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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__ */
#include "ace/ACE.h"
#include "ace/Log_Msg.h"
#include "ace/SString.h"
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.
*/
/*-
* Copyright (c) 2000 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Dieter Baron and Thomas Klausner.
*
* 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 NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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,
int ordering,
int long_only)
: argc_ (argc),
argv_ (argv),
optind (skip),
opterr (report_errors),
optarg (0),
optstring_ (0),
long_only_ (long_only),
has_colon_ (0),
last_option_ (0),
nextchar_ (0),
optopt_ (0),
ordering_ (ordering),
nonopt_start_ (optind),
nonopt_end_ (optind),
long_option_ (0)
{
ACE_TRACE ("ACE_Get_Opt::ACE_Get_Opt");
ACE_NEW (this->optstring_, ACE_TString (optstring));
ACE_NEW (this->last_option_, ACE_TString (ACE_LIB_TEXT ("")));
// First check to see if POSIXLY_CORRECT was set.
if (ACE_OS::getenv (ACE_LIB_TEXT ("POSIXLY_CORRECT")) != 0)
this->ordering_ = REQUIRE_ORDER;
// Now, check to see if any or the following were passed at
// the begining of optstring: '+' same as POSIXLY_CORRECT;
// '-' turns off POSIXLY_CORRECT; or ':' which signifies we
// should return ':' if a parameter is missing for an option.
// We use a loop here, since a combination of "{+|-}:" in any
// order should be legal.
int done = 0;
int offset = 0;
while (!done)
{
switch (optstring[offset++])
{
case '+':
this->ordering_ = REQUIRE_ORDER;
break;
case '-':
this->ordering_ = RETURN_IN_ORDER;
break;
case ':':
this->has_colon_ = 1;
break;
default:
// Quit as soon as we see something else...
done = 1;
break;
}
}
}
ACE_Get_Opt::~ACE_Get_Opt (void)
{
ACE_TRACE ("ACE_Get_Opt::~ACE_Get_Opt");
size_t i = 0;
size_t size = this->long_opts_.size ();
ACE_Get_Opt_Long_Option *option = 0;
for (i = 0; i < size; ++i)
{
int retval = this->long_opts_.get (option, i);
if (retval != 0)
{
// Should never happen.
retval = 0;
continue;
}
if (option)
{
delete option;
option = 0;
}
}
delete this->optstring_;
delete this->last_option_;
}
int
ACE_Get_Opt::nextchar_i (void)
{
ACE_TRACE ("ACE_Get_Opt::nextchar_i");
if (this->ordering_ == PERMUTE_ARGS)
if (this->permute () == EOF)
return EOF;
// Update scanning pointer.
if (this->optind >= this->argc_)
{
// We're done...
this->nextchar_ = 0;
return EOF;
}
else if (*(this->nextchar_ = this->argv_[this->optind]) != '-'
|| this->nextchar_[1] == '\0')
{
// We didn't get an option.
if (this->ordering_ == REQUIRE_ORDER
|| this->ordering_ == PERMUTE_ARGS)
// If we permuted or require the options to be in order, we're done.
return EOF;
// It must be RETURN_IN_ORDER...
this->optarg = this->argv_[this->optind++];
this->nextchar_ = 0;
return 1;
}
else if (this->nextchar_[1] != 0
&& *++this->nextchar_ == '-'
&& this->nextchar_[1] == 0)
{
// Found "--" so we're done...
