C++ RSTRING函数代码示例

/**
 * call-seq:
 *    uc.resolve("/someuri") -> "/someuri", "", handler
 *    uc.resolve("/someuri/pathinfo") -> "/someuri", "/pathinfo", handler
 *    uc.resolve("/notfound/orhere") -> nil, nil, nil
 *    uc.resolve("/") -> "/", "/", handler  # if uc.register("/", handler)
 *    uc.resolve("/path/from/root") -> "/", "/path/from/root", handler  # if uc.register("/", handler) 
 * 
 * Attempts to resolve either the whole URI or at the longest prefix, returning
 * the prefix (as script_info), path (as path_info), and registered handler
 * (usually an HttpHandler).  If it doesn't find a handler registered at the longest
 * match then it returns nil,nil,nil.
 *
 * Because the resolver uses a trie you are able to register a handler at *any* character
 * in the URI and it will be handled as long as it's the longest prefix.  So, if you 
 * registered handler #1 at "/something/lik", and #2 at "/something/like/that", then a
 * a search for "/something/like" would give you #1.  A search for "/something/like/that/too"
 * would give you #2.
 * 
 * This is very powerful since it means you can also attach handlers to parts of the ; 
 * (semi-colon) separated path params, any part of the path, use off chars, anything really.
 * It also means that it's very efficient to do this only taking as long as the URI has
 * characters.
 *
 * A slight modification to the CGI 1.2 standard is given for handlers registered to "/".
 * CGI expects all CGI scripts to be at some script path, so it doesn't really say anything
 * about a script that handles the root.  To make this work, the resolver will detect that
 * the requested handler is at "/", and return that for script_name, and then simply return
 * the full URI back as path_info.
 *
 * It expects strings with no embedded '\0' characters.  Don't try other string-like stuff yet.
 */
VALUE URIClassifier_resolve(VALUE self, VALUE uri)
{
  void *handler = NULL;
  int pref_len = 0;
  struct tst *tst = NULL;
  VALUE result;
  unsigned char *uri_str = NULL;

  DATA_GET(self, struct tst, tst);
  uri_str = (unsigned char *)StringValueCStr(uri);

  handler = tst_search(uri_str, tst, &pref_len);

  result = rb_ary_new();

  if(handler) {
    rb_ary_push(result, rb_str_substr (uri, 0, pref_len));
    if(pref_len == 1 && uri_str[0] == '/') {
      rb_ary_push(result, uri);
    } else {
      rb_ary_push(result, rb_str_substr(uri, pref_len, RSTRING(uri)->len));
    }

    rb_ary_push(result, (VALUE)handler);
  } else {
    rb_ary_push(result, Qnil);
    rb_ary_push(result, Qnil);
    rb_ary_push(result, Qnil);
  }

  return result;
}

extern "C" VALUE signer_sign(VALUE self, VALUE szIn)
{
    VALUE ret;
    ret = rb_str_new2("");

    Signer *pSign;

    Data_Get_Struct(self, Signer, pSign);    
    
    if(NIL_P(szIn)) rb_raise(rb_eArgError, "nil for sign");

    if (pSign)
    {   
      szptr szSign;
			if (pSign->Sign(RSTRING(szIn)->ptr, szSign))
			{
		 	    ret = rb_str_new2((char *)(const char *)szSign);
			}
    }

    int err_no = pSign->ErrorCode();
    if (err_no){
			char err[20];
			sprintf(err, "Signer error: %d", err_no);
			rb_raise(rb_eStandardError, err);
    }

   return ret;
}

VALUE string_spec_RSTRING_ptr_assign_call(VALUE self, VALUE str) {
  char *ptr = RSTRING(str)->ptr;

  ptr[1] = 'x';
  rb_str_concat(str, rb_str_new2("d"));
  return str;
}

// ----------------------------------------------------------------------------
VALUE  RubyClassHandler::SendKeyMacro(VALUE self, VALUE rMacroString)
// ----------------------------------------------------------------------------
{//static called from Ruby

    // send a Ruby macro string to our macro processor
    // eg., "SendKeyMacro("{LSHIFT DOWN}{MBUTTON DOWN}"

    This->m_macroProcessIsBusy = true;

    VALUE str = StringValue(rMacroString);
    char* p = RSTRING(str)->ptr;
    wxString macroKeys(p);
    #if defined(LOGGING)
    //LOGIT( _T("RubyClassHandler:SendKeyMacro[%s]"), macroKeys.c_str());
    #endif


    // Make sure keys go to main window (not Ruby console or other foreground)
    HWND hRubyConsole = ::FindWindow(_T("#32770"), _T("Ruby Console"));
    if (hRubyConsole) {;}
    ::EnableWindow(g_hWndSketchUp,TRUE);
    ::SetFocus(g_hWndSketchUp);
    ::SetForegroundWindow(g_hWndSketchUp);

