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# source code from internet & Why's (Poignant) Guide to Ruby

# fibonacci by ruby one liners
fibonacci = Hash.new { |h, k| x < 2 ? k : h[k] = h[k-1] + h[k-2] }

# print something several times
5.times { print "Odelay!" }

# unless
exit unless "restaurant".include? "aura"

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# scannerController.rb

  def session(session, didScan:result)
    if (!result.nil?)
      if (!(@result==result))
        @result = result.copy
        @scannerSession.pause;
        
        Dispatch::Queue.main.async{ 
          @overlayController.scanner(self, resultFound:result)

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# example
platform: iOS
pod 'Moodstocks-iOS-SDK', '~> 3.5'

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def gen_bridge_metadata(headers, bs_file)
  sdk_path = self.sdk('iPhoneSimulator')
  includes = headers.map { |header| "-I'#{File.dirname(header)}'" }.uniq
  a = sdk_version.scan(/(\d+)\.(\d+)/)[0]
  sdk_version_headers = ((a[0].to_i * 10000) + (a[1].to_i * 100)).to_s
  extra_flags = OSX_VERSION >= 10.7 ? '--no-64-bit' : ''
  sh "RUBYOPT='' /usr/bin/gen_bridge_metadata --format complete #{extra_flags} --cflags \"-isysroot #{sdk_path} -miphoneos-version-min=#{sdk_version} -D__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__=#{sdk_version_headers} -I. #{includes.join(' ')}\" #{headers.map { |x| "\"#{x}\"" }.join(' ')} -o \"#{bs_file}\""
end

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# Example of delegation in RubyMotion
class MsActivityView < UIView
  attr_accessor :delegate
  def initWithFrame(frame)
    super
    #...
    @cancelButton = UIButton.alloc.init
    @cancelButton.addTarget(
      self,
      action: :cancel,

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pod 'yourpod', :podspec => "/path/to/your/podsepc"

# OR

pod "yourpod", :local => "/path/to/your/repo"

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#if MS_SDK_REQUIREMENTS

/**
 * Open the scanner and connect it to the database file
 */
- (BOOL)open:(NSError **)error;

/**
 * Close the scanner and disconnect it from the database file
 */

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Objective-C stub for message `open:' type `c@:^@' not precompiled. Make sure you properly link with the framework or library that defines this message.

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/* Declare an orientation delegate protocol somewhere */

@protocol SomeOrientationDelegate <NSObject>
(NSUInteger)supportedInterfaceOrientations;
(BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation;
(BOOL)shouldAutorotate;	
@end

//...

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/* MSHandler.m */

// Dispatched as soon as the synchronization progresses
// In this method we set "shouldKeepCallback" as YES since the sync is still in progress
- (void)didSyncWithProgress:(NSNumber *)current total:(NSNumber *)total {
    int percent = 100 * [current floatValue] / [total floatValue];
    [self.plugin returnSyncStatus:@""
                           status:2
                         progress:percent
                         callback:self.callback