const char * jsconcatcode = 
"\n"
 "\n"
 "\n"
 "if ( ( typeof  DBCollection ) == \"undefined\" ){\n"
 "DBCollection = function( mongo , db , shortName , fullName ){\n"
 "this._mongo = mongo;\n"
 "this._db = db;\n"
 "this._shortName = shortName;\n"
 "this._fullName = fullName;\n"
 "\n"
 "this.verify();\n"
 "}\n"
 "}\n"
 "\n"
 "DBCollection.prototype.verify = function(){\n"
 "assert( this._fullName , \"no fullName\" );\n"
 "assert( this._shortName , \"no shortName\" );\n"
 "assert( this._db , \"no db\" );\n"
 "\n"
 "assert.eq( this._fullName , this._db._name + \".\" + this._shortName , \"name mismatch\" );\n"
 "\n"
 "assert( this._mongo , \"no mongo in DBCollection\" );\n"
 "}\n"
 "\n"
 "DBCollection.prototype.getName = function(){\n"
 "return this._shortName;\n"
 "}\n"
 "\n"
 "DBCollection.prototype.help = function(){\n"
 "print(\"DBCollection help\");\n"
 "print(\"\\tdb.foo.getDB() get DB object associated with collection\");\n"
 "print(\"\\tdb.foo.findOne(...)\");\n"
 "print(\"\\tdb.foo.find(...)\");\n"
 "print(\"\\tdb.foo.find(...).sort(...)\");\n"
 "print(\"\\tdb.foo.find(...).limit(n)\");\n"
 "print(\"\\tdb.foo.find(...).skip(n)\");\n"
 "print(\"\\tdb.foo.find(...).count()\");\n"
 "print(\"\\tdb.foo.count()\");\n"
 "print(\"\\tdb.foo.save(obj)\");\n"
 "print(\"\\tdb.foo.update(query, object[, upsert_bool])\");\n"
 "print(\"\\tdb.foo.ensureIndex(keypattern)\");\n"
 "print(\"\\tdb.foo.dropIndexes()\");\n"
 "print(\"\\tdb.foo.dropIndex(name)\");\n"
 "print(\"\\tdb.foo.getIndexes()\");\n"
 "print(\"\\tdb.foo.drop() drop the collection\");\n"
 "print(\"\\tdb.foo.validate() - SLOW\");\n"
 "print(\"\\tdb.foo.stats() - stats about the collection - SLOW\");\n"
 "print(\"\\tdb.foo.dataSize() - size in bytes of all the data - SLOW\");\n"
 "print(\"\\tdb.foo.totalIndexSize() - size in bytes of all the indexes - SLOW\");\n"
 "}\n"
 "\n"
 "DBCollection.prototype.getFullName = function(){\n"
 "return this._fullName;\n"
 "}\n"
 "DBCollection.prototype.getDB = function(){\n"
 "return this._db;\n"
 "}\n"
 "\n"
 "DBCollection.prototype._dbCommand = function( cmd ){\n"
 "return this._db._dbCommand( cmd );\n"
 "}\n"
 "\n"
 "DBCollection.prototype._massageObject = function( q ){\n"
 "if ( ! q )\n"
 "return {};\n"
 "\n"
 "var type = typeof q;\n"
 "\n"
 "if ( type == \"function\" )\n"
 "return { $where : q };\n"
 "\n"
 "if ( q.isObjectId )\n"
 "return { _id : q };\n"
 "\n"
 "if ( type == \"object\" )\n"
 "return q;\n"
 "\n"
 "if ( type == \"string\" ){\n"
 "if ( q.length == 24 )\n"
 "return { _id : q };\n"
 "\n"
 "return { $where : q };\n"
 "}\n"
 "\n"
 "throw \"don't know how to massage : \" + type;\n"
 "\n"
 "}\n"
 "\n"
 "DBCollection.prototype._validateForStorage = function( o ){\n"
 "for ( var k in o ){\n"
 "if ( k.indexOf( \".\" ) >= 0 )\n"
 "throw \"can't have . in field names [\" + k + \"]\" ;\n"
 "}\n"
 "}\n"
 "\n"
 "DBCollection.prototype.find = function( query , fields , limit , skip ){\n"
 "return new DBQuery( this._mongo , this._db , this ,\n"
 "this._fullName , this._massageObject( query ) , fields , limit , skip );\n"
 "}\n"
 "\n"
 "DBCollection.prototype.findOne = function( query , fields ){\n"
 "var cursor = this._mongo.find( this._fullName , this._massageObject( query ) || {} , fields , -1 , 0  );\n"
 "if ( ! cursor.hasNext() )\n"
 "return null;\n"
 "var ret = cursor.next();\n"
 "if ( cursor.hasNext() ) throw \"findOne has more than 1 result!\";\n"
 "if ( ret.$err )\n"
 "throw \"error \" + tojson( ret );\n"
 "return ret;\n"
 "}\n"
 "\n"
 "DBCollection.prototype.insert = function( obj ){\n"
 "if ( ! obj )\n"
 "throw \"no object!\";\n"
 "this._validateForStorage( obj );\n"
 "return this._mongo.insert( this._fullName , obj );\n"
 "}\n"
 "\n"
 "DBCollection.prototype.remove = function( t ){\n"
 "this._mongo.remove( this._fullName , this._massageObject( t ) );\n"
 "}\n"
 "\n"
 "DBCollection.prototype.update = function( query , obj , upsert ){\n"
 "assert( query , \"need a query\" );\n"
 "assert( obj , \"need an object\" );\n"
 "return this._mongo.update( this._fullName , query , obj , upsert ? true : false );\n"
 "}\n"
 "\n"
 "DBCollection.prototype.save = function( obj ){\n"
 "if ( typeof( obj._id ) == \"undefined\" ){\n"
 "obj._id = new ObjectId();\n"
 "return this.insert( obj );\n"
 "}\n"
 "else {\n"
 "return this.update( { _id : obj._id } , obj , true );\n"
 "}\n"
 "}\n"
 "\n"
 "DBCollection.prototype._genIndexName = function( keys ){\n"
 "var name = \"\";\n"
 "for ( var k in keys ){\n"
 "if ( name.length > 0 )\n"
 "name += \"_\";\n"
 "name += k + \"_\";\n"
 "\n"
 "var v = keys[k];\n"
 "if ( typeof v == \"number\" )\n"
 "name += v;\n"
 "}\n"
 "return name;\n"
 "}\n"
 "\n"
 "DBCollection.prototype._indexSpec = function( keys, options ) {\n"
 "var name;\n"
 "var unique = false;\n"
 "if ( !isObject( options ) ) {\n"
 "options = [ options ];\n"
 "}\n"
 "for( var i = 0; i < options.length; ++i ) {\n"
 "var o = options[ i ];\n"
 "if ( isString( o ) ) {\n"
 "name = o;\n"
 "} else if ( typeof( o ) == \"boolean\" ) {\n"
 "unique = o;\n"
 "}\n"
 "}\n"
 "name = name || this._genIndexName( keys );\n"
 "var ret = { ns : this._fullName , key : keys , name : name };\n"
 "if ( unique == true ) {\n"
 "ret.unique = true;\n"
 "}\n"
 "return ret;\n"
 "}\n"
 "\n"
 "DBCollection.prototype.createIndex = function( keys , options ){\n"
 "var o = this._indexSpec( keys, options );\n"
 "this._db.getCollection( \"system.indexes\" ).insert( o );\n"
 "}\n"
 "\n"
 "DBCollection.prototype.ensureIndex = function( keys , options ){\n"
 "var name = this._indexSpec( keys, options ).name;\n"
 "this._indexCache = this._indexCache || {};\n"
 "if ( this._indexCache[ name ] ){\n"
 "return false;\n"
 "}\n"
 "\n"
 "this.createIndex( keys , options );\n"
 "this._indexCache[name] = true;\n"
 "return true;\n"
 "}\n"
 "\n"
 "DBCollection.prototype.resetIndexCache = function(){\n"
 "this._indexCache = {};\n"
 "}\n"
 "\n"
 "DBCollection.prototype.reIndex = function(){\n"
 "var specs = this.getIndexSpecs();\n"
 "this.dropIndexes();\n"
 "for ( var i = 0; i < specs.length; ++i ){\n"
 "this.ensureIndex( specs[i].key, [ specs[i].unique, specs[i].name ] );\n"
 "}\n"
 "}\n"
 "\n"
 "DBCollection.prototype.dropIndexes = function(){\n"
 "this.resetIndexCache();\n"
 "\n"
 "var res = this._db.runCommand( { deleteIndexes: this.getName(), index: \"*\" } );\n"
 "assert( res , \"no result from dropIndex result\" );\n"
 "if ( res.ok )\n"
 "return res;\n"
 "\n"
 "if ( res.errmsg.match( /not found/ ) )\n"
 "return res;\n"
 "\n"
 "throw \"error dropping indexes : \" + tojson( res );\n"
 "}\n"
 "\n"
 "\n"
 "DBCollection.prototype.drop = function(){\n"
 "this.resetIndexCache();\n"
 "return this._db.runCommand( { drop: this.getName() } );\n"
 "}\n"
 "\n"
 "DBCollection.prototype.validate = function() {\n"
 "var res = this._db.runCommand( { validate: this.getName() } );\n"
 "\n"
 "res.valid = false;\n"
 "\n"
 "if ( res.result ){\n"
 "var str = \"-\" + tojson( res.result );\n"
 "res.valid = ! ( str.match( /exception/ ) || str.match( /corrupt/ ) );\n"
 "\n"
 "var p = /lastExtentSize:(\\d+)/;\n"
 "var r = p.exec( str );\n"
 "if ( r ){\n"
 "res.lastExtentSize = Number( r[1] );\n"
 "}\n"
 "}\n"
 "\n"
 "return res;\n"
 "}\n"
 "\n"
 "DBCollection.prototype.getIndexes = function(){\n"
 "return this.getDB().getCollection( \"system.indexes\" ).find( { ns : this.getFullName() } ).toArray();\n"
 "}\n"
 "\n"
 "DBCollection.prototype.getIndices = DBCollection.prototype.getIndexes;\n"
 "DBCollection.prototype.getIndexSpecs = DBCollection.prototype.getIndexes;\n"
 "\n"
 "DBCollection.prototype.getIndexKeys = function(){\n"
 "return this.getIndexes().map(\n"
 "function(i){\n"
 "return i.key;\n"
 "}\n"
 ");\n"
 "}\n"
 "\n"
 "\n"
 "DBCollection.prototype.count = function( x ){\n"
 "return this.find( x ).count();\n"
 "}\n"
 "\n"
 "/**\n"
 "*  Drop free lists. Normally not used.\n"
 "*  Note this only does the collection itself, not the namespaces of its indexes (see cleanAll).\n"
 "*/\n"
 "DBCollection.prototype.clean = function() {\n"
 "return this._dbCommand( { clean: this.getName() } );\n"
 "}\n"
 "\n"
 "\n"
 "\n"
 "/**\n"
 "* <p>Drop a specified index.</p>\n"
 "*\n"
 "* <p>\n"
 "* Name is the name of the index in the system.indexes name field. (Run db.system.indexes.find() to\n"
 "*  see example data.)\n"
 "* </p>\n"
 "*\n"
 "* <p>Note :  alpha: space is not reclaimed </p>\n"
 "* @param {String} name of index to delete.\n"
