c# barcode generator free Figure 13 12. FileMerge side-by-side comparison in Objective-C

Attach gs1 datamatrix barcode in Objective-C Figure 13 12. FileMerge side-by-side comparison

In this section, we ll cover the details of how PowerShell scripts are parsed. Before the PowerShell interpreter can execute the commands you type, it first has to parse the command text and turn it into something the computer can execute. More formally, parsing is the process of turning human-readable source code into a form the computer understands. This is one area of computer science that actually deserves both of these the words computer and science. Science in this case means formal language theory, which is a branch of mathematics. And since it s mathematics, discussing it usually requires a collection of Greek letters. We ll keep things a bit simpler here. A piece of script text is broken up into tokens by the tokenizer (or lexical analyzer if you want to be more technical). A token is a particular type of symbol in the programming language, for example a number, a keyword, or variable. Once the raw text has been broken into a stream of tokens, these tokens are processed into structures in the language through syntactic analysis. In syntactic analysis, the stream of tokens is processed according to the grammatical rules of the language. In normal languages, this process is straightforward a token always has the same meaning. A sequence of digits is always a number; an expression is always an expression, and so on. For example the sequence

Compile errors are errors that occur while the script tries to compile. Compiling scripts is what happens before the script even runs. Typical compile errors are aliases that point to a nonexistent file, two variables in a row, not using a tell block when using application-specific terms, and so on.

Instruments offers quite a lot of useful information about your application and environment that can help you get to the bottom of problems. To see the full range, click on the Library button. Alternatively, you can start up Instruments from the Finder, and then attach it to a running process. Figure 12 10 shows the welcome window.

NOTE: You will see a tab labeled Invitees before the Repeat tab only if your event is set up on an Exchange/Google or MobileMe calendar. We show you how to invite people to meeting and reply to invitations in 4: Other Sync Methods.

NSTextField NSTextField NSDatePicker NSComboBox NSMatrix (containing radio buttons) NSMatrix (containing checkboxes) NSPopUpButton NSLevelIndicator NSImageView NSTextView

<Grid x:Name="OutOfBrowserNavigationControls" VerticalAlignment="Top" HorizontalAlignment="Left" Margin="15"> <Grid.Resources> <Style TargetType="Button"> <Setter Property="Cursor" Value="Hand" /> <Setter Property="Margin" Value="2" /> <Setter Property="Opacity" Value="0.5" /> <Setter Property="VerticalAlignment" Value="Top" /> <Setter Property="Template"> <Setter.Value> <ControlTemplate> <Grid> <VisualStateManager.VisualStateGroups> <VisualStateGroup x:Name="CommonStates"> <VisualState x:Name="Normal" /> <VisualState x:Name="Disabled"> <Storyboard> <DoubleAnimation Duration="0" Storyboard.TargetName="Content" Storyboard.TargetProperty="Opacity" To=".2" /> </Storyboard> </VisualState> </VisualStateGroup> </VisualStateManager.VisualStateGroups> <ContentPresenter x:Name="Content" /> </Grid> </ControlTemplate> </Setter.Value> </Setter> </Style> </Grid.Resources> Navigation <StackPanel Orientation="Horizontal"> button <Button x:Name="BackButton" Click="BackButton_Click" Width="40" Height="40"> <Image Source="Assets/back.png" /> </Button>

Figure 14.11 Some Web Part connection interfaces require that you configure the connections. If necessary, SharePoint will show a dialog box that asks you to configure the connection.

Now, how do you tie these things together How do you establish our web service, and where Which database should you be using How do you communicate with the server Before I knew the answers to these questions, the only thing I knew was that I didn t want to host the solution myself. I ve been doing a lot of LAMP (Linux, Apache, MySQL, PHP) over the years, but I treasure my sleep (with two little kids, even more so) and didn t want to have to worry if my server was up and running. And what about load balancing What if users started playing a lot, which I sure hoped they would Would the solution scale I had no idea until a friend of mine pointed me to Google App Engine. It was a nobrainer: build your web services using the feature-rich and elegant Python scripting language, have your objects stored in a high-performance object datastore, deploy once, and become hosted on Google s own infrastructure with thousands of servers worldwide, maintained and monitored for you. Sounds expensive, right Actually, it s free. What s not to love The service is free up to certain quotas, which, at least for a chess game, seem very generous. Check with the current Google App Engine Terms of Service at http://code.google.com/appengine/terms.html. Over a certain limit of traffic, you ll start being charged. I guess you could say it bears the price of success: more users, more money.

The query in listing 10 will help you find the stored procedures that are causing the most physical read I/O pressure (which means that the data has to be read from your disk subsystem instead of being found in memory). Obviously, adding more RAM to the server will help here, but standard query and index tuning can make a big difference also.

table $keys = ( @{name='7'; action=$handleDigit}, @{name='8'; action=$handleDigit}, @{name='9'; action=$handleDigit}, The Sqr @{name='/'; action = $handleOp}, handler @{name='SQRT'; action = { trap { $resultl.Text = 0; continue } $result.Text = [math]::sqrt([decimal] $result.Text)

-- Rebuild an index with various custom options ALTER INDEX IX_SalesOrderHeader_CustomerID ON Sales.SalesOrderHeader REBUILD WITH ( FILLFACTOR = 80 , PAD_INDEX = ON , MAXDOP = 0 , SORT_IN_TEMPDB = ON , DATA_COMPRESSION = PAGE