{"id":38641,"date":"2024-11-19T05:59:32","date_gmt":"2024-11-19T05:59:32","guid":{"rendered":"https:\/\/www.railscarma.com\/?p=38641"},"modified":"2024-11-19T06:04:30","modified_gmt":"2024-11-19T06:04:30","slug":"ruby%e3%82%92%e4%bd%bf%e3%81%84%e3%81%93%e3%81%aa%e3%81%99-heredocs-%e8%a4%87%e6%95%b0%e8%a1%8c%e3%81%ae%e6%96%87%e5%ad%97%e5%88%97%e3%81%a7%e3%82%b3%e3%83%bc%e3%83%89%e3%82%92%e5%8d%98%e7%b4%94","status":"publish","type":"post","link":"https:\/\/www.railscarma.com\/ja\/%e3%83%96%e3%83%ad%e3%82%b0\/ruby%e3%82%92%e4%bd%bf%e3%81%84%e3%81%93%e3%81%aa%e3%81%99-heredocs-%e8%a4%87%e6%95%b0%e8%a1%8c%e3%81%ae%e6%96%87%e5%ad%97%e5%88%97%e3%81%a7%e3%82%b3%e3%83%bc%e3%83%89%e3%82%92%e5%8d%98%e7%b4%94\/","title":{"rendered":"Ruby Heredocs\u3092\u30de\u30b9\u30bf\u30fc\u3059\u308b\uff1a\u8907\u6570\u884c\u306e\u6587\u5b57\u5217\u3067\u30b3\u30fc\u30c9\u3092\u7c21\u7d20\u5316\u3059\u308b"},"content":{"rendered":"
\n\t\t\t\t\t\t
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Ruby Heredocs \u306f\u3001\u8907\u6570\u884c\u306e\u6587\u5b57\u5217\u3092\u6271\u3046\u305f\u3081\u306e\u30a8\u30ec\u30ac\u30f3\u30c8\u306a\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u3092\u63d0\u4f9b\u3057\u3001\u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u3068\u7ba1\u7406\u3092\u7c21\u7d20\u5316\u3057\u307e\u3059\u3002\u52d5\u7684\u306a\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u306e\u4f5c\u6210\u3001SQL\u30af\u30a8\u30ea\u306e\u8a18\u8ff0\u3001\u3042\u308b\u3044\u306f\u5927\u304d\u306a\u30c6\u30ad\u30b9\u30c8\u30fb\u30d6\u30ed\u30c3\u30af\u306e\u751f\u6210\u306e\u3044\u305a\u308c\u306b\u304a\u3044\u3066\u3082\u3001Heredocs\u3092\u4f7f\u3044\u3053\u306a\u3059\u3053\u3068\u3067\u3001\u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002 <\/span>\u30eb\u30d3\u30fc\u30fb\u30d8\u30ec\u30c9\u30c3\u30af\u30b9<\/b> \u306f\u3001\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u52b9\u7387\u3092\u5927\u5e45\u306b\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/span><\/p>\n

<\/p>\n

Ruby\u306eHeredoc\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f<\/b><\/h2>\n

\u30d8\u30ec\u30c9\u30c3\u30af\u3068\u306f\u3001\"\u3053\u3061\u3089\u306e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8<\/a>Ruby\u306e\u69cb\u6587\u3067\u3001\u8907\u6570\u884c\u306e\u6587\u5b57\u5217\u3092\u5b9a\u7fa9\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002\u6587\u5b57\u5217\u3092\u9023\u7d50\u3057\u305f\u308a\u3001\u9762\u5012\u306a\u69cb\u6587\u3092\u4f7f\u3046\u4ee3\u308f\u308a\u306b\u3001Heredocs\u306f\u5927\u304d\u306a\u30c6\u30ad\u30b9\u30c8\u30d6\u30ed\u30c3\u30af\u3092\u57cb\u3081\u8fbc\u3080\u305f\u3081\u306e\u30af\u30ea\u30fc\u30f3\u3067\u8aad\u307f\u3084\u3059\u3044\u65b9\u6cd5\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/span><\/p>\n

\u57fa\u672c\u7684\u306a\u4f8b\u3092\u6319\u3052\u3088\u3046\uff1a<\/span><\/p>\n

