How to recognize string in Lex file -

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hi appropriate recognize string in lex.

i have tried 

enter code here  import java_cup.runtime.*;  %% %cup %line num = [0-9] id = [a-za-z] pun= [:=;#@$^~] whitespace = [ \t\r\n\f] sdquo = [\"] %%   ({sdquo}+) ({id}|{num})* ({sdquo}+) { return new symbol(sym.str, new string(yytext()));}

but macro fail recognized. error message kept getting is: processing first section -- user code. processing second section -- jlex declarations. processing third section -- lexical rules. creating nfa machine representation. error: parse error @ line 39. description: missing brace @ start of lexical action. parse error.

loose = signs in definitions of num etc. , don't place them between %%. instead place last rule between %%.


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