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  • User oriented regex library for java

    - by Maxim Veksler
    Hello, I'm looking for a library that could perform "easy" pattern matching, a kind of pattern that can be exposed via GUI to users. It should define a simple matching syntax like * matches any char and alike. In other words, I want to do glob (globbing) like sun's implemented logic http://openjdk.java.net/projects/nio/javadoc/java/nio/file/PathMatcher.html but without relation to the file system. Ideas?

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  • Optimizing a lot of Scanner.findWithinHorizon(pattern, 0) calls

    - by darvids0n
    I'm building a process which extracts data from 6 csv-style files and two poorly laid out .txt reports and builds output CSVs, and I'm fully aware that there's going to be some overhead searching through all that whitespace thousands of times, but I never anticipated converting about about 50,000 records would take 12 hours. Excerpt of my manual matching code (I know it's horrible that I use lists of tokens like that, but it was the best thing I could think of): public static String lookup(List<String> tokensBefore, List<String> tokensAfter) { String result = null; while(_match(tokensBefore)) { // block until all input is read if(id.hasNext()) { result = id.next(); // capture the next token that matches if(_matchImmediate(tokensAfter)) // try to match tokensAfter to this result return result; } else return null; // end of file; no match } return null; // no matches } private static boolean _match(List<String> tokens) { return _match(tokens, true); } private static boolean _match(List<String> tokens, boolean block) { if(tokens != null && !tokens.isEmpty()) { if(id.findWithinHorizon(tokens.get(0), 0) == null) return false; for(int i = 1; i <= tokens.size(); i++) { if (i == tokens.size()) { // matches all tokens return true; } else if(id.hasNext() && !id.next().matches(tokens.get(i))) { break; // break to blocking behaviour } } } else { return true; // empty list always matches } if(block) return _match(tokens); // loop until we find something or nothing else return false; // return after just one attempted match } private static boolean _matchImmediate(List<String> tokens) { if(tokens != null) { for(int i = 0; i <= tokens.size(); i++) { if (i == tokens.size()) { // matches all tokens return true; } else if(!id.hasNext() || !id.next().matches(tokens.get(i))) { return false; // doesn't match, or end of file } } return false; // we have some serious problems if this ever gets called } else { return true; // empty list always matches } } Basically wondering how I would work in an efficient string search (Boyer-Moore or similar). My Scanner id is scanning a java.util.String, figured buffering it to memory would reduce I/O since the search here is being performed thousands of times on a relatively small file. The performance increase compared to scanning a BufferedReader(FileReader(File)) was probably less than 1%, the process still looks to be taking a LONG time. I've also traced execution and the slowness of my overall conversion process is definitely between the first and last like of the lookup method. In fact, so much so that I ran a shortcut process to count the number of occurrences of various identifiers in the .csv-style files (I use 2 lookup methods, this is just one of them) and the process completed indexing approx 4 different identifiers for 50,000 records in less than a minute. Compared to 12 hours, that's instant. Some notes (updated): I don't necessarily need the pattern-matching behaviour, I only get the first field of a line of text so I need to match line breaks or use Scanner.nextLine(). All ID numbers I need start at position 0 of a line and run through til the first block of whitespace, after which is the name of the corresponding object. I would ideally want to return a String, not an int locating the line number or start position of the result, but if it's faster then it will still work just fine. If an int is being returned, however, then I would now have to seek to that line again just to get the ID; storing the ID of every line that is searched sounds like a way around that. Anything to help me out, even if it saves 1ms per search, will help, so all input is appreciated. Thankyou! Usage scenario 1: I have a list of objects in file A, who in the old-style system have an id number which is not in file A. It is, however, POSSIBLY in another csv-style file (file B) or possibly still in a .txt report (file C) which each also contain a bunch of other information which is not useful here, and so file B needs to be searched through for the object's full name (1 token since it would reside within the second column of any given line), and then the first column should be the ID number. If that doesn't work, we then have to split the search token by whitespace into separate tokens before doing a search of file C for those tokens as well. Generalised code: String field; for (/* each record in file A */) { /* construct the rest of this object from file A info */ // now to find the ID, if we can List<String> objectName = new ArrayList<String>(1); objectName.add(Pattern.quote(thisObject.fullName)); field = lookup(objectSearchToken, objectName); // search file B if(field == null) // not found in file B { lookupReset(false); // initialise scanner to check file C objectName.clear(); // not using the full name String[] tokens = thisObject.fullName.split(id.delimiter().pattern()); for(String s : tokens) objectName.add(Pattern.quote(s)); field = lookup(objectSearchToken, objectName); // search file C lookupReset(true); // back to file B } else { /* found it, file B specific processing here */ } if(field != null) // found it in B or C thisObject.ID = field; } The objectName tokens are all uppercase words with possible hyphens or apostrophes in them, separated by spaces. Much like a person's name. As per a comment, I will pre-compile the regex for my objectSearchToken, which is just [\r\n]+. What's ending up happening in file C is, every single line is being checked, even the 95% of lines which don't contain an ID number and object name at the start. Would it be quicker to use ^[\r\n]+.*(objectname) instead of two separate regexes? It may reduce the number of _match executions. The more general case of that would be, concatenate all tokensBefore with all tokensAfter, and put a .* in the middle. It would need to be matching backwards through the file though, otherwise it would match the correct line but with a huge .* block in the middle with lots of lines. The above situation could be resolved if I could get java.util.Scanner to return the token previous to the current one after a call to findWithinHorizon. I have another usage scenario. Will put it up asap.

