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• how do I get the height of a rich text content after word wrap?

  - by Led

  Question A. Given 1. A string in rich text format that may have paragraph, tabs, space, line break, indentation, (or even image?) 2. A width for the word wrapping rich text control/editor How do I know the height of the content after it have performed all the word wrapping? Is there something like int MeasureRichTextHeightAfterWordWrap(string aRichTextContent, int aWidth)? Otherwise how does those rich text control know how much to autosize? Do I have to actually place the content on a dummy rich text control and get its height afterwards? Question B. Similar to question A but in plain text onto a plain text memo/control/editor. And manually draw string with manually calculated indentations, breaks, word wrappings. Is it easier or harder?

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• Symfony routing with an API Web Service

  - by fesja

  Hi, I'm finishing the API of our web service. Now I'm thinking on how to make the route changes, so if we decide to make a new version we don't break the first API. right now: url: /api/:action param: { module: api, action: :action } requirements: sf_format: (?:xml|json) what i've thought: url: /api/v1/:module/:action param: { module: api1, action: :action } requirements: sf_format: (?:xml|json) url: /api/v2/:module/:action param: { module: api2, action: :action } requirements: sf_format: (?:xml|json) That's easy, but the perfect solution would be to have the following kind of route # Automatically redirects to one module or another url: /api/v:version/:module/:action param: { module: api:version, action: :action } requirements: sf_format: (?:xml|json) any ideas on how to do it? what do you recommend us to do? thanks!

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• How to make Excel strip ALL quotes from CSV text fields

  - by Klay

  When importing a CSV file into Excel, it only strips the double-quotes from the FIRST field on the line, but leaves them on all other fields. How can I force Excel to strip the quotes from ALL strings? For instance, I have a CSV file: "text1", "text2", "numeric1", "numeric 2" "abc", "def", 123, 456 "abc", "def", 123, 456 "abc", "def", 123, 456 "abc", "def", 123, 456 I import it into Excel using Data Import External Data Import Data. I specify that the fields are delimited by commas, and that the text delimiter is the double-quote character. Both the data preview and the actual Excel spreadsheet columns only strip the double-quotes from the first text field. All other text fields still have quotes around them. What's really strange is that Access is able to import this data correctly (i.e. strips quotes from every text field. Note that this is NOT a matter of internal commas or quotes or escape characters. This happens in Excel 2003 and Excel 2007.

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• Determining full XHR request URL on a Google Chrome XHR Breakpoint

  - by DanH

  I am initiating a jQuery ajax ($.ajax) post, within the Google Chrome browser. I have setup a XHR breakpoint in the "XHR Breakpoints" section of the "Scripts" tab within the Developer Tools. The criteria of the breakpoint is "get" ie. I want the debugger to break on all XHR requests which contain the word "get" in them (somePage.asmx/getListOfAnimals) is an example. The breakpoint is being correctly hit, however I am unable to determine what the exact URL that is being requested. I realize I can remove the breakpoint and see what URL is being requested from the "Network" tab, but I want to know this at the time the breakpoint is hit. I have tried stepping through the XHR request once it has been hit in Chrome, but I must be missing a Javascript object/property which contains the fully requested URL. Google Chrome has detected that the XHR requested URL contains "get" but how do I get to this URL from within the debug session before the request is made?

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• Concurrent Generation of Sequential Keys

