{"id":23467,"date":"2025-11-13T05:08:48","date_gmt":"2025-11-13T05:08:48","guid":{"rendered":"https:\/\/pokecon.jp\/job\/?p=23467"},"modified":"2025-11-13T05:08:48","modified_gmt":"2025-11-13T05:08:48","slug":"kaigi-on-rails-2025-actionview%e3%81%8b%e3%82%89reactionview%e3%81%b8-html%e6%a7%8b%e9%80%a0%e3%82%92%e7%90%86%e8%a7%a3%e3%81%99%e3%82%8berb%e3%82%a8%e3%83%b3%e3%82%b8%e3%83%b3","status":"publish","type":"post","link":"https:\/\/pokecon.jp\/job\/23467\/","title":{"rendered":"Kaigi on Rails 2025 ActionView\u304b\u3089ReActionView\u3078 &#8211; HTML\u69cb\u9020\u3092\u7406\u89e3\u3059\u308bERB\u30a8\u30f3\u30b8\u30f3"},"content":{"rendered":"\n<\/p>\n<div>\n<p><img decoding=\"async\" src=\"http:\/\/res.cloudinary.com\/dyjw65doo\/image\/upload\/v1760760677\/KaigiOnRails-2025-day2-MarcoRoth\/ogp.png\" alt=\"ogp\"\/><\/p>\n<p>\u3053\u3093\u306b\u3061\u306f\u3001\u682a\u5f0f\u4f1a\u793eTechouse\u3067\u30a4\u30f3\u30bf\u30fc\u30f3\u3068\u3057\u3066\u50cd\u3044\u3066\u3044\u308bWaki Yuuku\u3067\u3059\u3002<br \/>\n\u672c\u8a18\u4e8b\u3067\u306f\u3001Kaigi on Rails 2025\u3067\u7d39\u4ecb\u3055\u308c\u305f\u6b21\u4e16\u4ee3\u306eERB\u30a8\u30f3\u30b8\u30f3\u300cReActionView\u300d\u306e\u6280\u8853\u306b\u3064\u3044\u3066\u307e\u3068\u3081\u307e\u3059\u3002<br \/>\n\u666e\u6bb5\u4f55\u6c17\u306a\u304f\u4f7f\u3063\u3066\u3044\u308bERB\u306e\u88cf\u5074\u3067\u4f55\u304c\u8d77\u304d\u3066\u3044\u308b\u306e\u304b\u3001\u305d\u3057\u3066ReActionView\u306e\u3059\u3054\u3055\u3084\u9762\u767d\u3055\u3092\u4f1d\u3048\u3089\u308c\u308b\u3088\u3046\u306b\u307e\u3068\u3081\u307e\u3057\u305f\u3002<\/p>\n<p>Techouse\u3067\u306f\u3001\u82e5\u624b\u306e\u30a8\u30f3\u30b8\u30cb\u30a2\u304c\u7a4d\u6975\u7684\u306b\u6280\u8853\u30ab\u30f3\u30d5\u30a1\u30ec\u30f3\u30b9\u306b\u53c2\u52a0\u3057\u3001\u6700\u65b0\u306e\u6280\u8853\u52d5\u5411\u3092\u5b66\u3073\u3001\u5171\u6709\u3059\u308b\u6587\u5316\u3092\u5927\u5207\u306b\u3057\u3066\u3044\u307e\u3059\u3002<br \/>\n\u79c1\u3082\u305d\u306e\u4e00\u74b0\u3068\u3057\u3066\u30012025\u5e749\u6708\u306b\u958b\u50ac\u3055\u308c\u305fKaigi on Rails 2025\u306b\u53c2\u52a0\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>\u4e8c\u65e5\u76ee\u306e\u767a\u8868\u3067\u306f\u3001Hotwire\u306e\u30b3\u30f3\u30c8\u30ea\u30d3\u30e5\u30fc\u30bf\u30fc\u3067\u3042\u308b<a target=\"_blank\" href=\"https:\/\/github.com\/marcoroth\">Marco Roth<\/a>\u6c0f\u304c\u3001\u6b21\u4e16\u4ee3\u306eERB\u958b\u767a\u30a8\u30b3\u30b7\u30b9\u30c6\u30e0\u3067\u3042\u308b<a target=\"_blank\" href=\"https:\/\/github.com\/marcoroth\/herb\">\u300cHERB\u300d<\/a>\u3092\u7528\u3044\u3066Rails\u306eView\u3092\u5f37\u5316\u3059\u308b\u65b0\u3057\u3044ERB\u30a8\u30f3\u30b8\u30f3<a target=\"_blank\" href=\"https:\/\/github.com\/marcoroth\/reactionview\">\u300cReActionView\u300d<\/a>\u306b\u3064\u3044\u3066\u8b1b\u6f14\u3055\u308c\u307e\u3057\u305f\u3002<br \/>\n\u3053\u306e\u767a\u8868\u958b\u767a\u306f\u3001Rails\u306e\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u958b\u767a\u306b\u304a\u3051\u308b\u672a\u6765\u3092\u611f\u3058\u3055\u305b\u308b\u5185\u5bb9\u3067\u3001\u3068\u3066\u3082\u30ef\u30af\u30ef\u30af\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>\u672c\u8a18\u4e8b\u3067\u306f\u3001\u305d\u306e\u30ef\u30af\u30ef\u30af\u3092\u7686\u3055\u3093\u3068\u5171\u6709\u3067\u304d\u308c\u3070\u3068\u8003\u3048\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><a target=\"_blank\" href=\"https:\/\/kaigionrails.org\/2025\/talks\/marcoroth\/#day2\">Kaigi on Rails 2025: Marco Roth\u6c0f\u306e\u30bb\u30c3\u30b7\u30e7\u30f3<\/a><\/p>\n<p>ReActionView\uff08Reactive ActionView\uff09\u306f\u3001Rails\u306eActionView\u3068\u4e92\u63db\u6027\u3092\u4fdd\u3061\u306a\u304c\u3089\u3001\u73fe\u4ee3\u306e\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u958b\u767a\u306e\u8981\u6c42\u306b\u5fdc\u3048\u308b\u6b21\u4e16\u4ee3\u306eERB\u30a8\u30f3\u30b8\u30f3\u3067\u3059\u3002Marco Roth\u6c0f\u306f\u30012025\u5e74\u3092\u901a\u3058\u3066RubyKaigi\u3001RailsConf\u3001Rails World\u3068\u6bb5\u968e\u7684\u306b\u3053\u306e\u30d3\u30b8\u30e7\u30f3\u3092\u767a\u8868\u3057\u3066\u304d\u307e\u3057\u305f<sup id=\"fnref:1\"><a target=\"_blank\" href=\"#fn:1\" rel=\"footnote\">1<\/a><\/sup>\u3002<\/p>\n<p>Hotwire\u3001Stimulus\u3001Turbo\u306a\u3069\u306e\u767b\u5834\u306b\u3088\u308a\u3001HTML\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u306e\u91cd\u8981\u6027\u304c\u518d\u3073\u9ad8\u307e\u3063\u3066\u3044\u307e\u3059\u3002ReActionView\u306f\u3001\u5f93\u6765\u306eActionView\u304c\u62b1\u3048\u308b\u8ab2\u984c\u3092\u89e3\u6c7a\u3057\u3001Rails\u306e\u30d3\u30e5\u30fc\u30ec\u30a4\u30e4\u30fc\u306b\u65b0\u3057\u3044\u53ef\u80fd\u6027\u3092\u3082\u305f\u3089\u305d\u3046\u3068\u3059\u308b\u53d6\u308a\u7d44\u307f\u3067\u3059\u3002<\/p>\n<h2 id=\"Rails-View-Layer\u306e\u8ab2\u984c\">Rails View Layer\u306e\u8ab2\u984c<\/h2>\n<p>Rails\u306eView\u5c64\u3067\u306f\u9577\u5e74\u3001Erubi\u304c\u5229\u7528\u3055\u308c\u3066\u304d\u307e\u3057\u305f\u3002\u3057\u304b\u3057\u3001\u8fd1\u5e74\u306eWeb\u958b\u767a\u306e\u9032\u5316\u306b\u4f34\u3044\u3001\u3044\u304f\u3064\u304b\u306e\u8ab2\u984c\u304c\u898b\u3048\u3066\u304d\u3066\u3044\u307e\u3059\u3002<\/p>\n<h3 