{"id":124,"date":"2010-05-27T23:35:04","date_gmt":"2010-05-27T23:35:04","guid":{"rendered":"c8ffe9a587b126f152ed3d89a146b445"},"modified":"2010-05-27T23:35:04","modified_gmt":"2010-05-27T23:35:04","slug":"","status":"publish","type":"post","link":"https:\/\/www.xiaobo.li\/notes\/archives\/124","title":{"rendered":"\u6b63\u5219\u8868\u8fbe\u5f0f--\u9012\u5f52\u5339\u914d\u3001\u975e\u8d2a\u5a6a\u5339\u914d\u4e0e\u5206\u7ec4\u66ff\u6362"},"content":{"rendered":"

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[Perl \u548c PHP \u7684\u793a\u4f8b\u4ee3\u7801]
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\\( ( [^()] | \\(([^()])*\\) )* \\)
<font> ( (?!<\/?font>). | (<font>((?!<\/?font>).)*<\/font>) )* <\/font> <\/p>\n

PHP \u548c GRETA \u7684\u7b80\u4fbf\u4e4b\u5904\u5728\u4e8e\uff0c\u5339\u914d\u5d4c\u5957(n-1)\u5c42\u7684\u8868\u8fbe\u5f0f\u7528 (?R) \u8868\u793a\uff1a
\\( ( [^()] | (?R) )* \\)
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 <\/div>\n
 <\/div>\n
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\u4e3e\u4f8b\uff1a"d(\\w+?)d(\\w+?)d(\\w+?)z" \u5339\u914d "ddddddddddd..." \u65f6\uff0c\u5c06\u82b1\u8d39\u8f83\u957f\u4e00\u6bb5\u65f6\u95f4\u624d\u80fd\u5224\u65ad\u51fa\u5339\u914d\u5931\u8d25 \u3002
\u6548\u7387\u9677\u9631\u7684\u907f\u514d\uff1a
\u907f\u514d\u6548\u7387\u9677\u9631\u7684\u539f\u5219\u662f\uff1a\u907f\u514d“\u591a\u91cd\u5faa\u73af”\u7684“\u5c1d\u8bd5\u5339\u914d”\u3002\u5e76\u4e0d\u662f\u8bf4\u975e\u8d2a\u5a6a\u5339\u914d\u5c31\u662f\u4e0d\u597d\u7684\uff0c\u53ea\u662f\u5728\u8fd0\u7528\u975e\u8d2a\u5a6a\u5339\u914d\u7684\u65f6\u5019\uff0c\u9700\u8981\u6ce8\u610f\u907f\u514d\u8fc7\u591a“\u5faa\u73af\u5c1d\u8bd5”\u7684\u95ee\u9898\u3002
\u60c5 \u51b5\u4e00\uff1a\u5bf9\u4e8e\u53ea\u6709\u4e00\u4e2a\u975e\u8d2a\u5a6a\u6216\u8005\u8d2a\u5a6a\u5339\u914d\u7684\u8868\u8fbe\u5f0f\u6765\u8bf4\uff0c\u4e0d\u5b58\u5728\u6548\u7387\u9677\u9631\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u8981\u5339\u914d\u7c7b\u4f3c "<td> \u5185\u5bb9 <\/td>" \u8fd9\u6837\u7684\u6587\u672c\uff0c\u8868\u8fbe\u5f0f "<td>([^<]|<(?!\/td>))*<\/td>" \u548c "<td>((?!<\/td>).)*<\/td>" \u548c "<td>.*?<\/td>" \u7684\u6548\u7387\u662f\u5b8c\u5168\u76f8\u540c\u7684\u3002
\u60c5\u51b5\u4e8c\uff1a\u5982\u679c\u4e00\u4e2a\u8868\u8fbe\u5f0f\u4e2d\u6709\u591a\u4e2a\u672a\u77e5\u5339\u914d\u6b21\u6570\u7684\u8868\u8fbe\u5f0f\uff0c\u5e94\u9632\u6b62\u8fdb\u884c\u4e0d\u5fc5\u8981\u7684\u5c1d\u8bd5\u5339\u914d\u3002
