{"id":2161,"date":"2025-03-24T08:48:08","date_gmt":"2025-03-23T23:48:08","guid":{"rendered":"https:\/\/dexall.co.jp\/articles\/?p=2161"},"modified":"2025-03-24T08:48:33","modified_gmt":"2025-03-23T23:48:33","slug":"%e3%80%90%e5%ae%8c%e5%85%a8%e3%82%ac%e3%82%a4%e3%83%89%e3%80%91stdregex%e3%81%ab%e3%82%88%e3%82%8b%e5%8a%b9%e7%8e%87%e7%9a%84%e3%81%aa%e6%96%87%e5%ad%97%e5%88%97%e5%87%a6%e7%90%86-%e5%ae%9f","status":"publish","type":"post","link":"https:\/\/dexall.co.jp\/articles\/?p=2161","title":{"rendered":"\u3010\u5b8c\u5168\u30ac\u30a4\u30c9\u3011std::regex\u306b\u3088\u308b\u52b9\u7387\u7684\u306a\u6587\u5b57\u5217\u51e6\u7406 &#8211; \u5b9f\u8df5\u7684\u306a\u5b9f\u88c5\u4f8b\u3068\u6ce8\u610f\u70b9"},"content":{"rendered":"\n<div class=\"toc\"><br \/>\n<b>Warning<\/b>:  Undefined array key \"is_admin\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>116<\/b><br \/>\n<br \/>\n<b>Warning<\/b>:  Undefined array key \"is_category_top\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>121<\/b><br \/>\n<br \/>\n<b>Warning<\/b>:  Undefined array key \"is_top\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>128<\/b><br \/>\n    <div id=\"toc_container\" class=\"sgb-toc--bullets js-smooth-scroll\" data-dialog-title=\"\u76ee\u6b21\">\n      <p class=\"toc_title\">\u76ee\u6b21 <\/p>\n      <ul class=\"toc_list\">  <li class=\"first\">    <a href=\"#i-0\">std::regex \u306e\u57fa\u790e\u77e5\u8b58<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-1\">\u6b63\u898f\u8868\u73fe\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u9032\u5316\u3068\u7279\u5fb4<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-4\">std::regex \u304c\u9078\u3070\u308c\u308b\u7406\u7531<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-9\">std::regex\u306e\u5b9f\u8df5\u7684\u306a\u4f7f\u3044\u65b9<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-10\">\u57fa\u672c\u7684\u306a\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u30f3\u30b0\u306e\u5b9f\u88c5\u65b9\u6cd5<\/a>      <\/li>      <li>        <a href=\"#i-11\">\u6587\u5b57\u5217\u7f6e\u63db\u6a5f\u80fd\u306e\u6d3b\u7528\u30c6\u30af\u30cb\u30c3\u30af<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-12\">\u30de\u30eb\u30c1\u30d0\u30a4\u30c8\u6587\u5b57\u3067\u306e\u5229\u7528\u65b9\u6cd5<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-13\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316\u306e\u30dd\u30a4\u30f3\u30c8<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-14\">\u30b3\u30f3\u30d1\u30a4\u30eb\u6e08\u307f\u6b63\u898f\u8868\u73fe\u306e\u6d3b\u7528<\/a>      <\/li>      <li>        <a href=\"#i-15\">\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u306e\u6700\u9069\u5316\u30c6\u30af\u30cb\u30c3\u30af<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-16\">\u51e6\u7406\u901f\u5ea6\u3092\u5411\u4e0a\u3055\u305b\u308b\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-17\">\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\u3068\u30c7\u30d0\u30c3\u30b0<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-18\">\u4e00\u822c\u7684\u306a\u30a8\u30e9\u30fc\u30d1\u30bf\u30fc\u30f3\u3068\u5bfe\u51e6\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-19\">\u30c7\u30d0\u30c3\u30b0\u6642\u306e\u52b9\u7387\u7684\u306a\u30a2\u30d7\u30ed\u30fc\u30c1<\/a>      <\/li>    <\/ul>  <\/li>  <li class=\"last\">    <a href=\"#i-20\">\u5b9f\u8df5\u7684\u306a\u7528\u9014\u30b1\u30fc\u30b9\u96c6<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-21\">\u30ed\u30b0\u89e3\u6790\u3067\u306e\u6d3b\u7528\u4f8b<\/a>      <\/li>      <li>        <a href=\"#i-22\">\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u306e\u30d1\u30fc\u30b9\u51e6\u7406<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-23\">\u5165\u529b\u30c7\u30fc\u30bf\u306e\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u5b9f\u88c5<\/a>      <\/li>    <\/ul>  <\/li><\/ul>\n      <a href=\"#\" class=\"sgb-toc-button js-toc-button\" rel=\"nofollow\" data-open-dialog=\"true\"><i class=\"fa fa-list\"><\/i><span class=\"sgb-toc-button__text\">\u76ee\u6b21\u3078<\/span><\/a>\n    <\/div><\/div><h2 class=\"wp-block-heading\" id=\"i-0\">std::regex \u306e\u57fa\u790e\u77e5\u8b58<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-1\">\u6b63\u898f\u8868\u73fe\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u9032\u5316\u3068\u7279\u5fb4<\/h3>\n\n\n\n<p>C++11\u3067\u5c0e\u5165\u3055\u308c\u305f<code>std::regex<\/code>\u306f\u3001\u73fe\u4ee3\u306eC++\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306b\u304a\u3051\u308b\u6587\u5b57\u5217\u51e6\u7406\u306e\u91cd\u8981\u306a\u8981\u7d20\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u9032\u5316\u3068\u7279\u5fb4\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-2\">\u6b74\u53f2\u7684\u80cc\u666f<\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5c0e\u5165\u4ee5\u524d\u306e\u72b6\u6cc1<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>C++11\u4ee5\u524d\u306f\u3001\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea\u306b\u6b63\u898f\u8868\u73fe\u6a5f\u80fd\u304c\u5b58\u5728\u3057\u307e\u305b\u3093\u3067\u3057\u305f<\/li>\n\n\n\n<li>\u958b\u767a\u8005\u306fBoost\u3084PCRE\u306a\u3069\u306e\u30b5\u30fc\u30c9\u30d1\u30fc\u30c6\u30a3\u30e9\u30a4\u30d6\u30e9\u30ea\u306b\u4f9d\u5b58\u3057\u3066\u3044\u307e\u3057\u305f<\/li>\n\n\n\n<li>\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u9593\u306e\u4e92\u63db\u6027\u306b\u8ab2\u984c\u304c\u3042\u308a\u307e\u3057\u305f<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>C++11\u3067\u306e\u5c0e\u5165<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u4e00\u90e8\u3068\u3057\u3066\u6b63\u898f\u8868\u73fe\u6a5f\u80fd\u304c\u7d71\u5408\u3055\u308c\u307e\u3057\u305f<\/li>\n\n\n\n<li>ECMAScript\u6587\u6cd5\u3092\u30d9\u30fc\u30b9\u3068\u3057\u305f\u4f7f\u3044\u3084\u3059\u3044\u8a2d\u8a08\u304c\u63a1\u7528\u3055\u308c\u307e\u3057\u305f<\/li>\n\n\n\n<li>\u30af\u30ed\u30b9\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3067\u306e\u4e00\u8cab\u3057\u305f\u52d5\u4f5c\u304c\u4fdd\u8a3c\u3055\u308c\u307e\u3057\u305f<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-3\">\u4e3b\u8981\u306a\u7279\u5fb4<\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u8c4a\u5bcc\u306a\u6b63\u898f\u8868\u73fe\u6587\u6cd5\u306e\u30b5\u30dd\u30fc\u30c8<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   \/\/ \u8907\u6570\u306e\u6b63\u898f\u8868\u73fe\u6587\u6cd5\u3092\u30b5\u30dd\u30fc\u30c8\n   std::regex pattern(\"pattern\", std::regex_constants::ECMAScript);\n   std::regex pattern_basic(\"pattern\", std::regex_constants::basic);\n   std::regex pattern_extended(\"pattern\", std::regex_constants::extended);<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u5f37\u529b\u306a\u30de\u30c3\u30c1\u30f3\u30b0\u6a5f\u80fd<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   \/\/ \u5b8c\u5168\u30de\u30c3\u30c1\u30f3\u30b0\u3001\u90e8\u5206\u30de\u30c3\u30c1\u30f3\u30b0\u3001\u7f6e\u63db\u306a\u3069\u69d8\u3005\u306a\u64cd\u4f5c\u304c\u53ef\u80fd\n   std::string text = \"Hello, World!