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• How do you get the glyph for a character encoded as '&#333;' from a utf-8 encoded database field usi

  - by AE

  I have a MySQL database table with a collation of 'utf8_general_ci' and the value in the field is: x & #299; bán yá wén (without the spaces). When this is converted (for example by StackOverflow's editor) it looks like this: xī bán yá wén where the second character looks like a lower case i with a bar over the top. In PHP, what function converts the & #299 ; entity into the ī character? I've tried using html_entity_decode($str,ENT_COMPAT,'UTF-8'), however I get characters like the following: yÄ«n wén or zhÅ•ng wén I'm pretty sure there's something I don't understand about the decoding, which is why I'm using the wrong function. Can anyone shed some light on how to get the single character glyph that's represented by the entity & #299 and similar high-number characters above 255? Many thanks, AE

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• Can I embed an icon to a .hta file?

  - by BoltBait

  I have written an HTML Application (hta file) and am wondering if there is a way to embed an icon file into the hta file itself. I have seen html emails that include embedded graphic files, is there any way to do this with html applications and icons? HTA files have an HTA:APPLICATION tag that allows you to specify an icon, but I want to have only a single file for download. I don't want to have an external icon file. Is this possible? More info on hta files here: HTA files.

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• Debugging SQL in PGAdmin3 when sql contains variables

  - by Mr Shoubs

  In SQL Server I could copy sql code out of an application and paste it into SSMS, declare & assign vars that exist in the sql and run.. yay great debugging scenario. e.g. (please note I am rust and syntax may be incorrect) declare @x as varchar(10) set @x = 'abc' select * from sometable where somefield = @x I want to do something simular with postgres in pgadmin3 (or another postgres tool, anyy reccomendations?) I realise you can create pgscript, but it doesn't appear to be very good, for example, if I do the equlivent of above, it doesn't put the single quotes around the value in @x, nor does it let me by doubling them up and you don't get a table out after - only text... Currently I have a peice of sql someone has written that has 3 unique varibles in it which are used around 6 times each... So the question is how do other people debug sql this sql EFFICIENTLY, preferably in a simular fashion to my sql server days.

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• Why aren't double quotes and backslashes allowed in strings in the JSON standard?

  - by Dan Herbert

  If I run this in a JavaScript console in Chrome or Firebug, it works fine. JSON.parse('"\u0027"') // Escaped single-quote But if I run either of these 2 lines in a Javascript console, it throws an error. JSON.parse('"\u0022"') // Escaped double-quote JSON.parse('"\u005C"') // Escaped backslash RFC 4627 section 2.5 seems to imply that \ and " are allowed characters as long as they're properly escaped. The 2 browsers I've tried this in don't seem to allow it, however. Is there something I'm doing wrong here or are they really not allowed in strings? I've also tried using \" and \\ in place of \u0022 and \u005C respectively. I feel like I'm just doing something very wrong, because I find it hard to believe that JSON would not allow these characters in strings, especially since the specification doesn't seem to mention anything that I could find saying they're not allowed.

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• How can I traverse the EMF object tree generated by Xtext?

  - by reprogrammer

  I'm using Xtext to define my DSL. Xtext generates a parser that lets me traverse the EMF model of my input DSL. I'd like to translate this EMF model into some other tree. To do this translation, I need to traverse the tree. But, I couldn't find a visitor class for the EMF model generated by Xtext. The closest thing that I've found is a Switch class that visits a single node. I can traverse the EMF model myself and invoke the Switch class on each node that I visit. But, I wonder if there exists a visitor functionality in Xtext that implements the model traversal.

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• SCons: How to use the same builders for multiple variants (release/debug) of a program

  - by OK

  The SCons User Guide tells about the usage of Multiple Construction Environments to build build multiple versions of a single program and gives the following example: opt = Environment(CCFLAGS = '-O2') dbg = Environment(CCFLAGS = '-g') o = opt.Object('foo-opt', 'foo.c') opt.Program(o) d = dbg.Object('foo-dbg', 'foo.c') dbg.Program(d) Instead of manually assigning different names to the objects compiled with different environments, VariantDir() / variant_dir sounds like a better solution... But if I place the Program() builder inside the SConscript: Import('env') env.Program('foo.c') How can I export different environments to the same SConscript file? opt = Environment(CCFLAGS = '-O2') dbg = Environment(CCFLAGS = '-g') SConscript('SConscript', 'opt', variant_dir='release') #'opt' --> 'env'??? SConscript('SConscript', 'dbg', variant_dir='debug') #'dbg' --> 'env'??? Unfortunately the discussion in the SCons Wiki does not bring more insight to this topic. Thanks for your input!

