613 lines
20 KiB
C++
613 lines
20 KiB
C++
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// Copyright 2010 Google Inc.
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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// * Neither the name of Google Inc. nor the names of its contributors
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// may be used to endorse or promote products derived from this software
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// without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#include "utils/cmdline/options.hpp"
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#include <stdexcept>
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#include <vector>
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#include "utils/cmdline/exceptions.hpp"
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#include "utils/defs.hpp"
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#include "utils/format/macros.hpp"
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#include "utils/fs/exceptions.hpp"
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#include "utils/sanity.hpp"
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#include "utils/text/operations.ipp"
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namespace cmdline = utils::cmdline;
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namespace text = utils::text;
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/// Constructs a generic option with both a short and a long name.
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///
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/// \param short_name_ The short name for the option.
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/// \param long_name_ The long name for the option.
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/// \param description_ A user-friendly description for the option.
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/// \param arg_name_ If not NULL, specifies that the option must receive an
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/// argument and specifies the name of such argument for documentation
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/// purposes.
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/// \param default_value_ If not NULL, specifies that the option has a default
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/// value for the mandatory argument.
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cmdline::base_option::base_option(const char short_name_,
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const char* long_name_,
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const char* description_,
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const char* arg_name_,
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const char* default_value_) :
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_short_name(short_name_),
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_long_name(long_name_),
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_description(description_),
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_arg_name(arg_name_ == NULL ? "" : arg_name_),
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_has_default_value(default_value_ != NULL),
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_default_value(default_value_ == NULL ? "" : default_value_)
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{
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INV(short_name_ != '\0');
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}
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/// Constructs a generic option with a long name only.
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///
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/// \param long_name_ The long name for the option.
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/// \param description_ A user-friendly description for the option.
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/// \param arg_name_ If not NULL, specifies that the option must receive an
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/// argument and specifies the name of such argument for documentation
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/// purposes.
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/// \param default_value_ If not NULL, specifies that the option has a default
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/// value for the mandatory argument.
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cmdline::base_option::base_option(const char* long_name_,
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const char* description_,
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const char* arg_name_,
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const char* default_value_) :
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_short_name('\0'),
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_long_name(long_name_),
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_description(description_),
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_arg_name(arg_name_ == NULL ? "" : arg_name_),
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_has_default_value(default_value_ != NULL),
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_default_value(default_value_ == NULL ? "" : default_value_)
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{
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}
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/// Destructor for the option.
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cmdline::base_option::~base_option(void)
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{
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}
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/// Checks whether the option has a short name or not.
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///
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/// \return True if the option has a short name, false otherwise.
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bool
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cmdline::base_option::has_short_name(void) const
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{
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return _short_name != '\0';
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}
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/// Returns the short name of the option.
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///
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/// \pre has_short_name() must be true.
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///
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/// \return The short name.
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char
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cmdline::base_option::short_name(void) const
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{
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PRE(has_short_name());
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return _short_name;
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}
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/// Returns the long name of the option.
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///
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/// \return The long name.
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const std::string&
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cmdline::base_option::long_name(void) const
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{
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return _long_name;
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}
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/// Returns the description of the option.
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///
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/// \return The description.
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const std::string&
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cmdline::base_option::description(void) const
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{
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return _description;
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}
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/// Checks whether the option needs an argument or not.
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///
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/// \return True if the option needs an argument, false otherwise.
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bool
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cmdline::base_option::needs_arg(void) const
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{
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return !_arg_name.empty();
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}
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/// Returns the argument name of the option for documentation purposes.
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///
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/// \pre needs_arg() must be true.
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///
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/// \return The argument name.
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const std::string&
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cmdline::base_option::arg_name(void) const
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{
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INV(needs_arg());
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return _arg_name;
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}
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/// Checks whether the option has a default value for its argument.
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///
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/// \pre needs_arg() must be true.
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///
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/// \return True if the option has a default value, false otherwise.