\";\n   std::regex pattern(\"World\");\n   bool found = std::regex_search(text, pattern);  \/\/ \u90e8\u5206\u30de\u30c3\u30c1\u30f3\u30b0<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>Unicode\u5bfe\u5fdc<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30ef\u30a4\u30c9\u6587\u5b57\u5217\uff08wstring\uff09\u306e\u30b5\u30dd\u30fc\u30c8<\/li>\n\n\n\n<li>\u30de\u30eb\u30c1\u30d0\u30a4\u30c8\u6587\u5b57\u306e\u9069\u5207\u306a\u51e6\u7406<\/li>\n\n\n\n<li>\u56fd\u969b\u5316\u5bfe\u5fdc\u306e\u5bb9\u6613\u3055<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-4\">std::regex \u304c\u9078\u3070\u308c\u308b\u7406\u7531<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-5\">1. \u6a19\u6e96\u5316\u3055\u308c\u305f\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9<\/h4>\n\n\n\n<p><code>std::regex<\/code>\u306f\u3001C++\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u4e00\u90e8\u3068\u3057\u3066\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u5229\u70b9\u3092\u63d0\u4f9b\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u79fb\u690d\u6027\u306e\u9ad8\u3055<\/strong><\/li>\n<\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">  \/\/ \u3069\u306e\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3067\u3082\u540c\u3058\u30b3\u30fc\u30c9\u304c\u52d5\u4f5c\n  std::regex date_pattern(\"\\\\d{4}-\\\\d{2}-\\\\d{2}\");\n  std::string date = \"2024-01-15\";\n  if (std::regex_match(date, date_pattern)) {\n      \/\/ \u65e5\u4ed8\u306e\u691c\u8a3c\u304c\u53ef\u80fd\n  }<\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u4e00\u8cab\u3057\u305f\u52d5\u4f5c\u306e\u4fdd\u8a3c<\/strong><\/li>\n\n\n\n<li>\u6a19\u6e96\u898f\u683c\u306b\u6e96\u62e0\u3057\u305f\u5b9f\u88c5<\/li>\n\n\n\n<li>\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u9593\u3067\u306e\u52d5\u4f5c\u306e\u4e00\u8cab\u6027<\/li>\n\n\n\n<li>\u30b3\u30f3\u30d1\u30a4\u30e9\u306e\u6700\u9069\u5316\u30b5\u30dd\u30fc\u30c8<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-6\">2. \u4f7f\u3044\u3084\u3059\u3044API\u8a2d\u8a08<\/h4>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30b7\u30f3\u30d7\u30eb\u306a\u6587\u5b57\u5217\u30de\u30c3\u30c1\u30f3\u30b0\nstd::string text = \"\u9023\u7d61\u5148: contact@example.com\";\nstd::regex email_pattern(\"[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\\\\.[a-zA-Z]{2,}\");\nstd::smatch matches;\nif (std::regex_search(text, matches, email_pattern)) {\n    std::cout &lt;&lt; \"Found email: \" &lt;&lt; matches[0] &lt;&lt; std::endl;\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-7\">3. \u8c4a\u5bcc\u306a\u6a5f\u80fd\u30bb\u30c3\u30c8<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u30a4\u30c6\u30ec\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u64cd\u4f5c<\/strong><\/li>\n<\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">  \/\/ \u6587\u5b57\u5217\u5185\u306e\u5168\u30de\u30c3\u30c1\u3092\u691c\u7d22\n  std::string text = \"ID: 123, ID: 456, ID: 789\";\n  std::regex id_pattern(\"ID: (\\\\d+)\");\n  auto words_begin = std::sregex_iterator(text.begin(), text.end(), id_pattern);\n  auto words_end = std::sregex_iterator();<\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u67d4\u8edf\u306a\u30de\u30c3\u30c1\u30f3\u30b0\u5236\u5fa1<\/strong><\/li>\n<\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">  \/\/ \u30d5\u30e9\u30b0\u306b\u3088\u308b\u52d5\u4f5c\u306e\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\n  std::regex pattern(\"pattern\", \n      std::regex_constants::ECMAScript | \n      std::regex_constants::icase);  \/\/ \u5927\u6587\u5b57\u5c0f\u6587\u5b57\u3092\u533a\u5225\u3057\u306a\u3044<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-8\">4. \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u4fe1\u983c\u6027<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306e\u30d1\u30bf\u30fc\u30f3\u691c\u8a3c<\/li>\n\n\n\n<li>\u6700\u9069\u5316\u3055\u308c\u305f\u5b9f\u884c\u6642\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9<\/li>\n\n\n\n<li>\u30e1\u30e2\u30ea\u5b89\u5168\u306a\u64cd\u4f5c\u306e\u4fdd\u8a3c<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u7279\u5fb4\u306b\u3088\u308a\u3001<code>std::regex<\/code>\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u5834\u9762\u3067\u7279\u306b\u6709\u52b9\u3067\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5165\u529b\u30c7\u30fc\u30bf\u306e\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3<\/li>\n\n\n\n<li>\u30c6\u30ad\u30b9\u30c8\u30d5\u30a1\u30a4\u30eb\u306e\u89e3\u6790<\/li>\n\n\n\n<li>\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u306e\u51e6\u7406<\/li>\n\n\n\n<li>\u30ed\u30b0\u30d5\u30a1\u30a4\u30eb\u306e\u5206\u6790<\/li>\n\n\n\n<li>\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u5909\u63db\u51e6\u7406<\/li>\n<\/ul>\n\n\n\n<p>\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u4e00\u90e8\u3068\u3057\u3066\u63d0\u4f9b\u3055\u308c\u308b\u4fe1\u983c\u6027\u3068\u3001\u5341\u5206\u306a\u6a5f\u80fd\u30bb\u30c3\u30c8\u306b\u3088\u308a\u3001\u591a\u304f\u306e\u958b\u767a\u8005\u304c<code>std::regex<\/code>\u3092\u9078\u629e\u3057\u3066\u3044\u307e\u3059\u3002\u7279\u306b\u3001\u30af\u30ed\u30b9\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u958b\u767a\u3084\u9577\u671f\u7684\u306a\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u3092\u8003\u616e\u3059\u308b\u5834\u5408\u3001\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u4f7f\u7528\u306f\u8ce2\u660e\u306a\u9078\u629e\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-9\">std::regex\u306e\u5b9f\u8df5\u7684\u306a\u4f7f\u3044\u65b9<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-10\">\u57fa\u672c\u7684\u306a\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u30f3\u30b0\u306e\u5b9f\u88c5\u65b9\u6cd5<\/h3>\n\n\n\n<p>std::regex\u3092\u4f7f\u7528\u3057\u305f\u57fa\u672c\u7684\u306a\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u30f3\u30b0\u306b\u306f\u3001\u4e3b\u306b\u4ee5\u4e0b\u306e3\u3064\u306e\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>std::regex_match<\/strong>: \u6587\u5b57\u5217\u5168\u4f53\u304c\u6b63\u898f\u8868\u73fe\u30d1\u30bf\u30fc\u30f3\u306b\u4e00\u81f4\u3059\u308b\u304b\u78ba\u8a8d<\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">bool validateEmail(const std::string&amp; email) {\n    \/\/ \u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306e\u57fa\u672c\u7684\u306a\u691c\u8a3c\u30d1\u30bf\u30fc\u30f3\n    std::regex pattern(\n        \"^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\\\\.