Parinfer will ignore the fact that you have unchecked the Editor > General > Smart Keys > "Maintain selection when surrounding with braces" setting. This means that when you select something and press the open bracket to surround it, if you immediately start typing then you overwrite it rather than typing before it.
So if I have the 4 selected in this form:
Then I press "(":
The 4 is still selected, so if I type "-" it overwrites the 4 and I get this:
What I wanted was to type before the 4 like this:
Parinfer will ignore the fact that you have unchecked the Editor > General > Smart Keys > "Maintain selection when surrounding with braces" setting. This means that when you select something and press the open bracket to surround it, if you immediately start typing then you overwrite it rather than typing before it.
So if I have the 4 selected in this form:
Then I press "(":
The 4 is still selected, so if I type "-" it overwrites the 4 and I get this:
What I wanted was to type before the 4 like this: