Re: Flex help anyone ?

[wim delvaux]

On Tuesday 13 January 2004 16:56, Mike Aubury wrote:
> 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 ?


\"(\"\"|[^"])*\"

>
>
>
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