Someone

clamav:
    CLAMAV EQSIGN clamav_params
    ;
file    : /* empty */
    |  file command SEMICOLON { }
    ;
command : clamav
    ;

clamav:
    CLAMAV EQSIGN clamav_params
    ;

clamav_params:
    clamav_server
    | clamav_server COMMA clamav_params
    ;

clamav_server:
    SOCKCRED    {
        if (!add_clamav_server (cfg, $1)) {
            yyerror ("yyparse: add_clamav_server");
            YYERROR;
        }
        free ($1);
    }
    ;

yydebug: state 24, reducing by rule 2 (file : file command SEMICOLON)
yydebug: after reduction, shifting from state 0 to state 1
yydebug: state 1, reading 279 (CLAMAV)
yydebug: state 1, shifting to state 5
yydebug: state 5, reading 289 (EQSIGN)
yydebug: state 5, shifting to state 20
yydebug: state 20, reading 291 (SOCKCRED)
yydebug: state 20, shifting to state 34
yydebug: state 34, reducing by rule 32 (clamav_server : SOCKCRED)
yydebug: after reduction, shifting from state 20 to state 36
yydebug: state 36, reading 288 (COMMA)
yydebug: state 36, shifting to state 47
yydebug: state 47, reading 291 (SOCKCRED)
yydebug: state 47, shifting to state 34
yydebug: state 34, reducing by rule 32 (clamav_server : SOCKCRED)
yydebug: error recovery discarding state 34
yydebug: error recovery discarding state 47
yydebug: error recovery discarding state 36
yydebug: error recovery discarding state 20
yydebug: error recovery discarding state 5
yydebug: error recovery discarding state 1