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• identifier token keyword antlr parser

  - by batman_for

  How to handle the case where the token 'for' is used in two different situations in the language to parse? Such as statement and as a "parameter" as the following example: echo for print example for i in {0..10..2} do echo "Welcome $i times" done Output: for print example Welcome 0 times Welcome 2 times Welcome 4 times Welcome 6 times Welcome 8 times Welcome 10 times Thanks.

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• Parsing whole project with semantic

  - by emacs_junkie

  I'm searching for a way to parse the whole directory with source code with semantic. Is this possible to do without explicitly opening each file in emacs ?

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• determining name of object loaded in R

  - by andrewj

  Imagine you have an object foo that you saved as saved.file.rda as follows: foo <- 'a' save(foo, file='saved.file.rda') Suppose you load saved.file.rda into an environment with multiple objects but forgot the name of the object that is in saved.file.rda. Is there a way in R to determine that name? You can do it the following way, which seems a little clunky: bar <- load('saved.file.rda') eval(parse(text=bar)) # this will pull up the object that was in saved.file.rda However, is there a better way of doing this?

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• How can I read a binary string in C#?

  - by Sergey

  There is a php script which sends a binary string to the client application: $binary_string = pack('i',count($result_matrix)); foreach ($result_matrix as $row) { foreach ($row as $cell) { $binary_string .= pack('d',$cell); } } echo $binary_string; Silverlight application receives $binary_string via POST protocol. How can I parse this binary string? Or maybe there is a better way to send matrix from PHP to Silverlight?

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• Caching XSD schema to reuse in several XML DOM parser tasks in Xerces

  - by Catalin Piti?

  How can I cache an XSD schema (residing on disk) to be reused when parsing XMLs in Xerces (C++)? I would like to load the XSD schema when starting the process, then, whenever I need to parse an XML, to validate it first using this loaded schema.

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• jsTree and SVG Editor conflict in active selected items?

  - by marknt15

  Hi, I'm using jsTree and SVG-Edit in the same file but there is a conflict in the active selected item. For example I clicked a tree item then I cannot draw in the svgcanvas div anymore. Maybe because of you click the item in jsTree then it's always selected and the svgcanvad div will not be active anymore? Any help, tips or tutorials will help. Thanks, Mark

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• Regular Expression for CSV with numbers

  - by Bernie Perez

  I'm looking for some regular expression to help parse my CSV file. The file has lines of number,number number,number Comment I want to skip number,number number,number Ex: 319,5446 564425,87 Text to skip 27,765564 I read each line into a string and I wanted to use some regular express to make sure the line matches the pattern of (number,number). If not then don't use the line.

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• understanding the anatomy of file formats and image formats

  - by numerical25

  I am trying to do some research on file formats especially image formats. Information such as header layouts for particular types of image formats and how to parse them using C++. If anyone can point me in the right direction of some good tutorials or books. that would be helpful. thanks

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• strange error in haskell about indentation of if-then-else

  - by Drakosha

  I have the following code: foo :: Int -> [String] -> [(FilePath, Integer)] -> IO Int foo _ [] _ = return 4 foo _ _ [] = return 5 foo n nameREs pretendentFilesWithSizes = do result <- (bar n (head nameREs) pretendentFilesWithSizes) if result == 0 then return 0 -- <========================================== here is the error else foo n (tail nameREs) pretendentFilesWithSizes I get an error on the line with the comment above, the error is: aaa.hs:56:2: parse error (possibly incorrect indentation) I'm working with emacs, there's no spaces, and i do not understand what did i do wrong.

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• Translate Ruby snippet to Java

  - by sipwiz

  How can I do the equivalent of the Ruby snippet below using Java? require 'net/http' res = Net::HTTP.get_response(URI.parse("http://somewhere.com/isalive")).body

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• Sql Server string to date conversion

  - by JosephStyons

  I want to convert a string like this: '10/15/2008 10:06:32 PM' into the equivalent DATETIME value in Sql Server. In Oracle, I would say this: TO_DATE('10/15/2008 10:06:32 PM','MM/DD/YYYY HH:MI:SS AM') This question implies that I must parse the string into one of the standard formats, and then convert using one of those codes. That seems ludicrous for such a mundane operation. Is there an easier way?

