Defines value parsing support used by typed options and positional parameters. More...
#include <charconv>#include <concepts>#include <exception>#include <format>#include <string_view>#include <system_error>#include <type_traits>#include <kaycxx/cli/parse_error.hpp>
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Concepts | |
| concept | kaycxx::cli::from_chars_parseable |
Checks whether a type can be parsed with std::from_chars. | |
| concept | kaycxx::cli::string_view_constructible |
Checks whether a type can be constructed from std::string_view. | |
| concept | kaycxx::cli::from_string_parseable |
Checks whether a type can be parsed with an ADL-discovered from_string function. | |
| concept | kaycxx::cli::parseable_value |
| Checks whether a type can be used as a command line value. | |
Functions | |
| template<parseable_value T> | |
| T | kaycxx::cli::detail::parse_value (std::string_view text) |
| Parses a command line value. | |
Detailed Description
Defines value parsing support used by typed options and positional parameters.
Function Documentation
◆ parse_value()
template<parseable_value T>
| T kaycxx::cli::detail::parse_value | ( | std::string_view | text | ) |
Parses a command line value.
Parsing tries std::from_chars first, then ADL from_string, and finally construction from std::string_view.
- Template Parameters
-
T Value type to parse.
- Parameters
-
text Value text to parse.
- Returns
- Parsed value.
- Exceptions
-
parse_error When the value is syntactically invalid.
