linux - Lex file unrecognized rule -


i trying run following program, , getting unrecognized rule: 37. not sure why giving me error in line 37.

command: $ lex mycsv2html.l 

%{                      //definition section   #include <stdin.h>                          #include <stdout.h> int c; extern int yylval; %}   %%                      // rule section " "       ; [\n]     {             c = yytext[0];             yylval = c - '\n';             return(br);           } ["]     {             c = yytext[0];             yylval = c - '';             return('');           } [<]     {             c = yytext[0];             yylval = c - '';             return('&lt');           }  [>]     {             c = yytext[0];             yylval = c - '';             return('&gt');           }  int main(void)                            //c code section {     /* call lexer, quit. */     yylex();     return 0; }

you should add %% between second part (rules) , third part(c codes).

..... [>]     {         c = yytext[0];         yylval = c - '';         return('&gt');       }  %% // here  int main(void)                            //c code section .....

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