++this->optind;
this->nextchar_ = 0;
return EOF;
}
// If it's a long option, and we allow long options advance nextchar_.
if (*this->nextchar_ == '-' && this->long_opts_.size () != 0)
this->nextchar_++;
return 0;
}
int
ACE_Get_Opt::long_option_i (void)
{
ACE_TRACE ("ACE_Get_Opt::long_option_i");
ACE_Get_Opt_Long_Option *p;
ACE_TCHAR *s = this->nextchar_;
int hits = 0;
int exact = 0;
ACE_Get_Opt_Long_Option *pfound = 0;
int indfound = 0;
// Advance to the end of the long option name so we can use
// it to get the length for a string compare.
while (*s && *s != '=')
s++;
size_t len = s - this->nextchar_;
// set last_option_ to nextchar_, up to the '='.
this->last_option (ACE_TString (this->nextchar_, len));
size_t size = this->long_opts_.size ();
u_int option_index = 0;
for (option_index = 0; option_index < size ; option_index++)
{
p = this->long_opts_[option_index];
ACE_ASSERT (p);
if (!ACE_OS::strncmp (p->name_, this->nextchar_, len))
{
// Got at least a partial match.
pfound = p;
indfound = option_index;
hits += 1;
if (len == ACE_OS::strlen(p->name_))
{
// And in fact, it's an exact match, so let's use it.
exact = 1;
break;
}
}
}
if ((hits > 1) && !exact)
{
// Great, we found a match, but unfortunately we found more than
// one and it wasn't exact.
if (this->opterr)
ACE_ERROR ((LM_ERROR,
ACE_LIB_TEXT ("%s: option `%s' is ambiguous\n"),
this->argv_[0], this->argv_[this->optind]));
this->nextchar_ = 0;
this->optind++;
return '?';
}
if (pfound != 0)
{
// Okay, we found a good one (either a single hit or an exact match).
option_index = indfound;
this->optind++;
if (*s)
{
// s must point to '=' which means there's an argument (well
// close enough).
if (pfound->has_arg_ != NO_ARG)
// Good, we want an argument and here it is.
this->optarg = ++s;
else
{
// Whoops, we've got what looks like an argument, but we
// don't want one.
if (this->opterr)
ACE_ERROR
((LM_ERROR,
ACE_LIB_TEXT ("%s: long option `--%s' doesn't allow ")
ACE_LIB_TEXT ("an argument\n"),
this->argv_[0], pfound->name_));
// The spec doesn't cover this, so we keep going and the program
// doesn't know we ignored an argument if opt_err is off!!!
}
}
else if (pfound->has_arg_ == ARG_REQUIRED)
{
// s didn't help us, but we need an argument. Note that
// optional arguments for long options must use the "=" syntax,
// so we won't get here in that case.
if (this->optind < this->argc_)
// We still have some elements left, so use the next one.
this->optarg = this->argv_[this->optind++];
else
{
// All out of elements, so we have to punt...
if (this->opterr)
ACE_ERROR ((LM_ERROR,
ACE_LIB_TEXT ("%s: long option '--%s' requires ")
ACE_LIB_TEXT ("an argument\n"),
this->argv_[0], pfound->name_));
this->nextchar_ = 0;
this->optopt_ = pfound->val_; // Remember matching short equiv
return this->has_colon_ ? ':' : '?';
}
}
this->nextchar_ = 0;
this->long_option_ = pfound;
// Since val_ has to be either a valid short option or 0, this works
// great. If the user really wants to know if a long option was passed.
this->optopt_ = pfound->val_;
return pfound->val_;
}
if (!this->long_only_ || this->argv_[this->optind][1] == '-'
|| this->optstring_->find (*this->nextchar_) == ACE_TString::npos)
{
// Okay, we couldn't find a long option. If it isn't long_only (which
// means try the long first, and if not found try the short) or a long
// signature was passed, e.g. "--", or it's not a short (not sure when
// this could happen) it's an error.
