☰

V2EX Used Code Striker++

在 V2EX 送码帖中，根据评论和配置，自动划掉主楼/附言中被提及的 Code，并可选显示领取者。正则和关键词均可配置。

  1. // ==UserScript==
  2. // @name         V2EX Used Code Striker++
  3. // @namespace    http://tampermonkey.net/
  4. // @version      1.5.0
  5. // @description  在 V2EX 送码帖中，根据评论和配置，自动划掉主楼/附言中被提及的 Code，并可选显示领取者。正则和关键词均可配置。
  6. // @author       与Gemini协作完成
  7. // @match        https://www.v2ex.com/t/*
  8. // @icon         https://www.google.com/s2/favicons?sz=64&domain=v2ex.com
  9. // @grant        GM_getValue
  10. // @grant        GM_setValue
  11. // @grant        GM_deleteValue
  12. // @grant        GM_registerMenuCommand
  13. // @grant        GM_addStyle
  14. // @license      MIT
  15. // ==/UserScript==
  16.  
  17. (function() {
  18.     'use strict';
  19.  
  20.     // --- Storage Keys ---
  21.     const STORAGE_KEY_CODE_REGEX = 'v2ex_striker_code_regex';
  22.     const STORAGE_KEY_TITLE_KEYWORDS = 'v2ex_striker_title_keywords';
  23.     const STORAGE_KEY_COMMENT_KEYWORDS = 'v2ex_striker_comment_keywords';
  24.     const STORAGE_KEY_SHOW_USER = 'v2ex_striker_show_user';
  25.     const MODAL_ID = 'v2ex-striker-settings-modal';
  26.     const OVERLAY_ID = 'v2ex-striker-settings-overlay';
  27.  
  28.     // --- Default Settings ---
  29.     const defaultCodeRegexString = '/(?:[A-Z0-9][-_]?){6,}/gi';
  30.     const defaultTitleKeywords = ['送', '发', '福利', '邀请码', '激活码', '码', 'giveaway', 'invite', 'code'];
  31.     const defaultCommentKeywords = ['用', 'used', 'taken', '领', 'redeem', 'thx', '感谢'];
  32.     const defaultShowUserInfo = true;
  33.  
  34.     // --- Helper: Parse Regex String ---
  35.     const defaultCodeRegexObject = new RegExp(defaultCodeRegexString.match(/^\/(.+)\/([gimyus]*)$/)[1], defaultCodeRegexString.match(/^\/(.+)\/([gimyus]*)$/)[2]);
  36.  
  37.     function parseRegexString(regexString) {
  38.         try {
  39.             const match = regexString.match(/^\/(.+)\/([gimyus]*)$/);
  40.             if (match && match[1]) { // Ensure pattern part exists
  41.                 return new RegExp(match[1], match[2] || ''); // Use flags or empty string if none
  42.             } else {
  43.                 console.warn('V2EX Striker: Invalid regex format in storage ("' + regexString + '"). Using default.');
  44.                 return defaultCodeRegexObject;
  45.             }
  46.         } catch (e) {
  47.             console.error('V2EX Striker: Error parsing stored regex ("' + regexString + '"). Using default.', e);
  48.             return defaultCodeRegexObject;
  49.         }
  50.     }
  51.  
  52.     // --- Load Settings ---
  53.     const codeRegexString = GM_getValue(STORAGE_KEY_CODE_REGEX, defaultCodeRegexString);
  54.     const titleKeywordsString = GM_getValue(STORAGE_KEY_TITLE_KEYWORDS, defaultTitleKeywords.join(','));
  55.     const commentKeywordsString = GM_getValue(STORAGE_KEY_COMMENT_KEYWORDS, defaultCommentKeywords.join(','));
  56.     const showUserInfoEnabled = GM_getValue(STORAGE_KEY_SHOW_USER, defaultShowUserInfo);
  57.  
  58.     // Parse loaded regex
  59.     const activeCodeRegex = parseRegexString(codeRegexString); // This is the RegExp object to use
  60.  
  61.     let activeTitleKeywords = [];
  62.     if (titleKeywordsString && titleKeywordsString.trim() !== '') {
  63.         activeTitleKeywords = titleKeywordsString.split(',').map(kw => kw.trim().toLowerCase()).filter(Boolean);
  64.     }
  65.  
