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• I'm getting this exception : Unresolved compilation problems

  - by Stephan

  I get this exception after i removed from my project the jars (pdfbox ,bouncycastle etc) and moved them to another folder but i included them in the build path ... at the first line eclipse shows this error( the constructor PDFParser(InputStream) refers to missing type InputStream) -altought FileInputStream is extended from InputStream- and i don't know why? FileInputStream in = new FileInputStream(path); PDFParser parser = new PDFParser(in); PDFTextStripper textStripper = new PDFTextStripper(); parser.parse(); String text = textStripper.getText(new PDDocument(parser.getDocument())); any ideas? ** Exception in thread "AWT-EventQueue-0" java.lang.Error: Unresolved compilation problems: The constructor PDFParser(InputStream) refers to the missing type InputStream The constructor PDFTextStripper() refers to the missing type IOException The method parse() from the type PDFParser refers to the missing type IOException The method getText(PDDocument) from the type PDFTextStripper refers to the missing type IOException The method getDocument() from the type PDFParser refers to the missing type IOException The method getDocument() from the type PDFParser refers to the missing type IOException The method close() from the type COSDocument refers to the missing type IOException **

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• no matching function for call to 'getline'

  - by WTP

  I have a class called parser: class parser { const std::istream& stream; public: parser(const std::istream& stream_) : stream(stream_) {} ~parser() {} void parse(); }; In parser::parse I want to loop over each line, so I use std::getline: std::getline(stream, line) The compiler gives me this error, however: src/parser.cc:10:7: error: no matching function for call to 'getline' std::getline(stream, line); ^~~~~~~~~~~~ But the first argument to std::getline is of type std::istream&, right? What could I be doing wrong?

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• Simple PHP Regex question

  - by Dave Kiss

  Hi all, I'd like to validate a field in a form to make sure it contains the proper formatting for a URL linking to a Vimeo video. Below is what I have in Javascript, but I need to convert this over to PHP (not my forte) Basically, I need to check the field and if it is incorrectly formatted, I need to store an error message as a variable.. if it is correct, i store the variable empty. // Parse the URL var PreviewID = jQuery("#customfields-tf-1-tf").val().match(/http:\/\/(www.vimeo|vimeo)\.com(\/|\/clip:)(\d+)(.*?)/); if ( !PreviewID ) { jQuery("#cleaner").html('<div id="vvqvideopreview"><?php echo $this->js_escape( __("Unable to parse preview URL. Please make sure it's the <strong>full</strong> URL and a valid one at that.", 'vipers-video-quicktags') ); ?></div>'); return; } The traditional vimeo url looks like this: http://www.vimeo.com/10793773 Thanks!

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• JetBrains dotTrace, is it possible to profile source code line by line? else I need another tool

  - by m3ntat

  I am using JetBrains dotTrace, I've profiled my app which is entirely CPU bound. But the results as you walk down the tree don't sum to the level above in the tree, I only see method calls not the body lines of the node in questions method. Is it possible to profile the source code line by line. i.e for one node: SimulatePair() 99.04% --nextUniform() 30.12% --IDCF() 24.08% So the method calls nextUniform + IDCF use 54% of the time in SimulatePair (or 54% total execution time I'm not sure how to read this) regardless what is happening the other 46% of SimulatePair I need some detail on a line by line basis. Any help or alternative tools is much appreciated. Thanks

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• Different url scheme for Zend Framework

  - by ChrisRamakers

  For our CMS we have a site manager that defines the site's tree structure (sitemap if you want to call it that). A possible url is www.example.com/our-team/developers/chris/ which would map in the tree structure to the node chris, child old developers which is in turn a child of out-team. All this is in place and working the the wonderfully implemented Nested Set behavior in doctrine. The only thing is that i'm struggling to get it working in the front end of our website. By default Zend framework's request object expects controller/action/key/value/key/value/... URI scheme but that isn't quite fitting my needs, i would like to skip the whole controller, action and key part and restrict to values. Something like value1/value2/value3/value4/... Anyone has an idea how to accomplish this?

