[OS X TeX] Suspicion of TeXShop bug

Ernesto Trajano de Lima ernesto.trajano at terra.com.br
Tue Nov 29 02:04:44 CET 2005

On Nov 28, 2005, at 12:24 PM, Bruno Voisin wrote:

> Recently I've observed the following several times (including three  
> times already today): you're in TeXShop, you modify the input in  
> the source window, you press Cmd-T to launch the typesetting of  
> this input, the typesetting proceeds, and when it's done you  
> realize by looking at the output in the preview window that the  
> modified input hasn't been taken into account. Namely, it happens  
> as if the input hasn't been saved before launching the typesetting,  
> whereas it normally should be. Of course, saving the input manually  
> by typing Cmd-S before Cmd-T solves the issue, but you shouldn't  
> normally have to do this, I think.
> Did anybody else observe the same problem, or is it just me? My  
> setup: latest Tiger, TeXShop 2.03, gwTeX with TL2005.

I think I may have spotted the problem. And it may have something to  
do with the undo manager (cmd+z) and the save function (cmd+s).  
First, let me tell you that I could also reproduce it using TextEdit.  
So, I think the bug may be Apple's fault! ;-) Well, the steps to  
reproduce it are the following:

1- Open a document with TeXShop.
2- Write something and save the document (cmd+s).
3- Typeset the document. Your changes are visible in the preview window.
4- Now, undo what you wrote (cmd+z). The black dot should appear in  
the close button (the red one).
5- Start writing anything. The black dot will disappear and, for the  
system, the document has not changed at all.
6- Typeset again. Your changes **won't** be visible in the preview  

This is really a serious bug! If, after step 6, you close the  
document without saving it, all data you've typed will be lost. The  
system thinks the document hasn't changed at all and will close it  
without asking you to save it before closing (as one would expect).

There is, however, one gotcha: if you use, on step 5, after writing  
something, one of the keyboard's arrow keys *AND* start writing  
again, the black dot will reappear in the red button and everything  
will be ok (i.e, TeXShop will save the document before typesetting  
and you'll see your changes, and, fi you close the document, it will  
ask you to save before closing).

My configuration is: iBook G4, Mac OS X 10.4.4, TeXShop version 2  
(2.03), TextEdit v. 1.20 (220).

FYI, I'm also posting this bug on Apple's bug reporting system. Hope  
they'll fix it ASAP!

P.S: I've added a link to this thread to the bug report (<http:// 
tug.org/pipermail/macostex-archives/2005-November/018945.html>) and,  
of course, gave credit to Bruno Voisin for noticing the bug!

Ernesto Trajano de Lima
.:::. Mac OS X Powered .:::.

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