/**
* Checks that an element has non-empty values for required attributes.
* Increments the error count for each missing attribute.
*
* @param context the parsing context
* @param elem the element being checked
* @param atts the attribute list for the element
* @param req_atts the required attributes (NULL terminated list, or NULL)
* @return whether the required attributes are present
*/
static int check_req_attributes(ploader_context_t *plcontext,
const XML_Char *elem, const XML_Char * const *atts,
const XML_Char * const *req_atts) {
const XML_Char * const *a;
int error = 0;
// Check that required attributes have non-empty values
for (a = req_atts; a != NULL && *a != NULL; a++) {
const XML_Char * const *av;
if ((av = contains_str(atts, *a, 2)) != NULL) {
if ((*(av + 1))[0] == '\0') {
descriptor_errorf(plcontext, 0,
_("required attribute %s for element %s has an empty value"),
*a, elem);
error = 1;
}
} else {
descriptor_errorf(plcontext, 0,
_("required attribute %s missing for element %s"),
*a, elem);
error = 1;
}
}
return !error;
}
int compare_answer(char * evaled, char * answer){
int ret = 1;
char temp_evaled[strlen(evaled)];
strcpy(temp_evaled, evaled);
char * expr = strtok (temp_evaled,"\n");
//test if all of the expression are in the answer
while (expr != NULL){
ret*=contains_str(answer, expr);
expr = strtok (NULL,"\n");
}
//also test that all of the answers are in the expression
char * ans_expr = strtok (answer,"\n");
while (ans_expr != NULL){
ret*=contains_str(evaled, ans_expr);
ans_expr = strtok (NULL,"\n");
}
return ret;
}
/**
* Checks that an element has non-empty values for required attributes and
* warns if there are unknown attributes. Increments the error count for
* each missing required attribute.
*
* @param context the parsing context
* @param elem the element being checked
* @param atts the attribute list for the element
* @param req_atts the required attributes (NULL terminated list, or NULL)
* @param opt_atts the optional attributes (NULL terminated list, or NULL)
* @return whether the required attributes are present
*/
static int check_attributes(ploader_context_t *plcontext,
const XML_Char *elem, const XML_Char * const *atts,
const XML_Char * const *req_atts, const XML_Char * const *opt_atts) {
int error = 0;
// Check required attributes
error = !check_req_attributes(plcontext, elem, atts, req_atts);
// Warn if there are unknown attributes
for (; *atts != NULL; atts += 2) {
if (contains_str(req_atts, *atts, 1) == NULL
&& contains_str(opt_atts, *atts, 1) == NULL) {
descriptor_errorf(plcontext, 1,
_("ignoring unknown attribute %s for element %s"),
*atts, elem);
}
}
return !error;
}
