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  • Why are these strings escaping from my regular expression in python?

    - by dohkoxar
    In my code, I load up an entire folder into a list and then try to get rid of every file in the list except the .mp3 files. import os import re path = '/home/user/mp3/' dirList = os.listdir(path) dirList.sort() i = 0 for names in dirList: match = re.search(r'\.mp3', names) if match: i = i+1 else: dirList.remove(names) print dirList print i After I run the file, the code does get rid of some files in the list but keeps these two especifically: ['00. Various Artists - Indie Rock Playlist October 2008.m3u', '00. Various Artists - Indie Rock Playlist October 2008.pls'] I can't understand what's going on, why are those two specifically escaping my search.

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  • Is it possible to start an activity from a regular java class?

    - by Yotam
    In my ActionBarSherlock I have the same menu items for all activities, so it seems unwise to define onClick handlers in each activity - they all do the same. Instead I created a class called MyClickListener that implements com.actionbarsherlock.view.MenuItem.OnMenuItemClickListener, and in there I have a simple switch block that starts the appropriate activity. Problem is that Intent constructor's first argument is of type Context, and even when I pass this to MyClickListener's constructor, I can't start any activity. The same goes for every method that has a Context object as a parameter. Is there a way to work around it? What is a context object? Thanks

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  • How do I insert format str and don't remove the matched regular expression in input string in boost:

    - by Yadollah
    I want to put space between punctuations and other words in a sentence. But boost::regex_replace() replaces the punctuation with space, and I want to keep a punctuation in the sentence! for example in this code the output should be "Hello . hi , " regex e1("[.,]"); std::basic_string<char> str = "Hello.hi,"; std::basic_string<char> fmt = " "; cout<<regex_replace(str, e1, fmt)<<endl; Can you help me?

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  • Construction an logical expression which will count bits in a byte.

    - by danatel
    When interviewing new candidates, we usually ask them to write a piece of C code to count the number of bits with value 1 in a given byte variable (e.g. the byte 3 has two 1-bits). I know all the common answers, such as right shifting eight times, or indexing constant table of 256 precomputed results. But, is there a smarter way without using the precomputed table? What is the shortest combination of byte operations (AND, OR, XOR, +, -, binary negation, left and right shift) which computes the number of bites?

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  • Can you view XAML as "regular" .net code (c#\vb.net)?

    - by cody
    There are times when I find some example XAML that I want\need to do in code (c#\vb.net). I assume at some point the XAML becomes code, or at least IL. So my questions: Am I correct in assuming that XAML is converted to IL? (or if not IL what does it become?) If the above is correct, when does XAML become IL (or whatever it becomes)? Is there some way to see the XAML in as "code" Thanks.

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  • Find all possible starting positions of a regular expression match in perl, including overlapping matches?

    - by jonderry
    Is there a way to find all possible start positions for a regex match in perl? For example, if your regex was "aa" and the text was "aaaa", it would return 0, 1, and 2, instead of, say 0 and 2. Obviously, you could just do something like return the first match, and then delete all characters up to and including that starting character, and perform another search, but I'm hoping for something more efficient.

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  • How do I change text color on the selected row inside a ListView/GridView? (using Expression Dark th

