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• How can I find the first non-repeating character in a string using Perl?

  - by kivien

  Write a function that returns the first non-repeating character in a string. Example: “Thanks for visiting" returns "h".

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• How to get a variable name as a string in PHP?

  - by Gary Willoughby

  Say i have this PHP code: $FooBar = "a string"; i then need a function like this: print_var_name($FooBar); which prints: FooBar Any Ideas how to achieve this? Is this even possible in PHP?

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• python simple json problem with a unicode string url "link": "http:\/\/www.mydomain.com" ??

  - by spidee

  i have a dictionary when i pass it over simplejson.dumps(dict) the json output has put some sort of encoding on a string url? "link": "http:\/\/www.mydomain.com" How can i stop this? Im using app engine simplejson.

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• How to teach beginners reversing a string in Python?

  - by Tomaž Pisanski

  I am teaching an undergraduate course "Introduction to Computer Programming". How should I teach reversing a string in Python?

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• Remove HTML tags and comments from a string in C#?

  - by Nick Brooks

  How do I remove everything beginning in '<' and ending in '' from a string in C#. I know it can be done with regex but I'm not very good with it.

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• How to get first character of a string in SQL?

  - by Vinodtiru

  I have a SQL column with length of 6. Now want to take only first char of that column. Is the any string function in SQL to do this?

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• How to bind an List<List<String>> to the gridview ?

  - by user301089

  Hi everyone, I'm using the new Telerik Rad Control and I would to use the GridView included. But my problem is I recover with a webservice a List<List<String>> object and I would like to show it into my Datagridview. I try to make a Grid.ItemSource = e.result but nothing appears ;-( What's the problem ? Thanks a lot. Narglix

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• C#: should "" be assigned to string to make it empty?

  - by Craig Johnston

  Should "" be assigned to a string to make it empty? Or should it be a left as null?

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• Regex to match a string that does not contain any words longer than 10 characters?

  - by Mrgreen

  ^(.)+\S{10}(.)+$ I have that regex which will match any string that contains a word of 10 characters. However I need the INVERSE of that. A regex that will only match strings which do NOT have words of =10 characters.

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• How to construct a string based on regex and related parameters in PHP?

  - by user198729

  (?P<id>\d*)(/(?P<title>.*))? Most of the time,we use regex to match something,but how to generate the matching string if we have id and title already? Example,if id=4 and title='hello world',the result should be: 4/hello world But if we only have id=4,it should be: 4 Because as the regex indicates,title is optional. Two answers both misunderstood... There is no preg_match yet

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• In Python 2.x, using backticks to get decimal string from int object is Horrible?

  - by S.Mark

  In Python 2.x, using backticks to get decimal string from int object is Horrible? Because backticks are repr(), not str()? I have noticed that when I answering this question. In Python source, they have same function in Python source, intobject.c (reprfunc)int_to_decimal_string, /* tp_repr */ .... (reprfunc)int_to_decimal_string, /* tp_str */ What do you think?

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• Is std::pair<int, std::string> ordering well-defined?

  - by Adal

  It seems that I can sort an std::vector<std::pair<int, std::string>>, and it will sort based on the int value. Is this a well defined thing to do? Does std::pair have a default ordering based on it's elements?

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• How can I convert a 48 hex string to bytes using Perl?

  - by ron

  I have a hex string (length 48 chars) that I want to convert to raw bytes with the pack function in order to put it in a Win32 vector of bytes. How I can do this with Perl?

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• Delphi 6: How to search a dynamic array for sub-string quickly?

  - by Robert Oschler

  How can I search a dynamic array of char in Delphi 6 for a sub-string and get back an index to a match, not a pointer? I've seen functions in Delphi 6 that do this for strings but not for dynamic char arrays. There is a function called SearchBuf but that function returns a PChar pointer to the match location when what I need is the array index of the match. Thanks.

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• Conversion from string to type 'Double' is not valid.

  - by Adnan Badar

  Hi, I am getting the following error while running a select statement (using OleDbCommand). My query is SELECT CME FROM Personnel WHERE CME = '11349D' If objOleDbCom.ExecuteScalar() 0 Then When i execute the above statement i got this error Conversion from string "11349D" to type 'Double' is not valid. My field CME data type is Text My database is Access 2007 I tried by running my query directly inside database and it is running fine. Please suggest. Thanks.

