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• Repairing broken XML file - removing extra less-than/greater-than signs

  - by peku

  I have a large XML file which in the middle contains the following: <ArticleName>Article 1 <START </ArticleName> Obviously libxml and other XML libraries can't read this because the less-than sign opens a new tag which is never closed. My question is, is there anything I can do to fix issues like this automatically (preferably in Ruby)? The solution should of course work for any field which has an error like this. Someone said SAX parsing could do the trick but I'm not sure how that would work.

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• Decoding MIME (HTML+Attachments)

  - by MH

  I'm planning to write an application that should handle incoming mails. Basically it will act more like a ticketing system than a webmail, so I'm only interested in receiving emails, and not sending them. I have made a simple prototype that downloads mails and displays the text with downloadable attachments in a web page, but handling mails from Outlook and others is more complicated. I have looked at some of the open source ticketing systems out there, but most of the code is tied to the system and is hard to separate. Is there a library that understands "rich" mail and makes this job simpler? Preferably in Python, Java, Ruby or Perl. I'm also open to suggestions for any command line mail clients that can be used for this, since the system will not receive large amounts of mail and can afford to launch external processes.

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• How is does this module code work?

  - by phsr

  I'm new to ruby and I am trying to figure out how the following code works The following code is inside a class in a module. The method is called later with the following code: @something ||= Module::Class.config class << self def config &block options = OpenStruct.new yield options if block_given? init_client! Client.new(options) end def init_client!(client) base_eigenclass = class << Base; self; end base_eigenclass.send :define_method, :client do @client = client end client end end The class has some constants in it, and when the classes initialize is called, the instance member are set to option.variable || VARIABLE_CONSTANT. I understand that if there is no value for option.variable then VARIABLE_CONSTANT is used, but I don't understand that calling Module::Class.config do |options| #some block end set the @client until config is called again with options The code definitely works, but I want to understand how it does

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• Pushin each_line into array not working

  - by zettt

  Hi, I've got a weird issue with Ruby. I want to read data from a file and put the data then into an array. The weird thing is, it's working in another script which does basically, the same thing. quoteArray = [] quoteFile = File.new("quotes.txt", "r") or die "Unable to open file..." quoteFile.each_line { |line| quoteArray.push line } puts quoteArray[0] All I get out of this is an array with one element where the whole text file is in. What's wrong? Is it my machine? The text file? Any ideas? Thanks in advance

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• How to reduce latency of data sent through a REST api

  - by Sid

  I have an application which obtains data in JSON format from one of our other servers. The problem I am facing is, there is is significant delay when when requesting for this information. Since a lot of data is passed (approx 1000 records per request where each record is pretty huge) is there a way that compression would help reducing the speed. If so which compression scheme would you recommend. I read on another thread that they pattern of data also matters a lot on they type of compression that needs to be used. The pattern of data is consistent and resembles the following :desc=>some_description :url=>some_url :content=>some_content :score=>some_score :more_attributes=>more_data Can someone recommend a solution to how I could reduce this delay. They delay is approx 6-8 seconds. I'm using Ruby on Rails to develop this application and the server providing the data uses Python for the most part.

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• Netbeans Intellisense for Rails

  - by irishfury

  Has anybody figured out a way to make the Netbeans intellisense for ruby and rails better? It either has too many options in the list (which I understand is a problem since it is a dynamic language). Or it has no options in the list, as if it is not dynamic enough to find everything. Are there any hacks to make it better, or is this just something that needs to be improved within the Netbeans source code? I'm currently using 6.8. Please spare me the posts about how I don't really need to use intellisense, and I should use vim or emacs. I'm sure the vim programmers are 10 times more productive than me with all their cool shortcuts, but I have no desire to learn these tools.

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• Process incoming emails with script

  - by luckytaxi

  Remember iwantsandy.com? It was quite popular for what it did. ANyways, I'm looking to do something similar, but my question is, how does one process incoming emails? Let's assuming I'm using PHP or maybe even Ruby to do this. I would need a way to process the emails and dump them into a DB or something. Ok fine, but my main question is getting a script to kick off when an email comes in. I have a VPS so I have full control over my environment and it's running Centos.

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• How does this module code work?

