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2011 October Archive at Jozef Chúťka's blog
October 25, 2011
BitmapData extract SampleDataEvent Sound
A Sound In Image Experiment
There are some usefull apis since Flash Player 10, I have never been playing with. Yesterday, I realized one experiment with Sound + SampleDataEvent and created quick demo for converting music into a bitmap and vice versa.
There is a Sound.extract() method in ActionScript allowing you to grab raw sound data from a sound object. It provides you ByteArray of 32-bit floating-point values, which can be converted to a Number using ByteArray.readFloat(). The resulting values are -1 < value < 1...
October 13, 2011
css highlight ISequence parser SequenceParser
SequenceParser – Simple yet Mighty
With my latest approach to create universal parser, I came up with something simple yet mighty. SequenceParser is a simple (30 lines) class that crawles any source and matches specified list of highly customizable ISequences. While each sequence can contain list of nester sequences, you are able to parse any type of source with nested conditions and sequences. A good example can be an attribute inside a xml node, a xml node inside a xml node, an escape character inside quotas etc.
I have also created some example sequences like MatchAnything, MatchRegexp, MatchString, StartRegexpEndRegexp, StartRegexpEndString, StartStringEndString that should help to cover almost any possible parsing scenario. These sequences notifies back via callback containing parsed string, that is vital for further bulding additional logic like highlightning, validation over parsed phrases.