Thanks, Bob. Very informative to this total JS noob. .Jerry On Sep 1, 2015, at 6:51 PM, Bob Warren <bobwar...@howsoft.com> wrote: > > Please allow me to elucidate a little on the question of file I-O in the > local file system using Javascript, in the hope that it will be useful to > some of you, or that it might in some way influence what is/is not > implemented in LC8: > > 1. A Javascript (or JQuery script) is able to upload data from a file > directly from the local file system, without operator intervention, AS LONG > AS IT IS AN XML file. > > 2. There exists an "xmlWriter.js", but I haven't managed to get it to work > yet! > > 3. If operator intervention is allowed, then dialogues (like LC "answer file" > dialogues) for uploading/downloading files from anywhere from/to the local > file system can be achieved in 2 ways that I know of: > > (a) Using "Uploadify" and "Downloadify". (Require Flash) A bit of a pain in > the elbow to embed in your script though. > (b) Using HTML5. (Flash not required). Easier to embed, but not quite so > direct in their usage of LC-style dialogues. > > -------------------- > > If anyone wants a demo of the XML upload, just drop me a line and I will send > it to you. > If anyone knows how to get xmlWriter to work, I'd be grateful for a demo > script if you have one. > For examples of Uploadify and Downloadify, see the 4 browser apps at: > > http://www.howsoft.com/browserapps/ > > For an example of local file I-O using HTML5, see my unpublished app at: > > http://www.howsoft.com/browserapps/quickinfo/ > > For information on embedding, just look at the script in the "developers" > menu of your browser. (Sorry about the "spaghetti coding: my GGgrandmother > was an Italian!) > > I would like to emphasize that all the above concerns file I-O on the local > file system, NOT on a server, regardless of whether the script itself is on > the Internet or on the local machine. > > For quite a long time, I have been trying to do everything in Javascript that > I am able to do in LC on the desktop. > It ain't easy! > > Regards, > > Bob Warren
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