[a-zA-Z]{2,}$\",\n        std::regex_constants::ECMAScript\n    );\n\n    \/\/ \u6587\u5b57\u5217\u5168\u4f53\u304c\u30d1\u30bf\u30fc\u30f3\u306b\u4e00\u81f4\u3059\u308b\u304b\u78ba\u8a8d\n    return std::regex_match(email, pattern);\n}<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>std::regex_search<\/strong>: \u30d1\u30bf\u30fc\u30f3\u306b\u4e00\u81f4\u3059\u308b\u90e8\u5206\u3092\u691c\u7d22<\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">void findPhoneNumbers(const std::string&amp; text) {\n    \/\/ \u96fb\u8a71\u756a\u53f7\u30d1\u30bf\u30fc\u30f3\uff08\u4f8b: 000-0000-0000\uff09\n    std::regex pattern(\"\\\\d{3}-\\\\d{4}-\\\\d{4}\");\n    std::smatch matches;\n    std::string::const_iterator searchStart(text.cbegin());\n\n    \/\/ \u3059\u3079\u3066\u306e\u4e00\u81f4\u3092\u691c\u7d22\n    while (std::regex_search(searchStart, text.cend(), matches, pattern)) {\n        std::cout &lt;&lt; \"Found: \" &lt;&lt; matches[0] &lt;&lt; std::endl;\n        searchStart = matches.suffix().first;\n    }\n}<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>std::regex_iterator<\/strong>: \u4e00\u81f4\u3059\u308b\u3059\u3079\u3066\u306e\u7b87\u6240\u3092\u53cd\u5fa9\u51e6\u7406<\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">void findAllMatches(const std::string&amp; text, const std::regex&amp; pattern) {\n    \/\/ \u30a4\u30c6\u30ec\u30fc\u30bf\u3092\u4f7f\u7528\u3057\u3066\u5168\u4e00\u81f4\u3092\u51e6\u7406\n    auto words_begin = std::sregex_iterator(\n        text.begin(), text.end(), pattern\n    );\n    auto words_end = std::sregex_iterator();\n\n    for (std::sregex_iterator i = words_begin; i != words_end; ++i) {\n        std::smatch match = *i;\n        std::cout &lt;&lt; match.str() &lt;&lt; std::endl;\n    }\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-11\">\u6587\u5b57\u5217\u7f6e\u63db\u6a5f\u80fd\u306e\u6d3b\u7528\u30c6\u30af\u30cb\u30c3\u30af<\/h3>\n\n\n\n<p>std::regex\u306b\u3088\u308b\u6587\u5b57\u5217\u7f6e\u63db\u306f\u3001<code>std::regex_replace<\/code>\u3092\u4f7f\u7528\u3057\u3066\u5b9f\u88c5\u3067\u304d\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u57fa\u672c\u7684\u306a\u7f6e\u63db<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">std::string formatDates(const std::string&amp; text) {\n    \/\/ YYYY\/MM\/DD\u5f62\u5f0f\u3092YYYY-MM-DD\u5f62\u5f0f\u306b\u5909\u63db\n    std::regex date_pattern(\"(\\\\d{4})\/(\\\\d{2})\/(\\\\d{2})\");\n    return std::regex_replace(\n        text,\n        date_pattern,\n        \"$1-$2-$3\"  \/\/ \u30ad\u30e3\u30d7\u30c1\u30e3\u30b0\u30eb\u30fc\u30d7\u3092\u4f7f\u7528\n    );\n}<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u6761\u4ef6\u4ed8\u304d\u7f6e\u63db<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">std::string maskSensitiveData(const std::string&amp; text) {\n    \/\/ \u30af\u30ec\u30b8\u30c3\u30c8\u30ab\u30fc\u30c9\u756a\u53f7\u3092\u30de\u30b9\u30af\n    std::regex card_pattern(\"(\\\\d{4})-?(\\\\d{4})-?(\\\\d{4})-?(\\\\d{4})\");\n    return std::regex_replace(\n        text,\n        card_pattern,\n        \"$1-XXXX-XXXX-$4\"\n    );\n}<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u9ad8\u5ea6\u306a\u7f6e\u63db\u51e6\u7406<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">std::string formatText(const std::string&amp; text) {\n    \/\/ \u8907\u6570\u306e\u7f6e\u63db\u30eb\u30fc\u30eb\u3092\u9069\u7528\n    std::regex patterns[] = {\n        std::regex(\"\\\\s+\"),                    \/\/ \u9023\u7d9a\u3059\u308b\u7a7a\u767d\n        std::regex(\"^\\\\s+|\\\\s+$\"),            \/\/ \u5148\u982d\u30fb\u672b\u5c3e\u306e\u7a7a\u767d\n        std::regex(\"([.!?])([^\\\\s])\")         \/\/ \u53e5\u8aad\u70b9\u5f8c\u306e\u30b9\u30da\u30fc\u30b9\n    };\n\n    std::string result = text;\n    \/\/ \u5358\u4e00\u306e\u7a7a\u767d\u306b\u7f6e\u63db\n    result = std::regex_replace(result, patterns[0], \" \");\n    \/\/ \u5148\u982d\u30fb\u672b\u5c3e\u306e\u7a7a\u767d\u3092\u524a\u9664\n    result = std::regex_replace(result, patterns[1], \"\");\n    \/\/ \u53e5\u8aad\u70b9\u5f8c\u306b\u30b9\u30da\u30fc\u30b9\u3092\u8ffd\u52a0\n    result = std::regex_replace(result, patterns[2], \"$1 $2\");\n\n    return result;\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-12\">\u30de\u30eb\u30c1\u30d0\u30a4\u30c8\u6587\u5b57\u3067\u306e\u5229\u7528\u65b9\u6cd5<\/h3>\n\n\n\n<p>\u30de\u30eb\u30c1\u30d0\u30a4\u30c8\u6587\u5b57\uff08\u65e5\u672c\u8a9e\u306a\u3069\uff09\u3092\u6271\u3046\u5834\u5408\u306f\u3001\u4ee5\u4e0b\u306e\u70b9\u306b\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u6587\u5b57\u30a8\u30f3\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u306e\u8003\u616e<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;codecvt&gt;\n#include &lt;locale&gt;\n\nstd::wstring convertToWideString(const std::string&amp; str) {\n    \/\/ UTF-8\u304b\u3089\u30ef\u30a4\u30c9\u6587\u5b57\u5217\u3078\u306e\u5909\u63db\n    std::wstring_convert&lt;std::codecvt_utf8&lt;wchar_t&gt;&gt; converter;\n    return converter.from_bytes(str);\n}\n\nvoid processJapaneseText(const std::string&amp; text) {\n    \/\/ \u30ef\u30a4\u30c9\u6587\u5b57\u5217\u306b\u5909\u63db\n    std::wstring wide_text = convertToWideString(text);\n\n    \/\/ \u65e5\u672c\u8a9e\u3092\u542b\u3080\u30d1\u30bf\u30fc\u30f3\n    std::wregex pattern(L\"[\u4e00-\u9faf]\");\n\n    \/\/ \u30de\u30c3\u30c1\u30f3\u30b0\u51e6\u7406\n    std::wsmatch matches;\n    if (std::regex_search(wide_text, matches, pattern)) {\n        std::wcout &lt;&lt; L\"\u6f22\u5b57\u304c\u898b\u3064\u304b\u308a\u307e\u3057\u305f: \" &lt;&lt; matches[0] &lt;&lt; std::endl;\n    }\n}<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>Unicode\u5bfe\u5fdc\u30d1\u30bf\u30fc\u30f3\u306e\u4f7f\u7528<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">void validateJapaneseAddress(const std::string&amp; address) {\n    \/\/ \u65e5\u672c\u306e\u4f4f\u6240\u30d1\u30bf\u30fc\u30f3\n    std::wregex pattern(\n        L\"\u3012?\\\\d{3}-?\\\\d{4}\\\\s*[\u90fd\u9053\u5e9c\u770c]\"\n    );\n\n    std::wstring wide_address = convertToWideString(address);\n    if (std::regex_search(wide_address, pattern)) {\n        std::cout &lt;&lt; \"Valid Japanese address format\" &lt;&lt; std::endl;\n    }\n}<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class JapaneseTextProcessor {\nprivate:\n    std::wregex pattern_;\n    std::wstring_convert&lt;std::codecvt_utf8&lt;wchar_t&gt;&gt; converter_;\n\npublic:\n    JapaneseTextProcessor() : \n        pattern_(L\"[\u3041-\u3093\u30a1-\u30f3\u4e00-\u9faf]\") {\n        \/\/ \u30d1\u30bf\u30fc\u30f3\u3092\u4e8b\u524d\u306b\u30b3\u30f3\u30d1\u30a4\u30eb\n    }\n\n    bool containsJapanese(const std::string&amp; text) {\n        try {\n            std::wstring wide_text = converter_.from_bytes(text);\n            return std::regex_search(wide_text, pattern_);\n        } catch (const std::exception&amp; e) {\n            std::cerr &lt;&lt; \"Error processing text: \" &lt;&lt; e.what() &lt;&lt; std::endl;\n            return false;\n        }\n    }\n};<\/pre>\n\n\n\n<p>\u5b9f\u88c5\u6642\u306e\u6ce8\u610f\u70b9\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30a8\u30f3\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u95a2\u9023<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>UTF-8\u30a8\u30f3\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u306e\u4f7f\u7528\u3092\u63a8\u5968<\/li>\n\n\n\n<li>\u6587\u5b57\u30b3\u30fc\u30c9\u5909\u63db\u6642\u306e\u30a8\u30e9\u30fc\u51e6\u7406\u304c\u91cd\u8981<\/li>\n\n\n\n<li>\u30ed\u30b1\u30fc\u30eb\u8a2d\u5b9a\u306e\u8003\u616e<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u8003\u616e<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30d1\u30bf\u30fc\u30f3\u306e\u4e8b\u524d\u30b3\u30f3\u30d1\u30a4\u30eb<\/li>\n\n\n\n<li>\u4e0d\u8981\u306a\u5909\u63db\u306e\u56de\u907f<\/li>\n\n\n\n<li>\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u306e\u6700\u9069\u5316<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6587\u5b57\u30b3\u30fc\u30c9\u5909\u63db\u30a8\u30e9\u30fc\u306e\u51e6\u7406<\/li>\n\n\n\n<li>\u7121\u52b9\u306a\u30d1\u30bf\u30fc\u30f3\u3078\u306e\u5bfe\u5fdc<\/li>\n\n\n\n<li>\u30e1\u30e2\u30ea\u4e0d\u8db3\u3078\u306e\u5bfe\u51e6<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u5b9f\u88c5\u4f8b\u3068\u6ce8\u610f\u70b9\u3092\u8e0f\u307e\u3048\u308b\u3053\u3068\u3067\u3001\u52b9\u7387\u7684\u3067\u5805\u7262\u306a\u6b63\u898f\u8868\u73fe\u51e6\u7406\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-13\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316\u306e\u30dd\u30a4\u30f3\u30c8<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-14\">\u30b3\u30f3\u30d1\u30a4\u30eb\u6e08\u307f\u6b63\u898f\u8868\u73fe\u306e\u6d3b\u7528<\/h3>\n\n\n\n<p>\u6b63\u898f\u8868\u73fe\u306e\u30b3\u30f3\u30d1\u30a4\u30eb\u306f\u6bd4\u8f03\u7684\u30b3\u30b9\u30c8\u306e\u9ad8\u3044\u64cd\u4f5c\u3067\u3059\u3002\u4ee5\u4e0b\u306e\u30c6\u30af\u30cb\u30c3\u30af\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5927\u5e45\u306b\u6539\u5584\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30d1\u30bf\u30fc\u30f3\u306e\u518d\u5229\u7528<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u60aa\u3044\u4f8b\uff1a\u30eb\u30fc\u30d7\u5185\u3067\u30d1\u30bf\u30fc\u30f3\u3092\u6bce\u56de\u4f5c\u6210\nvoid badExample(const std::vector&lt;std::string&gt;&amp; inputs) {\n    for (const auto&amp; input : inputs) {\n        std::regex pattern(\"\\\\d{4}-\\\\d{2}-\\\\d{2}\"); \/\/ \u6bce\u56de\u30b3\u30f3\u30d1\u30a4\u30eb\n        if (std::regex_match(input, pattern)) {\n            \/\/ \u51e6\u7406\n        }\n    }\n}\n\n\/\/ \u826f\u3044\u4f8b\uff1a\u30d1\u30bf\u30fc\u30f3\u3092\u4e8b\u524d\u306b\u30b3\u30f3\u30d1\u30a4\u30eb\nvoid goodExample(const std::vector&lt;std::string&gt;&amp; inputs) {\n    static const std::regex pattern(\"\\\\d{4}-\\\\d{2}-\\\\d{2}\"); \/\/ \u4e00\u5ea6\u3060\u3051\u30b3\u30f3\u30d1\u30a4\u30eb\n    for (const auto&amp; input : inputs) {\n        if (std::regex_match(input, pattern)) {\n            \/\/ \u51e6\u7406\n        }\n    }\n}<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u6700\u9069\u5316\u30d5\u30e9\u30b0\u306e\u6d3b\u7528<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class PatternMatcher {\nprivate:\n    std::regex pattern_;\n\npublic:\n    PatternMatcher() : pattern_(\"\\\\w+@\\\\w+\\\\.\\\\w+\",\n        std::regex_constants::optimize |  \/\/ \u5b9f\u884c\u901f\u5ea6\u3092\u512a\u5148\n        std::regex_constants::ECMAScript) {\n    }\n\n    bool isMatch(const std::string&amp; text) {\n        return std::regex_match(text, pattern_);\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-15\">\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u306e\u6700\u9069\u5316\u30c6\u30af\u30cb\u30c3\u30af<\/h3>\n\n\n\n<p>\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u3092\u6700\u9069\u5316\u3059\u308b\u305f\u3081\u306b\u3001\u4ee5\u4e0b\u306e\u6226\u7565\u3092\u63a1\u7528\u3067\u304d\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30a4\u30c6\u30ec\u30fc\u30bf\u306e\u52b9\u7387\u7684\u306a\u4f7f\u7528<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class TextAnalyzer {\nprivate:\n    std::regex pattern_;\n\npublic:\n    TextAnalyzer(const std::string&amp; pattern) : pattern_(pattern) {}\n\n    \/\/ \u30e1\u30e2\u30ea\u52b9\u7387\u306e\u826f\u3044\u5b9f\u88c5\n    void analyzeStream(std::istream&amp; input) {\n        std::string line;\n        while (std::getline(input, line)) {\n            auto words_begin = std::sregex_iterator(\n                line.begin(), line.end(), pattern_);\n            auto words_end = std::sregex_iterator();\n\n            for (auto it = words_begin; it != words_end; ++it) {\n                \/\/ \u4e00\u81f4\u30921\u3064\u305a\u3064\u51e6\u7406\n                processMatch(*it);\n            }\n            \/\/ \u5404\u884c\u3092\u51e6\u7406\u5f8c\u306b\u30e1\u30e2\u30ea\u3092\u89e3\u653e\n            line.clear();\n            line.shrink_to_fit();\n        }\n    }\n\nprivate:\n    void processMatch(const std::smatch&amp; match) {\n        \/\/ \u30de\u30c3\u30c1\u51e6\u7406\n    }\n};<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30e1\u30e2\u30ea\u30d7\u30fc\u30eb\u4f7f\u7528\u306e\u691c\u8a0e<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;memory_resource&gt;\n\nclass RegexProcessor {\nprivate:\n    std::pmr::monotonic_buffer_resource resource_{4096}; \/\/ 4KB\u306e\u30d0\u30c3\u30d5\u30a1\n    std::pmr::string_view text_;\n    std::regex pattern_;\n\npublic:\n    RegexProcessor(std::string_view text, const std::regex&amp; pattern)\n        : text_(text), pattern_(pattern) {}\n\n    void process() {\n        std::pmr::vector&lt;std::pmr::string&gt; matches(&amp;resource_);\n        \/\/ \u30de\u30c3\u30c1\u30f3\u30b0\u51e6\u7406\n        \/\/ \u30ea\u30bd\u30fc\u30b9\u306f\u81ea\u52d5\u7684\u306b\u89e3\u653e\u3055\u308c\u308b\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-16\">\u51e6\u7406\u901f\u5ea6\u3092\u5411\u4e0a\u3055\u305b\u308b\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30d1\u30bf\u30fc\u30f3\u306e\u6700\u9069\u5316<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class OptimizedMatcher {\npublic:\n    \/\/ \u975e\u52b9\u7387\u306a\u30d1\u30bf\u30fc\u30f3\n    static const std::regex slow_pattern;\n    \/\/ \u6700\u9069\u5316\u3055\u308c\u305f\u30d1\u30bf\u30fc\u30f3\n    static const std::regex fast_pattern;\n\n    static bool matchEmail(const std::string&amp; email) {\n        \/\/ \u6700\u9069\u5316\u3055\u308c\u305f\u30d1\u30bf\u30fc\u30f3\u3092\u4f7f\u7528\n        return std::regex_match(email, fast_pattern);\n    }\n};\n\n\/\/ \u975e\u52b9\u7387\u306a\u30d1\u30bf\u30fc\u30f3\uff08\u30d0\u30c3\u30af\u30c8\u30e9\u30c3\u30ad\u30f3\u30b0\u304c\u591a\u767a\uff09\nconst std::regex OptimizedMatcher::slow_pattern(\n    \"([a-zA-Z0-9]+.*)+@[a-zA-Z0-9.-]+\\\\.[a-zA-Z]{2,}\"\n);\n\n\/\/ \u6700\u9069\u5316\u3055\u308c\u305f\u30d1\u30bf\u30fc\u30f3\uff08\u30d0\u30c3\u30af\u30c8\u30e9\u30c3\u30ad\u30f3\u30b0\u3092\u6700\u5c0f\u5316\uff09\nconst std::regex OptimizedMatcher::fast_pattern(\n    \"[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\\\\.