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• CherryPy configuration tools.staticdir.root problem

  - by Alan Harris-Reid

  Hi there, How can I make my static-file root directories relative to my application root folder (instead of a hard-coded path)? In accordance with CP instructions (http://www.cherrypy.org/wiki/StaticContent) I have tried the following in my configuration file: tree.cpapp = cherrypy.Application(cpapp.Root()) tools.staticdir.root = cpapp.current_dir but when I run cherrpy.quickstart(rootclass, script_name='/', config=config_file) I get the following error builtins.ValueError: ("Config error in section: 'global', option: 'tree.cpapp', value: 'cherrypy.Application(cpapp.Root())'. Config values must be valid Python.", 'TypeError', ("unrepr could not resolve the name 'cpapp'",)) I know I can do configuration from within the main.py file just before quickstart is called (eg. using os.path.abspath(os.path.dirname(file))), but I prefer using the idea of a separate configuration file if possible. Any help would be appreciated (in case it is relevant, I am using CP 3.2 with Python 3.1) TIA Alan

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• Socket Communication in C#- IP-Port

  - by Ahmet Altun

  I am testing my socket programs at home, in local network. Server and client programs are running on seperate machines. Server program socket is binded as: serverSocket.Bind(new IPEndPoint(IPAddress.Parse("127.0.0.1"), 8999)); Client program (on the other computer) is connected as: clientSocket.Connect(IPAddress.Parse("192.168.2.3"), 8999); Why can Client not communicate with server? Do I need to make some firewall configuration or something like that? Or am I writing Server Ip incorrectly to the Client? (I got it from cmd-ipconfig of server)

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• Exception declared on ANTLR grammar rule ignored

  - by Kaleb Pederson

  I have a tree parser that's doing semantic analysis on the AST generated by my parser. It has a rule declared as follows: transitionDefinition throws WorkflowStateNotFoundException: /* ... */ This compiles just fine and matches the rule syntax at the ANTLR Wiki but my exception is never declared so the Java compiler complains about undeclared exceptions. ./tool/src/main/antlr3/org/antlr/grammar/v3/ANTLRv3.g shows that it's building a tree (but I'm not actually positive if it's the v2 or v3 grammar that ANTLR 3.2 is using): throwsSpec : 'throws' id ( ',' id )* -> ^('throws' id+) ; I know I can make it a runtime exception, but I'd like to use my exception hierarchy. Am I doing something wrong or should that syntax work?

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• XMLReader in silverlight <test /> type tag problem

  - by Ummar

  Hi I am parsing XML in silverlight, in my XML I have one tag is like <test attribute1="123" /> <test1 attribute2="345">abc text</test1> I am using XMLReader to parse xml like using (XmlReader reader = XmlReader.Create(new StringReader(xmlString))) { // Parse the file and display each of the nodes. while (reader.Read()) { switch (reader.NodeType) { case XmlNodeType.Element: //process start tag here break; case XmlNodeType.Text: //process text here break; case XmlNodeType.XmlDeclaration: case XmlNodeType.ProcessingInstruction: break; case XmlNodeType.Comment: break; case XmlNodeType.EndElement: //process end tag here break; } } } but the problem is that for test tag no EndElement is received? which is making my whole program logic wrong. (for test1 tag all works fine). Please help me out.

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• Localize node texts in treeview using resource files

  - by Obalix

  For a project I need a tree view that allows the user to select a module, which then is displayed in a content area. The project relies heavily on localization and this is provided by the resource files. Now I discovered today, that the text that are assigned to preset tree view nodes are not contained in the resource files. So the question is whether there is a way of doing this, short of mapping the elemenst in code. I.e. assigning a name to the node, running over all nodes and pulling the resources from the resouce manager based on the node name. This is what I am currently doing, however, it just doesn't "feel" right: private void TranslateNodes(TreeNodeCollection treeNodeCollection) { var rm = Resources.ResourceManager; foreach (TreeNode node in treeNodeCollection) { node.Text = rm.GetString(node.Name + "_Text"); this.TranslateNodes(node.Nodes); } } Thanks!

