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#include "tag.hpp"
#include "utils.hpp"
#include <stdlib.h>
#include <string.h>
XiftTag::XiftTag(): name(0), len(0), size(0)
{}
XiftTag::~XiftTag()
{
if (name) free(name);
}
bool XiftTag::MatchesForm(const XiftTag &form) const
{
return !strcmp(name, form.name) && XiftAttributes::MatchesForm(form);
}
XiftTags::XiftTags(): stack(0)
{}
XiftTags::~XiftTags()
{
while (stack) {
Stack *old = stack;
stack = stack->next;
delete old->item;
delete old;
}
}
XiftTag &XiftTags::Tag(const char *name)
{
Stack *current = stack;
while (current) {
if (!strcmp(current->item->name, name)) {
return *current->item;
}
current = current->next;
}
XiftTag &res = New();
res.len = strlen(name);
res.name = xift_str_create_copy(name, name + res.len);
res.size = res.len + 1;
return res;
}
void XiftTags::Remove(const char *name)
{
Stack **current = &stack;
while (*current) {
if (!strcmp((*current)->item->name, name)) {
Stack *old = *current;
*current = (*current)->next;
delete old->item;
delete old;
return;
}
current = &(*current)->next;
}
}
XiftTag *XiftTags::Top()
{
if (stack) {
return stack->item;
} else {
return 0;
}
}
void XiftTags::Pop()
{
if (stack) {
Stack *old = stack;
stack = stack->next;
delete old->item;
delete old;
}
}
XiftTag *XiftTags::PopToBeDeleted()
{
XiftTag *res = 0;
if (stack) {
Stack *old = stack;
res = stack->item;
stack = stack->next;
delete old;
}
return res;
}
XiftTag &XiftTags::New()
{
Stack *old = stack;
stack = new Stack;
stack->item = new XiftTag;
stack->next = old;
return *stack->item;
}
bool XiftTags::ContainsMatchedForm(const XiftTag & tag) const
{
Stack *current = stack;
while (current) {
if (tag.MatchesForm(*current->item)) {
return true;
}
current = current->next;
}
return false;
}
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