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  • beginner's ruby question: how to use erb to output file after binding

    - by john
    Hi, I got the following example: require 'erb' names = [] names.push( { 'first' => "Jack", 'last' => "Herrington" } ) names.push( { 'first' => "LoriLi", 'last' => "Herrington" } ) names.push( { 'first' => "Megan", 'last' => "Herrington" } ) myname = "John Smith" File.open( ARGV[0] ) { |fh| erb = ERB.new( fh.read ) print erb.result( binding ) accompanied by text.txt <% name = "Jack" %> Hello <%= name %> <% names.each { |name| %> Hello <%= name[ 'first' ] %> <%= name[ 'last' ] %> <% } %> hi, my name is <%= myname %> } it prints nicely to screen. what is the simplest way to output another file: "text2.txt"? thank you!!!

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  • Javascript: Pass array as optional method args

    - by Dave Paroulek
    console.log takes a string and replaces tokens with values, for example: console.log("My name is %s, and I like %", 'Dave', 'Javascript') would print: My name is Dave, and I like Javascript I'd like to wrap this inside a method like so: function log(msg, values) { if(config.log == true){ console.log(msg, values); } } The 'values' arg might be a single value or several optional args. How can I accomplish this? If I call it like so: log("My name is %s, and I like %s", "Dave", "Javascript"); I get this (it doesn't recognize "Javascript" as a 3rd argument): My name is Dave, and I like %s If I call this: log("My name is %s, and I like %s", ["Dave", "Javascript"]); then it treats the second arg as an array (it doesn't expand to multiple args). What trick am I missing to get it to expand the optional args?

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  • Can anyone give me a sample DSP script in C/C++

    - by Andrew
    Im working on a (Audio) DSP project and just wondering if there are any sample (Open source) DSP example that are written in c or c++, for my MSP430 Chip. I just want something as a guideline so i can program my own script using the ACD and DCA on my board for sampling. http://focus.ti.com/docs/toolsw/folders/print/msp-exp430f5438.html Thats my board, MSP430F5438 Experimenter Board, from what i herd it can run dsp script via the USB connection with the computer. Im using CCS ( From TI, code composer studio) and Octave/Matlab. Just any DSP example scripts or sites that will help me create my own would be appreciated. What im tying to do, Partial audio (sampled) track -- Nyquist rate sampling -- over- and undersampling -- reconstruction of the audio track.

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  • How to deserialize null array to null in c#?

    - by Aen Sidhe
    Here is my class: public class Command { [XmlArray(IsNullable = true)] public List<Parameter> To { get; set; } } When I serialize an object of this class: var s = new XmlSerializer(typeof(Command)); s.Serialize(Console.Out, new Command()); it prints as expected (xml header and default MS namespaces are omitted): <Command><To xsi:nil="true" /></Command> When I took this xml and tried to deserialize it I got stucked, because it always print "Not null": var t = s.Deserialize(...); if (t.To == null) Console.WriteLine("Null"); else Console.WriteLine("Not null"); How to force deserializer to make my list null, if it is null in xml?

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  • Variable font height via tables in LaTeX

    - by Hooked
    I've been looking for a more elegant solution to the following typesetting problem. Consider those banners found in print media where the text is aligned like: B I G T E X T small text small text small text m o r e m e d i u m t e x t The font sizes are adjusted so that the height is scaled down for longer lines of text such that each line has equal width. I've written a small script that runs each line separately, compiles, crops the resulting pdf and then \includegraphics each in a table. This gives the desired effect but requires an both an outside script and pdfcrop (which only crops to a white bounding box). Since much of LaTeX is self-aware, I imagine it would be possible to have it recognize the width of a box and scale it appropriately so that any text fits exactly into the desired width. Any thoughts or ideas on how a pure LaTeX implementation might work?

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  • How to hide Div tag without page refresh

    - by Priyanka
    Hello.I have a page where i add,edit and delete menus.For add and edit I have a separate page.When i add or edit menus,i come on the main page where i display the menus,so i print messages as "menu added" or "menu edited".But when i delete the menu,my page does not get refreshed,because i have written the delete code on the same page sing ajax function as follows:$.ajax( { type: "POST", url: "delete_menu.php", data: data, cache: false, success: function() { parent.fadeOut('slow', function() {$(this).remove();}); document.getElementById('showDiv').style.display = ''; } } The page does not get refreshed,so the div containing messages like "menus added or edited" does not get hide.I have given id to Div as showDiv. So can anyone help me to solve this problem.Also when i delete,can anyone tell me how do i display message as "menu deleted" in ajax without page refresh.Thanks in advance.