  - by GenTiradentes

  I'm working on a project which generates a very large number of sequential text strings, in a very tight loop. My application makes heavy use of SIMD instruction set extensions like SSE and MMX, in other parts of the program, but the key generator is plain C++. The way my key generator works is I have a keyGenerator class, which holds a single char array that stores the current key. To get the next key, there is a function called "incrementKey," which treats the string as a number, adding one to the string, carrying where necessary. Now, the problem is, the keygen is somewhat of a bottleneck. It's fast, but it would be nice if it were faster. One of the biggest problems is that when I'm generating a set of sequential keys to be processed using my SSE2 code, I have to have the entire set stored in an array, which means I have to sequentially generate and copy 12 strings into an array, one by one, like so: char* keys[12]; for(int i = 0; i < 12; i++) { keys[i] = new char[16]; strcmp(keys[i], keygen++); } So how would you efficiently generate these plaintext strings in order? I need some ideas to help move this along. Concurrency would be nice; as my code is right now, each successive key depends on the previous one, which means that the processor can't start work on the next key until the current one has been completely generated. Here is the code relevant to the key generator: KeyGenerator.h class keyGenerator { public: keyGenerator(unsigned long long location, characterSet* charset) : location(location), charset(charset) { for(int i = 0; i < 16; i++) key[i] = 0; charsetStr = charset->getCharsetStr(); integerToKey(); } ~keyGenerator() { } inline void incrementKey() { register size_t keyLength = strlen(key); for(register char* place = key; place; place++) { if(*place == charset->maxChar) { // Overflow, reset char at place *place = charset->minChar; if(!*(place+1)) { // Carry, no space, insert char *(place+1) = charset->minChar; ++keyLength; break; } else { continue; } } else { // Space available, increment char at place if(*place == charset->charSecEnd[0]) *place = charset->charSecBegin[0]; else if(*place == charset->charSecEnd[1]) *place = charset->charSecBegin[1]; (*place)++; break; } } } inline char* operator++() // Pre-increment { incrementKey(); return key; } inline char* operator++(int) // Post-increment { memcpy(postIncrementRetval, key, 16); incrementKey(); return postIncrementRetval; } void integerToKey() { register unsigned long long num = location; if(!num) { key[0] = charsetStr[0]; } else { num++; while(num) { num--; unsigned int remainder = num % charset->length; num /= charset->length; key[strlen(key)] = charsetStr[remainder]; } } } inline unsigned long long keyToInteger() { // TODO return 0; } inline char* getKey() { return key; } private: unsigned long long location; characterSet* charset; std::string charsetStr; char key[16]; // We need a place to store the key for the post increment operation. char postIncrementRetval[16]; }; CharacterSet.h struct characterSet { characterSet() { } characterSet(unsigned int len, int min, int max, int charsec0, int charsec1, int charsec2, int charsec3) { init(length, min, max, charsec0, charsec1, charsec2, charsec3); } void init(unsigned int len, int min, int max, int charsec0, int charsec1, int charsec2, int charsec3) { length = len; minChar = min; maxChar = max; charSecEnd[0] = charsec0; charSecBegin[0] = charsec1; charSecEnd[1] = charsec2; charSecBegin[1] = charsec3; } std::string getCharsetStr() { std::string retval; for(int chr = minChar; chr != maxChar; chr++) { for(int i = 0; i < 2; i++) if(chr == charSecEnd[i]) chr = charSecBegin[i]; retval += chr; } return retval; } int minChar, maxChar; // charSec = character set section int charSecEnd[2], charSecBegin[2]; unsigned int length; };

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• Using string[] as a Dictionary key e.g. Dictionary<string[], StringBuilder>

  - by Nick Allen - Tungle139

  The structure I am trying to achieve is a composite Dictionary key which is item name and item displayname and the Dictionary value being the combination of n strings So I came up with var pages = new Dictionary<string[], StringBuilder>() { { new string[] { "food-and-drink", "Food & Drink" }, new StringBuilder() }, { new string[] { "activities-and-entertainment", "Activities & Entertainment" }, new StringBuilder() } }; foreach (var obj in my collection) { switch (obj.Page) { case "Food": case "Drink": pages["KEY"].Append("obj.PageValue"); break; ... } } The part I am having trouble with is accessing the Dictionary Key pages["KEY"] How do I target the Dictionary Key whose value at [0] == some value? Hope that makes sense

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• CruiseControl Console error message when parsing XML

  - by jarad

  I have CruiseControl(1.5) running in Win2k8R2 and svn(1.6.9) The error happens on a successful build after nant(0.86) Timeout(600 seconds). When I check the build dir everything is built correctly but CruiseControl Dashboard report Exception Here is the error shown in console: [:DEBUG] Exception: System.Xml.XmlException: The ',' character, hexadecimal value 0x2C, cannot be included in a name. Line 5544, position 274. at System.Xml.XmlTextReaderImpl.Throw(Exception e) at System.Xml.XmlTextReaderImpl.ParseElement() at System.Xml.XmlTextReaderImpl.ParseDocumentContent() at System.Xml.XmlWriter.WriteNode(XmlReader reader, Boolean defattr) at ThoughtWorks.CruiseControl.Core.Util.XmlFragmentWriter.WriteNode(XmlReader reader, Boolean defattr) at ThoughtWorks.CruiseControl.Core.Util.XmlFragmentWriter.WriteNode(String xml)

