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• what architecture for implementing a richtext editor?

  - by genesys

  Hi! Can someone give me some hints on how a clean implementation (designwise) of a richtext editor could look like that allows for things like setting fonts, setting character colors and so on? And when and how are characters rendered? are characters rendered only once and the bitmap representation is cached? Is there any article or book covering what software design would be appropriate for that? background is that we're working on a text editing software for a language that cannot be displayed with unicode any hint is appreciated! thanks!

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• PHP - Processing Invalid XML

  - by Paul

  I'm using SimpleXML to load in some xml files (which I didn't write/provide and can't really change the format of). Occasionally (eg one or two files out of every 50 or so) they don't escape any special characters (mostly &, but sometimes other random invalid things too). This creates and issue because SimpleXML with php just fails, and I don't really know of any good way to handle parsing invalid XML. My first idea was to preprocess the XML as a string and put ALL fields in as CDATA so it would work, but for some ungodly reason the XML I need to process puts all of its data in the attribute fields. Thus I can't use the CDATA idea. An example of the XML being: <Author v="By Someone & Someone" /> Whats the best way to process this to replace all the invalid characters from the XML before I load it in with SimpleXML?

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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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• gsm character encoding.

  - by Ashwin

  in php how can i convert normal text + accented characters in utf8 to gsm format for sending via sms.

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• SQL Server version of MySQL's group_concat and escaped strings

  - by TheObserver

  I only have the Express versions of MS SQL Server 2008 and Visual Studio. Given that I can't create a SQL Server project and therefore CLR solutions are out of the question, I've attempted to use select col1, stuff( ( select ' ' + col2 from StrConcat t1 where t2.col1 = t1.col1 for xml path('') ),1,1,'') from StrConcat t2 group by col1 order by col1 to get a row concatenated col2. col2 is a varchar field with some control characters like & and \n. When it is concatenated with the above SQL, it appears to escape those control characters ie. & becomes & amp ; and \n becomes &#xOD, which is not what I want it to do. So, the question is, what black box magic is causing that to happen?

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• Live Character Count For EditText Android

  - by Taylor Perkins

  Hello, I was wondering what the best way to do a live character count of an edit-text box is in Android. I was looking at this but I couldn't seem to make any sense of it. To describe the problem, I have an EditText and I'm trying to limit the characters to 150. I can do this with an input filter, however I want to show right below the text box the number of characters a user has entered(Almost like stack overflow is doing right now). If someone could write a small snippet of example code or point me in the right direction I'd appreciate it a lot. Thanks in advance.

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• c++ vector.push_back error: request for member 'push_back'..., which is of non-class type 'vector(ch

  - by Ziplin

  I'm using Cygwin with GCC, and ultimately I want to read in a file of characters into a vector of characters, and using this code #include <fstream> #include <vector> #include <stdlib.h> using namespace std; int main (int argc, char *argv[] ) { vector<char> string1(); string1.push_back('a'); return 0; } generates this compile time error: main.cpp: In function int main(int, char**)': main.cpp:46: error: request for memberpush_back' in string1', which is of non -class typestd::vector ()()' I tried this with a vector of ints and strings as well and they had the same problem.

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• Pentium Assembly Code Question

  - by leon

  Hi I am new to Pentium assembly programming. Could you check if I am doing the translation of C to assembly correctly? Condition: 32-bit addresses, 32 bit integers and 16 bit characters. char[5] vowels="aeiou"; Translate: vowels db "aeoiu" ; or should it be "vowels dw "aeoiu" ? How to access vowels[p]? Is it byte[vowels+p*2]? (since characters are 16 bit? ) Many thanks

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• Trying to find a match in two strings - Python

  - by Jacob Mammoliti

  I have a user inputting two strings and then I want to check if there are any similar characters and if there is, get the position where the first similarity occurs, without using the find or index function. Below is what I have so far but I doesn't fully work. With what I have so far, I'm able to find the similarities but Im not sure how to find the position of those similarities without using the index function. string_a = "python" string_b = "honbe" same = [] a_len = len(string_a) b_len = len(string_b) for a in string_a: for b in string_b: if a == b: same.append(b) print (same) Right now the output is: ['h', 'o', 'n'] So basically what I am asking is, how can I find the position of those characters without using the Python Index function?