  66.     let activeCommentKeywords = [];
  67.     if (commentKeywordsString && commentKeywordsString.trim() !== '') {
  68.         activeCommentKeywords = commentKeywordsString.split(',').map(kw => kw.trim()).filter(Boolean);
  69.     }
  70.  
  71.     console.log('V2EX Striker: Active Code Regex:', activeCodeRegex);
  72.     console.log('V2EX Striker: Title Keywords:', activeTitleKeywords.length > 0 ? activeTitleKeywords : '(Inactive - No keywords configured)');
  73.     console.log('V2EX Striker: Comment Keywords:', activeCommentKeywords.length > 0 ? activeCommentKeywords : '(None - All comment codes considered used)');
  74.     console.log('V2EX Striker: Show Username:', showUserInfoEnabled);
  75.  
  76.  
  77.     // --- Settings Modal Functions (Define early) ---
  78.     function buildSettingsModal() {
  79.         document.getElementById(MODAL_ID)?.remove();
  80.         document.getElementById(OVERLAY_ID)?.remove();
  81.  
  82.         const overlay = document.createElement('div');
  83.         overlay.id = OVERLAY_ID;
  84.         overlay.onclick = closeSettingsModal;
  85.  
  86.         const modal = document.createElement('div');
  87.         modal.id = MODAL_ID;
  88.  
  89.         const title = document.createElement('h2');
  90.         title.textContent = 'V2EX Used Code Striker 设置';
  91.         modal.appendChild(title);
  92.  
  93.         // 1. Code Regex
  94.         const regexDiv = document.createElement('div');
  95.         regexDiv.className = 'setting-item';
  96.         const regexLabel = document.createElement('label');
  97.         regexLabel.textContent = 'Code 正则表达式 (格式: /pattern/flags):';
  98.         regexLabel.htmlFor = 'v2ex-striker-regex-input';
  99.         const regexInput = document.createElement('input'); // Use text input for regex
  100.         regexInput.type = 'text';
  101.         regexInput.id = 'v2ex-striker-regex-input';
  102.         regexInput.value = GM_getValue(STORAGE_KEY_CODE_REGEX, defaultCodeRegexString); // Load string value
  103.         regexDiv.appendChild(regexLabel);
  104.         regexDiv.appendChild(regexInput);
  105.         modal.appendChild(regexDiv);
  106.         const regexDesc = document.createElement('p');
  107.         regexDesc.className = 'setting-desc';
  108.         regexDesc.textContent = '用于匹配主楼和评论中 Code 的正则表达式。';
  109.         modal.appendChild(regexDesc);
  110.  
  111.  
  112.         // 2. Title Keywords
  113.         const titleDiv = document.createElement('div');
  114.         titleDiv.className = 'setting-item';
  115.         const titleLabel = document.createElement('label');
  116.         titleLabel.textContent = '帖子标题关键词 (英文逗号分隔):';
  117.         titleLabel.htmlFor = 'v2ex-striker-title-keywords-input';
  118.         const titleInput = document.createElement('textarea');
  119.         titleInput.id = 'v2ex-striker-title-keywords-input';
  120.         titleInput.value = GM_getValue(STORAGE_KEY_TITLE_KEYWORDS, defaultTitleKeywords.join(','));
  121.         titleInput.rows = 2;
  122.         titleDiv.appendChild(titleLabel);
  123.         titleDiv.appendChild(titleInput);
  124.         modal.appendChild(titleDiv);
  125.         const titleDesc = document.createElement('p');
  126.         titleDesc.className = 'setting-desc';
  127.         titleDesc.textContent = '包含这些词的帖子标题才会激活脚本。留空（不推荐）则不根据标题判断，所有帖子都会执行脚本。';
  128.         modal.appendChild(titleDesc);
  129.  
