When trying to compile emulators/wine (pkgsrc), flex chokes with
negative range in character class
because (BTW, the line reported is incorrect; it reports the line _after_ the
error) the regex are like this:
NCNameStartChar ([A-Za-z_]|[\xc0-\xd6\xd8-\xf6\xf8-\xff])
Is the problem with signed chars (but in this case, the ranges are
valid since they increase also with two-complement coding).
Or is the problem with the \x## notation that is not accepted by the
regex library, translating in fact \xd8-\xf6 in 8-6 (but in this case,
discarding \x as unknow, OK; but why discard 'd' or 'f' next...).
How are handled negative characters in a range when char is signed?
Side note: is there a way to obtain from flex a better description of
the problem?
Thanks in advance for any tip or reference,
--
Thierry Laronde <tlaronde +AT+ kergis +dot+ com>
http://www.kergis.com/
http://kertex.kergis.com/
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