{"id":2083,"date":"2011-03-03T16:22:53","date_gmt":"2011-03-03T07:22:53","guid":{"rendered":"http:\/\/www.moonmile.net\/blog\/?p=2083"},"modified":"2011-03-03T16:24:16","modified_gmt":"2011-03-03T07:24:16","slug":"%e3%82%82%e3%81%86-linq-to-xml-%e3%81%af%e3%81%84%e3%82%89%e3%81%aa%e3%81%84%e8%ac%80%e7%95%a5%e7%b7%a8","status":"publish","type":"post","link":"http:\/\/www.moonmile.net\/blog\/archives\/2083","title":{"rendered":"\u3082\u3046 LINQ to XML \u306f\u3044\u3089\u306a\u3044(\u8b00\u7565\u7de8)"},"content":{"rendered":"

\u65e2\u306b\u3044\u304f\u3064\u304b\u306e\u6a5f\u80fd\u3092\u8ffd\u52a0\u3057\u3066\u3057\u307e\u3063\u305f\u306e\u3067\u3001\u5b9f\u88c5\u306f\u5148\u306b\u9032\u3093\u3067\u3044\u308b\u306e\u3067\u3059\u304c\u3001\u3061\u3087\u3063\u3068\u6587\u5b57\u5217(string)\u7d61\u307f\u306e\u3068\u3053\u308d\u3092\u3002<\/p>\n

\r\n\/\/ \u30eb\u30fc\u30c8\u8981\u7d20\u3092\u53d6\u5f97\u3059\u308b\r\n   EXElement el = doc \/ "members";\r\n\r\n\/\/ person \u8981\u7d20\u3092\u53d6\u5f97\u3059\u308b\r\n   EXElements els = doc \/ "members" \/ "person";\r\n<\/pre>\n
\u3053\u306e\u3088\u3046\u306b\u3001\u304d\u3063\u3061\u308a\u3068\u578b\u306b\u4fdd\u5b58\u3057\u3066\u3082\u3044\u3044\u306e\u3067\u3059\u304c\u3001\u6700\u8fd1\u306e\u6d41\u884c\u306f\u578b\u63a8\u8ad6\u3067\u3059\u3088\u306d\u3002
\n\u306a\u306e\u3067\u3001C# 3.0 \u306e\u5834\u5408\u306f\u3001var \u3092\u4f7f\u3063\u3066<\/p>\n
\r\n\/\/ \u30eb\u30fc\u30c8\u8981\u7d20\u3092\u53d6\u5f97\u3059\u308b\r\n   var el = doc \/ "members";\r\n\r\n\/\/ person \u8981\u7d20\u3092\u53d6\u5f97\u3059\u308b\r\n   var els = doc \/ "members" \/ "person";\r\n<\/pre>\n
\u306e\u3088\u3046\u306b\u3057\u3066\u3082\u3044\u3044\u306e\u3067\u3059\u304c\u3001\u4eca\u56de\u306f\u3010\u578b\u63a8\u8ad6\u3011\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u3058\u3083\u306a\u304f\u3066\u3001\u3010\u53b3\u5bc6\u306a\u578b\u5ba3\u8a00\u3011\u3092\u5fdc\u7528\u3057\u3066\u3044\u304d\u307e\u3059\u3002\u3064\u307e\u308a\u306f\u3001\u6697\u9ed9\u306e\u30ad\u30e3\u30b9\u30c8(implicit)\u3092\u4f7f\u3063\u3066\u3044\u308b\u3088\u3046\u306b\u898b\u3048\u3066\u3001\u5909\u63db\u5148\u306e\u578b\u304c\u632f\u308b\u821e\u3044\u3092\u5909\u3048\u3066\u3044\u308b\u3001\u3068\u3044\u3046\u53d7\u3051\u5074\u306e\u3010\u578b\u3011\u304c\u91cd\u8981\u306b\u306a\u308b\u3068\u3044\u3046\u30a2\u30d7\u30ed\u30fc\u30c1\u3067\u3059\u3002
\n\u578b\u63a8\u8ad6\u306e\u5834\u5408\u306f\u3001\u6700\u521d\u306b\u578b\u304c\u6c7a\u5b9a\u3057\u3066\u3044\u306a\u304f\u3066\u5f8c\u304b\u3089\u6c7a\u5b9a\u3059\u308b\u5834\u5408\u3067\u3082 OK \u3063\u3066\u306a\u611f\u3058\u3067\u3059\u304c\u3001\u81ea\u5206\u304c\u4f7f\u3044\u3084\u3059\u3044\u578b\u306b\u5f53\u3066\u306f\u3081\u308b\u5f62\u3067\u5024\u3092\u53d7\u3051\u53d6\u308b\u3001\u3068\u3044\u3046\u9055\u3046\u30a2\u30d7\u30ed\u30fc\u30c1\u306a\u306e\u3067\u3059\u306d…\u3063\u3066\u3001\u672c\u5f53\u306b\u9055\u3046\u306e\u304b\u3069\u3046\u304b\u3001\u3088\u304f\u5206\u304b\u3089\u306a\u3044\u306e\u3067\u3059\u304c\u3001\u306a\u3093\u3068\u306a\u304f\u5bfe\u7167\u6027\u304c\u3042\u308b\u304b\u306a\u3041\u3068\u3002<\/p>\n
