[KPhotoAlbum] Command line filtering

Johannes Zarl-Zierl johannes at zarl-zierl.at
Sun Feb 24 20:57:01 GMT 2019

Hi Robert,

I have to say, I really like the whole idea of kpa-filter. I still have some 
trouble testing it, though. Maybe some of my problems are bugs, probably I'm 
just using it wrong:

1. Calling kpa-filter without arguments loops indefinitely
At least, it seems like this - I used Ctrl-C after a few minutes. I'm not sure 
what the intended outcome would be. I had expected either a listing of all 
files in the index.xml or just the help message.

1a: My naive try to get a file listing did result in the same infinite loop:
$ contrib/kpa-filter '($yearFrom > 1900)'

2. How do I use the "--db" option?
I tried the following command in the kphotoalbum source directory:
$ kpa-filter --db "$PWD/demo/index.xml"
Could not create file parser context for file "1": No such file or directory 
at contrib/kpa-filter line 494.

3. The "--count" option does seem to do nothing in the following call:
$ kpa-filter -c -l cat:Keywords


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