 "* @return A result object.  result.ok will be true if successful.\n"
 "*/\n"
 "DBCollection.prototype.dropIndex =  function(index) {\n"
 "assert(index , \"need to specify index to dropIndex\" );\n"
 "\n"
 "if ( ! isString( index ) && isObject( index ) )\n"
 "index = this._genIndexName( index );\n"
 "\n"
 "var res = this._dbCommand( { deleteIndexes: this.getName(), index: index } );\n"
 "this.resetIndexCache();\n"
 "return res;\n"
 "}\n"
 "\n"
 "DBCollection.prototype.copyTo = function( newName ){\n"
 "return this.getDB().eval(\n"
 "function( collName , newName ){\n"
 "var from = db[collName];\n"
 "var to = db[newName];\n"
 "to.ensureIndex( { _id : 1 } );\n"
 "var count = 0;\n"
 "\n"
 "var cursor = from.find();\n"
 "while ( cursor.hasNext() ){\n"
 "var o = cursor.next();\n"
 "count++;\n"
 "to.save( o );\n"
 "}\n"
 "\n"
 "return count;\n"
 "} , this.getName() , newName\n"
 ");\n"
 "}\n"
 "\n"
 "DBCollection.prototype.getCollection = function( subName ){\n"
 "return this._db.getCollection( this._shortName + \".\" + subName );\n"
 "}\n"
 "\n"
 "DBCollection.prototype.stats = function(){\n"
 "var res = this.validate().result;\n"
 "var p = /\\b(\\w+)\\??: *(\\d+)\\b/g;\n"
 "var m;\n"
 "\n"
 "var o = {};\n"
 "while ( m = p.exec( res ) ){\n"
 "o[ m[1] ] = m[2];\n"
 "}\n"
 "return o;\n"
 "}\n"
 "\n"
 "DBCollection.prototype.dataSize = function(){\n"
 "return parseInt( this.stats().datasize );\n"
 "}\n"
 "\n"
 "DBCollection.prototype.totalIndexSize = function(){\n"
 "var total = 0;\n"
 "var mydb = this._db;\n"
 "var shortName = this._shortName;\n"
 "this.getIndexes().forEach(\n"
 "function( spec ){\n"
 "var coll = mydb.getCollection( shortName + \".$\" + spec.name );\n"
 "var mysize = coll.dataSize();\n"
 "\n"
 "total += coll.dataSize();\n"
 "}\n"
 ");\n"
 "return total;\n"
 "}\n"
 "\n"
 "DBCollection.prototype.convertToCapped = function( bytes ){\n"
 "if ( ! bytes )\n"
 "throw \"have to specify # of bytes\";\n"
 "return this._dbCommand( { convertToCapped : this._shortName , size : bytes } )\n"
 "}\n"
 "\n"
 "DBCollection.prototype.exists = function(){\n"
 "return this._db.system.namespaces.findOne( { name : this._fullName } );\n"
 "}\n"
 "\n"
 "DBCollection.prototype.isCapped = function(){\n"
 "var e = this.exists();\n"
 "return ( e && e.options && e.options.capped ) ? true : false;\n"
 "}\n"
 "\n"
 "DBCollection.prototype.group = function( params ){\n"
 "params.ns = this._shortName;\n"
 "return this._db.group( params );\n"
 "}\n"
 "\n"
 "DBCollection.prototype.toString = function(){\n"
 "return this.getFullName();\n"
 "}\n"
 "\n"
 "DBCollection.prototype.shellPrint = DBCollection.prototype.toString;\n"
 "\n"
 "\n"
 "\n"
 "\n"
 "if ( typeof DB == \"undefined\" ){\n"
 "DB = function( mongo , name ){\n"
 "this._mongo = mongo;\n"
 "this._name = name;\n"
 "}\n"
 "}\n"
 "\n"
 "DB.prototype.getMongo = function(){\n"
 "assert( this._mongo , \"why no mongo!\" );\n"
 "return this._mongo;\n"
 "}\n"
 "\n"
 "DB.prototype.getSisterDB = function( name ){\n"
 "return this.getMongo().getDB( name );\n"
 "}\n"
 "\n"
 "DB.prototype.getName = function(){\n"
 "return this._name;\n"
 "}\n"
 "\n"
 "DB.prototype.getCollection = function( name ){\n"
 "return new DBCollection( this._mongo , this , name , this._name + \".\" + name );\n"
 "}\n"
 "\n"
 "DB.prototype.commandHelp = function( name ){\n"
 "var c = {};\n"
 "c[name] = 1;\n"
 "c.help = true;\n"
 "return this.runCommand( c ).help;\n"
 "}\n"
 "\n"
 "DB.prototype.runCommand = function( obj ){\n"
 "if ( typeof( obj ) == \"string\" ){\n"
 "var n = {};\n"
 "n[obj] = 1;\n"
 "obj = n;\n"
 "}\n"
 "return this.getCollection( \"$cmd\" ).findOne( obj );\n"
 "}\n"
 "\n"
 "DB.prototype._dbCommand = DB.prototype.runCommand;\n"
 "\n"
 "DB.prototype.addUser = function( username , pass ){\n"
 "var c = this.getCollection( \"system.users\" );\n"
 "\n"
 "var u = c.findOne( { user : username } ) || { user : username };\n"
 "u.pwd = hex_md5( username + \":mongo:\" + pass );\n"
 "print( tojson( u ) );\n"
 "\n"
 "c.save( u );\n"
 "}\n"
 "\n"
 "DB.prototype.removeUser = function( username ){\n"
 "this.getCollection( \"system.users\" ).remove( { user : username } );\n"
 "}\n"
 "\n"
 "DB.prototype.auth = function( username , pass ){\n"
 "var n = this.runCommand( { getnonce : 1 } );\n"
 "\n"
 "var a = this.runCommand(\n"
 "{\n"
 "authenticate : 1 ,\n"
 "user : username ,\n"
 "nonce : n.nonce ,\n"
 "key : hex_md5( n.nonce + username + hex_md5( username + \":mongo:\" + pass ) )\n"
 "}\n"
 ");\n"
 "\n"
 "return a.ok;\n"
 "}\n"
 "\n"
 "/**\n"
 "Create a new collection in the database.  Normally, collection creation is automatic.  You would\n"
 "use this function if you wish to specify special options on creation.\n"
 "\n"
 "If the collection already exists, no action occurs.\n"
 "\n"
 "<p>Options:</p>\n"
 "<ul>\n"
 "<li>\n"
 "size: desired initial extent size for the collection.  Must be <= 1000000000.\n"
 "for fixed size (capped) collections, this size is the total/max size of the\n"
 "collection.\n"
 "</li>\n"
 "<li>\n"
 "capped: if true, this is a capped collection (where old data rolls out).\n"
 "</li>\n"
 "<li> max: maximum number of objects if capped (optional).</li>\n"
 "</ul>\n"
 "\n"
 "<p>Example: </p>\n"
 "\n"
 "<code>db.createCollection(\"movies\", { size: 10 * 1024 * 1024, capped:true } );</code>\n"
 "\n"
 "* @param {String} name Name of new collection to create\n"
 "* @param {Object} options Object with options for call.  Options are listed above.\n"
 "* @return SOMETHING_FIXME\n"
 "*/\n"
 "DB.prototype.createCollection = function(name, opt) {\n"
 "var options = opt || {};\n"
 "var cmd = { create: name, capped: options.capped, size: options.size, max: options.max };\n"
 "var res = this._dbCommand(cmd);\n"
 "return res;\n"
 "}\n"
 "\n"
 "/**\n"
 "*  Returns the current profiling level of this database\n"
 "*  @return SOMETHING_FIXME or null on error\n"
 "*/\n"
 "DB.prototype.getProfilingLevel  = function() {\n"
 "var res = this._dbCommand( { profile: -1 } );\n"
 "return res ? res.was : null;\n"
 "}\n"
 "\n"
 "\n"
 "/**\n"
 "Erase the entire database.  (!)\n"
 "\n"
 "* @return Object returned has member ok set to true if operation succeeds, false otherwise.\n"
 "*/\n"
 "DB.prototype.dropDatabase = function() {\n"
 "return this._dbCommand( { dropDatabase: 1 } );\n"
 "}\n"
 "\n"
 "\n"
 "DB.prototype.shutdownServer = function() {\n"
 "if( \"admin\" != db )\n"
 "return \"shutdown command only works with the admin database; try 'use admin'\";\n"
 "return this._dbCommand(\"shutdown\");\n"
 "}\n"
 "\n"
 "/**\n"
 "Clone database on another server to here.\n"
 "<p>\n"
 "Generally, you should dropDatabase() first as otherwise the cloned information will MERGE\n"
 "into whatever data is already present in this database.  (That is however a valid way to use\n"
 "clone if you are trying to do something intentionally, such as union three non-overlapping\n"
 "databases into one.)\n"
 "<p>\n"
 "This is a low level administrative function will is not typically used.\n"
 "\n"
 "* @param {String} from Where to clone from (dbhostname[:port]).  May not be this database\n"
 "(self) as you cannot clone to yourself.\n"
 "* @return Object returned has member ok set to true if operation succeeds, false otherwise.\n"
 "* See also: db.copyDatabase()\n"
 "*/\n"
 "DB.prototype.cloneDatabase = function(from) {\n"
 "assert( isString(from) && from.length );\n"
 "\n"
 "return this._dbCommand( { clone: from } );\n"
 "}\n"
 "\n"
 "\n"
 "/**\n"
 "Clone collection on another server to here.\n"
 "<p>\n"
 "Generally, you should drop() first as otherwise the cloned information will MERGE\n"
 "into whatever data is already present in this collection.  (That is however a valid way to use\n"
 "clone if you are trying to do something intentionally, such as union three non-overlapping\n"
 "collections into one.)\n"
 "<p>\n"
 "This is a low level administrative function is not typically used.\n"
 "\n"
 "* @param {String} from mongod instance from which to clnoe (dbhostname:port).  May\n"
 "not be this mongod instance, as clone from self is not allowed.\n"
 "* @param {String} collection name of collection to clone.\n"
 "* @param {Object} query query specifying which elements of collection are to be cloned.\n"
 "* @return Object returned has member ok set to true if operation succeeds, false otherwise.\n"
 "* See also: db.cloneDatabase()\n"
 "*/\n"