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  • DrawString with character wrapping

    - by Roy
    Hi all, I'm creating a fatal error dialog for a Windows Mobile Application using C#. The problem is when I try to draw the stacktrace using DrawString, half of my stacktrace is getting clipped off because DrawString uses word wrapping instead of character wrapping. For those who don't understand the explanation: When i draw the stacktrace, it comes out as this: at company.application.name.space.Funct at company.application.name.Function(St at etc. etc. And i want it to print like this: at company.application.name.space.Funct ion(String sometext, Int32 somenumbe r) at company.application.name.Function(St ring sometext, Int32 somenumber, Int 32 anothernumber) at etc. etc. Is this possible in Csharp?

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  • Problem with eastern european characters when scraping data from the European Parliaments Website

    - by Thomas Jensen
    Dear Experts I am trying to scrape a lot of data from the European Parliament website for a research project. Ther first step is the create a list if all parliamentarians, however due to the many Eastern European names and the accents they use i get a lot of missing entries. Here is an example of what is giving me troubles (notice the accents at the end of the family name): ANDRIKIENE, Laima Liucija Group of the European People's Party (Christian Democrats) So far I have been using PyParser and the following code: parser_names name = Word(alphanums + alphas8bit) begin, end = map(Suppress, "<") names = begin + ZeroOrMore(name) + "," + ZeroOrMore(name) + end for name in names.searchString(page): print(name) However this does not catch the name from the html above. Any advice in how to proceed? Best, Thomas

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  • Parsing names with pyparsing

    - by johnthexiii
    I have a file of names and ages, john 25 bob 30 john bob 35 Here is what I have so far from pyparsing import * data = ''' john 25 bob 30 john bob 35 ''' name = Word(alphas + Optional(' ') + alphas) rowData = Group(name + Suppress(White(" ")) + Word(nums)) table = ZeroOrMore(rowData) print table.parseString(data) the output I am expecting is [['john', 25], ['bob', 30], ['john bob', 35]] Here is the stacktrace Traceback (most recent call last): File "C:\Users\mccauley\Desktop\client.py", line 11, in <module> eventType = Word(alphas + Optional(' ') + alphas) File "C:\Python27\lib\site-packages\pyparsing.py", line 1657, in __init__ self.name = _ustr(self) File "C:\Python27\lib\site-packages\pyparsing.py", line 122, in _ustr return str(obj) File "C:\Python27\lib\site-packages\pyparsing.py", line 1743, in __str__ self.strRepr = "W:(%s)" % charsAsStr(self.initCharsOrig) File "C:\Python27\lib\site-packages\pyparsing.py", line 1735, in charsAsStr if len(s)>4: TypeError: object of type 'And' has no len()

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  • How to get lng lat value from query results of geoalchemy2

    - by user2213606
    For exammple, class Lake(Base): __tablename__ = 'lake' id = Column(Integer, primary_key=True) name = Column(String) geom = Column(Geometry('POLYGON')) point = Column(Geometry('Point')) lake = Lake(name='Orta', geom='POLYGON((3 0,6 0,6 3,3 3,3 0))', point="POINT(2 9)") query = session.query(Lake).filter(Lake.geom.ST_Contains('POINT(4 1)')) for lake in query: print lake.point it returned <WKBElement at 0x2720ed0; '010100000000000000000000400000000000002240'> I also tried to do lake.point.ST_X() but it didn't give the expected latitude neither What is the correct way to transform the value from WKBElement to readable and useful format, say (lng, lat)? Thanks

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  • valueOf() vs. toString() in Javascript

    - by brainjam
    In Javascript every object has a valueOf() and toString() method. I would have thought that the toString() method got invoked whenever a string conversion is called for, but apparently it is trumped by valueOf(). For example, the code var x = {toString: function() {return "foo"; }, valueOf: function() {return 42; }}; window.console.log ("x="+x); window.console.log ("x="+x.toString()); will print x=42 x=foo This strikes me as backwards .. if x were a complex number, for example, I would want valueOf() to give me its magnitude (so that zero would become special), but whenever I wanted to convert to a string I would want something like "a+bi". And I wouldn't want to have to call toString() explicitly in contexts that implied a string. Is this just the way it is?

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  • Why does HTTP::Message::decodable complain about "Can't use an undefined value as a HASH reference"?