  - by phsr

  I'm new to ruby and I am trying to figure out how the following code works The following code is inside a class in a module. The method is called later with the following code: @something ||= Module::Class.config class << self def config &block options = OpenStruct.new yield options if block_given? init_client! Client.new(options) end def init_client!(client) base_eigenclass = class << Base; self; end base_eigenclass.send :define_method, :client do @client = client end client end end The class has some constants in it, and when the classes initialize is called, the instance member are set to option.variable || VARIABLE_CONSTANT. I understand that if there is no value for option.variable then VARIABLE_CONSTANT is used, but I don't understand that calling Module::Class.config do |options| #some block end set the @client until config is called again with options The code definitely works, but I want to understand how it does

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• Vim's autocomplete is excruciatingly slow

  - by jnicklas

  Most of the time the autocomplete feature in VIM works nicely for me, but sometimes it seems to be scanning files which the current file references, and then it becomes painfully slow, sometimes taking several seconds to release focus back to me. Sometimes VIM tells me simply that it is "Scanning" other times, it's saying "Scanning tags" I've only this happen in Ruby files, and it happens mostly when there is a require in the file. My guess would be that this is some kind of feature which checks related files for autocomplete options, but I don't really need that, and would prefer quicker autocomplete.

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• Internet Explorer 8 doesn't finish downloading the page!

  - by Eric the Red

  I'm currently finishing up testing a new Ruby on Rails app. Just recently, some of the pages do not seem to finish downloading in IE8. In FireFox, Chrome and Safari, everything works perfectly. The pages all validate successfully using the W3C validator. When I view the page source in IE8, the page has been chopped off around 75% of the size it should be. IE8 claims the page is finished loading, and doesn't give any errors, but of course the page isn't rendering properly. Has anyone seen this before? I'd really appreciate any help.

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• How to version SQL Server schema using VS 2005?

  - by Mike

  I am new to C# programming and am coming to it most recently from working with Ruby on Rails. In RoR, I am used to being able to write schema migrations for the database. I would like to be able to do something similar for my C#/SQLServer projects. Does such a tool exist for the VS 2005 toolset? Would it be wise to use RoR migrations with SQL Server directly outside of VS 2005? In other words, I would handle all schema versioning using ActiveRecord:Migration from Rails but nothing else. If I do handle migrations outside of C# and VS 2005 with another tool, is RoR ActiveRecord:Migration the best thing to use or is there something which is a better fit?

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• $.ajax + authentication + `@` in username

  - by Koning Baard XIV

  I am creating a web app which uses jQuery to authenticate: $.ajax({ url: "/session/create?format=json", type: "GET", dataType: "json", cache: false, username: $("#signin-email").val(), password: $("#signin-password").val(), success: function(data) { if(data.success) { success = true; } } }); The problem is that the code only makes the AJAX-request when the username does not include things like an @, which is required in my app. Can anyone help me with how I can do this? I do not mind changing the back-end a little bit, but requiring users to have an @-less email is not an option. Oh, my back-end is a Ruby-on-Rails app

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• Implementing an Online Waiting Room

  - by saalon

  My organization is building a new version of our ticketing site and is looking for the best way to build an online waiting room when the number of users in our purchase path exceeds a certain limit. The best version of this queue would let new users in after existing users have either completed their purchase or have exceeded a timeout limit after entering the path. I'm trying to get an idea of how this has been implemented by other organizations. Has anyone out there done something similar or have any experience with this? We have some ideas, but I'd like to get a sense of what solutions have been tried and what problems those solutions have run up against. Just to be complete, this site is being built in Ruby on Rails, though I'd love to hear about how people have solved this regardless of platform.

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• OpenId + Bort + google

  - by zakurahime

  Hi I'm new in using ruby and i wanted to implement the openid feature that came with the bort template... I used the google openid url https://www.google.com/accounts/o8/id in the sign up but it cant get the email that i used in the openid login.. here's a part of my code... its the standard code from the bort template def create logout_keeping_session! if using_open_id? authenticate_with_open_id(params[:openid_url], :return_to => open_id_create_url, :required => [:nickname, :email]) do |result, identity_url, registration| if result.successful? create_new_user(:identity_url => identity_url, :login => registration['nickname'], :email => registration['email']) else failed_creation(result.message || "Sorry, something went wrong") end end else create_new_user(params[:user]) end end i will really appreciate any help on this.. i've been stuck with this for a few days now.. thanks

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• 2 Spaces or 1 Tab, what's the standard for indentation in the Rails Community?

  - by viatropos

  I've noticed that most of the HTML/XML/HAML that gets generated from plugins uses 2 spaces instead of 1 tab. I use textmate and have tabs set to 4 spaces for HAML/HTML/XML and 2 spaces for Javascript/Ruby, but I only have to press the tab key once to get nice indentation. Pressing the space bar twice and delete twice seems like too much work :p. Do you manually type two spaces, or is some middle layer converting tabs to two spaces? Or do just a few of you use tabs?