  130.         // 3. Comment Keywords
  131.         const commentDiv = document.createElement('div');
  132.         commentDiv.className = 'setting-item';
  133.         const commentLabel = document.createElement('label');
  134.         commentLabel.textContent = '评论区关键词 (英文逗号分隔):';
  135.         commentLabel.htmlFor = 'v2ex-striker-comment-keywords-input';
  136.         const commentInput = document.createElement('textarea');
  137.         commentInput.id = 'v2ex-striker-comment-keywords-input';
  138.         commentInput.value = GM_getValue(STORAGE_KEY_COMMENT_KEYWORDS, defaultCommentKeywords.join(','));
  139.         commentInput.rows = 3;
  140.         commentDiv.appendChild(commentLabel);
  141.         commentDiv.appendChild(commentInput);
  142.         modal.appendChild(commentDiv);
  143.         const commentDesc = document.createElement('p');
  144.         commentDesc.className = 'setting-desc';
  145.         commentDesc.textContent = '评论需包含这些词才会标记对应 Code。留空则评论中提到的所有 Code 都被标记。';
  146.         modal.appendChild(commentDesc);
  147.  
  148.         // 4. Show User Info
  149.         const showUserDiv = document.createElement('div');
  150.         showUserDiv.className = 'setting-item setting-item-checkbox';
  151.         const showUserInput = document.createElement('input');
  152.         showUserInput.type = 'checkbox';
  153.         showUserInput.id = 'v2ex-striker-show-user-input';
  154.         showUserInput.checked = GM_getValue(STORAGE_KEY_SHOW_USER, defaultShowUserInfo);
  155.         const showUserLabel = document.createElement('label');
  156.         showUserLabel.textContent = '在划掉的 Code 旁显示使用者信息';
  157.         showUserLabel.htmlFor = 'v2ex-striker-show-user-input';
  158.         showUserDiv.appendChild(showUserInput);
  159.         showUserDiv.appendChild(showUserLabel);
  160.         modal.appendChild(showUserDiv);
  161.  
  162.         // --- Action Buttons ---
  163.         const buttonContainer = document.createElement('div');
  164.         buttonContainer.className = 'setting-actions-container'; // Container for alignment
  165.  
  166.         const resetButton = document.createElement('button');
  167.         resetButton.textContent = '重置为默认';
  168.         resetButton.className = 'reset-button';
  169.         resetButton.onclick = resetSettingsToDefaults;
  170.  
  171.         const actionButtonsDiv = document.createElement('div');
  172.         actionButtonsDiv.className = 'setting-actions'; // Right-aligned buttons
  173.  
  174.         const cancelButton = document.createElement('button');
  175.         cancelButton.textContent = '取消';
  176.         cancelButton.className = 'cancel-button';
  177.         cancelButton.onclick = closeSettingsModal;
  178.  
  179.         const saveButton = document.createElement('button');
  180.         saveButton.textContent = '保存设置';
  181.         saveButton.className = 'save-button';
  182.         saveButton.onclick = saveSettings;
  183.  
  184.         actionButtonsDiv.appendChild(cancelButton);
  185.         actionButtonsDiv.appendChild(saveButton);
  186.  
  187.         buttonContainer.appendChild(resetButton); // Reset on the left
  188.         buttonContainer.appendChild(actionButtonsDiv); // Save/Cancel group on the right
  189.         modal.appendChild(buttonContainer);
  190.  
  191.         document.body.appendChild(overlay);
  192.         document.body.appendChild(modal);
  193.     }
  194.  
  195.     function closeSettingsModal() {
  196.         document.getElementById(MODAL_ID)?.remove();
  197.         document.getElementById(OVERLAY_ID)?.remove();
  198.     }
  199.  
  200.     function saveSettings() {
  201.         const regexValue = document.getElementById('v2ex-striker-regex-input').value.trim();
  202.         const titleKeywords = document.getElementById('v2ex-striker-title-keywords-input').value.trim();
  203.         const commentKeywords = document.getElementById('v2ex-striker-comment-keywords-input').value.trim();
  204.         const showUser = document.getElementById('v2ex-striker-show-user-input').checked;
  205.  
  206.         // Basic validation for regex format (optional but good practice)
  207.         if (!/^\/.+\/[gimyus]*$/.test(regexValue) && regexValue !== '') {
  208.              if (!confirm(`输入的正则表达式 "${regexValue}" 格式可能不正确 (应为 /pattern/flags)，确定要保存吗？`)) {
  209.                  return; // Don't save if user cancels
  210.              }
  211.         }
  212.  