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• Flash CS5 font is largest part of the SWF

  - by dev.e.loper

  I'm transferring a project from CS4 to CS5 and (without any changes) my SWF file gets to be 10 times bigger. It was 7kb and now it's 77kb. I generated a size report and it looks like the font is taking up most of the space. I haven't changed settings. I'm not sure why font is taking up so much space. Is there a way around this? Here is my size report: Font Name Bytes Characters ----------------- ---------- ---------- _sans 12 MilkyWell 317 .blsu Calibri-Bold Bold 75960 %.0123456789 As you can see Calibri-Bold is taking up 75kb and I only have 12 characters in it.

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• problems with UTF-8 encoding in PHP

  - by user296516

  Hi guys, The characters I am getting from the URL, for example www.mydomain.com/?name=john , were fine, as longs as they were not in Russian. If they were are in Russian, I was getting '????'. So I added $name= iconv("cp1251","utf-8" ,$name); and now it works fine for Russian and English characters, but screws up other languages. :))) For example 'Janis' ( Latvian ) that worked fine before iconv, now turns into 'j??nis'. Any idea if there's some universal encoder that would work with both the Cyrillic languages and not screw up other languages?

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• putenv/setenv using substitutions

  - by vinaym

  I need user to define all the environment variables needed for my program in a text file as shown below. MyDLLPath = C:\MyDLLPath MyOption = Option1 PATH = %MyDLLPath%;%PATH%; In my program I read each line and call putenv with the string. Problem is that the environment substitutions (%MyDLLPath%) are not being expanded. I am guessing the following fix for that 1. Check each line for % characters. 2. Get the text between 2 consecutive % characters. 3. Call getenv using the text from step 2. 4. Replace value obtained above into the line and then call putenv. Is there a better way to do it?

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• putenv/setenv using substitutions

  - by vinaym

  I need user to define all the environment variables needed for my program in a text file as shown below. MyDLLPath = C:\MyDLLPath MyOption = Option1 PATH = %MyDLLPath%;%PATH%; In my program I read each line and call putenv with the string. Problem is that the environment substitutions (%MyDLLPath%) are not being expanded. I am guessing the following fix for that - Check each line for % characters.- Get the text between 2 consecutive % characters.- Call getenv using the text- Replace value obtained above into the line and then call putenv. Is there a better way to do it?

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• Changing Emacs Forward-Word Behaviour

  - by gvkv

  As the title says, how does one change the behaviour of emacs forward-word function? For example, suppose [] is the cursor. Then: my $abs_target_path[]= abs_path($target); <M-f> my $abs_target_path = abs[_]path($target); I know I could just use M-f M-b but as far as I'm concerned, that shouldn't be necessary and I'd like to change it. In particular, I want two things: When I press M-f, I want to go to the first character of the next word regardless of whether the point is within a word, within a group of spaces or somewhere else. Customize word-characters on a mode-by-mode basis. After all, moving around in CPerl mode is different than, say, TeX mode. So, in the above example, item 1 would have the cursor would move to the 'a' (and the point to it's left) after hitting M-f. Item 2 would allow me to define underscores and sigils as word characters.

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• XML Output is Truncated in SQL

  - by Muhammad Akhtar

  Hi, I need to return my result set in XML and this works fine, but if the number of records are increased, my xml output is truncated here is my query select t.id,t.name,t.address from test FOR XML AUTO, ROOT('Response'), ELEMENTS However I have set some option to increase the output result set like.. Tools --> Options --> Query Results --> SQL Server --> Results to Text --> Maximum number of characters displayed in each column Tools --> Options --> Results --> Maximum characters per column but still I am unable to get my desired result. please suggest my solution Thanks....

