[antlr-interest] question about deleteChild function

[lu lu]

Hi, everyone.

I am doing a job about modifying AST of a SQL like language generated by
ANTLR3.2 parser. However, when I use deleteChild function of Tree class, I
can’t delete the first and last child of the tree, while the others can be
deleted successfully. I was confused by this problem, Could someone give me
any advice？



Thank you！



Best Regards,

Lu Lu

email:lulu760 at gmail.com <email%3Alulu760 at gmail.com>