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Instead of overwhelming jurors with 3 million documents, Mark now guided them along what appeared to be a very simple story as he introduced the three most important parts of the case, which he then explained in more detail as his presentation moved forward Now the jurors could relax as they listened and watched the story unfold In any presentation, the audience can t possibly remember all the information they see and hear, but it helps if you give them graphical cues to the presentation s organization and the slides relative importance The look of these three slides was based on the style of the earlier summary slide, carrying forward the story visually to complement Mark s verbal explanation.

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If you re using the Oliver Twist text and want your results to match up roughly with those given as examples throughout this chapter, make sure you only copy and paste the text including and between these sections:

Among other public buildings in a certain town, which for many reasons it will be prudent to refrain from mentioning

And:

The simple split-screen layout of the slides, the use of the striking red color, and the consistent graphical style ensured that when these slides appeared, they would stand out as the most important among all of the other slides You ll learn more about how to apply these techniques when you sketch your own storyboard in 7..

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Oliver cried lustily. If he could have known that he was an orphan, left to the tender mercies of church-wardens and overseers, perhaps he would have cried the louder.

Now it s time to get coding! The first step is to load the file. Ruby provides a comprehensive set of file manipulation methods via the File class. Whereas other languages can make you jump through hoops to work with files, Ruby keeps the interface simple. Here s some code that opens up your text.txt file:

1

File.open("text.txt").each { |line| puts line }

Type this into analyzer.rb and run the code. If text.txt is in the current directory, the result is that you ll see the entire text file flying up the screen. You re asking the File class to open up text.txt, and then, much like with an array, you can call the each method on the file directly, resulting in each line being passed to the inner code block one by one, where puts sends the line as output to the screen. (In 9 you ll look at how file access and manipulation work in more detail, along with better techniques than are used in this chapter!) Edit the code to look like this instead:

FIGURE 1-12 As he introduced each of the three sections of the opening statement, Mark displayed slides that carried forward the theme from the earlier summary slide, including the red backgrounds on the left half of each slide.

The standard Python environment Windows-oriented environment Feature-packed; contains Pythonwin IDE Commercial IDE Commercial IDE Commercial IDE and (Qt) GUI builder Free IDE and GUI builder Versatile IDE for Linux/UNIX Commercial IDE Commercial IDE Commercial IDE Popular, flexible, open source IDE Free IDE using Qt Cross-language IDE for KDE Free GUI builder Commercial GUI builder Free GUI builder

You initialize line_count to store the line count, then open the file and iterate over each line, while incrementing line_count by 1 each time. When you re done, you print the total to the screen (approximately 121 if you re using the Oliver Twist chapter). You have your first statistic! You ve counted the lines, but still don t have access to the contents of the file to count the words, paragraphs, sentences, and so forth. This is easy to fix. Let s change the code a little, and add a variable, text, to collect the lines together as one as we go:

text='' line_count = 0 File.open("text.txt").each do |line| line_count += 1 text << line end puts "#{line_count} lines"

7

Note Remember that using { and } to surround blocks is the standard style for single line blocks, but

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using do and end is preferable for multiline blocks. However, this is a convention rather than a requirement.