そこで、JScript からバイナリ ファイルにアクセスする良い方法を紹介します。 VBScript からこのオブジェクトにアクセスする場合は、それを SWF ファイルに配置します。このオブジェクトは、Web サービスにファイルをアップロードするために Fury で使用されており、0 ～ 10 MB 領域のファイルに適しており、高速であることが証明されています。 /** これはかなりよく最適化されたオブジェクトで、
が Windows
* オペレーティング システム上の JScript からバイナリにアクセスできるようにします。
*ファイルの最後には、それがどのように機能するかを示すための小さなテストのセットがあります。
* adodb 2.5 以降が必要です。
*これは、ほとんどの 2000 マシンと XP 以降のすべての
* マシンで利用可能です。
*
*著作権: Alexander J. Turner 博士 - 全著作権所有。
*このコードは自由に使ってください
*コメント内に参照場所がある限り
*私が書いたものです。
function BinaryFile(name)
{
var adTypeBinary = 1
var adTypeText = 2
var adSaveCreateOverWrite = 2
// The trick - this is the 'old fassioned' not translation page
// It lest javascript use strings to act like raw octets
var codePage='437';
this.path=name;
var forward = new Array();
var backward = new Array();
// Note - for better performance I should preconvert these hex
// definitions to decimal - at some point :-) - AJT
forward['80'] = '00C7';
forward['81'] = '00FC';
forward['82'] = '00E9';
forward['83'] = '00E2';
forward['84'] = '00E4';
forward['85'] = '00E0';
forward['86'] = '00E5';
forward['87'] = '00E7';
forward['88'] = '00EA';
forward['89'] = '00EB';
forward['8A'] = '00E8';
forward['8B'] = '00EF';
forward['8C'] = '00EE';
forward['8D'] = '00EC';
forward['8E'] = '00C4';
forward['8F'] = '00C5';
forward['90'] = '00C9';
forward['91'] = '00E6';
forward['92'] = '00C6';
forward['93'] = '00F4';
forward['94'] = '00F6';
forward['95'] = '00F2';
forward['96'] = '00FB';
forward['97'] = '00F9';
forward['98'] = '00FF';
forward['99'] = '00D6';
forward['9A'] = '00DC';
forward['9B'] = '00A2';
forward['9C'] = '00A3';
forward['9D'] = '00A5';
forward['9E'] = '20A7';
forward['9F'] = '0192';
forward['A0'] = '00E1';
forward['A1'] = '00ED';
forward['A2'] = '00F3';
forward['A3'] = '00FA';
forward['A4'] = '00F1';
forward['A5'] = '00D1';
forward['A6'] = '00AA';
forward['A7'] = '00BA';
forward['A8'] = '00BF';
forward['A9'] = '2310';
forward['AA'] = '00AC';
forward['AB'] = '00BD';
forward['AC'] = '00BC';
forward['AD'] = '00A1';
forward['AE'] = '00AB';
forward['AF'] = '00BB';
forward['B0'] = '2591';
forward['B1'] = '2592';
forward['B2'] = '2593';
forward['B3'] = '2502';
forward['B4'] = '2524';
forward['B5'] = '2561';
forward['B6'] = '2562';
forward['B7'] = '2556';
forward['B8'] = '2555';
forward['B9'] = '2563';
forward['BA'] = '2551';
forward['BB'] = '2557';
forward['BC'] = '255D';
forward['BD'] = '255C';
forward['BE'] = '255B';
forward['BF'] = '2510';
forward['C0'] = '2514';
forward['C1'] = '2534';
forward['C2'] = '252C';
forward['C3'] = '251C';
forward['C4'] = '2500';
forward['C5'] = '253C';
forward['C6'] = '255E';
forward['C7'] = '255F';
forward['C8'] = '255A';
forward['C9'] = '2554';
forward['CA'] = '2569';
forward['CB'] = '2566';
forward['CC'] = '2560';
forward['CD'] = '2550';
forward['CE'] = '256C';
forward['CF'] = '2567';
forward['D0'] = '2568';
forward['D1'] = '2564';
forward['D2'] = '2565';
forward['D3'] = '2559';
forward['D4'] = '2558';
forward['D5'] = '2552';
forward['D6'] = '2553';
forward['D7'] = '256B';
forward['D8'] = '256A';
forward['D9'] = '2518';
forward['DA'] = '250C';
forward['DB'] = '2588';
forward['DC'] = '2584';
forward['DD'] = '258C';
forward['DE'] = '2590';
forward['DF'] = '2580';
forward['E0'] = '03B1';
forward['E1'] = '00DF';
