Re: Suppress copying characters to yytext?

[Hans-Bernhard Broeker]

On Thu, 26 Apr 2001, Dave Dutcher wrote:

> Second, I would like to be able to have Flex use certain characters in a
> regular expression to match the expression but suppress copying the
> characters to yytext.  

You can do that with a start condition and trailing context rules. I.e.
roughly like this:

<INITIAL>\"     BEGIN(IN_STRING)

<IN_STRING>[^\n]*/\"    { 
                        /* yytext is the interior of the string, now */
                        BEGIN(INITIAL)
                        }

-- 
Hans-Bernhard Broeker (address@hidden)
Even if all the snow were burnt, ashes would remain.