id=\"1-ERB\u3092\u6587\u5b57\u5217\u3068\u3057\u3066\u6271\u3046\u4ed5\u7d44\u307f\">1. ERB\u3092\u6587\u5b57\u5217\u3068\u3057\u3066\u6271\u3046\u4ed5\u7d44\u307f<\/h3>\n<p>\u73fe\u5728\u306eActionView\u306f\u3001ERB\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3092<strong>\u6587\u5b57\u5217\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30a8\u30f3\u30b8\u30f3<\/strong>\u3068\u3057\u3066\u51e6\u7406\u3057\u3066\u3044\u307e\u3059\u3002ERB\u30bf\u30b0\u306e\u5916\u5074\u306b\u3042\u308bHTML\u3082\u5358\u306a\u308b\u6587\u5b57\u5217\u3068\u3057\u3066\u6271\u308f\u308c\u308b\u305f\u3081\u3001HTML\u306e\u69cb\u9020\u3092\u8a8d\u8b58\u3067\u304d\u305a\u3001\u30bf\u30b0\u306e\u9589\u3058\u5fd8\u308c\u306a\u3069\u306e\u7121\u52b9\u306aHTML\u3082\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306b\u691c\u51fa\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n<p>\u4f8b\u3048\u3070\u3001\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u306f\u30a8\u30e9\u30fc\u306b\u306a\u3089\u305a\u3001\u7121\u52b9\u306aHTML\u304c\u751f\u6210\u3055\u308c\u307e\u3059\uff1a<\/p>\n<pre class=\"code lang-html\" data-lang=\"html\" data-unlink=\"\"><span class=\"synIdentifier\"><span class=\"synStatement\">div<\/span><span class=\"synIdentifier\"> <\/span><span class=\"synType\">class<\/span><span class=\"synIdentifier\">=<\/span><span class=\"synConstant\">\"container\"<\/span><span class=\"synIdentifier\">&gt;<\/span>\n  <span class=\"synIdentifier\"\/>\n    <span class=\"synIdentifier\"><span class=\"synStatement\">h1<\/span><span class=\"synIdentifier\">&gt;<\/span>Welcome, <span class=\"synIdentifier\"><span class=\"synConstant\"> user.name<\/span><span class=\"synIdentifier\"> %&gt;<\/span>\n  <span class=\"synIdentifier\"\/>\n\n<\/span><\/span><\/span><\/pre>\n<h3 id=\"2-\u958b\u767a\u30c4\u30fc\u30eb\u306e\u4e0d\u8db3\">2. \u958b\u767a\u30c4\u30fc\u30eb\u306e\u4e0d\u8db3<\/h3>\n<p>\u8fd1\u5e74\u3001Ruby\u3084JavaScript\u306e\u958b\u767a\u74b0\u5883\u306f\u5927\u304d\u304f\u9032\u5316\u3057\u307e\u3057\u305f\u3002LSP\u306b\u3088\u308b\u88dc\u5b8c\u6a5f\u80fd\u3001\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u69cb\u6587\u30c1\u30a7\u30c3\u30af\u3001\u81ea\u52d5\u30d5\u30a9\u30fc\u30de\u30c3\u30bf\u306a\u3069\u304c\u4e00\u822c\u7684\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<br \/>\n\u3057\u304b\u3057\u3001HTML+ERB\u30d5\u30a1\u30a4\u30eb\u306b\u5bfe\u3057\u3066\u306f\u57fa\u672c\u7684\u306a\u958b\u767a\u652f\u63f4\u304c\u4e0d\u8db3\u3057\u3066\u3044\u307e\u3057\u305f<sup id=\"fnref:2\"><a target=\"_blank\" href=\"#fn:2\" rel=\"footnote\">2<\/a><\/sup>\uff1a<\/p>\n<ul>\n<li>\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u306e\u69cb\u6587\u30c1\u30a7\u30c3\u30af\u304c\u306a\u3044<\/li>\n<li>HTML\u3068Ruby\u304c\u6df7\u5728\u3059\u308b\u305f\u3081\u81ea\u52d5\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u304c\u56f0\u96e3<\/li>\n<li>\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3084\u30a2\u30af\u30bb\u30b7\u30d3\u30ea\u30c6\u30a3\u306e\u81ea\u52d5\u30c1\u30a7\u30c3\u30af\u304c\u3067\u304d\u306a\u3044<\/li>\n<\/ul>\n<h3 id=\"3-\u8907\u96d1\u306aUI\u8981\u6c42\u3078\u306e\u5bfe\u5fdc\">3. \u8907\u96d1\u306aUI\u8981\u6c42\u3078\u306e\u5bfe\u5fdc<\/h3>\n<p>\u73fe\u4ee3\u306eWeb\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306f\u3001\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3001\u52d5\u7684\u30d5\u30a9\u30fc\u30e0\u3001\u5927\u898f\u6a21\u30b3\u30fc\u30c9\u30d9\u30fc\u30b9\u306e\u7ba1\u7406\u306a\u3069\u3001\u5f93\u6765\u306eActionView\u304c\u8a2d\u8a08\u6642\u306b\u60f3\u5b9a\u3057\u3066\u3044\u306a\u304b\u3063\u305f\u8981\u6c42\u304c\u5897\u3048\u3066\u3044\u307e\u3059<sup id=\"fnref:3\"><a target=\"_blank\" href=\"#fn:3\" rel=\"footnote\">3<\/a><\/sup>\u3002<\/p>\n<h2 id=\"ReActionView\u304c\u76ee\u6307\u3059\u3082\u306e\">ReActionView\u304c\u76ee\u6307\u3059\u3082\u306e<\/h2>\n<h3 id=\"ERB\u958b\u767a\u30a8\u30b3\u30b7\u30b9\u30c6\u30e0Herb\">ERB\u958b\u767a\u30a8\u30b3\u30b7\u30b9\u30c6\u30e0\u300cHerb\u300d<\/h3>\n<p>ReActionView\u306e\u6838\u3068\u306a\u308b\u306e\u304c\u3001<strong>Herb\uff08HTML-aware ERB Parser\uff09<\/strong>\u3067\u3059<sup id=\"fnref:4\"><a target=\"_blank\" href=\"#fn:4\" rel=\"footnote\">4<\/a><\/sup>\u3002Herb\u306e\u4e2d\u6838\u3068\u306a\u308b\u306e\u306fC\u8a00\u8a9e\u3067\u5b9f\u88c5\u3055\u308c\u305f\u9ad8\u901f\u30d1\u30fc\u30b5\u30fc\u3067\u3001ERB\u30d5\u30a1\u30a4\u30eb\u3092\u6587\u5b57\u5217\u3067\u306f\u306a\u304f<strong>HTML\u69cb\u9020<\/strong>\uff08HTML\u306e\u8981\u7d20\u3084\u30bf\u30b0\u306e\u968e\u5c64\u95a2\u4fc2\u306a\u3069\uff09\u3068\u3057\u3066\u7406\u89e3\u3057\u307e\u3059\u3002<br \/>\n\u8a73\u3057\u304f\u306f<a target=\"_blank\" href=\"https:\/\/marcoroth.dev\/posts\/introducing-herb\">Introducing Herb: A new HTML-Aware ERB Parser<\/a>\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3 id=\"\u5145\u5b9f\u3057\u305f\u958b\u767a\u8005\u30c4\u30fc\u30eb\">\u5145\u5b9f\u3057\u305f\u958b\u767a\u8005\u30c4\u30fc\u30eb<\/h3>\n<p>ReActionView\u306f\u3001Herb\u3092\u6d3b\u7528\u3057\u3066\u4ee5\u4e0b\u306e\u30c4\u30fc\u30eb\u3092\u63d0\u4f9b\u3057\u307e\u3059\uff1a<\/p>\n<p><strong>\u30a8\u30c7\u30a3\u30bf\u7d71\u5408<\/strong><\/p>\n<ul>\n<li>\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0HTML\u691c\u8a3c\u3068\u30a8\u30e9\u30fc\u8b66\u544a<\/li>\n<li>\u81ea\u52d5\u30d5\u30a9\u30fc\u30de\u30c3\u30bf<\/li>\n<li>\u30ea\u30f3\u30bf\u30fc<\/li>\n<li>Language Server<\/li>\n<\/ul>\n<p><strong>\u30d6\u30e9\u30a6\u30b6\u30c4\u30fc\u30eb<\/strong><\/p>\n<ul>\n<li>View\/Partial\/Component Outlines\u3067\u30d3\u30e5\u30fc\u306e\u5883\u754c\u3092\u53ef\u8996\u5316<\/li>\n<li>Jump to Source\u3067\u30d6\u30e9\u30a6\u30b6\u304b\u3089\u30a8\u30c7\u30a3\u30bf\u3078\u30b8\u30e3\u30f3\u30d7<\/li>\n<li>ERB Output