    - by scarba05
    I'm getting a Can't use an undefined value as a HASH reference error trying to call HTTP::Message::decodable() using Perl 5.10 / libwww installed on Debian Lenny OS using the aptitude package manager. I'm really stuck so would appreciate some help please. Here's the error: Can't use an undefined value as a HASH reference at (eval 2) line 1. at test.pl line 4 main::__ANON__('Can\'t use an undefined value as a HASH reference at enter code here`(eval 2)...') called at (eval 2) line 1 HTTP::Message::__ANON__() called at test.pl line 6 Here's the code: use strict; use HTTP::Request::Common; use Carp; $SIG{ __DIE__ } = sub { Carp::confess( @_ ) }; print HTTP::Message::decodable();

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  • Finding the order of method calls in Eclipse

    - by Chathuranga Chandrasekara
    Suppose I have a big program that consists of hundreds of methods in it. And according to the nature of input the program flow is getting changed. Think I want to make a change to the original flow. And it is big hassle to find call hierarchy/ references and understand the flow. Do I have any solution for this within Eclipse? Or a plugin? As an example, I just need a Log of method names that is in order of time. Then I don't need to worry about the methods that are not relevant with my "given input" Update : Using debug mode in eclipse or adding print messages are not feasible. The program is sooooo big. :)

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  • Neo4j Performing shortest path calculations on stored data

    - by paddydub
    I would like to store the following graph data in the database, graph.makeEdge( "s", "c", "cost", (double) 7 ); graph.makeEdge( "c", "e", "cost", (double) 7 ); graph.makeEdge( "s", "a", "cost", (double) 2 ); graph.makeEdge( "a", "b", "cost", (double) 7 ); graph.makeEdge( "b", "e", "cost", (double) 2 ); Then run the Dijskra algorighm from a web servlet, to find shortest path calculations using the stored graph data. Then I will print the path to a html file from the servlet. Dijkstra<Double> dijkstra = getDijkstra( graph, 0.0, "s", "e" );

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  • How do I get secure AuthSub session tokens in PHP ?

    - by robertdd
    I am using the Google/YouTube APIs to develop web application which needs access to a users YouTube account. Normal unsecure requests work fine and I can upgrade one time tokens to session tokens without any hassle. The problem comes when I try and upgrade a secure token to a session token, I get: ERROR - Token upgrade for CIzF3546351vmq_P____834654G failed : Token upgrade failed. Reason: Invalid AuthSub header. Error 401 i use this: function updateAuthSubToken($singleUseToken) { try { $client = new Zend_Gdata_HttpClient(); $client->setAuthSubPrivateKeyFile('/home/www/key.pem', null, true); $sessionToken = Zend_Gdata_AuthSub::AuthSubRevokeToken($sessionToken, $client); $client->setAuthSubToken($sessionToken); } catch (Zend_Gdata_App_Exception $e) { print 'ERROR - Token upgrade for ' . $singleUseToken . ' failed : ' . $e->getMessage(); return; } $_SESSION['sessionToken'] = $sessionToken; generateUrlInformation(); header('Location: ' . $_SESSION['homeUrl']); }

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  • Are there any online database schema drawing tools?

    - by Pure.Krome
    Hi folks, i wish to draw up some database schemas. Eg, table 1 has zero to many rows in table 2, etc. It's purely for visual purposes (eg. no sql code, etc). Are there any online tools / website that offer this? (please don't say: Use Sql Server Database Diagrams, print screen, upload to image hosting service). thanks :) EDIT: Please take note of the keyword - ONLINE. I don't want any desktop solutions (because I already have one of these).

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  • Calling Python from Java through scripting engine (jython)?

    - by griffin
    I'm trying to call Jython from a Java 6 application using javax.script: import javax.script.ScriptEngine; import javax.script.ScriptEngineManager; import javax.script.ScriptException; public class jythonEx { public static void main (String args[]) throws ScriptException { ScriptEngineManager mgr = new ScriptEngineManager(); ScriptEngine pyEngine = mgr.getEngineByName("python"); try { pyEngine.eval("print \"Python - Hello, world!\""); } catch (Exception ex) { ex.printStackTrace(); } } } This is causing a NullPointerException: java.lang.NullPointerException at jythonEx.main(jythonEx.java:12) Does anyone have any idea what I'm doing wrong here? Edit: Thanks for the responses! I added jython.jar to the classpath and it runs properly: java -cp "./;jython.jar" jythonEx

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  • How to check if datetime is older than 20 seconds.

    - by Jelle
    Hello! This is my first time here so I hope I post this question at the right place. :) I need to build flood control for my script but I'm not good at all this datetime to time conversions with UTC and stuff. I hope you can help me out. I'm using the Google App Engine with Python. I've got a datetimeproperty at the DataStore database which should be checked if it's older than 20 seconds, then proceed. Could anybody help me out? So in semi-psuedo: q = db.GqlQuery("SELECT * FROM Kudo WHERE fromuser = :1", user) lastplus = q.get() if lastplus.date is older than 20 seconds: print"Go!"