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• Undocumented Mac Calls

  - by Brian Postow

  I'm working on a couple of mac products, and in order to do what I need to do, I'm using some calls to undocumented methods on Mac Classes. Like IKImageView's doRotate:(id) and PDFDocument's (NSPrintOperation *)getPrintOperationForPrintInfo:(NSPrintInfo *)printInfo autoRotate:(BOOL)doRotate; How common is it for Objective C programmers to use methods like this? How do you find out about them (other than Google)? How dangerous is it to use them? Is there a danger other than that Apple will make them no-longer available in some future rev, and so your program will break?

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• Detect the URI encoding automatically in Tomcat

  - by Roland Illig

  I have an instance of Apache Tomcat 6.x running, and I want it to interpret the character set of incoming URLs a little more intelligent than the default behavior. In particular, I want to achieve the following mapping: So%DFe => Soße So%C3%9Fe => Soße So%DF%C3%9F => (error) The bevavior I want could be described as "try to decode the byte stream as UTF-8, and if it doesn't work assume ISO-8859-1". Simply using the URIEncoding configuration doesn't work in that case. So how can I configure Tomcat to encode the request the way I want? I might have to write a Filter that takes the request (especially the query string) and re-encodes it into the parameters. Would that be the natural way?

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• How to put a newline into a column header in an xtable in R

  - by PaulHurleyuk

  I have a dataframe that I am putting into a sweave document using xtable, however one of my column names is quite long, and I would like to break it over two lines to save space calqc_table<-structure(list(RUNID = c(1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L), ANALYTEINDEX = c(1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L), ID = structure(1:11, .Label = c("Cal A", "Cal B", "Cal C", "Cal D", "Cal E", "Cal F", "Cal G", "Cal H", "Cal High", "Cal Low", "Cal Mid"), class = "factor"), mean_conc = c(200.619459644855, 158.264703128903, 102.469121407733, 50.3551544728544, 9.88296440865076, 4.41727762501703, 2.53494715706024, 1.00602831741361, 199.065054555735, 2.48063347296935, 50.1499780776199), sd_conc = c(2.3275711264554, NA, NA, NA, NA, NA, NA, 0.101636943231162, 0, 0, 0), nrow = c(3, 1, 1, 1, 1, 1, 1, 3, 2, 2, 2)), .Names = c("Identifier of the Run within the Study", "ANALYTEINDEX", "ID", "mean_conc", "sd_conc", "nrow"), row.names = c(NA, -11L ), class = "data.frame") calqc_xtable<-xtable(calqc_table) I have tried putting a newline into the name, but this didn't seem to work names(calqc_table)[1]<-"Identifier of the \nRun within the Study" Is there a way to do this ? I have seen someone suggest using the latex function from the hmisc package to manually iterate over the table and write it out in latex manually, including the newline, but this seems like a bit of a faf !

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• Regex question: Why isn't this matching?

  - by AllenG

  I have the following regex: (?<=\.\d+?)0+(?=\D|$) I'm running it against a string which contains the following: SVC~NU^0270~313.3~329.18~~10~~6.00: When it runs, it matches the 6.00 (correctly) which my logic then trims by one zero to turn into 6.0. The regex then runs again (or should) but fails to pick up the 6.0. I'm by no means an expert on Regex, but my understanding of my expression is that it's looking for a decimal with 1 or more optional (so, really zero or more) digits prior to one or more zeros which are then followed by any non-digit character or the line break. Assuming that interpretation is correct, I can't see why it wouldn't match on the second pass. For that matter, I'm not sure why my Regex.Replace isn't matching the full 6.00 on the first pass and removing both of the trailing zeros... Any suggestions?

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• Javascript function call causes error

  - by Ankur

  I am trying to call a function "makeQuery" and it's not working, FireBug is telling me: missing ; before statement [Break on this error] makeQuery(this.id){\n I don't quite understand where it wants me to put the ";" $(".predicate").click(function () { makeQuery(this.id){ alert(this.id); } }); function makeQuery(value){ queryString = queryString+"val="+value+"&"; variables = variables+1; alert(queryString); alert(variables); }

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• Which is the correct shorthand - "regex" or "regexp".