Hover\u3067\u751f\u6210\u5143\u306eERB\u30b3\u30fc\u30c9\u3092\u8868\u793a<\/li>\n<li>\u691c\u8a3c\u30aa\u30fc\u30d0\u30fc\u30ec\u30a4\u3067HTML\u691c\u8a3c\u30a8\u30e9\u30fc\u3092\u8868\u793a<\/li>\n<\/ul>\n<p>\u6065\u305a\u304b\u3057\u306a\u304c\u3089\u79c1\u306fRails\u306eView\u5c64\u306b\u95a2\u3057\u3066\u300cERB\u3092\u3088\u3057\u306a\u306bActionView\u304c\u5909\u63db\u3057\u3066\u308b\u3093\u3067\u3057\u3087\u300d\u304f\u3089\u3044\u306e\u8a8d\u8b58\u3057\u304b\u3042\u308a\u307e\u305b\u3093\u3067\u3057\u305f\u3002\u305d\u306e\u88cf\u5074\u3067\u3069\u306e\u3088\u3046\u306a\u51e6\u7406\u304c\u884c\u308f\u308c\u3066\u3044\u308b\u306e\u304b\u3092\u307b\u3068\u3093\u3069\u610f\u8b58\u3057\u3066\u3044\u307e\u305b\u3093\u3067\u3057\u305f\u3002<br \/>\nReActionView\u306e\u9769\u65b0\u6027\u3092\u7406\u89e3\u3059\u308b\u305f\u3081\u306b\u3001\u307e\u305a\u73fe\u5728\u306eActionView\u304cERB\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3092\u3069\u306e\u3088\u3046\u306b\u51e6\u7406\u3057\u3066\u3044\u308b\u306e\u304b\u3092\u898b\u3066\u3044\u304d\u307e\u3059\u3002<br \/>\u305d\u3093\u306a\u306e\u77e5\u3063\u3066\u308b\u3088\u3068\u3044\u3046\u4eba\u306f\u8aad\u307f\u98db\u3070\u3057\u3066\u3044\u305f\u3060\u3044\u3066\u69cb\u3044\u307e\u305b\u3093\u3002<\/p>\n<h2 id=\"ERB\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u306e\u5909\u63db\u30d5\u30ed\u30fc\">ERB\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u306e\u5909\u63db\u30d5\u30ed\u30fc<\/h2>\n<p>Rails\u304cERB\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3092HTML\u306b\u5909\u63db\u3059\u308b\u30d7\u30ed\u30bb\u30b9\u306f\u3001\u4ee5\u4e0b\u306e\u30b7\u30fc\u30b1\u30f3\u30b9\u56f3\u3067\u8868\u73fe\u3067\u304d\u307e\u3059\uff1a<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/res.cloudinary.com\/dyjw65doo\/image\/upload\/v1762579543\/KaigiOnRails-2025-day2-MarcoRoth\/actionview_sequence.svg\" alt=\"ActionView\u51e6\u7406\u30d5\u30ed\u30fc\"\/><\/p>\n<p>\u7279\u306b\u9762\u767d\u3044\u306e\u306f\u3001ActionView\u304cERB\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3092HTML\u306b\u5909\u63db\u3059\u308b\u30d7\u30ed\u30bb\u30b9\u3067Erubi::Engine\u304cERB\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3092\u4e00\u5ea6\u4e2d\u9593\u8868\u73fe\u306eRuby\u30b3\u30fc\u30c9\u306b\u5909\u63db\u3059\u308b\u90e8\u5206\u3067\u3059\u3002<br \/>\n\u4e2d\u9593\u306eRuby\u30b3\u30fc\u30c9\u306f\u5909\u6570\u3092\u5c55\u958b\u3057\u305f\u6587\u5b57\u5217(HTML)\u3092\u751f\u6210\u3059\u308b\u5f79\u5272\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u308c\u306b\u3064\u3044\u3066\u306f\u6b21\u306e\u300c\u52d5\u4f5c\u539f\u7406\u300d\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u8a73\u3057\u304f\u898b\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<h2 id=\"Erubi\u30a8\u30f3\u30b8\u30f3\u306e\u52d5\u4f5c\u539f\u7406\">Erubi\u30a8\u30f3\u30b8\u30f3\u306e\u52d5\u4f5c\u539f\u7406<\/h2>\n<h3 id=\"\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u306e\u5206\u5272\u51e6\u7406\">\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u306e\u5206\u5272\u51e6\u7406<\/h3>\n<p>Erubi\u306f\u3001\u6b63\u898f\u8868\u73fe\u3092\u4f7f\u3063\u3066ERB\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3092<strong>\u9759\u7684\u90e8\u5206<\/strong>\uff08HTML\u306a\u3069\uff09\u3068<strong>\u52d5\u7684\u90e8\u5206<\/strong>\uff08Ruby\u30b3\u30fc\u30c9\uff09\u306b\u5206\u5272\u3057\u307e\u3059\u3002\u3053\u306e\u5909\u63db\u306f\u975e\u5e38\u306b\u30b7\u30f3\u30d7\u30eb\u3067\u3001<a target=\"_blank\" href=\"https:\/\/github.com\/jeremyevans\/erubi\/blob\/master\/lib\/erubi.rb\">Erubi::Engine\u30af\u30e9\u30b9\u306einitialize\u30e1\u30bd\u30c3\u30c9<\/a>\u306b\u307b\u3068\u3093\u3069\u306e\u51e6\u7406\u304c\u53ce\u307e\u3063\u3066\u304a\u308a\u3001\u6bd4\u8f03\u7684\u7406\u89e3\u3057\u3084\u3059\u3044\u5b9f\u88c5\u306b\u306a\u3063\u3066\u3044\u307e\u3059<sup id=\"fnref:5\"><a target=\"_blank\" href=\"#fn:5\" rel=\"footnote\">5<\/a><\/sup>\u3002<\/p>\n<p>\u7c21\u5358\u306b\u8aac\u660e\u3059\u308b\u3068\u3001Erubi\u306f<code>_buf<\/code>\u3068\u3044\u3046\u30d0\u30c3\u30d5\u30a1\u5909\u6570\u3092\u4f7f\u3044\u3001HTML\u6587\u5b57\u5217\u3092\u9806\u6b21\u9023\u7d50\u3057\u3066\u3044\u304d\u307e\u3059\u3002\u3053\u306e\u6642\u3001HTML\u8981\u7d20\u306f\u69cb\u9020\u306b\u95a2\u4fc2\u306a\u304f\u30c6\u30ad\u30b9\u30c8\u8981\u7d20\u3068\u3057\u3066<code>_buf<\/code>\u306b\u8ffd\u52a0\u3055\u308c\u307e\u3059\u3002<code>\u30bf\u30b0\u5185\u306eRuby\u30b3\u30fc\u30c9\u306f\u305d\u306e\u307e\u307e\u5b9f\u884c\u3055\u308c\u3001<code>\u30bf\u30b0\u5185\u306eRuby\u30b3\u30fc\u30c9\u306f\u8a55\u4fa1\u3055\u308c\u305f\u7d50\u679c\u304c\u6587\u5b57\u5217\u5316\u3055\u308c\u3066<code>_buf<\/code>\u306b\u8ffd\u52a0\u3055\u308c\u307e\u3059\u3002<\/code><\/code><\/p>\n<p>\u4f8b\u3048\u3070\u3001\u4ee5\u4e0b\u306eERB\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\uff1a<\/p>\n<pre class=\"code erb\" data-lang=\"erb\" data-unlink=\"\"><p>\n  <h2\/>\n  \n    <span class=\"&quot;badge&quot;\">Admin<\/span>\n  \n<\/p><\/pre>\n<p>\u3053\u308c\u306f\u3001Erubi\u306b\u3088\u3063\u3066\u4ee5\u4e0b\u306e\u3088\u3046\u306aRuby\u30b3\u30fc\u30c9\u306b\u5909\u63db\u3055\u308c\u307e\u3059\uff08\u7c21\u7565\u5316\uff09\uff1a<\/p>\n<pre class=\"code lang-ruby\" data-lang=\"ruby\" data-unlink=\"\">_buf = ::<span class=\"synType\">String<\/span>.new\n_buf '<span class=\"synConstant\"><p> <h2><span class=\"synSpecial\">'<\/span>.freeze\n_buf @user.name ).to_s\n_buf '<span class=\"synConstant\"\/><\/h2> <span class=\"synSpecial\">'<\/span>.freeze\n<span class=\"synStatement\">if<\/span> <span class=\"synIdentifier\">@user<\/span>.admin?