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  • .htaccess - RewriteRules working, but browser address bar displaying full (unfriendly) URL

    - by axol
    Hey there, Haven't been able to find a solution to this around the net or these forums - apologise if I've missed something! My .htaccess RewriteRules are working well - have search-engine and user -friendly links in my web pages, and unfriendly database URLs running hidden in the background. Except when I added a RewriteRule to add "www." to the front of URLs if the user didn't enter it - to ensure only one appears in search engines. Here's what now happening, and I can't figure out why! My friendly URL structure for content is like this, and the database query string uses the first "importantword": www.example.com/importantword-nonimportantword/ .htaccess snippet: Options +FollowSymLinks Options -Indexes RewriteEngine on RewriteOptions MaxRedirects=10 RewriteBase / RewriteRule ^/$ index.php [L] RewriteRule ^(.*)-(.*)/overview/$ detail.php?categoryID=$1 [L] RewriteCond %{HTTP_HOST} !^www.example.com$ RewriteRule ^(.*)$ http://www.example.com/$1 [L] What's happening since I added the last 2 lines: CASE 1: user types (or clicks) www.example.com/honda-vehicle/overview/ - Works correctly - They are taken to the correct page and the browser URL bar says: www.example.com/honda-vehicles/overview/ CASE 2: user types example.com - Works correctly - They are taken to www.example.com and the browser URL bar says: www.example.com CASE 3: user types (or clicks) example.com/honda-vehicles/overview/ i.e. without the prefix "www" - Does NOT work correctly - They are taken to the right page, but the browser URL bar displays the unfriendly URL: www.example.com/detail.php?categoryID=honda I figure there's some issue with the order of the RewriteRules, but it's doing my head in trying to logically step through it and figure it out! Any assistance at all or pointers would be most appreciated!

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  • Isapi Rewrite : Remove filename from URL

    - by namtax
    Hi there Im am trying to use the isapi rewrite tool on my web domain to write some basic rules, but am getting a bit confused. My base url is http://forevr-dev.co.uk/musicexplained/index.cfm and every page on the site follows from this base url. For example http://forevr-dev.co.uk/musicexplained/index.cfm/artist/blondie would be the artist page for blondie.. What I am looking for, is a rewrite rule, that would remove the index.cfm from the url, instead leaving http://forevr-dev.co.uk/musicexplained/artist/blondie. I have put the httpd.ini file in my musicexplained folder, under the root of my forevr-dev.co.uk domain, and I am using the following code below, which I used from the coldbox coldfusion framework application examples. RewriteEngine On RepeatLimit 0 RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule ^(.*)$ index.cfm/%{REQUEST_URI} [QSA,L] However, when I now go to the new pretty url, I am recieving an error message saying that the page cannot be found, alongside a 404 message. Any ideas? Thanks

