inline void
remove_placeholders (ContainerT &replacement_list)
{
using namespace boost::wave;
// strip leading whitespace
if (replacement_list.size() > 0) {
typename ContainerT::iterator end = replacement_list.end();
typename ContainerT::iterator it = replacement_list.begin();
while (it != end) {
if (T_PLACEHOLDER == token_id(*it)) {
typename ContainerT::iterator next = it;
++next;
replacement_list.erase(it);
it = next;
}
else {
++it;
}
}
// remove all 'new' leading and trailing whitespace
trim_replacement_list(replacement_list);
}
}
inline void
trim_replacement_list (ContainerT &replacement_list)
{
using namespace boost::wave;
// strip leading whitespace
if (replacement_list.size() > 0) {
typename ContainerT::iterator end = replacement_list.end();
typename ContainerT::iterator it = replacement_list.begin();
while (it != end && IS_CATEGORY(*it, WhiteSpaceTokenType)) {
if (T_PLACEHOLDER != token_id(*it)) {
typename ContainerT::iterator next = it;
++next;
replacement_list.erase(it);
it = next;
}
else {
++it;
}
}
}
// strip trailing whitespace
if (replacement_list.size() > 0) {
typename ContainerT::reverse_iterator rend = replacement_list.rend();
typename ContainerT::reverse_iterator rit = replacement_list.rbegin();
while (rit != rend && IS_CATEGORY(*rit, WhiteSpaceTokenType))
++rit;
typename ContainerT::iterator end = replacement_list.end();
typename ContainerT::iterator it = rit.base();
while (it != end && IS_CATEGORY(*it, WhiteSpaceTokenType)) {
if (T_PLACEHOLDER != token_id(*it)) {
typename ContainerT::iterator next = it;
++next;
replacement_list.erase(it);
it = next;
}
else {
++it;
}
}
}
}
void eraseElementsIf(ContainerT& container, const PredicateT& predicate)
{
auto iter = container.begin();
while(iter != container.end()) {
if(predicate(*iter) == true) {
iter = container.erase(iter);
} else {
++iter;
}
}
}
void erase_if(ContainerT& items, const PredicateT& predicate) {
for(auto it = items.begin(); it != items.end();) {
if(predicate(*it)) it = items.erase(it);
else ++it;
}
};