A Unicode text file containing some Private Use Area codes for customizing an interactive multimedia DVB-MHP application which includes score counting and display.
 
This file is not a Unicode text file, it is an ordinary 8-bit text file, provided as documentation of the experiment.  The Unicode text file of the experiment is the unitest5.txt file.
 
The experiment is a supplement to the experiment described in the file text7005.txt.
 
The idea is that eight additional Private Use Area characters are defined which add a score counting and display feature to the interactive multimedia application customizations possible using Unicode text files used as data for Java programs which implement the codes defined in this series of documents. 
 
U+EBE0, decimal 60384, SET SCORE TO ZERO
U+EBE1, decimal 60385, SET ASKED TO ZERO
U+EBE2, decimal 60386, ADD ONE TO SCORE
U+EBE3, decimal 60387, ADD ONE TO ASKED
U+EBE4, decimal 60388, SUBTRACT ONE FROM SCORE 
U+EBE5, decimal 60389, SUBTRACT ONE FROM ASKED 
U+EBE6, decimal 60390, COPY VALUE OF SCORE INTO THE TEXT STREAM
U+EBE7, decimal 60391, COPY VALUE OF ASKED INTO THE TEXT STREAM
 
The file unitest5.txt can conveniently be displayed on a PC using the Microsoft WordPad program provided that the version of WordPad can support a Unicode text file.  The file unitest5.txt was prepared on a Windows 98 PC system.  It is a copy of the unitest4.txt file with some of the characters listed above added.  Using the Quest text font, at least version 1.08, allows the authoring-time symbols for these Private Use Area codes to be displayed as symbols.  Please note that version 1.08 of the Quest text font contains symbols for all of the characters used in the experiment described in the text7005.txt file and also symbols for the eight characters listed above.  The 1.08 version of the Quest text font can be used for the previous experiment, but the previous 1.07 version is unsuitable for displaying all of the information content of the unitest5.txt file as some of the characters used in the unitest5.txt file will then simply display using the default glyph of the font.  I find that using 12 point Quest text in WordPad is a suitable size as the Quest text font is designed to be clear at 12 point particularly.
 
The font is available for download from the following web page.
 
http://www.users.globalnet.co.uk/~ngo/font7007.htm
 
Please note that these particular assignments of these Private Use Area codes are produced by the present author.  Other researchers in other contexts may choose to assign them differently.  However, if people do choose to use the codes which I have specified in relation to DVB-MHP broadcasting then that is fine and will help interoperability.  Please note also that these Private Use Area code meanings have no status within the DVB-MHP specification.  They only have validity in those application programs which recognize their use within that program.
 
Hopefully this experiment will be of interest to readers and will be a catalyst towards progress.
  
William Overington
 
29 May 2003