Ruby\u306egsub\u30e1\u30bd\u30c3\u30c9\u306f\u3001\u6587\u5b57\u5217\u64cd\u4f5c\u306e\u5f37\u529b\u306a\u6b66\u5668\u3067\u3059\u3002
\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9\u304b\u3089\u9ad8\u5ea6\u306a\u30c6\u30af\u30cb\u30c3\u30af\u307e\u3067\u3001gsub\u306e\u5168\u8c8c\u3092\u5fb9\u5e95\u89e3\u8aac\u3057\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3092\u901a\u3058\u3066\u3001\u3042\u306a\u305f\u3082\u52b9\u7387\u7684\u306a\u6587\u5b57\u5217\u51e6\u7406\u306e\u30a8\u30ad\u30b9\u30d1\u30fc\u30c8\u306b\u306a\u308c\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n
\u76ee\u6b21 <\/p>\n
Ruby\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306b\u304a\u3044\u3066\u3001\u6587\u5b57\u5217\u64cd\u4f5c\u306f\u907f\u3051\u3066\u901a\u308c\u306a\u3044\u91cd\u8981\u306a\u30b9\u30ad\u30eb\u3067\u3059\u3002 \u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306b\u304a\u3044\u3066\u3001\u6587\u5b57\u5217\u64cd\u4f5c\u306f\u975e\u5e38\u306b\u983b\u7e41\u306b\u884c\u308f\u308c\u308b\u51e6\u7406\u306e\u4e00\u3064\u3067\u3059\u3002\u4ee5\u4e0b\u306b\u3001\u6587\u5b57\u5217\u64cd\u4f5c\u304c\u91cd\u8981\u3067\u3042\u308b\u7406\u7531\u3092\u3044\u304f\u3064\u304b\u6319\u3052\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n \u3053\u306e\u3088\u3046\u306a\u6587\u5b57\u5217\u64cd\u4f5c\u306e\u30cb\u30fc\u30ba\u306b\u5fdc\u3048\u308b\u305f\u3081\u3001Ruby\u306b\u306f\u69d8\u3005\u306a\u30e1\u30bd\u30c3\u30c9\u304c\u7528\u610f\u3055\u308c\u3066\u3044\u307e\u3059\u3002 \u672c\u8a18\u4e8b\u3067\u306f\u3001gsub\u30e1\u30bd\u30c3\u30c9\u306e\u57fa\u790e\u304b\u3089\u5fdc\u7528\u307e\u3067\u3001\u5e45\u5e83\u3044\u30c8\u30d4\u30c3\u30af\u3092\u30ab\u30d0\u30fc\u3057\u307e\u3059\u3002\u5177\u4f53\u7684\u306b\u4ee5\u4e0b\u306e\u5185\u5bb9\u3092\u5b66\u3076\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n \u3053\u308c\u3089\u306e\u77e5\u8b58\u3092\u8eab\u306b\u3064\u3051\u308b\u3053\u3068\u3067\u3001\u3042\u306a\u305f\u306eRuby\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u30b9\u30ad\u30eb\u306f\u78ba\u5b9f\u306b\u5411\u4e0a\u3059\u308b\u3067\u3057\u3087\u3046\u3002 \u3055\u3042\u3001Ruby\u306e\u6587\u5b57\u5217\u64cd\u4f5c\u306e\u4e16\u754c\u306b\u98db\u3073\u8fbc\u3093\u3067\u3001gsub\u30de\u30b9\u30bf\u30fc\u3078\u306e\u9053\u3092\u6b69\u307f\u59cb\u3081\u307e\u3057\u3087\u3046\uff01<\/p>\n\n\n\n gsub\u30e1\u30bd\u30c3\u30c9\u306f\u975e\u5e38\u306b\u5f37\u529b\u306a\u6587\u5b57\u5217\u64cd\u4f5c\u30c4\u30fc\u30eb\u3067\u3059\u304c\u3001\u305d\u306e\u529b\u3092\u6700\u5927\u9650\u306b\u5f15\u304d\u51fa\u3059\u305f\u3081\u306b\u306f\u3001\u6b63\u3057\u3044\u4f7f\u3044\u65b9\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002 gsub\u30e1\u30bd\u30c3\u30c9\u306e\u57fa\u672c\u69cb\u6587\u306f\u4ee5\u4e0b\u306e2\u3064\u306e\u5f62\u5f0f\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n \u4ee5\u4e0b\u306b\u7c21\u5358\u306a\u4f8b\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n \u6ce8\u610f\u70b9\u3068\u3057\u3066\u3001gsub\u30e1\u30bd\u30c3\u30c9\u306f\u975e\u7834\u58ca\u7684\u30e1\u30bd\u30c3\u30c9\u3067\u3042\u308a\u3001\u5143\u306e\u6587\u5b57\u5217\u306f\u5909\u66f4\u3055\u308c\u307e\u305b\u3093\u3002 gsub\u30e1\u30bd\u30c3\u30c9\u306e\u771f\u306e\u529b\u306f\u3001\u6b63\u898f\u8868\u73fe\u3068\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u767a\u63ee\u3055\u308c\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u3001\u3088\u304f\u4f7f\u308f\u308c\u308b\u6b63\u898f\u8868\u73fe\u30d1\u30bf\u30fc\u30f3\u3068\u305d\u306e\u4f7f\u7528\u4f8b\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n gsub\u3092\u4f7f\u7528\u3059\u308b\u969b\u306b\u3088\u304f\u3042\u308b\u9593\u9055\u3044\u3068\u6ce8\u610f\u70b9\u3092\u3044\u304f\u3064\u304b\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n \u3053\u308c\u3089\u306e\u57fa\u672c\u3092\u62bc\u3055\u3048\u308b\u3053\u3068\u3067\u3001gsub\u30e1\u30bd\u30c3\u30c9\u3092\u52b9\u679c\u7684\u306b\u6d3b\u7528\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u3088\u308a\u5b9f\u8df5\u7684\u306a\u4f7f\u7528\u4f8b\u3092\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n gsub\u30e1\u30bd\u30c3\u30c9\u306e\u57fa\u672c\u3092\u7406\u89e3\u3057\u305f\u3068\u3053\u308d\u3067\u3001\u3088\u308a\u5b9f\u8df5\u7684\u306a\u4f7f\u7528\u4f8b\u3092\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002 \u8907\u6570\u306e\u30d1\u30bf\u30fc\u30f3\u3092\u540c\u6642\u306b\u7f6e\u63db\u3057\u305f\u3044\u5834\u5408\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30c6\u30af\u30cb\u30c3\u30af\u304c\u6709\u52b9\u3067\u3059\u3002<\/p>\n\n\n\n \u3053\u306e\u30c6\u30af\u30cb\u30c3\u30af\u306f\u3001\u7f6e\u63db\u30d1\u30bf\u30fc\u30f3\u304c\u591a\u3044\u5834\u5408\u306b\u7279\u306b\u6709\u52b9\u3067\u3059\u3002<\/p>\n\n\n\n \u5c11\u6570\u306e\u30d1\u30bf\u30fc\u30f3\u3092\u7f6e\u63db\u3059\u308b\u5834\u5408\u306f\u3001\u3053\u306e\u65b9\u6cd5\u304c\u30b7\u30f3\u30d7\u30eb\u3067\u52b9\u679c\u7684\u3067\u3059\u3002<\/p>\n\n\n\n \u6761\u4ef6\u306b\u5fdc\u3058\u3066\u7570\u306a\u308b\u7f6e\u63db\u3092\u884c\u3044\u305f\u3044\u5834\u5408\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30c6\u30af\u30cb\u30c3\u30af\u304c\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n\n\n\n \u3053\u306e\u4f8b\u3067\u306f\u3001\u901a\u8ca8\u8a18\u53f7\u306b\u5fdc\u3058\u3066\u91d1\u984d\u3092\u5897\u6e1b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n \u3053\u306e\u4f8b\u3067\u306f\u3001\u30ab\u30c6\u30b4\u30ea\u306b\u5fdc\u3058\u3066\u7570\u306a\u308b\u60c5\u5831\u3092\u4ed8\u52a0\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n \u30d6\u30ed\u30c3\u30af\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u67d4\u8edf\u3067\u52d5\u7684\u306a\u7f6e\u63db\u51e6\u7406\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u5b9f\u8df5\u7684\u306a\u4f8b\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n \u3053\u306e\u4f8b\u3067\u306f\u3001\u6442\u6c0f\u6e29\u5ea6\u3092\u83ef\u6c0f\u306b\u5909\u63db\u3057\u3001\u5143\u306e\u6442\u6c0f\u8868\u8a18\u3068\u5171\u306b\u8868\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n \u3053\u306e\u4f8b\u3067\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u30ed\u30b0\u30a4\u30f3\u30fb\u30ed\u30b0\u30a2\u30a6\u30c8\u60c5\u5831\u3092\u8ffd\u8de1\u3057\u3001\u30bb\u30c3\u30b7\u30e7\u30f3\u60c5\u5831\u306b\u7f6e\u63db\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n \u4ee5\u4e0a\u3067\u7d39\u4ecb\u3057\u305f\u30c6\u30af\u30cb\u30c3\u30af\u306f\u3001\u5b9f\u52d9\u306e\u69d8\u3005\u306a\u5834\u9762\u3067\u6d3b\u7528\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u3044\u304f\u3064\u304b\u306e\u5177\u4f53\u7684\u306a\u5fdc\u7528\u4f8b\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n \u3053\u306e\u4f8b\u3067\u306f\u3001\u30ed\u30b0\u30a8\u30f3\u30c8\u30ea\u30fc\u3092\u69cb\u9020\u5316\u3055\u308c\u305fJSON\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306b\u5909\u63db\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n \u3053\u306e\u4f8b\u3067\u306f\u3001\u30b7\u30f3\u30d7\u30eb\u306a\u30de\u30fc\u30af\u30c0\u30a6\u30f3\u3092HTML\u306b\u5909\u63db\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n \u3053\u306e\u4f8b\u3067\u306f\u3001\u4e0d\u7d71\u4e00\u306a\u5f62\u5f0f\u306e\u500b\u4eba\u60c5\u5831\u30c7\u30fc\u30bf\u3092\u6574\u5f62\u3057\u3001\u4e00\u8cab\u3057\u305f\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306b\u5909\u63db\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n \u3053\u308c\u3089\u306e\u5b9f\u8df5\u7684\u306a\u4f8b\u3092\u901a\u3058\u3066\u3001gsub\u30e1\u30bd\u30c3\u30c9\u304c\u5358\u306a\u308b\u6587\u5b57\u5217\u7f6e\u63db\u4ee5\u4e0a\u306e\u529b\u3092\u6301\u3063\u3066\u3044\u308b\u3053\u3068\u304c\u304a\u308f\u304b\u308a\u3044\u305f\u3060\u3051\u305f\u304b\u3068\u601d\u3044\u307e\u3059\u3002 gsub\u306f\u5f37\u529b\u306a\u6587\u5b57\u5217\u64cd\u4f5c\u30c4\u30fc\u30eb\u3067\u3059\u304c\u3001\u5927\u91cf\u306e\u30c7\u30fc\u30bf\u3092\u51e6\u7406\u3059\u308b\u5834\u5408\u3084\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30af\u30ea\u30c6\u30a3\u30ab\u30eb\u306a\u74b0\u5883\u3067\u306f\u3001\u9069\u5207\u306a\u6700\u9069\u5316\u304c\u5fc5\u8981\u306b\u306a\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001gsub\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5411\u4e0a\u3055\u305b\u308b\u305f\u3081\u306e\u79d8\u8a23\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n gsub\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u6700\u9069\u5316\u3059\u308b\u306b\u306f\u3001\u307e\u305a\u305d\u306e\u7279\u6027\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n \u3053\u308c\u3089\u306e\u7279\u6027\u3092\u8e0f\u307e\u3048\u3066\u3001\u4ee5\u4e0b\u306e\u6700\u9069\u5316\u30c6\u30af\u30cb\u30c3\u30af\u3092\u9069\u7528\u3059\u308b\u3053\u3068\u3067\u3001gsub\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n \u6b63\u898f\u8868\u73fe\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4e8b\u524d\u306b\u4f5c\u6210\u3059\u308b\u3053\u3068\u3067\u3001\u30b3\u30f3\u30d1\u30a4\u30eb\u306e\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u3092\u524a\u6e1b\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n \u8907\u6570\u306egsub\u547c\u3073\u51fa\u3057\u30921\u56de\u306b\u7d71\u5408\u3059\u308b\u3053\u3068\u3067\u3001\u6587\u5b57\u5217\u306e\u8d70\u67fb\u56de\u6570\u3092\u6e1b\u3089\u305b\u307e\u3059\u3002<\/p>\n\n\n\n \u5927\u304d\u306a\u30c6\u30ad\u30b9\u30c8\u3092\u5206\u5272\u3057\u3001\u4e26\u5217\u51e6\u7406\u3059\u308b\u3053\u3068\u3067\u3001\u30de\u30eb\u30c1\u30b3\u30a2CPU\u3092\u52b9\u7387\u7684\u306b\u5229\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n \u30d5\u30a1\u30a4\u30eb\u5168\u4f53\u3092\u4e00\u5ea6\u306b\u30e1\u30e2\u30ea\u306b\u8aad\u307f\u8fbc\u3080\u306e\u3067\u306f\u306a\u304f\u30011\u884c\u305a\u3064\u51e6\u7406\u3059\u308b\u3053\u3068\u3067\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u3092\u6291\u3048\u3089\u308c\u307e\u3059\u3002<\/p>\n\n\n\n \u30c6\u30ad\u30b9\u30c8\u5168\u4f53\u3067\u306f\u306a\u304f\u3001\u5fc5\u8981\u306a\u90e8\u5206\u306e\u307f\u3092\u62bd\u51fa\u3057\u3066\u51e6\u7406\u3059\u308b\u3053\u3068\u3067\u3001\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u3092\u524a\u6e1b\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n \u3053\u308c\u3089\u306e\u30c6\u30af\u30cb\u30c3\u30af\u3092\u9069\u7528\u3059\u308b\u969b\u306f\u3001\u5e38\u306b\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u6e2c\u5b9a\u3057\u3001\u6539\u5584\u306e\u52b9\u679c\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002 \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u6700\u9069\u5316\u306f\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u8981\u4ef6\u3084\u51e6\u7406\u3059\u308b\u30c7\u30fc\u30bf\u306e\u7279\u6027\u306b\u5927\u304d\u304f\u4f9d\u5b58\u3057\u307e\u3059\u3002 \u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001gsub\u3068\u4ed6\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u6bd4\u8f03\u3057\u3001\u72b6\u6cc1\u306b\u5fdc\u3058\u305f\u9069\u5207\u306a\u9078\u629e\u65b9\u6cd5\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n Ruby\u306b\u306f\u6587\u5b57\u5217\u64cd\u4f5c\u306e\u305f\u3081\u306e\u69d8\u3005\u306a\u30e1\u30bd\u30c3\u30c9\u304c\u7528\u610f\u3055\u308c\u3066\u3044\u307e\u3059\u3002 \u307e\u305a\u3001gsub\u3068\u983b\u7e41\u306b\u6bd4\u8f03\u3055\u308c\u308b\u4e3b\u8981\u306a\u30e1\u30bd\u30c3\u30c9\u306e\u7279\u5fb4\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n \u3053\u308c\u3089\u306e\u30e1\u30bd\u30c3\u30c9\u306e\u4f7f\u3044\u5206\u3051\u306f\u3001\u4e3b\u306b\u4ee5\u4e0b\u306e\u57fa\u6e96\u3067\u5224\u65ad\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n \u4ee5\u4e0b\u306b\u3001\u305d\u308c\u305e\u308c\u306e\u30e1\u30bd\u30c3\u30c9\u306e\u9069\u5207\u306a\u4f7f\u7528\u30b7\u30fc\u30f3\u3092\u793a\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n \u6b63\u898f\u8868\u73fe\u3092\u4f7f\u7528\u3057\u306a\u3044\u7f6e\u63db\u65b9\u6cd5\u3082\u3001\u72b6\u6cc1\u306b\u3088\u3063\u3066\u306f\u6709\u52b9\u3067\u3059\u3002<\/p>\n\n\n\n \u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3084\u7bc4\u56f2\u3092\u6307\u5b9a\u3057\u3066\u7f6e\u63db\u3059\u308b\u5834\u5408\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n \u533a\u5207\u308a\u6587\u5b57\u3067\u5206\u5272\u3057\u3001\u8981\u7d20\u3092\u51e6\u7406\u3057\u3066\u518d\u7d50\u5408\u3059\u308b\u5834\u5408\u306b\u6709\u52b9\u3067\u3059\u3002<\/p>\n\n\n\n \u7279\u5b9a\u306e\u30d1\u30bf\u30fc\u30f3\u306b\u30de\u30c3\u30c1\u3059\u308b\u90e8\u5206\u3092\u62bd\u51fa\u3057\u3066\u51e6\u7406\u3059\u308b\u5834\u5408\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n \u30e1\u30bd\u30c3\u30c9\u306e\u9078\u629e\u306b\u306f\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3082\u91cd\u8981\u306a\u8981\u7d20\u3067\u3059\u3002 \u3053\u306e\u7d50\u679c\u304b\u3089\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u5206\u6790\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n \u305f\u3060\u3057\u3001\u3053\u308c\u3089\u306e\u7d50\u679c\u306f\u5358\u7d14\u306a\u30b1\u30fc\u30b9\u3067\u306e\u3082\u306e\u3067\u3059\u3002 \u30e1\u30bd\u30c3\u30c9\u306e\u9078\u629e\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3092\u53c2\u8003\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n \u9069\u5207\u306a\u30e1\u30bd\u30c3\u30c9\u306e\u9078\u629e\u306f\u3001\u30b3\u30fc\u30c9\u306e\u52b9\u7387\u6027\u3068\u53ef\u8aad\u6027\u306e\u4e21\u65b9\u3092\u5411\u4e0a\u3055\u305b\u308b\u91cd\u8981\u306a\u8981\u7d20\u3067\u3059\u3002 gsub\u306e\u7406\u8ad6\u7684\u306a\u7406\u89e3\u3092\u6df1\u3081\u305f\u3068\u3053\u308d\u3067\u3001\u5b9f\u969b\u306e\u696d\u52d9\u3067\u3069\u306e\u3088\u3046\u306b\u6d3b\u7528\u3067\u304d\u308b\u304b\u3001\u5177\u4f53\u7684\u306a\u30b3\u30fc\u30c9\u4f8b\u3092\u901a\u3058\u3066\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002 Web\u30b5\u30fc\u30d0\u30fc\u306e\u30a2\u30af\u30bb\u30b9\u30ed\u30b0\u304b\u3089\u7279\u5b9a\u306e\u60c5\u5831\u3092\u62bd\u51fa\u3057\u3001\u5206\u6790\u3057\u3084\u3059\u3044\u5f62\u5f0f\u306b\u5909\u63db\u3059\u308b\u4f8b\u3092\u8003\u3048\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n \u3053\u306e\u30b3\u30fc\u30c9\u4f8b\u3067\u306f\u3001gsub\u3092\u4f7f\u7528\u3057\u3066\u8907\u96d1\u306a\u30ed\u30b0\u30a8\u30f3\u30c8\u30ea\u30fc\u3092\u89e3\u6790\u3057\u3001\u69cb\u9020\u5316\u3055\u308c\u305fJSON\u30c7\u30fc\u30bf\u306b\u5909\u63db\u3057\u3066\u3044\u307e\u3059\u3002 \u6b21\u306b\u3001\u30b7\u30f3\u30d7\u30eb\u306a\u30de\u30fc\u30af\u30c0\u30a6\u30f3\u30c6\u30ad\u30b9\u30c8\u3092HTML\u306b\u5909\u63db\u3059\u308b\u4f8b\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n \u3053\u306e\u4f8b\u3067\u306f\u3001\u8907\u6570\u306egsub\u547c\u3073\u51fa\u3057\u3092\u4f7f\u7528\u3057\u3066\u3001\u30de\u30fc\u30af\u30c0\u30a6\u30f3\u306e\u5404\u8981\u7d20\u3092HTML\u306b\u5909\u63db\u3057\u3066\u3044\u307e\u3059\u3002\u6b63\u898f\u8868\u73fe\u3092\u52b9\u679c\u7684\u306b\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u8907\u96d1\u306a\u5909\u63db\u30ed\u30b8\u30c3\u30af\u3092\u7c21\u6f54\u306b\u8868\u73fe\u3067\u304d\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n \u6700\u5f8c\u306b\u3001\u4e0d\u7d71\u4e00\u306a\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306e\u9867\u5ba2\u30c7\u30fc\u30bf\u3092\u6a19\u6e96\u5316\u3059\u308b\u4f8b\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n \u3053\u306e\u4f8b\u3067\u306f\u3001gsub\u3092\u4f7f\u7528\u3057\u3066\u540d\u524d\u3001\u96fb\u8a71\u756a\u53f7\u3001\u4f4f\u6240\u306e\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3092\u7d71\u4e00\u3057\u3066\u3044\u307e\u3059\u3002\u8907\u6570\u306egsub\u547c\u3073\u51fa\u3057\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u8907\u96d1\u306a\u30c7\u30fc\u30bf\u30af\u30ec\u30f3\u30b8\u30f3\u30b0\u51e6\u7406\u3092\u5b9f\u73fe\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n \u3053\u308c\u3089\u306e\u5b9f\u8df5\u7684\u306a\u4f8b\u3092\u901a\u3058\u3066\u3001gsub\u306e\u5f37\u529b\u3055\u3068\u67d4\u8edf\u6027\u304c\u7406\u89e3\u3067\u304d\u305f\u304b\u3068\u601d\u3044\u307e\u3059\u3002 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gsub\u306e\u57fa\u672c\u304b\u3089\u5b9f\u8df5\u7684\u306a\u5fdc\u7528\u307e\u3067\u5b66\u3093\u3067\u304d\u307e\u3057\u305f\u304c\u3001\u771f\u306egsub\u30de\u30b9\u30bf\u30fc\u306b\u306a\u308b\u305f\u3081\u306b\u306f\u3001\u3055\u3089\u306b\u4e00\u6b69\u8e0f\u307f\u8fbc\u3093\u3060\u77e5\u8b58\u3068\u6280\u8853\u304c\u5fc5\u8981\u3067\u3059\u3002 \u30e1\u30bf\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306f\u3001\u30b3\u30fc\u30c9\u3092\u52d5\u7684\u306b\u751f\u6210\u3057\u305f\u308a\u64cd\u4f5c\u3057\u305f\u308a\u3059\u308b\u5f37\u529b\u306a\u6280\u8853\u3067\u3059\u3002 \u4f8b\u3048\u3070\u3001\u30af\u30e9\u30b9\u306e\u30e1\u30bd\u30c3\u30c9\u540d\u3092\u52d5\u7684\u306b\u751f\u6210\u3059\u308b\u969b\u306bgsub\u3092\u6d3b\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n \u3053\u306e\u4f8b\u3067\u306f\u3001gsub\u3092\u4f7f\u7528\u3057\u3066\u7a7a\u767d\u6587\u5b57\u3092\u30a2\u30f3\u30c0\u30fc\u30b9\u30b3\u30a2\u306b\u7f6e\u63db\u3057\u3001\u5c0f\u6587\u5b57\u5316\u3059\u308b\u3053\u3068\u3067\u3001\u6709\u52b9\u306a\u30e1\u30bd\u30c3\u30c9\u540d\u3092\u52d5\u7684\u306b\u751f\u6210\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n \u307e\u305f\u3001DSL\uff08\u30c9\u30e1\u30a4\u30f3\u7279\u5316\u8a00\u8a9e\uff09\u306e\u4f5c\u6210\u306b\u304a\u3044\u3066\u3082\u3001gsub\u306f\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002<\/p>\n\n\n\n \u3053\u306e\u4f8b\u3067\u306f\u3001gsub\u3092\u4f7f\u7528\u3057\u3066\u7c21\u5358\u306aDSL\u69cb\u6587\u3092Ruby\u30b3\u30fc\u30c9\u306b\u5909\u63db\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n gsub\u306e\u5185\u90e8\u52d5\u4f5c\u3092\u6df1\u304f\u7406\u89e3\u3059\u308b\u305f\u3081\u306e\u7d20\u6674\u3089\u3057\u3044\u65b9\u6cd5\u306f\u3001\u81ea\u5206\u3067\u7c21\u6613\u7248\u306egsub\u30e1\u30bd\u30c3\u30c9\u3092\u5b9f\u88c5\u3057\u3066\u307f\u308b\u3053\u3068\u3067\u3059\u3002
\u305d\u306e\u4e2d\u3067\u3082\u3001gsub<\/code>\u30e1\u30bd\u30c3\u30c9\u306f\u7279\u306b\u5f37\u529b\u3067\u6c4e\u7528\u6027\u306e\u9ad8\u3044\u30c4\u30fc\u30eb\u3068\u3057\u3066\u77e5\u3089\u308c\u3066\u3044\u307e\u3059\u3002
\u672c\u8a18\u4e8b\u3067\u306f\u3001\u306a\u305cRuby\u30d7\u30ed\u30b0\u30e9\u30de\u30fc\u304cgsub\u30e1\u30bd\u30c3\u30c9\u3092\u7fd2\u5f97\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u306e\u304b\u3001\u305d\u3057\u3066\u3053\u306e\u30e1\u30bd\u30c3\u30c9\u304c\u3069\u308c\u307b\u3069\u6709\u7528\u3067\u3042\u308b\u304b\u3092\u8a73\u3057\u304f\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n\u6587\u5b57\u5217\u64cd\u4f5c\u306e\u91cd\u8981\u6027\u3068gsub\u306e\u4f4d\u7f6e\u3065\u3051<\/h3>\n\n\n\n
\n
\u305d\u306e\u4e2d\u3067\u3082gsub<\/code>\u30e1\u30bd\u30c3\u30c9\u306f\u3001\u4ee5\u4e0b\u306e\u7406\u7531\u304b\u3089\u7279\u306b\u91cd\u8981\u306a\u4f4d\u7f6e\u3092\u5360\u3081\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\ngsub<\/code>\u30e1\u30bd\u30c3\u30c9\u306e4\u3064\u306e\u91cd\u8981\u70b9<\/div>\n
\u672c\u8a18\u4e8b\u3067\u5b66\u3079\u308b\u3053\u3068\uff1a\u57fa\u790e\u304b\u3089\u5fdc\u7528\u307e\u3067<\/h3>\n\n\n\n
\n
\u52b9\u7387\u7684\u306a\u6587\u5b57\u5217\u64cd\u4f5c\u306f\u3001\u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u3092\u9ad8\u3081\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5411\u4e0a\u3055\u305b\u3001\u3088\u308a\u6d17\u7df4\u3055\u308c\u305f\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u66f8\u304f\u305f\u3081\u306e\u57fa\u790e\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<\/i>2. gsub\u30e1\u30bd\u30c3\u30c9\u306e\u57fa\u672c\uff1a\u6b63\u3057\u3044\u4f7f\u3044\u65b9\u3092\u62bc\u3055\u3048\u3088\u3046<\/span><\/span><\/h2>\n\n\n\n
\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001gsub\u306e\u57fa\u672c\u69cb\u6587\u304b\u3089\u5fdc\u7528\u7684\u306a\u4f7f\u3044\u65b9\u307e\u3067\u3001\u6bb5\u968e\u7684\u306b\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\ngsub\u306e\u57fa\u672c\u69cb\u6587\u3068\u52d5\u4f5c\u539f\u7406<\/h3>\n\n\n\n
# \u5f62\u5f0f1: \u30d1\u30bf\u30fc\u30f3\u3068\u7f6e\u63db\u6587\u5b57\u5217\u3092\u6307\u5b9a\nstring.gsub(pattern, replacement)\n\n# \u5f62\u5f0f2: \u30d1\u30bf\u30fc\u30f3\u3068\u30d6\u30ed\u30c3\u30af\u3092\u6307\u5b9a\nstring.gsub(pattern) { |match| block }<\/pre>\n\n\n\ngsub<\/code>\u306e\u52d5\u4f5c\u539f\u7406<\/div><\/div>\n
# \u57fa\u672c\u7684\u306a\u4f7f\u7528\u4f8b\ntext = \"Hello, world!\"\nnew_text = text.gsub(\"o\", \"0\")\nputs new_text # \u51fa\u529b: Hell0, w0rld!\n\n# \u30d6\u30ed\u30c3\u30af\u3092\u4f7f\u7528\u3057\u305f\u4f8b\ntext = \"ruby is fun\"\nnew_text = text.gsub(\/\\w+\/) { |word| word.capitalize }\nputs new_text # \u51fa\u529b: Ruby Is Fun<\/pre>\n\n\n\n
\u5143\u306e\u6587\u5b57\u5217\u3092\u76f4\u63a5\u5909\u66f4\u3057\u305f\u3044\u5834\u5408\u306f\u3001gsub!\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n\n\n\n\u6b63\u898f\u8868\u73fe\u3068\u306e\u7d44\u307f\u5408\u308f\u305b\u65b9<\/h3>\n\n\n\n
\u57fa\u672c\u7684\u306a\u30d1\u30bf\u30fc\u30f3<\/h4>\n\n\n\n
# \u6587\u5b57\u5217\u306e\u5148\u982d(^)\u3068\u672b\u5c3e($)\u306b\u30de\u30c3\u30c1\n \"hello\".gsub(\/^h\/, \"H\") # \"Hello\"\n \"hello\".gsub(\/o$\/, \"O\") # \"hellO\"<\/pre>\n\n\n\n
\u6587\u5b57\u30af\u30e9\u30b9<\/h4>\n\n\n\n
# \u6570\u5b57(\\d)\u3092'X'\u306b\u7f6e\u63db\n \"abc123def\".gsub(\/\\d\/, \"X\") # \"abcXXXdef\"<\/pre>\n\n\n\n
\u30b0\u30eb\u30fc\u30d7\u5316\u3068\u5f8c\u65b9\u53c2\u7167<\/h4>\n\n\n\n
# \u540d\u524d\u306e\u9806\u5e8f\u3092\u5165\u308c\u66ff\u3048\u308b\n \"John Doe\".gsub(\/(\\w+) (\\w+)\/, '\\2, \\1') # \"Doe, John\"<\/pre>\n\n\n\n
\u5148\u8aad\u307f\u30fb\u5f8c\u8aad\u307f<\/h4>\n\n\n\n
# \u6570\u5b57\u306e\u524d\u306b\u3042\u308b\u6587\u5b57\u3092\u5927\u6587\u5b57\u306b\n \"a1 b2 c3\".gsub(\/(?=\\d)\/, '\\0'.upcase) # \"A1 B2 C3\"<\/pre>\n\n\n\n
\u3088\u304f\u3042\u308b\u9593\u9055\u3044\u3068\u6ce8\u610f\u70b9<\/h3>\n\n\n\n
\u7834\u58ca\u7684\u30e1\u30bd\u30c3\u30c9\u3068\u975e\u7834\u58ca\u7684\u30e1\u30bd\u30c3\u30c9\u306e\u6df7\u540c<\/h4>\n\n\n\n
str = \"hello\"\n str.gsub(\"l\", \"L\") # \u3053\u306e\u64cd\u4f5c\u306f str \u306b\u306f\u5f71\u97ff\u3057\u306a\u3044\n puts str # \u51fa\u529b: \"hello\"\n\n str.gsub!(\"l\", \"L\") # \u3053\u306e\u64cd\u4f5c\u306f str \u3092\u76f4\u63a5\u5909\u66f4\u3059\u308b\n puts str # \u51fa\u529b: \"heLLo\"<\/pre>\n\n\n\n
\u5927\u6587\u5b57\u5c0f\u6587\u5b57\u306e\u533a\u5225<\/h4>\n\n\n\n
