9910095719
Some positional parameters would be listed in the help text and others would not, when what is desired is that no positional parameters are listed with the other command options. This change suppresses the help listing for all positional parameters.
2105 lines
41 KiB
C++
2105 lines
41 KiB
C++
/*
|
||
|
||
Copyright (c) 2014, 2015, 2016, 2017 Jarryd Beck
|
||
|
||
Permission is hereby granted, free of charge, to any person obtaining a copy
|
||
of this software and associated documentation files (the "Software"), to deal
|
||
in the Software without restriction, including without limitation the rights
|
||
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||
copies of the Software, and to permit persons to whom the Software is
|
||
furnished to do so, subject to the following conditions:
|
||
|
||
The above copyright notice and this permission notice shall be included in
|
||
all copies or substantial portions of the Software.
|
||
|
||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||
THE SOFTWARE.
|
||
|
||
*/
|
||
|
||
#ifndef CXXOPTS_HPP_INCLUDED
|
||
#define CXXOPTS_HPP_INCLUDED
|
||
|
||
#include <cstring>
|
||
#include <cctype>
|
||
#include <exception>
|
||
#include <iostream>
|
||
#include <limits>
|
||
#include <map>
|
||
#include <memory>
|
||
#include <regex>
|
||
#include <sstream>
|
||
#include <string>
|
||
#include <unordered_map>
|
||
#include <unordered_set>
|
||
#include <vector>
|
||
|
||
#ifdef __cpp_lib_optional
|
||
#include <optional>
|
||
#define CXXOPTS_HAS_OPTIONAL
|
||
#endif
|
||
|
||
#ifndef CXXOPTS_VECTOR_DELIMITER
|
||
#define CXXOPTS_VECTOR_DELIMITER ','
|
||
#endif
|
||
|
||
#define CXXOPTS__VERSION_MAJOR 2
|
||
#define CXXOPTS__VERSION_MINOR 2
|
||
#define CXXOPTS__VERSION_PATCH 0
|
||
|
||
namespace cxxopts
|
||
{
|
||
static constexpr struct {
|
||
uint8_t major, minor, patch;
|
||
} version = {
|
||
CXXOPTS__VERSION_MAJOR,
|
||
CXXOPTS__VERSION_MINOR,
|
||
CXXOPTS__VERSION_PATCH
|
||
};
|
||
}
|
||
|
||
//when we ask cxxopts to use Unicode, help strings are processed using ICU,
|
||
//which results in the correct lengths being computed for strings when they
|
||
//are formatted for the help output
|
||
//it is necessary to make sure that <unicode/unistr.h> can be found by the
|
||
//compiler, and that icu-uc is linked in to the binary.
|
||
|
||
#ifdef CXXOPTS_USE_UNICODE
|
||
#include <unicode/unistr.h>
|
||
|
||
namespace cxxopts
|
||
{
|
||
typedef icu::UnicodeString String;
|
||
|
||
inline
|
||
String
|
||
toLocalString(std::string s)
|
||
{
|
||
return icu::UnicodeString::fromUTF8(std::move(s));
|
||
}
|
||
|
||
class UnicodeStringIterator : public
|
||
std::iterator<std::forward_iterator_tag, int32_t>
|
||
{
|
||
public:
|
||
|
||
UnicodeStringIterator(const icu::UnicodeString* string, int32_t pos)
|
||
: s(string)
|
||
, i(pos)
|
||
{
|
||
}
|
||
|
||
value_type
|
||
operator*() const
|
||
{
|
||
return s->char32At(i);
|
||
}
|
||
|
||
bool
|
||
operator==(const UnicodeStringIterator& rhs) const
|
||
{
|
||
return s == rhs.s && i == rhs.i;
|
||
}
|
||
|
||
bool
|
||
operator!=(const UnicodeStringIterator& rhs) const
|
||
{
|
||
return !(*this == rhs);
|
||
}
|
||
|
||
UnicodeStringIterator&
|
||
operator++()
|
||
{
|
||
++i;
|
||
return *this;
|
||
}
|
||
|
||
UnicodeStringIterator
|
||
operator+(int32_t v)
|
||
{
|
||
return UnicodeStringIterator(s, i + v);
|
||
}
|
||
|
||
private:
|
||
const icu::UnicodeString* s;
|
||
int32_t i;
|
||
};
|
||
|
||
inline
|
||
String&
|
||
stringAppend(String&s, String a)
|
||
{
|
||
return s.append(std::move(a));
|
||
}
|
||
|
||
inline
|
||
String&
|
||
stringAppend(String& s, int n, UChar32 c)
|
||
{
|
||
for (int i = 0; i != n; ++i)
|
||
{
|
||
s.append(c);
|
||
}
|
||
|
||
return s;
|
||
}
|
||
|
||
template <typename Iterator>
|
||
String&
|
||
stringAppend(String& s, Iterator begin, Iterator end)
|
||
{
|
||
while (begin != end)
|
||
{
|
||
s.append(*begin);
|
||
++begin;
|
||
}
|
||
|
||
return s;
|
||
}
|
||
|
||
inline
|
||
size_t
|
||
stringLength(const String& s)
|
||
{
|
||
return s.length();
|
||
}
|
||
|
||
inline
|
||
std::string
|
||
toUTF8String(const String& s)
|
||
{
|
||
std::string result;
|
||
s.toUTF8String(result);
|
||
|
||
return result;
|
||
}
|
||
|
||
inline
|
||
bool
|
||
empty(const String& s)
|
||
{
|
||
return s.isEmpty();
|
||
}
|
||
}
|
||
|
||
namespace std
|
||
{
|
||
inline
|
||
cxxopts::UnicodeStringIterator
|
||
begin(const icu::UnicodeString& s)
|
||
{
|
||
return cxxopts::UnicodeStringIterator(&s, 0);
|
||
}
|
||
|
||
inline
|
||
cxxopts::UnicodeStringIterator
|
||
end(const icu::UnicodeString& s)
|
||
{
|
||
return cxxopts::UnicodeStringIterator(&s, s.length());
|
||
}
|
||
}
|
||
|
||
//ifdef CXXOPTS_USE_UNICODE
|
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#else
|
||
|
||
namespace cxxopts
|
||
{
|
||
typedef std::string String;
|
||
|
||
template <typename T>
|
||
T
|
||
toLocalString(T&& t)
|
||
{
|
||
return std::forward<T>(t);
|
||
}
|
||
|
||
inline
|
||
size_t
|
||
stringLength(const String& s)
|
||
{
|
||
return s.length();
|
||
}
|
||
|
||
inline
|
||
String&
|
||
stringAppend(String&s, String a)
|
||
{
|
||
return s.append(std::move(a));
|
||
}
|
||
|
||
inline
|
||
String&
|
||
stringAppend(String& s, size_t n, char c)
|
||
{
|
||
return s.append(n, c);
|
||
}
|
||
|
||
template <typename Iterator>
|
||
String&
|
||
stringAppend(String& s, Iterator begin, Iterator end)
|
||
{
|
||
return s.append(begin, end);
|
||
}
|
||
|
||
template <typename T>
|
||
std::string
|
||
toUTF8String(T&& t)
|
||
{
|
||
return std::forward<T>(t);
|
||
}
|
||
|
||
inline
|
||
bool
|
||
empty(const std::string& s)
|
||
{
|
||
return s.empty();
|
||
}
|
||
}
|
||
|
||
//ifdef CXXOPTS_USE_UNICODE
|
||
#endif
|
||
|
||
namespace cxxopts
|
||
{
|
||
namespace
|
||
{
|
||
#ifdef _WIN32
|
||
const std::string LQUOTE("\'");
|
||
const std::string RQUOTE("\'");
|
||
#else
|
||
const std::string LQUOTE("‘");
|
||
const std::string RQUOTE("’");
|
||