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  • how to specify query string in url with apache bench

    - by kshama
    hi, My rails application is running on thin server which i want to benchmark using apachebench the command am using is ab -n 1 -c 1 http://localhost:3001/welcome/search?query="doctor"&rad=5 But thin server is not taking this url.Its giving !! Invalid Request Can any one help me how to give the url such that thin accepts the url with query string

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  • Is there a way to encode a URL in velocity template

    - by fermatthrm2
    Hi, Excuse my ignorance but I am new to Velocity and trying to fix someone else's problem. I need to encode a URL inside the velocity template. I create a url and as part of the query string I pass in a page name a user created. This page can contain special characters like ëðû. The url would look like http://foo.com/page1/jz?page=SpecialChars_ëðû

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  • Gmail like URL scheme

    - by Varun
    I am working on a ticket system, having the following requirement: The home page is divided into two sections: Sec-1. Some filter options are shown here.(like closed-tickets, open-tickets, all-tickets, tickets-assigned-to-me etc.). You can select one or more of these filters. sec-2. List of tickets satisfying above filters will be displayed here. Now this is what I want: As I change the filters -- the change should be reflected in the URL, so that one is able to bookmark it. -- an ajax request will go and list of tickets satisfying the selected filters will be updated in sec-2. I want the same code to be used to load the tickets in both ways- (a) by selecting that set of filters and (b) by using the bookmark to reload the page. I have little idea on how to do it: The URL will contain the selected filters.(appended after #) changing filters on the page will modify the hash part of URL and call a function (say ajaxHandler()) to parse the URL to get the filters and then make an ajax request to get the list of tickets to be displayed in section2. and I will call the same function ajaxHandler() in window.onload. I feel this is what Yahoo maps does. What's the best way to implement such URL scheme? Am I headed in the right direction?

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  • Apache and backslashes in mod_rewrite

    - by NuCalTone
    I want to process all incoming requests through a single script (index.php in web-root). So, the following is what currently happens: http://localhost/foo/bar/baz Is routed by Apache (through .htaccess) to: http://localhost/index.php?url=foo/bar/baz This works well, however, in Firefox I am able to do this: http://localhost/foo\ - notice the backslash. And Apache, instead of doing: /index.php?url=foo\ Emits a generic error page saying: Object not found! The requested URL was not found on this server. If you entered the URL manually please check your spelling and try again. If you think this is a server error, please contact the webmaster. Error 404 localhost Apache/2.2.14 (Win32) DAV/2 mod_ssl/2.2.14 OpenSSL/0.9.8l mod_autoindex_color PHP/5.3.1 mod_apreq2-20090110/2.7.1 mod_perl/2.0.4 Perl/v5.10.1 Directly going to: http://localhost/index.php?url=foo\ works without issues, however. All the sites that I've seen on the internet seem to be able to handle backslashes gracefully (e.g., http://stackoverflow.com/tags/php\\\\\). I consider this behavior a bug and I want to force Apache to forward backslashes correctly. Here's my .htaccess file in its entirety: RewriteEngine On RewriteCond %{REQUEST_FILENAME} !-f RewriteRule ^(.*)$ index.php?url=$1 [L] How can I make this work properly?

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  • How to disable ASP.NET MVC url routing

    - by Luke101
    Just would like to know how do I disable URL Rewriting in asp.net MVC. I don't need url rewriting in my application and would like to turn it off. Reason: I am aware that url rewriting uses reflection and would like to save a few cpu cycles by avoiding it. Thanks

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  • pass value through url

    - by shishir.bobby
    hi all, i hv a question. my url is some thing like this http://www.google.com?to=shishir&from=friend and i hv 2 textfeild from where i m getting value of to and from. i need to set those values of 2 textfeiilds into the URL to="values from textfeild" from="value from textfeild" to create a somewhat called a dynamic URL. how can i do it quick reply is always appreciated regards shishir

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  • URL latex linebreak problem

