Dmitry Turin wrote:
Good day, Richard.
RH> With 7 flights it is easy to see if #2 matches #4. With 700 it is not so
RH> easy to see #2 matches #504. With a tree-structure it is impossible to
RH> sort leaf nodes without restructuring the tree.
What is "#2 matches #4" ?
Individual flights might occur in one or more options when building a
flight-plan.
What sorting are you imply ?
None.
To be in safe side:
TML allow table as particular case of tree
(when records of one table, i.e. nodes, have not sub-records, i.e. sub-nodes).
RH> Never heard of eHTML, and I don't believe you can build a public-facing
RH> website with it unless it's at least as complicated as php.
I try
http://lists.w3.org/Archives/Public/public-html/2007Apr/1384.html
http://lists.w3.org/Archives/Public/public-html/2007Apr/1380.html
Nothing there to build a website with - by which I mean the logic
required for an interactive website.
No. html-page send xml-data to TML-function "main".
Without any PHP.
RH> But it can't. It's HTML. You can't map arbitrary user-interface (e.g.
RH> perhaps I want users to click on a map of the world to pick cities) to a
RH> query language without some sort of glue language.
You click on a map, and form send data to DBMS
(DBMS listen port#80 and accept HTTP).
What is impossible ?
1. HTML can't locate the nearest valid city based on where you clicked.
HTML+Javascript could perhaps, but you didn't want people learning
programming languages.
2. There isn't a database that listens on port 80 for HTTP
3. If there was, you'd still need it to translate a HTTP POST/GET into
an internal query (in SQL or TML if there existed an implementation of
TML). For non-trivial cases, that implies a programming language.
4. You'd still need logic to validate/transform input values and do the
same for output values. For non-trivial cases that involves a
programming language.
RH> 5. PHP formats results
TML extract xml to address of requester.
RH> But no-one's going to want raw XML are they? They'll want properly
RH> formatted results
I agree.
Results will formatted by CSS (or XSL).
Even XSL is easier for scientists, than PHP-library.
Why are scientists building a flight-planning website?
--
Richard Huxton
Archonet Ltd
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