\u30c6\u30ad\u30b9\u30c8 = <<HEREDOC
<\/span>\u3053\u308c\u306f\u8907\u6570\u884c\u306e\u6587\u5b57\u5217\u3067\u3042\u308b\u3002
<\/span>\u66f8\u5f0f\u304c\u4fdd\u6301\u3055\u308c\u3001\u8aad\u307f\u3084\u3059\u3044\u3002
<\/span>\u30d8\u30ec\u30c9\u30c3\u30af
<\/span>\u30c6\u30ad\u30b9\u30c8\u3092\u7f6e\u304f<\/span><\/pre>\n
<\/p>\n
\u306a\u305cHeredocs\u3092\u4f7f\u3046\u306e\u304b\uff1f<\/b><\/h2>\n
    \n
  1. \u8aad\u307f\u3084\u3059\u3055\u306e\u5411\u4e0a\uff1a<\/b>
    <\/b>Heredoc\u306f\u30c6\u30ad\u30b9\u30c8\u306e\u69cb\u9020\u3092\u7dad\u6301\u3057\u3001\u51fa\u529b\u3092\u7c21\u5358\u306b\u8996\u899a\u5316\u3067\u304d\u308b\u3002<\/span><\/li>\n
  2. \u30c0\u30a4\u30ca\u30df\u30c3\u30af\u306a\u30b3\u30f3\u30c6\u30f3\u30c4\uff1a<\/b>
    <\/b>\u6587\u5b57\u5217\u306e\u88dc\u9593\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u308b\u306e\u3067\u3001\u5909\u6570\u3092\u30b7\u30fc\u30e0\u30ec\u30b9\u306b\u57cb\u3081\u8fbc\u3080\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/span><\/li>\n
  3. \u9577\u6587\u306b\u4fbf\u5229\uff1a<\/b>
    <\/b>\u8907\u6570\u884c\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u5fc5\u8981\u3068\u3059\u308b\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3001\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3001\u30b9\u30af\u30ea\u30d7\u30c8\u306b\u6700\u9069\u3067\u3059\u3002<\/span><\/li>\n<\/ol>\n
    Heredoc\u69cb\u6587\u306e\u57fa\u672c<\/b><\/h2>\n
    \u30d8\u30ec\u30c9\u30c3\u30af\u30b9\u306f\u6b21\u306e\u3088\u3046\u306b\u59cb\u307e\u308b\u3002 <\/span><<<\/span> \u306e\u5f8c\u306b\u8b58\u5225\u5b50\u304c\u7d9a\u304f\u3002\u6700\u5f8c\u306e\u8b58\u5225\u5b50\u306f\u3001\u6700\u521d\u306e\u8b58\u5225\u5b50\u3068\u4e00\u81f4\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002<\/span><\/p>\n
    \u6587\u5b57\u5217\u88dc\u9593\u306b\u3088\u308b\u4f8b\uff1a<\/span><\/p>\n
    name = \"Ruby\"
    <\/span>\u30c6\u30ad\u30b9\u30c8 = <<GREETING
    <\/span>\u3053\u3093\u306b\u3061\u306f\u3001#{\u540d\u524d}\u3055\u3093\uff01
    <\/span>\u30d8\u30ec\u30c9\u30c3\u30af\u30b9\u306e\u4e16\u754c\u3078\u3088\u3046\u3053\u305d\u3002
    <\/span>\u3054\u6328\u62f6
    <\/span>\u30c6\u30ad\u30b9\u30c8\u3092\u7f6e\u304f<\/span><\/pre>\n
    <\/p>\n
    Heredocs\u3068\u4ed6\u306e\u6587\u5b57\u5217\u30e1\u30bd\u30c3\u30c9\u306e\u6bd4\u8f03<\/b><\/h2>\n\n\n\n\n\n\n
    \n
    \u7279\u5fb4<\/b><\/p>\n<\/td>\n
    		\n
    \u30d8\u30ec\u30c9\u30c3\u30af\u30b9<\/b><\/p>\n<\/td>\n
    		\n
    \u30c0\u30d6\u30eb\u30af\u30a9\u30fc\u30c8\u306e\u5f26\u697d\u5668<\/b><\/p>\n<\/td>\n
    		\n
    \u9023\u7d50<\/b><\/p>\n<\/td>\n<\/tr>\n
    \n
    \u30de\u30eb\u30c1\u30e9\u30a4\u30f3\u30fb\u30b5\u30dd\u30fc\u30c8<\/span><\/p>\n<\/td>\n
    		\n
    \u7d20\u6674\u3089\u3057\u3044<\/span><\/p>\n<\/td>\n
    		\n
    \u4e2d\u7a0b\u5ea6\uff08\u5fc5\u8981 <\/span>\\n<\/span>)<\/span><\/p>\n<\/td>\n
    		\n
    \u30b3\u30f3\u30d7\u30ec\u30c3\u30af\u30b9<\/span><\/p>\n<\/td>\n<\/tr>\n
    \n
    \u8aad\u307f\u3084\u3059\u3055<\/span><\/p>\n<\/td>\n
    		\n
    \u9ad8\u3044<\/span><\/p>\n<\/td>\n
    		\n
    \u4f4e\u3044<\/span><\/p>\n<\/td>\n
    		\n
    \u4f4e\u3044<\/span><\/p>\n<\/td>\n<\/tr>\n
    \n
    \u6587\u5b57\u5217\u88dc\u9593<\/span><\/p>\n<\/td>\n
    		\n
    \u30b5\u30dd\u30fc\u30c8<\/span><\/p>\n<\/td>\n
    		\n
    \u30b5\u30dd\u30fc\u30c8<\/span><\/p>\n<\/td>\n
    		\n
    \u5bfe\u5fdc\uff08\u500b\u5225\uff09<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
    Ruby Heredocs\u306e\u9ad8\u5ea6\u306a\u6a5f\u80fd<\/b><\/h2>\n
    <\/p>\n
    \u30a4\u30f3\u30c7\u30f3\u30c8\u51e6\u7406<\/b>
    <\/b>\u4e0d\u8981\u306a\u30b9\u30da\u30fc\u30b9\u3092\u907f\u3051\u308b\u305f\u3081\u306b\u3001Ruby \u3067\u306f <\/span><<-<\/span> \u307e\u305f\u306f <\/span><<~<\/span> \u30a4\u30f3\u30c7\u30f3\u30c8\u3055\u308c\u305f\u30d8\u30ec\u30c9\u30c3\u30af\u7528\u3002<\/span>
    <\/span><\/p>\n
    \u30c6\u30ad\u30b9\u30c8 = <<~HEREDOC
    <\/span>  \u3053\u308c\u306f\u30a4\u30f3\u30c7\u30f3\u30c8\u30fb\u30d8\u30ec\u30c9\u30c3\u30af\u3067\u3042\u308b\u3002
    <\/span>  \u5148\u982d\u306e\u30b9\u30da\u30fc\u30b9\u306f\u53d6\u308a\u9664\u304b\u308c\u308b\u3002
    <\/span>\u30d8\u30ec\u30c9\u30c3\u30af
    <\/span>\u30c6\u30ad\u30b9\u30c8\u3092\u7f6e\u304f<\/span><\/pre>\n
    <\/p>\n
    \u7279\u6b8a\u6587\u5b57\u306e\u57cb\u3081\u8fbc\u307f<\/b>
    <\/b>Heredocs\u306f\u7279\u6b8a\u6587\u5b57\u3084\u66f8\u5f0f\u3092\u30a8\u30b9\u30b1\u30fc\u30d7\u305b\u305a\u306b\u6271\u3046\u3053\u3068\u304c\u3067\u304d\u308b\uff1a<\/span>
    <\/span>
    <\/span><\/p>\n
    \u30c6\u30ad\u30b9\u30c8 = <<SPECIAL
    <\/span>\u5f15\u7528\u7b26\u300d\u3084\u300c\u30a2\u30dd\u30b9\u30c8\u30ed\u30d5\u30a3\u300d\u306e\u3088\u3046\u306a\u7279\u6b8a\u6587\u5b57\u3082\u30b7\u30fc\u30e0\u30ec\u30b9\u306b\u6a5f\u80fd\u3059\u308b\u3002
    <\/span>\u30b9\u30da\u30b7\u30e3\u30eb<\/span><\/pre>\n
    <\/p>\n
    \u30c1\u30a7\u30fc\u30f3\u30fb\u30e1\u30bd\u30c3\u30c9<\/b>
    <\/b>Heredocs\u306f\u52d5\u7684\u30b3\u30f3\u30c6\u30f3\u30c4\u4f5c\u6210\u306e\u305f\u3081\u306e\u30e1\u30bd\u30c3\u30c9\u30c1\u30a7\u30a4\u30cb\u30f3\u30b0\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u308b\uff1a<\/span>
    <\/span><\/p>\n
    \u30c6\u30ad\u30b9\u30c8 = <<DATA.upcase.strip
    <\/span>    \u3053\u306e\u30c6\u30ad\u30b9\u30c8\u306f\u5909\u63db\u3055\u308c\u308b\u3002
    <\/span>\u30c7\u30fc\u30bf
    <\/span>\u30c6\u30ad\u30b9\u30c8\u3092\u7f6e\u304f<\/span><\/pre>\n
    <\/p>\n
    Ruby Heredocs\u306e\u4e00\u822c\u7684\u306a\u4f7f\u7528\u4f8b<\/b><\/h2>\n
    <\/p>\n
    HTML\u307e\u305f\u306f\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u306e\u751f\u6210<\/b>