forward['E2'] = '0393';
forward['E3'] = '03C0';
forward['E4'] = '03A3';
forward['E5'] = '03C3';
forward['E6'] = '00B5';
forward['E7'] = '03C4';
forward['E8'] = '03A6';
forward['E9'] = '0398';
forward['EA'] = '03A9';
forward['EB'] = '03B4';
forward['EC'] = '221E';
forward['ED'] = '03C6';
forward['EE'] = '03B5';
forward['EF'] = '2229';
forward['F0'] = '2261';
forward['F1'] = '00B1';
forward['F2'] = '2265';
forward['F3'] = '2264';
forward['F4'] = '2320';
forward['F5'] = '2321';
forward['F6'] = '00F7';
forward['F7'] = '2248';
forward['F8'] = '00B0';
forward['F9'] = '2219';
forward['FA'] = '00B7';
forward['FB'] = '221A';
forward['FC'] = '207F';
forward['FD'] = '00B2';
forward['FE'] = '25A0';
forward['FF'] = '00A0';
backward['C7'] = '80';
backward['FC'] = '81';
backward['E9'] = '82';
backward['E2'] = '83';
backward['E4'] = '84';
backward['E0'] = '85';
backward['E5'] = '86';
backward['E7'] = '87';
backward['EA'] = '88';
backward['EB'] = '89';
backward['E8'] = '8A';
backward['EF'] = '8B';
backward['EE'] = '8C';
backward['EC'] = '8D';
backward['C4'] = '8E';
backward['C5'] = '8F';
backward['C9'] = '90';
backward['E6'] = '91';
backward['C6'] = '92';
backward['F4'] = '93';
backward['F6'] = '94';
backward['F2'] = '95';
backward['FB'] = '96';
backward['F9'] = '97';
backward['FF'] = '98';
backward['D6'] = '99';
backward['DC'] = '9A';
backward['A2'] = '9B';
backward['A3'] = '9C';
backward['A5'] = '9D';
backward['20A7'] = '9E';
backward['192'] = '9F';
backward['E1'] = 'A0';
backward['ED'] = 'A1';
backward['F3'] = 'A2';
backward['FA'] = 'A3';
backward['F1'] = 'A4';
backward['D1'] = 'A5';
backward['AA'] = 'A6';
backward['BA'] = 'A7';
backward['BF'] = 'A8';
backward['2310'] = 'A9';
backward['AC'] = 'AA';
backward['BD'] = 'AB';
backward['BC'] = 'AC';
backward['A1'] = 'AD';
backward['AB'] = 'AE';
backward['BB'] = 'AF';
backward['2591'] = 'B0';
backward['2592'] = 'B1';
backward['2593'] = 'B2';
backward['2502'] = 'B3';
backward['2524'] = 'B4';
backward['2561'] = 'B5';
backward['2562'] = 'B6';
backward['2556'] = 'B7';
backward['2555'] = 'B8';
backward['2563'] = 'B9';
backward['2551'] = 'BA';
backward['2557'] = 'BB';
backward['255D'] = 'BC';
backward['255C'] = 'BD';
backward['255B'] = 'BE';
backward['2510'] = 'BF';
backward['2514'] = 'C0';
backward['2534'] = 'C1';
backward['252C'] = 'C2';
backward['251C'] = 'C3';
backward['2500'] = 'C4';
backward['253C'] = 'C5';
backward['255E'] = 'C6';
backward['255F'] = 'C7';
backward['255A'] = 'C8';
backward['2554'] = 'C9';
backward['2569'] = 'CA';
backward['2566'] = 'CB';
backward['2560'] = 'CC';
backward['2550'] = 'CD';
backward['256C'] = 'CE';
backward['2567'] = 'CF';
backward['2568'] = 'D0';
backward['2564'] = 'D1';
backward['2565'] = 'D2';
backward['2559'] = 'D3';
backward['2558'] = 'D4';
backward['2552'] = 'D5';
後方['2553'] = 'D6';
backward['256B'] = 'D7';
backward['256A'] = 'D8';
backward['2518'] = 'D9';
backward['250C'] = 'DA';
backward['2588'] = 'DB';
backward['2584'] = 'DC';
backward['258C'] = 'DD';
backward['2590'] = 'DE';
backward['2580'] = 'DF';
backward['3B1'] = 'E0';
backward['DF'] = 'E1';
backward['393'] = 'E2';
backward['3C0'] = 'E3';
backward['3A3'] = 'E4';
backward['3C3'] = 'E5';
backward['B5'] = 'E6';
backward['3C4'] = 'E7';
backward['3A6'] = 'E8';
backward['398'] = 'E9';