#endif
|
||
}
|
||
|
||
class Value : public std::enable_shared_from_this<Value>
|
||
{
|
||
public:
|
||
|
||
virtual ~Value() = default;
|
||
|
||
virtual
|
||
std::shared_ptr<Value>
|
||
clone() const = 0;
|
||
|
||
virtual void
|
||
parse(const std::string& text) const = 0;
|
||
|
||
virtual void
|
||
parse() const = 0;
|
||
|
||
virtual bool
|
||
has_default() const = 0;
|
||
|
||
virtual bool
|
||
is_container() const = 0;
|
||
|
||
virtual bool
|
||
has_implicit() const = 0;
|
||
|
||
virtual std::string
|
||
get_default_value() const = 0;
|
||
|
||
virtual std::string
|
||
get_implicit_value() const = 0;
|
||
|
||
virtual std::shared_ptr<Value>
|
||
default_value(const std::string& value) = 0;
|
||
|
||
virtual std::shared_ptr<Value>
|
||
implicit_value(const std::string& value) = 0;
|
||
|
||
virtual std::shared_ptr<Value>
|
||
no_implicit_value() = 0;
|
||
|
||
virtual bool
|
||
is_boolean() const = 0;
|
||
};
|
||
|
||
class OptionException : public std::exception
|
||
{
|
||
public:
|
||
OptionException(const std::string& message)
|
||
: m_message(message)
|
||
{
|
||
}
|
||
|
||
virtual const char*
|
||
what() const noexcept
|
||
{
|
||
return m_message.c_str();
|
||
}
|
||
|
||
private:
|
||
std::string m_message;
|
||
};
|
||
|
||
class OptionSpecException : public OptionException
|
||
{
|
||
public:
|
||
|
||
OptionSpecException(const std::string& message)
|
||
: OptionException(message)
|
||
{
|
||
}
|
||
};
|
||
|
||
class OptionParseException : public OptionException
|
||
{
|
||
public:
|
||
OptionParseException(const std::string& message)
|
||
: OptionException(message)
|
||
{
|
||
}
|
||
};
|
||
|
||
class option_exists_error : public OptionSpecException
|
||
{
|
||
public:
|
||
option_exists_error(const std::string& option)
|
||
: OptionSpecException("Option " + LQUOTE + option + RQUOTE + " already exists")
|
||
{
|
||
}
|
||
};
|
||
|
||
class invalid_option_format_error : public OptionSpecException
|
||
{
|
||
public:
|
||
invalid_option_format_error(const std::string& format)
|
||
: OptionSpecException("Invalid option format " + LQUOTE + format + RQUOTE)
|
||
{
|
||
}
|
||
};
|
||
|
||
class option_syntax_exception : public OptionParseException {
|
||
public:
|
||
option_syntax_exception(const std::string& text)
|
||
: OptionParseException("Argument " + LQUOTE + text + RQUOTE +
|
||
" starts with a - but has incorrect syntax")
|
||
{
|
||
}
|
||
};
|
||
|
||
class option_not_exists_exception : public OptionParseException
|
||
{
|
||
public:
|
||
option_not_exists_exception(const std::string& option)
|
||
: OptionParseException("Option " + LQUOTE + option + RQUOTE + " does not exist")
|
||
{
|
||
}
|
||
};
|
||
|
||
class missing_argument_exception : public OptionParseException
|
||
{
|
||
public:
|
||
missing_argument_exception(const std::string& option)
|
||
: OptionParseException(
|
||
"Option " + LQUOTE + option + RQUOTE + " is missing an argument"
|
||
)
|
||
{
|
||
}
|
||
};
|
||
|
||
class option_requires_argument_exception : public OptionParseException
|
||
{
|
||
public:
|
||
option_requires_argument_exception(const std::string& option)
|
||
: OptionParseException(
|
||
"Option " + LQUOTE + option + RQUOTE + " requires an argument"
|
||
)
|
||
{
|
||
}
|
||
};
|
||
|
||
class option_not_has_argument_exception : public OptionParseException
|
||
{
|
||
public:
|
||
option_not_has_argument_exception
|
||
(
|
||
const std::string& option,
|
||
const std::string& arg
|
||
)
|
||
: OptionParseException(
|
||
"Option " + LQUOTE + option + RQUOTE +
|
||
" does not take an argument, but argument " +
|
||
LQUOTE + arg + RQUOTE + " given"
|
||
)
|
||
{
|
||
}
|
||
};
|
||
|
||
class option_not_present_exception : public OptionParseException
|
||
{
|
||
public:
|
||
option_not_present_exception(const std::string& option)
|
||
: OptionParseException("Option " + LQUOTE + option + RQUOTE + " not present")
|
||
{
|
||
}
|
||
};
|
||
|
||
class argument_incorrect_type : public OptionParseException
|
||
{
|
||
public:
|
||
argument_incorrect_type
|
||
(
|
||
const std::string& arg
|
||
)
|
||
: OptionParseException(
|
||
"Argument " + LQUOTE + arg + RQUOTE + " failed to parse"
|
||
)
|
||
{
|
||
}
|
||
};
|
||
|
||
class option_required_exception : public OptionParseException
|
||
{
|
||
public:
|
||
option_required_exception(const std::string& option)
|
||
: OptionParseException(
|
||
"Option " + LQUOTE + option + RQUOTE + " is required but not present"
|
||
)
|
||
{
|
||
}
|
||
};
|
||
|
||
namespace values
|
||
{
|
||
namespace
|
||
{
|
||
std::basic_regex<char> integer_pattern
|
||
("(-)?(0x)?([0-9a-zA-Z]+)|((0x)?0)");
|
||
std::basic_regex<char> truthy_pattern
|
||
("(t|T)(rue)?|1");
|
||
std::basic_regex<char> falsy_pattern
|
||
("(f|F)(alse)?|0");
|
||
}
|
||
|
||
namespace detail
|
||
{
|
||
template <typename T, bool B>
|
||
struct SignedCheck;
|
||
|
||
template <typename T>
|
||
struct SignedCheck<T, true>
|
||
{
|
||
template <typename U>
|
||
void
|
||
operator()(bool negative, U u, const std::string& text)
|
||
{
|
||
if (negative)
|
||
{
|
||
if (u > static_cast<U>((std::numeric_limits<T>::min)()))
|
||
{
|
||
throw argument_incorrect_type(text);
|
||
}
|
||
}
|
||
else
|
||
{
|
||
if (u > static_cast<U>((std::numeric_limits<T>::max)()))
|
||
{
|
||
throw argument_incorrect_type(text);
|
||
}
|
||
}
|
||
}
|
||
};
|
||
|
||
template <typename T>
|
||
struct SignedCheck<T, false>
|
||
{
|
||
template <typename U>
|
||
void
|
||
operator()(bool, U, const std::string&) {}
|
||
};
|
||
|
||
template <typename T, typename U>
|
||
void
|
||
check_signed_range(bool negative, U value, const std::string& text)
|
||
{
|
||
SignedCheck<T, std::numeric_limits<T>::is_signed>()(negative, value, text);
|
||
}
|
||
}
|
||
|
||
template <typename R, typename T>
|
||
R
|
||
checked_negate(T&& t, const std::string&, std::true_type)
|
||
{
|
||
// if we got to here, then `t` is a positive number that fits into
|
||
// `R`. So to avoid MSVC C4146, we first cast it to `R`.
