[英]Generating a diff of two DOM elements (rather than two strings) in javascript
This works really well for strings: http://ejohn.org/projects/javascript-diff-algorithm/ 这对于字符串非常有效: http : //ejohn.org/projects/javascript-diff-algorithm/
And I used to do string diffing server side (in ruby), but It's really hard to also take into consideration forced tag structure, like in tables. 我曾经在服务器端(使用ruby)做字符串差异处理,但是要像表中那样考虑强制标记结构确实非常困难。
What I did with just non table html was too add spans around the added and deleted text / inline elements. 我对非表格html所做的操作也是在已添加和已删除的text / inline元素周围添加跨度。 That method works well until you start trying to diff groups of TDs. 在您开始尝试比较TD组之前,该方法效果很好。
So, is there any Javascript library out there that will generate a visual diff with tables? 那么,是否有任何Javascript库可以与表生成视觉差异?
UPDATE / Example: 更新/示例:
Table1: Table 2:
<table> <table>
<tr> <tr>
<td>sometext</td> <td>some <b>text</b></td>
<td>moretext</td> <td><b>more text</b></td>
</tr> <tr>
</table> </table>
Resulting Table (just a possibility, as there are many ways to show diffs) 结果表(这是一种可能性,因为有很多方法可以显示差异)
<table>
<tr>
<td>some<del>text</del><add> <b>text</b></add></td>
<td><del>more text</del><add><b>more text</b></add></td>
</tr>
</table>
Here is my initial attempt. 这是我最初的尝试。 It uses the diff library that you referenced and assumes that the tables are of the same dimensions. 它使用您引用的diff库,并假定表的尺寸相同。
$(document).ready(function() {
$("#tbl1 tbody").children("tr").each(function(rownum, tr) {
_tr = $("<tr>");
tr2 = $($("#tbl2 tbody tr").get(rownum));
$(tr).children("td").each(function(colnum, td) {
text = $(td).html();
text2 = $($(tr2).children("td").get(colnum)).html();
_tr.append("<td>" + diffString(text, text2) + "</td>");
});
$("#results").append(_tr);
});
});
I recently implemented https://github.com/teamwork/visual-dom-diff which compares 2 DOM nodes and generates a DocumentFragment
with all differences wrapped in <ins>
and <del>
elements as appropriate. 我最近实现了https://github.com/teamwork/visual-dom-diff ,它比较了2个DOM节点并生成了一个DocumentFragment
其中所有差异都适当地包装在<ins>
和<del>
元素中。 It think it could be appropriate for your use case. 它认为这可能适合您的用例。
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