xmlReplaceNode(node, frag);
frag->children = node->children;
frag->last = node->last;
+
+ node->children = node->last = NULL;
+ xmlFreeNode(node);
}
}
+// Does A begin with B?
+bool begins_with(const string &a, const string &b)
+{
+ return (a.compare(0, b.size(), b) == 0);
+}
+
} // namespace
Directive::~Directive() {}
+
+string Directive::get_contents() { return ""; }
Replace::Replace(const string &str)
: str(str) {}
}
}
+string Replace::get_contents() { return str; }
+
Clone::Clone(const vector<Directive *> &subdirectives)
: subdirectives(subdirectives) {}
-
+
+Clone::Clone(const vector<Substitute *> &subdirectives_subs)
+{
+ for (auto it : subdirectives_subs) {
+ subdirectives.push_back(static_cast<Directive *>(it));
+ }
+}
+
Clone::Clone(initializer_list<Directive *> subdirectives)
: subdirectives(subdirectives) {}
xmlNode *new_node;
xmlDOMWrapCloneNode(NULL, node->doc, node, &new_node, node->doc, NULL, 1, 0);
it->process(new_node, clean);
- for (xmlNode *child = new_node->children; child != NULL; child = child->next) {
+ while (new_node->children != NULL) {
+ xmlNode *child = new_node->children;
+ xmlUnlinkNode(child);
new_nodes.push_back(child);
}
+ xmlFreeNode(new_node);
}
xmlFreeNodeList(node->children);
clean_node(node);
}
}
+
+Alternate::Alternate(const string &attribute,
+ const vector<Substitute *> &subdirectives_subs,
+ const vector<string> &alternatives)
+ : Clone(subdirectives_subs)
+{
+ for (unsigned ix = 0; ix < subdirectives_subs.size(); ++ix) {
+ string value = alternatives[ix % alternatives.size()];
+ subdirectives_subs[ix]->substitution_map.insert(make_pair(
+ attribute,
+ new Replace { value }));
+ }
+}
Substitute::Substitute(const unordered_map<string, Directive*> &substitution_map)
: substitution_map(substitution_map) {}
void Substitute::process(xmlNode *node, bool clean)
{
- for (xmlNode *child = node->children; child != NULL; child = child->next) {
+ xmlNode *next_child;
+ for (xmlNode *child = node->children; child != NULL; child = next_child) {
+ next_child = child->next;
bool processed = false;
if (child->type == XML_ELEMENT_NODE) {
string id;
xmlAttr *id_attr = NULL;
for (xmlAttr *attr = child->properties; attr != NULL; attr = attr->next) {
- if (strcmp(reinterpret_cast<const char *>(attr->ns->href), "http://template.sesse.net/") == 0 &&
+ if (attr->ns != NULL &&
+ strcmp(reinterpret_cast<const char *>(attr->ns->href), "http://template.sesse.net/") == 0 &&
strcmp(reinterpret_cast<const char *>(attr->name), "id") == 0) {
- id = reinterpret_cast<const char *>(xmlNodeGetContent(attr->children));
+ xmlChar *id_buf = xmlNodeGetContent(attr->children);
+ id = reinterpret_cast<const char *>(id_buf);
+ xmlFree(id_buf);
id_attr = attr;
}
}
// Check all substitutions to see if we found anything appropriate.
for (auto it : substitution_map) {
- if (it.first == reinterpret_cast<const char *>(child->name) ||
+ string tag = reinterpret_cast<const char *>(child->name);
+
+ // Attribute substitution.
+ if (begins_with(it.first, tag + "/")) {
+ const xmlChar *attr_key = reinterpret_cast<const xmlChar *>(
+ it.first.substr(tag.size() + 1).c_str());
+ const xmlChar *attr_value = reinterpret_cast<const xmlChar *>(
+ it.second->get_contents().c_str());
+ xmlSetProp(child, attr_key, attr_value);
+ } else if ((!id.empty() && begins_with(it.first, "#" + id + "/"))) {
+ const xmlChar *attr_key = reinterpret_cast<const xmlChar *>(
+ it.first.substr(tag.size() + 2).c_str());
+ const xmlChar *attr_value = reinterpret_cast<const xmlChar *>(
+ it.second->get_contents().c_str());
+ xmlSetProp(child, attr_key, attr_value);
+ }
+
+ if (processed) {
+ continue;
+ }
+
+ // Regular substitution.
+ if (it.first == tag ||
(!id.empty() && it.first == ("#" + id))) {
it.second->process(child, clean);
processed = true;
- break;
}
}
}
-
+
if (!processed) {
process(child, clean);
}