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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 "NSPRLogModulesParser.h"
#include "mozilla/Tokenizer.h"
const char kDelimiters[] = ", ";
const char kAdditionalWordChars[] = "_-.*";
namespace mozilla {
void NSPRLogModulesParser(
const char* aLogModules,
const std::function<void(const char*, LogLevel, int32_t)>& aCallback) {
if (!aLogModules) {
return;
}
Tokenizer parser(aLogModules, kDelimiters, kAdditionalWordChars);
nsAutoCString moduleName;
Tokenizer::Token rustModSep =
parser.AddCustomToken("::", Tokenizer::CASE_SENSITIVE);
auto readModuleName = [&](nsAutoCString& moduleName) -> bool {
moduleName.Truncate();
nsDependentCSubstring sub;
parser.Record();
// If the name doesn't include at least one word, we've reached the end.
if (!parser.ReadWord(sub)) {
return false;
}
// We will exit this loop if when any of the condition fails
while (parser.Check(rustModSep) && parser.ReadWord(sub)) {
}
// Claim will include characters of the last sucessfully read item
parser.Claim(moduleName, Tokenizer::INCLUDE_LAST);
return true;
};
// Format: LOG_MODULES="Foo:2,Bar, Baz:5,rust_crate::mod::file:5"
while (readModuleName(moduleName)) {
// Next should be :<level>, default to Error if not provided.
LogLevel logLevel = LogLevel::Error;
int32_t levelValue = 0;
if (parser.CheckChar(':')) {
// NB: If a level isn't provided after the ':' we assume the default
// Error level is desired. This differs from NSPR which will stop
// processing the log module string in this case.
if (parser.ReadSignedInteger(&levelValue)) {
logLevel = ToLogLevel(levelValue);
}
}
aCallback(moduleName.get(), logLevel, levelValue);
// Skip ahead to the next token.
parser.SkipWhites();
}
}
} // namespace mozilla
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