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• XML: When to use attributes instead of child nodes?

  - by Rosarch

  For tree leaves in XML, when is it better to use attributes, and when is it better to use descendant nodes? For example, in the following XML document: <?xml version="1.0" encoding="utf-8" ?> <savedGame> <links> <link rootTagName="zombies" packageName="zombie" /> <link rootTagName="ghosts" packageName="ghost" /> <link rootTagName="players" packageName="player" /> <link rootTagName="trees" packageName="tree" /> </links> <locations> <zombies> <zombie> <positionX>41</positionX> <positionY>100</positionY> </zombie> <zombie> <positionX>55</positionX> <positionY>56</positionY> </zombie> </zombies> <ghosts> <ghost> <positionX>11</positionX> <positionY>90</positionY> </ghost> </ghosts> </locations> </savedGame> The <link> tag has attributes, but it could also be written as: <link> <rootTagName>trees</rootTagName> <packageName>tree</packageName> </link> Similarly, the location tags could be written as: <zombie positionX="55" positionY="56" /> instead of: <zombie> <positionX>55</positionX> <positionY>56</positionY> </zombie> What reasons are there to prefer one over the other? Is it just a stylistic issue? Any performance considerations?

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• Intellij Idea 13.x and ASM 5.x library incompatible?

  - by Jarrod Roberson

  I can't get Intellij Idea 13.0 to compile my code against ASM 5.0.3 I have a multi-module Maven project. It compiles and installs successfully. Apparently com.google.findbugs:findbugs has a dependency on asm:asm:3.3 and I want to use org.ow2.asm:asm:5.0.3 to manipulate some bytecode. So in the parent pom.xml I exclude the asm:asm:3.3 dependencies from the classpath. This works fine when I run mvn install from the command line. I can't get the Build - Make Project menu selection to work in Intellij Idea. Here is the relevant parts of my pom.xml files. parent.pom <dependency> <groupId>org.ow2.asm</groupId> <artifactId>asm</artifactId> <version>5.0.3</version> </dependency> <dependency> <groupId>org.ow2.asm</groupId> <artifactId>asm-tree</artifactId> <version>5.0.3</version> </dependency> <dependency> <groupId>org.ow2.asm</groupId> <artifactId>asm-util</artifactId> <version>5.0.3</version> </dependency> <dependency> <groupId>org.ow2.asm</groupId> <artifactId>asm-commons</artifactId> <version>5.0.3</version> </dependency> <dependency> <groupId>com.google.code.findbugs</groupId> <artifactId>findbugs</artifactId> <version>2.0.3</version> <exclusions> <exclusion> <groupId>asm</groupId> <artifactId>asm</artifactId> </exclusion> <exclusion> <groupId>asm</groupId> <artifactId>asm-commons</artifactId> </exclusion> <exclusion> <groupId>asm</groupId> <artifactId>asm-tree</artifactId> </exclusion> </exclusions> </dependency> Here is the code that is failing 18 public static void main(final String[] args) throws IOException 19 { 20 final InputStream is = NotEmptyTest.class.getResourceAsStream("/com/vertigrated/annotation/NotEmptyTest.class"); 21 final ClassReader cr = new ClassReader(is); 22 final ClassNode cn = new ClassNode(); 23 cr.accept(cn, 0); 24 for (final MethodNode mn : cn.methods) 25 { 26 - 38 snipped for brevity 39 } 40 } 41 } Here is the error message: Information:Using javac 1.7.0_25 to compile java sources Information:java: Errors occurred while compiling module 'tests' Information:Compilation completed with 1 error and 2 warnings in 2 sec Information:1 error Information:2 warnings /<path to my source code>/NotEmptyTest.java Error:Error:line (24)java: incompatible types required: org.objectweb.asm.tree.MethodNode found: java.lang.Object Warning:Warning:java: /<path to my project>//NotEmptyTest.java uses unchecked or unsafe operations. Warning:Warning:java: Recompile with -Xlint:unchecked for details. As you can see in the screen capture, it reports the correct version of the libraries in the Javadoc but the AutoComplete shows the old 3.3 non-typesafe return value of List instead of List<MethodNode>: Here is what Maven knows, which is correct: [INFO] --- maven-dependency-plugin:2.8:list (default-cli) @ tests --- [INFO] [INFO] The following files have been resolved: [INFO] com.google.code.findbugs:bcel:jar:2.0.1:compile [INFO] junit:junit:jar:4.11:test [INFO] xml-apis:xml-apis:jar:1.0.b2:compile [INFO] com.apple:AppleJavaExtensions:jar:1.4:compile [INFO] javax.inject:javax.inject:jar:1:compile [INFO] jaxen:jaxen:jar:1.1.6:compile [INFO] org.ow2.asm:asm-util:jar:5.0.3:compile [INFO] com.google.inject:guice:jar:3.0:compile [INFO] dom4j:dom4j:jar:1.6.1:compile [INFO] com.google.code.findbugs:jFormatString:jar:2.0.1:compile [INFO] net.jcip:jcip-annotations:jar:1.0:compile [INFO] org.ow2.asm:asm-tree:jar:5.0.3:compile [INFO] commons-lang:commons-lang:jar:2.6:compile [INFO] com.google.code.findbugs:jsr305:jar:2.0.1:compile [INFO] org.hamcrest:hamcrest-core:jar:1.3:test [INFO] aopalliance:aopalliance:jar:1.0:compile [INFO] com.google.code.findbugs:findbugs:jar:2.0.3:compile [INFO] org.ow2.asm:asm-commons:jar:5.0.3:compile [INFO] org.ow2.asm:asm:jar:5.0.3:compile How do I get Intellij Idea to use the correct dependency internally?