    <\/span><\/p>\n
    html = <<HTML
    <\/span><html>
    <\/span>  Ruby Heredoc<\/title><br><\/span><span style=\"font-weight: 400;\">  <body><h1>\u3088\u3046\u3053\u305d\uff01<\/h1><\/body><br><\/span><span style=\"font-weight: 400;\"><\/html><br><\/span><span style=\"font-weight: 400;\">HTML<\/span><\/pre>\n<p><\/p>\n<p><b>SQL\u30af\u30a8\u30ea\u3092\u66f8\u304f<\/b><b><br><\/b><span style=\"font-weight: 400;\"><br><\/span><\/p>\n<pre><span style=\"font-weight: 400;\">\u30af\u30a8\u30ea\u30fc = <<SQL<br><\/span><span style=\"font-weight: 400;\">SELECT * FROM users<br><\/span><span style=\"font-weight: 400;\">WHERE age > 30\uff1b<br><\/span><span style=\"font-weight: 400;\">SQL<\/span><\/pre>\n<p><\/p>\n<p><b>\u30e1\u30fc\u30eb\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u306e\u4f5c\u6210<\/b><\/p>\n<pre><pre style=\"font-size: 16px; font-style: normal; font-weight: 400;\"><span style=\"font-size: 16px; font-weight: 400;\">email_body = <<E\u30e1\u30fc\u30eb<br><\/span><span style=\"font-size: 16px; font-weight: 400;\">#{\u53d7\u4fe1\u8005\u540d}\u69d8\u3001\n<\/span>\u3054\u53c2\u52a0\u3042\u308a\u304c\u3068\u3046\u3054\u3056\u3044\u307e\u3057\u305f\uff01\nE\u30e1\u30fc\u30eb<\/pre>\n<p><span style=\"font-weight: 400;\"><\/span><\/p>\n<\/pre>\n<h2><b>Heredocs\u5229\u7528\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>\u660e\u78ba\u306a\u8b58\u5225\u5b50\u3092\u4f7f\u7528\u3059\u308b\uff1a<\/b><span style=\"font-weight: 400;\"> \u30aa\u30fc\u30d7\u30cb\u30f3\u30b0\u3068\u30af\u30ed\u30fc\u30b8\u30f3\u30b0\u306e\u8b58\u5225\u5b50\u304c\u8a18\u8ff0\u7684\u3067\u3042\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u3002<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>\u30ec\u30d0\u30ec\u30c3\u30b8\u30fb\u30a4\u30f3\u30c7\u30f3\u30c8\uff1a<\/b><span style=\"font-weight: 400;\"> \u7528\u9014 <\/span><span style=\"font-weight: 400;\"><<~<\/span><span style=\"font-weight: 400;\"> \u3092\u4f7f\u7528\u3057\u3066\u3001\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u3092\u7dad\u6301\u3057\u3001\u7a7a\u767d\u306e\u554f\u984c\u3092\u56de\u907f\u3059\u308b\u3002<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>\u4f7f\u7528\u4f8b\u3092\u5236\u9650\u3059\u308b\uff1a<\/b><span style=\"font-weight: 400;\"> \u30b3\u30fc\u30c9\u30d9\u30fc\u30b9\u3092\u30af\u30ea\u30fc\u30f3\u306b\u4fdd\u3064\u305f\u3081\u306b\u3001\u5927\u304d\u306a\u30c6\u30ad\u30b9\u30c8\u30d6\u30ed\u30c3\u30af\u3084\u69cb\u9020\u5316\u3055\u308c\u305f\u30c6\u30ad\u30b9\u30c8\u30d6\u30ed\u30c3\u30af\u306e\u305f\u3081\u306bHeredocs\u3092\u4e88\u7d04\u3059\u308b\u3002<\/span><\/li>\n<\/ul>\n<h2><b>\u7d50\u8ad6<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Ruby\u306eHeredocs\u306f\u3001\u8907\u6570\u884c\u306e\u6587\u5b57\u5217\u306e\u53d6\u308a\u6271\u3044\u3092\u7c21\u7d20\u5316\u3059\u308b\u5f37\u529b\u306a\u6a5f\u80fd\u3067\u3059\u3002\u305d\u306e\u69cb\u6587\u3068\u6a5f\u80fd\u3092\u4f7f\u3044\u3053\u306a\u3059\u3053\u3068\u3067\u3001\u3088\u308a\u30af\u30ea\u30fc\u30f3\u3067\u4fdd\u5b88\u6027\u306e\u9ad8\u3044\u30b3\u30fc\u30c9\u3092\u3001\u3055\u307e\u3056\u307e\u306a <a href=\"https:\/\/www.railscarma.com\/ja\/%e3%82%ab%e3%82%b9%e3%82%bf%e3%83%a0%e3%83%ac%e3%83%bc%e3%83%ab%e3%82%a2%e3%83%97%e3%83%aa%e3%82%b1%e3%83%bc%e3%82%b7%e3%83%a7%e3%83%b3%e9%96%8b%e7%99%ba\/\">\u30ec\u30fc\u30eb<\/a>.Heredocs\u3092\u5fa1\u793e\u306b\u7d71\u5408\u3057\u307e\u3057\u3087\u3046\u3002 <a href=\"https:\/\/www.railscarma.com\/ja\/%e3%83%9d%e3%83%bc%e3%83%88%e3%83%95%e3%82%a9%e3%83%aa%e3%82%aa\/\">Ruby\u30d7\u30ed\u30b8\u30a7\u30af\u30c8<\/a> 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\u30af\u30a8\u30ea\u306e\u8a18\u8ff0\u3001\u5927\u304d\u306a\u30c6\u30ad\u30b9\u30c8\u30d6\u30ed\u30c3\u30af\u306e\u751f\u6210\u306a\u3069\u3001Ruby \u306e Heredoc \u3092\u4f7f\u3044\u3053\u306a\u3059\u3053\u3068\u3067\u3001\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u306e\u52b9\u7387\u304c\u5927\u5e45\u306b\u5411\u4e0a\u3057\u307e\u3059\u3002Ruby\u306eHeredoc\u3068\u306f\uff1fHeredoc\u3068\u306f\u300cHere Document\u300d\u306e\u7565\u3067\u3001\u8907\u6570\u884c\u306e\u6587\u5b57\u5217\u3092\u5b9a\u7fa9\u3067\u304d\u308bRuby\u306e\u69cb\u6587\u3067\u3059\u3002\u6587\u5b57\u5217\u3092\u9023\u7d50\u3057\u305f\u308a\u3001\u9762\u5012\u306a\u69cb\u6587\u3092\u4f7f\u3063\u305f\u308a\u3059\u308b\u4ee3\u308f\u308a\u306b\u3001Heredoc\u306f\u5927\u304d\u306a\u30c6\u30ad\u30b9\u30c8\u30d6\u30ed\u30c3\u30af\u3092\u57cb\u3081\u8fbc\u3080\u305f\u3081\u306e\u30af\u30ea\u30fc\u30f3\u3067\u8aad\u307f\u3084\u3059\u3044\u65b9\u6cd5\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u4ee5\u4e0b\u306f\u57fa\u672c\u7684\u306a\u4f8b\u3067\u3059\uff1a text = <<HEREDOCThis is a multi-line string.It preserving formatting and easy to read.HEREDOCputs text \u306a\u305cHeredocs\u3092\u4f7f\u3046\u306e\u304b\uff1f\u8aad\u307f\u3084\u3059\u3055\u306e\u5411\u4e0a:HEREDOCs\u306f...\u306e\u69cb\u9020\u3092\u7dad\u6301\u3057\u307e\u3059\u3002<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/www.railscarma.com\/ja\/%e3%83%96%e3%83%ad%e3%82%b0\/generative-ai-development-with-ruby-on-rails\/\"> <span class=\"screen-reader-text\">Generative AI Development with Ruby on Rails<\/span> \u3082\u3063\u3068\u8aad\u3080 \"<\/a><\/p>","protected":false},"author":5,"featured_media":38649,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1224],"tags":[],"class_list":["post-38641","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Mastering Ruby Heredocs : Tips & Examples for Developers<\/title>\n<meta name=\"description\" content=\"Learn how to master Ruby Heredocs with practical tips and examples. 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