parse without a file

[haasdo95]

It is my understanding that currently lexy::parse only accepts a file returned by lexy::read_file. Is it possible to let lexy::parse accept a std::string?
I know this is not strictly necessary: this is a parser after all. But this feature will prove useful for unit testing.
Thanks!

[foonathan]

The lexy::parse function accepts an arbitrary Input. The buffer returned by lexy::read_file is one, but there are multiple others: https://lexy.foonathan.net/reference/#input

You want the lexy::string_input: https://lexy.foonathan.net/reference/input/string_input/

std::string str = ...;
auto result = lexy::parse<production>(lexy::string_input(str), …);