I'm afraid I don't see the use case for such a feature, in source code formatting blank lines often are important for readability. So, this probably won't be added in Geany core, maybe a plugin.
However, note that using the Custom Command feature you can quite easily implement the feature using grep:
I'm afraid I don't see the use case for such a feature, in source code formatting blank lines often are important for readability. So, this probably won't be added in Geany core, maybe a plugin.
However, note that using the Custom Command feature you can quite easily implement the feature using grep:
grep -v '^[ \t]*$'