\n_buf '<span class=\"synConstant\"><span class=\"&quot;badge&quot;\">Admin<\/span><\/span><span class=\"synSpecial\">'<\/span>.freeze\n<span class=\"synStatement\">end<\/span>\n_buf '<span class=\"synConstant\"\/><\/p><\/span><span class=\"synSpecial\">'<\/span>.freeze\n_buf.to_s\n<\/pre>\n<h2 id=\"\u73fe\u5728\u306e\u8ab2\u984c\u70b9\">\u73fe\u5728\u306e\u8ab2\u984c\u70b9<\/h2>\n<p>\u73fe\u72b6\u306eActionView\u3068Erubi\u306e\u7d44\u307f\u5408\u308f\u305b\u306b\u306f\u3001\u3044\u304f\u3064\u304b\u306e\u8ab2\u984c\u304c\u3042\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3057\u305f\u3002<\/p>\n<h3 id=\"1-HTML\u69cb\u9020\u306e\u975e\u8a8d\u8b58\">1. HTML\u69cb\u9020\u306e\u975e\u8a8d\u8b58<\/h3>\n<p>Erubi\u306f\u6b63\u898f\u8868\u73fe\u3067ERB\u30bf\u30b0\u3092\u898b\u3064\u3051\u3001\u305d\u308c\u4ee5\u5916\u306e\u90e8\u5206\u306f\u5358\u306a\u308b\u6587\u5b57\u5217\u3068\u3057\u3066\u6271\u3044\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u554f\u984c\u304c\u767a\u751f\u3057\u307e\u3059\uff1a<\/p>\n<pre class=\"code erb\" data-lang=\"erb\" data-unlink=\"\"><!-- &#21839;&#38988;&#12398;&#12354;&#12427;&#12467;&#12540;&#12489;&#20363; -->\n\n<!-- <\/p>&#12479;&#12464;&#12364;&#38281;&#12376;&#12425;&#12428;&#12390;&#12356;&#12394;&#12356;&#12364;&#12289;&#12456;&#12521;&#12540;&#12395;&#12394;&#12425;&#12394;&#12356; --><\/pre>\n<p>\u3053\u306e\u30b3\u30fc\u30c9\u306f\u6b63\u5e38\u306b\u30b3\u30f3\u30d1\u30a4\u30eb\u3055\u308c\u3001\u5b9f\u884c\u3055\u308c\u307e\u3059\u304c\u3001\u751f\u6210\u3055\u308c\u308bHTML\u306f\u7121\u52b9\u3067\u3059\u3002<\/p>\n<h3 id=\"2-\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u9650\u754c\">2. \u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u9650\u754c<\/h3>\n<p>\u6587\u5b57\u5217\u3068\u3057\u3066\u51e6\u7406\u3055\u308c\u308b\u305f\u3081\u3001\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u305f\u969b\u306e\u60c5\u5831\u304c\u9650\u5b9a\u7684\u3067\u3059\uff1a<br \/>\n\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u5206\u304b\u308a\u3065\u3089\u3044\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u4f55\u5ea6\u3082\u898b\u305f\u3053\u3068\u304c\u3042\u308b\u306e\u3067\u306f\u306a\u3044\u3067\u3057\u3087\u3046\u304b\uff1f<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/res.cloudinary.com\/dyjw65doo\/image\/upload\/v1762579545\/KaigiOnRails-2025-day2-MarcoRoth\/erubi_syntax_error.png\" alt=\"Erubi\u306e\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u4f8b\"\/><\/p>\n<p>\u3053\u306e\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u3060\u3051\u3067\u306f\u3001\u3069\u306eHTML\u8981\u7d20\u306e\u4e2d\u3067\u554f\u984c\u304c\u767a\u751f\u3057\u305f\u306e\u304b\u3001ERB\u30d5\u30a1\u30a4\u30eb\u306e\u3069\u306e\u6587\u8108\u306a\u306e\u304b\u304c\u308f\u304b\u308a\u306b\u304f\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3 id=\"3-\u30c4\u30fc\u30eb\u30b5\u30dd\u30fc\u30c8\u306e\u56f0\u96e3\u3055\">3. \u30c4\u30fc\u30eb\u30b5\u30dd\u30fc\u30c8\u306e\u56f0\u96e3\u3055<\/h3>\n<p>\u6587\u5b57\u5217\u30d9\u30fc\u30b9\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u3067\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30c4\u30fc\u30eb\u3092\u63d0\u4f9b\u3059\u308b\u306e\u304c\u56f0\u96e3\u3067\u3059\uff1a<\/p>\n<ul>\n<li><strong>\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u691c\u8a3c<\/strong>\uff1a\u30bf\u30b0\u306e\u5bfe\u5fdc\u95a2\u4fc2\u3084HTML\u4ed5\u69d8\u3078\u306e\u9069\u5408\u6027\u3092\u30c1\u30a7\u30c3\u30af\u3067\u304d\u306a\u3044<\/li>\n<li><strong>\u88dc\u5b8c<\/strong>\uff1a\u73fe\u5728\u306eHTML\u8981\u7d20\u306e\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u306b\u5fdc\u3058\u305f\u88dc\u5b8c\u304c\u3067\u304d\u306a\u3044<\/li>\n<\/ul>\n<p>\u3053\u308c\u3089\u306e\u8ab2\u984c\u306f\u3001Erubi\u306e\u8a2d\u8a08\u305d\u306e\u3082\u306e\u306b\u8d77\u56e0\u3057\u3066\u3044\u307e\u3059\u3002Erubi\u306f\u300c\u6587\u5b57\u5217\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30a8\u30f3\u30b8\u30f3\u300d\u3068\u3057\u3066\u8a2d\u8a08\u3055\u308c\u3066\u3044\u308b\u305f\u3081\u3001HTML\u306e\u69cb\u9020\u3092\u7406\u89e3\u3057\u3066\u3044\u307e\u305b\u3093[^2]\u3002<\/p>\n<p>\u3053\u3053\u304b\u3089\u3001Kaigi on Rails 2025\u3067\u7d39\u4ecb\u3055\u308c\u305fReActionView\u304c\u3001ActionView\u306b\u6bd4\u3079\u3066\u3069\u306e\u3088\u3046\u306b\u5909\u308f\u308b\u306e\u304b\u3092\u307f\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<h2 id=\"ReActionView\u306e\u5168\u4f53\u69cb\u6210\">ReActionView\u306e\u5168\u4f53\u69cb\u6210<\/h2>\n<p>ReActionView\u306f\u3001\u65e2\u5b58\u306eActionView\u306e\u4ed5\u7d44\u307f\u3092\u5927\u304d\u304f\u5909\u66f4\u3059\u308b\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u5b9f\u969b\u306b\u7f6e\u304d\u63db\u308f\u308b\u306e\u306f<strong>Handler\u90e8\u5206\u306e\u307f<\/strong>\u3067\u3001\u4ed6\u306e\u90e8\u5206\u306f\u65e2\u5b58\u306eActionView\u306e\u4ed5\u7d44\u307f\u3092\u305d\u306e\u307e\u307e\u5229\u7528\u3057\u307e\u3059\u3002<\/p>\n<p>Handler\u306f\u3001\u53d7\u3051\u53d6\u3063\u305fERB\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3092Ruby\u30b3\u30fc\u30c9\u306b\u5909\u63db\u3059\u308b\u5f79\u5272\u3092\u62c5\u3046\u90e8\u5206\u3067\u3059\u3002ReActionView\u3067\u306f\u3001\u3053\u306e\u5909\u63db\u51e6\u7406\u306b<strong>Herb\u30d1\u30fc\u30b5\u30fc<\/strong>\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3067\u3001HTML\u69cb\u9020\u3092\u7406\u89e3\u3057\u305f\u4e0a\u3067\u30b3\u30fc\u30c9\u751f\u6210\u3092\u884c\u3044\u307e\u3059\u3002<\/p>\n<p>\u4ee5\u4e0b\u306e\u30b7\u30fc\u30b1\u30f3\u30b9\u56f3\u306f\u3001ReActionView\u306e\u51e6\u7406\u30d5\u30ed\u30fc\u306e\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u5148\u307b\u3069\u306e\u30b7\u30fc\u30b1\u30f3\u30b9\u56