{"id":333,"date":"2007-07-09T08:04:16","date_gmt":"2007-07-08T23:04:16","guid":{"rendered":"https:\/\/wp-78qb7hnp.pistolfly.jp\/weblog\/2007\/07\/post-41.html"},"modified":"2012-07-08T23:38:41","modified_gmt":"2012-07-08T14:38:41","slug":"post-41","status":"publish","type":"post","link":"https:\/\/www.pistolfly.com\/weblog\/2007\/07\/post-41.html","title":{"rendered":"===\u6f14\u7b97\u5b50"},"content":{"rendered":"

Part2\u3000Ruby\u306b\u5b66\u3076\u300cRuby on Rails\u306e\u6b63\u4f53\u300d\uff1aITpro<\/a><\/p>\n

def normalize_input(user_input)\r\n return case user_input\r\n when Numeric\r\n  user_input # \u6570\u5024\u306f\u305d\u306e\u307e\u307e\r\n when 'inf'\r\n  1.0 \/ 0.0 # inf\u306f\u7121\u9650\u5927\r\n when 'a' .. 'f'\r\n  user_input.hex # a\u304b\u3089f\u307e\u3067\u306e\u6587\u5b57\u309216\u9032\u6570\u3068\u89e3\u91c8\r\n when \/^[0-9]+$\/\r\n  user_input.to_i # \u6570\u5b57\u304b\u3089\u306a\u308b\u6587\u5b57\u5217\u3092\u6570\u5024\u5316\r\n else\r\n  raise # \u305d\u308c\u4ee5\u5916\u306f\u30a8\u30e9\u30fc\r\n end\r\nend<\/pre>\n
def normalize_input(user_input)\r\n return if user_input.kind_of? Numeric then\r\n  user_input\r\n elsif 'inf' == user_input then\r\n  1.0 \/ 0.0\r\n elsif ('a' .. 'f').include? user_input then\r\n  user_input.hex\r\n elsif \/^[0-9]+$\/.match? user_input then\r\n  user_input.to_i\r\n else\r\n  raise\r\n end\r\nend<\/pre>\n
\nObject#===\u30e1\u30bd\u30c3\u30c9\u306f\uff0c\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u306f\u540c\u5024\u6f14\u7b97\u5b50==\u3092\u547c\u3073\u51fa\u3057\u307e\u3059\u3002
\n\u3053\u306e\u305f\u3081\uff0c2\u756a\u76ee\u306e\u6761\u4ef6\u5224\u5b9a\u306f\uff0c'inf' == user_input\u3068\u3057\u3066\u6a5f\u80fd\u3057\u307e\u3059\u3002
\n\u4e00\u65b9\uff0cClass\u30af\u30e9\u30b9\u3067\u306f===\u30e1\u30bd\u30c3\u30c9\u306f\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3055\u308c\uff0c\u30af\u30e9\u30b9\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3067\u3042\u308b\u304b\u3069\u3046\u304b\u3092\u8abf\u3079\u308b kind_of?\u30e1\u30bd\u30c3\u30c9\u3068\u540c\u69d8\u306e\u6a5f\u80fd\u3092\u6301\u3064\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u307e\u3059\uff08\u56f32\uff09\u3002\u3053\u308c\u306b\u3088\u308a\uff0c\u6700\u521d\u306e\u300c\u30af\u30e9\u30b9\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3067\u3042\u308b\u304b\u3069\u3046\u304b\u300d\u3068\u3044\u3046\u6761\u4ef6\u5224\u5b9a\u304c\u3046\u307e\u304f\u3044\u304f\u306e\u3067\u3059\u3002
\n\u540c\u69d8\u306b\uff0cRange(\u7bc4\u56f2)\u30af\u30e9\u30b9\u3067\u306f\uff0c\u7bc4\u56f2\u5185\u3067\u3042\u308b\u304b\u3069\u3046\u304b\u3092\u5224\u5b9a\u3059\u308binclude?\u30e1\u30bd\u30c3\u30c9\u3067\u3042\u308b\u304b\u306e\u3088\u3046\u306b\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3055\u308c\uff0cRegex(\u6b63\u898f\u8868\u73fe)\u30af\u30e9\u30b9\u3067\u306f\uff0c\u30de\u30c3\u30c1\u3059\u308b\u304b\u3069\u3046\u304b\u3092\u5224\u5b9a\u3059\u308bmatch?\u3067\u3042\u308b\u304b\u306e\u3088\u3046\u306b\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3055\u308c\u3066\u3044\u307e\u3059\u3002
\nRuby\u306e\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea\u306f\uff0c\u30af\u30e9\u30b9\u3054\u3068\u306b\u9069\u5207\u306a\u5b9f\u88c5\u3067Object#===\u3092\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3059\u308b\u3053\u3068\u3067\uff0ccase\u5f0f\u306e\u67d4\u8edf\u306a\u6319\u52d5\u3092\u5b9f\u73fe\u3057\u3066\u3044\u307e\u3059\u3002\n<\/p><\/blockquote>\n","protected":false},"excerpt":{"rendered":"
Part2\u3000Ruby\u306b\u5b66\u3076\u300cRuby on Rails\u306e\u6b63\u4f53\u300d\uff1aITpro def normalize_input(user_input) return case user_input when Numeric user … \u7d9a\u304d\u3092\u8aad\u3080 ===\u6f14\u7b97\u5b50<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_locale":"","_original_post":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[27],"tags":[],"class_list":["post-333","post","type-post","status-publish","format-standard","hentry","category-ruby","ja"],"yoast_head":"\n===\u6f14\u7b97\u5b50 - Pistolfly<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.pistolfly.com\/weblog\/2007\/07\/post-41.html\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"===\u6f14\u7b97\u5b50 - 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