    - by Thiado de Arruda
    I'm using theExpression Dark WPF Theme(http://wpfthemes.codeplex.com/) with a ListView(view property set to a GridView) to display some user data like the following : <ListView Grid.Row="1" ItemsSource="{Binding RegisteredUsers}" SelectedItem="{Binding SelectedUser}" > <ListView.View> <GridView> <GridViewColumn Header="Login" DisplayMemberBinding="{Binding Login}" Width="60"/> <GridViewColumn Header="Full Name" DisplayMemberBinding="{Binding FullName}" Width="180"/> <GridViewColumn Header="Last logon" DisplayMemberBinding="{Binding LastLogon}" Width="120"/> <GridViewColumn Header="Photo" Width="50"> <GridViewColumn.CellTemplate> <DataTemplate> <Image Source="{Binding Photo}" Width="30" Height="35"/> </DataTemplate> </GridViewColumn.CellTemplate> </GridViewColumn> </GridView> </ListView.View> </ListView> The rows have white text with a dark background and white background when selected, however the text color doesnt change when selected and it makes very difficult to read, I would like the text to have a dark color when the row is selected. I have searched for a way to style the text color but with no success, here is the control template for the ListViewItem : <Border SnapsToDevicePixels="true" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" CornerRadius="2" x:Name="border"> <Grid Margin="2,0,2,0"> <Rectangle x:Name="Background" IsHitTestVisible="False" Opacity="0.25" Fill="{StaticResource NormalBrush}" RadiusX="1" RadiusY="1"/> <Rectangle x:Name="HoverRectangle" IsHitTestVisible="False" Opacity="0" Fill="{StaticResource NormalBrush}" RadiusX="1" RadiusY="1"/> <Rectangle x:Name="SelectedRectangle" IsHitTestVisible="False" Opacity="0" Fill="{StaticResource SelectedBackgroundBrush}" RadiusX="1" RadiusY="1"/> <GridViewRowPresenter SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" Margin="0,2,0,2" VerticalAlignment="Stretch" /> </Grid> </Border> The trigger that changes the background color simply applies an animation to change the 'SelectedRectangle' opacity, but I cant change the text color on the same trigger(I tried using a setter for the foreground color on the ListViewItem, but with no success). Does someone have a clue on that?

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  • Whats the difference between \z and \Z in a regular expression and when and how do I use it?

    - by Mister M. Bean
    From http://java.sun.com/j2se/1.5.0/docs/api/java/util/regex/Pattern.html: \Z The end of the input but for the final terminator, if any \z The end of the input But what does it mean in practice? Can you give me an example when I use either the \Z or \z. In my test I thought that "StackOverflow\n".matches("StackOverflow\\z") will return true and "StackOverflow\n".matches("StackOverflow\\Z") returns false. But actually both return false. Where is the mistake?

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  • Regular expression to match non-negative integers in PHP?

    - by kavoir.com
    I seem to get it to work with the following regexp by preg_match(): @^(?:[1-9][0-9]*)|0$@ Yet it's weird that it matches '-0', considering there are no '-' allowed at all in the regexp. Why? What's more weird is that if you switch the parts divided by |: @^0|(?:[1-9][0-9]*)$@ It matches all negative integers such as '-2' and '-10', etc. What am I missing here? Any better regexp for non-negative integer?

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  • How to Get the F# Name of a Module, Function, etc. From Quoted Expression Match

    - by Stephen Swensen
    I continue to work on a printer for F# quoted expressions, it doesn't have to be perfect, but I'd like to see what is possible. The active patterns in Microsoft.FSharp.Quotations.Patterns and Microsoft.FSharp.Quotations.DerivedPatterns used for decomposing quoted expressions will typically provide MemberInfo instances when appropriate, these can be used to obtain the name of a property, function, etc. and their "declaring" type, such as a module or static class. The problem is, I only know how to obtain the CompiledName from these instances but I'd like the F# name. For example, > <@ List.mapi (fun i j -> i+j) [1;2;3] @> |> (function Call(_,mi,_) -> mi.DeclaringType.Name, mi.Name);; val it : string * string = ("ListModule", "MapIndexed") How can this match be rewritten to return ("List", "mapi")? Is it possible?

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  • Annoyed by the expression "Moving Forward". Why do people use it? [closed]

    - by craig
    What does “Moving Forward” mean to you? “Moving Forward”: A.To acknowledge the past but in essence, encourage a positive, professional environment to do our personal best in relation to issue that was criticized. B.To acknowledge the past and learn from case examples to develop continually updated and open sources of information. Specifically, policies and procedures or best practices. C.To dismiss the past to put behind fears of retribution. D.Combination of above choices E._____< Open Answer

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  • why can't I call methods on a for-yield expression?

