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  • CSSOMParser in gwt client side

    - by Zoja
    What i would like to do is to read an css file from a GET request on the client side, and then i would like to parse it to check all the classes. The problem is that I need to implement CSSOMParser for that, and here are the imports import org.w3c.dom.css.CSSRule; import org.w3c.dom.css.CSSRuleList; import org.w3c.dom.css.CSSStyleRule; import org.w3c.dom.css.CSSStyleSheet; import com.steadystate.css.parser.CSSOMParser; the problem is that none of those classes ale probably javascript compilant, so they don't want to compile if they're on the client side. Is there a way to get it done ?

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  • How do Relational Databases Work Under the Hood?

    - by Pierreten
    I've always been interested in how you can throw some SQL at at database, and it nearly instantaneously returns your results in an orderly manner without thinking about it as anything other than a black box. What is really going on? I'm pretty sure it has something to do with how values are laid out regularly in memory, similar to an array; but aside from that, I don't know much else. How is SQL parsed in a manner to facilitate all of this?

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  • how to read an address in multiple formats like google maps

    - by ratan
    notice that on google maps you can input the address any way you like. as long as it is a valid address...google maps will read it. In some ruby book I had seen code snippet for something like this, but with phone numbers. Any ideas how this could be done for addresses? in language of your choice. EDIT: i dont care about a "valid" address. I just want to parse an address. so that 123 fake street, WA, 34223 would be an address and so will 123 fake street WA 34223

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  • Using Python's ConfigParser to read a file without section name

    - by Arrieta
    Hello: I am using ConfigParser to read the runtime configuration of a script. I would like to have the flexibility of not providing a section name (there are scripts which are simple enough; they don't need a 'section'). ConfigParser will throw the NoSectionError exception, and will not accept the file. How can I make ConfigParser simply retrieve the (key, value) tuples of a config file without section names? For instance: key1=val1 key2:val2 I would rather not write to the config file.

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  • Unable to Parse Date using NSDateFormatter

    - by Ansari
    Hi, I am fetching a RSS, in which i receive the following Date stamp: 2010-05-10T06:11:14.000Z Now i am using NSDateFormatter to parse this datetime stamp. [parseFormatter setDateFormat:@"yyyy-MM-dTH:m:s.z"]; But its not working fine if just remove the time stamp part it works for the date [parseFormatter setDateFormat:@"yyyy-MM-d"]; But if i add the rest of the stuff it returns nil. Any idea ? Thanks in Advance....

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  • Extracting a table row with a particular attribute,using HTMLAGILITY pack

    - by Soham
    Consider this piece of code: <tr> <td valign=top class="tim_new"><a href="/stocks/company_info/pricechart.php?sc_did=MI42" class="tim_new">3M India</a></td> <td class="tim_new" valign=top><a href='/stocks/marketstats/indcomp.php?optex=NSE&indcode=Diversified' class=tim>Diversified</a></td> I want to write a piece of code using HTMLAgility pack which would extract the link in the first line.

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  • How would I use HTMLAgilityPack to extract the value I want

    - by Nai
    For the given HTML I want the value of id <div class="name" id="john-5745844"> <div class="name" id="james-6940673"> UPDATE This is what I have at the moment HtmlDocument htmlDoc = new HtmlDocument(); htmlDoc.Load(new StringReader(pageResponse)); HtmlNode root = htmlDoc.DocumentNode; List<string> anchorTags = new List<string>(); foreach (HtmlNode div in root.SelectNodes("//div[@class='name' and @id]")) { HtmlAttribute att = div.Attributes["id"]; Console.WriteLine(att.Value); } The error I am getting is at the foreach line stating: Object reference not set to an instance of an object.

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  • Recognize Dates In A String

    - by Tim Scott
    I want a class something like this: public interface IDateRecognizer { DateTime[] Recognize(string s); } The dates might exist anywhere in the string and might be any format. For now, I could limit to U.S. culture formats. The dates would not be delimited in any way. They might have arbitrary amounts of whitespace between parts of the date. The ideas I have are: ANTLR Regex Hand rolled I have never used ANTLR, so I would be learning from scratch. I wonder if there are libraries or code samples out there that do something similar that could jump start me. Is ANTLR too heavy for such a narrow use? I have used Regex a lot before, but I hate it for all the reasons that most people hate it. I could certainly hand roll it but I'd rather not re-solve a solved problem. Suggestions? UPDATE: Here is an example. Given this input: This is a date 11/3/63. Here is another one: November 03, 1963; and another one Nov 03, 63 and some more (11/03/1963). The dates could be in any U.S. format. They might have dashes like 11-2-1963 or weird extra whitespace inside like this: Nov   3,   1963, and even maybe the comma is missing like [Nov 3 63] but that's an edge case. The output should be an array of seven DateTimes. Each date would be the same: 11/03/1963 00:00:00.

