Update : Matrixify now on Sublime Package Control.
Matrixify gets it's first update .. Oh Yeah !! :P , Seriously just a little update. I am new to Python and Sublime Text 2 plugins development but I used enough plugins to make me have the hunch that the method I'm using to read the format is not the genius one !!
I am lazy to look for solution so I asked on the ST2 forum and facelessuser answered : Sublime have an input form that prompt so it's a logical choice.
Another thing that come up is the indexes that I used for my arrays to output the matrix become much easier to calculate when the lines 0 is included.
output += separators[i%dim] + line + (lengths[(i%dim)] - len(line))*" "
if (i%dim) == dim-1:
output += separators[dim] + "\n"