    - by Laurence Dawson
    Hi everyone, Having a small issue with long url's in latex. When a url is over a line wrong and goes onto a second like, the hyperlink only uses the first line. Is there a way to get around this and yet still have the URL on multiple lines? Cheers, Laurence

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  • Issue with IHttpHandler and relative URLs

    - by vtortola
    Hi, I've developed a IHttpHandler class and I've configured it as verb="*" path="*", so I'm handling all the request with it in an attempt of create my own REST implementation for a test web site that generates the html dynamically. So, when a request for a .css file arrives, I've to do something like context.Response.WriteFile(Server.MapPath(url)) ... same for pictures and so on, I have to response everything myself. My main issue, is when I put relative URLs in the anchors; for example, I have main page with a link like this <a href="page1">Go to Page 1</a> , and in Page 1 I have another link <a href="page2">Go to Page 2</a>. Page 1 and 2 are supposed to be at the same level (http://host/page1 and http://host/page2, but when I click in Go to Page 2, I got this url in the handler: ~/page1/~/page2 ... what is a pain, because I have to do an url = url.SubString(url.LastIndexOf('~')) for clean it, although I feel that there is nothing wrong and this behavior is totally normal. Right now, I can cope with it, but I think that in the future this is gonna bring me some headache. I've tried to set all the links with absolute URLs using the information of context.Request.Url, but it's also a pain :D, so I'd like to know if there is a nicer way to do these kind of things. Don't hesitate in giving me pretty obvious responses because I'm pretty new in web development and probably I'm skipping something basic about URLs, Http and so on. Thanks in advance and kind regards.

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  • Url encode and routing?

    - by Curtis White
    I'm using custom routing in a web forms context. I have some titles (part of my custom route) that have say a question mark character. When I URL encode this text ("Question?") and then pass into my route, I get an HTTP ERROR CODE 400. Apparently, the URL encoded text is somehow confusing the routing manager. Can someone provide context and explanation for this? Beyond that, I'm thinking I don't need to URL encode these route data but merely strip out the problem characters. Are there any security risks to not using URL decode/encode? And what are the problem characters? A list would be useful. Thanks!

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  • magento - multilingual site + Add store codes to url - want to show flag icons

    - by Mustapha George
    I want to have a multi-language magento site use a flag image instead of a language selector box for user to select language of page. There is a nice article on this at http://www.atwix.com/magento/replace-language-selector-flag-icons/ Only issue is that we use "Add store codes to url" option. I hacked this code, but it can use some refinement and make it more Magento looking. <?php if(count($this->getStores())>1): ?> <div class="form-language"> <div class="langs-wrapper"> <?php foreach ($this->getStores() as $_lang): ?> <?php if ($_lang->getCode() != 'default'): ?> <? $base_url = Mage::getBaseUrl(); // remove language in base url $base_url = str_replace('/en/' , "" , $base_url); $base_url = str_replace('/fr/' , "" , $base_url); $current_url = $this->helper('core/url')->getCurrentUrl(); // take out base url and language code $rest_of_url = str_replace($base_url , "" , $current_url); $rest_of_url = str_replace('/en/' , "" , $rest_of_url); $rest_of_url = str_replace('/fr/' , "" , $rest_of_url); // assmble new url $new_url = $base_url . '/' . $_lang->getCode() . '/' . $rest_of_url; ?> <a class="lang-flag" href="<?php echo $new_url ;?>"><img src="<?php echo $this->getSkinUrl('images/flags/' . $_lang->getCode() . '.png');?>" alt=""></a> <?php endif;?> <?php endforeach;?> </div> </div> <?php endif;?>

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  • Open Graph & Rails not retrieving object's URL

    - by Fred
    I'm using Rails to try and add an action for an object both defined for my app on the open graph. I am using an :after_filter in my controller to call the following after session#create: @graph.put_connections('me', 'workkout:complete', :session => url_for([@plan, @session])) I am getting the following back from Facebook: {"error":{"type":"Exception","message":"Could not retrieve data from URL.","code":1660002}} I have checked that the correct URL is passed to put_connections, and when I visit this URL using Facebook's Lint tool, everything is correct. I can't understand why this isn't working, my only thought is that Facebook is hitting the URL moments before rails has generated the object? - not sure if that's even possible though. Can anyone shed any light on this?

