[ragel-users] 0x0E..0xFF produces "lower end of range is greater then upper end"

Jan Kundrát jkt at flaska.net
Mon Oct 21 15:21:40 UTC 2013

On Monday, 21 October 2013 17:17:57 CEST, Iñaki Baz Castillo wrote:
> The following modification in the grammar fixes it:
>   ( 0x01..0x09 | 0x0B..0x0C | 0x0E..0x7F | 0x80..0xFF)+;
> but I don't understand wht it is required to split the last range into
> two ranges.

Seems like ragel treats this as a signed char, i.e. -128..127. Your code 
appears to be a nice and portable workaround.

I've hit a "similar" problem recently -- the issue was a signedness of a 
char, but in a different context. I don't think it applies, but the patch 
is at [1] anyway.



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