/[alph]/alph/doc/alphimpl.rst
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revision 1.2 by tjl, Mon May 26 10:45:57 2003 UTC revision 1.3 by tjl, Mon May 26 10:47:34 2003 UTC
# Line 25  URN5 text spans Line 25  URN5 text spans
25  ===============  ===============
26    
27  URN 5 text spans are a relatively new innovation by Benja Fallenstein:  URN 5 text spans are a relatively new innovation by Benja Fallenstein:
28    instead of really having a permanent block of text, we virtualize
29    it by always providing the text with the span, and use URN-5 ids.
30    
31    This has both advantages and disadvantages: on the other hand,
32    some things may be spoofed (unless care is taken),
33    but on the other hand, it makes several operations easier,
34    without having to worry about the text blocks.
35    
36    
37    ..  UML:: alph_textspanimpl_urn
38    
39        class TextSpan "interface"
40    
41        class URNSTextSpan
42            inherit TextSpan
43    
44    XXX URNS should be URN5 in the above diagram!!!
45    
46    
47  Fake text spans  Fake text spans

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