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  • MVC noob - changing part of URL in a link

    - by vidalsasoon
    Hi, I have a site that supports localization. I would like to be able to switch between english and french. Let say the user is currently at URL: http://www.mysite.com/en/Home I would like to redirect to: http://www.mysite.com/fr/Home If the user click on a "French" link how to change the URL part to "fr" yet not change the "Home" part of the URL (basically I want preserve the current location of the user) Hope my question makes sense! I'm probably missing something very basic?

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  • Zend remove anchor text in url redirect

    - by user351785
    I have a form that is using an anchor name as it's action so that when the form is submitted it is it goes straight back to the form (for example 'www.domain.com/page#contact-form). The idea is if there are any errors then it'll go straight to the form (that's near the bottom of the page) so you can see the errors and continue filling in the form. If the form is valid, I want it to redirect to another page (for example www.domain.com/another-page). The problem is that the redirect url still has the anchor text in the url (in the above example it is www.domain.com/another-page#contact-form). I am using $this->_helper->redirector->goToRouteAndExit(array(), 'another-page', true); to goto the another-page route. I have tried setting the url specifically but that doesn't fix it either. How do I redirect to another page and remove that anchor text from the url?

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  • google url shortener api and jquery not working

    - by rahim
    i cant seem to get google's new url shortener api to work with jquery's post method: $(document).ready(function() { $.post("https://www.googleapis.com/urlshortener/v1/url", { longUrl: "http://www.google.com/"}, function(data){ console.log("data" + data); }); $('body').ajaxError(function(e, xhr, settings, exception) { $(this).text('fail'+e); console.log(exception); }); }); all of this gives me an empty (data) response AND an empty (exception) response. any ideas? ive also tried this with no success: $.ajax({ type: 'POST', url: "https://www.googleapis.com/urlshortener/v1/url", data: { longUrl: "http://www.google.com/"}, success: success, dataType: "jsonp" });

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  • Wordpress is ignoring Unicode Chars in URL

    - by Ankur Gupta
    Hi, I am using wordpress with this type of permalink: /%year%/%monthnum%/%postname%/ if I use this type of url: example.com/2010/03/????? it treats this url like this example.com/2010/03/ (By ignoring unicode chars) and displays March 2010 archive list. if I use english url: example.com/2010/03/technology then it works perfectly. This problem occurs even on tags page: for example example.com/tag/??????? is treated like example.com/tag/ and displays 404 page. Why wordpress is ignoring unicode chars? If I use default querystring structure then it works perfectly even with unicode characters. Server Info: IIS7 Win2008 Server (Url rewriting enabled) Wordpress 2.9.2

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  • Map Custom URL protocol to HTTP (using NSURLProtocol?)

    - by Francisco Ryan Tolmasky I
    I have an application using a WebKit WebView and I'd like to map URL's that are loaded in this WebView with a custom URL protocol to a different HTTP URL. For example, say I am loading: custom://path/to/resource I would like to internally actually load: http://something-else.com/path/to/resource In other words, the custom protocol serves almost as a shorthand. I can't however use -webView:resource:willSendRequest:redirectResponse:fromDataSource:, because I want WebKit to actually believe this is the URL in question, not to simply redirect from one to the other. So far I've been attempting to use a custom NSURLProtocol subclass. However, this is proving trickier than I first thought because, at least to my understanding, I will have to do the actual loading myself in the NSURLProtocol subclass' startLoading method. I'd like a way to just hand off the work to the existing HTTP protocol loader, but I can't find an easy way to do this. Does anyone have a recommendation for this, or perhaps an alternative way to solve this issue? Thanks!

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  • PHP URL Security Question

    - by TaG
    I want to have users store the url in my database I'm using php mysql and htmlpurifier I was wondering if the following code was good way to filter out bad data? Here is the Partial PHP code. $url = mysqli_real_escape_string($mysqli, $purifier->purify(htmlspecialchars(strip_tags($_POST['url'])));

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