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• Form submit event problem

  - by developer 2010

  <form id="form1" runat="server" onsubmit="return CheckForm(this)"> <script type="text/javascript" language="javascript"> function CheckForm(frm) { if(CheckEntireForm(frm) == false) return false; } </script> Hello EveryBody Please help me to get solution I've used a javascript function on form's onSubmit event like which validates my page's textboxes etc. NOTE: i am not using asp.net's validation. i have got my own validation classes I've also used a dropdownlist with auto post back set to true in asp.net 2.0 when dropdownlist's selected index is changed it calls form's onsubmit while this did not use to happen in asp.net 1.1 I've used this on 140 pages in my website the worst case will be to call CheckForm(this.form) on my save buttons client click on all the pages. I am looking for a backword compatibility solution which can be applied at a single place like web.config or some class etc. i am using asp.net and javascript

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• Make only one row show after search. flexgrid vb6

  - by Andeeh

  So i have flexgrid in my vb6 project I'm working on. It has names on each row, and I have a drop down so the user can select what name they want to see more info for, here is what I have. Dim target_name As String Dim r As Integer ' Get the name. target_name = Combo1 If Len(target_name) = 0 Then Exit Sub ' Search for the name, skipping the column heading row. target_name = LCase$(target_name) For r = 1 To MSFlexGrid1.Rows - 1 If LCase$(MSFlexGrid1.TextMatrix(r, 0)) = _ target_name Then ' We found the target. Select this row. MSFlexGrid1.Row = r MSFlexGrid1.RowSel = r MSFlexGrid1.Col = 0 MSFlexGrid1.ColSel = MSFlexGrid1.Cols - 1 ' Make the row visible. MSFlexGrid1.TopRow = r Exit Sub End If Next r That works well, but it shows everything below that name too, I would like it to single out only the name selected. Any help would be great.

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• Seeting up MySQL database

  - by mathew

  I do have single database and near about 11 tables. while my web page is opening informations from these 11 tables will be accessed same time. according to my current settings what I did now is for each table database is opening and closing. say I had given username and password to open databse for each table and close after retrieving information from that table. Is this the right way to do it?? I feel because of this the database is opeing and closing 11 times!!!! Am I right?? is this the right way to do that?? THanks Mathew

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• Mahout Naive Bayes Classifier for Items

  - by Nimesh Parikh

  Team, I am working on a project where i need to classify Items into certain category. I have a single file as input; which contains target variable and space separated features. My training data will look like Category Name [Tab] DataString Plumbing [Tab] Pipe Tap Plastic Pipe PVC Pipe Cold Water Line Hot Water Line Tee outlet up Elbow turned up Elbow turned down Gate valve Globe valve Paint [Tab] Ivory Black Burnt Umber Caput Mortuum Violet Earth Red Yellow Ochre Titanium White Cadmium Yellow Light Cadmium Yellow Deep Cloths [Tab] Shirt T-Shirt Pent Jeans Tee Cargo Well, I have really big set of Category. I have couple of question here am i using correct data for Training? If no then what should i use? Once I train and Test my model, what is next step? How can i use output? Please help me with this Thanks, Nimesh

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• How to re-focus to a text field when focus is lost on a HTML form?

  - by Horace Ho

  There is only one text field on a HTML form. Users input some text, press Enter, submit the form, and the form is reloaded. The main use is barcode reading. I use the following code to set the focus to the text field: <script language="javascript"> <!-- document.getElementById("#{id}").focus() //--> </script> It works most of the time (if nobody touches the screen/mouse/keyboard). However, when the user click somewhere outside the field within the browser window (the white empty space), the cursor is gone. One a single field HTML form, how can I prevent the cursor from getting lost? Or, how to re-focus the cursor inside the field after the cursor is lost? thx!

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• multiple modules under one solution

  - by Vicky

  I have a project under which various distributed applications are placed; the whole project is under a single dll. Hence, if any issue occurs we need to re-build the whole application to run or import to our server. I am looking for the best possible way to make the build process faster and also bit worried about the size of the DLL. Is it a good way to have separate dll for all the modules or split the application in multiple projects??? Can, anyone suggest the best way or example to deal with this situation. Any help would be appreciated. Thanks in advance.