  213.         GM_setValue(STORAGE_KEY_CODE_REGEX, regexValue);
  214.         GM_setValue(STORAGE_KEY_TITLE_KEYWORDS, titleKeywords);
  215.         GM_setValue(STORAGE_KEY_COMMENT_KEYWORDS, commentKeywords);
  216.         GM_setValue(STORAGE_KEY_SHOW_USER, showUser);
  217.  
  218.         closeSettingsModal();
  219.         alert('设置已保存！\n请刷新页面以应用新的设置。');
  220.     }
  221.  
  222.     function resetSettingsToDefaults() {
  223.         if (confirm("确定要将正则、标题关键词和评论区关键词重置为默认设置吗？")) {
  224.             // Set storage back to defaults
  225.             GM_setValue(STORAGE_KEY_CODE_REGEX, defaultCodeRegexString);
  226.             GM_setValue(STORAGE_KEY_TITLE_KEYWORDS, defaultTitleKeywords.join(','));
  227.             GM_setValue(STORAGE_KEY_COMMENT_KEYWORDS, defaultCommentKeywords.join(','));
  228.             GM_setValue(STORAGE_KEY_SHOW_USER, defaultShowUserInfo);
  229.  
  230.             // Update fields in the current modal immediately
  231.             const modal = document.getElementById(MODAL_ID);
  232.             if (modal) {
  233.                 modal.querySelector('#v2ex-striker-regex-input').value = defaultCodeRegexString;
  234.                 modal.querySelector('#v2ex-striker-title-keywords-input').value = defaultTitleKeywords.join(',');
  235.                 modal.querySelector('#v2ex-striker-comment-keywords-input').value = defaultCommentKeywords.join(',');
  236.                 modal.querySelector('#v2ex-striker-show-user-input').checked = defaultShowUserInfo;
  237.                 // Show user checkbox remains as it was
  238.             }
  239.             // No need for alert here, immediate update is feedback enough
  240.             console.log("V2EX Striker: Settings reset to defaults (excluding Show User).");
  241.         }
  242.     }
  243.  
  244.     // --- Add Modal Styles (Always add styles) ---
  245.     // Added styles for input[type=text] and adjusted button layout
  246.     GM_addStyle(`
  247.         #${OVERLAY_ID} { /* Styles remain the same */
  248.             position: fixed !important; top: 0 !important; left: 0 !important; width: 100% !important; height: 100% !important;
  249.             background-color: rgba(0, 0, 0, 0.4) !important; z-index: 99998 !important; backdrop-filter: blur(3px);
  250.             display: block !important; margin: 0 !important; padding: 0 !important; border: none !important;
  251.         }
  252.         #${MODAL_ID} { /* Styles remain the same */
  253.             position: fixed !important; top: 50% !important; left: 50% !important; transform: translate(-50%, -50%) !important;
  254.             width: clamp(300px, 90%, 500px) !important; max-width: 500px !important; background-color: #f9f9f9 !important; border-radius: 12px !important;
  255.             box-shadow: 0 5px 25px rgba(0, 0, 0, 0.15) !important; padding: 25px 30px !important; z-index: 99999 !important;
  256.             font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif !important;
  257.             color: #333 !important; box-sizing: border-box !important; display: block !important; margin: 0 !important; border: none !important;
  258.             max-height: 95vh !important; overflow-y: auto !important; /* Allow scrolling */
  259.         }
  260.         #${MODAL_ID} h2 { margin-top: 0 !important; margin-bottom: 25px !important; font-size: 1.4em !important; font-weight: 600 !important; text-align: center !important; color: #1d1d1f !important; }
  261.         #${MODAL_ID} .setting-item { margin-bottom: 10px !important; }
  262.         #${MODAL_ID} .setting-desc { font-size: 0.8em !important; color: #6e6e73 !important; margin-top: 0px !important; margin-bottom: 15px !important; }
  263.         #${MODAL_ID} label { display: block !important; margin-bottom: 5px !important; font-weight: 500 !important; font-size: 0.95em !important; color: #333 !important; }
  264.         #${MODAL_ID} input[type="text"],
  265.         #${MODAL_ID} textarea {
  266.             width: 100% !important; padding: 10px !important; border: 1px solid #d2d2d7 !important; border-radius: 6px !important;
  267.             font-size: 0.9em !important; box-sizing: border-box !important; font-family: inherit !important; background-color: #fff !important; color: #333 !important;
