JavaScript版代码高亮

2019-06-04 00:24:03刘景俊

    codeArr[word_index++] = this._codetxt.charAt(i);
   }
  }

  var quote_opened    = false; //引用标记
  var slash_star_comment_opened = false; //多行注释标记
  var slash_slash_comment_opened = false; //单行注释标记
  var line_num     = 1;  //行号
  var quote_char     = "";  //引用标记类型
  var tag_opened     = false; //标记开始

  htmlTxt[htmlTxt.length] = ("<div style='font-family: Courier New;font-size:12px;overflow:auto;margin:1px;padding:6px;color:#333333'>");

  //按分割字,分块显示
  for (var i=0; i <=word_index; i++){

   //处理空行(由于转义带来)
   if(typeof(codeArr[i])=="undefined"||codeArr[i].length==0){
    continue;
   }
   //处理空格
   if (codeArr[i] == " "){
    htmlTxt[htmlTxt.length] = (" ");
   //处理关键字
   } else if (!slash_slash_comment_opened&&!slash_star_comment_opened && !quote_opened && this.isKeyword(codeArr[i])){
    htmlTxt[htmlTxt.length] = ("<span style='color:#0000FF;'>" + codeArr[i] + "</span>");
   //处理普通对象
   } else if (!slash_slash_comment_opened&&!slash_star_comment_opened && !quote_opened && this.isCommonObject(codeArr[i])){
    htmlTxt[htmlTxt.length] = ("<span style='color:#808000;'>" + codeArr[i] + "</span>");
   //处理标记
   } else if (!slash_slash_comment_opened&&!slash_star_comment_opened && !quote_opened && tag_opened && this.isTag(codeArr[i])){
    htmlTxt[htmlTxt.length] = ("<span style='color:#0000FF;'>" + codeArr[i] + "</span>");
   //处理换行
   } else if (codeArr[i] == "r"){
    if (slash_slash_comment_opened){
     htmlTxt[htmlTxt.length] = ("</span>");
     slash_slash_comment_opened = false;
    }
    htmlTxt[htmlTxt.length] = ("<br/>");
    line_num++;
   //处理双引号(引号前不能为转义字符)
   } else if (this._quotation.contains(codeArr[i])&&!slash_star_comment_opened&&!slash_slash_comment_opened){
    if (quote_opened){
     //是相应的引号
     if (quote_char==codeArr[i]){
      if(tag_opened){
       htmlTxt[htmlTxt.length] = (codeArr[i]+"</span><span style='color:#808000;'>");