f3\u3068\u6bd4\u8f03\u3057\u3066\u307f\u304f\u3060\u3055\u3044\u3002<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/res.cloudinary.com\/dyjw65doo\/image\/upload\/v1762580969\/KaigiOnRails-2025-day2-MarcoRoth\/ReActionView_Sequence.svg\" alt=\"ActionView\u51e6\u7406\u30d5\u30ed\u30fc\"\/><\/p>\n<p>\u56f3\u304b\u3089\u308f\u304b\u308b\u3088\u3046\u306b\u3001\u6700\u7d42\u7684\u306bHTML\u30ec\u30b9\u30dd\u30f3\u30b9\u3092\u8fd4\u3059\u6d41\u308c\u306f\u540c\u3058\u3067\u3059\u3002\u5909\u308f\u308b\u306e\u306f\u3001ERB\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u304b\u3089Ruby\u30b3\u30fc\u30c9\u3092\u751f\u6210\u3059\u308bHandler\u90e8\u5206\u3060\u3051\u3067\u3059\u3002\u3053\u306e\u8a2d\u8a08\u306b\u3088\u308a\u3001\u65e2\u5b58\u306eRails\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3078\u306e\u5f71\u97ff\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u306a\u304c\u3089\u3001HTML\u69cb\u9020\u3092\u7406\u89e3\u3059\u308b\u6a5f\u80fd\u3092\u5c0e\u5165\u3067\u304d\u307e\u3059\u3002<\/p>\n<h2 id=\"Herb-Parser\u306e\u5c0e\u5165\">Herb Parser\u306e\u5c0e\u5165<\/h2>\n<p>ReActionView\u3067\u4f7f\u308f\u308c\u308bHerb\u30d1\u30fc\u30b5\u30fc\u306f\u3001C\u8a00\u8a9e\u3067\u5b9f\u88c5\u3055\u308c\u305f\u9ad8\u901f\u306aERB\u30d1\u30fc\u30b5\u30fc\u3067\u3059\u3002\u6700\u5927\u306e\u7279\u5fb4\u306f\u3001ERB\u30d5\u30a1\u30a4\u30eb\u3092\u6587\u5b57\u5217\u3068\u3057\u3066\u3067\u306f\u306a\u304f\u3001<strong>HTML\u69cb\u9020\u3068\u3057\u3066\u7406\u89e3\u3057\u306a\u304c\u3089\u89e3\u6790\u3059\u308b<\/strong>\u3053\u3068\u3067\u3059\u3002<\/p>\n<p>Erubi\u304c\u6b63\u898f\u8868\u73fe\u3067ERB\u30bf\u30b0\u3092\u63a2\u3057\u3066\u6587\u5b57\u5217\u3068\u3057\u3066\u51e6\u7406\u3057\u3066\u3044\u305f\u306e\u306b\u5bfe\u3057\u3001Herb\u306fHTML\u8981\u7d20\u3001\u30bf\u30b0\u306e\u968e\u5c64\u95a2\u4fc2\u3001\u5c5e\u6027\u3001\u305d\u3057\u3066ERB\u30b3\u30fc\u30c9\u306e\u4f4d\u7f6e\u3092\u6b63\u3057\u304f\u8a8d\u8b58\u3057\u307e\u3059\u3002\u3053\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u306b\u3088\u308a\u3001\u30d1\u30fc\u30b9\u6bb5\u968e\u3067HTML\u69cb\u9020\u306e\u59a5\u5f53\u6027\u3092\u691c\u8a3c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>Herb\u306e\u8a73\u7d30\u306a\u4ed5\u7d44\u307f\u3084\u8a2d\u8a08\u601d\u60f3\u306b\u3064\u3044\u3066\u306f\u3001Marco Roth\u6c0f\u304cRubyKaigi 2025\u3067\u767a\u8868\u3057\u305f<a target=\"_blank\" href=\"https:\/\/rubykaigi.org\/2025\/presentations\/marcoroth\">Empowering Developers with HTML-Aware ERB Tooling<\/a>\u3084\u3001<a target=\"_blank\" href=\"https:\/\/marcoroth.dev\/posts\/introducing-herb\">Introducing Herb: A new HTML-Aware ERB Parser<\/a>\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n<h2 id=\"HerbEngine\u306e\u4ed5\u7d44\u307f\">Herb::Engine\u306e\u4ed5\u7d44\u307f<\/h2>\n<h3 id=\"\u69cb\u6587\u6728AST\u30d9\u30fc\u30b9\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\">\u69cb\u6587\u6728(AST)\u30d9\u30fc\u30b9\u306e\u30a2\u30d7\u30ed\u30fc\u30c1<\/h3>\n<p>Herb::Engine\u306f\u3001Herb\u30d1\u30fc\u30b5\u30fc\u304c\u751f\u6210\u3059\u308b<strong>\u62bd\u8c61\u69cb\u6587\u6728\uff08AST: Abstract Syntax Tree\uff09<\/strong>\u3092\u5229\u7528\u3057\u3066\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3092\u884c\u3044\u307e\u3059\u3002<\/p>\n<p>Erubi\u304c<code>_buf<\/code>\u306b\u6587\u5b57\u5217\u3092\u9806\u6b21\u9023\u7d50\u3057\u3066\u3044\u304f\u306e\u306b\u5bfe\u3057\u3001Herb::Engine\u306f\u307e\u305aERB\u30d5\u30a1\u30a4\u30eb\u5168\u4f53\u3092AST\u3068\u3057\u3066\u89e3\u6790\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001HTML\u69cb\u9020\u3092\u7406\u89e3\u3057\u305f\u4e0a\u3067\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u5b9f\u969b\u306b\u3069\u306e\u3088\u3046\u306a\u69cb\u6587\u6728\u304c\u751f\u6210\u3055\u308c\u308b\u306e\u304b\u3001\u7c21\u5358\u306a\u4f8b\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002\u4ee5\u4e0b\u306eERB\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3092\u8003\u3048\u307e\u3059\uff1a<\/p>\n<pre class=\"code erb\" data-lang=\"erb\" data-unlink=\"\"\/>\n\n\n<p>re\nHerb\u30d1\u30fc\u30b5\u30fc\u306f\u3001\u3053\u306e\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3092\u4ee5\u4e0b\u306e\u3088\u3046\u306aAST\u69cb\u9020\u3068\u3057\u3066\u89e3\u6790\u3057\u307e\u3059\uff1a<\/p>\n\n<pre class=\"code\" data-lang=\"\" data-unlink=\"\">@ DocumentNode (location: (1:0)-(1:24))\n\u251c\u2500\u2500 errors: []\n\u2514\u2500\u2500 children: (1 item)\n    \u2514\u2500\u2500 @ HTMLElementNode (location: (1:0)-(1:24))\n        \u251c\u2500\u2500 errors: []\n        \u251c\u2500\u2500 open_tag: \n        \u2502   \u2514\u2500\u2500 @ HTMLOpenTagNode (location: (1:0)-(1:3))\n        \u2502       \u251c\u2500\u2500 errors: []\n        \u2502       \u251c\u2500\u2500 tag_opening: \"\" (location: (1:2)-(1:3))\n        \u2502       \u251c\u2500\u2500 children: []\n        \u2502       \u2514\u2500\u2500 is_void: false\n        \u2502       \n        \u251c\u2500\u2500 tag_name: \"p\" (location: (1:1)-(1:2))\n        \u251c\u2500\u2500 body: (1 item)\n        \u2502   \u2514\u2500\u2500 @ ERBContentNode (location: (1:3)-(1:20))\n        \u2502       \u251c\u2500\u2500 errors: []\n        \u2502       \u251c\u2500\u2500 tag_opening: \"\" (location: (1:18)-(1:20))\n        \u2502       \u251c\u2500\u2500 parsed: true\n        \u2502       \u2514\u2500\u2500 valid: true\n        \u2502       \n        \u2502   \n        \u251c\u2500\u2500 close_tag: \n        \u2502   \u2514\u2500\u2500 @ HTMLCloseTagNode (location: (1:20)-(1:24))\n        \u2502       \u251c\u2500\u2500 