    This->m_pMacroRunner->SendMacroString( macroKeys, wxTheApp->GetTopWindow() );
    ::SetFocus(g_hWndSketchUp);
    This->m_macroProcessIsBusy = false;

    return true;
}

static VALUE
bug_str_s_cstr_noembed(VALUE self, VALUE str)
{
    VALUE str2 = rb_str_new(NULL, 0);
    long capacity = RSTRING_LEN(str) + TERM_LEN(str);
    char *buf = ALLOC_N(char, capacity);
    Check_Type(str, T_STRING);
    FL_SET((str2), STR_NOEMBED);
    memcpy(buf, RSTRING_PTR(str), capacity);
    RBASIC(str2)->flags &= ~RSTRING_EMBED_LEN_MASK;
    RSTRING(str2)->as.heap.aux.capa = capacity;
    RSTRING(str2)->as.heap.ptr = buf;
    RSTRING(str2)->as.heap.len = RSTRING_LEN(str);
    TERM_FILL(RSTRING_END(str2), TERM_LEN(str));
    return str2;
}

static VALUE method_create(VALUE self, VALUE path, VALUE value, VALUE flags) {
  char realpath[10240];

  Check_Type(path, T_STRING);
  Check_Type(value, T_STRING);
  Check_Type(flags, T_FIXNUM);

  FETCH_DATA_PTR(self, zk);

  check_errors(zoo_create(zk->zh, RSTRING(path)->ptr, 
                          RSTRING(value)->ptr, RSTRING(value)->len,
			  &ZOO_OPEN_ACL_UNSAFE, FIX2INT(flags), 
                          realpath, sizeof(realpath)));

  return rb_str_new2(realpath);
}

VALUE
rb_yp_update(VALUE self, VALUE domain, VALUE map, VALUE ypop, VALUE inkey, VALUE inval)
{
    int res;

    if( domain == Qnil ) {
        domain = rb_yp_get_default_domain(self);
    };

    res = yp_update(STR2CSTR(domain), STR2CSTR(map), FIX2INT(ypop),
                    STR2CSTR(inkey), RSTRING(inkey)->len,
                    STR2CSTR(inval), RSTRING(inval)->len);
    rb_yp_check_yperr(res);

    return INT2NUM(res);
};

VALUE
rb_yp_next(VALUE self, VALUE domain, VALUE map, VALUE inkey)
{
    char *key, *val;
    int keylen, vallen;
    int res;
    VALUE vkey, vval;

    if( domain == Qnil ) {
        domain = rb_yp_get_default_domain(self);
    };

    res = yp_next(STR2CSTR(domain), STR2CSTR(map),
                  STR2CSTR(inkey), RSTRING(inkey)->len,
                  &key, &keylen, &val, &vallen);
    rb_yp_check_yperr(res);

    if( keylen > 0 ) {
        vkey = rb_tainted_str_new(key, keylen);
    }
    else {
        vkey = Qnil;
    };

    if( vallen > 0 ) {
        vval = rb_tainted_str_new(val, vallen);
    }
    else {
        vval = Qnil;
    };

    return rb_assoc_new(vkey, vval);
};

void
rb_invalid_str(const char *str, const char *type)
{
    VALUE s = rb_str_inspect(rb_str_new2(str));

    rb_raise(rb_eArgError, "invalid value for %s: %s", type, RSTRING(s)->ptr);
}

static VALUE rbreg_get(VALUE, VALUE rname) {
    lwc::Registry *reg = lwc::Registry::Instance();
    if (!reg) {
        rb_raise(rb_eRuntimeError, "lwc::Registry has not yet been initialized");
    }
    VALUE sname = rb_check_string_type(rname);
    if (NIL_P(sname)) {
        rb_raise(rb_eTypeError, "RLWC::Registry.get expects a string as argument");
    }
    char *name = RSTRING(sname)->ptr;
    lwc::Object *obj = reg->get(name);
    if (!obj) {
        return Qnil;
    } else {
        VALUE rv = Qnil;
        //if (!strcmp(obj->getLoaderName(), "rbloader")) {
        //  rv = ((Object*)obj)->self();
        //
        //} else {
        rv = rb_funcall2(cLWCObject, rb_intern("new"), 0, NULL);
        SetObjectPointer(rv, obj);
        //}
        return rv;
    }
}

// Create a new destination endpoint
static VALUE t_create_destination(VALUE self, VALUE client_instance, VALUE destination_name)
{
    MIDIEndpointRef destination;
    