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• Pattern Matching in Scheme

  - by kunjaan

  How do I accept the following input? (list of 0 or more charcters and ends with 3) or (list of 1 or more characters 4 and 0 or more characters after 4) something like (match ( list 3)) -> #t (match ( list 1 2 3)) -> #t (match (list 1 2 3 4)) -> #t (match (list 1 2 3 4 5)) -> #t (match (list 4)) -> #f EDIT: THIS IS NOT MY HOMEWORK. I trying to write something like ELIZA from PAIP but I know only how to write a pattern that begins with a word.

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• Make NSFormatter validate NSTextFieldCell continuously

  - by harms

  In Cocoa, I have an NSOutlineView where the cells are NSTextFieldCell. The cell displays values which are strings that are formatted according to certain rules (such as floats or pairs of floats with a space in between). I have made a custom NSFormatter to validate the text, and this seems to work with no problem. However, the cell (or the outline view, I'm unsure what is causing this) only seems to use the formatter at the moment my editing would end. If I type some alphabetic characters into the text field (which violates the formatting rules), these characters show up -- the only way I notice the formatter doing its job is that I'm now prevented from moving keyboard focus away from this cell. If I return the contents of the cell to a valid form, then I can move focus away. I have set both the cell and the outline view to be "continuous". It would be better if I was unable to enter text into the cell in the first place. Is it possible to make it like that, and if so, how?

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• PHPMailer safe practices - Send escaped / sanitized variables or not ?

  - by FreekOne

  I'm using the PHPMailer-Lite class to build an email sending script and I'm not sure if I should use addslashses() on the $name variable when adding it to the constructor. If somebody's last name would be O'Riley (or any other name that contains characters which should normally be sanitized before handling) and I would send it unescaped, wouldn't it mess with the script/email sending ? Is it safe to send it unescaped ? As a side note, I would also like to avoid having my message body say "Hello, O\'Riley". Looking at the source, I saw that it only trims the whitespace and line ending (\r\n) characters from the received $name variable, so any advice on this would be more than welcome. Thank you all in advance !

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• Invert regexp in vim

  - by Chris J

  There's a few "how do I invert a regexp" questions here on stackoverflow, but I can't find one for vim (if it does exist, by goggle-fu is lacking today). In essence I want to match all non-printable characters and delete them. I could write a short script, or drop to a shell and use tr or something similar to delete, but a vim solution would be dandy :-) Vim has the atom \p to match printable characters, however trying to do this :s/[^\p]//g to match the inverse failed and just left me with every 'p' in the file. I've seen the (?!xxx) sequence in other questions, and vim seems to not recognise this sequence. I've not found seen an atom for non-printable chars. In the interim, I'm going to drop to external tools, but if anyone's got any trick up their sleeve to do this, it'd be welcome :-) Ta!

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• DataAnnotation attributes buddy class strangeness - ASP.NET MVC

  - by JK

  Given this POCO class that was automatically generated by an EntityFramework T4 template (has not and can not be manually edited in any way): public partial class Customer { [Required] [StringLength(20, ErrorMessage = "Customer Number - Please enter no more than 20 characters.")] [DisplayName("Customer Number")] public virtual string CustomerNumber { get;set; } [Required] [StringLength(10, ErrorMessage = "ACNumber - Please enter no more than 10 characters.")] [DisplayName("ACNumber")] public virtual string ACNumber{ get;set; } } Note that "ACNumber" is a badly named database field, so the autogenerator is unable to generate the correct display name and error message which should be "Account Number". So we manually create this buddy class to add custom attributes that could not be automatically generated: [MetadataType(typeof(CustomerAnnotations))] public partial class Customer { } public class CustomerAnnotations { [NumberCode] // This line does not work public virtual string CustomerNumber { get;set; } [StringLength(10, ErrorMessage = "Account Number - Please enter no more than 10 characters.")] [DisplayName("Account Number")] public virtual string ACNumber { get;set; } } Where [NumberCode] is a simple regex based attribute that allows only digits and hyphens: [AttributeUsage(AttributeTargets.Property)] public class NumberCodeAttribute: RegularExpressionAttribute { private const string REGX = @"^[0-9-]+$"; public NumberCodeAttribute() : base(REGX) { } } NOW, when I load the page, the DisplayName attribute works correctly - it shows the display name from the buddy class not the generated class. The StringLength attribute does not work correctly - it shows the error message from the generated class ("ACNumber" instead of "Account Number"). BUT the [NumberCode] attribute in the buddy class does not even get applied to the AccountNumber property: foreach (ValidationAttribute attrib in prop.Attributes.OfType<ValidationAttribute>()) { // This collection correctly contains all the [Required], [StringLength] attributes // BUT does not contain the [NumberCode] attribute ApplyValidation(generator, attrib); } Why does the prop.Attributes.OfType<ValidationAttribute>() collection not contain the [NumberCode] attribute? NumberCode inherits RegularExpressionAttribute which inherits ValidationAttribute so it should be there. If I manually move the [NumberCode] attribute to the autogenerated class, then it is included in the prop.Attributes.OfType<ValidationAttribute>() collection. So what I don't understand is why this particular attribute does not work in when in the buddy class, when other attributes in the buddy class do work. And why this attribute works in the autogenerated class, but not in the buddy. Any ideas? Also why does DisplayName get overriden by the buddy, when StringLength does not?

