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  • Forcing entry of certain character types in UITextField

    - by cannyboy
    If I have a UITextField which the user is inputing a registration number, which has the format: 11-11-1111 (that is 2 digits, a dash, 2 digits, a dash, four digits) How do I force the user to enter this kind of data only... so they can't enter anything except 0-9 in the first character, and only '-' for the third character etc.

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  • Regex: Match any character (including whitespace) except a comma

    - by selecsosi
    I would like to match any character and any whitespace except comma with regex. Only matching any character except comma gives me: [^,]* but I also want to match any whitespace characters, tabs, space, newline, etc. anywhere in the string. For example, I would like to be able to match all of this up until the comma: "bla bla bla" "asdfasdfasdfasdfasdfasdf" "asdfasdfasdf", Is there a simple way to do this without knowing where the whitespace may be?

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  • Can we write an EOF character ourselves?

    - by Apoorv
    Most of the languages like C++ when writing into a file, put an EOF character even if we miss to write statements like : filestream.close However is there any way, we can put the EOF character according to our requirement, in C++, for an instance. Or any other method we may use apart from using the functions provided in C++. If you need to ask more of information then kindly do give a comment. Thanks in advance.

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  • C character from string shortcut

    - by Jay
    In javascript I am used to just being able to pick any character from a string like "exm[2]" and it would return to me the third character in a string. In C is there a way to do that or something without a function that requires a buffer?

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  • Integer to Character conversion in C

    - by nthrgeek
    Lets us consider this snippet: int s; scanf("%c",&s); Here I have used int, and not char, for variable s, now for using s for character conversion safely I have to make it char again because when scanf reads a character it only overwrites one byte of the variable it is assigning it to, and not all four that int has. For conversion I could use s = (char)s; as the next line, but is it possible to implement the same by subtracting something from s ?

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  • NUL symbol gets inserted anywhere in the XML

    - by Racs
    I am using Oracle 11g and when I query data from database manually, it looks ok. But when I view it using Notepad++, there is a special character that gets inserted anywhere in the xml produced. Please see image below: I tried everything and deleted some parts of the xml, updated the db and query again but the invalid character just differ in location. Any idea is much appreciated, thanks! Best regards, Racs

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  • Replacing ’ character in PHP

    - by richard
    Hello, I'm having a hard time trying to replace this weird right single quote character. I'm using str_replace like this: str_replace("’", '\u1234', $string); It looks like I cannot figure out what character the quote really is. Even when I copy paste it directly from PHPMyAdmin it still doesn't work. Do I have to escape it somehow?

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  • Event Viewer shows service name as a truncated 8 character name

    - by Retrocoder
    I have written a service which logs to the Windows Event Log when it has any problems. This works fine and the service name is shown correctly in the Source column of the Event Viewer. The problem I am seeing is when my service hits some major problems like the networking layer has died etc. When this happens the event log shows errors about my service but the service name is shown as a truncated 8 character name. This name looks to be that of the executable and not the service name. Is this normal behaviour for a truncated name to be show ?

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  • 255 Character limit on VLOOKUP

    - by zod
    Using excel 2003, the formula: =VLOOKUP(D1 ,A1:B135, 2) fails if the length of D1 exceeds 255 characters (i.e. the list has some text longer then 255 characters, D1 has the same text value, and VLOOKUP returns #VALUE!). MATCH seems to suffer from the same character limit. I cannot find any official confirmation of these limits, for example here: http://office.microsoft.com/en-us/excel-help/vlookup-HP005209335.aspx or here: http://office.microsoft.com/en-us/excel-help/excel-specifications-and-limits-HP005199291.aspx?CTT=3 I know that excel has a 255 limit on the length of text used in formulae, but it suggests connate should work (it does not in this case, and I am not using strings in the formula, but referencing another cell). Can somebody confirm that these limit exist (it is always possible I am doing something else wrong)? More importantly, does anyone know of a way around them? Thanks

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  • how to mod rewrite unicode byte sequence for the multibyte hyphen character

    - by ChickenFur
    We have case where some adobe pdf files format the hyphen character as %E2%80%90. See http://forums.adobe.com/message/2807241 this is caused by the Calibri font I guess. So these pdf files have been released and the links don't work So I thought mod rewrite would come to the rescue. I followed this post here mod_ReWrite to remove part of a URL but I can't seem to search for the % characters according to this question. Is there anything else I can do? Here is the rewrite rule I want to use: RewriteRule ^foo%(.+)bar /foo-bar [L,R=301] I also tried this and it doesn't work RewriteRule ^foo%E2%80%90bar /foo-bar [L,R=301] Any Ideas?

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  • Mails bounce because of invalid character ('@') in username

    - by user1598585
    I have a working exim setup with virtual users, working alright, except for when I try to send email to certain servers. These servers reject my emails because of #5.1.3 Invalid character ('@') in username. The offending header parts seem to be: Return-path: <"[email protected]"@smtp.example.com> and ...(envelope-from <"[email protected]"@smtp.example.com>)... The problem is that I cannot find where and why the usernames are being generated like this. My router for submission is: dnslookup: driver = dnslookup domains = ! +local_domains transport = remote_smtp ignore_target_hosts = 0.0.0.0 : 127.0.0.0/8 no_more And the respective transport: remote_smtp: driver = smtp What can be producing this problem?