errors: []\n        \u2502       \u251c\u2500\u2500 tag_opening: \"\" (location: (1:20)-(1:22))\n        \u2502       \u251c\u2500\u2500 tag_name: \"p\" (location: (1:22)-(1:23))\n        \u2502       \u251c\u2500\u2500 children: []\n        \u2502       \u2514\u2500\u2500 tag_closing: \"&gt;\" (location: (1:23)-(1:24))\n        \u2502       \n        \u251c\u2500\u2500 is_void: false\n        \u2514\u2500\u2500 source: \"HTML\"<\/pre>\n<p>AST\u306e\u5404\u30ce\u30fc\u30c9\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u60c5\u5831\u3092\u6301\u3063\u3066\u3044\u307e\u3059\uff1a<br \/><strong>HTMLElementNode<\/strong><br \/><code\/>\u30bf\u30b0\u306fHTMLElementNode\u3068\u3057\u3066\u8868\u73fe\u3055\u308c\u3001\u958b\u59cb\u30bf\u30b0\u3068\u7d42\u4e86\u30bf\u30b0\u304c\u6b63\u3057\u304f\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n<p><strong>ERBContentNode<\/strong><br \/><code\/>\u306fERBContentNode\u3068\u3057\u3066\u8868\u73fe\u3055\u308c\u3001HTML\u3068\u306f\u660e\u78ba\u306b\u533a\u5225\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><strong>\u4f4d\u7f6e\u60c5\u5831\u3068\u30a8\u30e9\u30fc\u691c\u51fa<\/strong><br \/>\u5404\u30ce\u30fc\u30c9\u306ferrors\u914d\u5217\u3092\u6301\u3061\u3001\u69cb\u6587\u30a8\u30e9\u30fc\u3092\u691c\u51fa\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>Erubi\u3067\u306f\u3001\u3053\u308c\u3089\u306e\u60c5\u5831\u306f\u3059\u3079\u3066\u300c\u6587\u5b57\u5217\u306e\u9023\u7d50\u9806\u5e8f\u300d\u3068\u3057\u3066\u3057\u304b\u6271\u308f\u308c\u3066\u3044\u307e\u305b\u3093\u3067\u3057\u305f\u3002\u3057\u304b\u3057\u3001Herb::Engine\u306f\u69cb\u9020\u3092\u7406\u89e3\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u5b9f\u884c\u524d\u306bHTML\u59a5\u5f53\u6027\u3092\u691c\u8a3c\u3067\u304d\u307e\u3059\u3002<br \/>\n\u4f8b\u3048\u3070\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306ahtml\u306e\u9589\u3058\u30bf\u30b0\u5fd8\u308c\u306e\u3042\u308b\u30b3\u30fc\u30c9\u306e\u5834\u5408:<\/p>\n<pre class=\"code erb\" data-lang=\"erb\" data-unlink=\"\"\/>\n\n\n<p>AST\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u9589\u3058\u30bf\u30b0\u306e\u4e0d\u8db3\u3092\u30a8\u30e9\u30fc\u3068\u3057\u3066\u3001MissingClosingTagError\u30ce\u30fc\u30c9\u3068\u3057\u3066\u8868\u73fe\u3059\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n<pre class=\"code\" data-lang=\"\" data-unlink=\"\">@ DocumentNode (location: (1:0)-(1:20))\n\u251c\u2500\u2500 errors: []\n\u2514\u2500\u2500 children: (2 items)\n    \u251c\u2500\u2500 @ HTMLOpenTagNode (location: (1:0)-(1:3))\n    \u2502   \u251c\u2500\u2500 errors: (1 item)\n    \u2502   \u2502   \u2514\u2500\u2500 @ MissingClosingTagError (location: (1:0)-(1:3))\n    \u2502   \u2502       \u251c\u2500\u2500 message: \"Opening tag `<p>` at (1:1) doesn't have a matching closing tag `<\/p>` in the same scope.\"\n    \u2502   \u2502       \u2514\u2500\u2500 opening_tag: \"p\" (location: (1:1)-(1:2))\n    \u2502   \u2502       \n    \u2502   \u2502   \n    \u2502   \u251c\u2500\u2500 tag_opening: \"\" (location: (1:2)-(1:3))\n    \u2502   \u251c\u2500\u2500 children: []\n    \u2502   \u2514\u2500\u2500 is_void: false\n    \u2502   \n    \u2514\u2500\u2500 @ ERBContentNode (location: (1:3)-(1:20))\n        \u251c\u2500\u2500 errors: []\n        \u251c\u2500\u2500 tag_opening: \"\" (location: (1:18)-(1:20))\n        \u251c\u2500\u2500 parsed: true\n        \u2514\u2500\u2500 valid: true<\/pre>\n<p>\u4ee5\u4e0a\u306b\u3088\u308a\u3001ReActionView\u306fHerb\u30d1\u30fc\u30b5\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u3001HTML\u69cb\u9020\u3092\u7406\u89e3\u3057\u305f\u4e0a\u3067\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3092\u884c\u3044\u3001\u30d1\u30fc\u30b9\u6642\u306bHTML\u59a5\u5f53\u6027\u3092\u691c\u8a3c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u3053\u307e\u3067\u3001ReActionView\u306e\u6280\u8853\u7684\u306a\u4ed5\u7d44\u307f\u3092\u898b\u3066\u304d\u307e\u3057\u305f\u3002\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u5b9f\u969b\u306bReActionView\u3092\u8a66\u3057\u3066\u307f\u308b\u3053\u3068\u3067\u3001\u3069\u306e\u3088\u3046\u306a\u958b\u767a\u8005\u4f53\u9a13\u306e\u6539\u5584\u304c\u3042\u308b\u306e\u304b\u3092\u78ba\u8a8d\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<h2 id=\"ReActionView\u3092\u8a66\u3057\u3066\u307f\u308b\">ReActionView\u3092\u8a66\u3057\u3066\u307f\u308b<\/h2>\n<p>ReActionView\u306f\u65e2\u5b58\u306e<code>.html.erb<\/code>\u3068\u5b8c\u5168\u4e92\u63db\u3067\u3042\u308a\u306a\u304c\u3089\u3001HTML\u691c\u8a3c\u3084\u30c7\u30d0\u30c3\u30b0\u30e2\u30fc\u30c9\u306a\u3069\u306e\u958b\u767a\u8005\u4f53\u9a13\u3092\u5411\u4e0a\u3055\u305b\u308b\u6a5f\u80fd\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u306f\u975e\u5e38\u306b\u7c21\u5358\u3067\u3059\u3002<\/p>\n<h3 id=\"\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u624b\u9806\">\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u624b\u9806<\/h3>\n<p><strong>1. Gemfile\u306b\u8ffd\u52a0<\/strong><\/p>\n<pre class=\"code lang-ruby\" data-lang=\"ruby\" data-unlink=\"\"><span class=\"synPreProc\">gem<\/span> <span class=\"synSpecial\">\"<\/span><span class=\"synConstant\">reactionview<\/span><span class=\"synSpecial\">\"<\/span>, <span class=\"synSpecial\">\"<\/span><span class=\"synConstant\">~&gt; 0.1.4<\/span><span class=\"synSpecial\">\"<\/span>\n<\/pre>\n<p><strong>2. \u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3068\u8a2d\u5b9a<\/strong><\/p>\n<pre class=\"code bash\" data-lang=\"bash\" data-unlink=\"\">bundle install\nrails generate reactionview:install<\/pre>\n<p><strong>3. \u8a2d\u5b9a\u3092\u6709\u52b9\u5316<\/strong><\/p>\n<pre class=\"code lang-ruby\" data-lang=\"ruby\" data-unlink=\"\">\n<span class=\"synType\">ReActionView<\/span>.configure <span class=\"synStatement\">do<\/span> |config|\n  config.intercept_erb = <span class=\"synConstant\">true<\/span>\n  config.debug_mode = <span class=\"synType\">Rails<\/span>.env.development?