 "DB.prototype.cloneCollection = function(from, collection, query) {\n"
 "assert( isString(from) && from.length );\n"
 "assert( isString(collection) && collection.length );\n"
 "collection = this._name + \".\" + collection;\n"
 "query = query || {};\n"
 "\n"
 "return this._dbCommand( { cloneCollection:collection, from:from, query:query } );\n"
 "}\n"
 "\n"
 "\n"
 "/**\n"
 "Copy database from one server or name to another server or name.\n"
 "\n"
 "Generally, you should dropDatabase() first as otherwise the copied information will MERGE\n"
 "into whatever data is already present in this database (and you will get duplicate objects\n"
 "in collections potentially.)\n"
 "\n"
 "For security reasons this function only works when executed on the \"admin\" db.  However,\n"
 "if you have access to said db, you can copy any database from one place to another.\n"
 "\n"
 "This method provides a way to \"rename\" a database by copying it to a new db name and\n"
 "location.  Additionally, it effectively provides a repair facility.\n"
 "\n"
 "* @param {String} fromdb database name from which to copy.\n"
 "* @param {String} todb database name to copy to.\n"
 "* @param {String} fromhost hostname of the database (and optionally, \":port\") from which to\n"
 "copy the data.  default if unspecified is to copy from self.\n"
 "* @return Object returned has member ok set to true if operation succeeds, false otherwise.\n"
 "* See also: db.clone()\n"
 "*/\n"
 "DB.prototype.copyDatabase = function(fromdb, todb, fromhost) {\n"
 "assert( isString(fromdb) && fromdb.length );\n"
 "assert( isString(todb) && todb.length );\n"
 "fromhost = fromhost || \"\";\n"
 "\n"
 "return this._dbCommand( { copydb:1, fromhost:fromhost, fromdb:fromdb, todb:todb } );\n"
 "}\n"
 "\n"
 "/**\n"
 "Repair database.\n"
 "\n"
 "* @return Object returned has member ok set to true if operation succeeds, false otherwise.\n"
 "*/\n"
 "DB.prototype.repairDatabase = function() {\n"
 "return this._dbCommand( { repairDatabase: 1 } );\n"
 "}\n"
 "\n"
 "\n"
 "DB.prototype.help = function() {\n"
 "print(\"DB methods:\");\n"
 "print(\"\\tdb.auth(username, password)\");\n"
 "print(\"\\tdb.getMongo() get the server connection object\");\n"
 "print(\"\\tdb.getSisterDB(name) get the db at the same server as this onew\");\n"
 "print(\"\\tdb.getName()\");\n"
 "print(\"\\tdb.getCollection(cname) same as db['cname'] or db.cname\");\n"
 "print(\"\\tdb.runCommand(cmdObj) run a database command.  if cmdObj is a string, turns it into { cmdObj : 1 }\");\n"
 "print(\"\\tdb.commandHelp(name) returns the help for the command\");\n"
 "print(\"\\tdb.addUser(username, password)\");\n"
 "print(\"\\tdb.removeUser(username)\");\n"
 "print(\"\\tdb.createCollection(name, { size : ..., capped : ..., max : ... } )\");\n"
 "print(\"\\tdb.getReplicationInfo()\");\n"
 "print(\"\\tdb.getProfilingLevel()\");\n"
 "print(\"\\tdb.setProfilingLevel(level) 0=off 1=slow 2=all\");\n"
 "print(\"\\tdb.cloneDatabase(fromhost)\");\n"
 "print(\"\\tdb.copyDatabase(fromdb, todb, fromhost)\");\n"
 "print(\"\\tdb.shutdownServer()\");\n"
 "print(\"\\tdb.dropDatabase()\");\n"
 "print(\"\\tdb.repairDatabase()\");\n"
 "print(\"\\tdb.eval(func, args) run code server-side\");\n"
 "print(\"\\tdb.getLastError()\");\n"
 "print(\"\\tdb.getPrevError()\");\n"
 "print(\"\\tdb.resetError()\");\n"
 "print(\"\\tdb.getCollectionNames()\");\n"
 "print(\"\\tdb.group(ns, key[, keyf], cond, reduce, initial)\");\n"
 "}\n"
 "\n"
 "/**\n"
 "* <p> Set profiling level for your db.  Profiling gathers stats on query performance. </p>\n"
 "*\n"
 "* <p>Default is off, and resets to off on a database restart -- so if you want it on,\n"
 "*    turn it on periodically. </p>\n"
 "*\n"
 "*  <p>Levels :</p>\n"
 "*   <ul>\n"
 "*    <li>0=off</li>\n"
 "*    <li>1=log very slow (>100ms) operations</li>\n"
 "*    <li>2=log all</li>\n"
 "*  @param {String} level Desired level of profiling\n"
 "*  @return SOMETHING_FIXME or null on error\n"
 "*/\n"
 "DB.prototype.setProfilingLevel = function(level) {\n"
 "\n"
 "if (level < 0 || level > 2) {\n"
 "throw { dbSetProfilingException : \"input level \" + level + \" is out of range [0..2]\" };\n"
 "}\n"
 "\n"
 "if (level) {\n"
 "\n"
 "this.createCollection(\"system.profile\", { capped: true, size: 128 * 1024 } );\n"
 "}\n"
 "return this._dbCommand( { profile: level } );\n"
 "}\n"
 "\n"
 "\n"
 "/**\n"
 "*  <p> Evaluate a js expression at the database server.</p>\n"
 "*\n"
 "* <p>Useful if you need to touch a lot of data lightly; in such a scenario\n"
 "*  the network transfer of the data could be a bottleneck.  A good example\n"
 "*  is \"select count(*)\" -- can be done server side via this mechanism.\n"
 "* </p>\n"
 "*\n"
 "* <p>\n"
 "* If the eval fails, an exception is thrown of the form:\n"
 "* </p>\n"
 "* <code>{ dbEvalException: { retval: functionReturnValue, ok: num [, errno: num] [, errmsg: str] } }</code>\n"
 "*\n"
 "* <p>Example: </p>\n"
 "* <code>print( \"mycount: \" + db.eval( function(){db.mycoll.find({},{_id:ObjId()}).length();} );</code>\n"
 "*\n"
 "* @param {Function} jsfunction Javascript function to run on server.  Note this it not a closure, but rather just \"code\".\n"
 "* @return result of your function, or null if error\n"
 "*\n"
 "*/\n"
 "DB.prototype.eval = function(jsfunction) {\n"
 "var cmd = { $eval : jsfunction };\n"
 "if ( arguments.length > 1 ) {\n"
 "cmd.args = argumentsToArray( arguments ).slice(1);\n"
 "}\n"
 "\n"
 "var res = this._dbCommand( cmd );\n"
 "\n"
 "if (!res.ok)\n"
 "throw tojson( res );\n"
 "\n"
 "return res.retval;\n"
 "}\n"
 "\n"
 "DB.prototype.dbEval = DB.prototype.eval;\n"
 "\n"
 "\n"
 "/**\n"
 "*\n"
 "*  <p>\n"
 "*   Similar to SQL group by.  For example: </p>\n"
 "*\n"
 "*  <code>select a,b,sum(c) csum from coll where active=1 group by a,b</code>\n"
 "*\n"
 "*  <p>\n"
 "*    corresponds to the following in 10gen:\n"
 "*  </p>\n"
 "*\n"
 "*  <code>\n"
 "db.group(\n"
 "{\n"
 "ns: \"coll\",\n"
 "key: { a:true, b:true },\n"
 "\n"
 "cond: { active:1 },\n"
 "reduce: function(obj,prev) { prev.csum += obj.c; } ,\n"
 "initial: { csum: 0 }\n"
 "});\n"
 "</code>\n"
 "*\n"
 "*\n"
 "* <p>\n"
 "*  An array of grouped items is returned.  The array must fit in RAM, thus this function is not\n"
 "* suitable when the return set is extremely large.\n"
 "* </p>\n"
 "* <p>\n"
 "* To order the grouped data, simply sort it client side upon return.\n"
 "* <p>\n"
 "Defaults\n"
 "cond may be null if you want to run against all rows in the collection\n"
 "keyf is a function which takes an object and returns the desired key.  set either key or keyf (not both).\n"
 "* </p>\n"
 "*/\n"
 "DB.prototype.group = function(parmsObj) {\n"
 "\n"
 "var groupFunction = function() {\n"
 "var parms = args[0];\n"
 "var c = db[parms.ns].find(parms.cond||{});\n"
 "var map = new Map();\n"
 "\n"
 "while( c.hasNext() ) {\n"
 "var obj = c.next();\n"
 "var key = {};\n"
 "if( parms.key ) {\n"
 "for( var i in parms.key )\n"
 "key[i] = obj[i];\n"
 "}\n"
 "else {\n"
 "key = parms.$keyf(obj);\n"
 "}\n"
 "var aggObj = map.get(key);\n"
 "if( aggObj == null ) {\n"
 "var newObj = Object.extend({}, key); \n"
 "aggObj = Object.extend(newObj, parms.initial)\n"
 "map.put( key , aggObj );\n"
 "}\n"
 "parms.$reduce(obj, aggObj);\n"
 "}\n"
 "\n"
 "return map.values();\n"
 "}\n"
 "\n"
 "var parms = Object.extend({}, parmsObj);\n"
 "\n"
 "if( parms.reduce ) {\n"
 "parms.$reduce = parms.reduce; \n"
 "delete parms.reduce;\n"
 "}\n"
 "\n"
 "if( parms.keyf ) {\n"
 "parms.$keyf = parms.keyf;\n"
 "delete parms.keyf;\n"
 "}\n"
 "\n"
 "return this.eval(groupFunction, parms);\n"
 "}\n"
 "\n"
 "DB.prototype.resetError = function(){\n"
 "return this.runCommand( { reseterror : 1 } );\n"
 "}\n"
 "\n"
 "DB.prototype.forceError = function(){\n"
 "return this.runCommand( { forceerror : 1 } );\n"
 "}\n"
 "\n"
 "DB.prototype.getLastError = function(){\n"
 "return this.runCommand( { getlasterror : 1 } ).err;\n"
 "}\n"
 "\n"
 "/* Return the last error which has occurred, even if not the very last error.\n"
 "\n"
 "Returns:\n"
 "{ err : <error message>, nPrev : <how_many_ops_back_occurred>, ok : 1 }\n"
 "\n"
 "result.err will be null if no error has occurred.\n"
 "*/\n"
 "DB.prototype.getPrevError = function(){\n"
 "return this.runCommand( { getpreverror : 1 } );\n"
 "}\n"
 "\n"
 "DB.prototype.getCollectionNames = function(){\n"
 "var all = [];\n"
 "\n"