[a-zA-Z]{2,}\"\n);<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u4e26\u5217\u51e6\u7406\u306e\u6d3b\u7528<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;execution&gt;\n#include &lt;algorithm&gt;\n\nclass ParallelRegexProcessor {\nprivate:\n    std::regex pattern_;\n    std::vector&lt;std::string&gt; inputs_;\n\npublic:\n    ParallelRegexProcessor(const std::string&amp; pattern,\n                          const std::vector&lt;std::string&gt;&amp; inputs)\n        : pattern_(pattern), inputs_(inputs) {}\n\n    std::vector&lt;bool&gt; processInParallel() {\n        std::vector&lt;bool&gt; results(inputs_.size());\n\n        \/\/ \u4e26\u5217\u51e6\u7406\u306e\u5b9f\u884c\n        std::transform(\n            std::execution::par,  \/\/ \u4e26\u5217\u5b9f\u884c\u30dd\u30ea\u30b7\u30fc\n            inputs_.begin(), inputs_.end(),\n            results.begin(),\n            [this](const std::string&amp; input) {\n                return std::regex_match(input, this-&gt;pattern_);\n            }\n        );\n\n        return results;\n    }\n};<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u6d3b\u7528<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class RegexCache {\nprivate:\n    struct CacheEntry {\n        std::string pattern;\n        std::regex compiled_pattern;\n        std::chrono::system_clock::time_point last_used;\n\n        CacheEntry(const std::string&amp; p)\n            : pattern(p), compiled_pattern(p),\n              last_used(std::chrono::system_clock::now()) {}\n    };\n\n    std::unordered_map&lt;std::string, CacheEntry&gt; cache_;\n    static const size_t MAX_CACHE_SIZE = 100;\n\npublic:\n    const std::regex&amp; getPattern(const std::string&amp; pattern) {\n        auto it = cache_.find(pattern);\n        if (it != cache_.end()) {\n            it-&gt;second.last_used = std::chrono::system_clock::now();\n            return it-&gt;second.compiled_pattern;\n        }\n\n        if (cache_.size() &gt;= MAX_CACHE_SIZE) {\n            removeOldestEntry();\n        }\n\n        auto [inserted_it, success] = cache_.emplace(\n            pattern, CacheEntry(pattern));\n        return inserted_it-&gt;second.compiled_pattern;\n    }\n\nprivate:\n    void removeOldestEntry() {\n        auto oldest = std::min_element(\n            cache_.begin(), cache_.end(),\n            [](const auto&amp; a, const auto&amp; b) {\n                return a.second.last_used &lt; b.second.last_used;\n            }\n        );\n        if (oldest != cache_.end()) {\n            cache_.erase(oldest);\n        }\n    }\n};<\/pre>\n\n\n\n<p>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316\u306e\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30b3\u30f3\u30d1\u30a4\u30eb\u6e08\u307f\u30d1\u30bf\u30fc\u30f3\u306e\u518d\u5229\u7528<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u9759\u7684\u306a\u30d1\u30bf\u30fc\u30f3\u306e\u4f7f\u7528<\/li>\n\n\n\n<li>\u30d1\u30bf\u30fc\u30f3\u306e\u30ad\u30e3\u30c3\u30b7\u30f3\u30b0<\/li>\n\n\n\n<li>\u6700\u9069\u5316\u30d5\u30e9\u30b0\u306e\u6d3b\u7528<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30e1\u30e2\u30ea\u7ba1\u7406\u306e\u6700\u9069\u5316<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u52b9\u7387\u7684\u306a\u30e1\u30e2\u30ea\u30a2\u30ed\u30b1\u30fc\u30b7\u30e7\u30f3<\/li>\n\n\n\n<li>\u30ea\u30bd\u30fc\u30b9\u306e\u9069\u5207\u306a\u89e3\u653e<\/li>\n\n\n\n<li>\u30e1\u30e2\u30ea\u30d7\u30fc\u30eb\u306e\u4f7f\u7528<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u51e6\u7406\u901f\u5ea6\u306e\u6539\u5584<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30d1\u30bf\u30fc\u30f3\u306e\u6700\u9069\u5316<\/li>\n\n\n\n<li>\u4e26\u5217\u51e6\u7406\u306e\u6d3b\u7528<\/li>\n\n\n\n<li>\u30ad\u30e3\u30c3\u30b7\u30e5\u6226\u7565\u306e\u5b9f\u88c5<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u6700\u9069\u5316\u30c6\u30af\u30cb\u30c3\u30af\u3092\u9069\u5207\u306b\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001std::regex\u3092\u4f7f\u7528\u3057\u305f\u51e6\u7406\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5927\u5e45\u306b\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-17\">\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\u3068\u30c7\u30d0\u30c3\u30b0<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-18\">\u4e00\u822c\u7684\u306a\u30a8\u30e9\u30fc\u30d1\u30bf\u30fc\u30f3\u3068\u5bfe\u51e6\u6cd5<\/h3>\n\n\n\n<p>std::regex\u3092\u4f7f\u7528\u3059\u308b\u969b\u306b\u767a\u751f\u3059\u308b\u4e3b\u8981\u306a\u30a8\u30e9\u30fc\u3068\u3001\u305d\u306e\u52b9\u679c\u7684\u306a\u5bfe\u51e6\u65b9\u6cd5\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u69cb\u6587\u30a8\u30e9\u30fc\u306e\u51e6\u7406<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class RegexValidator {\npublic:\n    static bool isValidPattern(const std::string&amp; pattern) {\n        try {\n            std::regex re(pattern);\n            return true;\n        } catch (const std::regex_error&amp; e) {\n            std::cerr &lt;&lt; \"Invalid regex pattern: \" &lt;&lt; e.what() &lt;&lt; std::endl;\n            std::cerr &lt;&lt; \"Error code: \" &lt;&lt; e.code() &lt;&lt; std::endl;\n\n            \/\/ \u30a8\u30e9\u30fc\u30b3\u30fc\u30c9\u306b\u57fa\u3065\u304f\u8a73\u7d30\u306a\u8a3a\u65ad\n            switch (e.code()) {\n                case std::regex_constants::error_collate:\n                    std::cerr &lt;&lt; \"Invalid collating element request\" &lt;&lt; std::endl;\n                    break;\n                case std::regex_constants::error_ctype:\n                    std::cerr &lt;&lt; \"Invalid character class\" &lt;&lt; std::endl;\n                    break;\n                case std::regex_constants::error_escape:\n                    std::cerr &lt;&lt; \"Invalid escape character or trailing escape\" &lt;&lt; std::endl;\n                    break;\n                case std::regex_constants::error_backref:\n                    std::cerr &lt;&lt; \"Invalid back reference\" &lt;&lt; std::endl;\n                    break;\n                case std::regex_constants::error_brack:\n                    std::cerr &lt;&lt; \"Mismatched bracket ([ or ])\" &lt;&lt; std::endl;\n                    break;\n                case std::regex_constants::error_paren:\n                    std::cerr &lt;&lt; \"Mismatched parentheses (( or ))\" &lt;&lt; std::endl;\n                    break;\n                case std::regex_constants::error_brace:\n                    std::cerr &lt;&lt; \"Mismatched brace ({ or })\" &lt;&lt; std::endl;\n                    break;\n                case std::regex_constants::error_badbrace:\n                    std::cerr &lt;&lt; \"Invalid range inside brace expression\" &lt;&lt; std::endl;\n                    break;\n                