\u6bd4\u5982\uff0c\u5bf9\u8868\u8fbe\u5f0f "<script language='(.*?)'>(.*?)<\/script>" \u6765\u8bf4\uff0c \u5982\u679c\u524d\u9762\u90e8\u5206\u8868\u8fbe\u5f0f\u5728\u9047\u5230 "<script language='vbscript'>" \u65f6\u5339\u914d\u6210\u529f\u540e\uff0c\u800c\u540e\u8fb9\u7684 "(.*?)<\/script>" \u5374\u5339\u914d\u5931\u8d25\uff0c\u5c06\u5bfc\u81f4\u7b2c\u4e00\u4e2a ".*?" \u589e\u52a0\u5339\u914d\u6b21\u6570\u518d\u5c1d\u8bd5\u3002\u800c\u5bf9\u4e8e\u8868\u8fbe\u5f0f\u771f\u6b63\u76ee\u7684\uff0c\u8ba9\u7b2c\u4e00\u4e2a ".*?" \u589e\u52a0\u5339\u914d\u6210“vbscript'>”\u662f\u4e0d\u5bf9\u7684\uff0c\u56e0\u6b64\u8fd9\u79cd\u5c1d\u8bd5\u662f\u4e0d\u5fc5\u8981\u7684\u5c1d\u8bd5\u3002
\u56e0\u6b64\uff0c\u5bf9\u4f9d\u9760\u8fb9\u754c\u6765\u8bc6\u522b\u7684\u8868\u8fbe\u5f0f\uff0c\u4e0d\u8981\u8ba9\u672a\u77e5\u5339\u914d\u6b21\u6570\u7684\u90e8\u5206\u8de8 \u8fc7\u5b83\u7684\u8fb9\u754c\u3002\u524d\u9762\u7684\u8868\u8fbe\u5f0f\u4e2d\uff0c\u7b2c\u4e00\u4e2a ".*?" \u5e94\u8be5\u6539\u5199\u6210 "[^']*"\u3002\u540e\u8fb9\u90a3\u4e2a ".*?" \u7684\u53f3\u8fb9\u518d\u6ca1\u6709\u672a\u77e5\u5339\u914d\u6b21\u6570\u7684\u8868\u8fbe\u5f0f\uff0c\u56e0\u6b64\u8fd9\u4e2a\u975e\u8d2a\u5a6a\u5339\u914d\u6ca1\u6709\u6548\u7387\u9677\u9631\u3002\u4e8e\u662f\uff0c\u8fd9\u4e2a\u5339\u914d\u811a\u672c\u5757\u7684\u8868\u8fbe\u5f0f\uff0c\u5e94\u8be5\u5199\u6210\uff1a"<script language='([^']*)'>(.*?)<\/script>" \u66f4\u597d\u3002<\/div>\n
 <\/div>\n
3.\u6b63\u5219\u8868\u8fbe\u5f0f\uff0d\u5206\u7ec4\u6784\u9020<\/strong><\/p>\n

\u5206\u7ec4\u6784\u9020\u4f7f\u60a8\u53ef\u4ee5\u6355\u83b7\u5b50\u8868\u8fbe\u5f0f\u7ec4\u5e76\u63d0\u9ad8\u5177\u6709\u975e\u6355\u83b7\u9884\u6d4b\u5148\u884c\u548c\u56de\u987e\u540e\u53d1\u4fee\u9970\u7b26\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u6548\u7387\u3002\u4e0b\u8868\u63cf\u8ff0\u4e86\u6b63\u5219\u8868\u8fbe\u5f0f\u5206\u7ec4\u6784\u9020\u3002
\u5206\u7ec4\u6784\u9020 \u8bf4\u660e
( ) \u6355\u83b7\u5339\u914d\u7684\u5b50\u5b57\u7b26\u4e32\uff08\u6216\u975e\u6355\u83b7\u7ec4\uff1b\u6709\u5173\u8be6\u7ec6\u4fe1\u606f\uff0c\u8bf7\u53c2\u89c1\u6b63\u5219\u8868\u8fbe\u5f0f\u9009\u9879\u4e2d\u7684 ExplicitCapture \u9009\u9879\uff09\u3002\u4f7f\u7528 () \u7684\u6355\u83b7\u6839\u636e\u5de6\u62ec\u53f7\u7684\u987a\u5e8f\u4ece 1 \u5f00\u59cb\u81ea\u52a8\u7f16\u53f7\u3002\u6355\u83b7\u5143\u7d20\u7f16\u53f7\u4e3a\u96f6\u7684\u7b2c\u4e00\u4e2a\u6355\u83b7\u662f\u7531\u6574\u4e2a\u6b63\u5219\u8868\u8fbe\u5f0f\u6a21\u5f0f\u5339\u914d\u7684\u6587\u672c\u3002
