// Replace the parts you can replace with this and this_model .
// Get Expression Driven Parameters
// Obtain an object that is the owner of that parameter
// Always filter on Expression as it is already filtered by Expression
// this gets the contents of Expression with this and next

// this var
// this_model

//---------------------------------------------
// これ。このModel。　this. this Model.
// エクスプレッションのあるオブジェクトを選んで実行。　
// this や this_model に置換できる部分を置換

OpenUndo( "これ。このModel。" );
var oObjects = Selection;
for ( var i=0; i<oObjects.count; i++ )
{
    var oObj = oObjects(i);
    var oAnimParams = oObj.NodeAnimatedParameters(siExpressionSource);//Expression駆動のパラメータ取得
    for ( var j=0; j<oAnimParams.count; j++)
    {
        var oParam = oAnimParams(j);
        Hage( oParam );
    }
}
CloseUndo();

function Hage( oParam )
{
    var oObject = oParam.Parent3DObject; //そのパラメータの所有者であるオブジェクト取得
    
    var oExpr = oParam.Source; //Expression駆動で既にフィルタ済みなのでSourceで必ず Expression オブジェクトが取得される
    var oDefinitionParam = oExpr.Parameters( "Definition" );//なんか知らんがこれと次の１行でExpressionの中身を取得
    ExprDif = oDefinitionParam.Value;
    
    // this
    var RE1 = new RegExp( oObject.FullName, "gi" );
    NewExprDif1 = ExprDif.replace( RE1, "this" );
    
    // this_model
    var oModel = oObject.Model;
    var RE2 = new RegExp( oModel.Name, "gi" );
    NewExprDif2 = NewExprDif1.replace( RE2, "this_model" );
    
    if ( ExprDif.toLowerCase() != NewExprDif2.toLowerCase() )
    {
        oDefinitionParam.Value = NewExprDif2;
        Result = oDefinitionParam.Value;
        if ( ExprDif.toLowerCase() == Result.toLowerCase() ) Logmessage( "なぜか変わってねえっス : " + oParam.Fullname, siWarning );
        else
        {
            Logmessage( "置換しますた。 : " + oParam.Fullname );
            Logmessage( " " + ExprDif + " --> " + NewExprDif2 );
        }
    }
}