case std::regex_constants::error_range:\n                    std::cerr &lt;&lt; \"Invalid character range\" &lt;&lt; std::endl;\n                    break;\n                case std::regex_constants::error_space:\n                    std::cerr &lt;&lt; \"Insufficient memory\" &lt;&lt; std::endl;\n                    break;\n                case std::regex_constants::error_badrepeat:\n                    std::cerr &lt;&lt; \"Invalid use of repetition operators\" &lt;&lt; std::endl;\n                    break;\n                case std::regex_constants::error_complexity:\n                    std::cerr &lt;&lt; \"Pattern too complex\" &lt;&lt; std::endl;\n                    break;\n                case std::regex_constants::error_stack:\n                    std::cerr &lt;&lt; \"Stack space overflow\" &lt;&lt; std::endl;\n                    break;\n                default:\n                    std::cerr &lt;&lt; \"Unknown error\" &lt;&lt; std::endl;\n            }\n            return false;\n        }\n    }\n};<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u5b9f\u884c\u6642\u30a8\u30e9\u30fc\u306e\u51e6\u7406<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class SafeRegexMatcher {\nprivate:\n    std::regex pattern_;\n    bool is_valid_;\n\npublic:\n    SafeRegexMatcher(const std::string&amp; pattern_str) : is_valid_(false) {\n        try {\n            pattern_ = std::regex(pattern_str);\n            is_valid_ = true;\n        } catch (const std::regex_error&amp; e) {\n            std::cerr &lt;&lt; \"Failed to compile regex: \" &lt;&lt; e.what() &lt;&lt; std::endl;\n        }\n    }\n\n    std::optional&lt;bool&gt; match(const std::string&amp; text) {\n        if (!is_valid_) {\n            return std::nullopt;\n        }\n\n        try {\n            return std::regex_match(text, pattern_);\n        } catch (const std::exception&amp; e) {\n            std::cerr &lt;&lt; \"Match operation failed: \" &lt;&lt; e.what() &lt;&lt; std::endl;\n            return std::nullopt;\n        }\n    }\n};<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30e1\u30e2\u30ea\u95a2\u9023\u30a8\u30e9\u30fc\u306e\u51e6\u7406<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class MemoryAwareRegex {\nprivate:\n    static constexpr size_t MAX_INPUT_LENGTH = 1024 * 1024; \/\/ 1MB\n\npublic:\n    static std::optional&lt;std::vector&lt;std::string&gt;&gt; findMatches(\n        const std::string&amp; text,\n        const std::regex&amp; pattern\n    ) {\n        if (text.length() &gt; MAX_INPUT_LENGTH) {\n            std::cerr &lt;&lt; \"Input text too large\" &lt;&lt; std::endl;\n            return std::nullopt;\n        }\n\n        try {\n            std::vector&lt;std::string&gt; matches;\n            auto words_begin = std::sregex_iterator(\n                text.begin(), text.end(), pattern\n            );\n            auto words_end = std::sregex_iterator();\n\n            \/\/ \u4e88\u60f3\u3055\u308c\u308b\u6700\u5927\u30de\u30c3\u30c1\u6570\u3067\u4e8b\u524d\u306b\u30e1\u30e2\u30ea\u3092\u78ba\u4fdd\n            matches.reserve(std::distance(words_begin, words_end));\n\n            for (auto i = words_begin; i != words_end; ++i) {\n                matches.push_back(i-&gt;str());\n            }\n            return matches;\n        } catch (const std::bad_alloc&amp; e) {\n            std::cerr &lt;&lt; \"Memory allocation failed: \" &lt;&lt; e.what() &lt;&lt; std::endl;\n            return std::nullopt;\n        }\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-19\">\u30c7\u30d0\u30c3\u30b0\u6642\u306e\u52b9\u7387\u7684\u306a\u30a2\u30d7\u30ed\u30fc\u30c1<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30d1\u30bf\u30fc\u30f3\u306e\u30c7\u30d0\u30c3\u30b0\u652f\u63f4\u30af\u30e9\u30b9<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class RegexDebugger {\npublic:\n    static void debugPattern(const std::string&amp; pattern, \n                           const std::string&amp; test_input) {\n        std::cout &lt;&lt; \"Debug Information:\" &lt;&lt; std::endl;\n        std::cout &lt;&lt; \"Pattern: \" &lt;&lt; pattern &lt;&lt; std::endl;\n        std::cout &lt;&lt; \"Test input: \" &lt;&lt; test_input &lt;&lt; std::endl;\n\n        try {\n            std::regex re(pattern);\n            std::smatch matches;\n            bool found = std::regex_search(test_input, matches, re);\n\n            std::cout &lt;&lt; \"Match found: \" &lt;&lt; (found ? \"Yes\" : \"No\") &lt;&lt; std::endl;\n            if (found) {\n                std::cout &lt;&lt; \"Number of matches: \" &lt;&lt; matches.size() &lt;&lt; std::endl;\n                for (size_t i = 0; i &lt; matches.size(); ++i) {\n                    std::cout &lt;&lt; \"Group \" &lt;&lt; i &lt;&lt; \": '\" &lt;&lt; matches[i] \n                              &lt;&lt; \"' (Position: \" &lt;&lt; matches.position(i) \n                              &lt;&lt; \", Length: \" &lt;&lt; matches.length(i) &lt;&lt; \")\" \n                              &lt;&lt; std::endl;\n                }\n            }\n        } catch (const std::regex_error&amp; e) {\n            std::cout &lt;&lt; \"Regex Error: \" &lt;&lt; e.what() &lt;&lt; std::endl;\n            std::cout &lt;&lt; \"Error Code: \" &lt;&lt; e.code() &lt;&lt; std::endl;\n        }\n    }\n\n    static void visualizeMatches(const std::string&amp; input,\n                               const std::regex&amp; pattern) {\n        std::string result = input;\n        auto it = std::sregex_iterator(input.begin(), input.end(), pattern);\n        auto end = std::sregex_iterator();\n\n        \/\/ \u30de\u30c3\u30c1\u3057\u305f\u90e8\u5206\u3092\u53ef\u8996\u5316\n        while (it != end) {\n            const auto&amp; match = *it;\n            size_t pos = match.position();\n            size_t len = match.length();\n            result.insert(pos + len, \"]\");\n            result.insert(pos, \"[\");\n            ++it;\n        }\n\n        std::cout &lt;&lt; \"Visualized matches: \" &lt;&lt; result &lt;&lt; std::endl;\n    }\n};<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30ed\u30ae\u30f3\u30b0\u6a5f\u80fd\u306e\u5b9f\u88c5<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class RegexLogger {\nprivate:\n    static std::ofstream log_file_;\n    static std::mutex log_mutex_;\n\npublic:\n    static void initLogger(const std::string&amp; filename) {\n        log_file_.open(filename, std::ios::app);\n    }\n\n    static void logOperation(const std::string&amp; pattern,\n                           const std::string&amp; input,\n                           const std::string&amp; operation,\n                           bool success) {\n        std::lock_guard&lt;std::mutex&gt; lock(log_mutex_);\n        if (log_file_.is_open()) {\n            auto now = std::chrono::system_clock::now();\n            auto time = std::chrono::system_clock::to_time_t(now);\n\n            log_file_ &lt;&lt; \"Time: \" &lt;&lt; std::ctime(&amp;time)\n                     &lt;&lt; \"Operation: \" &lt;&lt; operation &lt;&lt; std::endl\n                     &lt;&lt; \"Pattern: \" &lt;&lt; pattern &lt;&lt; std::endl\n                     &lt;&lt; \"Input: \" &lt;&lt; input &lt;&lt; std::endl\n                     &lt;&lt; \"Result: \" &lt;&lt; (success ? \"Success\" : \"Failed\")\n                     &lt;&lt; std::endl &lt;&lt; std::endl;\n        }\n    }\n\n    static void closeLogger() {\n        if (log_file_.is_open()) {\n            log_file_.close();\n        }\n    }\n};\n\nstd::ofstream RegexLogger::log_file_;\nstd::mutex RegexLogger::log_mutex_;<\/pre>\n\n\n\n<p>\u4e3b\u8981\u306a\u30c7\u30d0\u30c3\u30b0\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30a8\u30e9\u30fc\u8a3a\u65ad<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30a8\u30e9\u30fc\u30b3\u30fc\u30c9\u306e\u89e3\u6790<\/li>\n\n\n\n<li>\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u8a73\u7d30\u5316<\/li>\n\n\n\n<li>\u30b9\u30bf\u30c3\u30af\u30c8\u30ec\u30fc\u30b9\u306e\u6d3b\u7528<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30d1\u30bf\u30fc\u30f3\u691c\u8a3c<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6bb5\u968e\u7684\u306a\u30d1\u30bf\u30fc\u30f3\u30c6\u30b9\u30c8<\/li>\n\n\n\n<li>\u30de\u30c3\u30c1\u7d50\u679c\u306e\u53ef\u8996\u5316<\/li>\n\n\n\n<li>\u30b0\u30eb\u30fc\u30d7\u30ad\u30e3\u30d7\u30c1\u30e3\u306e\u78ba\u8a8d<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u5206\u6790<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5b9f\u884c\u6642\u9593\u306e\u8a08\u6e2c<\/li>\n\n\n\n<li>\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u306e\u76e3\u8996<\/li>\n\n\n\n<li>\u30dc\u30c8\u30eb\u30cd\u30c3\u30af\u306e\u7279\u5b9a<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\u3068\u30c7\u30d0\u30c3\u30b0\u624b\u6cd5\u3092\u9069\u5207\u306b\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001std::regex\u3092\u4f7f\u7528\u3057\u305f\u30b3\u30fc\u30c9\u306e\u4fe1\u983c\u6027\u3068\u4fdd\u5b88\u6027\u3092\u5927\u5e45\u306b\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-20\">\u5b9f\u8df5\u7684\u306a\u7528\u9014\u30b1\u30fc\u30b9\u96c6<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-21\">\u30ed\u30b0\u89e3\u6790\u3067\u306e\u6d3b\u7528\u4f8b<\/h3>\n\n\n\n<p>\u30ed\u30b0\u30d5\u30a1\u30a4\u30eb\u306e\u89e3\u6790\u306f\u3001std::regex\u306e\u6700\u3082\u4e00\u822c\u7684\u3067\u5b9f\u7528\u7684\u306a\u7528\u9014\u306e\u4e00\u3064\u3067\u3059\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30a8\u30e9\u30fc\u30ed\u30b0\u306e\u89e3\u6790<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class LogAnalyzer {\nprivate:\n    \/\/ \u30a8\u30e9\u30fc\u30ed\u30b0\u306e\u30d1\u30bf\u30fc\u30f3\n    std::regex error_pattern_;\n    std::regex timestamp_pattern_;\n\npublic:\n    LogAnalyzer() : \n        error_pattern_(\"\\\\[(ERROR|CRITICAL)\\\\]\\\\s+(.*?)\\\\s+at\\\\s+(\\\\d{4}-\\\\d{2}-\\\\d{2}\\\\s+\\\\d{2}:\\\\d{2}:\\\\d{2})\"),\n        timestamp_pattern_(\"\\\\d{4}-\\\\d{2}-\\\\d{2}\\\\s+\\\\d{2}:\\\\d{2}:\\\\d{2}\") {}\n\n    struct LogEntry {\n        std::string severity;\n        std::string message;\n        std::string timestamp;\n    };\n\n    std::vector&lt;LogEntry&gt; analyzeLogFile(const std::string&amp; filename) {\n        std::vector&lt;LogEntry&gt; errors;\n        std::ifstream file(filename);\n        std::string line;\n\n        while (std::getline(file, line)) {\n            std::smatch matches;\n            if (std::regex_search(line, matches, error_pattern_)) {\n                LogEntry entry{\n                    matches[1].str(),  \/\/ severity\n                    matches[2].str(),  \/\/ message\n                    matches[3].str()   \/\/ timestamp\n                };\n                errors.push_back(entry);\n            }\n        }\n        return errors;\n    }\n\n    \/\/ \u7279\u5b9a\u306e\u6642\u9593\u7bc4\u56f2\u306e\u30a8\u30e9\u30fc\u3092\u62bd\u51fa\n    std::vector&lt;LogEntry&gt; filterByTimeRange(\n        const std::vector&lt;LogEntry&gt;&amp; entries,\n        const std::string&amp; start_time,\n        const std::string&amp; end_time\n    ) {\n        std::vector&lt;LogEntry&gt; filtered;\n        for (const auto&amp; entry : entries) {\n            if (entry.timestamp &gt;= start_time &amp;&amp; \n                entry.timestamp &lt;= end_time) {\n                filtered.push_back(entry);\n            }\n        }\n        return filtered;\n    }\n};<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30a2\u30af\u30bb\u30b9\u30ed\u30b0\u306e\u5206\u6790<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class AccessLogAnalyzer {\nprivate:\n    \/\/ Apache\u5f62\u5f0f\u306e\u30a2\u30af\u30bb\u30b9\u30ed\u30b0\u30d1\u30bf\u30fc\u30f3\n    std::regex access_pattern_;\n\npublic:\n    AccessLogAnalyzer() : \n        access_pattern_(R\"((\\d+\\.\\d+\\.\\d+\\.\\d+)\\s+-\\s+-\\s+\\[(.*?)\\]\\s+\"([^\"]+)\"\\s+(\\d+)\\s+(\\d+))\") {}\n\n    struct AccessEntry {\n        std::string ip;\n        std::string timestamp;\n        std::string request;\n        int status_code;\n        int bytes_sent;\n    };\n\n    \/\/ \u30a2\u30af\u30bb\u30b9\u30ed\u30b0\u306e\u89e3\u6790\u3068\u7d71\u8a08\u60c5\u5831\u306e\u751f\u6210\n    std::map&lt;std::string, int&gt; analyzeIPAddresses(const std::string&amp; filename) {\n        std::map&lt;std::string, int&gt; ip_counts;\n        std::ifstream file(filename);\n        std::string line;\n\n        while (std::getline(file, line)) {\n            std::smatch matches;\n            if (std::regex_search(line, matches, access_pattern_)) {\n                ip_counts[matches[1].str()]++;\n            }\n        }\n        return ip_counts;\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-22\">\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u306e\u30d1\u30fc\u30b9\u51e6\u7406<\/h3>\n\n\n\n<p>\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u306e\u89e3\u6790\u3068\u5024\u306e\u62bd\u51fa\u306bstd::regex\u3092\u6d3b\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>INI\u30d5\u30a1\u30a4\u30eb\u30d1\u30fc\u30b5\u30fc<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class INIParser {\nprivate:\n    std::regex section_pattern_;\n    std::regex key_value_pattern_;\n    std::map&lt;std::string, std::map&lt;std::string, std::string&gt;&gt; config_;\n\npublic:\n    INIParser() :\n        section_pattern_(R\"(\\[([^\\]]+)\\])\"),\n        key_value_pattern_(R\"(([^=\\s]+)\\s*=\\s*([^\\s].