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bool
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cmdline::base_option::has_default_value(void) const
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{
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PRE(needs_arg());
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return _has_default_value;
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}
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/// Returns the default value for the argument to the option.
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///
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/// \pre has_default_value() must be true.
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///
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/// \return The default value.
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const std::string&
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cmdline::base_option::default_value(void) const
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{
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INV(has_default_value());
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return _default_value;;
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}
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/// Formats the short name of the option for documentation purposes.
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///
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/// \return A string describing the option's short name.
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std::string
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cmdline::base_option::format_short_name(void) const
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{
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PRE(has_short_name());
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if (needs_arg()) {
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return F("-%s %s") % short_name() % arg_name();
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} else {
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return F("-%s") % short_name();
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}
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}
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/// Formats the long name of the option for documentation purposes.
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///
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/// \return A string describing the option's long name.
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std::string
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cmdline::base_option::format_long_name(void) const
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{
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if (needs_arg()) {
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return F("--%s=%s") % long_name() % arg_name();
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} else {
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return F("--%s") % long_name();
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}
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}
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/// Ensures that an argument passed to the option is valid.
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///
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/// This must be reimplemented by subclasses that describe options with
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/// arguments.
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///
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/// \param unused_str The argument to validate as provided by the user in the
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/// command line.
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///
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/// \throw cmdline::option_argument_value_error Subclasses must raise this
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/// exception to indicate the cases in which str is invalid.
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void
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cmdline::base_option::validate(const std::string& UTILS_UNUSED_PARAM(str)) const
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{
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UNREACHABLE_MSG("Option does not support an argument");
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}
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/// Constructs a boolean option with both a short and a long name.
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///
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/// \param short_name_ The short name for the option.
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/// \param long_name_ The long name for the option.
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/// \param description_ A user-friendly description for the option.
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cmdline::bool_option::bool_option(const char short_name_,
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const char* long_name_,
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const char* description_) :
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base_option(short_name_, long_name_, description_)
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{
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}
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/// Constructs a boolean option with a long name only.
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///
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/// \param long_name_ The long name for the option.
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/// \param description_ A user-friendly description for the option.
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cmdline::bool_option::bool_option(const char* long_name_,
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const char* description_) :
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base_option(long_name_, description_)
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{
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}
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/// Constructs an integer option with both a short and a long name.
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///
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/// \param short_name_ The short name for the option.
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/// \param long_name_ The long name for the option.
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/// \param description_ A user-friendly description for the option.
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/// \param arg_name_ The name of the mandatory argument, for documentation
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/// purposes.
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/// \param default_value_ If not NULL, the default value for the mandatory
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/// argument.
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cmdline::int_option::int_option(const char short_name_,
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const char* long_name_,
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const char* description_,
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const char* arg_name_,
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const char* default_value_) :
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base_option(short_name_, long_name_, description_, arg_name_,
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default_value_)
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{
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}
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/// Constructs an integer option with a long name only.
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///
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/// \param long_name_ The long name for the option.
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/// \param description_ A user-friendly description for the option.
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/// \param arg_name_ The name of the mandatory argument, for documentation
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/// purposes.
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/// \param default_value_ If not NULL, the default value for the mandatory
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/// argument.
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cmdline::int_option::int_option(const char* long_name_,
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const char* description_,
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const char* arg_name_,
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const char* default_value_) :
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base_option(long_name_, description_, arg_name_, default_value_)
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{
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}
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/// Ensures that an integer argument passed to the int_option is valid.
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///
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/// \param raw_value The argument representing an integer as provided by the
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/// user.
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///
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/// \throw cmdline::option_argument_value_error If the integer provided in
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/// raw_value is invalid.
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void
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cmdline::int_option::validate(const std::string& raw_value) const
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{
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try {
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(void)text::to_type< int >(raw_value);
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} catch (const std::runtime_error& e) {
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throw cmdline::option_argument_value_error(
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F("--%s") % long_name(), raw_value, "Not a valid integer");
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}
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}
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/// Converts an integer argument to a native integer.
