Sorry, I considered 01 and 02 as the single question.
> 02. Tell me, if a user decides that he wants the affix
#3, what names would XY autogenerate?
In such a case the numbering will start with
#3. That is:
copy3.png
> And if somebody uses a dot inside the normal naming part before reaching the real extension?
Well, it will be an issue. But there is no single solution.
* Some files have "double extensions" and therefore they should be considered as double. For example, try to rename
aaa.tar.bz2. The selected area will be
aaa.tar. Is it good? No.
* On the other hand, some people may want to use dots inside file names.
The only way to resolve both these issues is to add the corresponding checkbox.
Edit: I realized just now that "extension after the first dot" sub-idea will not work with the main idea. Well, I could turn the corresponding checkbox off. Files with double extensions will be a kind of problem. I will simply deal with it.
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