[antlr-interest] Added ranges, escapes to [a-z] notation in lexer to honey badger
Terence Parr
parrt at cs.usfca.edu
Sun Jan 22 14:51:32 PST 2012
On Jan 22, 2012, at 12:38 PM, Gavin Lambert wrote:
> At 09:04 23/01/2012, Terence Parr wrote:
>> Hi. grab another update. augmented […] in lexer:
>> a-z is the inclusive range
> [...]
>> Inverted ranges give nothing
>
> Why's that? I would have thought that this:
> ~[a-c]
> ought to be the same as this:
> ~('a'|'b'|'c')
> …?
whoops. Sorry. I meant that [z-a] gives nothing.
~[a-c] should give the right thing :)
Ter
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