1

我对 javascript 感到很害怕。我正在使用以下代码，我希望在文本区域中输入的换行符成为<br>标签。我一直在四处寻找，似乎找不到任何有用的东西，所以如果有人能帮助我，那就太好了！

    ////////////////SETTINGS//////////////
var editableElements = new Array("p", "h1","ul"); //List of editable elements
var doubleClick = false; //If false, single click is used to start editing
var allowNull = true; //If a editable region is allowed to be blank
var nullValue = "none"; //If it is blank, what should it show
var textEditorSize = 50; //In px
//////////////////////////////////////
var currentlyEditing = false;
function loadEditor(actionFile){
  contents = document.body.innerHTML;
  document.body.innerHTML = '<form action="' + actionFile + '" method="post" id="editor429_form"><input type="button" value="Save Page" name="savepage" onclick="savePage(this)" /><input type="hidden" name="pagecontents" value="" /></form>' + contents;
  document.onkeydown = function(event){ changeEditor(event); }
  for(z = 0; z <= editableElements.length - 1; z++){
    elements = document.getElementsByTagName(editableElements[z]);
    for(i = 0; i <= elements.length - 1; i++){
      if(doubleClick == true){
        elements[i].ondblclick = function(){ startEditor(this); }
      }else{
        elements[i].onclick = function(){ startEditor(this); }
      }
    }
  }
}
String.prototype.trim = function() {
    return this.replace(/^\s+|\s+$/g,"");
}


function startEditor(me){
  if(currentlyEditing == false){
    contents = me.innerHTML;
    me.innerHTML = '<textarea class="editor429_editor" id="editorBox" style="width: 100%;height:' + textEditorSize + 'px;" onblur="endEditor(this)">' + contents + '</textarea>';
    currentlyEditing = true;
    document.getElementById('editorBox').focus();
  }
}
function endEditor(me){
  contents = me.value;
  if(contents.trim() == "") contents = nullValue;
  me.parentNode.innerHTML = contents;
  currentlyEditing = false;
}
function savePage(me){
  me.parentNode.pagecontents.value = (document.body.innerHTML.search('</form>') != -1) ? document.body.innerHTML.trim().substr(document.body.innerHTML.indexOf('</form>') + 7):document.body.innerHTML.trim().substr(document.body.innerHTML.indexOf('</FORM>') + 7);
  me.parentNode.submit();
}
function changeEditor(e){
  //38 up
  //40 down
  if((e.keyCode == 38 || e.keyCode == 40 ) && e.altKey == true && currentlyEditing == true){
    if(e.keyCode == 38){
      document.getElementById('editorBox').style.height = "50px";
    }else if(e.keyCode == 40){

    }
  }
}
4

2 回答 2

1

尝试修改代码中的以下行，并注意我添加的其他“.replace”调用。他们用

   function endEditor(me){
      contents = me.value.replace(/\n/g, '<br />');
      if(contents.trim() == "") contents = nullValue;
      me.parentNode.innerHTML = contents;
      currentlyEditing = false;
   }

编辑：我把替换放在错误的地方。
我相信这个更新的代码应该只用来自 textarea 的文本替换换行符。以前，我是在整个 HTML 上这样做的。

于 2013-06-07T04:11:53.553 回答
0

尝试将所有 '\r'、'\n'、'\r\n' 和 '\n\r' 替换为

<br>

我会替换你的内容变量。

于 2013-06-07T04:05:59.190 回答