I have an array @a, in which i have 3 rows in the $a[0], 2 rows in $a[1] and $a[2] as shown below.

<th><rowspan=2>Target protein</th>
<th><colspan=2>Purified protein concentration</th>
<th><rowspan=3>Activity</th>

<th>Mg/liter culture</th>
<th>Mg/g dry cell weight</th>

<th>Mg/liter culture</th>
<th>Mg/g dry cell weight</th>

[download]

What i want to do is, if $a[0] has rowspan=2 then we have to place one empty <th></th> in the corresponding place of $a[1], likewise if rowspan=3 the we have to place empty <th></th> in $a[0] and $a[1] in corresponding place.

output:
<th><rowspan=2>Target protein</th>
<th><colspan=2>Purified protein concentration</th>
<th><rowspan=3>Activity</th>

<th></th>
<th>Mg/liter culture</th>
<th><rowspan=2>Mg/g dry cell weight</th>
<th></th>

<th>Mg/liter culture</th>
<th>Mg/g dry cell weight</th>
<th></th>
<th></th>

[download]

I tried by splitting newline characters and by using the index value of the newarray i assigned the empty cell in the next $a[1]. But i could not able to get the correct solution. Is there any other way to do this.

20050426 Janitored by Corion: Fixed formatting and inline <th> tags

In reply to array manipulation by Anonymous Monk

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
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