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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=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 "config.h"
#include <cstdlib>
#include <queue>
#include <string>
bool ConfigEntryBase::ParseInternal(std::queue<const char *> *args,
std::string *out) {
if (args->empty()) return false;
*out = args->front();
args->pop();
return true;
}
bool ConfigEntryBase::ParseInternal(std::queue<const char *> *args, int *out) {
if (args->empty()) return false;
char *endptr;
*out = strtol(args->front(), &endptr, 10);
args->pop();
return !*endptr;
}
bool ConfigEntryBase::ParseInternal(std::queue<const char *> *args, bool *out) {
*out = true;
return true;
}
std::string Config::XformFlag(const std::string &arg) {
if (arg.empty()) return "";
if (arg[0] != '-') return "";
return arg.substr(1);
}
Config::Status Config::ParseArgs(int argc, char **argv) {
std::queue<const char *> args;
for (int i = 1; i < argc; ++i) {
args.push(argv[i]);
}
while (!args.empty()) {
auto e = entries_.find(XformFlag(args.front()));
args.pop();
if (e == entries_.end()) {
return kUnknownFlag;
}
if (!e->second->Parse(&args)) return kMalformedArgument;
}
return kOK;
}
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