/**
* Check whether a class with a certain name exists
* @param classname
* @param len
* @param autoload
* @return bool
*/
bool class_exists(const char *classname, size_t len, bool autoload)
{
// we need the tsrm_ls variable
TSRMLS_FETCH();
// we're going to load a class-entry
zend_class_entry **ce;
// should we autoload the class?
if (autoload)
{
// no auto-load
if (SUCCESS != zend_lookup_class(classname, len, &ce TSRMLS_CC)) return false;
// the found "class" could also be an interface or trait, which we do no want
return ((*ce)->ce_flags & (ZEND_ACC_INTERFACE | (ZEND_ACC_TRAIT - ZEND_ACC_EXPLICIT_ABSTRACT_CLASS))) == 0;
}
else
{
// starting slashes can be ignored
if (len > 0 && classname[0] == '\\') { classname++; len--; }
// all classes are in lowercase in the hash, so we make
// a temporary buffer for storing the lowercase class name
// (is this smart? memory allocation is expensive!)
std::unique_ptr<char[]> lc_name(new char[len + 1]);
// copy the name to lowercase, but ignore the starting slash (if there is one)
zend_str_tolower_copy(lc_name.get(), classname, len);
// see if there is a class with this name
if (SUCCESS != zend_hash_find(EG(class_table), lc_name.get(), len + 1, (void **) &ce)) return false;
// the found "class" could also be an interface or trait, which we do no want
return !(((*ce)->ce_flags & (ZEND_ACC_INTERFACE | ZEND_ACC_TRAIT)) > ZEND_ACC_EXPLICIT_ABSTRACT_CLASS);
}
}
/* wstring getAcceptLangFromLocale (in wstring aLocale); */
NS_IMETHODIMP
nsAcceptLang::GetAcceptLangFromLocale(const PRUnichar *aLocale, PRUnichar **_retval)
{
nsDependentString lc_name(aLocale);
if (lc_name.Length() <=0) {
#ifdef DEBUG
printf("nsAcceptLang::GetAcceptLangFromLocale: aLocale is empty!");
#endif
// TODO: don't return; instead, use system locale: lc_name=...
return NS_ERROR_FAILURE;
}
nsresult res;
nsCOMPtr<nsIStringBundleService> sBundleService =
do_GetService(kStringBundleServiceCID, &res);
if (NS_FAILED(res) || (nsnull == sBundleService)) {
return NS_ERROR_FAILURE;
}
nsCOMPtr<nsIStringBundle> bundle;
#if 1
res = sBundleService->CreateBundle("resource://gre/res/language.properties",
getter_AddRefs(bundle));
#else
res = sBundleService->CreateBundle("chrome://global/locale/languageNames.properties",
getter_AddRefs(bundle));
#endif
PRUnichar *ptrv = nsnull;
nsAutoString lc_tmp(aLocale);
NS_NAMED_LITERAL_STRING(sAccept, ".accept");
NS_NAMED_LITERAL_STRING(sTrue, "true");
ToLowerCase(lc_tmp);
lc_tmp.Append(sAccept);
if (NS_OK == (res = bundle->GetStringFromName(lc_tmp.get(), &ptrv))) {
if (sTrue.Equals(ptrv)) {
// valid name already
*_retval = ToNewUnicode(lc_name);
return res;
}
}
/* not in languageNames.properties; lang only?
*/
PRInt32 dash = lc_tmp.FindChar('-');
nsAutoString lang;
nsAutoString country;
if (dash > 0) {
/* lang-country
*/
PRInt32 count = 0;
count = lc_tmp.Left(lang, dash);
count = lc_tmp.Right(country, (lc_tmp.Length()-dash-1));
/* ja-JP -> ja*/
}
else {
/* ja ?? en-JP
en-JP ->ja (how about product locale or syste, locale ???)
ja-EN ->ja
*/
lang = lc_name;
}
// lang always in lower case; don't convert
*_retval = ToNewUnicode(lang);
lang.Append(sAccept);
if (NS_OK == (res = bundle->GetStringFromName(lang.get(), &ptrv))) {
if (sTrue.Equals(ptrv)) {
/* lang is accepted */
return res;
}
}
/* unsupported lang */
*_retval = nsnull;
return NS_ERROR_FAILURE;
}
