static int isWhitespaceRun(DFNode *run)
{
for (DFNode *child = run->first; child != NULL; child = child->next) {
switch (child->tag) {
case WORD_RPR:
break;
case WORD_T: {
char *str = DFNodeTextToString(child);
int isWhitespace = DFStringIsWhitespace(str);
free(str);
if (!isWhitespace)
return 0;
break;
}
default:
return 0;
}
}
return 1;
}
void DFRemoveWhitespaceNodes(DFNode *node)
{
DFNode *next;
for (DFNode *child = node->first; child != NULL; child = next) {
next = child->next;
switch (child->tag) {
case DOM_TEXT:
case DOM_CDATA: {
if (DFStringIsWhitespace(child->value))
DFRemoveNode(child);
break;
}
case DOM_COMMENT:
DFRemoveNode(child);
break;
default:
DFRemoveWhitespaceNodes(child);
break;
}
}
}
int DFIsWhitespaceNode(DFNode *node)
{
return ((node->tag == DOM_TEXT) && DFStringIsWhitespace(node->value));
}