# i\u30aa\u30d7\u30b7\u30e7\u30f3\u3067\u5927\u6587\u5b57\u5c0f\u6587\u5b57\u3092\u533a\u5225\u3057\u306a\u3044\n \"Hello\".gsub(\/h\/, \"J\") # \"Hello\" (\u5909\u5316\u306a\u3057)\n \"Hello\".gsub(\/h\/i, \"J\") # \"Jello\"<\/pre>\n\n\n\n
\u30a8\u30b9\u30b1\u30fc\u30d7\u304c\u5fc5\u8981\u306a\u6587\u5b57<\/h4>\n\n\n\n
# \u30c9\u30c3\u30c8(.)\u306f\u7279\u6b8a\u6587\u5b57\u306a\u306e\u3067\u30a8\u30b9\u30b1\u30fc\u30d7\u304c\u5fc5\u8981\n \"a.b.c\".gsub(\".\", \",\") # \",,,,,,\" (\u610f\u56f3\u3057\u306a\u3044\u7d50\u679c)\n \"a.b.c\".gsub(\/\\.\/, \",\") # \"a,b,c\" (\u610f\u56f3\u3057\u305f\u7d50\u679c)<\/pre>\n\n\n\n
\u8caa\u6b32\u306a\u30de\u30c3\u30c1\u30f3\u30b0vs\u6700\u5c0f\u30de\u30c3\u30c1\u30f3\u30b0<\/h4>\n\n\n\n
# \u8caa\u6b32\u30de\u30c3\u30c1\u30f3\u30b0\n \"<p>First<\/p><p>Second<\/p>\".gsub(\/<p>.*<\\\/p>\/, \"\") # \"\" (\u5168\u3066\u524a\u9664)\n\n # \u6700\u5c0f\u30de\u30c3\u30c1\u30f3\u30b0\n \"<p>First<\/p><p>Second<\/p>\".gsub(\/<p>.*?<\\\/p>\/, \"\") # \"\" (\u500b\u5225\u306b\u524a\u9664)<\/pre>\n\n\n\n
\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3078\u306e\u914d\u616e<\/h4>\n\n\n\n
\n
tr<\/code>\u30e1\u30bd\u30c3\u30c9\u306e\u65b9\u304c\u9ad8\u901f\u306a\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<\/i>3. gsub\u306e\u5b9f\u8df5\u7684\u306a\u4f7f\u7528\u4f8b\uff1a\u73fe\u5834\u3067\u5f79\u7acb\u3064\u30c6\u30af\u30cb\u30c3\u30af<\/span><\/span><\/h2>\n\n\n\n
\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u5b9f\u52d9\u3067\u3088\u304f\u906d\u9047\u3059\u308b\u554f\u984c\u306b\u5bfe\u3059\u308bgsub\u306e\u89e3\u6c7a\u7b56\u3068\u3001\u73fe\u5834\u3067\u5f79\u7acb\u3064\u30c6\u30af\u30cb\u30c3\u30af\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n\u8907\u6570\u306e\u6587\u5b57\u5217\u3092\u4e00\u62ec\u3067\u7f6e\u63db\u3059\u308b\u65b9\u6cd5<\/h3>\n\n\n\n
\u30cf\u30c3\u30b7\u30e5\u3092\u4f7f\u7528\u3057\u305f\u8907\u6570\u30d1\u30bf\u30fc\u30f3\u306e\u7f6e\u63db<\/h4>\n\n\n\n
text = \"The quick brown fox jumps over the lazy dog\"\nreplacements = {\n \"quick\" => \"slow\",\n \"brown\" => \"green\",\n \"lazy\" => \"energetic\"\n}\n\nresult = text.gsub(\/\\b(?:#{replacements.keys.join('|')})\\b\/, replacements)\nputs result\n# \u51fa\u529b: The slow green fox jumps over the energetic dog<\/pre>\n\n\n\n\u6b63\u898f\u8868\u73fe\u306e\u9078\u8a00\uff08A or B or C\u306a\u3069\uff09\u3092\u4f7f\u7528\u3057\u305f\u7f6e\u63db<\/h4>\n\n\n\n
text = \"apple banana cherry\"\nresult = text.gsub(\/apple|banana\/, \"fruit\")\nputs result\n# \u51fa\u529b: fruit fruit cherry<\/pre>\n\n\n\n
\u6761\u4ef6\u5206\u5c90\u3092\u7528\u3044\u305f\u9ad8\u5ea6\u306a\u7f6e\u63db\u51e6\u7406<\/h3>\n\n\n\n
\u4e09\u9805\u6f14\u7b97\u5b50\u3092\u4f7f\u7528\u3057\u305f\u6761\u4ef6\u4ed8\u304d\u7f6e\u63db<\/h4>\n\n\n\n
text = \"The price is $10 for item A and \u20ac20 for item B\"\nresult = text.gsub(\/(\\$|\\\u20ac)(\\d+)\/) do |match|\n currency = $1\n amount = $2.to_i\n new_amount = currency == \"$\" ? amount * 1.1 : amount * 0.9\n \"#{currency}#{new_amount.round(2)}\"\nend\nputs result\n# \u51fa\u529b: The price is $11.0 for item A and \u20ac18.0 for item B<\/pre>\n\n\n\ncase\u6587\u3092\u4f7f\u7528\u3057\u305f\u8907\u96d1\u306a\u6761\u4ef6\u5206\u5c90:<\/h4>\n\n\n\n
text = \"apple:fruit banana:fruit cherry:fruit carrot:vegetable\"\nresult = text.gsub(\/\\w+:(fruit|vegetable)\/) do |match|\n item, category = match.split(':')\n case category\n when 'fruit'\n \"#{item.capitalize} (Sweet)\"\n when 'vegetable'\n \"#{item.capitalize} (Healthy)\"\n end\nend\nputs result\n# \u51fa\u529b: Apple (Sweet) Banana (Sweet) Cherry (Sweet) Carrot (Healthy)<\/pre>\n\n\n\n\u30d6\u30ed\u30c3\u30af\u3092\u6d3b\u7528\u3057\u305f\u30c0\u30a4\u30ca\u30df\u30c3\u30af\u306a\u7f6e\u63db<\/h3>\n\n\n\n
\u30de\u30c3\u30c1\u3057\u305f\u90e8\u5206\u306b\u5bfe\u3059\u308b\u52d5\u7684\u306a\u51e6\u7406<\/h4>\n\n\n\n
text = \"The temperature is 20C in Tokyo, 25C in Bangkok, and 15C in Paris.\"\nresult = text.gsub(\/(\\d+)C\/) do |match|\n celsius = $1.to_i\n fahrenheit = (celsius * 9\/5.0 + 32).round(1)\n \"#{celsius}C (#{fahrenheit}F)\"\nend\nputs result\n# \u51fa\u529b: The temperature is 20C (68.0F) in Tokyo, 25C (77.0F) in Bangkok, and 15C (59.0F) in Paris.<\/pre>\n\n\n\n\u5916\u90e8\u5909\u6570\u3084\u72b6\u614b\u3092\u8003\u616e\u3057\u305f\u7f6e\u63db<\/h4>\n\n\n\n
text = \"User1 logged in at 10:00, User2 logged in at 11:30, User1 logged out at 15:45\"\nuser_sessions = Hash.new { |h, k| h[k] = [] }\n\nresult = text.gsub(\/(\\w+) logged (in|out) at (\\d{2}:\\d{2})\/) do |match|\n user, action, time = $1, $2, $3\n user_sessions[user] << { action: action, time: time }\n\n if action == 'out' && user_sessions[user].size >= 2\n login_time = user_sessions[user][-2][:time]\n \"#{user} session: #{login_time} - #{time}\"\n else\n match\n end\nend\n\nputs result\n# \u51fa\u529b: User1 logged in at 10:00, User2 logged in at 11:30, User1 session: 10:00 - 15:45<\/pre>\n\n\n\n\u5b9f\u52d9\u3067\u306e\u5fdc\u7528\u4f8b<\/h3>\n\n\n\n
\u30ed\u30b0\u30c7\u30fc\u30bf\u306e\u6574\u5f62\u3068\u6a19\u6e96\u5316<\/h4>\n\n\n\n
log_entry = \"2023-05-15T14:30:25 [ERROR] Failed to connect to database: timeout\"\nformatted_log = log_entry.gsub(\/^(\\d{4}-\\d{2}-\\d{2})T(\\d{2}:\\d{2}:\\d{2}) \\[(\\w+)\\] (.+)$\/) do |match|\n date, time, level, message = $1, $2, $3, $4\n \"{\\\"date\\\":\\\"#{date}\\\",\\\"time\\\":\\\"#{time}\\\",\\\"level\\\":\\\"#{level}\\\",\\\"message\\\":\\\"#{message}\\\"}\"\nend\nputs formatted_log\n# \u51fa\u529b: {\"date\":\"2023-05-15\",\"time\":\"14:30:25\",\"level\":\"ERROR\",\"message\":\"Failed to connect to database: timeout\"}<\/pre>\n\n\n\nHTML\u3084\u30de\u30fc\u30af\u30c0\u30a6\u30f3\u306e\u89e3\u6790\u3068\u5909\u63db<\/h4>\n\n\n\n
