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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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 "PolicyTokenizer.h"
#include "mozilla/Logging.h"
static mozilla::LogModule* GetPolicyTokenizerLog() {
static mozilla::LazyLogModule gPolicyTokenizerPRLog("PolicyTokenizer");
return gPolicyTokenizerPRLog;
}
#define POLICYTOKENIZERLOG(args) \
MOZ_LOG(GetPolicyTokenizerLog(), mozilla::LogLevel::Debug, args)
static const char16_t SEMICOL = ';';
PolicyTokenizer::PolicyTokenizer(const char16_t* aStart, const char16_t* aEnd)
: mCurChar(aStart), mEndChar(aEnd) {
POLICYTOKENIZERLOG(("PolicyTokenizer::PolicyTokenizer"));
}
PolicyTokenizer::~PolicyTokenizer() {
POLICYTOKENIZERLOG(("PolicyTokenizer::~PolicyTokenizer"));
}
void PolicyTokenizer::generateNextToken() {
skipWhiteSpaceAndSemicolon();
MOZ_ASSERT(mCurToken.Length() == 0);
const char16_t* const start = mCurChar;
while (!atEnd() && !nsContentUtils::IsHTMLWhitespace(*mCurChar) &&
*mCurChar != SEMICOL) {
mCurChar++;
}
if (start != mCurChar) {
mCurToken.Append(start, mCurChar - start);
}
POLICYTOKENIZERLOG(("PolicyTokenizer::generateNextToken: %s",
NS_ConvertUTF16toUTF8(mCurToken).get()));
}
void PolicyTokenizer::generateTokens(policyTokens& outTokens) {
POLICYTOKENIZERLOG(("PolicyTokenizer::generateTokens"));
// dirAndSrcs holds one set of [ name, src, src, src, ... ]
nsTArray<nsString> dirAndSrcs;
while (!atEnd()) {
generateNextToken();
dirAndSrcs.AppendElement(mCurToken);
skipWhiteSpace();
if (atEnd() || accept(SEMICOL)) {
outTokens.AppendElement(std::move(dirAndSrcs));
dirAndSrcs.ClearAndRetainStorage();
}
}
}
void PolicyTokenizer::tokenizePolicy(const nsAString& aPolicyString,
policyTokens& outTokens) {
POLICYTOKENIZERLOG(("PolicyTokenizer::tokenizePolicy"));
PolicyTokenizer tokenizer(aPolicyString.BeginReading(),
aPolicyString.EndReading());
tokenizer.generateTokens(outTokens);
}
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