[Conky-development] [PATCH] if_empty

[Erik S. <er...@di...>]

Hi there,

I added a variable called $if_empty that checks if the conky variable
that is passed as its argument is an empty string. It is useful to
display alternative texts for variables like $mpd_* that can expand to
an empty string.

Example usage:
${if_empty $mpd_smart}Nothing to play.$else$mpd_smart [$mpd_elapsed/$mpd_length]$endif

Due to updates in extract_variable_text_internal(), it is also possible
to nest variables in the ${...} format: ${if_empty ${exec ...}} ...

I hope you enjoy the patch.

Erik

-- 
Erik Scharwaechter
http://diozaka.org
GPG: 0x42B654AB