In DiffZilla, click on the blue ? by FileWildcards.
Help explains that it takes * ? and #.
"#", really?
I tested that, it doesn't work.
Given these files:
diff\d1\A1File.txt
diff\d1\A23File.txt
diff\d1\PlainFile.txt
diff\d2\A1File.txt
diff\d2\A23File.txt
diff\d2\PlainFile.txt
The pattern
A#?File.txt
finds no matches, but
A?File.txt
works as expected.
In DiffZilla, click on the blue ? by excludes, and get:
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SlickEdit Pro
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Help item 'wildcards::Ant-like exclusions examples' not found
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OK
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In other apps I've seen the "?" type symbol, but it is a hover only, and not a clickable.
Either works, but inconsistently sucks.