mirror of
https://gitlab.kitware.com/vtk/vtk-m
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105 lines
2.9 KiB
C++
105 lines
2.9 KiB
C++
//============================================================================
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// Copyright (c) Kitware, Inc.
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// All rights reserved.
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// See LICENSE.txt for details.
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//
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// This software is distributed WITHOUT ANY WARRANTY; without even
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// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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// PURPOSE. See the above copyright notice for more information.
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//============================================================================
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#ifndef vtk_m_cont_internal_OptionParserArguments_h
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#define vtk_m_cont_internal_OptionParserArguments_h
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#include <vtkm/cont/Logging.h>
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#include <vtkm/cont/internal/OptionParser.h>
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namespace vtkm
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{
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namespace cont
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{
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namespace internal
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{
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namespace option
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{
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/// All options supported by the parser are stored here for usage in multiple modules
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enum OptionIndex
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{
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// special option for dealing with unknown arguments
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UNKNOWN,
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// general vtkm arguments
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HELP,
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DEVICE,
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LOGLEVEL, // not parsed by this parser, but by loguru
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// TODO: remove deprecated arguments on next vtk-m release
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DEPRECATED_DEVICE,
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DEPRECATED_LOGLEVEL,
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// All RuntimeDeviceConfiguration specific options
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NUM_THREADS,
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NUMA_REGIONS,
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DEVICE_INSTANCE
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};
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struct VtkmArg : public option::Arg
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{
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static option::ArgStatus Required(const option::Option& option, bool msg)
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{
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if (option.arg == nullptr)
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{
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if (msg)
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{
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VTKM_LOG_ALWAYS_S(vtkm::cont::LogLevel::Error,
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"Missing argument after option '"
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<< std::string(option.name, static_cast<size_t>(option.namelen))
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<< "'.\n");
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}
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return option::ARG_ILLEGAL;
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}
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else
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{
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return option::ARG_OK;
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}
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}
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// Method used for guessing whether an option that do not support (perhaps that calling
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// program knows about it) has an option attached to it (which should also be ignored).
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static option::ArgStatus UnknownOption(const option::Option& option, bool msg)
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{
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// If we don't have an arg, obviously we don't have an arg.
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if (option.arg == nullptr)
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{
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return option::ARG_NONE;
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}
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// The option::Arg::Optional method will return that the ARG is OK if and only if
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// the argument is attached to the option (e.g. --foo=bar). If that is the case,
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// then we definitely want to report that the argument is OK.
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if (option::Arg::Optional(option, msg) == option::ARG_OK)
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{
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return option::ARG_OK;
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}
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// Now things get tricky. Maybe the next argument is an option or maybe it is an
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// argument for this option. We will guess that if the next argument does not
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// look like an option, we will treat it as such.
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if (option.arg[0] == '-')
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{
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return option::ARG_NONE;
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}
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else
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{
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return option::ARG_OK;
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}
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}
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};
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} // namespace vtkm::cont::internal::option
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} // namespace vtkm::cont::internal
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} // namespace vtkm::cont
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} // namespace vtkm
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#endif // vtk_m_cont_internal_OptionParserArguments_h
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