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/* Copyright (c) 2014, Google Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
#include <string>
#include <vector>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "internal.h"
bool ParseKeyValueArguments(std::map<std::string, std::string> *out_args,
const std::vector<std::string> &args,
const struct argument *templates) {
out_args->clear();
for (size_t i = 0; i < args.size(); i++) {
const std::string &arg = args[i];
const struct argument *templ = nullptr;
for (size_t j = 0; templates[j].name[0] != 0; j++) {
if (strcmp(arg.c_str(), templates[j].name) == 0) {
templ = &templates[j];
break;
}
}
if (templ == nullptr) {
fprintf(stderr, "Unknown argument: %s\n", arg.c_str());
return false;
}
if (out_args->find(arg) != out_args->end()) {
fprintf(stderr, "Duplicate argument: %s\n", arg.c_str());
return false;
}
if (templ->type == kBooleanArgument) {
(*out_args)[arg] = "";
} else {
if (i + 1 >= args.size()) {
fprintf(stderr, "Missing argument for option: %s\n", arg.c_str());
return false;
}
(*out_args)[arg] = args[++i];
}
}
for (size_t j = 0; templates[j].name[0] != 0; j++) {
const struct argument *templ = &templates[j];
if (templ->type == kRequiredArgument &&
out_args->find(templ->name) == out_args->end()) {
fprintf(stderr, "Missing value for required argument: %s\n", templ->name);
return false;
}
}
return true;
}
void PrintUsage(const struct argument *templates) {
for (size_t i = 0; templates[i].name[0] != 0; i++) {
const struct argument *templ = &templates[i];
fprintf(stderr, "%s\t%s\n", templ->name, templ->description);
}
}
bool GetUnsigned(unsigned *out, const std::string &arg_name,
unsigned default_value,
const std::map<std::string, std::string> &args) {
const auto &it = args.find(arg_name);
if (it == args.end()) {
*out = default_value;
return true;
}
const std::string &value = it->second;
if (value.empty()) {
return false;
}
char *endptr;
unsigned long int num = strtoul(value.c_str(), &endptr, 10);
if (*endptr ||
num > UINT_MAX) {
return false;
}
*out = num;
return true;
}
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