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• adding model validation errors in rescue

  - by ash34

  I have the following model with a virtual attribute class Mytimeperiod < ActiveRecord::Base validates presence of :from_dt validates_format_of :from_dt, :with => /\A\d{2}\/\d{2}\/\d{4}\Z/, :message => "format is mm/dd/yyyy" def from_dt self.from_date.strftime("%m/%d/%Y") if !self.from_date.blank? end def from_dt=(from_dt) self.from_date = Date.parse(from_dt) rescue self.errors.add_to_base("invalid from dt") end end I am using <%= f.error_messages %> to display the error messages on the form. I am using from_dt as a virtual attribute (string). The 'presence of' and 'format of' validation errors show up on the form, but when the user enters an invalid date format on the form and Date.Parse raises an exception I have a 'errors.add_to_base' statement in the rescue clause. Can anyone tell me why this error does not show up in the form error messages when I disable the 'format of' validation. thanks.

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• Creating an AST node in Erlang

  - by dagda1

  Hi, I am playing about with Erlang and I am trying to write a simple arithmetic parser. I want to try and parse the following expression: ((12+3)-4) I want to parse the expression into a stack of AST nodes. When parsing this expression, I would first of all create a binary expression for the (12+3) expression which would look something like this in C#: var binaryStructure = new BinaryStructure(); binaryStructure.Left = IntegerLiteralExpression(12); binaryStructure.Right = IntegerLiteralExpression(4); binaryStructure.Operator = binaryExpression.Operator != BinaryOperatorType.Addition; I am quite new to Erlang and I am wondering how I would go about creating a structure like this in Erlang that I can place on a List that I would use as the stack of expressions. Can anyone suggest how to create such a tree like structure? Would a function be a good fit? Thanks Paul

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• GWT's JSONParser producing incorrect values for numbers.