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• What does it mean for a language to be `interpreted'?

  - by Bubba88

  Hi! A newbie question. Do languages like e.g. Ruby (if running MRI, I mean not compiled to byte-code) run actually parsed everytime when an execution of e.g. method or loop body is needed? I mean, to execute a loop, you need to parse its body N times? I just always thought that all these programs are being parsed one time at the bootstrap - transformed in a 'strongly-typed' statements tree etc.. Is that not true?

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• Missing the Rails gem. Please `gem install -v=2.3.4 rails`

  - by Brian Roisentul

  I was trying to fix this error and I ended up with a new one. I have installed ruby 1.8.6, but using Built-in JRuby 1.4.0 for my app. Everything was working fine until I updated every gem(as specified by the answer I got from that link) and everything crashed: ever since I tried to start the app I received the following error message: Missing the Rails 2.3.4 gem. Please gem install -v=2.3.4 rails, update your RAILS_GEM_VERSION setting in config/environment.rb for the Rails version you do have installed, or comment out RAILS_GEM_VERSION to use the latest version installed. Then, I tried to uninstall the updates(to v2.3.8, most of them), so the last version is 2.3.4. In my config/environment.rb file I have this: RAILS_GEM_VERSION = '2.3.4' unless defined? RAILS_GEM_VERSION so I guess everything is as I left it before the update. The question is....why do I keep getting the error and I can't start the app?

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• RVM 1.9.1 & nokogiri

  - by scaney

  Having trouble installing the nokogiri gem under rvm ruby 1.9.1. gem install nokogiri I'm getting ... /usr/include/libxml2... no libxml2 is missing. try 'port install libxml2' or 'yum install libxml2-devel' *** extconf.rb failed *** but i checked: sudo apt-get install libxml2 and i got: Reading state information... Done libxml2 is already the newest version. is this a root thing perhaps? RVM runs everything in userspace.

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• Can EventMachine recognize all threads are completed?

  - by philipjkim

  I'm an EM newbie and writing two codes to compare synchronous and asynchronous IO. I'm using Ruby 1.8.7. The example for sync IO is: def pause_then_print(str) sleep 2 puts str end 5.times { |i| pause_then_print(i) } puts "Done" This works as expected, taking 10+ seconds until termination. On the other hand, the example for async IO is: require 'rubygems' require 'eventmachine' def pause_then_print(str) Thread.new do EM.run do sleep 2 puts str end end end EventMachine.run do EM.add_timer(2.5) do puts "Done" EM.stop_event_loop end EM.defer(proc do 5.times { |i| pause_then_print(i) } end) end 5 numbers are shown in 2.x seconds. Now I explicitly wrote code that EM event loop to be stopped after 2.5 seconds. But what I want is that the program terminates right after printing out 5 numbers. For doing that, I think EventMachine should recognize all 5 threads are done, and then stop the event loop. How can I do that? Also, please correct the async IO example if it can be more natural and expressive. Thanks in advance.

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• Configuring SQL Server Management Studio to use Windows Integrated Authentication &hellip; from non-