\u3055\u3066\u3001\u6b21\u306e\u30b3\u30fc\u30c9\u3092\u898b\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
\r\n\/\/ \u30eb\u30fc\u30c8\u8981\u7d20\u3092\u53d6\u5f97\u3059\u308b\r\n   string val = doc \/ "members";\r\n\r\n\/\/ person \u8981\u7d20\u3092\u53d6\u5f97\u3059\u308b\r\n   string[] vals = doc \/ "members" \/ "person";\r\n<\/pre>\n
\u3053\u306e\u5834\u5408\u3001string \u3068 sting[] \u578b\u304c\u660e\u793a\u7684\u306b\u4f7f\u308f\u308c\u3066\u3044\u307e\u3059\u3002members \u8981\u7d20\u306e\u5024\u3092\u6587\u5b57\u5217\u3067\u53d7\u3051\u53d6\u308a\u305f\u3044\u3001\u8907\u6570\u3042\u308b person \u8981\u7d20\u306e\u5024\u3092\u6587\u5b57\u5217\u306e\u914d\u5217\u3067\u53d7\u3051\u53d6\u308a\u305f\u3044\u3001\u3068\u3044\u3046\u3010\u610f\u56f3\u3011\u304c\u3053\u306e\u6642\u70b9\u3067\u660e\u78ba\u306b\u306a\u308a\u307e\u3059\u3002
\n\u3053\u3053\u3067 var \u306e\u5834\u5408\u3092\u4f7f\u3063\u3066\u3057\u307e\u3046\u3068\u3001\u3053\u306e\u6642\u70b9\u3067\u306f\u3001string \u306b\u5165\u308c\u3088\u3046\u3068\u3057\u3066\u3044\u308b\u306e\u304b\u3001EXElement \u306b\u5165\u308c\u3088\u3046\u3068\u3057\u3066\u3044\u308b\u306e\u304b\u5206\u304b\u308a\u307e\u305b\u3093\u3002<\/p>\n
\u3053\u3093\u306a\u98a8\u306b\u3001\u3010\u578b\u3092\u53b3\u5bc6\u306b\u3011\u6307\u5b9a\u3059\u308b\u3053\u3068\u306b\u3088\u308b\u30e1\u30ea\u30c3\u30c8\u304c\u5927\u304d\u3044\u308f\u3051\u3067\u3059\u3002<\/p>\n
# \u5f53\u7136\u3067\u3059\u304c\u3001\u3053\u306e\u6280\u306f Ruby \u3084 PHP \u306a\u3069\u306e\u578b\u304c\u306a\u3044\u30b9\u30af\u30ea\u30d7\u30c8\u8a00\u8a9e\u3067\u306f\u4f7f\u3048\u307e\u305b\u3093\u3002\u3082\u3057\u3001\u578b\u306e\u3042\u308b\u30b9\u30af\u30ea\u30d7\u30c8\u8a00\u8a9e\u304c\u3042\u308c\u3070\uff08\u79c1\u306f\u3088\u304f\u77e5\u3089\u306a\u3044\u306e\u3067\u3059\u304c\uff09\u3001\u3053\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u304c\u53d6\u308c\u307e\u3059\u3002<\/p>\n
\u66f4\u306b\u3001\u4e0d\u601d\u8b70\u306a\u30a2\u30d7\u30ed\u30fc\u30c1\u3092\u7d39\u4ecb\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n
\r\n\/\/ person \u8981\u7d20\u3092\u914d\u5217\u3067\u53d6\u5f97\u3059\u308b\r\n   string[] vals = doc \/ "members" \/ "person";\r\n\r\n\/\/ person \u8981\u7d20\u3092\u3072\u3068\u3064\u53d6\u5f97\u3059\u308b\r\n   string val = doc \/ "members" \/ "person";\r\n<\/pre>\n
\u3053\u306e\u4f8b\u3067\u306f\u3001doc\/members\/person \u306e\u914d\u5217\u3042\u308b\u3044\u6587\u5b57\u5217\u3092\u53d6\u5f97\u3057\u307e\u3059\u3002
\n\u540c\u3058\u3088\u3046\u306b\u6307\u5b9a\u3057\u3066\u3044\u308b\u306e\u306b\u3001\u914d\u5217\u3067\u53d6\u308c\u305f\u308a\u3001\u6587\u5b57\u5217\u3060\u3051\u3067\u53d6\u308c\u305f\u308a\u3059\u308b\u306e\u306f\u4e0d\u601d\u8b70\u3067\u3057\u3087\u3046\uff1f<\/p>\n