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  • Perl - Read XML

    - by chinna_82
    XML <?xml version='1.0'?> <employee> <name>Smith</name> <age>43</age> <sex>M</sex> <department role='manager'>Operations</department> </employee> Perl use XML::Simple; use Data::Dumper; $xml = new XML::Simple; foreach my $data1 ($data = $xml->XMLin("test.xml")) { print Dumper($data1); } Above code managed to all the xml value like this. Output $VAR1 = { 'department' => { 'content' => 'Operations', 'role' => 'manager' }, 'name' => 'John Doe', 'sex' => 'M', 'age' => '43' }; How do I do, if I only want to get the role value. For this example I need to get Role = manager. Any advice or reference link is highly appreciated.

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  • A database of questions with unambiguous numeric answers.

    - by dreeves
    I (and co-hackers) are building a sort of trivia game inspired by this blog post: http://messymatters.com/calibration. The idea is to give confidence intervals and learn how to be calibrated (when you're "90% sure" you should be right 90% of the time). We're thus looking for, ideally, thousands of questions with unambiguous numerical answers. Also, they shouldn't be too boring. There are a lot of random statistics out there -- eg, enclosed water area in different countries -- that would make the game mind-numbing. Things like release dates of classic movies are more interesting (to most people). Other interesting ones we've found include Olympic records, median incomes for different professions, dates of famous inventions, and celebrity ages. Scraping things like above, by the way, was my reason for asking this question: http://stackoverflow.com/questions/2611418/scrape-html-tables So, if you know of other sources of interesting numerical facts (in a parsable form) I'm eager for pointers to them. Thanks!

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  • How to use Wordpress' http.php in external projects?

    - by NJTechGuy
    I am trying to parse data from a pipe-delimited text file hosted on another server which in turn will be inserted in a database. My host (1and1) disabled allow_url_fopen in php.ini I guess. Error message : Warning: fopen() [function.fopen]: URL file-access is disabled in the server configuration in Code : <? // make sure curl is installed if (function_exists('curl_init')) { // initialize a new curl resource $ch = curl_init(); // set the url to fetch curl_setopt($ch, CURLOPT_URL, 'http://abc.com/data/output.txt'); // don't give me the headers just the content curl_setopt($ch, CURLOPT_HEADER, 0); // return the value instead of printing the response to browser curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); // use a user agent to mimic a browser curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.5) Gecko/20041107 Firefox/1.0'); $content = curl_exec($ch); // remember to always close the session and free all resources curl_close($ch); } else { // curl library is not installed so we better use something else } //$contents = fread ($fd,filesize ($filename)); //fclose ($fd); $delimiter = "|"; $splitcontents = explode($delimiter, $contents); $counter = ""; ?> <font color="blue" face="arial" size="4">Complete File Contents</font> <hr> <? echo $contents; ?> <br><br> <font color="blue" face="arial" size="4">Split File Contents</font> <hr> <? foreach ( $splitcontents as $color ) { $counter = $counter+1; echo "<b>Split $counter: </b> $colorn<br>"; } ?> Wordpress has this cool http.php file. Is there a better way of doing it? If not, how do I use http.php for this task? Thank you guys..

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  • getElementsByClassName not working on parsed html data in greasemonkey

    - by Sid
    Hi my code is as such var xhReq = new XMLHttpRequest(); xhReq.open("GET", linksRaw, false); xhReq.send(null); var serverResponse = xhReq.responseText; var tempDiv = document.createElement('div'); tempDiv.innerHTML = serverResponse.replace(/<script(.|\s)*?\/script>/g, ''); var plzWork = tempDiv.getElementsByClassName('organizationID').innerHTML; console.log(plzWork); The value of 'plzWork' :-) which is logged to the firebug console is always 'undefined' while the link code is <a class="organisationID" href="orglists.htm">Partner Organisations</a> I'm writing this script in the latest versions of Greasemonkey and FF 3.6 Thanks

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  • How can I parse a C header file with Perl?