(?<name> ) \u5c06\u5339\u914d\u7684\u5b50\u5b57\u7b26\u4e32\u6355\u83b7\u5230\u4e00\u4e2a\u7ec4\u540d\u79f0\u6216\u7f16\u53f7\u540d\u79f0\u4e2d\u3002\u7528\u4e8e name \u7684\u5b57\u7b26\u4e32\u4e0d\u80fd\u5305\u542b\u4efb\u4f55\u6807\u70b9\u7b26\u53f7\uff0c\u5e76\u4e14\u4e0d\u80fd\u4ee5\u6570\u5b57\u5f00\u5934\u3002\u53ef\u4ee5\u4f7f\u7528\u5355\u5f15\u53f7\u66ff\u4ee3\u5c16\u62ec\u53f7\uff0c\u4f8b\u5982 (?'name')\u3002
(?<name1-name2> ) \u5e73\u8861\u7ec4\u5b9a\u4e49\u3002\u5220\u9664\u5148\u524d\u5b9a\u4e49\u7684 name2 \u7ec4\u7684\u5b9a\u4e49\u5e76\u5728 name1 \u7ec4\u4e2d\u5b58\u50a8\u5148\u524d\u5b9a\u4e49\u7684 name2 \u7ec4\u548c\u5f53\u524d\u7ec4\u4e4b\u95f4\u7684\u95f4\u9694\u3002\u5982\u679c\u672a\u5b9a\u4e49 name2 \u7ec4\uff0c\u5219\u5339\u914d\u5c06\u56de\u6eaf\u3002\u7531\u4e8e\u5220\u9664 name2 \u7684\u6700\u540e\u4e00\u4e2a\u5b9a\u4e49\u4f1a\u663e\u793a name2 \u7684\u5148\u524d\u5b9a\u4e49\uff0c\u56e0\u6b64\u8be5\u6784\u9020\u5141\u8bb8\u5c06 name2 \u7ec4\u7684\u6355\u83b7\u5806\u6808\u7528\u4f5c\u8ba1\u6570\u5668\u4ee5\u8ddf\u8e2a\u5d4c\u5957\u6784\u9020\uff08\u5982\u62ec\u53f7\uff09\u3002\u5728\u6b64\u6784\u9020\u4e2d\uff0cname1 \u662f\u53ef\u9009\u7684\u3002\u53ef\u4ee5\u4f7f\u7528\u5355\u5f15\u53f7\u66ff\u4ee3\u5c16\u62ec\u53f7\uff0c\u4f8b\u5982 (?'name1-name2')\u3002
(?: ) \u975e\u6355\u83b7\u7ec4\u3002
(?imnsx-imnsx: ) \u5e94\u7528\u6216\u7981\u7528\u5b50\u8868\u8fbe\u5f0f\u4e2d\u6307\u5b9a\u7684\u9009\u9879\u3002\u4f8b\u5982\uff0c(?i-s: ) \u5c06\u6253\u5f00\u4e0d\u533a\u5206\u5927\u5c0f\u5199\u5e76\u7981\u7528\u5355\u884c\u6a21\u5f0f\u3002\u6709\u5173\u8be6\u7ec6\u4fe1\u606f\uff0c\u8bf7\u53c2\u89c1\u6b63\u5219\u8868\u8fbe\u5f0f\u9009\u9879\u3002
(?= ) \u96f6\u5bbd\u5ea6\u6b63\u9884\u6d4b\u5148\u884c\u65ad\u8a00\u3002\u4ec5\u5f53\u5b50\u8868\u8fbe\u5f0f\u5728\u6b64\u4f4d\u7f6e\u7684\u53f3\u4fa7\u5339\u914d\u65f6\u624d\u7ee7\u7eed\u5339\u914d\u3002\u4f8b\u5982\uff0c\\w+(?=\\d) \u4e0e\u540e\u8ddf\u6570\u5b57\u7684\u5355\u8bcd\u5339\u914d\uff0c\u800c\u4e0d\u4e0e\u8be5\u6570\u5b57\u5339\u914d\u3002\u6b64\u6784\u9020\u4e0d\u4f1a\u56de\u6eaf\u3002
(?! ) \u96f6\u5bbd\u5ea6\u8d1f\u9884\u6d4b\u5148\u884c\u65ad\u8a00\u3002\u4ec5\u5f53\u5b50\u8868\u8fbe\u5f0f\u4e0d\u5728\u6b64\u4f4d\u7f6e\u7684\u53f3\u4fa7\u5339\u914d\u65f6\u624d\u7ee7\u7eed\u5339\u914d\u3002\u4f8b\u5982\uff0c\\b(?!un)\\w+\\b \u4e0e\u4e0d\u4ee5 un \u5f00\u5934\u7684\u5355\u8bcd\u5339\u914d\u3002
(?<= ) \u96f6\u5bbd\u5ea6\u6b63\u56de\u987e\u540e\u53d1\u65ad\u8a00\u3002\u4ec5\u5f53\u5b50\u8868\u8fbe\u5f0f\u5728\u6b64\u4f4d\u7f6e\u7684\u5de6\u4fa7\u5339\u914d\u65f6\u624d\u7ee7\u7eed\u5339\u914d\u3002\u4f8b\u5982\uff0c(?<=19)99 \u4e0e\u8ddf\u5728 19 \u540e\u9762\u7684 99 \u7684\u5b9e\u4f8b\u5339\u914d\u3002\u6b64\u6784\u9020\u4e0d\u4f1a\u56de\u6eaf\u3002