\u3067\u3082\u3001\u3053\u306e\u66f8\u304d\u65b9\u306f XML \u3092\u89e3\u6790\u3059\u308b\u5074\u3068\u3057\u3066\u306f\u3001\u660e\u767d\u306a\u3053\u3068\u3067\u3082\u3042\u308b\u306e\u3067\u3059\u3002
\nXML \u304b\u3089\u30c7\u30fc\u30bf\u3092\u53d6\u5f97\u3059\u308b\u5834\u5408\u3001\u3042\u3089\u304b\u3058\u3081 XML \u306e\u30c7\u30fc\u30bf\u69cb\u9020\u304c\u5206\u304b\u3063\u3066\u3044\u308b\u3053\u3068\u304c\u591a\u3044\u306e\u3067\u3059\u3002DTD \u3092\u6307\u5b9a\u3055\u308c\u306a\u3044\u3068\u3057\u3066\u3082\u3001\u5927\u307e\u304b\u306a\u69cb\u9020\u304c\u5206\u304b\u3063\u3066\u3044\u308b\u5834\u5408\u304c\u307b\u3068\u3093\u3069\u3067\u3057\u3087\u3046\u3002<\/p>\n
\u305d\u3046\u306a\u308c\u3070\u3001\/members\/person \u304c\u5358\u6570\u306a\u306e\u304b\u3001\u8907\u6570\u306a\u306e\u304b\u306f\u3001\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3092\u3059\u308b\u3068\u304d\u306b\u6c7a\u307e\u3063\u3066\u3044\u307e\u3059\u3088\u306d\u3002
\n\u306a\u306e\u3067\u3001\u3069\u3046\u305b XML \u69cb\u9020\u3092\u628a\u63e1\u3057\u3066\u3044\u308b\u306e\u3067\u3042\u308c\u3070\u3001\u305d\u308c\u3092\u5229\u7528\u3057\u3066\u3001\u5358\u6570\u306e string \u3082\u540c\u69d8\u306b\u53d6\u308c\u308b\u3088\u3046\u306b\u3057\u3066\u3057\u307e\u3046\u307b\u3046\u304c\u81ea\u7136\u3067\u3059\u3002<\/p>\n
# \u305f\u3068\u3048\u3070\u3001\u30d5\u30a1\u30df\u30ec\u30b9\u306e\u5e97\u54e1\u304c\u3001\u3072\u3068\u308a\u306e\u304a\u5ba2\u3092\u76ee\u306e\u524d\u306b\u3057\u3066\u300c\u305f\u3060\u3044\u307e\u300120\u540d\u306e\u304a\u5ba2\u69d8\u306f\u5165\u308c\u307e\u305b\u3093\u300d\u3068\u8a00\u3046\u3053\u3068\u306f\u306a\u3044…\u8a33\u3067\u3082\u306a\u3044\u3051\u308c\u3069\u3001\u307b\u307c\u7121\u3044\u3067\u3059\u3088\u306d\u3002\u307e\u305a\u306f\u300c\u304a\u3072\u3068\u308a\u3067\u3057\u3087\u3046\u304b\uff1f\u300d\u3068\u5c0b\u306d\u308b\u306e\u304c\u81ea\u7136\u3067\u3059\u3002<\/p>\n
\u306a\u306e\u3067\u3001\u5358\u6570\u3067\u53d6\u308b\u306e\u304b\u3001\u914d\u5217\u3067\u53d6\u308b\u306e\u304b\u3092\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3057\u3066\u3044\u308b\u3068\u304d\u306b\u5206\u3051\u308b\u306e\u3082\u81ea\u7136\u3067\u3059\u3002\u3063\u3066\u3044\u3046\u306e\u304c\u3001\u3053\u306e\u30b3\u30fc\u30c9\u306e\u4e3b\u65e8\u3067\u3059\u3002<\/p>\n
\u3068\u3001\u9577\u3005\u3068\u66f8\u304d\u307e\u3057\u305f\u304c\u3001\u5b9f\u306f\u30b3\u30fc\u30c9\u304c\u975e\u5e38\u306b\u77ed\u3044\u304b\u3089\u306a\u306e\u3067\u3059\u3002EXElements \u30af\u30e9\u30b9\u304c\u3067\u304d\u3066\u3044\u308b\u306e\u3067\u3001\u3053\u308c\u3092 string[] \u3084 string \u306b\u30ad\u30e3\u30b9\u30c8\u3059\u308b\u30e1\u30bd\u30c3\u30c9\u3092\u4f5c\u308a\u307e\u3059\u3002<\/p>\n