  - by WesleyJohnson

  I'm work with GWT and parsing a JSON result from an ASP.NET webservice method that returns a DataTable. I can parse the result into a JSONvalue/JSONObject just fine. The issue I'm having is that one my columns in a DECIMAL(20, 0) and the values that are getting parsed into JSON aren't exact. To demonstrate w/o the need for a WS call, in GWT I threw this together: String jsonString = "{value:4768428229311981600}"; JSONObject jsonObject = JSONParser.parse( jsonString ).isObject(); Window.alert( jsonObject.toString() ); This in turn alerts: {"value":4768428229311982000} I'm under the understanding that GWT's JSONParser is just using eval() to do the parsing, so is this some sort of number/precision issue with JavaScript that I've never been aware of. I'll admit I don't work with numbers that much in JavaScript and I might be able to work around this by changing the .NET WebService to return this column as string, but I'd really rather not do that. Thanks for any help.

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• wxPython: Sending a signal to several widgets

  - by cool-RR

  I am not even sure how to ask this question. I want something that is like the wxPython event system, but a bit different. I'll try to explain. When there is a certain change in my program (a "tree change", never mind what that is,) I want to send a signal to all the widgets in my program, notifying them that a "tree change" has occurred, and they should change their display in response. How do I do this? It sounds a little bit like wxPython events, but not really, since events don't spread to all widgets, as far as I know. What would be a good way to do this?

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• How well do zippers perform in practice, and when should they be used?

  - by Rob

  I think that the zipper is a beautiful idea; it elegantly provides a way to walk a list or tree and make what appear to be local updates in a functional way. Asymptotically, the costs appear to be reasonable. But traversing the data structure requires memory allocation at each iteration, where a normal list or tree traversal is just pointer chasing. This seems expensive (please correct me if I am wrong). Are the costs prohibitive? And what under what circumstances would it be reasonable to use a zipper?

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• Parsing atom/rss feed containing multiple <link> tags with Haml on RoR

  - by fenderplayer

  So, firstly, heres an atom feed snippet which i am trying to parse: // http://somelink.com/atom <feed xmlns="http://www.w3.org/2005/Atom"> <entry> <title>Title Here</title> <link href="http://somelink.com/link1&amp;amp;ref=rss" rel="alternate" /> <link href="http://somelink.com/link2&amp;amp;ref=rss" rel="tag:somelink.com/apply_url"/> ... </entry> i pull the atom feed like so, // In controller index method @rss = SimpleRSS.parse open('http://somelink.com/atom') Then i output the response in the view, which i am writing using haml, as follows: - @rss.entries.each do |item| .title-div = item.title .title-link = item.link //outputs the first link I could run a second loop for the links but is there a way to get the second link without it? Like reading the "rel" attribute and outputting the correct link? How do i do this in haml/rails?

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• Jface's CheckboxTreeViewer how to set initial selection

  - by Hypercube

  Hello. This question may sounds trivial, but i am struggling with the issue, so, please help if u can. So, here it is : i am using a CheckboxTreeViewer for some good reasons. I've google-it for some class usages, and i am currently able to check/uncheck all the childrens of a selected node, and to preserve the selection after a live search with a custom implementation of the StyledCellLabelProvider provider. All good so far. However, so far i am unable to programatically select one or more elements of the tree viewer after i display the widget and call the setInput() method of the viewer. So, let's assume for instance that the tree will have 10 main nodes, and 5 leafs on node 6. My question is how do i set the checked state of the 3rd leaf? Thank u.

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• Continuous builds and Agile vs commit often

  - by Mark Underwood

  Hi All, I'm just doing some formal training in Agile at the moment and one question I have is about the value of Continuous Builds vs value of committing to the version control system often. My understanding with version control is that its better to commit often, because then you have history and the ability to go back to previous changes in a fine grained way. My understanding with Agile and continuous build is that its there to put pressure on the developers to always have working code. That to break the source tree is a taboo thing to do. Now i agree with both of these sentiments, but it occurs to be that sometimes these might be working against each other. You maybe in the middle of a largish code change and want to commit code to make sure you have history, but this will break the source tree. Anybody got any thoughts on this? Cheers Mark.