 "var nsLength = this._name.length + 1;\n"
 "\n"
 "this.getCollection( \"system.namespaces\" ).find().sort({name:1}).forEach(\n"
 "function(z){\n"
 "var name = z.name;\n"
 "\n"
 "if ( name.indexOf( \"$\" ) >= 0 )\n"
 "return;\n"
 "\n"
 "all.push( name.substring( nsLength ) );\n"
 "}\n"
 ");\n"
 "return all;\n"
 "}\n"
 "\n"
 "DB.prototype.tojson = function(){\n"
 "return this._name;\n"
 "}\n"
 "\n"
 "DB.prototype.toString = function(){\n"
 "return this._name;\n"
 "}\n"
 "\n"
 "DB.prototype.currentOp = function(){\n"
 "return db.$cmd.sys.inprog.findOne();\n"
 "}\n"
 "DB.prototype.currentOP = DB.prototype.currentOp;\n"
 "\n"
 "DB.prototype.killOp = function(){\n"
 "return db.$cmd.sys.killop.findOne();\n"
 "}\n"
 "DB.prototype.killOP = DB.prototype.killOp;\n"
 "\n"
 "/**\n"
 "Get a replication log information summary.\n"
 "<p>\n"
 "This command is for the database/cloud administer and not applicable to most databases.\n"
 "It is only used with the local database.  One might invoke from the JS shell:\n"
 "<pre>\n"
 "use local\n"
 "db.getReplicationInfo();\n"
 "</pre>\n"
 "It is assumed that this database is a replication master -- the information returned is\n"
 "about the operation log stored at local.oplog.$main on the replication master.  (It also\n"
 "works on a machine in a replica pair: for replica pairs, both machines are \"masters\" from\n"
 "an internal database perspective.\n"
 "<p>\n"
 "* @return Object timeSpan: time span of the oplog from start to end  if slave is more out\n"
 "*                          of date than that, it can't recover without a complete resync\n"
 "*/\n"
 "DB.prototype.getReplicationInfo = function() {\n"
 "if( \"local\" != this )\n"
 "return { errmsg : \"this command only works for database local\" };\n"
 "\n"
 "var result = { };\n"
 "var db = this;\n"
 "var ol = db.system.namespaces.findOne({name:\"local.oplog.$main\"});\n"
 "if( ol && ol.options ) {\n"
 "result.logSizeMB = ol.options.size / 1000 / 1000;\n"
 "} else {\n"
 "result.errmsg  = \"local.oplog.$main, or its options, not found in system.namespaces collection\";\n"
 "return result;\n"
 "}\n"
 "\n"
 "var firstc = db.oplog.$main.find().sort({$natural:1}).limit(1);\n"
 "var lastc = db.oplog.$main.find().sort({$natural:-1}).limit(1);\n"
 "if( !firstc.hasNext() || !lastc.hasNext() ) {\n"
 "result.errmsg = \"objects not found in local.oplog.$main -- is this a new and empty db instance?\";\n"
 "result.oplogMainRowCount = db.oplog.$main.count();\n"
 "return result;\n"
 "}\n"
 "\n"
 "var first = firstc.next();\n"
 "var last = lastc.next();\n"
 "{\n"
 "var tfirst = first.ts;\n"
 "var tlast = last.ts;\n"
 "if( tfirst && tlast ) {\n"
 "tfirst = tfirst / 4294967296; \n"
 "tlast = tlast / 4294967296;\n"
 "result.timeDiff = tlast - tfirst;\n"
 "result.timeDiffHours = result.timeDiff / 3600;\n"
 "result.tFirst = (new Date(tfirst*1000)).toString();\n"
 "result.tLast  = (new Date(tlast*1000)).toString();\n"
 "result.now = Date();\n"
 "}\n"
 "else {\n"
 "result.errmsg = \"ts element not found in oplog objects\";\n"
 "}\n"
 "}\n"
 "\n"
 "return result;\n"
 "}\n"
 "/**\n"
 "*      Copyright (C) 2008 10gen Inc.\n"
 "*\n"
 "*    Licensed under the Apache License, Version 2.0 (the \"License\");\n"
 "*    you may not use this file except in compliance with the License.\n"
 "*    You may obtain a copy of the License at\n"
 "*\n"
 "*       http:\n"
 "*\n"
 "*    Unless required by applicable law or agreed to in writing, software\n"
 "*    distributed under the License is distributed on an \"AS IS\" BASIS,\n"
 "*    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n"
 "*    See the License for the specific language governing permissions and\n"
 "*    limitations under the License.\n"
 "*/\n"
 "\n"
 "/*\n"
 "* A JavaScript implementation of the RSA Data Security, Inc. MD5 Message\n"
 "* Digest Algorithm, as defined in RFC 1321.\n"
 "* Version 2.1 Copyright (C) Paul Johnston 1999 - 2002.\n"
 "* Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet\n"
 "* Distributed under the BSD License\n"
 "* See http:\n"
 "*/\n"
 "\n"
 "/*\n"
 "* Configurable variables. You may need to tweak these to be compatible with\n"
 "* the server-side, but the defaults work in most cases.\n"
 "*/\n"
 "var hexcase = 0;  /* hex output format. 0 - lowercase; 1 - uppercase        */\n"
 "var b64pad  = \"\"; /* base-64 pad character. \"=\" for strict RFC compliance   */\n"
 "var chrsz   = 8;  /* bits per input character. 8 - ASCII; 16 - Unicode      */\n"
 "\n"
 "/*\n"
 "* These are the functions you'll usually want to call\n"
 "* They take string arguments and return either hex or base-64 encoded strings\n"
 "*/\n"
 "function hex_md5(s){\n"
 "var theCore = core_md5(str2binl(s), s.length * chrsz);\n"
 "return binl2hex( theCore );\n"
 "}\n"
 "function b64_md5(s){ return binl2b64(core_md5(str2binl(s), s.length * chrsz));}\n"
 "function str_md5(s){ return binl2str(core_md5(str2binl(s), s.length * chrsz));}\n"
 "function hex_hmac_md5(key, data) { return binl2hex(core_hmac_md5(key, data)); }\n"
 "function b64_hmac_md5(key, data) { return binl2b64(core_hmac_md5(key, data)); }\n"
 "function str_hmac_md5(key, data) { return binl2str(core_hmac_md5(key, data)); }\n"
 "\n"
 "/*\n"
 "* Perform a simple self-test to see if the VM is working\n"
 "*/\n"
 "function md5_vm_test()\n"
 "{\n"
 "var actual = hex_md5(\"abc\");\n"
 "return actual == \"900150983cd24fb0d6963f7d28e17f72\";\n"
 "}\n"
 "\n"
 "/*\n"
 "* Calculate the MD5 of an array of little-endian words, and a bit length\n"
 "*/\n"
 "function core_md5(x, len)\n"
 "{\n"
 "/* append padding */\n"
 "x[len >> 5] |= 0x80 << ((len) % 32);\n"
 "x[(((len + 64) >>> 9) << 4) + 14] = len;\n"
 "\n"
 "var a =  1732584193;\n"
 "var b = -271733879;\n"
 "var c = -1732584194;\n"
 "var d =  271733878;\n"
 "\n"
 "for(var i = 0; i < x.length; i += 16)\n"
 "{\n"
 "var olda = a;\n"
 "var oldb = b;\n"
 "var oldc = c;\n"
 "var oldd = d;\n"
 "\n"
 "a = md5_ff(a, b, c, d, x[i+ 0], 7 , -680876936);\n"
 "d = md5_ff(d, a, b, c, x[i+ 1], 12, -389564586);\n"
 "c = md5_ff(c, d, a, b, x[i+ 2], 17,  606105819);\n"
 "b = md5_ff(b, c, d, a, x[i+ 3], 22, -1044525330);\n"
 "a = md5_ff(a, b, c, d, x[i+ 4], 7 , -176418897);\n"
 "d = md5_ff(d, a, b, c, x[i+ 5], 12,  1200080426);\n"
 "\n"
 "c = md5_ff(c, d, a, b, x[i+ 6], 17, -1473231341);\n"
 "b = md5_ff(b, c, d, a, x[i+ 7], 22, -45705983);\n"
 "a = md5_ff(a, b, c, d, x[i+ 8], 7 ,  1770035416);\n"
 "d = md5_ff(d, a, b, c, x[i+ 9], 12, -1958414417);\n"
 "c = md5_ff(c, d, a, b, x[i+10], 17, -42063);\n"
 "b = md5_ff(b, c, d, a, x[i+11], 22, -1990404162);\n"
 "a = md5_ff(a, b, c, d, x[i+12], 7 ,  1804603682);\n"
 "d = md5_ff(d, a, b, c, x[i+13], 12, -40341101);\n"
 "c = md5_ff(c, d, a, b, x[i+14], 17, -1502002290);\n"
 "b = md5_ff(b, c, d, a, x[i+15], 22,  1236535329);\n"
 "\n"
 "a = md5_gg(a, b, c, d, x[i+ 1], 5 , -165796510);\n"
 "d = md5_gg(d, a, b, c, x[i+ 6], 9 , -1069501632);\n"
 "c = md5_gg(c, d, a, b, x[i+11], 14,  643717713);\n"
 "b = md5_gg(b, c, d, a, x[i+ 0], 20, -373897302);\n"
 "a = md5_gg(a, b, c, d, x[i+ 5], 5 , -701558691);\n"
 "d = md5_gg(d, a, b, c, x[i+10], 9 ,  38016083);\n"
 "c = md5_gg(c, d, a, b, x[i+15], 14, -660478335);\n"
 "b = md5_gg(b, c, d, a, x[i+ 4], 20, -405537848);\n"
 "a = md5_gg(a, b, c, d, x[i+ 9], 5 ,  568446438);\n"
 "d = md5_gg(d, a, b, c, x[i+14], 9 , -1019803690);\n"
 "c = md5_gg(c, d, a, b, x[i+ 3], 14, -187363961);\n"
 "b = md5_gg(b, c, d, a, x[i+ 8], 20,  1163531501);\n"
 "a = md5_gg(a, b, c, d, x[i+13], 5 , -1444681467);\n"
 "d = md5_gg(d, a, b, c, x[i+ 2], 9 , -51403784);\n"
 "c = md5_gg(c, d, a, b, x[i+ 7], 14,  1735328473);\n"
 "b = md5_gg(b, c, d, a, x[i+12], 20, -1926607734);\n"
 "\n"
 "\n"
 "a = md5_hh(a, b, c, d, x[i+ 5], 4 , -378558);\n"
 "d = md5_hh(d, a, b, c, x[i+ 8], 11, -2022574463);\n"
 "c = md5_hh(c, d, a, b, x[i+11], 16,  1839030562);\n"
 "b = md5_hh(b, c, d, a, x[i+14], 23, -35309556);\n"
 "a = md5_hh(a, b, c, d, x[i+ 1], 4 , -1530992060);\n"
 "d = md5_hh(d, a, b, c, x[i+ 4], 11,  1272893353);\n"
 "c = md5_hh(c, d, a, b, x[i+ 7], 16, -155497632);\n"
 "b = md5_hh(b, c, d, a, x[i+10], 23, -1094730640);\n"
 "a = md5_hh(a, b, c, d, x[i+13], 4 ,  681279174);\n"
 "d = md5_hh(d, a, b, c, x[i+ 0], 11, -358537222);\n"
 "c = md5_hh(c, d, a, b, x[i+ 3], 16, -722521979);\n"
 "b = md5_hh(b, c, d, a, x[i+ 6], 23,  76029189);\n"
 "a = md5_hh(a, b, c, d, x[i+ 9], 4 , -640364487);\n"