    - by Alphaneo
    Hi, I have a header file in which there is a large struct. I need to read this structure using some program and make some operations on each member of the structure and write them back. For example I have some structure like const BYTE Some_Idx[] = { 4,7,10,15,17,19,24,29, 31,32,35,45,49,51,52,54, 55,58,60,64,65,66,67,69, 70,72,76,77,81,82,83,85, 88,93,94,95,97,99,102,103, 105,106,113,115,122,124,125,126, 129,131,137,139,140,149,151,152, 153,155,158,159,160,163,165,169, 174,175,181,182,183,189,190,193, 197,201,204,206,208,210,211,212, 213,214,215,217,218,219,220,223, 225,228,230,234,236,237,240,241, 242,247,249}; Now, I need to read this and apply some operation on each of the member variable and create a new structure with different order, something like: const BYTE Some_Idx_Mod_mul_2[] = { 8,14,20, ... ... 484,494,498}; Is there any Perl library already available for this? If not Perl, something else like Python is also OK. Can somebody please help!!!

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  • `strip`ing the results of a split in python

    - by Igor
    i'm trying to do something pretty simple: line = "name : bob" k, v = line.lower().split(':') k = k.strip() v = v.strip() is there a way to combine this into one line somehow? i found myself writing this over and over again when making parsers, and sometimes this involves way more than just two variables. i know i can use regexp, but this is simple enough to not really have to require it...

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  • Right recursive grammar or left recursive?

    - by user2485710
    I have little to no knowledge of what I'm about to ask, so I would like a suggestion based on the level of skills required to implemented a parser for the given grammar ( since I'm a beginner in this kind of formal approach to parsers and languages ). Just by going back of a couple of years, this situation reminds me a little of Pascal grammar vs C/C++ grammar, this left vs right stuff. But I'm not going to do any of that, my purpose is to implement a simple parser for a markup language for documents like Markdown. So considering that I'm starting with a markup language in mind, I want to keep things simple, which is the easiest one to handle between this 2 options and why . Another kind of grammar could be an easier option for me ? If yes which one do you suggest ?

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  • Lexing partial SQL in C#

    - by Chris T
    I'd need to parse partial SQL queries (it's for a SQL injection auditing tool). For example '1' AND 1=1-- Should break down into tokens like [0] => [SQL_STRING, '1'] [1] => [SQL_AND] [2] => [SQL_INT, 1] [3] => [SQL_AND] [4] => [SQL_INT, 1] [5] => [SQL_COMMENT] [6] => [SQL_QUERY_END] Are their any at least lexers for SQL that I base mine off of or any good tools like bison for C# (though I'd rather not write my own grammar as I need to support most if not all the grammar of MySQL 5)

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  • Sanitize Content: removing markup from Amazon's content

    - by StackOverflowNewbie
    I'm using Amazon Web Service to get product descriptions of various items. The problem is that Amazon's content contains mark up that is sometimes destructive to the layout of my web page (e.g. unclosed DIVs, etc.). I want to sanitize the content I get from Amazon. My solution would be to do the following (my initial list so far): Remove unnecessary tags such as div, span, etc. while keeping tags like p, ul, ol, etc. Remove all attributes from all the tags (e.g. seems like there are style attributes in some of the tags) Remove excess white space (e.g. multiple spaces, carriage returns, new lines, tabs, etc.) Etc. Before I go off trying to build my solution, I'm wondering if anyone has a better idea (or an already existing solution). Thanks.

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  • Code editor with autocomplete

    - by Andrey
    I need to create a code editor for my own simple language: className.MethodName(parameterName = 2, ... ) I've created the appropriate grammar and autogenerate parser using ANTLR tool. Now I would like to have an autocomplete for class, method, variables and parameter names. This list should be context dependent, f.e. for "class." it should display methods and for "class.Method(" - parameters. I was going to parse the text and display the list depending on in which node the cursor is. The problem is that for incomplete code like "aaa.bbb(" the parser produces an error instead of a syntax tree. Any idea how to solve this problem? Maybe I'm on the wrong way and I shouldn't parse code to display autocomplete?

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  • Why does this JSON.parse code not work?

