ActionScript 3.0 :: Detecting A DataFormat Without Loading The Whole File?
Jan 17, 2010
I need to support loading a file that has an ASCII version and a binary version, both with the same extension. I can see two ways of going about this, but I'm not sure which one would be better:Detect the format after the entire file is loaded, and reload it if I guessed the wrong format when I started loading it.Detect the format as it's loading, and start the load over with the proper format if I guessed wrong at first.If I load the entire file with URLLoaderDataFormat set to TEXT, and it ends up being binary, do I need to reload the entire file, or is there a simple chunk of code that can convert back and forth between BINARY and TEXT formats in ActionScript? This would be ideal, so I never have to load the file twice.
In terms of detecting whether a file is BINARY or TEXT, my method would be to read the first five characters in the file and see if it's a word that appears at the top of all ASCII files in this format. If it's not, then I assume it's BINARY.I'm a little new to working with BINARY data in flash, so I'm sorry if this is a stupid question.
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