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// Get_Opt.cpp
// $Id$
#include "ace/Get_Opt.h"
#if !defined (__ACE_INLINE__)
#include "ace/Get_Opt.i"
#endif /* __ACE_INLINE__ */
ACE_RCSID(ace, Get_Opt, "$Id$")
/*
* Copyright (c) 1987, 1993, 1994
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
ACE_ALLOC_HOOK_DEFINE(ACE_Get_Opt)
ACE_Get_Opt::ACE_Get_Opt (int argc,
ACE_TCHAR **argv,
const ACE_TCHAR *optstring,
int skip,
int report_errors)
: optarg (0),
optind (skip),
opterr (report_errors),
argc_ (argc),
argv_ (argv),
nextchar_ (0),
optstring_ (optstring)
{
ACE_TRACE ("ACE_Get_Opt::ACE_Get_Opt");
}
void
ACE_Get_Opt::dump (void) const
{
ACE_TRACE ("ACE_Get_Opt::dump");
ACE_DEBUG ((LM_DEBUG, ACE_BEGIN_DUMP, this));
ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("\n")));
ACE_DEBUG ((LM_DEBUG, ACE_END_DUMP));
}
int
ACE_Get_Opt::operator () (void)
{
ACE_TRACE ("ACE_Get_Opt::operator");
if (argv_ == 0)
{
// It can happen, e.g., on VxWorks.
optind = 0;
return EOF;
}
int opt; // Character checked for validity.
const ACE_TCHAR *oli; // Option letter index.
if (this->nextchar_ == 0 || *this->nextchar_ == '\0')
{
// Update scanning pointer.
if (this->optind >= this->argc_
|| *(this->nextchar_ = this->argv_[this->optind]) != '-')
{
this->nextchar_ = ACE_const_cast (ACE_TCHAR *, ACE_TEXT (""));
return EOF;
}
if (this->nextchar_[1] != 0
&& *++this->nextchar_ == '-')
{
// Found "--".
++this->optind;
this->nextchar_ = ACE_const_cast (ACE_TCHAR *, ACE_TEXT (""));
return EOF;
}
}
// Option letter okay?
opt = (int) *this->nextchar_++;
if (opt == (int) ':'
|| ((oli = ACE_OS::strchr (this->optstring_, opt)) == 0))
{
// If the user didn't specify '-' as an option, assume it means
// EOF.
if (opt == (int) '-')
return EOF;
if (*this->nextchar_ == 0)
++this->optind;
if (this->opterr && *this->optstring_ != ':')
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("%s: illegal option -- %c\n"),
this->argv_[0],
opt));
return '?';
}
if (*++oli != ':')
{ // Don't need argument.
this->optarg = 0;
if (!*this->nextchar_)
++this->optind;
}
else
{ // Need an argument.
if (*this->nextchar_) // No white space.
this->optarg = this->nextchar_;
else if (this->argc_ <= ++this->optind)
{
// No arg.
this->nextchar_ = ACE_const_cast (ACE_TCHAR *, ACE_TEXT (""));
if (*this->optstring_ == ':')
return ':';
if (this->opterr)
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("%s: option requires an argument -- %c\n"),
this->argv_[0], opt));
return '?';
}
else // White space.
this->optarg = this->argv_[this->optind];
this->nextchar_ = ACE_const_cast (ACE_TCHAR *, ACE_TEXT (""));
++this->optind;
}
return opt; // Dump back option letter.
}
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