Crash in Nav Mode

[danghoaiphuc]

We got MathCAT crashed in navigation mode when executing the movestart and then movenext command in the expression below.
MathML code converted by the math editor:
<math><mrow><msup><mo stretchy="false">&#xA0;</mo><mn>2</mn></msup><mi>A</mi></mrow></math>

Its LaTeX code:
{}^2A

[NSoiffer]

Can you tell me the exact commands you used to cause MathCAT go crash?

[danghoaiphuc]

Yes, here's the code command that mathCAT get crashed:

SetPreference('NavMode', 'Character')
mathml='{}^2A'
SetMathML(mathml)
DoNavigateCommand('MoveStart')
DoNavigateCommand('MoveNext')

It crashes right after "MoveNext" command.
Happy Thanksgiving!

[NSoiffer]

Thanks. I can replicate it now.

[NSoiffer]

With the fix I have, "MoveStart" will say "cap A" and "MoveNext" will say "in pre-superscript; 2".

@danghoaiphuc: This makes some sense in that the pre-superscript modifies the base, but that's not the order in which they are displayed. In #315, you seem to want the display order to take precedence. Would you prefer the prescripts be navigated to before the base?