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  • How to validate hostname in perl?

    - by embedded
    Hi, I need to come up with a regular expression to validate hostname against RFC-1123 and RFC-952. Right now I'm using this: ^(?=.{1,255}$)[0-9A-Za-z](?:(?:[0-9A-Za-z]|\b-){0,61}[0-9A-Za-z])?(?:\.[0-9A-Za-z](?:(?:[0-9A-Za-z]|\b-){0,61}[0-9A-Za-z])?)*\.?$/ but this does not do the trick since it does not catch a. as invalid hostname. How do I enhance the reg expression to comply with those RFCs? Thanks

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  • How can I make this Perl regex work?

    - by Geo
    I have this line ( it's a single line, SO makes it seem like 2 ): /Od /D "WIN32" /D "_DEBUG" /FD /EHa /MDd /Fo"Debug" /Fd"Debug\vc80.pdb" /W3 /c /Zi /clr /TP .\main.cpp" And I want to extract the .\main.cpp. I thought the following would do the trick: if($string =~ /.*\s+(.*)$/i) { print "matched ",$1,"\n"; } because this same regex works in Ruby, and extracts the string I required. How can I get it working?

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  • awk - Remove line if field is duplicate

    - by Kyle
    Looking for an awk (or sed) one-liner to remove lines from the output if the first field matches. An example for removing duplicate lines I've seen is: awk 'a !~ $0; {a=$0}' Tried using it for a basis with no luck (I thought changing the $0's to $1's would do the trick, but didn't seem to work).

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  • How Can I Programmatically Build a Multi-Page TIFF out of Many Single Page TIFFs, Using Python?

    - by MetaHyperBolic
    I've found, via Google, numerous people asking the same question, but no solutions. The Python Image Library (PIL) has tools for stepping through an already existing multi-page TIFF, but nothing about creating them. Libraries would hopefully be available on Windows, for Python 2.6. If there's some freeware out there which will do the trick, I wouldn't mind seeing it, but I was hoping I could accomplish this in Python.

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  • How do they do that? Transparent foreground on a web page

    - by Jim Beam
    You know how sometimes you are on a good site and you click a button (like to submit a form) and the form doesn't go away, instead, the foreground becomes transparent and it contains a message of some kind, or another page. The message is at the forefront but the previous page is still mostly visible behind it - how do they do that? I'm assuming it's an Ajax-esque trick.

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  • How can I use "FOR UPDATE" with a JOIN on Oracle?

    - by tangens
    The answer to another SO question was to use this SQL query: SELECT o.Id, o.attrib1, o.attrib2 FROM table1 o JOIN ( SELECT DISTINCT Id FROM table1, table2, table3 WHERE ... ) T1 ON o.id = T1.Id Now I wonder how I can use this statement together with the keyword FOR UPDATE. If I simply append it to the query, Oracle will tell me: ORA-02014: cannot select FOR UPDATE from view Do I have to modify the query or is there a trick to do this with Oracle? With MySql the statement works fine.

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  • How to close a java swing application from the code

    - by hstoerr
    What is the proper way to terminate a Swing application from the code, and what are the pitfalls? I'd tried to close my application automatically after a timer fires. But just calling dispose() on the JFrame didn't do the trick - the window vanished but the application did not terminate. However when closing the window with the close button, the application does terminate. What should I do?

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  • how to select posts by particular author? (wordpress)

    - by Radek
    I have a page with template No Sidebars I want to list 5 posts' titles on that page by author where the author's name = page's title any idea how to do so without using any plugin? I thought that query_posts function would do the trick but this important note kind of tells me that I cannot use query_posts

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  • getting numbers from lines of text

    - by Flethuseo
    Hi everyone, I want to parse a text file, where I get numbers that are between parenthesis like this: 1 2 3 (4 - 7) 8 9 1 3 8 (7 - 8) 2 1 1 2 (8 - 10) 3 2 should return an array for each: array1: 4 7 8 array2: 7 8 10 I am thinking of using split for each line, like line.split("("), but that doesn't quite doing the trick.. I was wondering if there is something more sophisticated for the job. Any help appreciated, Ted

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  • MS Access 2007 - Property for text box to allow end-user to hit enter for return, not next

    - by Justin
    So I have a form that user's use for data entry, and on one form there is a text box there that is basically used. To enter notes. However, if the user hits i need the cursor to stay in that text box, and start a new line (uh....like word would)....but currently it is jumping to the next control (text box). So is there a simple property setting that would do the trick? Or a VBA method to accomplish? Thanks Justin

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  • How to get the root path in JavaScript?

    - by Axel
    I am using mod_rewrite to remap the URLs in my website in the following format: http://www.mydomain.com/health/54856 http://www.mydomain.com/economy/strategy/911025/ http://www.mydomain.com/tags/obama/new The problem is that I am making AJAX calls to a file: http://www.mydomain.com/login.php And I don't want to write the FULL url or even use the ../ trick because there isn't a fixed level of folders. So, what i want is something to access the login.php from the root, whatever the domain name is: $.ajax({ type: "POST", url: "http://www.mydomain.com/login.php" });

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  • K-means algorithm variation with minimum measure of size

    - by user1464628
    I'm looking for some algorithm such as k-means for grouping points on a map into a fixed number of groups, by distance. The number of groups has already been decided, but the trick part (at least for me) is to meet the criteria that the sum of MOS of each group should in the certain range, say bigger than 1. Is there any way to make that happen? ID MOS X Y 1 0.47 39.27846 -76.77101 2 0.43 39.22704 -76.70272 3 1.48 39.24719 -76.68485 4 0.15 39.25172 -76.69729 5 0.09 39.24341 -76.69884

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  • Getting IBindingList Property to sort by

    - by Josh
    I've got a class called DatagridBoundList that implements CollectionBase and IBindingList. The implementation of IBindingList.ApplySort looks like this so far: void IBindingList.ApplySort(PropertyDescriptor property, ListSortDirection direction) { throw new NotSupportedException(); } I'm binding the DatagridBoundList to a DataGridView (winforms). When I reflect over the property parameter, I can't seem to find the name of the actual property that the list needs to be sorted by. What's the trick to finding out the name of the property to sort by?

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  • Where can I find good ajax support in Java/Python ?

    - by HJ-INCPP
    Hello, I want a framework (or anything) that helps me make rich client guis. I know my server-side, but I don't like programming in ajax, javascript, css etc. Something that wraps the ajax code in some objects/methods with clean syntax, would do the trick. I want to write code in java instead of defining css and html tags. Does Java Spring, JSF, Django support this ? Languages: Java, Python Thank you

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