backward['3A9'] = 'EA';
backward['3B4'] = 'EB';
backward['221E'] = 'EC';
backward['3C6'] = 'ED';
backward['3B5'] = 'EE';
backward['2229'] = 'EF';
backward['2261'] = 'F0';
backward['B1'] = 'F1';
backward['2265'] = 'F2';
backward['2264'] = 'F3';
backward['2320'] = 'F4';
backward['2321'] = 'F5';
backward['F7'] = 'F6';
backward['2248'] = 'F7';
backward['B0'] = 'F8';
backward['2219'] = 'F9';
後方['B7'] = 'FA';
backward['221A'] = 'FB';
backward['207F'] = 'FC';
backward['B2'] = 'FD';
backward['25A0'] = 'FE';
backward['A0'] = 'FF';
var hD="0123456789ABCDEF";
this.d2h = function(d)
{
var h = hD.substr(d&15,1);
while(d>15) {d>>=4;h=hD.substr(d&15,1) h;}
return h;
}
this.h2d = function(h)
{
return parseInt(h,16);
}
this.WriteAll = function(what)
{
//ストリームオブジェクトの作成
var BinaryStream = WScript.CreateObject("ADODB.Stream");
//ストリームのタイプを指定します - 騙して文字列を取得しますが、バイナリが「好き」です
BinaryStream.Type = adTypeText;
BinaryStream.CharSet = '437';
//ストリームを開きます
BinaryStream.Open();
// ストリームに書き込みます
BinaryStream.WriteText(this.Forward437(what));
// 文字列を ディスクに書き込みます
BinaryStream.SaveToFile(this.path, adSaveCreateOverWrite);
// クリア
BinaryStream.Close();
}
this.ReadAll = function()
{
//ストリームオブジェクトの作成 - ADO 2.5 またはそれ以上のものが必要
var BinaryStream = WScript.CreateObject( 「ADODB.ストリーム」 )
//ストリーム タイプを指定します - チートして文字列を取得しますが、バイナリが「好き」です
BinaryStream.Type = adTypeText;
BinaryStream.CharSet = codePage;
//ストリームを開きます
BinaryStream.Open();
//ディスクからファイルデータをロードして、オブジェクトをストリームします
BinaryStream.LoadFromFile(this.path);
//ストリームを開き、オブジェクトからバイナリ「文字列」を取得します
var what = BinaryStream.ReadText;
// クリーンアップ
BinaryStream.Close();
これを返します。Backward437(what);
}
/* オクテット番号をコードページ 437 文字コードに変換する */
this.Forward437 = function(inString)
var encArray = 新しい配列() ;
var tmp='';
var i=0;
var c=0;
var l=inString.length;
var cc;
var h;
for(;i
c ;
if(c==128)
{
encArray.push(tmp);
tmp='';
c=0;
}
cc=inString.charCodeAt(i);
if(cc {
tmp =String.fromCharCode(cc);
}
else
{
h=this.d2h(cc);
h=forward['' h];
tmp =String.fromCharCode(this.h2d(h));
}
}
if(tmp!='')
{
encArray.push(tmp);
}
// このループでは、
// 配列要素が 1 つだけになるまで、このループでプログレッシブに連結されます。
var ar2=new Array();
for(;encArray.length>1;)
{
var l=encArray.length;
for(var c=0;c
if(c 1==l)
{
ar2.push(encArray[c]);
else
{
ar2.push('' encArray[c] encArray[c 1]);
}
encArray=ar2;
ar2=new Array();
}
return encArray[0];
}
/* コードページ 437 の文字コードをオクテット番号に変換します*/
this.Backward437 = function(inString)
{
var encArray = new Array();
var tmp='';
var i=0;
var c=0;
var l=inString.length;
var cc;
var h;
for(;i
c ;
if(c==128)
{
encArray.push(tmp);
tmp='';
c=0;
}
cc=inString.charCodeAt(i);
if(cc {
tmp =String.fromCharCode(cc);
}
else
{
h=this.d2h(cc);
h=backward['' h];
tmp =String.fromCharCode(this.h2d(h));
}
}
if(tmp!='')
{
encArray.push(tmp);
}
// このループでは、
// 配列要素が 1 つだけになるまで、このループでプログレッシブに連結されます。
var ar2=new Array();
for(;encArray.length>1;)
{
var l=encArray.length;
for(var c=0;c
if(c 1==l)
{
ar2.push(encArray[c]);
else
{
ar2.push('' encArray[c] encArray[c 1]);
}
encArray=ar2;
ar2=new Array();
}
return encArray[0];
}
}
// 使用方法：
/*
var bf0=new BinaryFile();
var crFolder = 'C:/Temp/cr'
var bf1=new BinaryFile(crFolder "/PCDV0026.JPG");
var bf2=new BinaryFile(crFolder "/PCDV0026_.JPG");
bf2.WriteAll(bf1.ReadAll());
*/
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