Implementing an internal DSL in Ruby
On Christmas Day 2007 I released the 0.0.1 version of expectations. Expectations is the result of several months of designing what I wanted the Domain Specific Language (DSL) to look like, and a few days of making it executable. To design the DSL, I created what I was looking for without worrying about implementation. This entry is going to focus on what it took to take the DSL from looking good t
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Jay Fields' Thoughts: Implementing an internal DSL in Ruby Rubyã§ã®DSLã®ä½œã‚Šæ–¹ã‚’expectationsã¨ã„ã†testing frameworkを例ã«ã¨ã£ã¦èª¬æ˜Žã—ã¦ã„る。 ã‚„ã£ã±assert_equalã£ã¦ã‚ªãƒ–ジェクト指å‘ã£ã½ããªãã¦ã‚«ãƒƒã‚³æ‚ªã„よãï½—ã“ã“ã¯DSLã§ã‚«ãƒƒã‚³ã‚ˆã書ããŸã„ã‚‚ã®ã 。 å½¼ã®è¨€ã„ãŸã„ã“ã¨ã‚’日本語ã§è¶…è¦ç´„ã—ã¦ã¿ã‚‹ã€‚ ã¾ãšã€ã©ã†ã„ã†ãµã†ã«æ›¸ããŸã„ã‹ã‚’決ã‚る。ã“ã‚“ãªæ„Ÿã˜ã«ã—ãŸã„。 Expectations do # テストã よã¨ã„ã†ãƒ–ãƒãƒƒã‚¯ expect :expected do # :expectedãŒæœŸå¾…ã•ã‚Œã‚‹å€¤ :expected # ブãƒãƒƒã‚¯ã®è©•ä¾¡çµæžœãŒå®Ÿéš›ã®å€¤ end end ã“ã‚Œã‹ã‚‰ã€ã“れをRubyスクリプトã¨ã—ã¦å®Ÿè¡Œå¯èƒ½ãªå½¢å¼ã«ã™ã‚‹ã€‚ ã¾ãšã€DSLã‚’èªã¿è¾¼ã‚“ã ら（実行ã—ãŸã‚‰ï¼‰ã€Expectatio
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