|
||
// See https://github.com/jarro2783/cxxopts/issues/62 for more details.
|
||
return -static_cast<R>(t-1)-1;
|
||
}
|
||
|
||
template <typename R, typename T>
|
||
T
|
||
checked_negate(T&&, const std::string& text, std::false_type)
|
||
{
|
||
throw argument_incorrect_type(text);
|
||
}
|
||
|
||
template <typename T>
|
||
void
|
||
integer_parser(const std::string& text, T& value)
|
||
{
|
||
std::smatch match;
|
||
std::regex_match(text, match, integer_pattern);
|
||
|
||
if (match.length() == 0)
|
||
{
|
||
throw argument_incorrect_type(text);
|
||
}
|
||
|
||
if (match.length(4) > 0)
|
||
{
|
||
value = 0;
|
||
return;
|
||
}
|
||
|
||
using US = typename std::make_unsigned<T>::type;
|
||
|
||
constexpr bool is_signed = std::numeric_limits<T>::is_signed;
|
||
const bool negative = match.length(1) > 0;
|
||
const uint8_t base = match.length(2) > 0 ? 16 : 10;
|
||
|
||
auto value_match = match[3];
|
||
|
||
US result = 0;
|
||
|
||
for (auto iter = value_match.first; iter != value_match.second; ++iter)
|
||
{
|
||
US digit = 0;
|
||
|
||
if (*iter >= '0' && *iter <= '9')
|
||
{
|
||
digit = static_cast<US>(*iter - '0');
|
||
}
|
||
else if (base == 16 && *iter >= 'a' && *iter <= 'f')
|
||
{
|
||
digit = static_cast<US>(*iter - 'a' + 10);
|
||
}
|
||
else if (base == 16 && *iter >= 'A' && *iter <= 'F')
|
||
{
|
||
digit = static_cast<US>(*iter - 'A' + 10);
|
||
}
|
||
else
|
||
{
|
||
throw argument_incorrect_type(text);
|
||
}
|
||
|
||
US next = result * base + digit;
|
||
if (result > next)
|
||
{
|
||
throw argument_incorrect_type(text);
|
||
}
|
||
|
||
result = next;
|
||
}
|
||
|
||
detail::check_signed_range<T>(negative, result, text);
|
||
|
||
if (negative)
|
||
{
|
||
value = checked_negate<T>(result,
|
||
text,
|
||
std::integral_constant<bool, is_signed>());
|
||
}
|
||
else
|
||
{
|
||
value = static_cast<T>(result);
|
||
}
|
||
}
|
||
|
||
template <typename T>
|
||
void stringstream_parser(const std::string& text, T& value)
|
||
{
|
||
std::stringstream in(text);
|
||
in >> value;
|
||
if (!in) {
|
||
throw argument_incorrect_type(text);
|
||
}
|
||
}
|
||
|
||
inline
|
||
void
|
||
parse_value(const std::string& text, uint8_t& value)
|
||
{
|
||
integer_parser(text, value);
|
||
}
|
||
|
||
inline
|
||
void
|
||
parse_value(const std::string& text, int8_t& value)
|
||
{
|
||
integer_parser(text, value);
|
||
}
|
||
|
||
inline
|
||
void
|
||
parse_value(const std::string& text, uint16_t& value)
|
||
{
|
||
integer_parser(text, value);
|
||
}
|
||
|
||
inline
|
||
void
|
||
parse_value(const std::string& text, int16_t& value)
|
||
{
|
||
integer_parser(text, value);
|
||
}
|
||
|
||
inline
|
||
void
|
||
parse_value(const std::string& text, uint32_t& value)
|
||
{
|
||
integer_parser(text, value);
|
||
}
|
||
|
||
inline
|
||
void
|
||
parse_value(const std::string& text, int32_t& value)
|
||
{
|
||
integer_parser(text, value);
|
||
}
|
||
|
||
inline
|
||
void
|
||
parse_value(const std::string& text, uint64_t& value)
|
||
{
|
||
integer_parser(text, value);
|
||
}
|
||
|
||
inline
|
||
void
|
||
parse_value(const std::string& text, int64_t& value)
|
||
{
|
||
integer_parser(text, value);
|
||
}
|
||
|
||
inline
|
||
void
|
||
parse_value(const std::string& text, bool& value)
|
||
{
|
||
std::smatch result;
|
||
std::regex_match(text, result, truthy_pattern);
|
||
|
||
if (!result.empty())
|
||
{
|
||
value = true;
|
||
return;
|
||
}
|
||
|
||
std::regex_match(text, result, falsy_pattern);
|
||
if (!result.empty())
|
||
{
|
||
value = false;
|
||
return;
|
||
}
|
||
|
||
throw argument_incorrect_type(text);
|
||
}
|
||
|
||
inline
|
||
void
|
||
parse_value(const std::string& text, std::string& value)
|
||
{
|
||
value = text;
|
||
}
|
||
|
||
// The fallback parser. It uses the stringstream parser to parse all types
|
||
// that have not been overloaded explicitly. It has to be placed in the
|
||
// source code before all other more specialized templates.