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///
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/// \param raw_value The argument representing an integer as provided by the
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/// user.
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///
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/// \return The integer.
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///
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/// \pre validate(raw_value) must be true.
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int
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cmdline::int_option::convert(const std::string& raw_value)
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{
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try {
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return text::to_type< int >(raw_value);
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} catch (const std::runtime_error& e) {
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PRE_MSG(false, F("Raw value '%s' for int option not properly "
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"validated: %s") % raw_value % e.what());
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}
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}
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/// Constructs a list option with both a short and a long name.
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///
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/// \param short_name_ The short name for the option.
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/// \param long_name_ The long name for the option.
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/// \param description_ A user-friendly description for the option.
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/// \param arg_name_ The name of the mandatory argument, for documentation
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/// purposes.
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/// \param default_value_ If not NULL, the default value for the mandatory
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/// argument.
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cmdline::list_option::list_option(const char short_name_,
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const char* long_name_,
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const char* description_,
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const char* arg_name_,
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const char* default_value_) :
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base_option(short_name_, long_name_, description_, arg_name_,
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default_value_)
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{
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}
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/// Constructs a list option with a long name only.
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///
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/// \param long_name_ The long name for the option.
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/// \param description_ A user-friendly description for the option.
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/// \param arg_name_ The name of the mandatory argument, for documentation
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/// purposes.
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/// \param default_value_ If not NULL, the default value for the mandatory
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/// argument.
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cmdline::list_option::list_option(const char* long_name_,
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const char* description_,
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const char* arg_name_,
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const char* default_value_) :
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base_option(long_name_, description_, arg_name_, default_value_)
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{
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}
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/// Ensures that a lisstring argument passed to the list_option is valid.
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///
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/// \param unused_raw_value The argument representing a list as provided by the
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/// user.
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void
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cmdline::list_option::validate(
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const std::string& UTILS_UNUSED_PARAM(raw_value)) const
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{
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// Any list is potentially valid; the caller must check for semantics.
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}
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/// Converts a string argument to a vector.
|
||
|
|
///
|
||
|
|
/// \param raw_value The argument representing a list as provided by the user.
|
||
|
|
///
|
||
|
|
/// \return The list.
|
||
|
|
///
|
||
|
|
/// \pre validate(raw_value) must be true.
|
||
|
|
cmdline::list_option::option_type
|
||
|
|
cmdline::list_option::convert(const std::string& raw_value)
|
||
|
|
{
|
||
|
|
try {
|
||
|
|
return text::split(raw_value, ',');
|
||
|
|
} catch (const std::runtime_error& e) {
|
||
|
|
PRE_MSG(false, F("Raw value '%s' for list option not properly "
|
||
|
|
"validated: %s") % raw_value % e.what());
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/// Constructs a path option with both a short and a long name.
|
||
|
|
///
|
||
|
|
/// \param short_name_ The short name for the option.
|
||
|
|
/// \param long_name_ The long name for the option.
|
||
|
|
/// \param description_ A user-friendly description for the option.
|
||
|
|
/// \param arg_name_ The name of the mandatory argument, for documentation
|
||
|
|
/// purposes.
|
||
|
|
/// \param default_value_ If not NULL, the default value for the mandatory
|
||
|
|
/// argument.
|
||
|
|
cmdline::path_option::path_option(const char short_name_,
|
||
|
|
const char* long_name_,
|
||
|
|
const char* description_,
|
||
|
|
const char* arg_name_,
|
||
|
|
const char* default_value_) :
|
||
|
|
base_option(short_name_, long_name_, description_, arg_name_,
|
||
|
|
default_value_)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/// Constructs a path option with a long name only.
|
||
|
|
///
|
||
|
|
/// \param long_name_ The long name for the option.
|
||
|
|
/// \param description_ A user-friendly description for the option.