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• Converting from ANSI to Unicode

  - by Rayne

  Hi all, I'm using Visual Studio .NET 2003, and I'm trying to convert a program written in purely ANSI characters to be independent of Unicode/Multi-byte characters. The program has a callback function of pcap_loop, called "got_packet". It's defined as void got_packet(u_char *user, const struct pcap_pkthdr *header, const u_char *cpacket) { USES_CONVERSION; _TUCHAR *packet; packet = A2T(cpacket); ... } However, I get the error message error C2440: 'type cast': cannot convert from 'const u_char *' to 'ATL::CA2WEX<>' How do fix this? Thank you. Regards, Rayne

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• Finding text's bounding rect in Core Text

  - by Mo

  I'm trying to find the boundaries of a line of text in Core Text. For simplicity, assume it has a single character. At the moment I'm using the following method: line = CTLineCreateWithAttributedString(attrString); rect = CTLineGetImageBounds(line, context); It works most of the times, but for some characters, like math italic d (Unicode: 0x1D451) or math italic q (Unicode: 0x1D45E), the width is a bit short. I tried using CTLineGetTypographicBounds() or CTFramesetterSuggestFrameSizeWithConstraints, but they didn't help either (I think they use glyph's advance to find the width, not its graphical width.) As the font itself isn't italic, I also can't use slant angle to correct this. I tried accessing the glyphs directly and using CTFontCreatePathForGlyph(), but failed as CGGlyph and UniChar are both 16-bits and I need 32-bit characters. Does anyone know if I'm doing anything wrong? If so, what's the right way?

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• to escape or not to escape: well formed XHTML with diacritics

  - by andresmh

  Say that you have a XHTML document in English but it has accented characters (e.g. meta name="author" content="José"). Let's say you have no control over the HTTP headers. Should the characters be replaced for their corresponding named entities (e.g. &aacute;, etc)? Should the doc type and the xml:lang attribute be set to English? I know I can check the W3C recommendation but I am asking more from a practical point of view.

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• pyparsing ambiguity

  - by Claudiu

  I'm trying to parse some text using PyParser. The problem is that I have names that can contain white spaces. So my input might look like this: Joe Bob Jimmy Foo Joe decides to eat. Bob decides to not eat. Jimmy Foo decides to eat. How can I create a parser for the decides to eat line? If I create my name parser naively, meaning with alphabetic characters plus space characters, then it will match the entire line.

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• C#, string replace russian to english

  - by Fabio Beoni

  Hello, I have a strange problem replacing chars in string... I read a .txt file containing russian text, and starting from a list of letters russian to english (ru=en), I loop the list and I WOULD like to replace russian characters with english characters. The problem is: I can see in the debug the right reading of the russian and the right reading of the english, but using myWord = myWord.Replace(ruChar, enChar), the string is not replaced. My txt file is a UTF-8 encoding. Any suggestions?? Thank you to all...

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