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• Unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR

  - by Cameron

  Hi I'm trying to run a WordPress plugin and I get the following error: Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /nfs/c03/h05/mnt/52704/domains/creathive.net/html/wp-content/plugins/qr-code-tag/lib/qrct/QrctWp.php on line 13 What would be the problem here? Line 13 is the public bit EDIT: Here is some code: class QrctWp { public $pluginName = 'QR Code Tag';

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• How do I switch Ruby-on-Rails into en-UK

  - by Nick Clarke

  Hi, I'm trying to switch one of my websites into en-UK so that I get the correct date and currency formats etc... I have found this yaml file: http://github.com/mattetti/globalite/blob/master/lang/rails/en-UK.yml Any ideas if there is a better one to use? I also checked here but could not see it: http://github.com/svenfuchs/rails-i18n/tree/master/rails/locale Thanks, Nick

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• Path parsing in rails

  - by fl00r

  Hi! I am looking for method for parsing route path like this: ActionController::Routing.new("post_path").parse #=> {:controller => "posts", :action => "index"} It should be opposite to url_for Upd I've found out: http://stackoverflow.com/questions/2222522/what-is-the-opposite-of-url-for-in-rails-a-function-that-takes-a-path-and-genera ActionController::Routing::Routes.recognize_path("/posts") So now I need to convert posts_path into "/posts"

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• Mistake in the Code

  - by vibha

  myTree.on('click',function(node){ if(node.isLeaf()) { Ext.Msg.alert("You are in value ",nodeValue,"whose name is",nodeName); alert("You are in value ",nodeValue,"whose name is",nodeName); } }); myTree is a TreePanel. I'm getting a tree but click function is not working. I'm very new to extjs. Help me out. Thanks in advance

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• IOS Paypal Phonegap Plugin errors

  - by Paul

  I'm trying to implement the Paypal Plugin for Phonegap (Iphone) - (https://github.com/phonegap/phonegap-plugins/tree/master/iPhone/PayPalPlugin). I've followed all the instructions but I get thefollowing error on build from the SAIOSPaypalPlugin.h file - Lexical or Preprocessor issue - PGPlugin.h not found I'm using latest Cordova version freshly downloaded from Phonegap site just weeks ago, so I'm not sure whats missing?

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• How to use fgets if you dont know the number of characters to be read.

  - by vette982

  I need to read a file and send the text from it to a string so I can parse it. However, the program won't know exactly how long the file is so what would I do if I wanted to use fgets, or is there a better alternative? Note: char * fgets ( char * str, int num, FILE * stream );

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• nokogiri vs hpricot?

  - by roshan

  Which one would you choose? My important attributes are (not in order) Support & Future enhancements Community & general knowledge base (on the Internet) Comprehensive (i.e proven to parse a wide range of *.*ml pages) Performance Memory Footprint (runtime, not the code-base)

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• Information Gain and Entropy