  - by Vilx-

  Most of us computer programmers are pretty obsessed about correct terminology. I certainly am, especially because sometimes changing just one character in a word can drastically change its meaning. So... what is the correct shorthand for "regular expression"? Is it "regex" or "regexp"? On the internet I see both uses, although "regex" seems to be more popular, and the tag list here on SO also includes just "regex". But plenty of people also use "regexp" in their questions.

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• WCF Deserialization Error

  - by BK

  ERROR - Exception: System.ServiceModel.Dispatcher.NetDispatcherFaultException Message: The formatter threw an exception while trying to deserialize the message: There was an error while trying to deserialize parameter services.gmrlive.com/JupiterMobile/2009/01/01/:StatusDetails. The InnerException message was 'There was an error deserializing the object of type X.X.X.Entities.StatusDetailCollection. Name cannot begin with the '5' character, hexadecimal value 0x35. Line 12, position 45.'. I am tracing the wcf logs but i am unable to see the actual xml message. It fails to log the malformed message. Can anyone help?

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• Database Error : Compiling app on iphone device

  - by Amarpreet

  Hi guys I am getting a problem when i compile my iphone database application to device. When i debug the code it says database path "out of scope" on the break point and it does not compile the statement. Below is the code i am using to access the database. databaseName = @"Zen.sqlite"; NSArray *documentPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask,YES); NSString *documentsDir=[documentPaths objectAtIndex:0]; databasePath=[documentsDir stringByAppendingPathComponent:databaseName]; It works perfectly fine when i use the same code on simulator. Please help me to get this work on iphone device as well. Thanks.

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• Can django's auth_user.username be varchar(75)? How could that be done?

  - by perrierism

  Is there anything wrong with running alter table on auth_user to make username be varchar(75) so it can fit an email? What does that break if anything? If you were to change auth_user.username to be varchar(75) where would you need to modify django? Is it simply a matter of changing 30 to 75 in the source code?: username = models.CharField(_('username'), max_length=30, unique=True, help_text=_("Required. 30 characters or fewer. Letters, numbers and @/./+/-/_ characters")) Or is there other validation on this field that would have to be changed or any other repercussions to doing so? See comment discussion with bartek below regarding the reason for doing it.

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• Attach data to Richtext using flex, mysql and php(newbie)

  - by dmschenk

  I'm trying to attach data to a richtext field in Flashbuilder. The data is an html string in a mysql database and I'm connecting using php. The php script is just converting to XML. The connection works because I can easily dump the data to a datagrid and I can see the string. when I try to hook the data to a Richtext field I get "object CallResponder" so I am connected, but I'm not sure how to break it down so that it is just an html string for the text field. Thanks protected function creationCompleteHandler(event:FlexEvent):void { getAllAbout_fxResult.token = aboutfxService.getAllAbout_fx(); } <s:RichText x="10" y="10" text="{getAllAbout_fxResult}" creationComplete="creationCompleteHandler(event)" width="300" height="300"/>

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• Is it naughty to have a large utility file?

  - by banister

  In my C project I have quite a large utils.c file. It is really full of many utilities of different sorts. I feel a bit naughty just stuffing different miscellaneous functions in there. For example it has some utilities related to low level stuff such as a lowercase() function, and it also has some quite sophisticated utilities such as converting to/from different colour formats. My question is, is it very naughty to have such a large utils.c with many different types of utilities in it? Should I break it up into many different kinds of utility files? Such as graphics_utils.c and so on What do you think?

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• how to prevent white spaces in a regular expression regex validation

  - by Rees

  i am completely new to regular expressions and am trying to create a regular expression in flex for a validation. using a regular expression, i am going to validate that the user input does NOT contain any white-space and consists of only characters and digits... starting with digit. so far i have: expression="[A-Za-z][A-Za-z0-9]*" this correctly checks for user input to start with a character followed by a possible digit, but this does not check if there is white space...(in my tests if user input has a space this input will pass through validation - this is not desired) can someone tell me how i can modify this expression to ensure that user input with whitespace is flagged as invalid?

