On 09.02.2015 21:58, Kasemir, Kay wrote:
and then you need to be prepared to parse a response that looks like
HTTP/1.1 200 OK
Content-Type: text/html
Server: Whatever
Cache-Control: no-cache
Pragma: no-cache
Content-Length: 97
.. the actual data..
Try regular expressions to fund the actual data in all the http noise.
See my example in the StreamDevice documentation:
http://epics.web.psi.ch/software/streamdevice/doc/tipsandtricks.html#web
get_title {
extrainput = ignore;
replyTimeout = 1000;
out "GET http://\$1\n\n";
in "%+.1/(?im)<title>(.*)<\/title>/";
}
Here \$1 was the web address (e.g. "10.95.101.75/data" in your case).
out "GET http:..."
This is the short worm of what curl does. (You have sent the string
"curl ..." instead of calling curl.)
in "%+.1/(?im)<title>(.*)<\/title>/";
This means: find the tag <title> (ignoring case) and give me the string
beween <title> and </title>.
In case you data is not a string but for example a number you want to
parse into a ai record, use a regular expressions to find the text right
before the data and then parse with %f or another numeric format:
in "%*/Interesting value:/%f more text";
This first searches for the text "Interesting value:" in the web page
and then parses the value with %f. After the value, it expects the
string " more text".
Dirk
- Replies:
- Re: using EPICS code with HTTP port Dirk Zimoch
- Re: using EPICS code with HTTP port Bill Lavender
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