ext/nokogiri/xml_encoding_handler.c
#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);
}