[O] Add minlevel parameter to column view parameters

[Thomas Cordival]

Hello,

you will find attached a simple patch to add a new parameter to the
column view dynamic block: minlevel.

This parameter mirrors the behavior of the maxlevel parameter: only
headings below a given level will be included in the table.

I use this feature in documents where I want to keep a list of items
(headings) on which I define properties alongside a table summarizing
these properties:

* Summary
#+BEGIN: columnview :id input :minlevel 3
| Year | Title              | Theatre  |
|------+--------------------+----------|
| 1995 | Scream             | New York |
| 1999 | Scream 2           | Tokyo    |
| 2013 | 500 days of summer | Paris    |
#+END:
* Movies
:PROPERTIES:
:ID: input
:COLUMNS: %Year %ITEM(Title) %Theatre
:END:
** Horror
*** Scream
:PROPERTIES:
:year:     1995
:theatre:  New York
:END:
*** Scream 2
:PROPERTIES:
:year:     1999
:theatre:  Tokyo
:END:
** Romance
*** 500 days of summer
:PROPERTIES:
:year:     2013
:theatre:  Paris
:END:

0001-Add-minlevel-to-column-view-parameters.patch
Description: Text Data

--
Thomas Cordival