  - by Enrique Lima

  Did you know you can pass your Windows credentials to SQL Server even when working from a workstation that is not joined to a domain? Here is how … From Start, then click All Programs, find Microsoft SQL Server (version 2005 or 2008). Once there, do a right-click on SQL Server Management Studio, then click on Properties Now, follow below to modify the entry for Target: Now the real task (we will be using the runas command) … Modify the shortcut’s target as follows, and remember to replace <domain\user> with the values that correspond to your environment : x64 SQL Server 2008 C:\Windows\System32\runas.exe /user:<domain\user> /netonly "C:\Program Files (x86)\Microsoft SQL Server\100\Tools\binn\VSShell\Common7\IDE\Ssms.exe -nosplash" SQL Server 2005 C:\Windows\System32\runas.exe /user:<domain\user> /netonly "C:\Program Files (x86)\Microsoft SQL Server\90\Tools\binn\VSShell\Common7\IDE\SqlWb.exe -nosplash" x86 SQL Server 2008 C:\Windows\System32\runas.exe /user:<domain\user> /netonly "C:\Program Files\Microsoft SQL Server\100\Tools\binn\VSShell\Common7\IDE\Ssms.exe -nosplash" SQL Server 2005 C:\Windows\System32\runas.exe /user:<domain\user> /netonly "C:\Program Files\Microsoft SQL Server\90\Tools\binn\VSShell\Common7\IDE\SqlWb.exe -nosplash" Since we modified the shortcut, we will need to fix the icon for SSMS.  We will fix it by pressing the Change Icon… button and pointing to the original “icon” providers. It is the executables for SSMS that hold the icon information, so we need to point to … x64 SQL Server 2008 %ProgramFiles% (x86)\Microsoft SQL Server\100\Tools\Binn\VSShell\Common7\IDE\Ssms.exe SQL Server 2005 C:\Program Files (x86)\Microsoft SQL Server\90\Tools\binn\VSShell\Common7\IDE\SqlWb.exe x86 SQL Server 2008 %ProgramFiles%\Microsoft SQL Server\100\Tools\Binn\VSShell\Common7\IDE\Ssms.exe SQL Server 2005 C:\Program Files\Microsoft SQL Server\90\Tools\binn\VSShell\Common7\IDE\SqlWb.exe When you start SSMS from a modified shortcut, you’ll be prompted for your domain password: SSMS will show up stating a different account in the username box, but the parameters from the configuration you are doing above do work and will pass on correctly.

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• Is there some advantage to filling a stack with nils and interpreting the "top" as the last non-nil value?

  - by dwilbank

  While working on a rubymonk exercise, I am asked to implement a stack with a hard size limit. It should return 'nil' if I try to push too many values, or if I try to pop an empty stack. My solution is below, followed by their solution. Mine passes every test I can give it in my IDE, while it fails rubymonk's test. But that isn't my question. Question is, why did they choose to fill the stack with nils instead of letting it shrink and grow like it does in my version? It just makes their code more complex. Here's my solution: class Stack def initialize(size) @max = size @store = Array.new end def pop empty? ? nil : @store.pop end def push(element) return nil if full? @store.push(element) end def size @store.size end def look @store.last end private def full? @store.size == @max end def empty? @store.size == 0 end end and here is the accepted answer class Stack def initialize(size) @size = size @store = Array.new(@size) @top = -1 end def pop if empty? nil else popped = @store[@top] @store[@top] = nil @top = @top.pred popped end end def push(element) if full? or element.nil? nil else @top = @top.succ @store[@top] = element self end end def size @size end def look @store[@top] end private def full? @top == (@size - 1) end def empty? @top == -1 end end

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• How were some language communities (eg, Ruby and Python) able to prevent fragmentation while others (eg, Lisp or ML) were not?

  - by chrisaycock

  The term "Lisp" (or "Lisp-like") is an umbrella for lots of different languages, such as Common Lisp, Scheme, and Arc. There is similar fragmentation is other language communities, like in ML. However, Ruby and Python have both managed to avoid this fate, where innovation occurred more on the implementation (like PyPy or YARV) instead of making changes to the language itself. Did the Ruby and Python communities do something special to prevent language fragmentation?

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• ARM sort un IDE gratuit pour le développement natif sous Android : d'édition communautaire d'ARM Development Studio 5

  ARM sort un IDE gratuit pour le développement natif sous Android L'édition communautaire d'ARM Development Studio 5 ARM ltd, développeur de l'architecture éponyme, vient d'annoncer la disponibilité de Development Studio 5 (DS-5) en édition communautaire (CE). Cette édition permettra de développer sans frais de licence, des applications Android natives en C/C++ allant jusqu'à quatre fois plus vite que le code Java. Ce toolkit est fondé sur Eclipse. Il vient compléter les SDK et NDK (Native Develope...

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• Cloud 9 and Grunt.js

  - by Michael Ryan Soileau

  I'm running grunt.js on Cloud9. Most everything is working correctly, except when I try to set this option: 'watch: { options: {livereload:true},' If I add that, the terminal states: 'Fatal error: listen EACCES' I'm guessing I need to use the sudo command to run that and since c9 doesn't let you run sudo, the command fails. But why is livereload a feature that requires permission? And is there any way around it?

