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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsString.h"
#include "nsISupports.h"
#include "nsILocale.h"
#include "nsLocale.h"
#include "nsMemory.h"
#include "nsCRT.h"
#define LOCALE_HASH_SIZE 0xFF
/* nsILocale */
NS_IMPL_ISUPPORTS(nsLocale, nsILocale)
nsLocale::nsLocale(void)
: fHashtable(nullptr), fCategoryCount(0)
{
fHashtable = PL_NewHashTable(LOCALE_HASH_SIZE,&nsLocale::Hash_HashFunction,
&nsLocale::Hash_CompareNSString,
&nsLocale::Hash_CompareNSString,
nullptr, nullptr);
NS_ASSERTION(fHashtable, "nsLocale: failed to allocate PR_Hashtable");
}
nsLocale::~nsLocale(void)
{
// enumerate all the entries with a delete function to
// safely delete all the keys and values
PL_HashTableEnumerateEntries(fHashtable, &nsLocale::Hash_EnumerateDelete,
nullptr);
PL_HashTableDestroy(fHashtable);
}
NS_IMETHODIMP
nsLocale::GetCategory(const nsAString& category, nsAString& result)
{
const char16_t *value = (const char16_t*)
PL_HashTableLookup(fHashtable, PromiseFlatString(category).get());
if (value)
{
result.Assign(value);
return NS_OK;
}
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsLocale::AddCategory(const nsAString &category, const nsAString &value)
{
char16_t* newKey = ToNewUnicode(category);
if (!newKey)
return NS_ERROR_OUT_OF_MEMORY;
char16_t* newValue = ToNewUnicode(value);
if (!newValue) {
free(newKey);
return NS_ERROR_OUT_OF_MEMORY;
}
if (!PL_HashTableAdd(fHashtable, newKey, newValue)) {
free(newKey);
free(newValue);
return NS_ERROR_OUT_OF_MEMORY;
}
return NS_OK;
}
PLHashNumber
nsLocale::Hash_HashFunction(const void* key)
{
const char16_t* ptr = (const char16_t *) key;
PLHashNumber hash;
hash = (PLHashNumber)0;
while (*ptr)
hash += (PLHashNumber) *ptr++;
return hash;
}
int
nsLocale::Hash_CompareNSString(const void* s1, const void* s2)
{
return !nsCRT::strcmp((const char16_t *) s1, (const char16_t *) s2);
}
int
nsLocale::Hash_EnumerateDelete(PLHashEntry *he, int hashIndex, void *arg)
{
// delete an entry
free((char16_t *)he->key);
free((char16_t *)he->value);
return (HT_ENUMERATE_NEXT | HT_ENUMERATE_REMOVE);
}
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