Specifically need RegEx-aware batch renamer for directories
Clicking on files in a directory comparison to comprare them opens NEW instance
This is another good example of confusion. Why did it treat the final additional YScale line any differently than the previous several? WinMerge reacted to it as if it was somehow different than the others that it interpreted correctly (as simple line insertions), and the result is anything but simple. This is at the very end of the file, BTW, so there is nothing else past this point.
SemanticMerge's annual subscription cost is beyond what I can budget, but using your suggestions as breadcrumbs I found other possibilities such as comby. That and Difftastic and other things I've found so far have limitations - like being Linux-based - that make them unsuitable for my purpose, but I might find one that is.
Why isn't detection of those syncronization points automatic? In the example screenshot, it was the addition of the comment to the YScale line that caused WinMerge to go berzerk on that section and (apparently) begin to confuse one instance of Preset: GrassDense with a later one, ignore the existence of the more proximal one, and then mistakenly claim that all the intervening lines are new and added, when all that was added was the comment. Its behavior doesn't make as much sense to me as a user...
WinMerge needs to be aware of syntaxes
Here's another example of WinMerge getting needlessly confused. It shouldn't even need to be syntax-aware to interpret this correctly, but it doesn't. I have had the Enable Moved Block Detection option disabled since prior to beginning this ticket.
If that is the reason why, then I should begin seeing an absence of that behavior: I incidentally disabled the moved block detection shortly before I posted. I wasn't suspicious that it was the cause of this behavior specifically, mind you, but I did see that it was having undesirable effects on these file types. I will try to remember to return and confirm or rule out this suspicion. I will probably next need to compare and edit these file in a month or two.