antlr-indent-style

antlr-indent-style is a variable defined in `antlr-mode.el'.
Its value is

"java"

Documentation:
If non-nil, cc-mode indentation style used for `antlr-mode'.
See `c-set-style' and for details, where the most interesting part in
`c-style-alist' is the value of `c-basic-offset'.

You can customize this variable.