arg_router::policy::custom_parser< T > Class Template Reference

#include <arg_router/policy/custom_parser.hpp>

Public Types
using	value_type = T
using	parser_type = std::function< value_type(std::string_view)>

Public Member Functions
constexpr	custom_parser (parser_type p) noexcept
template<typename ValueType , typename... Parents>
constexpr ValueType	parse_phase (std::string_view token, [[maybe_unused]] const Parents &... parents) const

Detailed Description

template<typename T>
class arg_router::policy::custom_parser< T >

Provides the ability for an argument to have a user-provided value parser.

Template Parameters

T	Argument's value type i.e. the type the parser needs to return

Definition at line 20 of file custom_parser.hpp.

Member Typedef Documentation

parser_type

template<typename T >

using arg_router::policy::custom_parser< T >::parser_type = std::function<value_type(std::string_view)>

Parser signature.

Definition at line 27 of file custom_parser.hpp.

value_type

template<typename T >

using arg_router::policy::custom_parser< T >::value_type = T

Alias of T.

Definition at line 24 of file custom_parser.hpp.

Constructor & Destructor Documentation

custom_parser()

template<typename T >

constexpr arg_router::policy::custom_parser< T >::custom_parser ( parser_type  p )

inlineexplicitconstexprnoexcept

Constructor.

Parameters

p	Custom parser

Definition at line 33 of file custom_parser.hpp.

Member Function Documentation

parse_phase()

template<typename T >

template<typename ValueType , typename... Parents>

constexpr ValueType arg_router::policy::custom_parser< T >::parse_phase ( std::string_view  token, [[maybe_unused] ] const Parents &...  parents  ) const

inlineconstexpr

Parse str to produce an equivalent instance of value_type.

Template Parameters

ValueType	Parsed value type, must be implicity convertible from value_type
Parents	Pack of parent tree nodes in ascending ancestry order

Parameters

token	Token to parse
parents	Parents instances pack

Returns

Parsed value

Exceptions

multi_lang_exception

Thrown if parsing failed

Definition at line 45 of file custom_parser.hpp.

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The documentation for this class was generated from the following file:

• arg_router/policy/custom_parser.hpp