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