|
||
template <typename T>
|
||
void
|
||
parse_value(const std::string& text, T& value) {
|
||
stringstream_parser(text, value);
|
||
}
|
||
|
||
template <typename T>
|
||
void
|
||
parse_value(const std::string& text, std::vector<T>& value)
|
||
{
|
||
std::stringstream in(text);
|
||
std::string token;
|
||
while(in.eof() == false && std::getline(in, token, CXXOPTS_VECTOR_DELIMITER)) {
|
||
T v;
|
||
parse_value(token, v);
|
||
value.emplace_back(std::move(v));
|
||
}
|
||
}
|
||
|
||
#ifdef CXXOPTS_HAS_OPTIONAL
|
||
template <typename T>
|
||
void
|
||
parse_value(const std::string& text, std::optional<T>& value)
|
||
{
|
||
T result;
|
||
parse_value(text, result);
|
||
value = std::move(result);
|
||
}
|
||
#endif
|
||
|
||
template <typename T>
|
||
struct type_is_container
|
||
{
|
||
static constexpr bool value = false;
|
||
};
|
||
|
||
template <typename T>
|
||
struct type_is_container<std::vector<T>>
|
||
{
|
||
static constexpr bool value = true;
|
||
};
|
||
|
||
template <typename T>
|
||
class abstract_value : public Value
|
||
{
|
||
using Self = abstract_value<T>;
|
||
|
||
public:
|
||
abstract_value()
|
||
: m_result(std::make_shared<T>())
|
||
, m_store(m_result.get())
|
||
{
|
||
}
|
||
|
||
abstract_value(T* t)
|
||
: m_store(t)
|
||
{
|
||
}
|
||
|
||
virtual ~abstract_value() = default;
|
||
|
||
abstract_value(const abstract_value& rhs)
|
||
{
|
||
if (rhs.m_result)
|
||
{
|
||
m_result = std::make_shared<T>();
|
||
m_store = m_result.get();
|
||
}
|
||
else
|
||
{
|
||
m_store = rhs.m_store;
|
||
}
|
||
|
||
m_default = rhs.m_default;
|
||
m_implicit = rhs.m_implicit;
|
||
m_default_value = rhs.m_default_value;
|
||
m_implicit_value = rhs.m_implicit_value;
|
||
}
|
||
|
||
void
|
||
parse(const std::string& text) const
|
||
{
|
||
parse_value(text, *m_store);
|
||
}
|
||
|
||
bool
|
||
is_container() const
|
||
{
|
||
return type_is_container<T>::value;
|
||
}
|
||
|
||
void
|
||
parse() const
|
||
{
|
||
parse_value(m_default_value, *m_store);
|
||
}
|
||
|
||
bool
|
||
has_default() const
|
||
{
|
||
return m_default;
|
||
}
|
||
|
||
bool
|
||
has_implicit() const
|
||
{
|
||
return m_implicit;
|
||
}
|
||
|
||
std::shared_ptr<Value>
|
||
default_value(const std::string& value)
|
||
{
|
||
m_default = true;
|
||
m_default_value = value;
|
||
return shared_from_this();
|
||
}
|
||
|
||
std::shared_ptr<Value>
|
||
implicit_value(const std::string& value)
|
||
{
|
||
m_implicit = true;
|
||
m_implicit_value = value;
|
||
return shared_from_this();
|
||
}
|
||
|
||
std::shared_ptr<Value>
|
||
no_implicit_value()
|
||
{
|
||
m_implicit = false;
|
||
return shared_from_this();
|
||
}
|
||
|
||
std::string
|
||
get_default_value() const
|
||
{
|
||
return m_default_value;
|
||
}
|
||
|
||
std::string
|
||
get_implicit_value() const
|
||
{
|
||
return m_implicit_value;
|
||
}
|
||
|
||
bool
|
||
is_boolean() const
|
||
{
|
||
return std::is_same<T, bool>::value;
|
||
}
|
||
|
||
const T&
|
||
get() const
|
||
{
|
||
if (m_store == nullptr)
|
||
{
|
||
return *m_result;
|
||
}
|
||
else
|
||
{
|
||
return *m_store;
|
||
}
|
||
}
|
||
|
||
protected:
|
||
std::shared_ptr<T> m_result;
|
||
T* m_store;
|
||
|
||
bool m_default = false;
|
||
bool m_implicit = false;
|
||
|
||
std::string m_default_value;
|
||
std::string m_implicit_value;
|
||
};
|
||
|
||
template <typename T>
|
||
class standard_value : public abstract_value<T>
|
||
{
|
||
public:
|
||
using abstract_value<T>::abstract_value;
|
||
|
||
std::shared_ptr<Value>
|
||
clone() const
|
||
{
|
||
return std::make_shared<standard_value<T>>(*this);
|
||
}
|
||
};
|
||
|
||
template <>
|
||
class standard_value<bool> : public abstract_value<bool>
|
||
{
|
||
public:
|
||
~standard_value() = default;
|
||
|
||
standard_value()
|
||
{
|
||
set_default_and_implicit();
|
||
}
|
||
|
||
standard_value(bool* b)
|
||
: abstract_value(b)
|
||
{
|
||
set_default_and_implicit();
|
||
}
|
||
|
||
std::shared_ptr<Value>
|
||
clone() const
|
||
{
|
||
return std::make_shared<standard_value<bool>>(*this);
|
||
}
|
||
|
||
private:
|
||
|
||
void
|
||
set_default_and_implicit()
|
||
{
|
||
m_default = true;
|
||
m_default_value = "false";
|
||
m_implicit = true;
|
||
m_implicit_value = "true";
|
||
}
|
||
};
|
||
}
|
||
|
||
template <typename T>
|
||
std::shared_ptr<Value>
|
||
value()
|
||
{
|
||
return std::make_shared<values::standard_value<T>>();
|
||
}
|
||
|
||
template <typename T>
|
||
std::shared_ptr<Value>
|
||
value(T& t)
|
||
{
|
||
return std::make_shared<values::standard_value<T>>(&t);
|
||
}
|
||
|
||
class OptionAdder;
|
||
|
||
class OptionDetails
|
||
{
|
||
public:
|
||
OptionDetails
|
||
(
|
||
const std::string& short_,
|
||
const std::string& long_,
|
||
const String& desc,
|
||
std::shared_ptr<const Value> val
|
||
)
|
||
: m_short(short_)
|
||
, m_long(long_)
|
||
, m_desc(desc)
|
||
, m_value(val)
|
||
, m_count(0)
|
||
{
|
||
}
|
||
|
||
OptionDetails(const OptionDetails& rhs)
|
||
: m_desc(rhs.m_desc)
|
||
, m_count(rhs.m_count)
|
||
{
|
||
m_value = rhs.m_value->clone();
|
||
}
|
||
|
||
OptionDetails(OptionDetails&& rhs) = default;
|
||
|
||
const String&
|
||
description() const
|
||
{
|
||
return m_desc;
|
||
}
|
||
|
||
const Value& value() const {
|
||
return *m_value;
|
||
}
|
||
|
||
std::shared_ptr<Value>
|
||
make_storage() const
|
||
{
|
||
return m_value->clone();
|
||
}
|
||
|
||
const std::string&
|
||
short_name() const
|
||
{
|
||
return m_short;
|
||
}
|
||
|
||
const std::string&
|
||
long_name() const
|
||
{
|
||
return m_long;
|
||
}
|
||
|
||
private:
|
||
std::string m_short;
|
||
std::string m_long;
|
||
String m_desc;
|
||
std::shared_ptr<const Value> m_value;
|
||
int m_count;
|
||
};
|
||
|
||
struct HelpOptionDetails
|
||
{
|
||
std::string s;
|
||
std::string l;
