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• How can I display a list of characters that fail to match a regular expression?

  - by Matt

  For example, if I'm doing some form input validation and I'm using the following code for the name field. preg_match("/^[a-zA-Z .-]$/", $firstname); If someone types in Mr. (Awkward) Double-Barrelled I want to be able to display a message saying Invalid character(s): (, )

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• can any one help me using C#

  - by sama

  i have a form that has a textbox and label i want to get the time of the first character entered in the textbox then if user enter more than ten charcters then the time between the first charcter enterd and the tenth charcter entered and dispay it in tle label can any one help me please using c#

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• How Do I grep For non-ASCII Characters in UNIX

  - by Peter Conrey

  I have several very large XML files and I'm trying to find the lines that contain non-ASCII characters. I've tried the following: grep -e "[\x{00FF}-\x{FFFF}]" file.xml But this returns every line in the file, regardless of whether the line contains a character in the range specified. Do I have the syntax wrong or am I doing something else wrong? I've also tried: egrep "[\x{00FF}-\x{FFFF}]" file.xml (with both single and double quotes surrounding the pattern).

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• regex breaks on \n

  - by Sourabh

  hi segmentText = <input from textarea>; testRgx = [/( \d+\.| [^\W\d_]\.|.)+?([!?.?](?= |$)|$)/g]; arrSegments = segmentText.match(testRgx); This expression fails if segmentText has \n or other white spaces in it.I want to add \n in to the list of chars that the above pattern use [!?.?] = [!?.?\n] so that the segment is separated based on the \n character

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• Scala println in a for loop

  - by random459

  The following Scala code does just what I expect it to - it prints each line of some_file.txt. import scala.io.Source val lines = Source.fromPath("some_file.txt").mkString for (line <- lines) print(line) If I use println instead of print, I expect to see some_file.txt printed out with double-spacing. Instead, the program prints a newline after every character of some_file.txt. Could someone explain this to me? I'm using Scala 2.8.0 Beta 1.

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• "Tab" disappear when adding new ListViewItem to ListView

  - by user340169

  Hi i am trying to add string to Listview the string contain Tab (or \t) character. when i do this the Tab disappear. code: string text = "test Tab";// The space between the words is "Tab" of course this.listView1.Items.Add(new ListViewItem(text)); why is this happens?

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• error in strcmp() function in c

  - by mekasperasky

  suppose i have a character array d[20] which has d[0]=i and d[1]=f ; then i assign null value d[2]='/0'; what should be the value of strcmp(d,"if") and why ? shouldnt it give me the value 0?

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• How to move the textbox caret to the right.

  - by monkey_boys

  I would like to change all the characters entered into a textbox to upper case. The code will add the character, but how do I move the caret to the right? private void textBox3_KeyPress(object sender, KeyPressEventArgs e) { textBox3.Text += e.KeyChar.ToString().ToUpper(); e.Handled = true; }

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• how not to allow muliple keystokes received at one key press?

  - by Untopronor

  when we press a key and keep pressing it the keypress and keydown event continuously fires. Is there a way to let these fire only after a complete cycle ,eg keydown and then key up. I would like the user not to be able press the key continuously rather would like the user have to press then release the key board to type a character ! so that following case do not occur eg : pppppppppppppppppppppppp when user presses 'p' for 1 sec.

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• Remove short tag in html 4 validation in aspx

  - by iPhone Fun

  hi all, I am new to HTML 4 validations, in that if I put HEAD runat="server" tag I am getting this error - Error Line 6, Column 82: character data is not allowed here …lesheet" type="text/css" media="all" / In the head tag I have called css files. So if any one know about thin can help me,how to solve this error? Thanks in advance.

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• jQuery library to autopopulate multiple fields

  - by user1134179

  I have multiple textboxes with set character limits that together make up a code. There is value in the boxes being separated for a variety of reasons. I want to be able to paste a complete code in the first textbox and have it automatically populate all the textboxes. Is there a way to do this in javascript or a jquery library for this case? Currently I'm using jQuery autotab on each textbox and I'd prefer to keep that functionality.

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• How can I enter a password using Perl and replace the characters with '*'?

  - by MatthieuF

  I have a Perl script that requires the user to enter a password. How can I echo only '*' in place of the character that the user types, as they type it? I'm using Windows XP/Vista.

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• Iphone newb Question - How to export information to a website?

  - by Rob

  I am a new iphone developer and was wondering if I could get some help with some code. I just want to know how to export basic character strings and variables to a website to be used by a third-party program. Basically, if I had something as basic as: int variableOne; int variableTwo; What code would I use to export these variables to a website?

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• How do I convert a string the looks like a hex number to an actual hex number in php?

  - by TheGNUGuy

  Hey everyone, I have a string that looks like this "7a" and I want to convert it to the hex number 7A. I have tried using pack and unpack but that is giving me the hex representation for each individual character. I'm out of ideas and don't know where to go from here. Thanks for the help!

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• Why does echo-ing "<! <" return "<! >"?

  - by mkeblx

  Here is my exact code. <?php echo "<! <"; ?> And this is the returned string. <! > Why is the last character changing?

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• Unicode filename to python subprocess.call()

  - by otrov

  I'm trying to run subprocess.call() with unicode filename, and here is simplified problem: n = u'c:\\windows\\notepad.exe ' f = u'c:\\temp\\nèw.txt' subprocess.call(n + f) which raises famous error: UnicodeEncodeError: 'ascii' codec can't encode character u'\xe8' Encoding to utf-8 produces wrong filename, and mbcs passes filename as new.txt without accent I just can't read any more on this confusing subject and spin in circle. I found here lot of answers for many different problems in past so I thought to join and ask for help myself Thanks

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• French characters in SQLite..how to display properly in iPhone app?

  - by squeezemylime

  I am working on an iPhone app using a SQLite db. I have some French characters that are not rendering properly in the app - they are being displayed as squares. The character set client is: utf8. Is there an easy fix for this?

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• Problem with VIM - "f" calling the "fold" command instead of "find"

  - by Tony

  This is happening in python files. For example, I want to do type "fC" in normal mode, and instead of finding the first "C" character, it is just doing code fold toggling.

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• Mssql varchar to datetime

  - by Dezigo

  I have a field varchar(14) = 20090226115644 I need convert it to - 2009-02-26 11:56:44 (datetime format) My idea. use cast and convert.. but I allways have errors. Conversion failed when converting datetime from character string. I made this, but don`t like it.. SELECT SUBSTRING(move,1,4) + '-' + SUBSTRING(move,5,2) + '-' + SUBSTRING(move,7,2) + ' ' + SUBSTRING(move,9,2) + ':' + SUBSTRING(move,11,2) + ':'+SUBSTRING(move,13,2) as new -- FROM [Test].[dbo].[container_events] where move IS not null Result :2009-02-26 11:56:44

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• How to retrieve unicode data stored directly in non-unicode field as varchar format in sql server

  - by Samujjal

  I have to create a C# application which displays unicode data in a textbox. But the SQL server column storage has varchar data which contains unicode data. But since varchar is non-unicode based it displays character strings like "????????". Well the problem i am facing is i cant change the column type as there are other dependent application running on it.

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• Common Lisp's equivalent of \r inside the format function?

  - by liszt

  Basically, I'd like to do the following, only using Common Lisp instead of Python: print("Hello world.\r\n") I can do this, but it only outputs the #\newline character and skips #\return: (format t "Hello world.~%") I believe I could accomplish this using an outside argument, like this: (format t "Hello world.~C~%" #\return) But is seems awkward to me. Surely I can somehow embed #\return into the very format string, like I can #\newline? Yeah ehh, I'm nitpicking. Thanks for any help!

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• postgresql insert value in table in serial value

  - by Jesse Siu

  my database using postgresql. the table pk is uing serial value.if i want to insert a record in table, do i need type pk or it will automatic contain id. Can you give me a example about how to insert a record in dataset CREATE TABLE dataset ( id serial NOT NULL, age integer NOT NULL, name character varying(32) NOT NULL, description text NOT NULL DEFAULT ''::text CONSTRAINT dataset_pkey PRIMARY KEY (id ) )

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• how to save html to a database field

  - by ooo

  i have an tiny editor web page where my users can use this editor and i am saving the html into my database. i am having issues saving this html to my database. for example if there is a name with a "'" or if there are other html character "<,","" etc, my code seems to blow up on the insert. Is there any best practices about taking any arbitrary html and have it persist fully to a db field without worrying about any specific characters.

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• validating html files with latex commands

  - by robezy

  I'm using latex commands in my html code. When I validate the at w3c validator, it is giving me inavlid markup message. Line 105, Column 31: non SGML character number 12 \begin{equation}(x^{2})^{4+(frac{1}{5})}\end{equation} Is there a way to pass validation? Can I ignore this error?

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• How to test unescaped &nbsps; as a whitespace

  - by gleery

  I use apache common lang to unescape a block of html text which contains &nbsp;, I want to filter out blocks that contains only whitespaces. But I can't test the   as a whitespace. It's not in the normal whitespace list(http://en.wikipedia.org/wiki/Whitespace_character), and I try to print its Hex form by calling Character.getNumericValue which return -1. &nbsp should be a whitespace,isn't? But How can I test it?

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