    - by SuZi
    I am trying to pass json encoded values from a php script to a, GnuBookTest.js, javascript file that initiates a Bookreader object and use the values i have passed in via the variable i named "result". The php script is sending the values like: <div id="bookreader"> <div id="BookReader" style="left:10px; right:10px; top:30px; bottom:30px;">x</div> <script type="text/javascript">var result = {"istack":"zi94sm65\/BUCY\/BUCY200707170530PM","leafCount":"14","wArr":"[893,893,893,893,893,893,893,893,893,893,893,893,893,893]","hArr":"[1155,1155,1155,1155,1155,1155,1155,1155,1155,1155,1155,1155,1155,1155]","leafArr":"[0,1,2,3,4,5,6,7,8,9,10,11,12,13]","sd":"[\"RIGHT\",\"LEFT\",\"RIGHT\",\"LEFT\",\"RIGHT\",\"LEFT\",\"RIGHT\",\"LEFT\",\"RIGHT\",\"LEFT\",\"RIGHT\",\"LEFT\",\"RIGHT\",\"LEFT\"]"}</script> <script type="text/javascript" src="http://localhost:8080/application/js/GnuBookTest.js"></script> </div> </div> and in the GnuBookTest.js file i am trying to use the values like: br = new BookReader(); // Return the width of a given page. br.getPageWidth = function(index) { return this.pageW[index]; } // Return the height of a given page. br.getPageHeight = function(index) { return this.pageH[index]; } br.pageW = JSON.parse(result.wArr); br.pageH = JSON.parse(result.hArr); br.leafMap = JSON.parse(result.leafArr); //istack is an url fragment for location of image files var istack = result.istack; . . . Using JSON.parse as i have written it above loads the Bookreader and uses my values correctly in a few web-browsers: Firefox, IE8, and desktop-Safari; but does not work at all in mac-Chrome, mobile-Safari, plus older versions of IE. Mobile safari keeps giving me a reference error msg: can't find variable: JSON. The other browsers just do not load the Bookreader and show the "x" instead, like they did not get the values from the php script. Where is the problem?

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  • Why the double.Parse throw error in live server and how to track?

    - by Kovu
    Hi, I build a website, that: reads data from a website by HttpWebRequest Sort all Data Parse values of the data and give out newly On local server it works perfect, but when I push it to my live server, the double.Parse fails with an error. So: - how to track what the double.parse is trying to parse? - how to debug live server? Lang is ASP.Net / C#.net 2.0

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  • Python/YACC: Resolving a shift/reduce conflict

    - by Rosarch
    I'm using PLY. Here is one of my states from parser.out: state 3 (5) course_data -> course . (6) course_data -> course . course_list_tail (3) or_phrase -> course . OR_CONJ COURSE_NUMBER (7) course_list_tail -> . , COURSE_NUMBER (8) course_list_tail -> . , COURSE_NUMBER course_list_tail ! shift/reduce conflict for OR_CONJ resolved as shift $end reduce using rule 5 (course_data -> course .) OR_CONJ shift and go to state 7 , shift and go to state 8 ! OR_CONJ [ reduce using rule 5 (course_data -> course .) ] course_list_tail shift and go to state 9 I want to resolve this as: if OR_CONJ is followed by COURSE_NUMBER: shift and go to state 7 else: reduce using rule 5 (course_data -> course .) How can I fix my parser file to reflect this? Do I need to handle a syntax error by backtracking and trying a different rule?

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  • Changing href atributes with nokogiri and ruby on rails

    - by fool
    Hi, I Have a HTML document with links links, for exemple: <html> <body> <ul> <li><a href="http://someurl.com/etc/etc">teste1</a></li> <li><a href="http://someurl.com/etc/etc">teste2</a></li> <li><a href="http://someurl.com/etc/etc">teste3</a></li> <ul> </body> </html> I want with Ruby on Rails, with nokogiri or some other method, to have a final doc like this: <html> <body> <ul> <li><a href="http://myproxy.com/?url=http://someurl.com/etc/etc">teste1</a></li> <li><a href="http://myproxy.com/?url=http://someurl.com/etc/etc">teste2</a></li> <li><a href="http://myproxy.com/?url=http://someurl.com/etc/etc">teste3</a></li> <ul> </body> </html> What's the best strategy to achieve this?

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