|
||
String desc;
|
||
bool has_default;
|
||
std::string default_value;
|
||
bool has_implicit;
|
||
std::string implicit_value;
|
||
std::string arg_help;
|
||
bool is_container;
|
||
bool is_boolean;
|
||
};
|
||
|
||
struct HelpGroupDetails
|
||
{
|
||
std::string name;
|
||
std::string description;
|
||
std::vector<HelpOptionDetails> options;
|
||
};
|
||
|
||
class OptionValue
|
||
{
|
||
public:
|
||
void
|
||
parse
|
||
(
|
||
std::shared_ptr<const OptionDetails> details,
|
||
const std::string& text
|
||
)
|
||
{
|
||
ensure_value(details);
|
||
++m_count;
|
||
m_value->parse(text);
|
||
}
|
||
|
||
void
|
||
parse_default(std::shared_ptr<const OptionDetails> details)
|
||
{
|
||
ensure_value(details);
|
||
m_value->parse();
|
||
}
|
||
|
||
size_t
|
||
count() const
|
||
{
|
||
return m_count;
|
||
}
|
||
|
||
template <typename T>
|
||
const T&
|
||
as() const
|
||
{
|
||
if (m_value == nullptr) {
|
||
throw std::domain_error("No value");
|
||
}
|
||
|
||
#ifdef CXXOPTS_NO_RTTI
|
||
return static_cast<const values::standard_value<T>&>(*m_value).get();
|
||
#else
|
||
return dynamic_cast<const values::standard_value<T>&>(*m_value).get();
|
||
#endif
|
||
}
|
||
|
||
private:
|
||
void
|
||
ensure_value(std::shared_ptr<const OptionDetails> details)
|
||
{
|
||
if (m_value == nullptr)
|
||
{
|
||
m_value = details->make_storage();
|
||
}
|
||
}
|
||
|
||
std::shared_ptr<Value> m_value;
|
||
size_t m_count = 0;
|
||
};
|
||
|
||
class KeyValue
|
||
{
|
||
public:
|
||
KeyValue(std::string key_, std::string value_)
|
||
: m_key(std::move(key_))
|
||
, m_value(std::move(value_))
|
||
{
|
||
}
|
||
|
||
const
|
||
std::string&
|
||
key() const
|
||
{
|
||
return m_key;
|
||
}
|
||
|
||
const
|
||
std::string&
|
||
value() const
|
||
{
|
||
return m_value;
|
||
}
|
||
|
||
template <typename T>
|
||
T
|
||
as() const
|
||
{
|
||
T result;
|
||
values::parse_value(m_value, result);
|
||
return result;
|
||
}
|
||
|
||
private:
|
||
std::string m_key;
|
||
std::string m_value;
|
||
};
|
||
|
||
class ParseResult
|
||
{
|
||
public:
|
||
|
||
ParseResult(
|
||
const std::shared_ptr<
|
||
std::unordered_map<std::string, std::shared_ptr<OptionDetails>>
|
||
>,
|
||
std::vector<std::string>,
|
||
bool allow_unrecognised,
|
||
int&, char**&);
|
||
|
||
size_t
|
||
count(const std::string& o) const
|
||
{
|
||
auto iter = m_options->find(o);
|
||
if (iter == m_options->end())
|
||
{
|
||
return 0;
|
||
}
|
||
|
||
auto riter = m_results.find(iter->second);
|
||
|
||
return riter->second.count();
|
||
}
|
||
|
||
const OptionValue&
|
||
operator[](const std::string& option) const
|
||
{
|
||
auto iter = m_options->find(option);
|
||
|
||
if (iter == m_options->end())
|
||
{
|
||
throw option_not_present_exception(option);
|
||
}
|
||
|
||
auto riter = m_results.find(iter->second);
|
||
|
||
return riter->second;
|
||
}
|
||
|
||
const std::vector<KeyValue>&
|
||
arguments() const
|
||
{
|
||
return m_sequential;
|
||
}
|
||
|
||
private:
|
||
|
||
void
|
||
parse(int& argc, char**& argv);
|
||
|
||
void
|
||
add_to_option(const std::string& option, const std::string& arg);
|
||
|
||
bool
|
||
consume_positional(std::string a);
|
||
|
||
void
|
||
parse_option
|
||
(
|
||
std::shared_ptr<OptionDetails> value,
|
||
const std::string& name,
|
||
const std::string& arg = ""
|
||
);
|
||
|
||
void
|
||
parse_default(std::shared_ptr<OptionDetails> details);
|
||
|
||
void
|
||
checked_parse_arg
|
||
(
|
||
int argc,
|
||
char* argv[],
|
||
int& current,
|
||
std::shared_ptr<OptionDetails> value,
|
||
const std::string& name
|
||
);
|
||
|
||
const std::shared_ptr<
|
||
std::unordered_map<std::string, std::shared_ptr<OptionDetails>>
|
||
> m_options;
|
||
std::vector<std::string> m_positional;
|
||
std::vector<std::string>::iterator m_next_positional;
|
||
std::unordered_set<std::string> m_positional_set;
|
||
std::unordered_map<std::shared_ptr<OptionDetails>, OptionValue> m_results;
|
||
|
||
bool m_allow_unrecognised;
|
||
|
||
std::vector<KeyValue> m_sequential;
|
||
};
|
||
|
||
class Options
|
||
{
|
||
typedef std::unordered_map<std::string, std::shared_ptr<OptionDetails>>
|
||
OptionMap;
|
||
public:
|
||
|
||
Options(std::string program, std::string help_string = "")
|
||
: m_program(std::move(program))
|
||
, m_help_string(toLocalString(std::move(help_string)))
|
||
, m_custom_help("[OPTION...]")
|
||
, m_positional_help("positional parameters")
|
||
, m_show_positional(false)
|
||
, m_allow_unrecognised(false)
|
||
, m_options(std::make_shared<OptionMap>())
|
||
, m_next_positional(m_positional.end())
|
||
{
|
||
}
|
||
|
||
Options&
|
||
positional_help(std::string help_text)
|
||
{
|
||
m_positional_help = std::move(help_text);
|
||
return *this;
|
||
}
|
||
|
||
Options&
|
||
custom_help(std::string help_text)
|
||
{
|
||
m_custom_help = std::move(help_text);
|
||
return *this;
|
||
}
|
||
|
||
Options&
|
||
show_positional_help()
|
||
{
|
||
m_show_positional = true;
|
||
return *this;
|
||
}
|
||
|
||
Options&
|
||
allow_unrecognised_options()
|
||
{
|
||
m_allow_unrecognised = true;
|
||
return *this;
|
||
}
|
||
|
||
ParseResult
|
||
parse(int& argc, char**& argv);
|
||
|
||
OptionAdder
|
||
add_options(std::string group = "");
|
||
|
||
void
|
||
add_option
|
||
(
|
||
const std::string& group,
|
||
const std::string& s,
|
||
const std::string& l,
|
||
std::string desc,
|
||
std::shared_ptr<const Value> value,
|
||
std::string arg_help
|
||
);
|
||
|
||
//parse positional arguments into the given option
|
||
void
|
||
parse_positional(std::string option);
|
||
|
||
void
|
||
parse_positional(std::vector<std::string> options);
|
||
|
||
void
|
||
parse_positional(std::initializer_list<std::string> options);
|
||
|
||
template <typename Iterator>
|
||
void
|
||