  268.         }
  269.         #${MODAL_ID} textarea { resize: vertical !important; min-height: 40px !important; }
  270.         #${MODAL_ID} input[type="text"]:focus,
  271.         #${MODAL_ID} textarea:focus {
  272.             border-color: #007aff !important; outline: none !important; box-shadow: 0 0 0 2px rgba(0, 122, 255, 0.2) !important;
  273.          }
  274.         #${MODAL_ID} .setting-item-checkbox { display: flex !important; align-items: center !important; margin-top: 20px !important; margin-bottom: 25px !important; }
  275.         #${MODAL_ID} .setting-item-checkbox input[type="checkbox"] { margin-right: 10px !important; width: 16px !important; height: 16px !important; accent-color: #007aff !important; vertical-align: middle !important; }
  276.         #${MODAL_ID} .setting-item-checkbox label { margin-bottom: 0 !important; font-weight: normal !important; display: inline-block !important; vertical-align: middle !important; }
  277.         #${MODAL_ID} .setting-actions-container { /* New container for button layout */
  278.             margin-top: 25px !important;
  279.             display: flex !important;
  280.             justify-content: space-between !important; /* Space between reset and save/cancel */
  281.             align-items: center !important;
  282.         }
  283.         #${MODAL_ID} .setting-actions { /* Group for save/cancel */
  284.             display: flex !important;
  285.             gap: 10px !important;
  286.         }
  287.         #${MODAL_ID} button {
  288.             padding: 10px 20px !important; border: none !important; border-radius: 6px !important;
  289.             font-size: 0.95em !important; font-weight: 500 !important; cursor: pointer !important; transition: background-color 0.2s ease !important;
  290.         }
  291.         #${MODAL_ID} button.reset-button {
  292.              background-color: #f5f5f7; /* Lighter gray for reset */
  293.              color: #555;
  294.              padding: 10px 15px !important; /* Slightly smaller padding maybe */
  295.         }
  296.          #${MODAL_ID} button.reset-button:hover {
  297.              background-color: #e9e9ed;
  298.          }
  299.         #${MODAL_ID} button.save-button { 
  300.             background-color: #007aff !important; color: white !important;
  301.         }
  302.         #${MODAL_ID} button.save-button:hover { background-color: #005ecf !important; }
  303.         #${MODAL_ID} button.cancel-button { background-color: #e5e5ea !important; color: #1d1d1f !important; }
  304.         #${MODAL_ID} button.cancel-button:hover { background-color: #dcdce0 !important; }
  305.     `);
  306.  
  307.     // --- Menu Command Registration (Always register) ---
  308.     function registerSettingsMenu() {
  309.         GM_registerMenuCommand('⚙️ V2EX Striker 设置', buildSettingsModal);
  310.     }
  311.     registerSettingsMenu();
  312.  
  313.     // --- Initial Title Check ---
  314.     const postTitle = document.title.toLowerCase();
  315.     let isGiveawayPost = false;
  316.     if (activeTitleKeywords.length > 0) {
  317.         isGiveawayPost = activeTitleKeywords.some(keyword => postTitle.includes(keyword));
  318.     } else {
  319.         console.log('V2EX Striker: Title keyword list is empty, skipping title check.');
  320.         isGiveawayPost = true; // Assume run always if title keywords are empty
  321.     }
  322.  
  323.     if (!isGiveawayPost) {
  324.         console.log('V2EX Striker: Post title does not match configured keywords. Script inactive for marking codes on this page.');
  325.         return; // Stop script execution for marking codes
  326.     }
  327.  
  328.     // --- IF TITLE CHECK PASSES, CONTINUE WITH THE REST OF THE LOGIC ---
  329.  
  330.     console.log('V2EX Striker: Post title matched. Running main script logic...');
  331.  
  332.     // --- Regex, Styles, Classes (Define constants used below) ---
  333.     // Use activeCodeRegex parsed earlier
  334.     const usedStyle = 'text-decoration: line-through; color: grey;';
  335.     const userInfoStyle = 'font-size: smaller; margin-left: 5px; color: #999; text-decoration: none;';
  336.     const markedClass = 'v2ex-used-code-marked';
  337.     const userInfoClass = 'v2ex-code-claimant';
  338.  