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• Debugging matchit plugin in vim (under Cygwin)

  - by system PAUSE

  The "matchit" plugin for vim is supposed to allow you to use the % key to jump between matching start/end tags when editing HTML, as well as /* and */ comment delimiters when editing other kinds of code. I've followed the exact instructions in ":help matchit", but % still doesn't work for me. It seems silly to ask "Why doesn't this work?" so instead I'm asking How can I diagnose the problem? Pointers to references are welcome, but specific vim-plugin-debugging techniques are preferred. Here is the ~/.vim directory: $ ls -ltaGR ~/.vim /cygdrive/y/.vim: total 0 drwxr-xr-x 1 spause 0 Sep 17 13:20 .. drwxr-xr-x 1 spause 0 Sep 16 13:59 doc drwxr-xr-x 1 spause 0 Sep 16 13:58 . drwxr-xr-x 1 spause 0 Sep 16 13:58 plugin /cygdrive/y/.vim/doc: total 24 -rw-r--r-- 1 spause 1961 Sep 16 13:59 tags drwxr-xr-x 1 spause 0 Sep 16 13:59 . -rw-r--r-- 1 spause 19303 Sep 16 13:58 matchit.txt drwxr-xr-x 1 spause 0 Sep 16 13:58 .. /cygdrive/y/.vim/plugin: total 32 drwxr-xr-x 1 spause 0 Sep 16 13:58 .. -rw-r--r-- 1 spause 30714 Sep 16 13:58 matchit.vim drwxr-xr-x 1 spause 0 Sep 16 13:58 . I am running vim 7.2 under Cygwin (installed Fall 2008). cygcheck shows: 1829k 2008/06/12 C:\cygwin\bin\cygwin1.dll Cygwin DLL version info: DLL version: 1.5.25 DLL epoch: 19 DLL bad signal mask: 19005 DLL old termios: 5 DLL malloc env: 28 API major: 0 API minor: 156 Shared data: 4 DLL identifier: cygwin1 Mount registry: 2 Cygnus registry name: Cygnus Solutions Cygwin registry name: Cygwin Program options name: Program Options Cygwin mount registry name: mounts v2 Cygdrive flags: cygdrive flags Cygdrive prefix: cygdrive prefix Cygdrive default prefix: Build date: Thu Jun 12 19:34:46 CEST 2008 CVS tag: cr-0x5f1 Shared id: cygwin1S4 In vim, :set shows: --- Options --- autoindent fileformat=dos shiftwidth=3 background=dark filetype=html syntax=html cedit=^F scroll=24 tabstop=3 expandtab shelltemp textmode viminfo='20,<50,s10,h Notably, the syntax and filetype are both recognized as HTML. (The syntax colouring is just fine.) If additional info is needed, please comment. UPDATE: Per answer by too much php: After trying vim -V1, I had changed my .vimrc to include a line set nocp so the compatible option is not on. :let loadad_matchit loaded_matchit #1 :set runtimepath? runtimepath=~/.vim,/usr/share/vim/vimfiles,/usr/share/vim/vim72,/usr/share/vim/vimfiles/after,~/.vim/after (~ is /cygdrive/y) Per answer by michael: :scriptnames 1: /cygdrive/y/.vimrc 2: /usr/share/vim/vim72/syntax/syntax.vim 3: /usr/share/vim/vim72/syntax/synload.vim 4: /usr/share/vim/vim72/syntax/syncolor.vim 5: /usr/share/vim/vim72/filetype.vim 6: /usr/share/vim/vim72/colors/evening.vim 7: /cygdrive/y/.vim/plugin/matchit.vim 8: /cygdrive/y/.vim/plugin/python_match.vim 9: /usr/share/vim/vim72/plugin/getscriptPlugin.vim 10: /usr/share/vim/vim72/plugin/gzip.vim 11: /usr/share/vim/vim72/plugin/matchparen.vim 12: /usr/share/vim/vim72/plugin/netrwPlugin.vim 13: /usr/share/vim/vim72/plugin/rrhelper.vim 14: /usr/share/vim/vim72/plugin/spellfile.vim 15: /usr/share/vim/vim72/plugin/tarPlugin.vim 16: /usr/share/vim/vim72/plugin/tohtml.vim 17: /usr/share/vim/vim72/plugin/vimballPlugin.vim 18: /usr/share/vim/vim72/plugin/zipPlugin.vim 19: /usr/share/vim/vim72/syntax/html.vim 20: /usr/share/vim/vim72/syntax/javascript.vim 21: /usr/share/vim/vim72/syntax/vb.vim 22: /usr/share/vim/vim72/syntax/css.vim Note that matchit.vim, html.vim, tohtml.vim, css.vim, and javascript.vim are all present. :echo b:match_words E121: Undefined variable: b:match_words E15: Invalid expression: b:match_words Hm, this looks highly relevant. I'm now looking through :help matchit-debug to find out how to fix b:match_words.

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