markdown = \"# Title\\n\\n## Subtitle\\n\\nThis is **bold** and *italic* text.\"\nhtml = markdown.gsub(\/^# (.+)$\/, '<h1>\\1<\/h1>')\n .gsub(\/^## (.+)$\/, '<h2>\\1<\/h2>')\n .gsub(\/\\*\\*(.+?)\\*\\*\/, '<strong>\\1<\/strong>')\n .gsub(\/\\*(.+?)\\*\/, '<em>\\1<\/em>')\n .gsub(\/\\n\\n\/, '<br><br>')\nputs html\n# \u51fa\u529b: <h1>Title<\/h1><br><br><h2>Subtitle<\/h2><br><br>This is <strong>bold<\/strong> and <em>italic<\/em> text.<\/pre>\n\n\n\n
\u30c7\u30fc\u30bf\u30af\u30ec\u30f3\u30b8\u30f3\u30b0\u3068\u6b63\u898f\u5316<\/h4>\n\n\n\n
dirty_data = [\"John Doe (123) 456-7890\", \"Jane Smith 987-654-3210\", \"Bob Johnson (555)123-4567\"]\nclean_data = dirty_data.map do |entry|\n entry.gsub(\/[()]\/, '') # \u62ec\u5f27\u3092\u524a\u9664\n .gsub(\/\\s+\/, ' ') # \u9023\u7d9a\u3059\u308b\u7a7a\u767d\u30921\u3064\u306b\n .gsub(\/(\\d{3})-?(\\d{3})-?(\\d{4})\/, '\\1-\\2-\\3') # \u96fb\u8a71\u756a\u53f7\u3092\u7d71\u4e00\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306b\nend\nputs clean_data\n# \u51fa\u529b:\n# [\"John Doe 123-456-7890\", \"Jane Smith 987-654-3210\", \"Bob Johnson 555-123-4567\"]<\/pre>\n\n\n\n
\u9069\u5207\u306b\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u8907\u96d1\u306a\u30c6\u30ad\u30b9\u30c8\u51e6\u7406\u30bf\u30b9\u30af\u3092\u52b9\u7387\u7684\u306b\u89e3\u6c7a\u3067\u304d\u307e\u3059\u3002
\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001gsub\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<\/i>4. \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0\uff1agsub\u3092\u9ad8\u901f\u5316\u3059\u308b\u79d8\u8a23<\/span><\/span><\/h2>\n\n\n\n
gsub\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u7279\u6027\u3092\u7406\u89e3\u3059\u308b<\/h3>\n\n\n\n
gsub<\/code>\u306e\u7279\u6027<\/div><\/div>\n
\u5927\u91cf\u306e\u30c7\u30fc\u30bf\u51e6\u7406\u6642\u306e\u6700\u9069\u5316\u30c6\u30af\u30cb\u30c3\u30af<\/h3>\n\n\n\n
\u6b63\u898f\u8868\u73fe\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u518d\u5229\u7528<\/h4>\n\n\n\n
pattern = \/\\d+\/\nlarge_text = \"... \u5927\u91cf\u306e\u30c6\u30ad\u30b9\u30c8 ...\"\nresult = large_text.gsub(pattern) { |match| match.to_i * 2 }<\/pre>\n\n\n\n\u8907\u6570\u306egsub\u547c\u3073\u51fa\u3057\u306e\u7d71\u5408<\/h4>\n\n\n\n
# \u52b9\u7387\u304c\u60aa\u3044\u65b9\u6cd5\nresult = text.gsub(\/a\/, 'x').gsub(\/b\/, 'y').gsub(\/c\/, 'z')\n\n# \u6700\u9069\u5316\u3055\u308c\u305f\u65b9\u6cd5\nresult = text.gsub(\/[abc]\/, { 'a' => 'x', 'b' => 'y', 'c' => 'z' })<\/pre>\n\n\n\n\u4e26\u5217\u51e6\u7406\u306e\u6d3b\u7528<\/h4>\n\n\n\n
require 'parallel'\n\nlarge_text = \"... \u975e\u5e38\u306b\u5927\u304d\u306a\u30c6\u30ad\u30b9\u30c8 ...\"\nchunks = large_text.scan(\/.{1,1000000}\/) # 1MB\u5358\u4f4d\u3067\u5206\u5272\n\nresult = Parallel.map(chunks) do |chunk|\n chunk.gsub(\/pattern\/, 'replacement')\nend.join<\/pre>\n\n\n\n\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u3092\u6291\u3048\u308b\u30b3\u30c4<\/h3>\n\n\n\n
\u5927\u304d\u306a\u6587\u5b57\u5217\u306e\u5206\u5272\u51e6\u7406<\/h4>\n\n\n\n
File.open('large_file.txt', 'r') do |file|\n file.each_line do |line|\n processed_line = line.gsub(\/pattern\/, 'replacement')\n # \u51e6\u7406\u3055\u308c\u305f\u884c\u3092\u51fa\u529b\u307e\u305f\u306f\u4fdd\u5b58\n end\nend<\/pre>\n\n\n\n\u30a4\u30c6\u30ec\u30fc\u30bf\u306e\u6d3b\u7528<\/h4>\n\n\n\n
def process_text(text)\n text.to_enum(:gsub, \/pattern\/).map do |match|\n # \u51e6\u7406\u3092\u884c\u3044\u3001\u7f6e\u63db\u5f8c\u306e\u6587\u5b57\u5217\u3092\u8fd4\u3059\n end.join\nend<\/pre>\n\n\n\n
to_enum<\/code>\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u5927\u304d\u306a\u4e2d\u9593\u6587\u5b57\u5217\u3092\u751f\u6210\u305b\u305a\u306b\u51e6\u7406\u3092\u884c\u3048\u307e\u3059\u3002<\/p>\n\n\n\n\u5fc5\u8981\u306a\u90e8\u5206\u306e\u307f\u3092\u51e6\u7406\u3059\u308b<\/h4>\n\n\n\n
def extract_and_process(text)\n text.scan(\/important_pattern(.*?)end_pattern\/) do |match|\n processed = match[0].gsub(\/sub_pattern\/, 'replacement')\n # \u51e6\u7406\u3055\u308c\u305f\u90e8\u5206\u3092\u51fa\u529b\u307e\u305f\u306f\u4fdd\u5b58\n end\nend<\/pre>\n\n\n\n
Ruby\u306eBenchmark<\/code>\u30e2\u30b8\u30e5\u30fc\u30eb\u3084memory_profiler<\/code>gem\u306a\u3069\u306e\u30c4\u30fc\u30eb\u3092\u4f7f\u7528\u3057\u3066\u3001\u51e6\u7406\u6642\u9593\u3068\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u3092\u5b9a\u91cf\u7684\u306b\u8a55\u4fa1\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\nrequire 'benchmark'\n\nBenchmark.bm do |x|\n x.report(\"Original:\") { original_gsub_method(large_text) }\n x.report(\"Optimized:\") { optimized_gsub_method(large_text) }\nend<\/pre>\n\n\n\n
\u3053\u308c\u3089\u306e\u6280\u6cd5\u3092\u9069\u5207\u306b\u7d44\u307f\u5408\u308f\u305b\u3001\u5b9f\u969b\u306e\u4f7f\u7528\u74b0\u5883\u3067\u30c6\u30b9\u30c8\u3092\u884c\u3046\u3053\u3068\u3067\u3001gsub\u3092\u7528\u3044\u305f\u52b9\u7387\u7684\u306a\u6587\u5b57\u5217\u51e6\u7406\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<\/i>5. gsub\u3068\u4ed6\u306e\u30e1\u30bd\u30c3\u30c9\u306e\u6bd4\u8f03\uff1a\u72b6\u6cc1\u306b\u5fdc\u3058\u305f\u9069\u5207\u306a\u9078\u629e<\/span><\/span><\/h2>\n\n\n\n
gsub\u306f\u975e\u5e38\u306b\u5f37\u529b\u3067\u6c4e\u7528\u6027\u306e\u9ad8\u3044\u30e1\u30bd\u30c3\u30c9\u3067\u3059\u304c\u3001\u72b6\u6cc1\u306b\u3088\u3063\u3066\u306f\u4ed6\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u9078\u629e\u3059\u308b\u65b9\u304c\u9069\u5207\u306a\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002
\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001gsub\u3068\u4ed6\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u6bd4\u8f03\u3057\u3001\u9069\u5207\u306a\u9078\u629e\u65b9\u6cd5\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\nsub\u3001tr\u3001slice!\u3068\u306e\u4f7f\u3044\u5206\u3051<\/h3>\n\n\n\n
