Ok well after spending a whole day on this one simple problem I am now looking for help.... Yes this is a simple problem and although I found many samples, examples, tutorials, this continues to elude me. What exactly....

I have a bunch of layers that were chosen and populated to a list previously I need to do a filtering based on each layer name and remove the ones that do not match.

This is the code that populates the list, that seems to work. The simplest cond for that follows:


So now I have layerList and filter-regex, which is a string containing a simple regex. The default regex is ".". I want to remove all layers where the layer name does not match with filter-regex, the regex. Currently my code reads:


It seems to loop through as an empty list, no error reported. It does print the filter as "." (the default), but no layer names.

Thanks in advance. Yeah I have done a few dozen pyfu scripts, and many years ago I did a few scriptfu ones, but it is like learning all over again.

I should add, to answer the obvious questions...
this is a scriptfu.
because this is working on existing scriptfu, if I was writing from scratch I would certainly use pythonfu.

The line

gimp-layer-get-name returns a single element list and you need to extract the first element to be able to do the regex:


Kevin

I think you haven't got the structure of the "if" block correct:

Because filter-regex isn't null, it just does the first block, which only prints the value of filter-regex.

It would only execute the loop if filter-regex is null.

You could try it this way round:


Kevin

Kevin,

Thanks... um... strcmp will be zero if they equal (filter and "") which logic wants to mean no need to do a a filtering, but if not zero than the filtering should happen.

yeah I tired this, with filter-regex as "." (a dot, match any single character anywhere in the string):


which results in this, from the console:


Notice is never says it finished the code.

Here's some code that runs. I think you have an extra pair of parentheses that you didn't need.

Although I'm not sure why you are creating a list of layers that don't match the filter:

paynekj,

thank you so much for your efforts.

yeah, that is true (regarding the removing matches), that is reversed logic. I wasn't there yet so didn't notice.

Cheers