The main purpose of the mimeconf file is
to specify how the different MIME types are handled for
indexing. This is done in the [index]
section, which should not be modified casually. See the comments in
the file.
The file also contains other definitions which affect the query language and the GUI, and which, in retrospect, should have been stored elsewhere.
The [icons] section allows you to change
the icons which are displayed by the recoll GUI
in the result lists (the values are the basenames of the
png images inside the
iconsdir directory (which is itself defined
in recoll.conf).
The [categories] section defines the
groupings of MIME types into categories as used
when adding an rclcat clause to a
query language
query. rclcat clauses are also used by the
default guifilters buttons in the GUI (see
next).
The filter controls appear at the top of the recoll GUI, either as checkboxes just above the result list, or as a dropbox in the tool area.
By default, they are labeled: media,
message, other,
presentation, spreadsheet and
text, and each maps to a document category. This
is determined in the [guifilters] section, where
each control is defined by a variable naming a query language
fragment.
A simple example will hopefully make things clearer.
[guifilters]
Big Books = dir:"~/My Books" size>10K
My Docs = dir:"~/My Documents"
Small Books = dir:"~/My Books" size<10K
System Docs = dir:/usr/share/doc
The above definition would create four filter checkboxes,
labelled Big Books, My Docs,
etc.
The text after the equal sign must be a valid query language fragment, and, when the button is checked, it will be combined with the rest of the query with an AND conjunction.
Any name text before a colon character will be erased in the display, but used for sorting. You can use this to display the checkboxes in any order you like. For example, the following would do exactly the same as above, but ordering the checkboxes in the reverse order.
[guifilters]
d:Big Books = dir:"~/My Books" size>10K
c:My Docs = dir:"~/My Documents"
b:Small Books = dir:"~/My Books" size<10K
a:System Docs = dir:/usr/share/doc
As you may have guessed, The default
[guifilters] section looks like:
[guifilters]
text = rclcat:text
spreadsheet = rclcat:spreadsheet
presentation = rclcat:presentation
media = rclcat:media
message = rclcat:message
other = rclcat:other
