On Apr 24, 2007, at 2:55 PM, Peter T. Evensen wrote:
Could you do something like this?
set the itemdelimiter to "/"
repeat with i = 3 to the number of items in tURL
put URLEncode(item i of tURL) into item i of tURL
end repeat
Yes, I think that's basically what Martin was getting at. It's just
that URLEncode changes space to '+', so you'd have to handle that as
a special case.
Devin
Martin Baxter wrote:
Devin Asay wrote:
I'm working on a stack that launches stacks from the web with 'go
stack URL'.
I know there are certain characters that are illegal or unsafe in
URL strings. (See http://tools.ietf.org/html/rfc1738) These
include space, quote and a number of others. Most web browsers
automatically escape these characters for you, so, e.g., a space
is converted to '%20' before the browser sends the request to the
server.
I'm about to start writing a function that checks a potential
stack URL for illegal and unsafe characters and converts them to
escape sequences, but I don't want to reinvent the wheel if such
a thing already exists.
Am I right that there is no equivalent functionality built into
Rev? I know about URLEncode(), of course, but that serves a
different purpose--formatting strings for POSTing, rather than
formatting strings for retrieving files from a server (a GET
request?) Am I understanding this correctly?
I think you are right Devin, unfortunately. Anyway, you can't give
the whole url to urlencode as it will also encode the slashes and
colons etc. etc.
Looking at my php manual, I find php has 2 functions:
urlencode()
rawurlencode()
and the difference is described as the treatment of space: + in
urlencode, %20 in rawurlencode
This is a surmise, but I think that RR urlencode is the same as
php's identically named function. If so, a shortcut might be to
replace the spaces yourself before applying urlencode() which
should deal with any remaining problem characters
something like (untested)
put "http://www.whatever.com/"; into tdomainpart
put "exciting content/big file.html" into tpath
replace space with "%20" in tpath
set itemdelimiter to "/"
put empty into t_assemble
repeat with i = 1 to the number of items in tpath
put urlencode(item i of tpath) into item i of tencodedpath
end repeat
put tdomainpart & tencodedpart into tencodedurl
A related issue is, are there characters that are disallowed as
filenames for rev stackfiles? I can't find any such list
anywhere. I suppose this would be determined by the host OS?
That's what I would expect. I would avoid naming a rev stack
beginning with a tilde though, because of the temp file made when
saving.
Devin Asay
Humanities Technology and Research Support Center
Brigham Young University
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