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• Tool for parsing smtp logs that finds bounces

  - by Željko Filipin

  Our web application sends e-mails. We have lots of users, and we get lots of bounces. For example, user changes company and his company e-mail is no longer valid. To find bounces, I parse smtp log file with log parser. Some bounces are great, like 550+#[email protected]. There is [email protected] in bounce. But some do not have e-mail in error message, like 550+No+such+recipient. I have created simple ruby script that parses logs (uses log parser) to find which mail caused something like 550+No+such+recipient. I am just surprised that I could not find a tool that does it. I have found tools like zabbix and splunk for log analysis, but they look like overkill for such simple task. Anybody knows a tool that would parse smtp logs, find bounces and e-mails that cause them? Edit: smtp server is microsoft smtp server.

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• Parsing JPEG file format: Format of entropy-coded segment (ECS) segments?

  - by me2

  I'm having difficulty understanding the ITU-T T.81 spec for the JPEG file format. Hopefully someone else here has tried to parse JPEG files and/or knows about the details of this file format. The spec indiates that the ECS0 segment starts after the SOS segment but I can't find where in the spec it actually talks about the format of the ECS0 segment or how do detect its start. Simple JPEG implementations online are of limited help because they assume many things about the JPEGs they parse. Can anyone point me in the right direction?

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• Tarballing without git metadata

  - by zaf

  My source tree contains several directories which are using git source control and I need to tarball the whole tree excluding any references to the git metadata or custom log files. I thought I'd have a go using a combo of find/egrep/xargs/tar but somehow the tar file contains the .git directories and the *.log files. This is what I have: find -type f . | egrep -v '\.git|\.log' | xargs tar rvf ~/app.tar Can someone explain my misunderstanding here? Why is tar processing the files that find and egrep are filtering? I'm open to other techniques as well.

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• How to find NSOutlineView row index when using NSTreeController

  - by velocityb0y

  I'm using an NSTreeController to manage nodes for an NSOutlineView. When the user adds a new item, I create a new object and insert it: EntityViewEntityNode *newNode = [EntityViewEntityNode nodeWithName:@"New entity" entity:newObject]; // Insert at end of group // NSIndexPath *insertAt = [pathOfGroupNode indexPathByAddingIndex:[selected.children count]]; [entityCollectionTreeController insertObject:newNode atArrangedObjectIndexPath:insertAt]; Now I'd like to open the table column for edit so the user can name the new item. This seems logical: NSInteger row = [entityCollectionOutlineView rowForItem:newNode]; [entityCollectionOutlineView editColumn:0 row:row withEvent:nil select:YES]; However, row is always -1 indicating the object isn't found. Poking around reveals that the tree controller is not actually putting my objects directly in the tree, but is wrapping them in a node object of its own. Anyone have insight into how I would go about getting a row index relative to the outline view, so I can do this (without, hopefully, enumerating everything in the outline view and figuring out the mapping back to my node?)

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• Codeigniter + Dwoo

  - by RedTruck

  I got problem when implementing my CMS using Codeigniter 1.7.2 and Dwoo. I use Phil Sturgeon Dwoo library. My problem is I want user create template from the admin panel, it means all template will be stored into database including all Dwoo variable and functions.My questions: Is it possible to load dwoo template from database? How to parse dwoo variable or function from database? I tried to load content from database which is include dwoo var and function inside it, and i have tried to do evaluation using dwoo eval() function and phil sturgeon string_parse() but still have no luck. for example: my controller $data['header'] = "<h1>{$header}</h1>"; --> this could be loaded from database $this->parser->parse('header',$data); my view {$header} Thank you,

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