if (this->opterr)
ACE_ERROR ((LM_ERROR,
ACE_LIB_TEXT ("%s: illegal long option '--%s'\n"),
this->argv_[0], this->nextchar_));
this->nextchar_ = 0;
this->optind++;
return '?';
}
return this->short_option_i ();
}
int
ACE_Get_Opt::short_option_i (void)
{
ACE_TRACE ("ACE_Get_Opt::short_option_i");
/* Look at and handle the next option-character. */
ACE_TCHAR opt = *this->nextchar_++;
// Set last_option_ to opt
this->last_option (opt);
ACE_TCHAR *oli = 0;
oli = ACE_const_cast (ACE_TCHAR*,
ACE_OS::strchr (this->optstring_->c_str (), opt));
/* Increment `optind' when we start to process its last character. */
if (*this->nextchar_ == '\0')
++this->optind;
if (oli == 0 || opt == ':')
{
if (this->opterr)
ACE_ERROR ((LM_ERROR,
ACE_LIB_TEXT ("%s: illegal short option -- %c\n"),
this->argv_[0], opt));
return '?';
}
if (opt == 'W' && oli[1] == ';')
{
if (this->nextchar_[0] == 0)
this->nextchar_ = this->argv_[this->optind];
return long_option_i ();
}
this->optopt_ = oli[0]; // Remember the option that matched
if (oli[1] == ':')
{
if (oli[2] == ':')
{
// Takes an optional argument, and since short option args must
// must follow directly in the same argument, a NULL nextchar_
// means we didn't get one.
if (*this->nextchar_ != '\0')
{
this->optarg = this->nextchar_;
this->optind++;
}
else
this->optarg = 0;
this->nextchar_ = 0;
}
else
{
// Takes a required argument.
if (*this->nextchar_ != '\0')
{
// Found argument in same argv-element.
this->optarg = this->nextchar_;
this->optind++;
}
else if (this->optind == this->argc_)
{
// Ran out of arguments before finding required argument.
if (this->opterr)
ACE_ERROR ((LM_ERROR,
ACE_LIB_TEXT ("%s: short option requires ")
ACE_LIB_TEXT ("an argument -- %c\n"),
this->argv_[0], opt));
opt = this->has_colon_ ? ':' : '?';
}
else
// Use the next argv-element as the argument.
this->optarg = this->argv_[this->optind++];
this->nextchar_ = 0;
}
}
return opt;
}
int
ACE_Get_Opt::operator () (void)
{
ACE_TRACE ("ACE_Get_Opt_Long::operator");
// First of all, make sure we reinitialize any pointers..
this->optarg = 0;
this->long_option_ = 0;
if (this->argv_ == 0)
{
// It can happen, e.g., on VxWorks.
this->optind = 0;
return -1;
}
// We check this because we can string short options together if the
// preceding one doesn't take an argument.
if (this->nextchar_ == 0 || *this->nextchar_ == '\0')
{
int retval = this->nextchar_i ();
if (retval != 0)
return retval;
}
if (((this->argv_[this->optind][0] == '-')
&& (this->argv_[this->optind][1] == '-')) || this->long_only_)
return this->long_option_i ();
return this->short_option_i ();
}
int
ACE_Get_Opt::long_option (const ACE_TCHAR *name,
OPTION_ARG_MODE has_arg)
{
ACE_TRACE ("ACE_Get_Opt::long_option (const ACE_TCHAR *name, OPTION_ARG_MODE has_arg)");
return this->long_option (name, 0, has_arg);
}
int
ACE_Get_Opt::long_option (const ACE_TCHAR *name,
int short_option,
OPTION_ARG_MODE has_arg)
{
ACE_TRACE ("ACE_Get_Opt::long_option (const ACE_TCHAR *name, int short_option, OPTION_ARG_MODE has_arg)");
// We only allow valid alpha-numeric characters as short options.
// If short_options is not a valid alpha-numeric, we can still return it
// when the long option is found, but won't allow the caller to pass it on
// the command line (how could they?). The special case is 0, but since
// we always return it, we let the caller worry about that.
