再次选择高亮单词,由于标记高亮单词的标签由<mark>改为了<span>,所以在取消单词高亮状态时将标签均改为了<span>,替换时的代码也冗余了,所以也进行了一部分删除。
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				|  | @ -30,15 +30,9 @@ function highLight() { | |||
|     const list = allWords.split(" "); // 将所有的生词放入一个list中
 | ||||
|     if(word !== null && word !== "" && word !== " "){ | ||||
|         let articleContent_fb2 = articleContent; | ||||
|         if(localStorage.getItem("nowWord").indexOf(word) !== -1){ | ||||
|             while(articleContent_fb2.toLowerCase().indexOf(word.toLowerCase()) !== -1){ | ||||
|                 // 找到副本中和list[i]匹配的第一个单词(第一种匹配情况),并赋值给list[i]。
 | ||||
|                 const index = articleContent_fb2.toLowerCase().indexOf(word.toLowerCase()); | ||||
|                 word = articleContent_fb2.substring(index, index + word.length); | ||||
|                 articleContent_fb2 = articleContent_fb2.substring(index + word.length);    // 使用副本中list[i]之后的子串替换掉副本
 | ||||
|                 articleContent = articleContent.replace(new RegExp("<mark>"+word+"</mark>", "g"), word) | ||||
|             } | ||||
|             pickedWords.value = localStorage.getItem("nowWord").replace(word,""); | ||||
|         if(localStorage.getItem("nowWords").indexOf(word) !== -1 || localStorage.getItem("nowWords").indexOf(word.toLowerCase()) !== -1){ | ||||
|             articleContent = articleContent.replace(new RegExp('<span class="highlighted">' + word + '</span>', "gi"), word); | ||||
|             pickedWords.value = localStorage.getItem("nowWords").replace(word,""); | ||||
|             document.getElementById("article").innerHTML = articleContent; | ||||
|             return; | ||||
|         } | ||||
|  | @ -48,39 +42,26 @@ function highLight() { | |||
|         list[i] = list[i].replace(/(^\W*)|(\W*$)/g, ""); // 消除单词两边的非单词字符
 | ||||
|         list[i] = list[i].replace('|', ""); | ||||
|         list[i] = list[i].replace('?', ""); | ||||
|         if (list[i] != "" && !totalSet.has(list[i]) && "<mark>".indexOf(list[i]) === -1 && "</mark>".indexOf(list[i]) === -1) { | ||||
|         if (list[i] != "" && !totalSet.has(list[i])) { | ||||
|             // 返回所有匹配单词的集合, 正则表达式RegExp()中, "\b"匹配一个单词的边界, g 表示全局匹配, i 表示对大小写不敏感。
 | ||||
|             let matches = new Set(articleContent.match(new RegExp("\\b" + list[i] + "\\b", "gi"))); | ||||
|             let articleContent_fb = articleContent;  //文章副本
 | ||||
|             if (matches.has("mark")) { | ||||
|                 // 优先处理单词为 "mark" 的情况
 | ||||
|                 totalSet = new Set(["mark", ...totalSet]); | ||||
|             } | ||||
|             while(articleContent_fb.toLowerCase().indexOf(list[i].toLowerCase()) !== -1 && list[i]!=""){ | ||||
|                 //找到副本中和list[i]匹配的第一个单词(第一种匹配情况),并赋值给list[i]。
 | ||||
|                 const index = articleContent_fb.toLowerCase().indexOf(list[i].toLowerCase()); | ||||
|                 list[i] = articleContent_fb.substring(index, index + list[i].length); | ||||
|                 articleContent_fb = articleContent_fb.substring(index + list[i].length);    // 使用副本中list[i]之后的子串替换掉副本
 | ||||
|                 articleContent = articleContent.replace(new RegExp("\\b"+list[i]+"\\b","g"),"<mark>" + list[i] + "</mark>"); | ||||
|             } | ||||
|             totalSet = new Set([...totalSet, ...matches]); | ||||
|         } | ||||
|     } | ||||
|     // 删除所有的mark标签,防止标签发生嵌套
 | ||||
|     articleContent = articleContent.replace(/<(mark)[^>]*>/gi, ""); | ||||
|     articleContent = articleContent.replace(/<(\/mark)[^>]*>/gi, ""); | ||||
|     // 删除所有的"<span class='highlighted'>"标签,防止标签发生嵌套
 | ||||
|     articleContent = articleContent.replace(new RegExp('<span class="highlighted">',"gi"), "") | ||||
|     articleContent = articleContent.replace(new RegExp("</span>","gi"), ""); | ||||
|     // 将文章中所有出现该单词word的地方改为:"<span class='highlighted'>" + word + "</span>"。
 | ||||
|     for (let word of totalSet) { | ||||
|         articleContent = articleContent.replace(new RegExp("\\b" + word + "\\b", "g"), "<span class='highlighted'>" + word + "</span>"); | ||||
|     } | ||||
|     document.getElementById("article").innerHTML = articleContent; | ||||
| 
 | ||||
| } | ||||
| 
 | ||||
| function cancelHighlighting() { | ||||
|     let articleContent = document.getElementById("article").innerHTML; | ||||
|     articleContent = articleContent.replace(/<(mark)[^>]*>/gi, ""); | ||||
|     articleContent = articleContent.replace(/<(\/mark)[^>]*>/gi, ""); | ||||
|     articleContent = articleContent.replace(new RegExp('<span class="highlighted">',"gi"), "") | ||||
|     articleContent = articleContent.replace(new RegExp("</span>","gi"), ""); | ||||
|     document.getElementById("article").innerHTML = articleContent; | ||||
| } | ||||
| 
 | ||||
|  |  | |||
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