gsub<\/code>\u30e1\u30bd\u30c3\u30c9\u3068\u4f3c\u305f\u52d5\u304d\u3092\u3059\u308b\u30e1\u30bd\u30c3\u30c94\u9078<\/div>\n
\n
# gsub\u306e\u9069\u5207\u306a\u4f7f\u7528\u4f8b\uff1a\u8907\u6570\u56de\u306e\u7f6e\u63db\u3001\u8907\u96d1\u306a\u30d1\u30bf\u30fc\u30f3\ntext = \"The quick brown fox jumps over the lazy dog\"\nresult = text.gsub(\/[aeiou]\/, '*') # \u5168\u3066\u306e\u6bcd\u97f3\u3092'*'\u306b\u7f6e\u63db\nputs result # \"Th* q**ck br*wn f*x j*mps *v*r th* l*zy d*g\"\n\n# sub\u306e\u9069\u5207\u306a\u4f7f\u7528\u4f8b\uff1a\u6700\u521d\u306e1\u56de\u3060\u3051\u7f6e\u63db\ntext = \"Apple and apple pie\"\nresult = text.sub(\"apple\", \"orange\") # \u6700\u521d\u306e\"apple\"\u3060\u3051\u3092\"orange\"\u306b\u7f6e\u63db\nputs result # \"Apple and orange pie\"\n\n# tr\u306e\u9069\u5207\u306a\u4f7f\u7528\u4f8b\uff1a\u5358\u7d14\u306a\u6587\u5b57\u306e\u7f6e\u63db\ntext = \"Hello, World!\"\nresult = text.tr('aeiou', '*') # \u3059\u3079\u3066\u306e\u5c0f\u6587\u5b57\u6bcd\u97f3\u3092'*'\u306b\u7f6e\u63db\nputs result # \"H*ll*, W*rld!\"\n\n# slice!\u306e\u9069\u5207\u306a\u4f7f\u7528\u4f8b\uff1a\u90e8\u5206\u6587\u5b57\u5217\u306e\u62bd\u51fa\u3068\u524a\u9664\ntext = \"Hello, World!\"\nextracted = text.slice!(\/, World\/) # \", World\"\u3092\u62bd\u51fa\u3057\u3066\u524a\u9664\nputs extracted # \", World\"\nputs text # \"Hello!\"<\/pre>\n\n\n\n\u6b63\u898f\u8868\u73fe\u3092\u4f7f\u308f\u306a\u3044\u7f6e\u63db\u65b9\u6cd5\u3068\u306e\u6bd4\u8f03<\/h3>\n\n\n\n
String#[]=<\/code><\/h4>\n\n\n\ntext = \"Hello, World!\"\ntext[7..11] = \"Ruby\"\nputs text # \"Hello, Ruby!\"<\/pre>\n\n\n\n
split + join<\/code><\/h4>\n\n\n\ntext = \"apple,orange,banana\"\nresult = text.split(',').map { |fruit| fruit.capitalize }.join(', ')\nputs result # \"Apple, Orange, Banana\"<\/pre>\n\n\n\nscan + map<\/code><\/h4>\n\n\n\ntext = \"The price is $10, $20, and $30\"\nresult = text.scan(\/\\$\\d+\/).map { |price| price.gsub('$', '') .to_i * 1.1 }\nputs result.inspect # [11.0, 22.0, 33.0]<\/pre>\n\n\n\n\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30d9\u30f3\u30c1\u30de\u30fc\u30af\uff1a\u5404\u30e1\u30bd\u30c3\u30c9\u306e\u5f37\u307f\u3068\u5f31\u307f<\/h3>\n\n\n\n
\u4ee5\u4e0b\u306b\u3001\u7c21\u5358\u306a\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u3068\u305d\u306e\u5206\u6790\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n\n\n\nrequire 'benchmark'\n\ntext = \"a\" * 1_000_000 + \"b\" * 1_000_000\npattern = \"a\"\nreplacement = \"x\"\n\nBenchmark.bm(10) do |x|\n x.report(\"gsub:\") { text.gsub(pattern, replacement) }\n x.report(\"sub:\") { text.sub(pattern, replacement) }\n x.report(\"tr:\") { text.tr(pattern, replacement) }\n x.report(\"slice!:\") { text.dup.slice!(pattern) }\n x.report(\"[]=:\") { t = text.dup; t[0] = replacement; t }\nend<\/pre>\n\n\n\n\u7d50\u679c\uff08\u5b9f\u884c\u74b0\u5883\u306b\u3088\u308a\u7570\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\uff09<\/h4>\n\n\n\n
user system total real\ngsub: 0.150000 0.000000 0.150000 ( 0.156323)\nsub: 0.000000 0.000000 0.000000 ( 0.000036)\ntr: 0.030000 0.000000 0.030000 ( 0.031100)\nslice!: 0.000000 0.000000 0.000000 ( 0.000026)\n[]=: 0.000000 0.000000 0.000000 ( 0.000015)<\/pre>\n\n\n\n
\n
\u5b9f\u969b\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306f\u3001\u30c7\u30fc\u30bf\u306e\u7279\u6027\u3084\u7f6e\u63db\u306e\u8907\u96d1\u3055\u306b\u3088\u3063\u3066\u7d50\u679c\u304c\u5927\u304d\u304f\u5909\u308f\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n\n
\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u3053\u308c\u3089\u306e\u77e5\u8b58\u3092\u6d3b\u304b\u3057\u305f\u5b9f\u52d9\u3067\u306e\u5fdc\u7528\u4f8b\u3092\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<\/i>6. \u5b9f\u52d9\u3067\u306e\u5fdc\u7528\uff1agsub\u3092\u6d3b\u7528\u3057\u305f\u5b9f\u8df5\u7684\u306a\u30b3\u30fc\u30c9\u4f8b<\/span><\/span><\/h2>\n\n\n\n
\u3053\u3053\u3067\u306f\u3001\u30ed\u30b0\u89e3\u6790\u3001\u30c6\u30ad\u30b9\u30c8\u6574\u5f62\u3001\u30c7\u30fc\u30bf\u30af\u30ec\u30f3\u30b8\u30f3\u30b0\u3068\u3044\u30463\u3064\u306e\u5b9f\u8df5\u7684\u306a\u30b7\u30ca\u30ea\u30aa\u3092\u53d6\u308a\u4e0a\u3052\u3001gsub\u3092\u4e2d\u5fc3\u3068\u3057\u305f\u89e3\u6c7a\u7b56\u3092\u63d0\u793a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n\u30ed\u30b0\u89e3\u6790\uff1a\u8907\u96d1\u306a\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u30f3\u30b0\u3068\u7f6e\u63db<\/h3>\n\n\n\n
log_entry = '192.168.1.1 - - [10\/Oct\/2023:13:55:36 +0900] \"GET \/search?q=ruby HTTP\/1.1\" 200 2326'\n\n# \u30ed\u30b0\u30a8\u30f3\u30c8\u30ea\u30fc\u3092\u89e3\u6790\u3057\u3001JSON\u5f62\u5f0f\u306b\u5909\u63db\u3059\u308b\ndef parse_log_entry(entry)\n entry.gsub(\/^(\\S+) .* \\[(.*?)\\] \"(.*?)\" (\\d+) (\\d+)\/) do\n ip, timestamp, request, status, bytes = $1, $2, $3, $4, $5\n method, path, protocol = request.split\n\n # URL\u306e\u30d1\u30b9\u3068\u30af\u30a8\u30ea\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u5206\u96e2\n path, query = path.split('?', 2)\n query_params = query ? query.split('&').map { |param| param.split('=') }.to_h : {}\n\n {\n ip: ip,\n timestamp: Time.strptime(timestamp, '%d\/%b\/%Y:%H:%M:%S %z').iso8601,\n method: method,\n path: path,\n query_params: query_params,\n protocol: protocol,\n status: status.to_i,\n bytes: bytes.to_i\n }.to_json\n end\nend\n\nputs parse_log_entry(log_entry)\n# \u51fa\u529b\u4f8b:\n# {\"ip\":\"192.168.1.1\",\"timestamp\":\"2023-10-10T13:55:36+09:00\",\"method\":\"GET\",\"path\":\"\/search\",\"query_params\":{\"q\":\"ruby\"},\"protocol\":\"HTTP\/1.1\",\"status\":200,\"bytes\":2326}<\/pre>\n\n\n\n