parse_positional(Iterator begin, Iterator end) {
|
||
parse_positional(std::vector<std::string>{begin, end});
|
||
}
|
||
|
||
std::string
|
||
help(const std::vector<std::string>& groups = {}) const;
|
||
|
||
const std::vector<std::string>
|
||
groups() const;
|
||
|
||
const HelpGroupDetails&
|
||
group_help(const std::string& group) const;
|
||
|
||
private:
|
||
|
||
void
|
||
add_one_option
|
||
(
|
||
const std::string& option,
|
||
std::shared_ptr<OptionDetails> details
|
||
);
|
||
|
||
String
|
||
help_one_group(const std::string& group) const;
|
||
|
||
void
|
||
generate_group_help
|
||
(
|
||
String& result,
|
||
const std::vector<std::string>& groups
|
||
) const;
|
||
|
||
void
|
||
generate_all_groups_help(String& result) const;
|
||
|
||
std::string m_program;
|
||
String m_help_string;
|
||
std::string m_custom_help;
|
||
std::string m_positional_help;
|
||
bool m_show_positional;
|
||
bool m_allow_unrecognised;
|
||
|
||
std::shared_ptr<OptionMap> m_options;
|
||
std::vector<std::string> m_positional;
|
||
std::vector<std::string>::iterator m_next_positional;
|
||
std::unordered_set<std::string> m_positional_set;
|
||
|
||
//mapping from groups to help options
|
||
std::map<std::string, HelpGroupDetails> m_help;
|
||
};
|
||
|
||
class OptionAdder
|
||
{
|
||
public:
|
||
|
||
OptionAdder(Options& options, std::string group)
|
||
: m_options(options), m_group(std::move(group))
|
||
{
|
||
}
|
||
|
||
OptionAdder&
|
||
operator()
|
||
(
|
||
const std::string& opts,
|
||
const std::string& desc,
|
||
std::shared_ptr<const Value> value
|
||
= ::cxxopts::value<bool>(),
|
||
std::string arg_help = ""
|
||
);
|
||
|
||
private:
|
||
Options& m_options;
|
||
std::string m_group;
|
||
};
|
||
|
||
namespace
|
||
{
|
||
constexpr int OPTION_LONGEST = 30;
|
||
constexpr int OPTION_DESC_GAP = 2;
|
||
|
||
std::basic_regex<char> option_matcher
|
||
("--([[:alnum:]][-_[:alnum:]]+)(=(.*))?|-([[:alnum:]]+)");
|
||
|
||
std::basic_regex<char> option_specifier
|
||
("(([[:alnum:]]),)?[ ]*([[:alnum:]][-_[:alnum:]]*)?");
|
||
|
||
String
|
||
format_option
|
||
(
|
||
const HelpOptionDetails& o
|
||
)
|
||
{
|
||
auto& s = o.s;
|
||
auto& l = o.l;
|
||
|
||
String result = " ";
|
||
|
||
if (s.size() > 0)
|
||
{
|
||
result += "-" + toLocalString(s) + ",";
|
||
}
|
||
else
|
||
{
|
||
result += " ";
|
||
}
|
||
|
||
if (l.size() > 0)
|
||
{
|
||
result += " --" + toLocalString(l);
|
||
}
|
||
|
||
auto arg = o.arg_help.size() > 0 ? toLocalString(o.arg_help) : "arg";
|
||
|
||
if (!o.is_boolean)
|
||
{
|
||
if (o.has_implicit)
|
||
{
|
||
result += " [=" + arg + "(=" + toLocalString(o.implicit_value) + ")]";
|
||
}
|
||
else
|
||
{
|
||
result += " " + arg;
|
||
}
|
||
}
|
||
|
||
return result;
|
||
}
|
||
|
||
String
|
||
format_description
|
||
(
|
||
const HelpOptionDetails& o,
|
||
size_t start,
|
||
size_t width
|
||
)
|
||
{
|
||
auto desc = o.desc;
|
||
|
||
if (o.has_default && (!o.is_boolean || o.default_value != "false"))
|
||
{
|
||
desc += toLocalString(" (default: " + o.default_value + ")");
|
||
}
|
||
|
||
String result;
|
||
|
||
auto current = std::begin(desc);
|
||
auto startLine = current;
|
||
auto lastSpace = current;
|
||
|
||
auto size = size_t{};
|
||
|
||
while (current != std::end(desc))
|
||
{
|
||
if (*current == ' ')
|
||
{
|
||
lastSpace = current;
|
||
}
|
||
|
||
if (*current == '\n')
|
||
{
|
||
startLine = current + 1;
|
||
lastSpace = startLine;
|
||
}
|
||
else if (size > width)
|
||
{
|
||
if (lastSpace == startLine)
|
||
{
|
||
stringAppend(result, startLine, current + 1);
|
||
stringAppend(result, "\n");
|
||
stringAppend(result, start, ' ');
|
||
startLine = current + 1;
|
||
lastSpace = startLine;
|
||
}
|
||
else
|
||
{
|
||
stringAppend(result, startLine, lastSpace);
|
||
stringAppend(result, "\n");
|
||
stringAppend(result, start, ' ');
|
||
startLine = lastSpace + 1;
|
||
}
|
||
size = 0;
|
||
}
|
||
else
|
||
{
|
||
++size;
|
||
}
|
||
|
||
++current;
|
||
}
|
||
|
||
//append whatever is left
|
||
stringAppend(result, startLine, current);
|
||
|
||
return result;
|
||
}
|
||
}
|
||
|
||
inline
|
||
ParseResult::ParseResult
|
||
(
|
||
const std::shared_ptr<
|
||
std::unordered_map<std::string, std::shared_ptr<OptionDetails>>
|
||
> options,
|
||
std::vector<std::string> positional,
|
||
bool allow_unrecognised,
|
||
int& argc, char**& argv
|
||
)
|
||
: m_options(options)
|
||
, m_positional(std::move(positional))
|
||
, m_next_positional(m_positional.begin())
|
||
, m_allow_unrecognised(allow_unrecognised)
|
||
{
|
||
parse(argc, argv);
|
||
}
|
||
|
||
inline
|
||
OptionAdder
|
||
Options::add_options(std::string group)
|
||
{
|
||
return OptionAdder(*this, std::move(group));
|
||
}
|
||
|
||
inline
|
||
OptionAdder&
|
||
OptionAdder::operator()
|
||
(
|
||
const std::string& opts,
|
||
const std::string& desc,
|
||
std::shared_ptr<const Value> value,
|
||
std::string arg_help
|
||
)
|
||
{
|
||
std::match_results<const char*> result;
|
||
std::regex_match(opts.c_str(), result, option_specifier);
|
||
|
||
if (result.empty())
|
||
{
|
||
throw invalid_option_format_error(opts);
|
||
}
|
||
|
||
const auto& short_match = result[2];
|
||
const auto& long_match = result[3];
|
||
|
||
if (!short_match.length() && !long_match.length())
|
||
{
|
||
throw invalid_option_format_error(opts);
|
||
} else if (long_match.length() == 1 && short_match.length())
|
||
{
|
||
throw invalid_option_format_error(opts);
|
||
}
|
||
|
||
auto option_names = []
|
||
(
|
||
const std::sub_match<const char*>& short_,
|
||
const std::sub_match<const char*>& long_
|
||
)
|
||
{
|
||
if (long_.length() == 1)
|
||
{
|
||
return std::make_tuple(long_.str(), short_.str());
|
||
}
|
||
else
|
||
{
|
||
return std::make_tuple(short_.str(), long_.str());
|
||
}
|