 "d = md5_hh(d, a, b, c, x[i+12], 11, -421815835);\n"
 "c = md5_hh(c, d, a, b, x[i+15], 16,  530742520);\n"
 "b = md5_hh(b, c, d, a, x[i+ 2], 23, -995338651);\n"
 "\n"
 "a = md5_ii(a, b, c, d, x[i+ 0], 6 , -198630844);\n"
 "d = md5_ii(d, a, b, c, x[i+ 7], 10,  1126891415);\n"
 "c = md5_ii(c, d, a, b, x[i+14], 15, -1416354905);\n"
 "b = md5_ii(b, c, d, a, x[i+ 5], 21, -57434055);\n"
 "a = md5_ii(a, b, c, d, x[i+12], 6 ,  1700485571);\n"
 "d = md5_ii(d, a, b, c, x[i+ 3], 10, -1894986606);\n"
 "c = md5_ii(c, d, a, b, x[i+10], 15, -1051523);\n"
 "b = md5_ii(b, c, d, a, x[i+ 1], 21, -2054922799);\n"
 "a = md5_ii(a, b, c, d, x[i+ 8], 6 ,  1873313359);\n"
 "d = md5_ii(d, a, b, c, x[i+15], 10, -30611744);\n"
 "c = md5_ii(c, d, a, b, x[i+ 6], 15, -1560198380);\n"
 "b = md5_ii(b, c, d, a, x[i+13], 21,  1309151649);\n"
 "a = md5_ii(a, b, c, d, x[i+ 4], 6 , -145523070);\n"
 "d = md5_ii(d, a, b, c, x[i+11], 10, -1120210379);\n"
 "c = md5_ii(c, d, a, b, x[i+ 2], 15,  718787259);\n"
 "b = md5_ii(b, c, d, a, x[i+ 9], 21, -343485551);\n"
 "\n"
 "a = safe_add(a, olda);\n"
 "b = safe_add(b, oldb);\n"
 "c = safe_add(c, oldc);\n"
 "d = safe_add(d, oldd);\n"
 "}\n"
 "\n"
 "return Array(a, b, c, d);\n"
 "\n"
 "}\n"
 "\n"
 "/*\n"
 "* These functions implement the four basic operations the algorithm uses.\n"
 "*/\n"
 "function md5_cmn(q, a, b, x, s, t)\n"
 "{\n"
 "return safe_add(bit_rol(safe_add(safe_add(a, q), safe_add(x, t)), s),b);\n"
 "}\n"
 "function md5_ff(a, b, c, d, x, s, t)\n"
 "{\n"
 "return md5_cmn((b & c) | ((~b) & d), a, b, x, s, t);\n"
 "}\n"
 "function md5_gg(a, b, c, d, x, s, t)\n"
 "{\n"
 "return md5_cmn((b & d) | (c & (~d)), a, b, x, s, t);\n"
 "}\n"
 "function md5_hh(a, b, c, d, x, s, t)\n"
 "{\n"
 "return md5_cmn(b ^ c ^ d, a, b, x, s, t);\n"
 "}\n"
 "function md5_ii(a, b, c, d, x, s, t)\n"
 "{\n"
 "return md5_cmn(c ^ (b | (~d)), a, b, x, s, t);\n"
 "}\n"
 "\n"
 "/*\n"
 "* Calculate the HMAC-MD5, of a key and some data\n"
 "*/\n"
 "function core_hmac_md5(key, data)\n"
 "{\n"
 "var bkey = str2binl(key);\n"
 "if(bkey.length > 16) bkey = core_md5(bkey, key.length * chrsz);\n"
 "\n"
 "var ipad = Array(16), opad = Array(16);\n"
 "for(var i = 0; i < 16; i = i + 1)\n"
 "{\n"
 "ipad[i] = bkey[i] ^ 0x36363636;\n"
 "opad[i] = bkey[i] ^ 0x5C5C5C5C;\n"
 "}\n"
 "\n"
 "var hash = core_md5(ipad.concat(str2binl(data)), 512 + data.length * chrsz);\n"
 "return core_md5(opad.concat(hash), 512 + 128);\n"
 "}\n"
 "\n"
 "/*\n"
 "* Add integers, wrapping at 2^32. This uses 16-bit operations internally\n"
 "* to work around bugs in some JS interpreters.\n"
 "*/\n"
 "function safe_add(x, y)\n"
 "{\n"
 "var lsw = (x & 0xFFFF) + (y & 0xFFFF);\n"
 "var msw = (x >> 16) + (y >> 16) + (lsw >> 16);\n"
 "return (msw << 16) | (lsw & 0xFFFF);\n"
 "}\n"
 "\n"
 "/*\n"
 "* Bitwise rotate a 32-bit number to the left.\n"
 "*/\n"
 "function bit_rol(num, cnt)\n"
 "{\n"
 "return (num << cnt) | (num >>> (32 - cnt));\n"
 "}\n"
 "\n"
 "/*\n"
 "* Convert a string to an array of little-endian words\n"
 "* If chrsz is ASCII, characters >255 have their hi-byte silently ignored.\n"
 "*/\n"
 "function str2binl(str)\n"
 "{\n"
 "var bin = Array();\n"
 "var mask = (1 << chrsz) - 1;\n"
 "for(var i = 0; i < str.length * chrsz; i += chrsz)\n"
 "bin[i>>5] |= (str.charCodeAt(i / chrsz) & mask) << (i%32);\n"
 "return bin;\n"
 "}\n"
 "\n"
 "/*\n"
 "* Convert an array of little-endian words to a string\n"
 "*/\n"
 "function binl2str(bin)\n"
 "{\n"
 "var str = \"\";\n"
 "var mask = (1 << chrsz) - 1;\n"
 "for(var i = 0; i < bin.length * 32; i += chrsz)\n"
 "str += String.fromCharCode((bin[i>>5] >>> (i % 32)) & mask);\n"
 "return str;\n"
 "}\n"
 "\n"
 "/*\n"
 "* Convert an array of little-endian words to a hex string.\n"
 "*/\n"
 "function binl2hex(binarray)\n"
 "{\n"
 "var hex_tab = hexcase ? \"0123456789ABCDEF\" : \"0123456789abcdef\";\n"
 "var str = \"\";\n"
 "for(var i = 0; i < binarray.length * 4; i = 1 + i)\n"
 "{\n"
 "str += hex_tab.charAt((binarray[i>>2] >> ((i%4)*8+4)) & 0xF) +\n"
 "hex_tab.charAt((binarray[i>>2] >> ((i%4)*8  )) & 0xF);\n"
 "}\n"
 "return str;\n"
 "}\n"
 "\n"
 "/*\n"
 "* Convert an array of little-endian words to a base-64 string\n"
 "*/\n"
 "function binl2b64(binarray)\n"
 "{\n"
 "var tab = \"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/\";\n"
 "var str = \"\";\n"
 "for(var i = 0; i < binarray.length * 4; i += 3)\n"
 "{\n"
 "var triplet = (((binarray[i   >> 2] >> 8 * ( i   %4)) & 0xFF) << 16)\n"
 "| (((binarray[i+1 >> 2] >> 8 * ((i+1)%4)) & 0xFF) << 8 )\n"
 "|  ((binarray[i+2 >> 2] >> 8 * ((i+2)%4)) & 0xFF);\n"
 "for(var j = 0; j < 4; j = j + 1)\n"
 "{\n"
 "if(i * 8 + j * 6 > binarray.length * 32) str += b64pad;\n"
 "else str += tab.charAt((triplet >> 6*(3-j)) & 0x3F);\n"
 "}\n"
 "}\n"
 "return str;\n"
 "}\n"
 "\n"
 "\n"
 "\n"
 "if ( typeof Mongo == \"undefined\" ){\n"
 "Mongo = function( host ){\n"
 "this.init( host );\n"
 "}\n"
 "}\n"
 "\n"
 "if ( ! Mongo.prototype ){\n"
 "throw \"Mongo.prototype not defined\";\n"
 "}\n"
 "\n"
 "\n"
 "if ( ! Mongo.prototype.find )\n"
 "Mongo.prototype.find = function( ns , query , fields , limit , skip ){ throw \"find not implemented\"; }\n"
 "if ( ! Mongo.prototype.insert )\n"
 "Mongo.prototype.insert = function( ns , obj ){ throw \"insert not implemented\"; }\n"
 "if ( ! Mongo.prototype.remove )\n"
 "Mongo.prototype.remove = function( ns , pattern ){ throw \"remove not implemented;\" }\n"
 "if ( ! Mongo.prototype.update )\n"
 "Mongo.prototype.update = function( ns , query , obj , upsert ){ throw \"update not implemented;\" }\n"
 "\n"
 "if ( typeof mongoInject == \"function\" ){\n"
 "mongoInject( Mongo.prototype );\n"
 "}\n"
 "\n"
 "Mongo.prototype.setSlaveOk = function() {\n"
 "this.slaveOk = true;\n"
 "}\n"
 "\n"
 "Mongo.prototype.getDB = function( name ){\n"
 "return new DB( this , name );\n"
 "}\n"
 "\n"
 "Mongo.prototype.getDBs = function(){\n"
 "var res = this.getDB( \"admin\" ).runCommand( { \"listDatabases\" : 1 } );\n"
 "assert( res.ok == 1 , \"listDatabases failed\" );\n"
 "return res;\n"
 "}\n"
 "\n"
 "Mongo.prototype.getDBNames = function(){\n"
 "return this.getDBs().databases.map(\n"
 "function(z){\n"
 "return z.name;\n"
 "}\n"
 ");\n"
 "}\n"
 "\n"
 "Mongo.prototype.toString = function(){\n"
 "return \"mongo connection to \" + this.host;\n"
 "}\n"
 "\n"
 "connect = function( url , user , pass ){\n"
 "print( \"connecting to: \" + url )\n"
 "\n"
 "if ( user && ! pass )\n"
 "throw \"you specified a user and not a password.  either you need a password, or you're using the old connect api\";\n"
 "\n"
 "var idx = url.indexOf( \"/\" );\n"
 "\n"
 "var db;\n"
 "\n"
 "if ( idx < 0 )\n"
 "db = new Mongo().getDB( url );\n"
 "else\n"
 "db = new Mongo( url.substring( 0 , idx ) ).getDB( url.substring( idx + 1 ) );\n"
 "\n"
 "if ( user && pass ){\n"
 "if ( ! db.auth( user , pass ) ){\n"
 "throw \"couldn't login\";\n"
 "}\n"
 "}\n"
 "\n"
 "return db;\n"
 "}\n"
 "\n"
 "\n"
 "if ( typeof DBQuery == \"undefined\" ){\n"
 "DBQuery = function( mongo , db , collection , ns , query , fields , limit , skip ){\n"
 "\n"
 "this._mongo = mongo; \n"
 "this._db = db; \n"
 "this._collection = collection; \n"
 "this._ns = ns; \n"
 "\n"
 "this._query = query || {}; \n"
 "this._fields = fields; \n"
 "this._limit = limit || 0; \n"
 "this._skip = skip || 0; \n"
 "\n"
 "this._cursor = null;\n"
 "this._numReturned = 0;\n"
 "this._special = false;\n"
 "}\n"
 "print( \"DBQuery probably won't have array access \" );\n"
 "}\n"
 "\n"
 "\n"
 "DBQuery.prototype.clone = function(){\n"
 "var q =  new DBQuery( this._mongo , this._db , this._collection , this._ns ,\n"
 "this._query , this._fields ,\n"
 "this._limit , this._skip );\n"
 "q._special = this._special;\n"
 "return q;\n"
 "}\n"
 "\n"
 "DBQuery.prototype._ensureSpecial = function(){\n"
 "if ( this._special )\n"
 "return;\n"
 "\n"
 "var n = { query : this._query };\n"
 "this._query = n;\n"
 "this._special = true;\n"
 "}\n"
 "\n"
 "DBQuery.prototype._checkModify = function(){\n"
 "if ( this._cursor )\n"
 "throw \"query already executed\";\n"
 "}\n"
 "\n"
 "DBQuery.prototype._exec = function(){\n"
 "if ( ! this._cursor ){\n"
 "assert.eq( 0 , this._numReturned );\n"
 "this._cursor = this._mongo.find( this._ns , this._query , this._fields , this._limit , this._skip );\n"
 "this._cursorSeen = 0;\n"
 "}\n"
 "return this._cursor;\n"
 "}\n"
 "\n"
 "DBQuery.prototype.limit = function( limit ){\n"
 "this._checkModify();\n"
