_key, 0);
|
|
rb_define_method(cHash,"each_pair", hash_each_pair, 0);
|
|
|
|
rb_define_method(cHash,"keys", hash_keys, 0);
|
|
rb_define_method(cHash,"values", hash_values, 0);
|
|
|
|
rb_define_method(cHash,"shift", hash_shift, 0);
|
|
rb_define_method(cHash,"delete", hash_delete, 1);
|
|
rb_define_method(cHash,"delete_if", hash_delete_if, 0);
|
|
rb_define_method(cHash,"clear", hash_clear, 0);
|
|
rb_define_method(cHash,"invert", hash_invert, 0);
|
|
rb_define_method(cHash,"update", hash_update, 1);
|
|
|
|
rb_define_method(cHash,"include?", hash_has_key, 1);
|
|
rb_define_method(cHash,"has_key?", hash_has_key, 1);
|
|
rb_define_method(cHash,"has_value?", hash_has_value, 1);
|
|
rb_define_method(cHash,"key?", hash_has_key, 1);
|
|
rb_define_method(cHash,"value?", hash_has_value, 1);
|
|
|
|
envtbl = obj_alloc(cObject);
|
|
rb_extend_object(envtbl, mEnumerable);
|
|
|
|
rb_define_singleton_method(envtbl,"[]", f_getenv, 1);
|
|
rb_define_singleton_method(envtbl,"[]=", f_setenv, 2);
|
|
rb_define_singleton_method(envtbl,"each", env_each, 0);
|
|
rb_define_singleton_method(envtbl,"each_pair", env_each, 0);
|
|
rb_define_singleton_method(envtbl,"each_key", env_each_key, 0);
|
|
rb_define_singleton_method(envtbl,"each_value", env_each_value, 0);
|
|
rb_define_singleton_method(envtbl,"delete", env_delete_method, 1);
|
|
rb_define_singleton_method(envtbl,"delete_if", env_delete_if, 0);
|
|
rb_define_singleton_method(envtbl,"to_s", env_to_s, 0);
|
|
rb_define_singleton_method(envtbl,"rehash", env_none, 0);
|
|
rb_define_singleton_method(envtbl,"to_a", env_to_a, 0);
|
|
rb_define_singleton_method(envtbl,"indexes", env_indexes, -1);
|
|
rb_define_singleton_method(envtbl,"length", env_size, 0);
|
|
rb_define_singleton_method(envtbl,"empty?", env_empty_p, 0);
|
|
rb_define_singleton_method(envtbl,"keys", env_keys, 0);
|
|
rb_define_singleton_method(envtbl,"values", env_values, 0);
|
|
rb_define_singleton_method(envtbl,"include?", env_has_key, 1);
|
|
rb_define_singleton_method(envtbl,"has_key?", env_has_key, 1);
|
|
rb_define_singleton_method(envtbl,"has_value?", env_has_value, 1);
|
|
rb_define_singleton_method(envtbl,"key?", env_has_key, 1);
|
|
rb_define_singleton_method(envtbl,"value?", env_has_value, 1);
|
|
|
|
rb_define_global_const("ENV", envtbl);
|
|
}
|