RE: Flex help anyone ?

[Ning Cao]

Hi, 

"Hello " will be matched by the first rule
"World" will be matched by the first rule
and " would be ok" will be also matched by the first rule.

this the reason why you got three strings.


-----Original Message-----
From: address@hidden [mailto:address@hidden Behalf Of Mike Aubury (by way of 
Hans Aberg)
Sent: Thursday, January 15, 2004 1:54 AM
To: Flex Help
Subject: Flex help anyone ?


Yes - I know this is a bison list - but someone might know...


I've got to detect strings so I have matches for :

\"[^\"]+\"    {  return CHAR_VALUE;}
\"\" { return CHAR_VALUE;}




in my flex definition file (or similar at least)
(The first for a string, the second for an empty string)



In the language I'm trying to parse - its permissible to embed quotes within a
string if you double up..

so :

        "Hello ""World"" would be ok"

Obviously - I'm getting this back as three strings ("Hello " , "World"  &
"would be ok") which is messing up the parser...


Any ideas ?



_______________________________________________
address@hidden http://mail.gnu.org/mailman/listinfo/help-bison




_______________________________________________
Help-flex mailing list
address@hidden
http://mail.gnu.org/mailman/listinfo/help-flex