||
}(short_match, long_match);
|
||
|
||
m_options.add_option
|
||
(
|
||
m_group,
|
||
std::get<0>(option_names),
|
||
std::get<1>(option_names),
|
||
desc,
|
||
value,
|
||
std::move(arg_help)
|
||
);
|
||
|
||
return *this;
|
||
}
|
||
|
||
inline
|
||
void
|
||
ParseResult::parse_default(std::shared_ptr<OptionDetails> details)
|
||
{
|
||
m_results[details].parse_default(details);
|
||
}
|
||
|
||
inline
|
||
void
|
||
ParseResult::parse_option
|
||
(
|
||
std::shared_ptr<OptionDetails> value,
|
||
const std::string& /*name*/,
|
||
const std::string& arg
|
||
)
|
||
{
|
||
auto& result = m_results[value];
|
||
result.parse(value, arg);
|
||
|
||
m_sequential.emplace_back(value->long_name(), arg);
|
||
}
|
||
|
||
inline
|
||
void
|
||
ParseResult::checked_parse_arg
|
||
(
|
||
int argc,
|
||
char* argv[],
|
||
int& current,
|
||
std::shared_ptr<OptionDetails> value,
|
||
const std::string& name
|
||
)
|
||
{
|
||
if (current + 1 >= argc)
|
||
{
|
||
if (value->value().has_implicit())
|
||
{
|
||
parse_option(value, name, value->value().get_implicit_value());
|
||
}
|
||
else
|
||
{
|
||
throw missing_argument_exception(name);
|
||
}
|
||
}
|
||
else
|
||
{
|
||
if (value->value().has_implicit())
|
||
{
|
||
parse_option(value, name, value->value().get_implicit_value());
|
||
}
|
||
else
|
||
{
|
||
parse_option(value, name, argv[current + 1]);
|
||
++current;
|
||
}
|
||
}
|
||
}
|
||
|
||
inline
|
||
void
|
||
ParseResult::add_to_option(const std::string& option, const std::string& arg)
|
||
{
|
||
auto iter = m_options->find(option);
|
||
|
||
if (iter == m_options->end())
|
||
{
|
||
throw option_not_exists_exception(option);
|
||
}
|
||
|
||
parse_option(iter->second, option, arg);
|
||
}
|
||
|
||
inline
|
||
bool
|
||
ParseResult::consume_positional(std::string a)
|
||
{
|
||
while (m_next_positional != m_positional.end())
|
||
{
|
||
auto iter = m_options->find(*m_next_positional);
|
||
if (iter != m_options->end())
|
||
{
|
||
auto& result = m_results[iter->second];
|
||
if (!iter->second->value().is_container())
|
||
{
|
||
if (result.count() == 0)
|
||
{
|
||
add_to_option(*m_next_positional, a);
|
||
++m_next_positional;
|
||
return true;
|
||
}
|
||
else
|
||
{
|
||
++m_next_positional;
|
||
continue;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
add_to_option(*m_next_positional, a);
|
||
return true;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
throw option_not_exists_exception(*m_next_positional);
|
||
}
|
||
}
|
||
|
||
return false;
|
||
}
|
||
|
||
inline
|
||
void
|
||
Options::parse_positional(std::string option)
|
||
{
|
||
parse_positional(std::vector<std::string>{std::move(option)});
|
||
}
|
||
|
||
inline
|
||
void
|
||
Options::parse_positional(std::vector<std::string> options)
|
||
{
|
||
m_positional = std::move(options);
|
||
m_next_positional = m_positional.begin();
|
||
|
||
m_positional_set.insert(m_positional.begin(), m_positional.end());
|
||
}
|
||
|
||
inline
|
||
void
|
||
Options::parse_positional(std::initializer_list<std::string> options)
|
||
{
|
||
parse_positional(std::vector<std::string>(std::move(options)));
|
||
}
|
||
|
||
inline
|
||
ParseResult
|
||
Options::parse(int& argc, char**& argv)
|
||
{
|
||
ParseResult result(m_options, m_positional, m_allow_unrecognised, argc, argv);
|
||
return result;
|
||
}
|
||
|
||
inline
|
||
void
|
||
ParseResult::parse(int& argc, char**& argv)
|
||
{
|
||
int current = 1;
|
||
|
||
int nextKeep = 1;
|
||
|
||
bool consume_remaining = false;
|
||
|
||
while (current != argc)
|
||
{
|
||
if (strcmp(argv[current], "--") == 0)
|
||
{
|
||
consume_remaining = true;
|
||
++current;
|
||
break;
|
||
}
|
||
|
||
std::match_results<const char*> result;
|
||
std::regex_match(argv[current], result, option_matcher);
|
||
|
||
if (result.empty())
|
||
{
|
||
//not a flag
|
||
|
||
// but if it starts with a `-`, then it's an error
|
||
if (argv[current][0] == '-' && argv[current][1] != '\0') {
|
||
if (!m_allow_unrecognised) {
|
||
throw option_syntax_exception(argv[current]);
|
||
}
|
||
}
|
||
|
||
//if true is returned here then it was consumed, otherwise it is
|
||
//ignored
|
||
if (consume_positional(argv[current]))
|
||
{
|
||
}
|
||
else
|
||
{
|
||
argv[nextKeep] = argv[current];
|
||
++nextKeep;
|
||
}
|
||
//if we return from here then it was parsed successfully, so continue
|
||
}
|
||
else
|
||
{
|
||
//short or long option?
|
||
if (result[4].length() != 0)
|
||
{
|
||
const std::string& s = result[4];
|
||
|
||
for (std::size_t i = 0; i != s.size(); ++i)
|
||
{
|
||
std::string name(1, s[i]);
|
||
auto iter = m_options->find(name);
|
||
|
||
if (iter == m_options->end())
|
||
{
|
||
if (m_allow_unrecognised)
|
||
{
|
||
continue;
|
||
}
|
||
else
|
||
{
|
||
//error
|
||
throw option_not_exists_exception(name);
|
||
}
|
||
}
|
||
|
||
auto value = iter->second;
|
||
|
||
if (i + 1 == s.size())
|
||
{
|
||
//it must be the last argument
|
||
checked_parse_arg(argc, argv, current, value, name);
|
||
}
|
||
else if (value->value().has_implicit())
|
||
{
|
||
parse_option(value, name, value->value().get_implicit_value());
|
||
}
|
||
else
|
||
{
|
||
//error
|
||
throw option_requires_argument_exception(name);
|
||
}
|
||
}
|
||
}
|
||
else if (result[1].length() != 0)
|
||
{
|
||
const std::string& name = result[1];
|
||
|
||
auto iter = m_options->find(name);
|
||
|
||
if (iter == m_options->end())
|
||
{
|
||
if (m_allow_unrecognised)
|
||
{
|
||
// keep unrecognised options in argument list, skip to next argument
|
||
argv[nextKeep] = argv[current];
|
||
++nextKeep;
|
||
++current;
|
||
continue;
|
||
}
|
||
else
|
||
{
|
||
//error
|
||
throw option_not_exists_exception(name);
|
||
}
|
||
}
|
||
|
||
auto opt = iter->second;
|
||
|
||
//equals provided for long option?