  339.     // --- Keyword Regex Building (Comment Keywords) ---
  340.     let keywordRegexCombinedTest = (text) => false; // Default test function
  341.     if (activeCommentKeywords.length > 0) {
  342.         const wordCharRegex = /^[a-zA-Z0-9_]+$/;
  343.         const englishKeywords = activeCommentKeywords.filter(kw => wordCharRegex.test(kw));
  344.         const nonWordBoundaryKeywords = activeCommentKeywords.filter(kw => !wordCharRegex.test(kw));
  345.         const regexParts = [];
  346.  
  347.         if (englishKeywords.length > 0) {
  348.             const englishPattern = `\\b(${englishKeywords.join('|')})\\b`;
  349.             const englishRegex = new RegExp(englishPattern, 'i');
  350.             regexParts.push((text) => englishRegex.test(text));
  351.         }
  352.         if (nonWordBoundaryKeywords.length > 0) {
  353.             const escapedNonWordKeywords = nonWordBoundaryKeywords.map(kw => kw.replace(/[.*+?^${}()|[\]\\]/g, '\\$&'));
  354.             const nonWordPattern = `(${escapedNonWordKeywords.join('|')})`;
  355.             const nonWordRegex = new RegExp(nonWordPattern, 'i');
  356.             regexParts.push((text) => nonWordRegex.test(text));
  357.         }
  358.         if (regexParts.length > 0) {
  359.             keywordRegexCombinedTest = (text) => regexParts.some(testFn => testFn(text));
  360.         }
  361.     }
  362.  
  363.  
  364.     // --- Helper Function: findTextNodes (Unchanged) ---
  365.     function findTextNodes(element, textNodes) {
  366.         if (!element) return;
  367.         for (const node of element.childNodes) {
  368.             if (node.nodeType === Node.TEXT_NODE) {
  369.                 if (node.nodeValue.trim().length > 0) {
  370.                     textNodes.push(node);
  371.                 }
  372.             } else if (node.nodeType === Node.ELEMENT_NODE) {
  373.                 if (!(node.tagName === 'SPAN' && node.classList.contains(markedClass)) &&
  374.                     !(node.tagName === 'A' && node.classList.contains(userInfoClass)))
  375.                 {
  376.                    if (node.tagName !== 'A' && node.tagName !== 'CODE') {
  377.                        findTextNodes(node, textNodes);
  378.                    } else {
  379.                        findTextNodes(node, textNodes);
  380.                    }
  381.                 }
  382.             }
  383.         }
  384.     }
  385.  
  386.     // --- Main Logic (Extraction and Marking) ---
  387.     console.log('V2EX Striker: Starting code extraction and marking...');
  388.  
  389.     // 1. Extract used Codes and Claimant Info from comments
  390.     const claimedCodeInfo = new Map();
  391.     const commentElements = document.querySelectorAll('div.cell[id^="r_"]');
  392.     // console.log(`V2EX Striker: Found ${commentElements.length} comment cells.`); // Less verbose
  393.  
  394.     const commentKeywordsAreActive = activeCommentKeywords.length > 0;
  395.  
  396.     commentElements.forEach((commentCell) => {
  397.         const replyContentEl = commentCell.querySelector('.reply_content');
  398.         const userLinkEl = commentCell.querySelector('strong > a[href^="/member/"]');
  399.         if (!replyContentEl || !userLinkEl) return;
  400.  
  401.         const commentText = replyContentEl.textContent;
  402.         const username = userLinkEl.textContent;
  403.         const profileUrl = userLinkEl.href;
  404.  
  405.         // Use the globally loaded activeCodeRegex here
  406.         const potentialCodes = commentText.match(activeCodeRegex); // Apply active regex
  407.  
  408.         if (potentialCodes) {
  409.             let commentMatchesCriteria = false;
  410.             if (!commentKeywordsAreActive) {
  411.                 commentMatchesCriteria = true;
  412.             } else if (keywordRegexCombinedTest(commentText)) {
  413.                 commentMatchesCriteria = true;
  414.             }
  415.  
