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On Sun, Apr 06, 2003 at 10:57:38AM -0400, Leo wrote:
> Inside a table I am trying to use arithmetic expressions to specify
> cell horizontal size. Let say, I want to set cell width to
>     <minus|1par|4fn>
> 
> In fact, I can externally edit *.tm file with a text editor and
> specify something like
>     <cwith|1|1|1|1|cell width|<minus|1par|4fn>>
> and it works!

I am happy to see that hack is actually useful for other people.

> However, I found it very clumsy to be forced to use an external editor
> to do such a basic thing.
> 
> Is it possible to enter arithmetic expressions while specifying
> length directly into TeXmacs??

Yes, the trick is to "Disactivate the table" (there is menu item for
that) so you can directly edit the table properties from inside
TeXmacs.

> P.S. BTW, I tried to enter <minus|1par|4fn> at the "Cell width" prompt
> (after M-t h w) but all occurencies of <|> charactes got backslash
> escaped and, thus, lost their special meaning.

Yes, the "length arithmetic in typesetter" is a bit of a hack and does
not really fit in the rest of the user interface.

                                                            -- DDAA