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• May the FileInputStream.available foolish me?

  - by Tom Brito

  This FileInputStream.available() javadoc says: Returns an estimate of the number of remaining bytes that can be read (or skipped over) from this input stream without blocking by the next invocation of a method for this input stream. The next invocation might be the same thread or another thread. A single read or skip of this many bytes will not block, but may read or skip fewer bytes. In some cases, a non-blocking read (or skip) may appear to be blocked when it is merely slow, for example when reading large files over slow networks. I'm not sure if in this check: if (new FileInputStream(xmlFile).available() == 0) can I rely that empty files will always return zero?

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• Visualize compiler warnings

  - by christoffer

  I'm looking for a way to visualize compiler warnings and remarks, by annotating or otherwise showing which lines cause a report. This is much like a modern IDE like NetBeans or Eclipse already does, but I'd like to take output from several compilers (and other static code analysis tools) at once, and create one single annotation in order to get a better overview. The rationale is that we've seen some problems go completely undetected by, say, Visual Studio 2005, but accurately detected with a proprietary ARM compiler, and vice versa. Cross-referencing warnings could potentially locate problems better, but doing so completely manually is infeasible. Have you heard of such a tool? Could an open-source IDE like Eclipse be extended to use several compilers at once, or has it already been done?

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• One large file or multiple small files?

  - by Dan

  I have an application (currently written in Python as we iron out the specifics but eventually it will be written in C) that makes use of individual records stored in plain text files. We can't use a database and new records will need to be manually added regularly. My question is this: would it be faster to have a single file (500k-1Mb) and have my application open, loop through, find and close a file OR would it be faster to have the records separated and named using some appropriate convention so that the application could simply loop over filenames to find the data it needs? I know my question is quite general so direction to any good articles on the topic are as appreciated as much as suggestions. Thanks very much in advance for your time, Dan

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• Detecting a Key Press Squashed by Another Application

  - by Eric Smith

  I have a WPF application I'm planning to use as an overlay for a DirectX game (specifically Bad Company 2). I'm using WM_KEYBOARD_LL hook to detect KeyDown events so I can bring my app to the foreground when a specific button is pressed. This works perfectly except for when the game is running (I've also noticed this problem with Window's "Chess Titans" so it may be a DirectX thing). As far as I can work out, when the game detects a keyboard press, it "eats" the event and doesn't pass the CallNextHookEx() method like it should, which would allow the key press message to be moved along to the next application in the queue. I'm wondering if there's any sort of work-around to this? It seems kind of unfair that a single application can just willy-nilly eat up messages like that. Thanks! :) Relevant MSDN documentation: http://msdn.microsoft.com/en-us/library/ms644985%28VS.85%29.aspx

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• HTML 5: Is it <br> <br/> or <br />?

  - by Eikern

  I've tried checking other answers, but I'm still confused--especially after seeing W3schools HTML 5 reference. I thought HTML 4.01 was supposed to "allow" single-tags to just be <img> and <br>. Then XHTML came along with <img /> and <br /> (where someone said that the space is there for older browsers). Now I'm wondering how I'm supposed to format my code when practicing HTML 5. <!DOCTYPE HTML> Is it <br>, <br/> or <br />?

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• Button selection in Android

  - by dreamhigh

  I have to create button options where each button performs specific task. So how to do the button selection. The code I tried is here. Button b1 b1.setOnClickListener(new Button.OnClickListener(){ public void onClick(View v) { if(v.getId()==R.id.button1) { //do something } if(v.getId()==R.id.button2) { //do something } }); For single button function its working fine with this code. Button b1= (Button)findViewById(R.id.button1); b1.setOnClickListener(new Button.OnClickListener(){ public void onClick(View v) { if(v.getId()==R.id.button1) { //do something } }});

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• bash: how to know NUM option in grep -A -B "on the fly" ?