\n<span class=\"synStatement\">end<\/span>\n<\/pre>\n<p>\u3053\u308c\u3060\u3051\u3067\u3001\u65e2\u5b58\u306e<code>.html.erb<\/code>\u30d5\u30a1\u30a4\u30eb\u304c\u81ea\u52d5\u7684\u306bHerb::Engine\u3067\u51e6\u7406\u3055\u308c\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2 id=\"\u6539\u5584\u3055\u308c\u305f\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\">\u6539\u5584\u3055\u308c\u305f\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8<\/h2>\n<p>ReActionView\u3092\u4f7f\u3046\u3068\u3001HTML\u69cb\u9020\u3092\u7406\u89e3\u3057\u305f\u4e0a\u3067\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u751f\u6210\u3055\u308c\u308b\u305f\u3081\u3001\u554f\u984c\u306e\u7279\u5b9a\u304c\u5bb9\u6613\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u4f8b\u3048\u3070\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b<code\/>\u30bf\u30b0\u3092\u9589\u3058\u5fd8\u308c\u305f\u30b3\u30fc\u30c9\u304c\u3042\u308b\u3068\u3057\u307e\u3059\uff1a<\/p>\n<pre class=\"code erb\" data-lang=\"erb\" data-unlink=\"\"\/>\n<li>\n  <strong>HTML\u691c\u8a3c<\/strong><\/p>\n<p>\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u306eHTML\u3092\u81ea\u52d5\u7684\u306b\u691c\u8a3c\u3057\u307e\u3059\u3002<br \/>\n  <!-- &uarr; <\/p>\n\n &#12364;&#38281;&#12376;&#12425;&#12428;&#12390;&#12356;&#12394;&#12356; -->\n<\/p>\n<\/li>\n<p>\u3053\u306e\u30da\u30fc\u30b8\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u3068\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u8a73\u7d30\u306a\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u8868\u793a\u3055\u308c\u307e\u3059\uff1a<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/res.cloudinary.com\/dyjw65doo\/image\/upload\/v1760780091\/KaigiOnRails-2025-day2-MarcoRoth\/ReActionView_Error.png\" alt=\"ReActionView\u306e\u30a8\u30e9\u30fc\u753b\u9762\"\/><\/p>\n<p>\u3053\u306e\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u898b\u308b\u3068\u3001<\/p>\n<p>\u30bf\u30b0\u306e\u9589\u3058\u5fd8\u308c\u3067\u3042\u308b\u3053\u3068\u3092\u4e00\u76ee\u3067\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u5f93\u6765\u306eActionView\u3067\u306f\u5b9f\u884c\u6642\u306b\u3057\u304b\u308f\u304b\u3089\u306a\u304b\u3063\u305f\u554f\u984c\u304c\u3001ReActionView\u3067\u306f\u30d1\u30fc\u30b9\u6642\u306b\u6b63\u78ba\u306b\u691c\u51fa\u3055\u308c\u3001\u308f\u304b\u308a\u3084\u3059\u304f\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u3055\u308c\u307e\u3059\u3002<\/p>\n<h2 id=\"\u30c7\u30d0\u30c3\u30b0\u30c4\u30fc\u30ebView-AnnotationsERB-Output-Hover\">\u30c7\u30d0\u30c3\u30b0\u30c4\u30fc\u30eb(View Annotations\u3001ERB Output Hover)<\/h2>\n<p>ReActionView\u306f\u3001\u958b\u767a\u8005\u304c\u30d3\u30e5\u30fc\u306e\u69cb\u9020\u3092\u7406\u89e3\u3057\u3084\u3059\u304f\u3059\u308b\u305f\u3081\u306e\u30c7\u30d0\u30c3\u30b0\u30c4\u30fc\u30eb\u3082\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\uff08\u958b\u767a\u74b0\u5883\u306e\u307f\uff09\u3002<\/p>\n<h3 id=\"View-Annotations\">View Annotations<\/h3>\n<p><code>config.debug_mode = true<\/code>\u306b\u8a2d\u5b9a\u3059\u308b\u3068\u3001\u30d6\u30e9\u30a6\u30b6\u3067\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3055\u308c\u305fHTML\u306b\u3001\u3069\u306eView\/Partial\/Component\u304b\u3089\u751f\u6210\u3055\u308c\u305f\u304b\u3092\u793a\u3059\u5883\u754c\u7dda\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002\u8907\u96d1\u306a\u30d3\u30e5\u30fc\u69cb\u6210\u3067\u3082\u3001\u3069\u306ePartial\u304c\u3069\u306e\u90e8\u5206\u3092\u62c5\u5f53\u3057\u3066\u3044\u308b\u306e\u304b\u304c\u4e00\u76ee\u77ad\u7136\u3067\u3059\u3002<\/p>\n<h3 id=\"ERB-Output-Hover\">ERB Output Hover<\/h3>\n<p>\u30d6\u30e9\u30a6\u30b6\u306e\u958b\u767a\u8005\u30c4\u30fc\u30eb\u3067HTML\u8981\u7d20\u306b\u30db\u30d0\u30fc\u3059\u308b\u3068\u3001\u305d\u306e\u8981\u7d20\u3092\u751f\u6210\u3057\u305f\u5143\u306eERB\u30b3\u30fc\u30c9\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002\u6700\u7d42\u7684\u306aHTML\u304b\u3089\u3001\u3069\u306e\u3088\u3046\u306aERB\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3067\u751f\u6210\u3055\u308c\u305f\u306e\u304b\u3092\u9006\u5f15\u304d\u3067\u304d\u308b\u305f\u3081\u3001\u30c7\u30d0\u30c3\u30b0\u52b9\u7387\u304c\u5927\u304d\u304f\u5411\u4e0a\u3057\u307e\u3059\u3002<\/p>\n<p>\u3053\u308c\u3089\u306e\u30c4\u30fc\u30eb\u306f\u3001\u5927\u898f\u6a21\u306aRails\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u30d3\u30e5\u30fc\u306e\u30c7\u30d0\u30c3\u30b0\u3092\u3059\u308b\u969b\u306b\u3001\u7279\u306b\u5a01\u529b\u3092\u767a\u63ee\u3059\u308b\u306e\u3067\u306f\u306a\u3044\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/res.cloudinary.com\/dyjw65doo\/image\/upload\/v1762693462\/KaigiOnRails-2025-day2-MarcoRoth\/ReActionView_hover.png\" alt=\"\u57cb\u3081\u8fbc\u307fRuby\u306e\u30db\u30d0\u30fc\u8868\u793a\u4f8b\"\/><\/p>\n<h2 