On Tue, 2002-02-12 at 21:43, Jason Boehle wrote:
> If I select the expression "b1 || b2", hit Ctrl+Alt+T, it works as expected.
> If I select the expression "b1 || b2 || b3", hit Ctrl+Alt+T, it works as
> expected. If I select the expression "b2 || b3", hit Ctrl+Alt+T, I get no
> pop-up menu. Why?
The parse tree for the expression is:
or
/ \
/ \
or b3
/ \
/ \
b1 b2
"b1 || b2 || b3" corresponds to a node in the tree. "b1 || b2" is also
a node in the tree. But "b2 || b3" corresponds to two separate branches
in the tree. It is not a valid subexpression.
At least I imagine this is the reason, together with the fact that IDEA
wants to present context-dependent alternatives depending on the
expression or statement you're surrounding with something. For a less
intelligent editor that viewed "surround with" simply as "add some text
before and after whatever happens to be selected" this would not be a
problem...
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