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  • Displaying unicode character U+2661 ("White Heart Suit") in Windows 7

    - by Jordan
    I can't get this character: ? to display properly in Windows Explorer, it instead shows up as a symbol of three lines, similar to this ?. The strangest thing is that if i use the heart symbol beside another unusual symbol, such as one of these: ??????, it will display correctly as a heart; yet if I delete the symbol which is next to the heart it will revert to the 3 lines symbol. All of these other symbols display correctly when used alone. Does anybody else have this problem? Is it possible that Windows has 2 different characters listed for U+2661? Thanks for any help

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  • Mysterious @ character in the Windows Registry

    - by Karel
    When I navigate to "HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WMP.PlayCD\Shell\Play" in The Windows Registry, I find one REG_EXPAND_SE named MUIVerb on my Windows 7 system. However in its contents it's carrying "@%windir%\system32\wmploc.dll,-6503" Now my question is: What does this @ character mean or do? I am an MS-DOS grown up and I haven't seen such a notation before. Should I interprete it as the @ like in an e-mail address? What is the final result. Does it become "C:\%windir%\system32\wmploc.dll,-6503" eventually ?

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  • AWS RDS Mysql with benstalk Hibernate app: Character encoding issue

    - by TeraTon
    I'm running a webapp from amazon rds with tomcat 7 and spring, which uses hibernate as the persistence layer. The application and utf-8 encoding work properly on localhost, but for some reason when I deploy to amazon, the UTF-8 encoding breaks. I use mysql 5.5.27 on amazon rds and the table that we wish to update has collation set to utf8 - utf8_unicode_ci And in hibernate I have set: < prop key="hibernate.connection.charSet"UTF-8 UTF-8 characters get replaced by ??? and this is of course especially bad for passwords and usernames + email as it basically kills them. Anyone else encountered character encoding breaking when deploying to amazon?

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  • How to print new line character with echo?

    - by Summer_More_More_Tea
    I dump a string with hexdump like this 2031 3334 2e30 0a32 2032 3331 302e 000a. It is clear that 0x0a is new line character, however, when I try to echo this string out, I always got 1 430.2 2 13.0 -- the new line is replaced with a space, even I use the -e flag. What may be the problem? Does the tailing \0 ruin the output? Is there any alternatives to print 0x0a a new line? Thanks and Best regards.

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  • Rails escape_javascript creates invalid JSON by escaping single quotes

    - by Arrel
    The escape_javascript method in ActionView escapes the apostrophe ' as backslash apostrophe \', which gives errors when parsing as JSON. For example, the message "I'm here" is valid JSON when printed as: {"message": "I'm here"} But, <%= escape_javascript("I'm here") %> outputs "I\'m here", resulting in invalid JSON: {"message": "I\'m here"} Is there a patch to fix this, or an alternate way to escape strings when printing to JSON?

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  • Backslashes in gsub (escaping and backreferencing)

    - by polygenelubricants
    Consider the following snippet: puts 'hello'.gsub(/.+/, '\0 \\0 \\\0 \\\\0') This prints (as seen on ideone.com): hello hello \0 \0 This was very surprising, because I'd expect to see something like this instead: hello \0 \hello \\0 My argument is that \ is an escape character, so you write \\ to get a literal backslash, thus \\0 is a literal backslash \ followed by 0, etc. Obviously this is not how gsub is interpreting it, so can someone explain what's going on? And what do I have to do to get the replacement I want above?

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  • c# xml string special characters

    - by sam
    Please help explain why the dataset cannot read the encoded xml? string xml = "<?xml version=\"1.0\" standalone=\"yes\" ?> <DataSet><node>it's my \"node\" & i like it</node></DataSet>"; string encodedXml = System.Security.SecurityElement.Escape(xml); DataSet ds = new DataSet(); ds.ReadXml(New XmlTextReader(new StringReader(encodedXml))); I have checked the link http://weblogs.sqlteam.com/mladenp/archive/2008/10/21/Different-ways-how-to-escape-an-XML-string-in-C.aspx What i want to do is to read a string with special characters into a dataset. But the code cannot locate the special characters in the string, c# added all the \ so the linenumber is not accurate generated by XmlException object. Anyone could provide the code to read a string with special characters into a dataset. thanks very much

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  • How can I save shell output to a variable in LaTeX?

    - by Frank
    I need to be able to execute a shell command through LaTeX [*] and have the resulting output available for use later on in the form of a LaTeX 'variable' (e.g., via a subsequent \newcommand command). If necessary a temporary file could be used to hold the output, although I would like to avoid this. I have been able to use \immediate\write18 to invoke a bash command before, but this was only used to write to a temporary file. [*] I realise that the -shell-escape flag must be set for this to be allowed

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  • ash scripting: space-containing variable refuses to be grepped

    - by Luci Sandor
    I am trying to run the script listed at http://talk.maemo.org/showthread.php?t=70866&page=2 on its intended hardware, a Nokia Linux phone running BusyBox ash. The script receives the name of WiFi network as a parameter, and tries to connect the phone to it. I suspect the script works, but my SSID, BU (802.1x), has space and parentheses in it. So when I type at the command prompt autoconnect.sh BU\ \(802.1x\) I get various errors. First, LIST=`iwconfig wlan0 | awk -F":" '/ESSID/{print $2}'` if [ $LIST = "\"$1\"" ]; then ...fails, even I am connected to the network. The error is not avoided by using single or double quotes instead of escaping characters at the command prompt. Second, if [ -z `iwlist wlan0 scan | grep -m 1 -o \"$1\"` ]; then echo SSID \"$1\" not found; shows that grep does not find the string, although the same grep, typed directly into the command prompt, does find 'BU (802.1x)'. How do I quote $1 in the two circumstances above so that it will work with my network SSID, containing spaces and parentheses? Thank you.

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