  - by dhorn

  I recently read this question regarding information gain and entropy. I think I have a semi-decent grasp on the main idea, but I'm curious as what to do with situations such as follows: If we have a bag of 7 coins, 1 of which is heavier than the others, and 1 of which is lighter than the others, and we know the heavier coin + the lighter coin is the same as 2 normal coins, what is the information gain associated with picking two random coins and weighing them against each other? Our goal here is to identify the two odd coins. I've been thinking this problem over for a while, and can't frame it correctly in a decision tree, or any other way for that matter. Any help? EDIT: I understand the formula for entropy and the formula for information gain. What I don't understand is how to frame this problem in a decision tree format. EDIT 2: Here is where I'm at so far: Assuming we pick two coins and they both end up weighing the same, we can assume our new chances of picking H+L come out to 1/5 * 1/4 = 1/20 , easy enough. Assuming we pick two coins and the left side is heavier. There are three different cases where this can occur: HM: Which gives us 1/2 chance of picking H and a 1/4 chance of picking L: 1/8 HL: 1/2 chance of picking high, 1/1 chance of picking low: 1/1 ML: 1/2 chance of picking low, 1/4 chance of picking high: 1/8 However, the odds of us picking HM are 1/7 * 5/6 which is 5/42 The odds of us picking HL are 1/7 * 1/6 which is 1/42 And the odds of us picking ML are 1/7 * 5/6 which is 5/42 If we weight the overall probabilities with these odds, we are given: (1/8) * (5/42) + (1/1) * (1/42) + (1/8) * (5/42) = 3/56. The same holds true for option B. option A = 3/56 option B = 3/56 option C = 1/20 However, option C should be weighted heavier because there is a 5/7 * 4/6 chance to pick two mediums. So I'm assuming from here I weight THOSE odds. I am pretty sure I've messed up somewhere along the way, but I think I'm on the right path! EDIT 3: More stuff. Assuming the scale is unbalanced, the odds are (10/11) that only one of the coins is the H or L coin, and (1/11) that both coins are H/L Therefore we can conclude: (10 / 11) * (1/2 * 1/5) and (1 / 11) * (1/2) EDIT 4: Going to go ahead and say that it is a total 4/42 increase.

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• How to get the linux folder and file icons and names in java?

  - by André

  I'm creating a tree of folders and files in java. Windows and OSX return the system icons and name with the following code: new JFileChooser().getIcon(File f); new JFileChooser().getName(File f); Is there any possibility to get the icons and name of unix systems?. A system command would be ok too. Thanks.

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• What is the best algorithm to use in creating binary trees??

  - by Hanseh

  I've been doing a research about the best algorithm to use in creating a binary tree implementation. THe top entry in my list is nested sets. Are there any other alternative or better algorithm??

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• How to replace empty string with zero in comma-separated string?

  - by dsaccount1

  "8,5,,1,4,7,,,,7,,1,9,3,6,,,8,6,3,9,,2,5,4,,,,,3,2,,,7,4,1,1,,4,,6,9,,5,,,,5,,,1,,6,3,,,6,5,,,,7,4,,1,7,6,,,,8,,5,,,7,1,,3,9," I'm doing a programming challenge where i need to parse this sequence into my sudoku script. Need to get the above sequence into 8,5,0,1,4,7,0,0,0,7,0,1,9,3,6,0,0,8......... I tried re but without success, help is appreciated, thanks.

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• External event to Fullcalendar

  - by enfix

  I need to create a dinamic page with a Fullcalendar plugin. I want to drag event (div) to calendar from a sidebar. Any idea to do this with Fullcalendar or with other plugin ? Any example ? I found this link http://github.com/arshaw/fullcalendar/tree/fcdraggable, but don't work fine and it has some bug.

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• how to detect when a new files has been uploaded with apache / php

  - by frosty

  I need to determind when a file has been uploaded via an ftp account so i can parse the data and insert into a db. I could do this 2 different ways, either set up a schedule or watch the directory for any change. Either option would be fine. I'm new to the apache /php space so any keywords that i can search upon would be handy. Thanks.

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• HierarchicalDataTemplate Distinct leaves

  - by miguel

  I have a set of data that is structured like this: ItemA.GroupA ItemB.GroupA ItemC.GroupB ItemD.GroupC I need to present the data in a WPF Tree View like this: GroupA --- ItemA --- ItemB GroupB --- ItemC GroupC --- ItemD What XAML can I use to group the leaves by distinct value? For instance, there could be multple items in the collection which are GroupA.ItemA, however, I only want to present the node and leaf once.

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