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bin/gems/nokogiri-1.18.3-x86_64-linux-gnu/ext/nokogiri/xml_encoding_handler.c

@@ -0,0 +1,112 @@
+#include <nokogiri.h>
+
+VALUE cNokogiriEncodingHandler;
+
+static void
+xml_encoding_handler_dealloc(void *data)
+{
+  /* make sure iconv handlers are cleaned up and freed */
+  xmlCharEncodingHandlerPtr c_handler = data;
+  xmlCharEncCloseFunc(c_handler);
+}
+
+static const rb_data_type_t xml_char_encoding_handler_type = {
+  .wrap_struct_name = "xmlCharEncodingHandler",
+  .function = {
+    .dfree = xml_encoding_handler_dealloc,
+  },
+  .flags = RUBY_TYPED_FREE_IMMEDIATELY | RUBY_TYPED_WB_PROTECTED,
+};
+
+
+/*
+ * call-seq: Nokogiri::EncodingHandler.[](name)
+ *
+ * Get the encoding handler for +name+
+ */
+static VALUE
+rb_xml_encoding_handler_s_get(VALUE klass, VALUE key)
+{
+  xmlCharEncodingHandlerPtr handler;
+
+  handler = xmlFindCharEncodingHandler(StringValueCStr(key));
+  if (handler) {
+    return TypedData_Wrap_Struct(klass, &xml_char_encoding_handler_type, handler);
+  }
+
+  return Qnil;
+}
+
+
+/*
+ * call-seq: Nokogiri::EncodingHandler.delete(name)
+ *
+ * Delete the encoding alias named +name+
+ */
+static VALUE
+rb_xml_encoding_handler_s_delete(VALUE klass, VALUE name)
+{
+  if (xmlDelEncodingAlias(StringValueCStr(name))) { return Qnil; }
+
+  return Qtrue;
+}
+
+
+/*
+ * call-seq: Nokogiri::EncodingHandler.alias(real_name, alias_name)
+ *
+ * Alias encoding handler with name +real_name+ to name +alias_name+
+ */
+static VALUE
+rb_xml_encoding_handler_s_alias(VALUE klass, VALUE from, VALUE to)
+{
+  xmlAddEncodingAlias(StringValueCStr(from), StringValueCStr(to));
+
+  return to;
+}
+
+
+/*
+ * call-seq: Nokogiri::EncodingHandler.clear_aliases!
+ *
+ * Remove all encoding aliases.
+ */
+static VALUE
+rb_xml_encoding_handler_s_clear_aliases(VALUE klass)
+{
+  xmlCleanupEncodingAliases();
+
+  return klass;
+}
+
+
+/*
+ * call-seq: name
+ *
+ * Get the name of this EncodingHandler
+ */
+static VALUE
+rb_xml_encoding_handler_name(VALUE self)
+{
+  xmlCharEncodingHandlerPtr handler;
+
+  TypedData_Get_Struct(self, xmlCharEncodingHandler, &xml_char_encoding_handler_type, handler);
+
+  return NOKOGIRI_STR_NEW2(handler->name);
+}
+
+
+void
+noko_init_xml_encoding_handler(void)
+{
+  cNokogiriEncodingHandler = rb_define_class_under(mNokogiri, "EncodingHandler", rb_cObject);
+
+  rb_undef_alloc_func(cNokogiriEncodingHandler);
+
+  rb_define_singleton_method(cNokogiriEncodingHandler, "[]", rb_xml_encoding_handler_s_get, 1);
+  rb_define_singleton_method(cNokogiriEncodingHandler, "delete", rb_xml_encoding_handler_s_delete, 1);
+  rb_define_singleton_method(cNokogiriEncodingHandler, "alias", rb_xml_encoding_handler_s_alias, 2);
+  rb_define_singleton_method(cNokogiriEncodingHandler, "clear_aliases!", rb_xml_encoding_handler_s_clear_aliases, 0);
+
+  rb_define_method(cNokogiriEncodingHandler, "name", rb_xml_encoding_handler_name, 0);
+}