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Assume that you have a grammar specified in BNF (B) and another
grammar specified in terms of a DTD (D). Compare the ease of
developing a DTD from B with the ease of preparing BNF from D. Are
both notations equally powerful? Briefly explain.
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Briefly describe the difference between sgmls and sgmlsasp.
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Assume that you are asked to work for a publisher that has an archive of
tapes, prepared by typesetters when books were being published before
1985. What type of markup is most likely to have been used? What
tools might help you in trying to develop an SGML-type archive from
the existing typesetter tape archive? Briefly comment on the main phases
and problems you would expect.
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Briefly explain the purposes of referential markup.
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Recall edit distance from an earlier unit. How might you use that
idea to develop a measure called grammar distance that indicates
how many types of changes are needed in translating between two
grammars? What tools that are part of ICA might be used to compute
such a measure? Briefly discuss how you might develop such a measure
in terms of the length of the specifications needed for translating with the
ICA tools.