[PHP] Cleaning up HTML table structure

[Jens Lehmann]

The following problem seems to be hard to solve:

A PHP-Script reads in an HTML-File and removes linebreaks, tabs and not 
needed spaces. After that the script should reconstruct the 
table-structure this way (example):

<table ... >
  <tr ... >
    <td ... >
      <table ...>
        <tr ... >
          <td ... >
            ...
          </td>
          <td ... >
            ...
          </td>
        </tr>
      </table>
    </td>
  </tr>
</table>
The next thing is that lines longer than for instance 80 chars 
($maxlength) should be split up into several lines.

Is there any good way to solve this? Regular expressions seem to be of 
limited use because the recursion of tables can be infinitely deep and 
the lines between <td and </td> must not not be longer than $maxlength 
and should have the appropriate number of spaces before it. Stepping 
through the string (the whole file is a string) with simple 
String-functions is very complicated either.

I hope you can give me some hints how to find a (simple) solution for 
this problem.

Jens

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