ACTIONSCRIPT 3 Developer’s Guide en

ACTIONSCRIPT 3.0 DEVELOPER’S GUIDE
Working with the file system
File.documentsDirectory.resolvePath("test.txt");
File.documentsDirectory.resolvePath("TeSt.TxT");
However, documents and directory names do include capitalization. For example, the following assumes that there is
a folder named AIR Test in the documents directory, as in the following examples:
var file:File = File.documentsDirectory.resolvePath("AIR test");
trace(file.nativePath); // ... AIR test
file.canonicalize();
trace(file.nativePath); // ... AIR Test
The canonicalize() method converts the nativePath object to use the correct capitalization for the file or directory
name. On case sensitive file systems (such as Linux), when multiple files exists with names differing only in case, the
canonicalize() method adjusts the path to match the first file found (in an order determined by the file system).
You can also use the canonicalize() method to convert short file names ("8.3" names) to long file names on
Windows, as in the following examples:
var path:File = new File();
path.nativePath = "C:\\AIR~1";
path.canonicalize();
trace(path.nativePath); // C:\AIR Test
Working with packages and symbolic links
Adobe AIR 1.0 and later
Various operating systems support package files and symbolic link files:
Packages—On Mac OS, directories can be designated as packages and show up in the Mac OS Finder as a single file
rather than as a directory.
Symbolic links—Mac OS, Linux, and Windows Vista support symbolic links. Symbolic links allow a file to point to
another file or directory on disk. Although similar, symbolic links are not the same as aliases. An alias is always
reported as a file (rather than a directory), and reading or writing to an alias or shortcut never affects the original file
or directory that it points to. On the other hand, a symbolic link behaves exactly like the file or directory it points to.
It can be reported as a file or a directory, and reading or writing to a symbolic link affects the file or directory that it
points to, not the symbolic link itself. Additionally, on Windows the isSymbolicLink property for a File object
referencing a junction point (used in the NTFS file system) is set to true.
The File class includes the isPackage and isSymbolicLink properties for checking if a File object references a
package or symbolic link.
The following code iterates through the user’s desktop directory, listing subdirectories that are not packages:
var desktopNodes:Array = File.desktopDirectory.getDirectoryListing();
for (var i:uint = 0; i < desktopNodes.length; i++)
{
if (desktopNodes[i].isDirectory && !!desktopNodes[i].isPackage)
{
trace(desktopNodes[i].name);
}
}
The following code iterates through the user’s desktop directory, listing files and directories that are not symbolic links:
Last updated 6/6/2012
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