#if defined (_MSC_VER) && (_MSC_VER >= 1300)
// For MSVC 7.x, we need to prevent "illegal" character getting into
// isalnum, otherwise, it will crash the program.
if (short_option > 0 &&
short_option < 256 &&
isalnum (short_option) != 0)
#else
if (isalnum (short_option) != 0)
#endif /* _MSC_VER && _MSC_VER >= 1300 */
{
// If the short_option already exists, make sure it matches, otherwise
// add it.
ACE_TCHAR *s = 0;
if ((s = ACE_const_cast (ACE_TCHAR*,
ACE_OS::strchr (this->optstring_->c_str (),
short_option))) != 0)
{
// Short option exists, so verify the argument options
if (s[1] == ':')
{
if (s[2] == ':')
{
if (has_arg != ARG_OPTIONAL)
{
if (this->opterr)
ACE_ERROR
((LM_ERROR,
ACE_LIB_TEXT ("Existing short option '%c' takes ")
ACE_LIB_TEXT ("optional argument; adding %s ")
ACE_LIB_TEXT ("requires ARG_OPTIONAL\n"),
short_option, name));
return -1;
}
}
else
if (has_arg != ARG_REQUIRED)
{
if (this->opterr)
ACE_ERROR
((LM_ERROR,
ACE_LIB_TEXT ("Existing short option '%c' requires ")
ACE_LIB_TEXT ("an argument; adding %s ")
ACE_LIB_TEXT ("requires ARG_REQUIRED\n"),
short_option, name));
return -1;
}
}
else if (has_arg != NO_ARG)
{
if (this->opterr)
ACE_ERROR
((LM_ERROR,
ACE_LIB_TEXT ("Existing short option '%c' does not ")
ACE_LIB_TEXT ("accept an argument; adding %s ")
ACE_LIB_TEXT ("requires NO_ARG\n"),
short_option, name));
return -1;
}
}
else
{
// Didn't find short option, so add it...
*this->optstring_ += (ACE_TCHAR) short_option;
if (has_arg == ARG_REQUIRED)
*this->optstring_ += ACE_LIB_TEXT (":");
else if (has_arg == ARG_OPTIONAL)
*this->optstring_ += ACE_LIB_TEXT ("::");
}
}
ACE_Get_Opt_Long_Option *option =
new ACE_Get_Opt_Long_Option (name, has_arg, short_option);
if (!option)
return -1;
// Add to array
size_t size = this->long_opts_.size ();
if (this->long_opts_.size (size + 1) != 0
|| this->long_opts_.set (option, size) != 0)
{
delete option;
ACE_ERROR_RETURN
((LM_ERROR, ACE_LIB_TEXT ("Could not add long option to array.\n")),
-1);
}
return 0;
}
const ACE_TCHAR*
ACE_Get_Opt::long_option (void) const
{
ACE_TRACE ("ACE_Get_Opt::long_option (void)");
if (this->long_option_)
return this->long_option_->name_;
return 0;
}
const ACE_TCHAR*
ACE_Get_Opt::last_option (void) const
{
return this->last_option_->c_str ();
}
void
ACE_Get_Opt::last_option (const ACE_TString &last_option)
{
*this->last_option_ = last_option;
}
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_LIB_TEXT ("\n")
ACE_LIB_TEXT ("opstring_ = %s\n")
ACE_LIB_TEXT ("long_only_ = %d\n")
ACE_LIB_TEXT ("has_colon_ = %d\n")
ACE_LIB_TEXT ("last_option_ = %s\n")
ACE_LIB_TEXT ("nextchar_ = %s\n")
ACE_LIB_TEXT ("optopt_ = %c\n")
ACE_LIB_TEXT ("ordering_ = %d\n"),
this->optstring_->c_str (),
this->long_only_,
this->has_colon_,
this->last_option_->c_str (),
this->nextchar_,
this->optopt_,
this->ordering_));
// now loop through the
