[PATCH] add new fdi directives

[Richard Hughes]

On Fri, 2007-08-10 at 18:56 +0200, Danny Kukawka wrote:
> Hi,
> 
> this patch introduce new fdi-file <match> directives for strings. The new are:
>  - string_outof
>  - prefix_outof
>  - contains_outof
> 
> They all work like the normal directives (string, prefix, contains), but only 
> on string properties and match against a ';'-separated list (any other ideas 
> for a char as separator?) as in this examples:
> 
>   <match key="system.hardware.product" string_outof="foo;bar">
>   - matches if "system.hardware.product" is 'foo' or 'bar'
> 
>   <match key="system.hardware.product" prefix_outof="foo;bar">
>   - matches if "system.hardware.product" starts with 'foo' or 'bar'
> 
>   <match key="system.hardware.product" contains_outof="foo;bar">
>   - matches if "system.hardware.product" contains the (sub-)string 
>     'foo' or 'bar'

We need this IMO.

> This new match directives allow us to reduce the size (and number of 
> duplicated rules) of many fdi files in hal and hal-info. See as example a new 
> version of fdi/information/10freedesktop/30-keymap-acer.fdi which I reduced 
> from 28532 to 8123 bytes (which is ~ -72 %).

Well, in the binary cache this is likely much smaller, but significant
all the same.

I'm not sure string_outof is obvious what it does tho.

string_multiple_matches?
prefix_multiple
prefix_array
prefix_match_array?

Richard.