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jsdiff

Required for hitdb

此脚本不应直接安装，它是一个供其他脚本使用的外部库。如果您需要使用该库，请在脚本元属性加入：// @require https://update.gf.qytechs.cn/scripts/2351/6256/jsdiff.js 

  1. // ==UserScript==
  2. // @name        jsdiff
  3. // @description Required for hitdb
  4. // ==/UserScript==
  5. function escape(s) {
  6.     var n = s;
  7.     n = n.replace(/&/g, "&");
  8.     n = n.replace(/</g, "&lt;");
  9.     n = n.replace(/>/g, "&gt;");
  10.     n = n.replace(/"/g, "&quot;");
  11.  
  12.     return n;
  13. }
  14.  
  15. function diffString( o, n ) {
  16.   o = o.replace(/\s+$/, '');
  17.   n = n.replace(/\s+$/, '');
  18.  
  19.   var out = diff(o == "" ? [] : o.split(/\s+/), n == "" ? [] : n.split(/\s+/) );
  20.   var str = "";
  21.  
  22.   var oSpace = o.match(/\s+/g);
  23.   if (oSpace == null) {
  24.     oSpace = ["\n"];
  25.   } else {
  26.     oSpace.push("\n");
  27.   }
  28.   var nSpace = n.match(/\s+/g);
  29.   if (nSpace == null) {
  30.     nSpace = ["\n"];
  31.   } else {
  32.     nSpace.push("\n");
  33.   }
  34.  
  35.   if (out.n.length == 0) {
  36.       for (var i = 0; i < out.o.length; i++) {
  37.         str += '<del>' + escape(out.o[i]) + oSpace[i] + "</del>";
  38.       }
  39.   } else {
  40.     if (out.n[0].text == null) {
  41.       for (n = 0; n < out.o.length && out.o[n].text == null; n++) {
  42.         str += '<del>' + escape(out.o[n]) + oSpace[n] + "</del>";
  43.       }
  44.     }
  45.  
  46.     for ( var i = 0; i < out.n.length; i++ ) {
  47.       if (out.n[i].text == null) {
  48.         str += '<ins>' + escape(out.n[i]) + nSpace[i] + "</ins>";
  49.       } else {
  50.         var pre = "";
  51.  
  52.         for (n = out.n[i].row + 1; n < out.o.length && out.o[n].text == null; n++ ) {
  53.           pre += '<del>' + escape(out.o[n]) + oSpace[n] + "</del>";
  54.         }
  55.         str += " " + out.n[i].text + nSpace[i] + pre;
  56.       }
  57.     }
  58.   }
  59.   
  60.   return str;
  61. }
  62.  
  63. function randomColor() {
  64.     return "rgb(" + (Math.random() * 100) + "%, " + 
  65.                     (Math.random() * 100) + "%, " + 
  66.                     (Math.random() * 100) + "%)";
  67. }
  68. function diffString2( o, n ) {
  69.   o = o.replace(/\s+$/, '');
  70.   n = n.replace(/\s+$/, '');
  71.  
  72.   var out = diff(o == "" ? [] : o.split(/\s+/), n == "" ? [] : n.split(/\s+/) );
  73.  
  74.   var oSpace = o.match(/\s+/g);
  75.   if (oSpace == null) {
  76.     oSpace = ["\n"];
  77.   } else {
  78.     oSpace.push("\n");
  79.   }
  80.   var nSpace = n.match(/\s+/g);
  81.   if (nSpace == null) {
  82.     nSpace = ["\n"];
  83.   } else {
  84.     nSpace.push("\n");
  85.   }
  86.  
  87.   var os = "";
  88.   var colors = new Array();
  89.   for (var i = 0; i < out.o.length; i++) {
  90.       colors[i] = randomColor();
  91.  
  92.       if (out.o[i].text != null) {
  93.           os += '<span style="background-color: ' +colors[i]+ '">' + 
  94.                 escape(out.o[i].text) + oSpace[i] + "</span>";
  95.       } else {
  96.           os += "<del>" + escape(out.o[i]) + oSpace[i] + "</del>";
  97.       }
  98.   }
  99.  
  100.   var ns = "";
  101.   for (var i = 0; i < out.n.length; i++) {
  102.       if (out.n[i].text != null) {
  103.           ns += '<span style="background-color: ' +colors[out.n[i].row]+ '">' + 
  104.                 escape(out.n[i].text) + nSpace[i] + "</span>";
  105.       } else {
  106.           ns += "<ins>" + escape(out.n[i]) + nSpace[i] + "</ins>";
  107.       }
  108.   }
  109.  
  110.   return { o : os , n : ns };
  111. }
  112.  
  113. function diff( o, n ) {
  114.   var ns = new Object();
  115.   var os = new Object();
  116.   
  117.   for ( var i = 0; i < n.length; i++ ) {
  118.     if ( ns[ n[i] ] == null )
  119.       ns[ n[i] ] = { rows: new Array(), o: null };
  120.     ns[ n[i] ].rows.push( i );
  121.   }
  122.   
  123.   for ( var i = 0; i < o.length; i++ ) {
  124.     if ( os[ o[i] ] == null )
  125.       os[ o[i] ] = { rows: new Array(), n: null };
  126.     os[ o[i] ].rows.push( i );
  127.   }
  128.   
  129.   for ( var i in ns ) {
  130.     if ( ns[i].rows.length == 1 && typeof(os[i]) != "undefined" && os[i].rows.length == 1 ) {
  131.       n[ ns[i].rows[0] ] = { text: n[ ns[i].rows[0] ], row: os[i].rows[0] };
  132.       o[ os[i].rows[0] ] = { text: o[ os[i].rows[0] ], row: ns[i].rows[0] };
  133.     }
  134.   }
  135.   
  136.   for ( var i = 0; i < n.length - 1; i++ ) {
  137.     if ( n[i].text != null && n[i+1].text == null && n[i].row + 1 < o.length && o[ n[i].row + 1 ].text == null && 
  138.          n[i+1] == o[ n[i].row + 1 ] ) {
  139.       n[i+1] = { text: n[i+1], row: n[i].row + 1 };
  140.       o[n[i].row+1] = { text: o[n[i].row+1], row: i + 1 };
  141.     }
  142.   }
  143.   
  144.   for ( var i = n.length - 1; i > 0; i-- ) {
  145.     if ( n[i].text != null && n[i-1].text == null && n[i].row > 0 && o[ n[i].row - 1 ].text == null && 
  146.          n[i-1] == o[ n[i].row - 1 ] ) {
  147.       n[i-1] = { text: n[i-1], row: n[i].row - 1 };
  148.       o[n[i].row-1] = { text: o[n[i].row-1], row: i - 1 };
  149.     }
  150.   }
  151.   
  152.   return { o: o, n: n };
  153. }

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