 "this._limit = limit;\n"
 "return this;\n"
 "}\n"
 "\n"
 "DBQuery.prototype.skip = function( skip ){\n"
 "this._checkModify();\n"
 "this._skip = skip;\n"
 "return this;\n"
 "}\n"
 "\n"
 "DBQuery.prototype.hasNext = function(){\n"
 "this._exec();\n"
 "\n"
 "if ( this._limit > 0 && this._cursorSeen >= this._limit )\n"
 "return false;\n"
 "var o = this._cursor.hasNext();\n"
 "return o;\n"
 "}\n"
 "\n"
 "DBQuery.prototype.next = function(){\n"
 "this._exec();\n"
 "\n"
 "var o = this._cursor.hasNext();\n"
 "if ( o )\n"
 "this._cursorSeen++;\n"
 "else\n"
 "throw \"error hasNext: \" + o;\n"
 "\n"
 "var ret = this._cursor.next();\n"
 "if ( ret.$err && this._numReturned == 0 && ! this.hasNext() )\n"
 "throw \"error: \" + tojson( ret );\n"
 "\n"
 "this._numReturned++;\n"
 "return ret;\n"
 "}\n"
 "\n"
 "DBQuery.prototype.toArray = function(){\n"
 "if ( this._arr )\n"
 "return this._arr;\n"
 "\n"
 "var a = [];\n"
 "while ( this.hasNext() )\n"
 "a.push( this.next() );\n"
 "this._arr = a;\n"
 "return a;\n"
 "}\n"
 "\n"
 "DBQuery.prototype.count = function(){\n"
 "var cmd = { count: this._collection.getName() };\n"
 "if ( this._query ){\n"
 "if ( this._special )\n"
 "cmd.query = this._query.query;\n"
 "else\n"
 "cmd.query = this._query;\n"
 "}\n"
 "cmd.fields = this._fields || {};\n"
 "\n"
 "var res = this._db.runCommand( cmd );\n"
 "if( res && res.n != null ) return res.n;\n"
 "throw \"count failed: \" + tojson( res );\n"
 "}\n"
 "\n"
 "DBQuery.prototype.countReturn = function(){\n"
 "var c = this.count();\n"
 "\n"
 "if ( this._skip )\n"
 "c = c - this._skip;\n"
 "\n"
 "if ( this._limit > 0 && this._limit < c )\n"
 "return this._limit;\n"
 "\n"
 "return c;\n"
 "}\n"
 "\n"
 "/**\n"
 "* iterative count - only for testing\n"
 "*/\n"
 "DBQuery.prototype.itcount = function(){\n"
 "var num = 0;\n"
 "while ( this.hasNext() ){\n"
 "num++;\n"
 "this.next();\n"
 "}\n"
 "return num;\n"
 "}\n"
 "\n"
 "DBQuery.prototype.length = function(){\n"
 "return this.toArray().length;\n"
 "}\n"
 "\n"
 "DBQuery.prototype.sort = function( sortBy ){\n"
 "this._ensureSpecial();\n"
 "this._query.orderby = sortBy;\n"
 "return this;\n"
 "}\n"
 "\n"
 "DBQuery.prototype.hint = function( hint ){\n"
 "this._ensureSpecial();\n"
 "this._query[\"$hint\"] = hint;\n"
 "return this;\n"
 "}\n"
 "\n"
 "DBQuery.prototype.min = function( min ) {\n"
 "this._ensureSpecial();\n"
 "this._query[\"$min\"] = min;\n"
 "return this;\n"
 "}\n"
 "\n"
 "DBQuery.prototype.max = function( max ) {\n"
 "this._ensureSpecial();\n"
 "this._query[\"$max\"] = max;\n"
 "return this;\n"
 "}\n"
 "\n"
 "DBQuery.prototype.forEach = function( func ){\n"
 "while ( this.hasNext() )\n"
 "func( this.next() );\n"
 "}\n"
 "\n"
 "DBQuery.prototype.arrayAccess = function( idx ){\n"
 "return this.toArray()[idx];\n"
 "}\n"
 "\n"
 "DBQuery.prototype.explain = function(){\n"
 "var n = this.clone();\n"
 "n._ensureSpecial();\n"
 "n._query.$explain = true;\n"
 "return n.next();\n"
 "}\n"
 "\n"
 "DBQuery.prototype.shellPrint = function(){\n"
 "try {\n"
 "var n = 0;\n"
 "while ( this.hasNext() && n < 20 ){\n"
 "var s = tojson( this.next() );\n"
 "print( s );\n"
 "n++;\n"
 "}\n"
 "if ( this.hasNext() )\n"
 "print( \"has more\" );\n"
 "}\n"
 "catch ( e ){\n"
 "print( e );\n"
 "}\n"
 "\n"
 "}\n"
 "\n"
 "DBQuery.prototype.toString = function(){\n"
 "return \"DBQuery: \" + this._ns + \" -> \" + tojson( this.query );\n"
 "}\n"
 "\n"
 "\n"
 "_parsePath = function() {\n"
 "var dbpath = \"\";\n"
 "for( var i = 0; i < arguments.length; ++i )\n"
 "if ( arguments[ i ] == \"--dbpath\" )\n"
 "dbpath = arguments[ i + 1 ];\n"
 "\n"
 "if ( dbpath == \"\" )\n"
 "throw \"No dbpath specified\";\n"
 "\n"
 "return dbpath;\n"
 "}\n"
 "\n"
 "_parsePort = function() {\n"
 "var port = \"\";\n"
 "for( var i = 0; i < arguments.length; ++i )\n"
 "if ( arguments[ i ] == \"--port\" )\n"
 "port = arguments[ i + 1 ];\n"
 "\n"
 "if ( port == \"\" )\n"
 "throw \"No port specified\";\n"
 "return port;\n"
 "}\n"
 "\n"
 "createMongoArgs = function( binaryName , args ){\n"
 "var fullArgs = [ binaryName ];\n"
 "\n"
 "if ( args.length == 1 && isObject( args[0] ) ){\n"
 "var o = args[0];\n"
 "for ( var k in o ){\n"
 "if ( k == \"v\" && isNumber( o[k] ) ){\n"
 "var n = o[k];\n"
 "if ( n > 0 ){\n"
 "var temp = \"-\";\n"
 "while ( n-- > 0 ) temp += \"v\";\n"
 "fullArgs.push( temp );\n"
 "}\n"
 "}\n"
 "else {\n"
 "fullArgs.push( \"--\" + k );\n"
 "fullArgs.push( \"\" + o[k] );\n"
 "}\n"
 "}\n"
 "}\n"
 "else {\n"
 "for ( var i=0; i<args.length; i++ )\n"
 "fullArgs.push( args[i] )\n"
 "}\n"
 "\n"
 "return fullArgs;\n"
 "}\n"
 "\n"
 "\n"
 "\n"
 "\n"
 "startMongod = function(){\n"
 "\n"
 "var args = createMongoArgs( \"mongod\" , arguments );\n"
 "\n"
 "var dbpath = _parsePath.apply( null, args );\n"
 "resetDbpath( dbpath );\n"
 "\n"
 "return startMongoProgram.apply( null, args );\n"
 "}\n"
 "\n"
 "startMongos = function(){\n"
 "return startMongoProgram.apply( null, createMongoArgs( \"mongos\" , arguments ) );\n"
 "}\n"
 "\n"
 "\n"
 "\n"
 "\n"
 "\n"
 "startMongoProgram = function(){\n"
 "var port = _parsePort.apply( null, arguments );\n"
 "\n"
 "_startMongoProgram.apply( null, arguments );\n"
 "\n"
 "var m;\n"
 "assert.soon\n"
 "( function() {\n"
 "try {\n"
 "m = new Mongo( \"127.0.0.1:\" + port );\n"
 "return true;\n"
 "} catch( e ) {\n"
 "}\n"
 "return false;\n"
 "}, \"unable to connect to mongo program on port \" + port, 10000 );\n"
 "\n"
 "return m;\n"
 "}\n"
 "\n"
 "\n"
 "\n"
 "\n"
 "startMongoProgramNoConnect = function() {\n"
 "return _startMongoProgram.apply( null, arguments );\n"
 "}\n"
 "\n"
 "myPort = function() {\n"
 "var m = db.getMongo();\n"
 "if ( m.host.match( /:/ ) )\n"
 "return m.host.match( /:(.*)/ )[ 1 ];\n"
 "else\n"
 "return 27017;\n"
 "}\n"
 "\n"
 "ShardingTest = function( testName , numServers , verboseLevel , numMongos ){\n"
 "this._connections = [];\n"
 "this._serverNames = [];\n"
 "\n"
 "for ( var i=0; i<numServers; i++){\n"
 "var conn = startMongod( { port : 30000 + i , dbpath : \"/data/db/\" + testName + i } );\n"
 "conn.name = \"localhost:\" + ( 30000 + i );\n"
 "\n"
 "this._connections.push( conn );\n"
 "this._serverNames.push( conn.name );\n"
 "}\n"
 "\n"
 "this._configDB = \"localhost:30000\";\n"
 "\n"
 "\n"
 "this._mongos = [];\n"
 "var startMongosPort = 39999;\n"
 "for ( var i=0; i<(numMongos||1); i++ ){\n"
 "var myPort =  startMongosPort - i;\n"
 "var conn = startMongos( { port : startMongosPort - i , v : verboseLevel || 0 , configdb : this._configDB }  );\n"
 "conn.name = \"localhost:\" + myPort;\n"
 "this._mongos.push( conn );\n"
 "if ( i == 0 )\n"
 "this.s = conn;\n"
 "}\n"
 "\n"
 "var admin = this.admin = this.s.getDB( \"admin\" );\n"
 "this.config = this.s.getDB( \"config\" );\n"
 "\n"
 "this._serverNames.forEach(\n"
 "function(z){\n"
 "admin.runCommand( { addserver : z } );\n"
 "}\n"
 ");\n"
 "}\n"
 "\n"
 "ShardingTest.prototype.getDB = function( name ){\n"
 "return this.s.getDB( name );\n"
 "}\n"
 "\n"
 "ShardingTest.prototype.getServerName = function( dbname ){\n"
 "return this.config.databases.findOne( { name : dbname } ).primary;\n"
 "}\n"
 "\n"
 "ShardingTest.prototype.getServer = function( dbname ){\n"
 "var name = this.getServerName( dbname );\n"
 "for ( var i=0; i<this._serverNames.length; i++ ){\n"
 "if ( name == this._serverNames[i] )\n"
 "return this._connections[i];\n"
 "}\n"
 "throw \"can't find server for: \" + dbname + \" name:\" + name;\n"
 "\n"
 "}\n"
 "\n"
 "ShardingTest.prototype.getOther = function( one ){\n"
 "if ( this._connections.length != 2 )\n"
 "throw \"getOther only works with 2 servers\";\n"
 "\n"
 "if ( this._connections[0] == one )\n"
 "return this._connections[1];\n"
 "return this._connections[0];\n"
 "}\n"
 "\n"
 "ShardingTest.prototype.stop = function(){\n"
 "for ( var i=0; i<this._mongos.length; i++ ){\n"
 "stopMongoProgram( 39999 - i );\n"
 "}\n"
 "for ( var i=0; i<this._connections.length; i++){\n"
 "stopMongod( 30000 + i );\n"
 "}\n"
 "}\n"
 "\n"
 "ShardingTest.prototype.adminCommand = function(cmd){\n"
 "var res = this.admin.runCommand( cmd );\n"
 "if ( res && res.ok == 1 )\n"
 "return true;\n"
 "\n"
 "throw \"command \" + tojson( cmd ) + \" failed: \" + tojson( res );\n"
 "}\n"
 "\n"
 "MongodRunner = function( port, dbpath, peer, arbiter, extraArgs ) {\n"
 "this.port_ = port;\n"
 "this.dbpath_ = dbpath;\n"
 "this.peer_ = peer;\n"
 "this.arbiter_ = arbiter;\n"