  416.             if (commentMatchesCriteria) {
  417.                 potentialCodes.forEach(code => {
  418.                     const codeUpper = code.toUpperCase();
  419.                     if (!claimedCodeInfo.has(codeUpper)) {
  420.                         claimedCodeInfo.set(codeUpper, { username, profileUrl });
  421.                     }
  422.                 });
  423.             }
  424.         }
  425.     });
  426.  
  427.     // console.log(`V2EX Striker: Extracted info for ${claimedCodeInfo.size} unique potential used codes.`); // Less verbose
  428.  
  429.     if (claimedCodeInfo.size === 0) {
  430.         console.log('V2EX Striker: No potential used codes found in comments matching criteria. Exiting marking phase.');
  431.         return;
  432.     }
  433.  
  434.     // 2. Find and mark Codes in main post and supplements
  435.     const contentAreas = [
  436.         document.querySelector('.topic_content'),
  437.         ...document.querySelectorAll('.subtle .topic_content') // Corrected selector
  438.     ].filter(Boolean);
  439.  
  440.     // console.log(`V2EX Striker: Found ${contentAreas.length} content areas to scan for marking.`); // Less verbose
  441.  
  442.     contentAreas.forEach((area) => {
  443.         const textNodes = [];
  444.         findTextNodes(area, textNodes);
  445.  
  446.         textNodes.forEach(node => {
  447.             if (node.parentNode && (node.parentNode.classList.contains(markedClass) || node.parentNode.classList.contains(userInfoClass))) {
  448.                 return;
  449.             }
  450.  
  451.             const nodeText = node.nodeValue;
  452.             let match;
  453.             let lastIndex = 0;
  454.             const newNodeContainer = document.createDocumentFragment();
  455.             // Create a new RegExp instance based on the active one for stateful matching (lastIndex)
  456.             const regex = new RegExp(activeCodeRegex.source, activeCodeRegex.flags);
  457.             regex.lastIndex = 0; // Reset
  458.  
  459.             while ((match = regex.exec(nodeText)) !== null) {
  460.                 const matchedCode = match[0];
  461.                 const matchedCodeUpper = matchedCode.toUpperCase();
  462.  
  463.                 if (claimedCodeInfo.has(matchedCodeUpper)) {
  464.                     const claimInfo = claimedCodeInfo.get(matchedCodeUpper);
  465.                     if (match.index > lastIndex) {
  466.                         newNodeContainer.appendChild(document.createTextNode(nodeText.substring(lastIndex, match.index)));
  467.                     }
  468.                     const span = document.createElement('span');
  469.                     span.textContent = matchedCode;
  470.                     span.style.cssText = usedStyle;
  471.                     span.title = `Code "${matchedCode}" likely used by ${claimInfo.username}`;
  472.                     span.classList.add(markedClass);
  473.                     newNodeContainer.appendChild(span);
  474.  
  475.                     if (showUserInfoEnabled && claimInfo) {
  476.                         const userLink = document.createElement('a');
  477.                         userLink.href = claimInfo.profileUrl;
  478.                         userLink.textContent = ` (@${claimInfo.username})`;
  479.                         userLink.style.cssText = userInfoStyle;
  480.                         userLink.classList.add(userInfoClass);
  481.                         userLink.target = '_blank';
  482.                         userLink.title = `View profile of ${claimInfo.username}`;
  483.                         newNodeContainer.appendChild(userLink);
  484.                     }
  485.                     lastIndex = regex.lastIndex;
  486.                      // Prevent infinite loops for zero-length matches (shouldn't happen with current regex, but good practice)
  487.                     if (lastIndex === match.index) {
  488.                        regex.lastIndex++;
  489.                     }
  490.                 }
  491.                  // Ensure progress even if no match is found in claimedCodeInfo
  492.                  if (regex.lastIndex === match.index) {
  493.                     regex.lastIndex++;
  494.                 }
  495.             }
  496.  
  497.             if (lastIndex < nodeText.length) {
  498.                 newNodeContainer.appendChild(document.createTextNode(nodeText.substring(lastIndex)));
  499.             }
  500.  
  501.             if (newNodeContainer.hasChildNodes() && lastIndex > 0) {
  502.                 node.parentNode.replaceChild(newNodeContainer, node);
  503.             }
  504.         });
  505.     });
  506.  
  507.     console.log('V2EX Striker: Script finished.');
  508.  
  509. })();