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How to read macros
20 December 2012 In my last post I gave a little overview of sweet.js the hygienic macro system I built over the summer. Today I want to write a little bit about what makes sweet.js possible and why we haven't really seen a macro system for JavaScript before now. I gave hints at some of this in my intern talk but now we can finally do a deep dive! Basics # First, let's take a look at compilers 101
design
skip over comments if tok is / if tok-1 is () if tok-2 in "if" "while" "for" "with" tok is start of regex literal else tok is divide else if tok-1 is {} if isBlock(tok-1) // named or anonymous function if tok-2 is () and tok-3 is "function" or tok-4 is "function" if function expression // how to determine is described below tok is divide else tok is start of regex literal else tok is start of rege
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クラッシュãƒã‚°è§£æžã‚µãƒ¼ãƒ“ス㮠crittercism 㨠bugsense を使ã£ã¦ã¿ãŸã®ã§ãã®æ¯”較。 今ã¾ã§ Android/iOS アプリã®ã‚¯ãƒ©ãƒƒã‚·ãƒ¥ãƒã‚°è§£æžã¯ã€è‡ªå‰ã§ã‚„ã£ã¦ã„ã¾ã—ãŸã€‚具体的ã«ã¯ plcrashreporter を組ã¿è¾¼ã‚“ã§ã€è‡ªå‰ã® Web サーãƒã«ã‚¯ãƒ©ãƒƒã‚·ãƒ¥ãƒã‚°é€ã£ã¦ã€ãƒ•ã‚¡ã‚¤ãƒ«ä¿å˜ã—ã¦ãŠãã¨ã„ã†æ–¹æ³•ã ã£ãŸã®ã§ã™ãŒã€ãƒã‚°ã‚’分類ã—ãŸã‚Šã€ã‚·ãƒ³ãƒœãƒ«ã‚’復元ã—ãŸã‚ŠãŒè¶…é¢å€’ãªã®ã§æ£ç›´ã‚ã¾ã‚Šæ´»ç”¨ã§ãã¦ã„ã¾ã›ã‚“ã§ã—ãŸã€‚ クラッシュãƒã‚°è§£æžã‚µãƒ¼ãƒ“スã¯ã„ãã¤ã‹ã‚ã‚Šã¾ã™ãŒã€æ¯”較的安価ã«ä½¿ãˆãã†ãª crittercism 㨠bugsense を試用ã—ã¦ã„ã¾ã™ã€‚ ã©ã¡ã‚‰ã‚‚ã€ã‚¯ãƒ©ãƒƒã‚·ãƒ¥ãŒç™ºç”Ÿã—ãŸãƒã‚°ã‚’å–å¾—ã—ã¦ã‚µãƒ¼ãƒã«é€ã‚Šã€ã‚¹ã‚¿ãƒƒã‚¯ãƒˆãƒ¬ãƒ¼ã‚¹ãªã©ã®æƒ…å ±ã‚’ãƒ–ãƒ©ã‚¦ã‚¶ã§é–²è¦§ã™ã‚‹ã“ã¨ãŒã§ãã¾ã™ã€‚ 実際使ã£ã¦ã¿ã‚‹ã¨è¶…便利ã§ã™ã€‚ã‚‚ã†ã“ã®æ‰‹ã®ã‚µãƒ¼ãƒ“スãªã—ã§ã¯ç”Ÿãã¦ã„ã‘ã¾ã›ã‚“。 大é‡ã«ãƒã‚°ãŒã§ãŸã‚‰è¦‹ã‚‹ã®ãŒå¤§å¤‰ã˜ã‚ƒãª
AVFoundationã§ã‚«ãƒ¡ãƒ©ã‚’表示ã™ã‚‹ã¨ã¦ã‚‚çŸã„サンプル - Qiita
#import <UIKit/UIKit.h> #import <AVFoundation/AVFoundation.h> @interface ViewController : UIViewController<AVCaptureVideoDataOutputSampleBufferDelegate> @property (nonatomic, strong) AVCaptureSession* session; @property (nonatomic, strong) IBOutlet UIImageView* imageView; @end - (void)viewDidLoad { [super viewDidLoad]; //デãƒã‚¤ã‚¹å–å¾— AVCaptureDevice* device = [AVCaptureDevice defaultDeviceWithMediaType:
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Node.js — Node v0.9.4 (Unstable)
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