id=\"HTML\u691c\u8a3c\u3068\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\">HTML\u691c\u8a3c\u3068\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af<\/h2>\n<p>ReActionView\u306e\u3082\u3046\u4e00\u3064\u306e\u5927\u304d\u306a\u7279\u5fb4\u306f\u3001\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u3067HTML\u691c\u8a3c\u3092\u884c\u3046\u70b9\u3067\u3059\u3002<\/p>\n<p>\u5148\u307b\u3069\u306e\u300c\u6539\u5584\u3055\u308c\u305f\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u300d\u3067\u898b\u305f\u3088\u3046\u306b\u3001\u30bf\u30b0\u306e\u9589\u3058\u5fd8\u308c\u306a\u3069\u306f\u30b5\u30fc\u30d0\u30fc\u8d77\u52d5\u6642\u3084\u30a2\u30af\u30bb\u30b9\u6642\u306b\u691c\u51fa\u3055\u308c\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u5c06\u6765\u7684\u306b\u306f\u30a8\u30c7\u30a3\u30bf\u7d71\u5408\u306b\u3088\u308a\u3001<strong>\u30b3\u30fc\u30c9\u3092\u66f8\u3044\u3066\u3044\u308b\u6700\u4e2d\u306b\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u3067\u691c\u8a3c<\/strong>\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308b\u3053\u3068\u304c\u671f\u5f85\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>Marco Roth\u6c0f\u306f\u3001Herb\u3092\u6d3b\u7528\u3057\u305f\u4ee5\u4e0b\u306e\u30c4\u30fc\u30eb\u3082\u958b\u767a\u3057\u3066\u3044\u307e\u3059\uff1a<\/p>\n<ul>\n<li><strong>Herb Language Server<\/strong>\uff1a\u30a8\u30c7\u30a3\u30bf\u3067\u306e\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u69cb\u6587\u30c1\u30a7\u30c3\u30af<\/li>\n<li><strong>Herb Formatter<\/strong>\uff1aERB\u30d5\u30a1\u30a4\u30eb\u306e\u81ea\u52d5\u30d5\u30a9\u30fc\u30de\u30c3\u30c8<\/li>\n<li><strong>Herb Linter<\/strong>\uff1a\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3084\u30a2\u30af\u30bb\u30b7\u30d3\u30ea\u30c6\u30a3\u306e\u30c1\u30a7\u30c3\u30af<\/li>\n<\/ul>\n<p>\u3053\u308c\u3089\u306e\u30c4\u30fc\u30eb\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001TypeScript\u3084Rust\u306e\u3088\u3046\u306a\u5f37\u529b\u306a\u958b\u767a\u4f53\u9a13\u3092\u3001ERB\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3067\u3082\u5b9f\u73fe\u3067\u304d\u308b\u672a\u6765\u304c\u898b\u3048\u3066\u304d\u307e\u3059\u3002\u5f93\u6765\u306f\u300c\u66f8\u3044\u3066\u5b9f\u884c\u3057\u3066\u307f\u306a\u3044\u3068\u308f\u304b\u3089\u306a\u3044\u300d\u3060\u3063\u305f\u554f\u984c\u304c\u3001\u300c\u66f8\u3044\u305f\u77ac\u9593\u306b\u308f\u304b\u308b\u300d\u306b\u5909\u308f\u308b\u306e\u3067\u3059\u3002<\/p>\n<p>\u672c\u8a18\u4e8b\u3067\u306f\u3001Kaigi on Rails 2025\u3067\u7d39\u4ecb\u3055\u308c\u305fReActionView\u306b\u3064\u3044\u3066\u3001\u305d\u306e\u6280\u8853\u7684\u306a\u4ed5\u7d44\u307f\u304b\u3089\u5b9f\u969b\u306e\u958b\u767a\u8005\u4f53\u9a13\u306e\u6539\u5584\u307e\u3067\u898b\u3066\u304d\u307e\u3057\u305f\u3002<\/p>\n<p>\u5f93\u6765\u306eActionView\u3068Erubi\u306f\u3001ERB\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3092\u6587\u5b57\u5217\u3068\u3057\u3066\u51e6\u7406\u3057\u3066\u3044\u305f\u305f\u3081\u3001HTML\u69cb\u9020\u306e\u691c\u8a3c\u3084\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u304c\u56f0\u96e3\u3067\u3057\u305f\u3002ReActionView\u306f\u3001Herb\u30d1\u30fc\u30b5\u30fc\u306b\u3088\u308b\u30a2\u30d7\u30ed\u30fc\u30c1\u3067\u3001\u3053\u306e\u9577\u5e74\u306e\u8ab2\u984c\u3092\u89e3\u6c7a\u3057\u3088\u3046\u3068\u3057\u3066\u3044\u307e\u3059\u3002<br \/>\u62bd\u8c61\u69cb\u6587\u6728\uff08AST\uff09\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30d1\u30fc\u30b9\u6642\u306bHTML\u59a5\u5f53\u6027\u3092\u691c\u8a3c\u3057\u3001\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u6539\u5584\u3057\u3001\u30c7\u30d0\u30c3\u30b0\u30c4\u30fc\u30eb\u3092\u63d0\u4f9b\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n<hr\/>\n<p>Techouse\u3067\u306f\u3001\u793e\u4f1a\u8ab2\u984c\u306e\u89e3\u6c7a\u306b\u4e00\u7dd2\u306b\u53d6\u308a\u7d44\u3080\u30a8\u30f3\u30b8\u30cb\u30a2\u3092\u52df\u96c6\u3057\u3066\u304a\u308a\u307e\u3059\u3002<br \/>\n\u3054\u5fdc\u52df\u304a\u5f85\u3061\u3057\u3066\u304a\u308a\u307e\u3059\u3002<\/p>\n<p><iframe src=\"https:\/\/hatenablog-parts.com\/embed?url=https%3A%2F%2Fjp.techouse.com%2Fjobs%2F16\" title=\"\u682a\u5f0f\u4f1a\u793eTechouse | \u30c6\u30c3\u30af\u30ea\u30fc\u30c9\" class=\"embed-card embed-webcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 155px; max-width: 500px; margin: 10px 0px;\" loading=\"lazy\"><\/iframe><cite class=\"hatena-citation\"><a target=\"_blank\" href=\"https:\/\/jp.techouse.com\/jobs\/16\">jp.techouse.com<\/a><\/cite><\/p>\n<\/div>\n<p><script>(function(d, s, id) {\n  var js, fjs = d.getElementsByTagName(s)[0];\n  if (d.getElementById(id)) return;\n  js = d.createElement(s); js.id = id;\n  js.src = \"\/\/connect.facebook.net\/ja_JP\/sdk.js#xfbml=1&appId=719729204785177&version=v17.0\";\n  fjs.parentNode.insertBefore(js, fjs);\n}(document, 'script', 'facebook-jssdk'));<\/script><br \/>\n<br \/>\n<br \/><a href=\"https:\/\/developers.techouse.com\/entry\/KaigiOnRails-2025-day2-MarcoRoth\">\u5143\u306e\u8a18\u4e8b\u3092\u78ba\u8a8d\u3059\u308b <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"\u3053\u3093\u306b\u3061\u306f\u3001\u682a\u5f0f\u4f1a\u793eTechouse\u3067\u30a4\u30f3\u30bf\u30fc\u30f3\u3068\u3057\u3066\u50cd\u3044\u3066\u3044\u308bWaki Yuuku\u3067\u3059\u3002 \u672c\u8a18\u4e8b\u3067\u306f\u3001Kaigi on Rails 2025\u3067\u7d39\u4ecb\u3055\u308c\u305f\u6b21\u4e16\u4ee3\u306eERB\u30a8\u30f3\u30b8\u30f3\u300cReActionView\u300d\u306e\u6280\u8853\u306b\u3064\u3044\u3066\u307e [&hellip;]","protected":false},"author":1,"featured_media":23468,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-23467","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-company-tec"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Kaigi on Rails 2025 ActionView\u304b\u3089ReActionView\u3078 - HTML\u69cb\u9020\u3092\u7406\u89e3\u3059\u308bERB\u30a8\u30f3\u30b8\u30f3 - \u30dd\u30b1\u30b3\u30f3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, 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