    RbMIDIClient* client;
    Data_Get_Struct(client_instance, RbMIDIClient, client);
    
    CFStringRef destination_str = CFStringCreateWithCString(kCFAllocatorDefault, RSTRING(destination_name)->ptr, kCFStringEncodingASCII);

    MIDIDestinationCreate(client->client, destination_str, RbMIDIReadProc, NULL, &destination);

    VALUE destination_instance = rb_class_new_instance(0, 0, cEndpoint);
    if( destination_instance == Qnil )
    {
        free_objects();
        rb_fatal("Couldn't create an instance of Endpoint!");
    }
    
    RbEndpoint* endpoint_struct;
    Data_Get_Struct(destination_instance, RbEndpoint, endpoint_struct);
    
    endpoint_struct->endpoint = destination;
    
    return destination_instance;
}

// Create a new source endpoint
static VALUE t_create_source(VALUE self, VALUE client_instance, VALUE source_name)
{
    MIDIEndpointRef source;
    
    RbMIDIClient* client;
    Data_Get_Struct(client_instance, RbMIDIClient, client);
    
    CFStringRef source_str = CFStringCreateWithCString(kCFAllocatorDefault, RSTRING(source_name)->ptr, kCFStringEncodingASCII);

    MIDISourceCreate(client->client, source_str, &source);

    VALUE source_instance = rb_class_new_instance(0, 0, cEndpoint);
    if( source_instance == Qnil )
    {
        free_objects();
        rb_fatal("Couldn't create an instance of Endpoint!");
    }
    
    RbEndpoint* endpoint_struct;
    Data_Get_Struct(source_instance, RbEndpoint, endpoint_struct);
    
    endpoint_struct->endpoint = source;
    
    return source_instance;
}

void
mrb_irep_free(mrb_state *mrb, mrb_irep *irep)
{
  size_t i;

  if (!(irep->flags & MRB_ISEQ_NO_FREE))
    mrb_free(mrb, irep->iseq);
  for (i=0; i<irep->plen; i++) {
    if (mrb_type(irep->pool[i]) == MRB_TT_STRING) {
      mrb_gc_free_str(mrb, RSTRING(irep->pool[i]));
      mrb_free(mrb, mrb_obj_ptr(irep->pool[i]));
    }
#ifdef MRB_WORD_BOXING
    else if (mrb_type(irep->pool[i]) == MRB_TT_FLOAT) {
      mrb_free(mrb, mrb_obj_ptr(irep->pool[i]));
    }
#endif
  }
  mrb_free(mrb, irep->pool);
  mrb_free(mrb, irep->syms);
  for (i=0; i<irep->rlen; i++) {
    mrb_irep_decref(mrb, irep->reps[i]);
  }
  mrb_free(mrb, irep->reps);
  mrb_free(mrb, irep->lv);
  mrb_free(mrb, (void *)irep->filename);
  mrb_free(mrb, irep->lines);
  mrb_debug_info_free(mrb, irep->debug_info);
  mrb_free(mrb, irep);
}

VALUE rCORBA_Request_add_inout_arg(int _argc, VALUE *_argv, VALUE self)
{
  VALUE arg_name = Qnil;
  VALUE arg_rtc = Qnil;
  VALUE arg_rval = Qnil;

  // extract and check arguments
  rb_scan_args(_argc, _argv, "21", &arg_rtc, &arg_rval, &arg_name);
  r2tao_check_type(arg_rtc, r2tao_cTypecode);
  if (arg_name!=Qnil)
    Check_Type(arg_name, T_STRING);

  CORBA::Request_ptr _req =  r2tao_Request_r2t(self);
  R2TAO_TRY
  {
    CORBA::ORB_var _orb = _req->target ()->_get_orb ();
  
    CORBA::TypeCode_var _arg_tc = r2tao_Typecode_r2t (arg_rtc, _orb. in());
    char *_arg_name = (arg_name!=Qnil) ? RSTRING (arg_name)->ptr : 0;
    // add INOUT arg
    CORBA::Any& _arg = (arg_name!=Qnil) ?
          _req->add_inout_arg (_arg_name) : _req->add_inout_arg ();
    // assign value to Any
    if (arg_rval!=Qnil)
      r2tao_Typecode_Ruby2Any(_arg, _arg_tc.in (), arg_rval, _orb.in ());
  }
  R2TAO_CATCH;
  return ULONG2NUM (_req->arguments ()->count ());
}

VALUE string_spec_RSTRING_ptr_assign_funcall(VALUE self, VALUE str) {
  char *ptr = RSTRING(str)->ptr;

  ptr[1] = 'x';
  rb_funcall(str, rb_intern("<<"), 1, rb_str_new2("e"));
  return str;
}