|
||
|
|
/// \param arg_name_ The name of the mandatory argument, for documentation
|
||
|
|
/// purposes.
|
||
|
|
/// \param default_value_ If not NULL, the default value for the mandatory
|
||
|
|
/// argument.
|
||
|
|
cmdline::path_option::path_option(const char* long_name_,
|
||
|
|
const char* description_,
|
||
|
|
const char* arg_name_,
|
||
|
|
const char* default_value_) :
|
||
|
|
base_option(long_name_, description_, arg_name_, default_value_)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/// Ensures that a path argument passed to the path_option is valid.
|
||
|
|
///
|
||
|
|
/// \param raw_value The argument representing a path as provided by the user.
|
||
|
|
///
|
||
|
|
/// \throw cmdline::option_argument_value_error If the path provided in
|
||
|
|
/// raw_value is invalid.
|
||
|
|
void
|
||
|
|
cmdline::path_option::validate(const std::string& raw_value) const
|
||
|
|
{
|
||
|
|
try {
|
||
|
|
(void)utils::fs::path(raw_value);
|
||
|
|
} catch (const utils::fs::error& e) {
|
||
|
|
throw cmdline::option_argument_value_error(F("--%s") % long_name(),
|
||
|
|
raw_value, e.what());
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/// Converts a path argument to a utils::fs::path.
|
||
|
|
///
|
||
|
|
/// \param raw_value The argument representing a path as provided by the user.
|
||
|
|
///
|
||
|
|
/// \return The path.
|
||
|
|
///
|
||
|
|
/// \pre validate(raw_value) must be true.
|
||
|
|
utils::fs::path
|
||
|
|
cmdline::path_option::convert(const std::string& raw_value)
|
||
|
|
{
|
||
|
|
try {
|
||
|
|
return utils::fs::path(raw_value);
|
||
|
|
} catch (const std::runtime_error& e) {
|
||
|
|
PRE_MSG(false, F("Raw value '%s' for path option not properly "
|
||
|
|
"validated: %s") % raw_value % e.what());
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/// Constructs a property option with both a short and a long name.
|
||
|
|
///
|
||
|
|
/// \param short_name_ The short name for the option.
|
||
|
|
/// \param long_name_ The long name for the option.
|
||
|
|
/// \param description_ A user-friendly description for the option.
|
||
|
|
/// \param arg_name_ The name of the mandatory argument, for documentation
|
||
|
|
/// purposes. Must include the '=' delimiter.
|
||
|
|
cmdline::property_option::property_option(const char short_name_,
|
||
|
|
const char* long_name_,
|
||
|
|
const char* description_,
|
||
|
|
const char* arg_name_) :
|
||
|
|
base_option(short_name_, long_name_, description_, arg_name_)
|
||
|
|
{
|
||
|
|
PRE(arg_name().find('=') != std::string::npos);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/// Constructs a property option with a long name only.
|
||
|
|
///
|
||
|
|
/// \param long_name_ The long name for the option.
|
||
|
|
/// \param description_ A user-friendly description for the option.
|
||
|
|
/// \param arg_name_ The name of the mandatory argument, for documentation
|
||
|
|
/// purposes. Must include the '=' delimiter.
|
||
|
|
cmdline::property_option::property_option(const char* long_name_,
|
||
|
|
const char* description_,
|
||
|
|
const char* arg_name_) :
|
||
|
|
base_option(long_name_, description_, arg_name_)
|
||
|
|
{
|
||
|
|
PRE(arg_name().find('=') != std::string::npos);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/// Validates the argument to a property option.
|
||
|
|
///
|
||
|
|
/// \param raw_value The argument provided by the user.
