Look ahead in Lexer causing error

[Gurunathan_Murthy]

Hi,

I encountered a few problem while pattern mathcing in lexer:

A few declarations such as

Declare         [D][E][C][L]
String          \"[^"\n]*\"
DQString                String+     ---  Means many strings, required only to
                                   determine quoted strings.

were used and to match a pattern of "abc""def""abc" [A string that
allows double quotes to be used as a char within a string only when
prefixed with another double quote]

Rule:
{Declare}/{DQString}
{
        return DQSTRING;
}

Error Encountered :flex svt.l
"svt.l", line 21: EOF encountered inside an action
"svt.l", line 21: unrecognized rule
"svt.l", line 21: fatal parse error

where 21 is last line of the .l file

PLs help me out in solving this.

Thanks,
G S Murthy
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