|
||
if (result[2].length() != 0)
|
||
{
|
||
//parse the option given
|
||
|
||
parse_option(opt, name, result[3]);
|
||
}
|
||
else
|
||
{
|
||
//parse the next argument
|
||
checked_parse_arg(argc, argv, current, opt, name);
|
||
}
|
||
}
|
||
|
||
}
|
||
|
||
++current;
|
||
}
|
||
|
||
for (auto& opt : *m_options)
|
||
{
|
||
auto& detail = opt.second;
|
||
auto& value = detail->value();
|
||
|
||
auto& store = m_results[detail];
|
||
|
||
if(!store.count() && value.has_default()){
|
||
parse_default(detail);
|
||
}
|
||
}
|
||
|
||
if (consume_remaining)
|
||
{
|
||
while (current < argc)
|
||
{
|
||
if (!consume_positional(argv[current])) {
|
||
break;
|
||
}
|
||
++current;
|
||
}
|
||
|
||
//adjust argv for any that couldn't be swallowed
|
||
while (current != argc) {
|
||
argv[nextKeep] = argv[current];
|
||
++nextKeep;
|
||
++current;
|
||
}
|
||
}
|
||
|
||
argc = nextKeep;
|
||
|
||
}
|
||
|
||
inline
|
||
void
|
||
Options::add_option
|
||
(
|
||
const std::string& group,
|
||
const std::string& s,
|
||
const std::string& l,
|
||
std::string desc,
|
||
std::shared_ptr<const Value> value,
|
||
std::string arg_help
|
||
)
|
||
{
|
||
auto stringDesc = toLocalString(std::move(desc));
|
||
auto option = std::make_shared<OptionDetails>(s, l, stringDesc, value);
|
||
|
||
if (s.size() > 0)
|
||
{
|
||
add_one_option(s, option);
|
||
}
|
||
|
||
if (l.size() > 0)
|
||
{
|
||
add_one_option(l, option);
|
||
}
|
||
|
||
//add the help details
|
||
auto& options = m_help[group];
|
||
|
||
options.options.emplace_back(HelpOptionDetails{s, l, stringDesc,
|
||
value->has_default(), value->get_default_value(),
|
||
value->has_implicit(), value->get_implicit_value(),
|
||
std::move(arg_help),
|
||
value->is_container(),
|
||
value->is_boolean()});
|
||
}
|
||
|
||
inline
|
||
void
|
||
Options::add_one_option
|
||
(
|
||
const std::string& option,
|
||
std::shared_ptr<OptionDetails> details
|
||
)
|
||
{
|
||
auto in = m_options->emplace(option, details);
|
||
|
||
if (!in.second)
|
||
{
|
||
throw option_exists_error(option);
|
||
}
|
||
}
|
||
|
||
inline
|
||
String
|
||
Options::help_one_group(const std::string& g) const
|
||
{
|
||
typedef std::vector<std::pair<String, String>> OptionHelp;
|
||
|
||
auto group = m_help.find(g);
|
||
if (group == m_help.end())
|
||
{
|
||
return "";
|
||
}
|
||
|
||
OptionHelp format;
|
||
|
||
size_t longest = 0;
|
||
|
||
String result;
|
||
|
||
if (!g.empty())
|
||
{
|
||
result += toLocalString(" " + g + " options:\n");
|
||
}
|
||
|
||
for (const auto& o : group->second.options)
|
||
{
|
||
if (m_positional_set.find(o.l) != m_positional_set.end() &&
|
||
!m_show_positional)
|
||
{
|
||
continue;
|
||
}
|
||
|
||
auto s = format_option(o);
|
||
longest = (std::max)(longest, stringLength(s));
|
||
format.push_back(std::make_pair(s, String()));
|
||
}
|
||
|
||
longest = (std::min)(longest, static_cast<size_t>(OPTION_LONGEST));
|
||
|
||
//widest allowed description
|
||
auto allowed = size_t{76} - longest - OPTION_DESC_GAP;
|
||
|
||
auto fiter = format.begin();
|
||
for (const auto& o : group->second.options)
|
||
{
|
||
if (m_positional_set.find(o.l) != m_positional_set.end() &&
|
||
!m_show_positional)
|
||
{
|
||
continue;
|
||
}
|
||
|
||
auto d = format_description(o, longest + OPTION_DESC_GAP, allowed);
|
||
|
||
result += fiter->first;
|
||
if (stringLength(fiter->first) > longest)
|
||
{
|
||
result += '\n';
|
||
result += toLocalString(std::string(longest + OPTION_DESC_GAP, ' '));
|
||
}
|
||
else
|
||
{
|
||
result += toLocalString(std::string(longest + OPTION_DESC_GAP -
|
||
stringLength(fiter->first),
|
||
' '));
|
||
}
|
||
result += d;
|
||
result += '\n';
|
||
|
||
++fiter;
|
||
}
|
||
|
||
return result;
|
||
}
|
||
|
||
inline
|
||
void
|
||
Options::generate_group_help
|
||
(
|
||
String& result,
|
||
const std::vector<std::string>& print_groups
|
||
) const
|
||
{
|
||
for (size_t i = 0; i != print_groups.size(); ++i)
|
||
{
|
||
const String& group_help_text = help_one_group(print_groups[i]);
|
||
if (empty(group_help_text))
|
||
{
|
||
continue;
|
||
}
|
||
result += group_help_text;
|
||
if (i < print_groups.size() - 1)
|
||
{
|
||
result += '\n';
|
||
}
|
||
}
|
||
}
|
||
|
||
inline
|
||
void
|
||
Options::generate_all_groups_help(String& result) const
|
||
{
|
||
std::vector<std::string> all_groups;
|
||
all_groups.reserve(m_help.size());
|
||
|
||
for (auto& group : m_help)
|
||
{
|
||
all_groups.push_back(group.first);
|
||
}
|
||
|
||
generate_group_help(result, all_groups);
|
||
}
|
||
|
||
inline
|
||
std::string
|
||
Options::help(const std::vector<std::string>& help_groups) const
|
||
{
|
||
String result = m_help_string + "\nUsage:\n " +
|
||
toLocalString(m_program) + " " + toLocalString(m_custom_help);
|
||
|
||
if (m_positional.size() > 0 && m_positional_help.size() > 0) {
|
||
result += " " + toLocalString(m_positional_help);
|
||
}
|
||
|
||
result += "\n\n";
|
||
|
||
if (help_groups.size() == 0)
|
||
{
|
||
generate_all_groups_help(result);
|
||
}
|
||
else
|
||
{
|
||
generate_group_help(result, help_groups);
|
||
}
|
||
|
||
return toUTF8String(result);
|
||
}
|
||
|
||
inline
|
||
const std::vector<std::string>
|
||
Options::groups() const
|
||
{
|
||
std::vector<std::string> g;
|
||
|
||
std::transform(
|
||
m_help.begin(),
|
||
m_help.end(),
|
||
std::back_inserter(g),
|
||
[] (const std::map<std::string, HelpGroupDetails>::value_type& pair)
|
||
{
|
||
return pair.first;
|
||
}
|
||
);
|
||
|
||
return g;
|
||
}
|
||
|
||
inline
|
||
const HelpGroupDetails&
|
||
Options::group_help(const std::string& group) const
|
||
{
|
||
return m_help.at(group);
|
||
}
|
||
|
||
}
|
||
|
||
#endif //CXXOPTS_HPP_INCLUDED
|