\r\npublic class EXElements : List<EXElement>\r\n{\r\n\t\/\/\/ <summary>\r\n\t\/\/\/ \u6587\u5b57\u5217\u306e\u914d\u5217\u306b\u30ad\u30e3\u30b9\u30c8\r\n\t\/\/\/ <\/summary>\r\n\t\/\/\/ <param name=&quot;els&quot;><\/param>\r\n\t\/\/\/ <param name=&quot;tag&quot;><\/param>\r\n\t\/\/\/ <returns><\/returns>\r\n\tpublic static implicit operator string[]( EXElements els ) \r\n\t{\r\n\t    List<string> items = new List<string>();\r\n\t    if (els.Count > 0)\r\n\t    {\r\n\t        foreach (EXElement el in els)\r\n\t        {\r\n\t            items.Add(el.Value);\r\n\t        }\r\n\t    }\r\n\t    return items.ToArray();\r\n\t}\r\n\r\n\t\/\/\/ <summary>\r\n\t\/\/\/ \u6587\u5b57\u5217\u306b\u30ad\u30e3\u30b9\u30c8\r\n\t\/\/\/ <\/summary>\r\n\t\/\/\/ <param name=&quot;els&quot;><\/param>\r\n\t\/\/\/ <returns><\/returns>\r\n\tpublic static implicit operator string(EXElements els)\r\n\t{\r\n\t    if (els.Count == 0)\r\n\t    {\r\n\t        return &quot;&quot;;\r\n\t    }\r\n\t    else\r\n\t    {\r\n\t        return els[0].Value;\r\n\t    }\r\n\t}\r\n}\r\n<\/pre>\n
\u99ac\u9e7f\u99ac\u9e7f\u3057\u3044\u307b\u3069\u3001\u7c21\u5358\u306a\u30b3\u30fc\u30c9\u3067\u3059\u306d\u3002implicit \u3067\u6697\u9ed9\u306b\u30ad\u30e3\u30b9\u30c8\u3092\u6307\u5b9a\u3057\u3066\u304a\u3044\u3066\u3001\u30ad\u30e3\u30b9\u30c8\u5148\u306e string[] \u3042\u308b\u3044\u306f string \u306b\u3042\u308f\u305b\u308b\u3060\u3051\u3067\u3059\u3002<\/p>\n
\u3055\u3066\u3001\u304a\u6b21\u306f\u6bd4\u8f03\u6f14\u7b97\u5b50(==)\u3092\u591a\u91cd\u5b9a\u7fa9\u3057\u3066\u3001\u5c5e\u6027\u306e\u5024\u306b\u3088\u3063\u3066\u62bd\u51fa\u3092\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u65e2\u306b\u3044\u304f\u3064\u304b\u306e\u6a5f\u80fd\u3092\u8ffd\u52a0\u3057\u3066\u3057\u307e\u3063\u305f\u306e\u3067\u3001\u5b9f\u88c5\u306f\u5148\u306b\u9032\u3093\u3067\u3044\u308b\u306e\u3067\u3059\u304c\u3001\u3061\u3087\u3063\u3068\u6587\u5b57\u5217(string)\u7d61\u307f\u306e\u3068\u3053\u308d\u3092\u3002 \/\/ \u30eb\u30fc\u30c8\u8981\u7d20\u3092\u53d6\u5f97\u3059\u308b EXElement el = doc \/ "members&q … \u7d9a\u304d\u3092\u8aad\u3080 →<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[3,23],"tags":[],"class_list":["post-2083","post","type-post","status-publish","format-standard","hentry","category-dev","category-csharp"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/posts\/2083","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/comments?post=2083"}],"version-history":[{"count":2,"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/posts\/2083\/revisions"}],"predecessor-version":[{"id":2085,"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/posts\/2083\/revisions\/2085"}],"wp:attachment":[{"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/media?parent=2083"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/categories?post=2083"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/tags?post=2083"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}