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  • Sniffing LPT Traffic

    - by ArcherT
    I need to intercept LPT output traffic. After a couple of hours of research, I've come to understand that the only way to do this is by writing a kernel-mode driver, more precisely a "filter driver"...? I've downloaded the WDK, but the terminology and vast number of driver types is a little overwhelming. I'm basically trying to understand what kind of driver I should be writing; my target environment is Windows XP SP2 and 3 only. Some background info, if it matters: I have a bunch of legacy DOS apps that print to LPT1. I'd like to be able to capture this output and redirect this data (after GDI calls) to a modern USB (network) printer. Fortunately, the latter part of the problem's easy. I'm hoping someone could point me in the right direction. TIA.

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  • java xml pretty printing - preserve empty elements and white pace

    - by javamonkey79
    Basically, I am looking for a java library that will take this: <foo><bar> </bar><baz>yadda</baz></foo> And pretty print it to this: <?xml version="1.0" encoding="UTF-8"?> <foo> <bar> </bar> <baz>yadda</baz> </foo> e.g. preserving whitespace AND blank elements The closest I have got was with dom4j like so: OutputFormat format = OutputFormat.createPrettyPrint(); format.setTrimText( false ); However, this does not honor the whitespace unless the element contains other character data. I'm not opposed to writing something on my own, but I would think this has already been done, why reinvent the wheel?

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  • How can I concatenate corresponding lines in two files in Perl?

    - by Nano HE
    file1.txt hello tom well file2.txt world jerry done How to merge file1.txt with file2.txt; then create a new file - file3.txt hello world tom jerry well done thank you for reading and reply. Attached the completed code. #!/usr/bin/perl use strict; use warnings; open(F1,"<","1.txt") or die "Cannot open file1:$!\n"; open(F2,"<","2.txt") or die "Cannot open file2:$!\n"; open (MYFILE, '>>3.txt'); while(<F1>){ chomp; chomp(my $f2=<F2>); print MYFILE $_ . $f2 ."\n"; }

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  • Uibutton events

    - by Raju
    //My Button code --------------------------------------------------------------------------------------------------- UIButton *ticketButtonObj=[[ticketButton alloc]initWithFrame:CGRectMake(0.0f, 115.0f, 500.0f, 40.0f) ; int col=10; [ticketButtonObj addTarget:self action:@selector(ShowNumber:) forControlEvents:UIControlEventTouchUpInside]; [self.window addSubview:ticketButtonObj]; -(void) ShowNumber:(id)sender{ // here i want to get the Value of Col } in the above code when i pressed the button.. i want print the value of col variable in ShowNumber method .. how it is ? pls Help me ... thanks and regards... by raju

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  • Are keys and values of %INC platform-dependent or not?

    - by codeholic
    I'd like to get the full filename of an included module. Consider this code: package MyTest; my $path = join '/', split /::/, __PACKAGE__; $path .= ".pm"; print "$INC{$path}\n"; 1; $ perl -Ipath/to/module -MMyTest -e0 path/to/module/MyTest.pm Will it work on all platforms? perlvar The hash %INC contains entries for each filename included via the do, require, or useoperators. The key is the filename you specified (with module names converted to pathnames), and the value is the location of the file found. Are these keys platform-dependent or not? Should I use File::Spec or what? At least ActivePerl on win32 uses / instead of \. Update: What about %INC values? Are they platform-dependent?

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  • Setting slime-enable-evaluate-in-emacs

    - by Tyler
    Hi, I am using SBCL with slime, and have the following code: (swank::eval-in-emacs '(with-current-buffer (slime-repl-buffer) (insert (propertize "foo" 'font-lock-face '(:foreground "red"))))) (print "here is some text") In general if I try to execute anything with swank:: prefixed to it emacs will give a security error, and this particular one tells me I need to set slime-enable-evaluate-in-emacs to true. Where is this value? I haven't been able to find a slime or swank config. & settings file. Thanks much.

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  • Getting readline to block on a FIFO

    - by Dan
    I create a fifo: mkfifo tofetch I run this python code: fetchlistfile = file("tofetch", "r") while 1: nextfetch = fetchlistfile.readline() print nextfetch It stalls on readline, as I would hope. I run: echo "test" > tofetch And my program doesn't stall anymore. It reads the line, and then continues looping forever. Why won't it stall again when there's no new data? I also tried looking on "not fetchlistfile.closed", I wouldn't mind reopening it after every write, but Python thinks the fifo is still open.

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