 "this.extraArgs_ = extraArgs;\n"
 "}\n"
 "\n"
 "MongodRunner.prototype.start = function( reuseData ) {\n"
 "var args = [];\n"
 "if ( reuseData ) {\n"
 "args.push( \"mongod\" );\n"
 "}\n"
 "args.push( \"--port\" );\n"
 "args.push( this.port_ );\n"
 "args.push( \"--dbpath\" );\n"
 "args.push( this.dbpath_ );\n"
 "if ( this.peer_ && this.arbiter_ ) {\n"
 "args.push( \"--pairwith\" );\n"
 "args.push( this.peer_ );\n"
 "args.push( this.arbiter_ );\n"
 "args.push( \"--oplogSize\" );\n"
 "\n"
 "args.push( \"1\" );\n"
 "}\n"
 "args.push( \"--nohttpinterface\" );\n"
 "args.push( \"--bind_ip\" );\n"
 "args.push( \"127.0.0.1\" );\n"
 "if ( this.extraArgs_ ) {\n"
 "args = args.concat( this.extraArgs_ );\n"
 "}\n"
 "if ( reuseData ) {\n"
 "return startMongoProgram.apply( null, args );\n"
 "} else {\n"
 "return startMongod.apply( null, args );\n"
 "}\n"
 "}\n"
 "\n"
 "MongodRunner.prototype.port = function() { return this.port_; }\n"
 "\n"
 "MongodRunner.prototype.toString = function() { return [ this.port_, this.dbpath_, this.peer_, this.arbiter_ ].toString(); }\n"
 "\n"
 "ReplPair = function( left, right, arbiter ) {\n"
 "this.left_ = left;\n"
 "this.leftC_ = null;\n"
 "this.right_ = right;\n"
 "this.rightC_ = null;\n"
 "this.arbiter_ = arbiter;\n"
 "this.arbiterC_ = null;\n"
 "this.master_ = null;\n"
 "this.slave_ = null;\n"
 "}\n"
 "\n"
 "ReplPair.prototype.start = function( reuseData ) {\n"
 "if ( this.arbiterC_ == null ) {\n"
 "this.arbiterC_ = this.arbiter_.start();\n"
 "}\n"
 "if ( this.leftC_ == null ) {\n"
 "this.leftC_ = this.left_.start( reuseData );\n"
 "}\n"
 "if ( this.rightC_ == null ) {\n"
 "this.rightC_ = this.right_.start( reuseData );\n"
 "}\n"
 "}\n"
 "\n"
 "ReplPair.prototype.isMaster = function( mongo, debug ) {\n"
 "var im = mongo.getDB( \"admin\" ).runCommand( { ismaster : 1 } );\n"
 "assert( im && im.ok, \"command ismaster failed\" );\n"
 "if ( debug ) {\n"
 "printjson( im );\n"
 "}\n"
 "return im.ismaster;\n"
 "}\n"
 "\n"
 "ReplPair.prototype.isInitialSyncComplete = function( mongo, debug ) {\n"
 "var isc = mongo.getDB( \"admin\" ).runCommand( { isinitialsynccomplete : 1 } );\n"
 "assert( isc && isc.ok, \"command isinitialsynccomplete failed\" );\n"
 "if ( debug ) {\n"
 "printjson( isc );\n"
 "}\n"
 "return isc.initialsynccomplete;\n"
 "}\n"
 "\n"
 "ReplPair.prototype.checkSteadyState = function( state, expectedMasterHost, twoMasterOk, leftValues, rightValues, debug ) {\n"
 "leftValues = leftValues || {};\n"
 "rightValues = rightValues || {};\n"
 "\n"
 "var lm = null;\n"
 "var lisc = null;\n"
 "if ( this.leftC_ != null ) {\n"
 "lm = this.isMaster( this.leftC_, debug );\n"
 "leftValues[ lm ] = true;\n"
 "lisc = this.isInitialSyncComplete( this.leftC_, debug );\n"
 "}\n"
 "var rm = null;\n"
 "var risc = null;\n"
 "if ( this.rightC_ != null ) {\n"
 "rm = this.isMaster( this.rightC_, debug );\n"
 "rightValues[ rm ] = true;\n"
 "risc = this.isInitialSyncComplete( this.rightC_, debug );\n"
 "}\n"
 "\n"
 "var stateSet = {}\n"
 "state.forEach( function( i ) { stateSet[ i ] = true; } );\n"
 "if ( !( 1 in stateSet ) || ( ( risc || risc == null ) && ( lisc || lisc == null ) ) ) {\n"
 "if ( rm == 1 && lm != 1 ) {\n"
 "assert( twoMasterOk || !( 1 in leftValues ) );\n"
 "this.master_ = this.rightC_;\n"
 "this.slave_ = this.leftC_;\n"
 "} else if ( lm == 1 && rm != 1 ) {\n"
 "assert( twoMasterOk || !( 1 in rightValues ) );\n"
 "this.master_ = this.leftC_;\n"
 "this.slave_ = this.rightC_;\n"
 "}\n"
 "if ( !twoMasterOk ) {\n"
 "assert( lm != 1 || rm != 1, \"two masters\" );\n"
 "}\n"
 "\n"
 "if ( state.sort().toString() == [ lm, rm ].sort().toString() ) {\n"
 "if ( expectedMasterHost != null ) {\n"
 "if( expectedMasterHost == this.master_.host ) {\n"
 "return true;\n"
 "}\n"
 "} else {\n"
 "return true;\n"
 "}\n"
 "}\n"
 "}\n"
 "\n"
 "this.master_ = null;\n"
 "this.slave_ = null;\n"
 "return false;\n"
 "}\n"
 "\n"
 "ReplPair.prototype.waitForSteadyState = function( state, expectedMasterHost, twoMasterOk, debug ) {\n"
 "state = state || [ 1, 0 ];\n"
 "twoMasterOk = twoMasterOk || false;\n"
 "var rp = this;\n"
 "var leftValues = {};\n"
 "var rightValues = {};\n"
 "assert.soon( function() { return rp.checkSteadyState( state, expectedMasterHost, twoMasterOk, leftValues, rightValues, debug ); },\n"
 "\"rp (\" + rp + \") failed to reach expected steady state (\" + state + \")\" );\n"
 "}\n"
 "\n"
 "ReplPair.prototype.master = function() { return this.master_; }\n"
 "ReplPair.prototype.slave = function() { return this.slave_; }\n"
 "ReplPair.prototype.right = function() { return this.rightC_; }\n"
 "ReplPair.prototype.left = function() { return this.leftC_; }\n"
 "\n"
 "ReplPair.prototype.killNode = function( mongo, signal ) {\n"
 "signal = signal || 15;\n"
 "if ( this.leftC_ != null && this.leftC_.host == mongo.host ) {\n"
 "stopMongod( this.left_.port_ );\n"
 "this.leftC_ = null;\n"
 "}\n"
 "if ( this.rightC_ != null && this.rightC_.host == mongo.host ) {\n"
 "stopMongod( this.right_.port_ );\n"
 "this.rightC_ = null;\n"
 "}\n"
 "}\n"
 "\n"
 "ReplPair.prototype._annotatedNode = function( mongo ) {\n"
 "var ret = \"\";\n"
 "if ( mongo != null ) {\n"
 "ret += \" (connected)\";\n"
 "if ( this.master_ != null && mongo.host == this.master_.host ) {\n"
 "ret += \"(master)\";\n"
 "}\n"
 "if ( this.slave_ != null && mongo.host == this.slave_.host ) {\n"
 "ret += \"(slave)\";\n"
 "}\n"
 "}\n"
 "return ret;\n"
 "}\n"
 "\n"
 "ReplPair.prototype.toString = function() {\n"
 "var ret = \"\";\n"
 "ret += \"left: \" + this.left_;\n"
 "ret += \" \" + this._annotatedNode( this.leftC_ );\n"
 "ret += \" right: \" + this.right_;\n"
 "ret += \" \" + this._annotatedNode( this.rightC_ );\n"
 "return ret;\n"
 "}\n"
 "\n"
 "friendlyEqual = function( a , b ){\n"
 "if ( a == b )\n"
 "return true;\n"
 "\n"
 "if ( tojson( a ) == tojson( b ) )\n"
 "return true;\n"
 "\n"
 "return false;\n"
 "}\n"
 "\n"
 "\n"
 "assert = function( b , msg ){\n"
 "if ( b )\n"
 "return;\n"
 "\n"
 "throw \"assert failed : \" + msg;\n"
 "}\n"
 "\n"
 "assert.eq = function( a , b , msg ){\n"
 "if ( a == b )\n"
 "return;\n"
 "\n"
 "if ( ( a != null && b != null ) && friendlyEqual( a , b ) )\n"
 "return;\n"
 "\n"
 "throw \"[\" + tojson( a ) + \"] != [\" + tojson( b ) + \"] are not equal : \" + msg;\n"
 "}\n"
 "\n"
 "assert.neq = function( a , b , msg ){\n"
 "if ( a != b )\n"
 "return;\n"
 "\n"
 "throw \"[\" + a + \"] != [\" + b + \"] are equal : \" + msg;\n"
 "}\n"
 "\n"
 "assert.soon = function( f, msg, timeout, interval ) {\n"
 "var start = new Date();\n"
 "timeout = timeout || 30000;\n"
 "interval = interval || 200;\n"
 "var last;\n"
 "while( 1 ) {\n"
 "if ( f() )\n"
 "return;\n"
 "if ( ( new Date() ).getTime() - start.getTime() > timeout )\n"
 "throw \"assert.soon failed: \" + f + \", msg:\" + msg;\n"
 "sleep( interval );\n"
 "}\n"
 "}\n"
 "\n"
 "assert.throws = function( func , params , msg ){\n"
 "\n"
 "try {\n"
 "func.apply( null , params );\n"
 "}\n"
 "catch ( e ){\n"
 "return e;\n"
 "}\n"
 "\n"
 "throw \"did not throw exception: \" + msg ;\n"
 "}\n"
 "\n"
 "assert.commandWorked = function( res , msg ){\n"
 "if ( res.ok == 1 )\n"
 "return;\n"
 "\n"
 "throw \"command failed: \" + tojson( res ) + \" : \" + msg;\n"
 "}\n"
 "\n"
 "assert.commandFailed = function( res , msg ){\n"
 "if ( res.ok == 0 )\n"
 "return;\n"
 "\n"
 "throw \"command worked when it should have failed: \" + tojson( res ) + \" : \" + msg;\n"
 "}\n"
 "\n"
 "assert.isnull = function( what , msg ){\n"
 "if ( what == null )\n"
 "return;\n"
 "\n"
 "throw \"supposed to null (\" + ( msg || \"\" ) + \") was: \" + tojson( what );\n"
 "}\n"
 "\n"
 "assert.lt = function( a , b , msg ){\n"
 "if ( a < b )\n"
 "return;\n"
 "throw a + \" is not less than \" + b + \" : \" + msg;\n"
 "}\n"
 "\n"
 "assert.gt = function( a , b , msg ){\n"
 "if ( a > b )\n"
 "return;\n"
 "throw a + \" is not greater than \" + b + \" : \" + msg;\n"
 "}\n"
 "\n"
 "Object.extend = function( dst , src ){\n"
 "for ( var k in src ){\n"
 "dst[k] = src[k];\n"
 "}\n"
 "return dst;\n"
 "}\n"
 "\n"
 "argumentsToArray = function( a ){\n"
 "var arr = [];\n"
 "for ( var i=0; i<a.length; i++ )\n"
 "arr[i] = a[i];\n"
 "return arr;\n"
 "}\n"
 "\n"
 "isString = function( x ){\n"
 "return typeof( x ) == \"string\";\n"
 "}\n"
 "\n"
 "isNumber = function(x){\n"
 "return typeof( x ) == \"number\";\n"
 "}\n"
 "\n"
 "isObject = function( x ){\n"
 "return typeof( x ) == \"object\";\n"
