gecko-dev/dom/xslt/base/txExpandedName.cpp

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1.4 KiB
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* 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 "txExpandedName.h"
#include "nsString.h"
#include "nsReadableUtils.h"
#include "txStringUtils.h"
#include "txNamespaceMap.h"
#include "txXMLUtils.h"
nsresult
txExpandedName::init(const nsAString& aQName, txNamespaceMap* aResolver,
bool aUseDefault)
{
const nsAFlatString& qName = PromiseFlatString(aQName);
const char16_t* colon;
bool valid = XMLUtils::isValidQName(qName, &colon);
if (!valid) {
return NS_ERROR_FAILURE;
}
if (colon) {
nsCOMPtr<nsIAtom> prefix = do_GetAtom(Substring(qName.get(), colon));
int32_t namespaceID = aResolver->lookupNamespace(prefix);
if (namespaceID == kNameSpaceID_Unknown)
return NS_ERROR_FAILURE;
mNamespaceID = namespaceID;
const char16_t *end;
qName.EndReading(end);
mLocalName = do_GetAtom(Substring(colon + 1, end));
}
else {
mNamespaceID = aUseDefault ? aResolver->lookupNamespace(nullptr) :
kNameSpaceID_None;
mLocalName = do_GetAtom(aQName);
}
return NS_OK;
}