|
||
|
|
void
|
||
|
|
cmdline::property_option::validate(const std::string& raw_value) const
|
||
|
|
{
|
||
|
|
const std::string::size_type pos = raw_value.find('=');
|
||
|
|
if (pos == std::string::npos)
|
||
|
|
throw cmdline::option_argument_value_error(
|
||
|
|
F("--%s") % long_name(), raw_value,
|
||
|
|
F("Argument does not have the form '%s'") % arg_name());
|
||
|
|
|
||
|
|
const std::string key = raw_value.substr(0, pos);
|
||
|
|
if (key.empty())
|
||
|
|
throw cmdline::option_argument_value_error(
|
||
|
|
F("--%s") % long_name(), raw_value, "Empty property name");
|
||
|
|
|
||
|
|
const std::string value = raw_value.substr(pos + 1);
|
||
|
|
if (value.empty())
|
||
|
|
throw cmdline::option_argument_value_error(
|
||
|
|
F("--%s") % long_name(), raw_value, "Empty value");
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/// Returns the property option in a key/value pair form.
|
||
|
|
///
|
||
|
|
/// \param raw_value The argument provided by the user.
|
||
|
|
///
|
||
|
|
/// \return raw_value The key/value pair representation of the property.
|
||
|
|
///
|
||
|
|
/// \pre validate(raw_value) must be true.
|
||
|
|
cmdline::property_option::option_type
|
||
|
|
cmdline::property_option::convert(const std::string& raw_value)
|
||
|
|
{
|
||
|
|
const std::string::size_type pos = raw_value.find('=');
|
||
|
|
return std::make_pair(raw_value.substr(0, pos), raw_value.substr(pos + 1));
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/// Constructs a string option with both a short and a long name.
|
||
|
|
///
|
||
|
|
/// \param short_name_ The short name for the option.
|
||
|
|
/// \param long_name_ The long name for the option.
|
||
|
|
/// \param description_ A user-friendly description for the option.
|
||
|
|
/// \param arg_name_ The name of the mandatory argument, for documentation
|
||
|
|
/// purposes.
|
||
|
|
/// \param default_value_ If not NULL, the default value for the mandatory
|
||
|
|
/// argument.
|
||
|
|
cmdline::string_option::string_option(const char short_name_,
|
||
|
|
const char* long_name_,
|
||
|
|
const char* description_,
|
||
|
|
const char* arg_name_,
|
||
|
|
const char* default_value_) :
|
||
|
|
base_option(short_name_, long_name_, description_, arg_name_,
|
||
|
|
default_value_)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/// Constructs a string option with a long name only.
|
||
|
|
///
|
||
|
|
/// \param long_name_ The long name for the option.
|
||
|
|
/// \param description_ A user-friendly description for the option.
|
||
|
|
/// \param arg_name_ The name of the mandatory argument, for documentation
|
||
|
|
/// purposes.
|
||
|
|
/// \param default_value_ If not NULL, the default value for the mandatory
|
||
|
|
/// argument.
|
||
|
|
cmdline::string_option::string_option(const char* long_name_,
|
||
|
|
const char* description_,
|
||
|
|
const char* arg_name_,
|
||
|
|
const char* default_value_) :
|
||
|
|
base_option(long_name_, description_, arg_name_, default_value_)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/// Does nothing; all string values are valid arguments to a string_option.
|
||
|
|
///
|
||
|
|
/// \param unused_raw_value The argument provided by the user.
|
||
|
|
void
|
||
|
|
cmdline::string_option::validate(
|
||
|
|
const std::string& UTILS_UNUSED_PARAM(raw_value)) const
|
||
|
|
{
|
||
|
|
// Nothing to do.
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/// Returns the string unmodified.
|
||
|
|
///
|
||
|
|
/// \param raw_value The argument provided by the user.
|
||
|
|
///
|
||
|
|
/// \return raw_value
|
||
|
|
///
|
||
|
|
/// \pre validate(raw_value) must be true.
|
||
|
|
std::string
|
||
|
|
cmdline::string_option::convert(const std::string& raw_value)
|
||
|
|
{
|
||
|
|
return raw_value;
|
||
|
|
}
|