  - by Michael Mao

  Hello everyone: I am trying to analyze my agent results from a collection of 20 txt files here. If you wonder about the background info, please go see my page, what I am doing here is just one step. Basically I would like to take only my agent's result out of the messy context, so I've got this command for a single file: cat run15.txt | grep -A 50 -E '^Agent Name: agent10479475' | grep -B 50 '^==' This means : after the regex match, continue forward by 50 lines, stop, then match a line separator starts with "==", go back by 50 lines, if possible (This would certainly clash the very first line). This approach depends on the fact that the hard-coded line number counter 50, would be just fine to get exactly one line separator. And this would not work if I do the following code: cat run*.txt | grep -A 50 -E '^Agent Name: agent10479475' | grep -B 50 '^==' The output would be a mess... My question is: how to make sure grep knows exactly when to stop going forward, and when to stop getting backward? Any suggestion or hint is much appreciated.

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• Enable mobile network

  - by Sebi

  In my application it is necessary to have internet connection. Therefore i check while starting if a Internet connection is availaible. If not I ask the user if he would establish an Internet Connection, and what type (wifi oder mobile). The wifi connection i can establish with the following code WifiManager wifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE); wifiManager.setWifiEnabled(true); But how do i establish a mobile connection? Coulnd't find a single code snippet at Google.

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• Advantage of using a static member function instead of an equivalent non-static member function?

  - by jonathanasdf

  I was wondering whether there's any advantages to using a static member function when there is a non-static equivalent. Will it result in faster execution (because of not having to care about all of the member variables), or maybe less use of memory (because of not being included in all instances)? Basically, the function I'm looking at is an utility function to rotate an integer array representing pixel colours an arbitrary number of degrees around an arbitrary centre point. It is placed in my abstract Bullet base class, since only the bullets will be using it and I didn't want the overhead of calling it in some utility class. It's a bit too long and used in every single derived bullet class, making it probably not a good idea to inline. How would you suggest I define this function? As a static member function of Bullet, of a non-static member function of Bullet, or maybe not as a member of Bullet but defined outside of the class in Bullet.h? What are the advantages and disadvantages of each?

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• Sorting manually generated index using perl script

  - by Pradeep Singh

  \item Bernoulli measure, 14 \item cellular automata \subitem Soft, 3, 28 \subitem balance theorem, 23, 45 \item tiles \subitem tiling problem, 19, 58 \subitem aperiodic tile set, 18, 45 \item Garden-of-Eden -theorem, 12 \item Bernoulli measure, 15, 16, 35 \item cellular automata \subitem balance theorem, 9, 11, 14 \subitem blocking word, 22, 32 \item Garden-of-Eden -theorem, 32 I have to sort the above index alphabetically using a perl script. Duplicate item or subitem entries should be merged and their numbers should be sorted. The subitems also should be sorted under respective item and their numbers should be also sorted. If same item is repeated in more than one place with subitems all the subitems should be merged under a single item and also subitems should be sorted

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• Rails STI: SuperClass Model Methods called from SubClass

  - by Karl

  I would like a little confirmation that I'm doing this correctly. Using rails single table inheritance I have the following models and class method: class PhoneNumber < ActiveRecord::Base def self.qual?(number) klass = self klass.exists?(:phone_number => phone_number) end end class Bubba < PhoneNumber end class Rufus < PhoneNumber end Bubba.qual?("8005551212") Tests pass and everything seems to work properly in rails console. Just wanted to confirm that I'm not headed for future trouble by using self in the superclass PhoneNumber and using that to execute class methods on subclasses from the parent. Is there a better way?

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• How to check whether Application is Busy or not

  - by Chandan Shetty SP

  Hi, I am using "networkActivityIndicatorVisible" in UIApplication for showing network spinning gear in status bar if my WebView( I am setting "networkActivityIndicatorVisible = YES" in "webViewDidStartLoad" and reseting in "webViewDidFinishLoad" ) is busy. It works fine for single UIWebView. For Multiple UIWebViews i have used a "stack" to trace which webview is busy and which one is idle and it is working fine. My question is there is any way to know whether an application is busy or idle in application level(in UIApplication) instead of checking each webview so i can remove stack. Thanks.

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• how to word wrap a QTreeWidgetItem

  - by japs

  hello all, i have to populate a QTreeWidget with items (or children of items) that may happen to be too long to fit in a single line, so i'm looking for a way to word wrap them. i thought myQTreeWidget.setWordWrap(True) (done via QtDesigner4) would have done the job, but that doesn't seem to be the case. i don't konw if it is relevant, but the tree is enveloped in a splitter frame, so the wrapping should be somehow dynamic to allow resizing of the splitter. Any ideas? I use PyQt4, but hints in any language/binding would be much appreciated. have a good day all.

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