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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 "nsEntityConverter.h"
#include "nsLiteralString.h"
#include "nsString.h"
#include "mozilla/Services.h"
#include "nsServiceManagerUtils.h"
#include "nsCRT.h"
//
// implementation methods
//
nsEntityConverter::nsEntityConverter() { }
nsEntityConverter::~nsEntityConverter() { }
nsIStringBundle*
nsEntityConverter:: GetVersionBundleInstance(uint32_t versionNumber)
{
switch(versionNumber){
case nsIEntityConverter::html40Latin1:
if (!mHTML40Latin1Bundle) {
mHTML40Latin1Bundle = LoadEntityBundle(kHTML40LATIN1);
MOZ_ASSERT(mHTML40Latin1Bundle, "LoadEntityBundle failed");
}
return mHTML40Latin1Bundle;
case nsIEntityConverter::html40Symbols:
if (!mHTML40SymbolsBundle) {
mHTML40SymbolsBundle = LoadEntityBundle(kHTML40SYMBOLS);
MOZ_ASSERT(mHTML40SymbolsBundle, "LoadEntityBundle failed");
}
return mHTML40SymbolsBundle;
case nsIEntityConverter::html40Special:
if (!mHTML40SpecialBundle) {
mHTML40SpecialBundle = LoadEntityBundle(kHTML40SPECIAL);
MOZ_ASSERT(mHTML40SpecialBundle, "LoadEntityBundle failed");
}
return mHTML40SpecialBundle;
case nsIEntityConverter::mathml20:
if (!mMathML20Bundle) {
mMathML20Bundle = LoadEntityBundle(kMATHML20);
MOZ_ASSERT(mMathML20Bundle, "LoadEntityBundle failed");
}
return mMathML20Bundle;
default:
return nullptr;
}
}
already_AddRefed<nsIStringBundle>
nsEntityConverter:: LoadEntityBundle(const char *fileName)
{
NS_ENSURE_TRUE(fileName, nullptr);
nsAutoCString url("resource://gre/res/entityTables/");
nsresult rv;
nsCOMPtr<nsIStringBundleService> bundleService =
do_GetService(NS_STRINGBUNDLE_CONTRACTID, &rv);
NS_ENSURE_SUCCESS(rv, nullptr);
url.Append(fileName);
nsCOMPtr<nsIStringBundle> bundle;
rv = bundleService->CreateBundle(url.get(), getter_AddRefs(bundle));
NS_ENSURE_SUCCESS(rv, nullptr);
return bundle.forget();
}
//
// nsISupports methods
//
NS_IMPL_ISUPPORTS(nsEntityConverter,nsIEntityConverter)
//
// nsIEntityConverter
//
NS_IMETHODIMP
nsEntityConverter::ConvertToEntity(char16_t character, uint32_t entityVersion, char **_retval)
{
return ConvertUTF32ToEntity((uint32_t)character, entityVersion, _retval);
}
NS_IMETHODIMP
nsEntityConverter::ConvertUTF32ToEntity(uint32_t character, uint32_t entityVersion, char **_retval)
{
NS_ASSERTION(_retval, "null ptr- _retval");
if (nullptr == _retval) {
return NS_ERROR_NULL_POINTER;
}
*_retval = nullptr;
for (uint32_t mask = 1, mask2 = 0xFFFFFFFFL; (0!=(entityVersion & mask2)); mask<<=1, mask2<<=1) {
if (0 == (entityVersion & mask)) {
continue;
}
nsIStringBundle* entities = GetVersionBundleInstance(entityVersion & mask);
NS_ASSERTION(entities, "Cannot get the entity");
if (!entities) {
continue;
}
nsAutoString key(NS_LITERAL_STRING("entity."));
key.AppendInt(character,10);
nsXPIDLString value;
nsresult rv = entities->GetStringFromName(key.get(), getter_Copies(value));
if (NS_SUCCEEDED(rv)) {
*_retval = ToNewCString(value);
return NS_OK;
}
}
return NS_ERROR_ILLEGAL_VALUE;
}
NS_IMETHODIMP
nsEntityConverter::ConvertToEntities(const char16_t *inString, uint32_t entityVersion, char16_t **_retval)
{
NS_ENSURE_ARG_POINTER(inString);
NS_ENSURE_ARG_POINTER(_retval);
*_retval = nullptr;
nsString outString;
// per character look for the entity
uint32_t len = NS_strlen(inString);
for (uint32_t i = 0; i < len; i++) {
nsAutoString key(NS_LITERAL_STRING("entity."));
if (NS_IS_HIGH_SURROGATE(inString[i]) && i + 2 < len && NS_IS_LOW_SURROGATE(inString[i + 1])) {
key.AppendInt(SURROGATE_TO_UCS4(inString[i], inString[i+1]), 10);
++i;
} else {
key.AppendInt(inString[i],10);
}
nsXPIDLString value;
const char16_t *entity = nullptr;
for (uint32_t mask = 1, mask2 = 0xFFFFFFFFL; (0!=(entityVersion & mask2)); mask<<=1, mask2<<=1) {
if (0 == (entityVersion & mask)) {
continue;
}
nsIStringBundle* entities = GetVersionBundleInstance(entityVersion & mask);
NS_ASSERTION(entities, "Cannot get the property file");
if (!entities) {
continue;
}
nsresult rv = entities->GetStringFromName(key.get(), getter_Copies(value));
if (NS_SUCCEEDED(rv)) {
entity = value.get();
break;
}
}
if (entity) {
outString.Append(entity);
} else {
outString.Append(&inString[i], 1);
}
}
*_retval = ToNewUnicode(outString);
return NS_OK;
}
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