ACTIONSCRIPT 3 Developer’s Guide en

ACTIONSCRIPT 3.0 DEVELOPER’S GUIDE
Working with strings
/**
* Capitalizes the first letter of a single word, unless it's one of
* a set of words that are normally not capitalized in English.
*/
private function capitalizeFirstLetter(word:String):String
{
switch (word)
{
case "and":
case "the":
case "in":
case "an":
case "or":
case "at":
case "of":
case "a":
// Don't do anything to these words.
break;
default:
// For any other word, capitalize the first character.
var firstLetter:String = word.substr(0, 1);
firstLetter = firstLetter.toUpperCase();
var otherLetters:String = word.substring(1);
word = firstLetter + otherLetters;
}
return word;
}
In English, the initial character of each word in a title is not capitalized if it is one of the following words: “and,” “the,”
“in,” “an,” “or,” “at,” “of,” or “a.” (This is a simplified version of the rules.) To execute this logic, the code first uses a
switch statement to check if the word is one of the words that should not be capitalized. If so, the code simply jumps
out of the switch statement. On the other hand, if the word should be capitalized, that is done in several steps, as
follows:
1 The first letter of the word is extracted using substr(0, 1), which extracts a substring starting with the character
at index 0 (the first letter in the string, as indicated by the first parameter 0). The substring will be one character in
length (indicated by the second parameter 1).
2 That character is capitalized using the toUpperCase() method.
3 The remaining characters of the original word are extracted using substring(1), which extracts a substring
starting at index 1 (the second letter) through the end of the string (indicated by leaving off the second parameter
of the substring() method).
4 The final word is created by combining the newly capitalized first letter with the remaining letters using string
concatenation: firstLetter + otherLetters.
Generating the ASCII art text
Flash Player 9 and later, Adobe AIR 1.0 and later
The BitmapToAsciiConverter class provides the functionality of converting a bitmap image to its ASCII text
representation. This process is performed by the parseBitmapData() method, which is partially shown here:
Last updated 6/6/2012
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