Formulas can now refer to fields and regions in other tables, be it in
the same file or even in different files.
This also opens the door for more interesting R support, because
arbitrary tables in a file can now be accessed with appropriate
commands.
Finally, this commit also introduces a convenience for creating
references in tables. For the purpose of references, it will always
be *assumed* that there is another hline at the end if each table. So
for example in a table that has only a single hline, to separate
header from data, you can now access all of column two with
"@I$2..@II$2".
In a recent patch we have introduced names for all fields in the last
row. This has lead to a bug, that Org thinks there might be a field
formula associated with those fields. Now we check if there really is
one, and only in this case ask to overwrite it with a column formula.
Report by Henry Atting.
After the failed implementation of `@0' as a reference for the last
line, this is a second attempt to provide such references. I would
have liked to allow `@last' as the reference, that would have been
beautiful. However, too many regular expressions directly search for
`@' followed by a number, so this is too hard to implement.
Therefore, I am now turning the last row into a row of implicitly
named fields. From now on, $LR1, $LR2,... can be used to refer to
fields in the last row. These names may also appear on the left hand
side of formulas.
Carsten Dominik