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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* 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/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you 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 .
*/
#include "options.hxx"
#include <osl/diagnose.h>
#include <stdio.h>
namespace registry::tools
{
Options::Options (char const * program)
: m_program (program)
{}
Options::~Options()
{}
// static
bool Options::checkArgument(std::vector< std::string> & rArgs, char const * arg, size_t len)
{
bool result = ((arg != nullptr) && (len > 0));
OSL_PRECOND(result, "registry::tools::Options::checkArgument(): invalid arguments");
if (result)
{
switch (arg[0])
{
case '@':
result = len > 1;
if (result)
{
// "@<cmdfile>"
result = Options::checkCommandFile(rArgs, &(arg[1]));
}
break;
case '-':
result = len > 1;
if (result)
{
// "-<option>"
std::string option (&(arg[0]), 2);
rArgs.push_back(option);
if (len > 2)
{
// "-<option><param>"
std::string param(&(arg[2]), len - 2);
rArgs.push_back(param);
}
}
break;
default:
rArgs.push_back(std::string(arg, len));
break;
}
}
return result;
}
// static
bool Options::checkCommandFile(std::vector< std::string > & rArgs, char const * filename)
{
FILE * fp = fopen(filename, "r");
if (fp == nullptr)
{
fprintf(stderr, "ERROR: Can't open command file \"%s\"\n", filename);
return false;
}
std::string buffer;
buffer.reserve(256);
bool quoted = false;
int c = EOF;
while ((c = fgetc(fp)) != EOF)
{
switch(c)
{
case '\"':
quoted = !quoted;
break;
case ' ':
case '\t':
case '\r':
case '\n':
if (!quoted)
{
if (!buffer.empty())
{
if (!checkArgument(rArgs, buffer.c_str(), buffer.size()))
{
// failure.
(void) fclose(fp);
return false;
}
buffer.clear();
}
break;
}
[[fallthrough]];
default:
buffer.push_back(sal::static_int_cast<char>(c));
break;
}
}
return fclose(fp) == 0;
}
bool Options::initOptions (std::vector< std::string > & rArgs)
{
return initOptions_Impl (rArgs);
}
bool Options::badOption (char const * reason, char const * option) const
{
(void) fprintf(stderr, "%s: %s option '%s'\n", m_program.c_str(), reason, option);
return printUsage();
}
bool Options::printUsage() const
{
printUsage_Impl();
return false;
}
} // namespace registry::tools
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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