*))\")\n    {}\n\n    bool parseFile(const std::string&amp; filename) {\n        std::ifstream file(filename);\n        std::string line;\n        std::string current_section;\n\n        while (std::getline(file, line)) {\n            \/\/ \u7a7a\u884c\u3068\u30b3\u30e1\u30f3\u30c8\u3092\u30b9\u30ad\u30c3\u30d7\n            if (line.empty() || line[0] == ';') continue;\n\n            std::smatch matches;\n            if (std::regex_match(line, matches, section_pattern_)) {\n                current_section = matches[1].str();\n            }\n            else if (std::regex_match(line, matches, key_value_pattern_)) {\n                config_[current_section][matches[1].str()] = matches[2].str();\n            }\n        }\n        return true;\n    }\n\n    std::string getValue(const std::string&amp; section, \n                        const std::string&amp; key,\n                        const std::string&amp; default_value = \"\") {\n        auto section_it = config_.find(section);\n        if (section_it != config_.end()) {\n            auto key_it = section_it-&gt;second.find(key);\n            if (key_it != section_it-&gt;second.end()) {\n                return key_it-&gt;second;\n            }\n        }\n        return default_value;\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-23\">\u5165\u529b\u30c7\u30fc\u30bf\u306e\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u5b9f\u88c5<\/h3>\n\n\n\n<p>\u30e6\u30fc\u30b6\u30fc\u5165\u529b\u3084\u30c7\u30fc\u30bf\u30d5\u30a1\u30a4\u30eb\u306e\u691c\u8a3c\u306bstd::regex\u3092\u6d3b\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30d5\u30a9\u30fc\u30e0\u30d0\u30ea\u30c7\u30fc\u30bf<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class FormValidator {\nprivate:\n    std::regex email_pattern_;\n    std::regex phone_pattern_;\n    std::regex date_pattern_;\n    std::regex password_pattern_;\n\npublic:\n    FormValidator() :\n        email_pattern_(\"[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\\\\.[a-zA-Z]{2,}\"),\n        phone_pattern_(\"\\\\+?\\\\d{1,4}[-.\\\\s]?\\\\(?\\\\d{1,3}\\\\)?[-.\\\\s]?\\\\d{1,4}[-.\\\\s]?\\\\d{1,4}[-.\\\\s]?\\\\d{1,9}\"),\n        date_pattern_(\"\\\\d{4}-(0[1-9]|1[0-2])-(0[1-9]|[12]\\\\d|3[01])\"),\n        password_pattern_(\"^(?=.*[A-Za-z])(?=.*\\\\d)(?=.*[@$!%*#?&amp;])[A-Za-z\\\\d@$!%*#?&amp;]{8,}$\")\n    {}\n\n    struct ValidationResult {\n        bool is_valid;\n        std::string error_message;\n    };\n\n    ValidationResult validateEmail(const std::string&amp; email) {\n        if (std::regex_match(email, email_pattern_)) {\n            return {true, \"\"};\n        }\n        return {false, \"Invalid email format\"};\n    }\n\n    ValidationResult validatePhone(const std::string&amp; phone) {\n        if (std::regex_match(phone, phone_pattern_)) {\n            return {true, \"\"};\n        }\n        return {false, \"Invalid phone number format\"};\n    }\n\n    ValidationResult validateDate(const std::string&amp; date) {\n        if (std::regex_match(date, date_pattern_)) {\n            return {true, \"\"};\n        }\n        return {false, \"Invalid date format (YYYY-MM-DD)\"};\n    }\n\n    ValidationResult validatePassword(const std::string&amp; password) {\n        if (std::regex_match(password, password_pattern_)) {\n            return {true, \"\"};\n        }\n        return {false, \"Password must contain at least 8 characters, \"\n                      \"including letters, numbers, and special characters\"};\n    }\n};<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30c7\u30fc\u30bf\u30d5\u30a1\u30a4\u30eb\u30d0\u30ea\u30c7\u30fc\u30bf<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class DataFileValidator {\nprivate:\n    std::regex csv_line_pattern_;\n    std::regex json_pattern_;\n\npublic:\n    DataFileValidator() :\n        csv_line_pattern_(R\"((?:[^,\\\\\"]|\\\"(?:[^\\\"]|\\\\\\\")*\\\")*(?:,(?:[^,\\\\\"]|\\\"(?:[^\\\"]|\\\\\\\")*\\\")*)*\\r?\\n?)\"),\n        json_pattern_(R\"(\\{(?:[^{}]|(?R))*\\})\")\n    {}\n\n    bool validateCSVLine(const std::string&amp; line) {\n        return std::regex_match(line, csv_line_pattern_);\n    }\n\n    bool validateJSONObject(const std::string&amp; json) {\n        return std::regex_match(json, json_pattern_);\n    }\n\n    \/\/ CSV\u30d5\u30a1\u30a4\u30eb\u5168\u4f53\u306e\u691c\u8a3c\n    std::vector&lt;size_t&gt; validateCSVFile(const std::string&amp; filename) {\n        std::vector&lt;size_t&gt; invalid_lines;\n        std::ifstream file(filename);\n        std::string line;\n        size_t line_number = 0;\n\n        while (std::getline(file, line)) {\n            line_number++;\n            if (!validateCSVLine(line)) {\n                invalid_lines.push_back(line_number);\n            }\n        }\n        return invalid_lines;\n    }\n};<\/pre>\n\n\n\n<p>\u5b9f\u8df5\u7684\u306a\u4f7f\u7528\u306b\u304a\u3051\u308b\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u8003\u616e<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30d1\u30bf\u30fc\u30f3\u306e\u4e8b\u524d\u30b3\u30f3\u30d1\u30a4\u30eb<\/li>\n\n\n\n<li>\u9069\u5207\u306a\u30d0\u30c3\u30d5\u30a1\u30b5\u30a4\u30ba\u306e\u8a2d\u5b9a<\/li>\n\n\n\n<li>\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u306e\u6700\u9069\u5316<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30a8\u30e9\u30fc\u51e6\u7406<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u9069\u5207\u306a\u4f8b\u5916\u51e6\u7406<\/li>\n\n\n\n<li>\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u660e\u78ba\u5316<\/li>\n\n\n\n<li>\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u51e6\u7406\u306e\u5b9f\u88c5<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u6027<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30d1\u30bf\u30fc\u30f3\u306e\u96c6\u4e2d\u7ba1\u7406<\/li>\n\n\n\n<li>\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306e\u6574\u5099<\/li>\n\n\n\n<li>\u30c6\u30b9\u30c8\u30b1\u30fc\u30b9\u306e\u4f5c\u6210<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u5b9f\u8df5\u7684\u306a\u7528\u9014\u30b1\u30fc\u30b9\u3092\u53c2\u8003\u306b\u3001\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u8981\u4ef6\u306b\u5fdc\u3058\u3066\u9069\u5207\u306b\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3059\u308b\u3053\u3068\u3067\u3001std::regex\u306e\u6a5f\u80fd\u3092\u6700\u5927\u9650\u306b\u6d3b\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Warning: Undefined array key &#8220;is_admin&#8221; in \/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/ &#8230; <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":{"0":"post-2161","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-cpp","7":"nothumb"},"_links":{"self":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/2161","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2161"}],"version-history":[{"count":1,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/2161\/revisions"}],"predecessor-version":[{"id":2162,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/2161\/revisions\/2162"}],"wp:attachment":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2161"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2161"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2161"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}