Fix table formula bug with negative result numbers
Willian Henney writes:
> The following is using today's git trunk of org-mode with emacs
> 23.1.94.1 (aquamacs 2.0preview5)
>
> Consider the following table
>
> | -8 |
> | |
> | |
> | |
> #+TBLFM: $1=@-1 - 1::@1$1=-8
>
> Evaluate formulas once (C-u C-c *):
>
> | -8 |
> | -9 |
> |----|
> | -1 |
>
> Evaluate formulas again (C-u C-c *):
>
> | -8 |
> | -9 |
> |----|
> |----|
>
> What I expected:
>
> | -8 |
> | -9 |
> | -10 |
> | -11 |
>
> The problem always seems to start at -10. When I turn on table
> debugging, it first calculates the -10 value correctly, but then fails
> to recognise the -10 cell as a number when calculating the next row,
> using 0 instead, which results in -1. This is because during the
> intermediate formatting of the cell the minus sign in -10 abuts the
> column separator: "|-10 |", and the "|-" part is then interpreted as
> the beginning of an hline.
Carsten Dominik