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• How to make a macro which gives back a string into the source code?

  - by mystify

  Example: I want to do this: METHODNAME(5) { // do something } which results in: - (void)animationStep5 { // do something } Is there any way to do this? Basically, what I need is a way to generate a real source code string before the program is compiled, so the compiler does see - (void)animationStep5... Or maybe there's something different than a macro, which can help here to auto-generate method names (not at run-time)?

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• Simple 301 redirect; how do I get it to drop the query string?

  - by Throlkim

  Hopefully there's a simple solution to this. I'm setting up a redirect for old search listings, but I don't want any of the query string to carry over. The current rule is: redirect 301 /blog http://newdomain.com But this would redirect the following: http://www.olddomain.com/blog/2009/11/article-name-etc To this: http://newdomain.com/2009/11/article-name-etc When I just want: http://newdomain.com Can this be done in the simple 301 redirect, or will I have to write a mod_rewrite rule?

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• Should I create private static final String = "Some exception message" or leave it inside the code?

  - by Artic

  Should I create private static final String = "Some exception message" or leave it inside the code? Is there any performance issues? I have a lot of exception cases. Texts are mostly different in any particular case. Wary about performance and memory issues

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• how to pass string to a url and get the image from the webserver to the java SE application

  - by Nubkadiya

  how to pass string to a url in java. i want to download an image from a web server. before downloading a image i want to pass some values to that image then after that i want to download the image. can someone help me. in Java SE application

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• How to make a "nested" translation string in Django template?

  - by culebrón

  Here's a phrase I have to make translateable: Poll ends in 2 hours 23 minutes This string must have the main phrase and 'hour' and 'minute' in singular and plural forms. {% blocktrans %}Poll ends in {{ poll.expire_hours }} ??? {{ poll.expire_minutes }} ???{% endblocktrans %} What do I put then instead of ??? ?

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• A more elegant way to parse a string with ruby regular expression using variable grouping?

  - by i0n

  At the moment I have a regular expression that looks like this: ^(cat|dog|bird){1}(cat|dog|bird)?(cat|dog|bird)?$ It matches at least 1, and at most 3 instances of a long list of words and makes the matching words for each group available via the corresponding variable. Is there a way to revise this so that I can return the result for each word in the string without specifying the number of groups beforehand? ^(cat|dog|bird)+$ works but only returns the last match separately , because there is only one group.

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• How do I use a string as a keyword argument?

  - by Issac Kelly

  Specifically, I'm trying to use a string to arbitrairly filter the ORM. I've tried exec and eval solutions, but I'm running into walls. The code below doesn't work, but it's the best way I know how to explain where I'm trying to go from gblocks.models import Image f = 'image__endswith="jpg"' # Would be scripted in another area, but passed as text <user input> d = Image.objects.filter(f) #for the non-django pythonistas: d = Image.objects.filter(image__endswith="jpg") # would be the non-dynamic equivalent.

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• Is it safe to use connection.createStatement().executeQuery(String query);?

  - by javanix

  Is it safe to do connection.createStatement().executeQuery(String query);, or should each java.sql.Statement object be created and closed by "hand" on every use, even if the connection is closed in a finally block? If multiple queries are executed in one method by one connection it would use much less code if instantiating and closing each statement wasn't strictly necessary.

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• How to get and disect the query string appended into a url? PHP

  - by Stanley Ngumo

  Hi, I am trying to develop a PHP class which would enable me to get the query string appended into a url and process it according to the variables passed. How can this be done? Eg www.example.com?var1=a&var2=b&var3=c now I want to get '?var1=a&var2=b&var3=c' section and process it based on the variables. Thanks

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• How to get the connection string value from hibernate.cfg.xml file?

  - by MCardinale

  I have a method that needs to get my Connection String from the connection.connection_string property on hibernate.cfg.xml file. I've tried use NHibernate.Cfg.Environment.ConnectionString, but it didn't work. How can I get this? Thank you.

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