Thanks for the reply Teo. Judah
P.S. I gather English is not your mother tongue. I've noticed that you sign off your forums posts with 'Thanks, Teo'. Allow me to give you a word of advice. When you sign off a forum post or email in English you don't thank the person it is meant for. You can say many things. You could say: 'Good luck'/ 'Best of luck', 'Hope this helps, let me know if you need further assistance' etc. You obviously also have more formally signatures but they aren't appropriate for a forum post which are by their very nature informal At any rate, when you sign off an post I recommend altering the signature. On Aug 28, 4:07 pm, Teo <[EMAIL PROTECTED]> wrote: > Maybe there are certain characters like escape > characters<http://www.html-reference.com/Escape.htm>present in the > actual data. You would have to use the encoded form if such a > character is there, maybe this is your problem.. > > About what you want to do: if you're already directly parsing the HTML it > may be a bit overkill to manually create the XML string, if i understand > correctly. However, if, as you said, you need some special data structures > and this whole fetching and parsing process isn't called very often (thus > consuming a lot of CPU), i think you could invest some code in the HTML -> > XML transformation (but be careful with those excape characters if you do it > :). > > Thanks, > Teo > > > > On Thu, Aug 28, 2008 at 1:39 PM, Judah <[EMAIL PROTECTED]> wrote: > > > I've pretty much done what you suggested Teo. > > I'm iterating through the html string extracting the bits I want. > > > There is something I still wondered about though. > > I was hoping to be able to put the bits of html I extracted into an > > xml file because its easier to pick out data and saves parsing every > > level in the tree recursively. I concatenated the strings of html that > > i obtained into another string, added a couple of tags before and > > after to make it well formed and attempted loading it into a string > > using and XMLHttpRequest (using an example in David flanagan's book on > > JavaScript (O'Rielly publishing)). > > Any ideas, why it wouldn't be working? > > Perhaps the html I've extracted and put into an xml string is not > > wellformed? > > And do you think such an approach is advisable or would you recommend > > recursively parsing the entire html document myself. > > > Judah > > > On Aug 21, 9:34 am, Teo <[EMAIL PROTECTED]> wrote: > > > When i needed to do this, i made my own parser. Also depends on what you > > > want to do, but it shouldn't be hard. Basically you make a new String > > object > > > from the response text, like this: > > > > *var s=new String(responseText);* > > > > Then with a good old *for* you go through the string. > > > Here's a list of String properties and methods in Javascript: > >http://www.w3schools.com/jS/js_obj_string.asp > > > > Thanks, > > > Teo > > > > On Thu, Aug 21, 2008 at 9:16 AM, Judah <[EMAIL PROTECTED]> wrote: > > > > > Thanks Teo > > > > It seems you're hunch is right. The various URLs that I've tried > > > > loading into xml (via the responseText property of the response) has > > > > malformed xml. > > > > The article you sent me helped me determine that. > > > > > I'm thinking now that my only option if I wish to grab a web page is > > > > to use regular expressions. Do you know of another way to grab data > > > > (html say) from webpages using the desktop? > > > > > Judah > > > > > On 19 אוגוסט, 09:44, Teo <[EMAIL PROTECTED]> wrote: > > > > > Hi, > > > > > > here is an article about XML parsing; maybe it helps: > > > >http://code.google.com/apis/desktop/articles/2.html > > > > > > Are you sure the XML is not malformed? > > > > > > Thanks, > > > > > Teo > > > > > > On Mon, Aug 18, 2008 at 9:34 PM, Judah <[EMAIL PROTECTED]> wrote: > > > > > > > Hi there, > > > > > > > I'm trying to read an html page from the internet and extract data > > > > > > from it for my gadget. > > > > > > > I've opted to try parsing the page into xml but to no avail . > > > > > > > each time i do so I find the domDocument I receive has no child > > nodes. > > > > > > From the debugger I can see that the html string is there in its > > > > > > entirety. > > > > > > > Has anyone done this before. > > > > > > There was a post about parsing files to xml here > > >http://groups.google.com/group/Google-Desktop-Developer/browse_thread. > > > > .. > > > > > > > and although it should work for pages from the internet in the same > > > > > > way it doesn't seem to be. > > > > > > > If anyone can suggest how I might over come this or where I am > > going > > > > > > wrong I would be most grateful. > > > > > > > Simon > > > > > > > The code i've written (if it helps) is: > > > > > > > var URL = "http://www.tinyurl.com";; > > > > > > > var logoRequest_ = null; > > > > > > > function internetConnectionOpen() { > > > > > > // Start to download the page > > > > > > logoRequest_ = new XMLHttpRequest(); > > > > > > try { > > > > > > logoRequest_.open("GET", URL, true); > > > > > > } catch (e) { > > > > > > logoRequest_ = null; > > > > > > return; > > > > > > } > > > > > > > // Set the callback for when the downloading is completed (or > > > > > > failed) > > > > > > logoRequest_.onreadystatechange = onLogoData; > > > > > > > // Start the download > > > > > > try { > > > > > > logoRequest_.send(); > > > > > > } catch (e) { > > > > > > // Catch errors sending the request > > > > > > debug.info(e); > > > > > > logoRequest_ = null; > > > > > > return; > > > > > > } > > > > > > } > > > > > > > function onLogoData() { > > > > > > // Verify that the download completed > > > > > > if (logoRequest_.readyState != 4) > > > > > > return; > > > > > > > // Verify that the download was successful > > > > > > if (logoRequest_.status != 200) { > > > > > > logoRequest_ = null; > > > > > > return; > > > > > > } > > > > > > > var xmlDoc = new DOMDocument(); > > > > > > xmlDoc.loadXML(logoRequest_.responseText); > > > > > > webPageConsumerCallbackFunction(xmlDoc); > > > > > > (logoRequest_.responseText); > > > > > > > // Destroy the XMLHttpRequest object since it isn't being used > > > > > > anymore > > > > > > logoRequest_ = null; > > > > > > } > > > > > > > function webPageConsumerCallbackFunction(DOM) > > > > > > { > > > > > > debug.info("reached webPageConsumerCallbackFunction"); > > > > > > if (DOM == null) > > > > > > { > > > > > > alert("unable to connect to the website"); > > > > > > return; > > > > > > } > > > > > > else if (DOM.childNodes.length == 0) > > > > > > { > > > > > > alert("DOM is empty. unable to extract data"); > > > > > > return; > > > > > > } > > > > > > > //otherwise > > > > > > //digest the web page .... > > > > > > > } > > > > > > -- > > > > > Teo (a.k.a. Teodor Filimon, Teominator) > > > > > Site -www.teodorfilimon.com|Blog -www.teodorfilimon.blogspot.com > > > > > GMT +2 (or PDT +10)-הסתר טקסט מצוטט- > > > > > > -הראה טקסט מצוטט- > > > > -- > > > Teo (a.k.a. Teodor Filimon, Teominator) > > > Site -www.teodorfilimon.com|Blog -www.teodorfilimon.blogspot.com > > > GMT +2 (or PDT +10) > > -- > Teo (a.k.a. Teodor Filimon, Teominator) > Site -www.teodorfilimon.com| Blog -www.teodorfilimon.blogspot.com > GMT +2 (or PDT +10) --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google Desktop Developer Group" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Desktop-Developer?hl=en -~----------~----~----~----~------~----~------~--~---
