LatinIME/native/dicttoolkit/src/utils/arguments_parser.cpp

99 lines
3.7 KiB
C++

/*
* Copyright (C) 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "utils/arguments_parser.h"
#include <unordered_set>
namespace latinime {
namespace dicttoolkit {
const int ArgumentSpec::UNLIMITED_COUNT = -1;
bool ArgumentsParser::validateSpecs() const {
std::unordered_set<std::string> argumentNameSet;
for (size_t i = 0; i < mArgumentSpecs.size() ; ++i) {
if (mArgumentSpecs[i].getMinCount() == 0 && mArgumentSpecs[i].getMaxCount() == 0) {
AKLOGE("minCount = maxCount = 0 for %s.", mArgumentSpecs[i].getName().c_str());
return false;
}
if (mArgumentSpecs[i].getMinCount() != mArgumentSpecs[i].getMaxCount()
&& i != mArgumentSpecs.size() - 1) {
AKLOGE("Variable length argument must be at the end.",
mArgumentSpecs[i].getName().c_str()v );
return false;
}
if (argumentNameSet.count(mArgumentSpecs[i].getName()) > 0) {
AKLOGE("Multiple arguments have the same name \"%s\".",
mArgumentSpecs[i].getName().c_str());
return false;
}
argumentNameSet.insert(mArgumentSpecs[i].getName());
}
return true;
}
void ArgumentsParser::printUsage(const std::string &commandName,
const std::string &description) const {
printf("Usage: %s", commandName.c_str());
for (const auto &option : mOptionSpecs) {
const std::string &optionName = option.first;
const OptionSpec &spec = option.second;
printf(" [-%s", optionName.c_str());
if (spec.takeValue()) {
printf(" <%s>", spec.getValueName().c_str());
}
printf("]");
}
for (const auto &argSpec : mArgumentSpecs) {
if (argSpec.getMinCount() == 0 && argSpec.getMaxCount() == 1) {
printf(" [<%s>]", argSpec.getName().c_str());
} else if (argSpec.getMinCount() == 1 && argSpec.getMaxCount() == 1) {
printf(" <%s>", argSpec.getName().c_str());
} else if (argSpec.getMinCount() == 0) {
printf(" [<%s>...]", argSpec.getName().c_str());
} else if (argSpec.getMinCount() == 1) {
printf(" <%s>...", argSpec.getName().c_str());
}
}
printf("\n%s\n\n", description.c_str());
for (const auto &option : mOptionSpecs) {
const std::string &optionName = option.first;
const OptionSpec &spec = option.second;
printf(" -%s", optionName.c_str());
if (spec.takeValue()) {
printf(" <%s>", spec.getValueName().c_str());
}
printf("\t\t\t%s", spec.getDescription().c_str());
if (spec.takeValue() && !spec.getDefaultValue().empty()) {
printf("\tdefault: %s", spec.getDefaultValue().c_str());
}
printf("\n");
}
for (const auto &argSpec : mArgumentSpecs) {
printf(" <%s>\t\t\t%s\n", argSpec.getName().c_str(), argSpec.getDescription().c_str());
}
printf("\n\n");
}
const ArgumentsAndOptions ArgumentsParser::parseArguments(const int argc, char **argv) const {
// TODO: Implement
return ArgumentsAndOptions();
}
} // namespace dicttoolkit
} // namespace latinime