String/ForceMatch.c
String* initString() {
    String* s = (String*)malloc(sizeof(String));
    s->data = NULL;
    s->len = 0;
    return s;
}
/**
 * init string
 * @return the pointer of string
 */
init string
@return the pointer of string
init string @return the pointer of string
String* initString() {
    String* s = (String*)malloc(sizeof(String));
    s->data = NULL;
    s->len = 0;
    return s;
}
String * initString ( ) { String * s = ( String * ) malloc ( sizeof ( String ) ) ; s -> data = NULL ; s -> len = 0 ; return s ; }
init string
 @return the pointer of string
init string @return the pointer of string