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• Hidden features of CSS

  - by alex

  I have definitely picked up some useful tips in the hidden features style questions concerning PHP and XHTML. So here is one to cover CSS. While easy to pick up, it takes a little while to learn about everything, their default behaviors, properties etc Here are some to start the ball @charset "UTF-8"; /* set the character set. must be first line as Gumbo points out in comments */ .element { /* takes precedence over other stylings */ display: block !important; /* mozilla .... rounded corners with no images */ -moz-border-radius: 10px; /* webkit equivalent */ -webkit-border-radius: 10px } These are not so much hidden, but their use is not often widespread. What tips, tricks, rare features have you discovered with CSS?

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• Generic Text Only printer driver mangles control codes

  - by Terry

  If an escape character (or most other characters < 0x20) is sent to the generic / text only printer it gets printed as a period. Using the code in the WinDDK is it possible to 'correct' this behaviour so that it passes it through unmodified? The general scenario for this is that some application ('user app') outputs a document to a windows printer. My application requires this data in plain text form and so what I do is run a generic / text only printer that talks to a virtual com port. This generally works fine except where the 'user app' outputs binary data to the print queue without using the correct mechanism (which seems to work fine on some printer drivers, such as the Epson POS ones, but not the generic / text only one). I've tried changing the print processor selection without success and also tried looking at the gtt files to see if I could readily map in these characters as though they were printable, but the minidriver tool won't let me do that. Any suggestions?

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• Free Online tools for testing mysql queries - having features like PhPMyAdmin

  - by Sandeepan Nath

  Can anybody tell me any "free online hosted database servers" (don't know if that is the correct term) where we can do query testing and all those things that we can do on tools like PhpMyAdmin? does something like that exist? Like we have http://jsfiddle.net/ for testing js codes. I checked http://sqlzoo.net/ but this is very much limited and there are some predefined tables in some given examples on which we can alter things. That's all. It does not allow me to do a lots of other things like creating tables etc. A nice resource - PhpMyAdmin's demo site . Use the latest stable version here. You have full control over the MySQL server, however you should not change root, debian-sys-maint or pma user password or limit their permissions. If you do so, demo can not be accessed until privileges are restored, so you just break things for you and other users.

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• Issue with footer in IE8

  - by Blaze

  i have an issue with my footer in IE8 only. The footer itself detaches from the rest of the page almost as if there was a line break. I used this condition statement to fix it but i got nothing <!--[if !IE 8]> <style type="text/css" media="screen"> #BTM {margin-top: -10px;} <![endif]--> How do i target IE8 only? any suggestions?

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• Neither Invalidate() nor Refresh() invokes OnPaint()

  - by user181813

  I'm trying to get from Line #1 to Line #2 in the below code: using System; using System.Windows.Forms; namespace MyNameSpace { internal class MyTextBox : System.Windows.Forms.TextBox { protected override void OnEnabledChanged(EventArgs e) { base.OnEnabledChanged(e); Invalidate(); // Line #1 - can get here Refresh(); } protected override void OnPaint(PaintEventArgs e) { base.OnPaint(e); System.Diagnostics.Debugger.Break(); // Line #2 - can't get here } } } However, it seems that neiter Invalidate() nor Refresh() causes OnPaint(PaintEventArgs e) to be invoked. Two questions: Why doesn't it work? If it can't be fixed: I only want to invoke OnPaint(PaintEventArgs e) in order to access the e.Graphics object - is there any other way to do this?

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• Django syncdb not making tables for my app

  - by Rosarch

  It used to work, and now it doesn't. python manage.py syncdb no longer makes tables for my app. From settings.py: INSTALLED_APPS = ( 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.sites', 'mysite.myapp', 'django.contrib.admin', ) What could I be doing wrong? The break appeared to coincide with editing this model in models.py, but that could be total coincidence. I commented out the lines I changed, and it still doesn't work. class MyUser(models.Model): user = models.ForeignKey(User, unique=True) takingReqSets = models.ManyToManyField(RequirementSet, blank=True) takingTerms = models.ManyToManyField(Term, blank=True) takingCourses = models.ManyToManyField(Course, through=TakingCourse, blank=True) school = models.ForeignKey(School) # minCreditsPerTerm = models.IntegerField(blank=True) # maxCreditsPerTerm = models.IntegerField(blank=True) # optimalCreditsPerTerm = models.IntegerField(blank=True) UPDATE: When I run python manage.py loadddata initial_data, it gives an error: DeserializationError: Invalid model identifier: myapp.SomeModel Loading this data had worked fine before. This error is thrown on the very first data object in the data file.

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