js正则笔记-白红宇

js正则笔记

阅读量：5080 次

发布时间：2019-06-12

本文共 4611 字，大约阅读时间需要 15 分钟。

1 //内容  2 var innerhtml = $('.reading_box_m').html().replace(/ tag="?[一二三四五六七八九十]+"?/ig, "");  3 var innerhtml = innerhtml.replace(/ id="?\d+"?/ig, "");  4 //初步匹配篇 章 节  5 var regALl_Rge1 = new RegExp('<(div|p)\\s+class="?(ue_codeTitle|ue_chapterTitle|ue_sectionTitle)"?>([^<]+)
      ', 'ig');  6 var titleLis = innerhtml.match(regALl_Rge1);  7   8   9 innerhtml.replace(regALl_Rge1, function () { 10 lip = lip + 1; 11 //篇 12 var format_1_children = $('
'); 13 //章 14 var format_2_children = $('
'); 15 //节 16 var format_3_children = $('
'); 17 var args = arguments; 18 //篇 19 if (args[2] == 'ue_codeTitle') { 20 format_1_children.children('a').prepend('').attr('href', '#' + lip).append(args[3]); 21 format_1.append(format_1_children); 22 //当前篇 23 currF1 = format_1.children('li').last(); 24 f = f + 1; 25 } 26 //章 27 else if (args[2] == 'ue_chapterTitle') { 28 if (f == 0 || f != lastF) { 29 format_2_children.children('a').prepend('').attr('href', '#' + lip).append(args[3]); 30 //当前章 31 currF2 = $("
      
"); 32 currF2.append(format_2_children); 33 //如果没有篇 34 if (!currF1) { 35 format_1.append(format_1_children); 36 //当前篇 37 currF1 = format_1.children('li').last(); 38 currF1.children('a').after(currF2).remove(); 39 currF2.show(); 40 f = 1; 41 } 42 else { 43 currF1.children('a').after(currF2); 44 } 45 } 46 else { 47 format_2_children.children('a').prepend('').attr('href', '#' + lip).append(args[3]); 48 currF1.children('ul').append(format_2_children); 49 } 50 f2 = f2 + 1; 51 lastF = f; 52 } 53 //节 54 else if (args[2] == 'ue_sectionTitle') { 55 format_3_children.children('a').prepend('').attr('href', '#' + lip).append(args[3]); 56 if (f2 == 0 || f2 != lastF2) { 57 //当前节 58 currF3 = $("
      
"); 59 currF2.children('li').last().children('a').end().append(currF3); 60 } 61 currF3.append(format_3_children); 62 lastF2 = f2; 63 } 64 });  65  66  67  68   69 /*********收索关键字变色开始***********/ 70 function HightLight(searchList) { 71 var arrStyle = [ 72 { style: "color:red;padding:0px 2px;" }, 73 { style: "color:orange;padding:0px 2px;" }, 74 { style: "color:yellow;padding:0px 2px;" }, 75 { style: "color:green;padding:0px 2px;" }, 76 { style: "color:aqua;padding:0px 2px;" }, 77 { style: "color:blue;padding:0px 2px;" }, 78 { style: "color:purple;padding:0px 2px;" } 79 ]; 80 searchList = decodeURIComponent(searchList); 81 if (!searchList) return; 82 for (var j = 0; j < searchList.split(',').length ; j++) { 83 var kyesVal = searchList.split(',')[j]; 84 $(".reading_box_m p").filter(function (i) { 85 if ($(this).text().indexOf(kyesVal) != -1) { 86 var r = RegExp(kyesVal, 'ig'); 87 $(this).html($(this).html().replace(r, '' + kyesVal + '')); 88 } 89 }); 90 } 91   92 } 93 /*********收索关键字变色结束***********/ 94   95   96 //关键字搜索 97 function Sercah() { 98 var kyesVal = $.trim(document.getElementById('txtMenKey').value); 99 //if (keys_test != "" && keys_test == kyesVal) { return; }//waitmsg("已找到对应的" + g_keys_count + "处关键字！", 1);相同关键字查询时返回100 $(".reading").children('reading_box_m p').css({ 'background': "#FFF" })101 $('span[keys]').removeAttr('style').removeAttr("id");102 g_keys = 0;103 var lip = 0;104 if (kyesVal != '' && kyesVal != '关键字查询') {105 $(".reading_box_m p").filter(function (i) {106 if ($(this).text().indexOf(kyesVal) != -1) {107 var r = RegExp(kyesVal, 'ig');108 $(this).html($(this).text().replace(r, function () {109 var arg = arguments;110 lip++;111 return '' + kyesVal + '';112 }))113 }114 });115 keys_test = kyesVal; //关键字记录赋值116 g_keys_count = lip; //关键字次数117 if (arguments.length > 0 && arguments[0] == '0') {
    //有参数表示按钮点击没有查询到提示118 if (lip == 0)119 waitmsg("没有找到对应的关键字！", 4);120 else {121 waitmsg("已找到对应的" + g_keys_count + "处关键字！", 1);122 PositionKeys('down', 0);//有参数是跳转到第一个查询位置123 }124 }125 } else {126 if (arguments.length > 0 && arguments[0] == '0')//有参数表示按钮点击没有查询到提示127 $('#txtMenKey').val('关键字查询');128 keys_test = '';129 waitmsg("请输入查询关键字！", 4);130 };131 };132  133 //定位关键字134 function PositionKeys(t, c) {135  136  137 var countkey = parseInt(g_keys_count);138 if (countkey == 0) {139 waitmsg("没有找到对应的关键字！", 4);140 return;141 }142 if (t == "down") {143 g_keys = g_keys + 1;144 if (g_keys > countkey) {145 g_keys = 1;146 }147 }148 else if (t == "up") {149 g_keys = g_keys - 1;150 if (g_keys <= 0) {151 g_keys = countkey;152 }153 }154 $("span[id^='keys']").css("border", "none");155 $("#keys" + g_keys).css("border", "red 1px solid");156 var topVal = $('.reading_box').scrollTop() + parseInt($("#keys" + g_keys).offset().top);157 $('.reading_box').stop(true).animate({ scrollTop: (topVal - 30) }, 500);158 }; 159  160