Tony Cowderoy wrote:
I know of two ways to bring .csv data into JavaScript:
1) the really crude way is to wrap it in a little bit of JavaScript
code to make it a string, e.g.
var csvData = "-----put your data here-----";
and then load it as a script in your web page. You've then got your
data as a global (i.e. window level) variable. That assumes you can
either modify the embedded server or that you have some way to filter
the returned data (e.g. pipe it through sed);
I think I may be able to add a custom header to the log file but not a
custom footer, so I'd have a problem adding the trailing "; But nice
idea - I like the way you think!
2) the modern, fashionable, way is to use the XMLHttpRequest object in
your JavaScript code to fetch the data from your server, like a fancy
"AJAX" web application. Despite the object name, you don't have to
treat the returned data as XML, you can just use it as a string. That
means you don't need to do anything to the server. XMLHttpRequest
will slurp all of the data in one go but, unless you have a huge
amount of it, that shouldn't be a problem.
AJAX I have been looking at (there's an article in this month's Linux
Format if anyone is interested) but hadn't appreciated that I could get
something other than XML through it (as I say I'm stuck with CSV).
I googled before posting, and I'm sure I used pretty much the same
query, but this time I found:
http://www.kawa.net/works/js/jkl/parsexml-e.html
.. which seems to handle CSV data (I haven't tried it yet but it looks
like a good start).
Can you modify the embedded server at all? JSON is very easy to
output and can then be pulled straight into your page as a script, so
that the JavaScript interpreter does the parsing for you.
Unfortunately not. The server gathers data and stores it as CSV. That's it.
Thanks for your help - I think I can see a light at the end of this
particular tunnel!
--
Mark Rogers
More Solutions Ltd :: 0845 45 89 555
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