[antlr-interest] Why don't parsers support character ranges?

[Robin Hamilton-Pennell]

Jim,

> You wrote:
> 4) Don't invent languages that are indent sensitive and don't use terminals to surround blocks [that's isn;t a real rule ;-)]

Just out of curiosity: if one's invented language isn't
indent-sensitive, and one doesn't use terminals to surround blocks,
how does one delineate blocks?

I know you intended this as a joke (and I agree completely on
indentation-sensitivity), but I'm just confused... please enlighten
me!

Thanks,
Robin