size_t size = this->long_opts_.size ();
for (u_int i = 0; i < size ; ++i)
{
ACE_DEBUG ((LM_DEBUG, ACE_LIB_TEXT ("\n")
ACE_LIB_TEXT ("long_option name_ = %s\n")
ACE_LIB_TEXT ("has_arg_ = %d\n")
ACE_LIB_TEXT ("val_ = %d\n"),
this->long_opts_[i]->name_,
this->long_opts_[i]->has_arg_,
this->long_opts_[i]->val_));
}
ACE_DEBUG ((LM_DEBUG, ACE_END_DUMP));
}
void
ACE_Get_Opt::permute_args (void)
{
ACE_TRACE ("ACE_Get_Opt::permute_args");
int cstart, cyclelen, i, j, ncycle, nnonopts, nopts, pos;
ACE_TCHAR *swap;
int opt_end = this->optind;
nnonopts = this->nonopt_end_ - this->nonopt_start_;
nopts = opt_end - this->nonopt_end_;
ncycle = ACE::gcd (nnonopts, nopts);
cyclelen = (opt_end - this->nonopt_start_) / ncycle;
this->optind = this->optind - nnonopts;
for (i = 0; i < ncycle; i++)
{
cstart = this->nonopt_end_ + i;
pos = cstart;
for (j = 0; j < cyclelen; j++)
{
if (pos >= this->nonopt_end_)
pos -= nnonopts;
else
pos += nopts;
swap = this->argv_[pos];
((ACE_TCHAR **)this->argv_)[pos] = argv_[cstart];
((ACE_TCHAR **)this->argv_)[cstart] = swap;
}
}
}
int
ACE_Get_Opt::permute (void)
{
ACE_TRACE ("ACE_Get_Opt::permute");
if (this->nonopt_start_ != this->nonopt_end_
&& this->nonopt_start_ != this->optind)
this->permute_args ();
this->nonopt_start_ = this->optind;
// Skip over args untill we find the next option.
while (this->optind < this->argc_
&& (this->argv_[this->optind][0] != '-'
|| this->argv_[this->optind][1] == '\0'))
this->optind++;
// Got an option, so mark this as the end of the non options.
this->nonopt_end_ = this->optind;
if (this->optind != this->argc_
&& ACE_OS::strcmp (this->argv_[this->optind],
ACE_LIB_TEXT ("--")) == 0)
{
// We found the marker for the end of the options.
this->optind++;
if (this->nonopt_start_ != this->nonopt_end_
&& this->nonopt_end_ != this->optind)
this->permute_args ();
}
if (this->optind == this->argc_)
{
if (this->nonopt_start_ != this->nonopt_end_)
this->optind = this->nonopt_start_;
return EOF;
}
return 0;
}
const ACE_TCHAR *
ACE_Get_Opt::optstring (void) const
{
return this->optstring_->c_str ();
}
ACE_Get_Opt::ACE_Get_Opt_Long_Option::ACE_Get_Opt_Long_Option (const ACE_TCHAR *name,
int has_arg,
int val)
: name_ (ACE::strnew(name)),
has_arg_ (has_arg),
val_ (val)
{}
ACE_Get_Opt::ACE_Get_Opt_Long_Option::~ACE_Get_Opt_Long_Option (void)
{
delete [] ACE_const_cast (ACE_TCHAR*, this->name_);
}
#if defined (ACE_HAS_EXPLICIT_TEMPLATE_INSTANTIATION)
template class ACE_Array<ACE_Get_Opt::ACE_Get_Opt_Long_Option *>;
template class ACE_Array_Base<ACE_Get_Opt::ACE_Get_Opt_Long_Option *>;
#elif defined (ACE_HAS_TEMPLATE_INSTANTIATION_PRAGMA)
#pragma instantiate ACE_Array<ACE_Get_Opt::ACE_Get_Opt_Long_Option *>
#pragma instantiate ACE_Array_Base<ACE_Get_Opt::ACE_Get_Opt_Long_Option *>
#endif /* ACE_HAS_EXPLICIT_TEMPLATE_INSTANTIATION */
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