\u6b63\u898f\u8868\u73fe\u3067\u30ed\u30b0\u306e\u5404\u90e8\u5206\u3092\u62bd\u51fa\u3057\u3001\u3055\u3089\u306bURL\u306e\u30d1\u30b9\u3068\u30af\u30a8\u30ea\u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u5206\u96e2\u306b\u3082\u6587\u5b57\u5217\u64cd\u4f5c\u3092\u6d3b\u7528\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n\u30c6\u30ad\u30b9\u30c8\u6574\u5f62\uff1a\u30de\u30fc\u30af\u30c0\u30a6\u30f3\u304b\u3089HTML\u3078\u306e\u5909\u63db<\/h3>\n\n\n\n
markdown_text = <<~MARKDOWN\n # Welcome to Ruby\n\n Ruby is a **dynamic**, _interpreted_ programming language.\n\n ## Features\n\n - Object-oriented\n - Flexible syntax\n - Exception handling\n\n Check out [Ruby's official website](https:\/\/www.ruby-lang.org).\n\n Here's a simple Ruby code:\n puts \"Hello, World!\"\nMARKDOWN\n\ndef markdown_to_html(text)\n html = text.dup\n\n # \u898b\u51fa\u3057\u306e\u5909\u63db\n html.gsub!(\/^(#+)\\s+(.+)$\/) { \"<h#{$1.size}>#{$2}<\/h#{$1.size}>\" }\n\n # \u5f37\u8abf\u3068\u30a4\u30bf\u30ea\u30c3\u30af\u306e\u51e6\u7406\n html.gsub!(\/\\*\\*(.+?)\\*\\*\/, '<strong>\\1<\/strong>')\n html.gsub!(\/\\_(.+?)\\_\/, '<em>\\1<\/em>')\n\n # \u30ea\u30b9\u30c8\u306e\u5909\u63db\n html.gsub!(\/^\\s*-\\s+(.+)$\/, '<li>\\1<\/li>')\n html.gsub!(\/<li>.*<\\\/li>\\n?(<li>.*<\\\/li>\\n?)+\/) { \"<ul>#{$&}<\/ul>\" }\n\n # \u30ea\u30f3\u30af\u306e\u5909\u63db\n html.gsub!(\/\\[(.+?)\\]\\((.+?)\\)\/, '<a href=\"\\2\">\\1<\/a>')\n\n # \u30b3\u30fc\u30c9\u30d6\u30ed\u30c3\u30af\u306e\u51e6\u7406\n html.gsub!(\/```(\\w+)?\\n(.+?)```\\n\/m) do\n lang = $1 ? \" class=\\\"language-#{$1}\\\"\" : \"\"\n \"<pre><code#{lang}>#{$2}<\/code><\/pre>\"\n end\n\n # \u6bb5\u843d\u306e\u51e6\u7406\n html.gsub!(\/^(?!<[hul])(.+)$\/, '<p>\\1<\/p>')\n\n html\nend\n\nputs markdown_to_html(markdown_text)<\/pre>\n\n\n\n\u30c7\u30fc\u30bf\u30af\u30ec\u30f3\u30b8\u30f3\u30b0\uff1a\u4e0d\u8981\u306a\u6587\u5b57\u306e\u9664\u53bb\u3068\u6a19\u6e96\u5316<\/h3>\n\n\n\n
raw_data = [\n \"John DOE, 123-456-7890, 123 Main St., New York\",\n \"JANE smith,987-65-4321,456 Elm St, Los Angeles\",\n \"Bob Johnson, (555) 123-4567, 789 Oak Rd. Chicago\"\n]\n\ndef clean_customer_data(data)\n data.map do |entry|\n name, phone, address = entry.split(',', 3).map(&:strip)\n\n # \u540d\u524d\u306e\u6b63\u898f\u5316\n name = name.gsub(\/(\\w+)\\s+(\\w+)\/) { \"#{$2.capitalize}, #{$1.capitalize}\" }\n\n # \u96fb\u8a71\u756a\u53f7\u306e\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u7d71\u4e00\n phone = phone.gsub(\/\\D\/, '').gsub(\/(\\d{3})(\\d{3})(\\d{4})\/, '(\\1) \\2-\\3')\n\n # \u4f4f\u6240\u306e\u30af\u30ea\u30fc\u30cb\u30f3\u30b0\n address = address.gsub(\/\\s+\/, ' ')\n .gsub(\/(\\w+)\\.\/, '\\1')\n .gsub(\/(\\w+),\\s*(\\w+)$\/, '\\1, \\2')\n\n \"#{name}|#{phone}|#{address}\"\n end\nend\n\ncleaned_data = clean_customer_data(raw_data)\nputs cleaned_data\n# \u51fa\u529b\u4f8b:\n# Doe, John|(123) 456-7890|123 Main St, New York\n# Smith, Jane|(987) 654-3210|456 Elm St, Los Angeles\n# Johnson, Bob|(555) 123-4567|789 Oak Rd, Chicago<\/pre>\n\n\n\n
\u5b9f\u52d9\u3067\u306f\u3001\u3053\u308c\u3089\u306e\u57fa\u672c\u7684\u306a\u30d1\u30bf\u30fc\u30f3\u3092\u7d44\u307f\u5408\u308f\u305b\u305f\u308a\u3001\u62e1\u5f35\u3057\u305f\u308a\u3059\u308b\u3053\u3068\u3067\u3001\u3055\u3089\u306b\u8907\u96d1\u306a\u554f\u984c\u306b\u5bfe\u51e6\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n
\u307e\u305f\u3001\u5927\u91cf\u306e\u30c7\u30fc\u30bf\u3092\u51e6\u7406\u3059\u308b\u969b\u306f\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u3082\u6ce8\u610f\u3092\u6255\u3044\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u524d\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u7d39\u4ecb\u3057\u305f\u6700\u9069\u5316\u30c6\u30af\u30cb\u30c3\u30af\u3092\u9069\u7528\u3059\u308b\u3053\u3068\u3092\u304a\u52e7\u3081\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<\/i>7. gsub\u30de\u30b9\u30bf\u30fc\u3078\u306e\u9053\uff1a\u3055\u3089\u306a\u308b\u9ad8\u307f\u3092\u76ee\u6307\u3059\u305f\u3081\u306b<\/span><\/span><\/h2>\n\n\n\n
\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001gsub\u306e\u9ad8\u5ea6\u306a\u4f7f\u7528\u6cd5\u3084\u3001\u305d\u308c\u3092\u53d6\u308a\u5dfb\u304fRuby\u30a8\u30b3\u30b7\u30b9\u30c6\u30e0\u306b\u3064\u3044\u3066\u63a2\u6c42\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n\u30e1\u30bf\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3068gsub\u306e\u7d44\u307f\u5408\u308f\u305b<\/h3>\n\n\n\n
gsub\u3068\u30e1\u30bf\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u975e\u5e38\u306b\u67d4\u8edf\u3067\u5f37\u529b\u306a\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\nclass DynamicMethods\n def self.create_greeting_method(name)\n define_method(\"greet_#{name.gsub(\/\\s+\/, '_').downcase}\") do\n \"Hello, #{name}!\"\n end\n end\nend\n\nDynamicMethods.create_greeting_method(\"John Doe\")\ninstance = DynamicMethods.new\nputs instance.greet_john_doe # \u51fa\u529b: Hello, John Doe!<\/pre>\n\n\n\nclass SimpleDSL\n def self.parse(code)\n code.gsub(\/(\\w+):\\s*(.+)\/) do\n method_name, args = $1, $2\n \"self.#{method_name}(#{args})\"\n end\n end\n\n def self.execute(code)\n eval(parse(code))\n end\n\n def self.print(message)\n puts \"Printing: #{message}\"\n end\n\n def self.calculate(expression)\n puts \"Result: #{eval(expression)}\"\n end\nend\n\nSimpleDSL.execute(<<-DSL)\n print: Hello, DSL!\n calculate: 2 + 2 * 3\nDSL\n# \u51fa\u529b:\n# Printing: Hello, DSL!\n# Result: 8<\/pre>\n\n\n\n\u81ea\u4f5c\u306egsub\u30e1\u30bd\u30c3\u30c9\u3092\u4f5c\u6210\u3059\u308b\u6311\u6226<\/h3>\n\n\n\n