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    On 7/8/2016 11:58 PM, Jörg Straube wrote:<br>
    <blockquote cite="mid:1C3AE469-AD02-4821-BB7D-3A954D716A5A@iaeth.ch"
      type="cite"><span style="font-size: 10.000000pt; font-family:
        'ArialMT'">  string = """ {character} """ | digit {hexdigit} "X"
        . </span></blockquote>
    How about dropping the hex representation and leaving character
    abstract?<br>
    <span style="font-size: 10.000000pt; font-family: 'ArialMT'"> 
      string = """ {character} """<br>
    </span><br>
    But then one needs, tab, end-of-line, form-feed, etc, to also be
    abstract.<br>
    <span style="font-size: 10.000000pt; font-family: 'ArialMT'"></span>
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