    - by 1984isnotamanual
    Say I have some scala code like this: // outputs 1, 4, 9, 16, 25, 36, 49, 64, 81, 100 println( squares ) def squares = { val s = for ( count <- 1 to 10 ) yield { count * count } s.mkString(", "); } Why do I have to use the temporary val s? I tried this: def squares = for ( count <- 1 to 10 ) yield { count * count }.mkString(", ") That fails to compile with this error message: error: value mkString is not a member of Int def squares = for ( count <- 1 to 10 ) yield { count * count }.mkString(", ") Shouldn't mkString be called on the collection returned by the for loop?

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  • What is a better way to write this regular expression?

    - by rxgx
    I am converting XML children into the element parameters and have a dirty regex script I used in Textmate. I know that dot (.) doesn't search for newlines, so this is how I got it to resolve. Search language="(.*)" (.*)<education>(.*)(\n)?(.*)?(\n)?(.*)?(\n)?(.*)?</education> (.*)<years>(.*)</years> (.*)<grade>(.*)</grade> Replace grade="$13" language="$1" years="$11"> <education>$3$4$5$6$7$8$9</education> I know there's a better way to do this. Please help me build my regex skills further.

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  • How can I match everything in a string until the second occurrence of a delimiter with a regular expression?

    - by Steve
    I am trying to refine a preg_match_all by finding the second occurrence of a period then a space: <?php $str = "East Winds 20 knots. Gusts to 25 knots. Waters a moderate chop. Slight chance of showers."; preg_match_all ('/(^)((.|\n)+?)(\.\s{2})/',$str, $matches); $dataarray=$matches[2]; foreach ($dataarray as $value) { echo $value; } ?> But it does not work: the {2} occurrence is incorrect. I have to use preg_match_all because I am scraping dynamic HTML. I want to capture this from the string: East Winds 20 knots. Gusts to 25 knots.

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  • I want to create an expression for querystrings, this stuff is hard!

    - by jkirkerx
    I want to extract some keywords out of a query string for a search application in asp.net. I decoded the url string first, so it's plain text I have this to start with, but I want to add a keyword group I'd like to trim off the stuff for pure words, but not sure if that's possible I also have a long list of possible query string value fields that I want to check against ?q= @q= ?qs= &qs=

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  • Is it possible to exclude some elements from parsing when using regular expression and .replace()?

    - by Fletus Mefitis
    <script language="javascript"> $("div.post-content , .parsedsig").each(function(){ if($(this).html().indexOf("[/tabulaScriptum]") != -1) { pattern = /\[tabulaScriptum=(.*?)\]([^\[]*)\[\/tabulaScriptum\]/gi $(this).html($(this).html().replace(pattern, "<div class='tabulaScriptum'><div class='tabulaNomen'>$1</div><div class='tabulaImpleo'>$2</div></div>")) } }); </script> This script is working perfectly, except for one thing... I need not to replace [tabulaScriptum=][/tabulaScriptum] in certain elements. For example, I don't want to replace those "tags" in element that has class .code-box. Is it possible? Clarification: element .code-box is located within .post-content. Clarification #2: this script creates simple division spoiler. .tabulaScriptum is spoier's body, .tabulaNomen is spoiler's name and button which, in turn, reveals(or hides) .tabulaImpleo on click. Reveal\hide script is located in some other place, and I didn't post it here since it doesn't really matter. Clarification #3: http://jsfiddle.net/PRtsw/1/ fiddle.

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  • How do I pass a conditional expression as a parameter in Ruby?

    - by srayhan
    For example this what I am trying to do, def method_a(condition, params={}, &block) if condition method_b(params, &block) else yield end end and I am trying to call the method like this, method_a(#{@date > Date.today}, {:param1 => 'value1', :param2 => 'value2'}) do end The result is the condition is always evaluated to true. How do I make it work?

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  • Using AttachConsole, user must hit enter to get regular command line.

    - by Clangon
    I have a progaram that can be ran both as a winform, or from command line. If it is invoked from a command line I call AttachConsole(-1) to attach to parent console. However, after my program ends, the user must hit enter to get back the standard command prompt ("c:\"). is there a way to avoid that need? Thanks. I could wrap it in a cmd file to avoid that issue, but I would like to do it from my exe.

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