 "}\n"
 "\n"
 "String.prototype.trim = function() {\n"
 "return this.replace(/^\\s+|\\s+$/g,\"\");\n"
 "}\n"
 "String.prototype.ltrim = function() {\n"
 "return this.replace(/^\\s+/,\"\");\n"
 "}\n"
 "String.prototype.rtrim = function() {\n"
 "return this.replace(/\\s+$/,\"\");\n"
 "}\n"
 "\n"
 "Date.timeFunc = function( theFunc , numTimes ){\n"
 "\n"
 "var start = new Date();\n"
 "\n"
 "numTimes = numTimes || 1;\n"
 "for ( var i=0; i<numTimes; i++ ){\n"
 "theFunc.apply( null , argumentsToArray( arguments ).slice( 2 ) );\n"
 "}\n"
 "\n"
 "return (new Date()).getTime() - start.getTime();\n"
 "}\n"
 "\n"
 "Date.prototype.tojson = function(){\n"
 "return \"\\\"\" + this.toString() + \"\\\"\";\n"
 "}\n"
 "\n"
 "RegExp.prototype.tojson = RegExp.prototype.toString;\n"
 "\n"
 "Array.prototype.contains = function( x ){\n"
 "for ( var i=0; i<this.length; i++ ){\n"
 "if ( this[i] == x )\n"
 "return true;\n"
 "}\n"
 "return false;\n"
 "}\n"
 "\n"
 "Array.prototype.unique = function( ){\n"
 "var u = [];\n"
 "for ( var i=0; i<this.length; i++){\n"
 "var o = this[i];\n"
 "if ( ! u.contains( o ) )\n"
 "u.push( o );\n"
 "}\n"
 "return u;\n"
 "}\n"
 "\n"
 "Array.prototype.tojson = function( sepLines ){\n"
 "var s = \"[\";\n"
 "if ( sepLines ) s += \"\\n\";\n"
 "for ( var i=0; i<this.length; i++){\n"
 "if ( i > 0 ){\n"
 "s += \",\";\n"
 "if ( sepLines ) s += \"\\n\";\n"
 "}\n"
 "s += tojson( this[i] );\n"
 "}\n"
 "s += \"]\";\n"
 "if ( sepLines ) s += \"\\n\";\n"
 "return s;\n"
 "}\n"
 "\n"
 "if ( ! ObjectId.prototype )\n"
 "ObjectId.prototype = {}\n"
 "\n"
 "ObjectId.prototype.toString = function(){\n"
 "return this.str;\n"
 "}\n"
 "\n"
 "ObjectId.prototype.tojson = function(){\n"
 "return \"\\\"\" + this.str + \"\\\"\";\n"
 "}\n"
 "\n"
 "ObjectId.prototype.isObjectId = true;\n"
 "\n"
 "DBRef.prototype.fetch = function(){\n"
 "assert( this.ns , \"need a ns\" );\n"
 "assert( this.id , \"need an id\" );\n"
 "\n"
 "return db[ this.ns ].findOne( { _id : this.id } );\n"
 "}\n"
 "\n"
 "DBRef.prototype.tojson = function(){\n"
 "return \"{ 'ns' : \\\"\" + this.ns + \"\\\" , 'id' : \\\"\" + this.id + \"\\\" } \";\n"
 "}\n"
 "\n"
 "DBRef.prototype.toString = function(){\n"
 "return \"DBRef \" + this.ns + \":\" + this.id;\n"
 "}\n"
 "\n"
 "BinData.prototype.tojson = function(){\n"
 "return \"BinData type: \" + this.type + \" len: \" + this.len;\n"
 "}\n"
 "\n"
 "tojson = function( x ){\n"
 "if ( x == null || x == undefined )\n"
 "return \"\";\n"
 "\n"
 "switch ( typeof x ){\n"
 "\n"
 "case \"string\":\n"
 "return \"\\\"\" + x + \"\\\"\";\n"
 "\n"
 "case \"number\":\n"
 "case \"boolean\":\n"
 "return \"\" + x;\n"
 "\n"
 "case \"object\":\n"
 "return tojsonObject( x );\n"
 "\n"
 "case \"function\":\n"
 "return x.toString();\n"
 "\n"
 "\n"
 "default:\n"
 "throw \"tojson can't handle type \" + ( typeof x );\n"
 "}\n"
 "\n"
 "}\n"
 "\n"
 "tojsonObject = function( x ){\n"
 "assert.eq( ( typeof x ) , \"object\" , \"tojsonObject needs object, not [\" + ( typeof x ) + \"]\" );\n"
 "\n"
 "if ( typeof( x.tojson ) == \"function\" && x.tojson != tojson )\n"
 "return x.tojson();\n"
 "\n"
 "var s = \"{\";\n"
 "\n"
 "var first = true;\n"
 "for ( var k in x ){\n"
 "\n"
 "var val = x[k];\n"
 "if ( val == DB.prototype || val == DBCollection.prototype )\n"
 "continue;\n"
 "\n"
 "if ( first ) first = false;\n"
 "else s += \" , \";\n"
 "\n"
 "s += \"\\\"\" + k + \"\\\" : \" + tojson( val );\n"
 "}\n"
 "\n"
 "return s + \"}\";\n"
 "}\n"
 "\n"
 "shellPrint = function( x ){\n"
 "it = x;\n"
 "if ( x != undefined )\n"
 "shellPrintHelper( x );\n"
 "\n"
 "if ( db ){\n"
 "var e = db.getPrevError();\n"
 "if ( e.err ) {\n"
 "if( e.nPrev <= 1 )\n"
 "print( \"error on last call: \" + tojson( e.err ) );\n"
 "else\n"
 "print( \"an error \" + tojson(e.err) + \" occurred \" + e.nPrev + \" operations back in the command invocation\" );\n"
 "}\n"
 "db.resetError();\n"
 "}\n"
 "}\n"
 "\n"
 "printjson = function(x){\n"
 "print( tojson( x ) );\n"
 "}\n"
 "\n"
 "shellPrintHelper = function( x ){\n"
 "\n"
 "if ( typeof( x ) == \"undefined\" )\n"
 "return;\n"
 "\n"
 "if ( x == null ){\n"
 "print( \"null\" );\n"
 "return;\n"
 "}\n"
 "\n"
 "if ( typeof x != \"object\" )\n"
 "return print( x );\n"
 "\n"
 "var p = x.shellPrint;\n"
 "if ( typeof p == \"function\" )\n"
 "return x.shellPrint();\n"
 "\n"
 "var p = x.tojson;\n"
 "if ( typeof p == \"function\" )\n"
 "print( x.tojson() );\n"
 "else\n"
 "print( tojson( x ) );\n"
 "}\n"
 "\n"
 "execShellLine = function(){\n"
 "var l = __line__.trim();\n"
 "\n"
 "var cmd = l.substring( 0 , ( l.indexOf( \" \" ) || l.length ) );\n"
 "if ( cmd.length == 0 )\n"
 "cmd = l;\n"
 "\n"
 "if ( shellHelper[ cmd ] ){\n"
 "shellHelper( cmd , l.substring( cmd.length + 1 ).trim() );\n"
 "return;\n"
 "}\n"
 "\n"
 "var res = eval( l );\n"
 "if ( typeof( res ) != \"undefined\" ){\n"
 "shellPrintHelper( res );\n"
 "}\n"
 "}\n"
 "\n"
 "shellHelper = function( command , rest ){\n"
 "command = command.trim();\n"
 "var args = rest.trim().replace(/;$/,\"\").split( \"\\s+\" );\n"
 "\n"
 "if ( ! shellHelper[command] )\n"
 "throw \"no command [\" + command + \"]\";\n"
 "\n"
 "return shellHelper[command].apply( null , args );\n"
 "}\n"
 "\n"
 "help = shellHelper.help = function(){\n"
 "print( \"HELP\" );\n"
 "print( \"\\t\" + \"show dbs                     show database names\");\n"
 "print( \"\\t\" + \"show collections             show collections in current database\");\n"
 "print( \"\\t\" + \"show users                   show users in current database\");\n"
 "print( \"\\t\" + \"show profile                 show most recent system.profile entries with time >= 1ms\");\n"
 "print( \"\\t\" + \"use <db name>                set curent database to <db name>\" );\n"
 "print( \"\\t\" + \"db.help()                    help on DB methods\");\n"
 "print( \"\\t\" + \"db.foo.help()                help on collection methods\");\n"
 "print( \"\\t\" + \"db.foo.find()                list objects in collection foo\" );\n"
 "print( \"\\t\" + \"db.foo.find( { a : 1 } )     list objects in foo where a == 1\" );\n"
 "print( \"\\t\" + \"it                           result of the last line evaluated; use to further iterate\");\n"
 "}\n"
 "\n"
 "shellHelper.use = function( dbname ){\n"
 "db = db.getMongo().getDB( dbname );\n"
 "print( \"switched to db \" + db.getName() );\n"
 "}\n"
 "\n"
 "shellHelper.show = function( what ){\n"
 "assert( typeof what == \"string\" );\n"
 "\n"
 "if( what == \"profile\" ) {\n"
 "if( db.system.profile.count() == 0 ) {\n"
 "print(\"db.system.profile is empty\");\n"
 "print(\"Use db.setProfilingLevel(2) will enable profiling\");\n"
 "print(\"Use db.system.profile.find() to show raw profile entries\");\n"
 "}\n"
 "else {\n"
 "print();\n"
 "db.system.profile.find({ millis : { $gt : 0 } }).sort({$natural:-1}).limit(5).forEach( function(x){print(\"\"+x.millis+\"ms \" + String(x.ts).substring(0,24)); print(x.info); print(\"\\n\");} )\n"
 "}\n"
 "return \"\";\n"
 "}\n"
 "\n"
 "if ( what == \"users\" ){\n"
 "db.system.users.find().forEach( printjson );\n"
 "return \"\";\n"
 "}\n"
 "\n"
 "if ( what == \"collections\" || what == \"tables\" ) {\n"
 "db.getCollectionNames().forEach( function(x){print(x)} );\n"
 "return \"\";\n"
 "}\n"
 "\n"
 "if ( what == \"dbs\" ) {\n"
 "db.getMongo().getDBNames().sort().forEach( function(x){print(x)} );\n"
 "return \"\";\n"
 "}\n"
 "\n"
 "throw \"don't know how to show [\" + what + \"]\";\n"
 "\n"
 "}\n"
 "\n"
 "if ( typeof( Map ) == \"undefined\" ){\n"
 "Map = function(){\n"
 "this._data = [];\n"
 "}\n"
 "}\n"
 "\n"
 "Map.prototype.put = function( key , value ){\n"
 "var o = this._get( key );\n"
 "var old = o.value;\n"
 "o.value = value;\n"
 "return old;\n"
 "}\n"
 "\n"
 "Map.prototype.get = function( key ){\n"
 "return this._get( key ).value;\n"
 "}\n"
 "\n"
 "Map.prototype._get = function( key ){\n"
 "for ( var i=0; i<this._data.length; i++ ){\n"
 "if ( friendlyEqual( key , this._data[i].key ) ){\n"
 "return this._data[i];\n"
 "}\n"
 "}\n"
 "var o = { key : key , value : null };\n"
 "this._data.push( o );\n"
 "return o;\n"
 "}\n"
 "\n"
 "Map.prototype.values = function(){\n"
 "return this._data.map( function(z){ return z.value } );\n"
 "}\n"
 "\n"
 "Math.sigFig = function( x , N ){\n"
 "if ( ! N ){\n"
 "N = 3;\n"
 "}\n"
 "var p = Math.pow( 10, N - Math.ceil( Math.log( Math.abs(x) ) / Math.log( 10 )) );\n"
 "return Math.round(x*p)/p;\n"
 "}\n"
 ;