(?<! ) \u96f6\u5bbd\u5ea6\u8d1f\u56de\u987e\u540e\u53d1\u65ad\u8a00\u3002\u4ec5\u5f53\u5b50\u8868\u8fbe\u5f0f\u4e0d\u5728\u6b64\u4f4d\u7f6e\u7684\u5de6\u4fa7\u5339\u914d\u65f6\u624d\u7ee7\u7eed\u5339\u914d\u3002
(?> ) \u975e\u56de\u6eaf\u5b50\u8868\u8fbe\u5f0f\uff08\u4e5f\u79f0\u4e3a“\u8d2a\u5a6a”\u5b50\u8868\u8fbe\u5f0f\uff09\u3002\u8be5\u5b50\u8868\u8fbe\u5f0f\u4ec5\u5b8c\u5168\u5339\u914d\u4e00\u6b21\uff0c\u7136\u540e\u5c31\u4e0d\u4f1a\u9010\u6bb5\u53c2\u4e0e\u56de\u6eaf\u4e86\u3002\uff08\u4e5f\u5c31\u662f\u8bf4\uff0c\u8be5\u5b50\u8868\u8fbe\u5f0f\u4ec5\u4e0e\u53ef\u7531\u8be5\u5b50\u8868\u8fbe\u5f0f\u5355\u72ec\u5339\u914d\u7684\u5b57\u7b26\u4e32\u5339\u914d\u3002\uff09
\u547d \u540d\u6355\u83b7\u6839\u636e\u5de6\u62ec\u53f7\u7684\u4ece\u5de6\u5230\u53f3\u7684\u987a\u5e8f\u6309\u987a\u5e8f\u7f16\u53f7\uff08\u4e0e\u975e\u547d\u540d\u6355\u83b7\u7c7b\u4f3c\uff09\uff0c\u4f46\u5728\u5bf9\u6240\u6709\u975e\u547d\u540d\u6355\u83b7\u8fdb\u884c\u8ba1\u6570\u4e4b\u540e\u624d\u5f00\u59cb\u5bf9\u547d\u540d\u6355\u83b7\u8fdb\u884c\u7f16\u53f7\u3002\u4f8b\u5982\uff0c\u6a21\u5f0f ((?<One>abc)\/d+)?(?<Two>xyz)(.*) \u6309\u7f16\u53f7\u548c\u540d\u79f0\u4ea7\u751f\u4e0b\u5217\u6355\u83b7\u7ec4\u3002\uff08\u7f16\u53f7\u4e3a 0 \u7684\u7b2c\u4e00\u4e2a\u6355\u83b7\u603b\u662f\u6307\u6574\u4e2a\u6a21\u5f0f\uff09\u3002
\u7f16\u53f7 \u540d\u79f0 \u6a21\u5f0f
0 0\uff08\u9ed8\u8ba4\u540d\u79f0\uff09 ((?<One>abc)\/d+)?(?<Two>xyz)(.*)
1 1\uff08\u9ed8\u8ba4\u540d\u79f0\uff09 ((?<One>abc)\/d+)
2 2\uff08\u9ed8\u8ba4\u540d\u79f0\uff09 (.*)
3 1 (?<One>abc)
4 2 (?<Two>xyz)<\/div>\n

 <\/div>\n
4.\u6b63\u5219\u8868\u8fbe\u5f0f\uff0d\u66ff\u6362\u548c\u5206\u7ec4<\/strong>\n<\/div>\n
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\u7ee7\u7eed\u9605\u8bfb →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[273],"tags":[37],"class_list":["post-124","post","type-post","status-publish","format-standard","hentry","category-article","tag-37"],"_links":{"self":[{"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/posts\/124","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/comments?post=124"}],"version-history":[{"count":0,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/posts\/124\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/media?parent=124"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/categories?post=124"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xiaobo.li\/notes\/wp-json\/wp\/v2\/tags?post=124"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}